forked from OSchip/llvm-project
2018 lines
66 KiB
C++
2018 lines
66 KiB
C++
//===-- PPCAsmParser.cpp - Parse PowerPC asm to MCInst instructions -------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "MCTargetDesc/PPCMCExpr.h"
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#include "MCTargetDesc/PPCMCTargetDesc.h"
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#include "PPCTargetStreamer.h"
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#include "llvm/ADT/STLExtras.h"
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#include "llvm/ADT/StringSwitch.h"
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#include "llvm/ADT/Twine.h"
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#include "llvm/MC/MCContext.h"
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#include "llvm/MC/MCExpr.h"
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#include "llvm/MC/MCInst.h"
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#include "llvm/MC/MCInstrInfo.h"
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#include "llvm/MC/MCParser/MCAsmLexer.h"
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#include "llvm/MC/MCParser/MCAsmParser.h"
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#include "llvm/MC/MCParser/MCParsedAsmOperand.h"
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#include "llvm/MC/MCParser/MCTargetAsmParser.h"
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#include "llvm/MC/MCRegisterInfo.h"
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#include "llvm/MC/MCStreamer.h"
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#include "llvm/MC/MCSubtargetInfo.h"
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#include "llvm/MC/MCSymbolELF.h"
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#include "llvm/Support/SourceMgr.h"
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#include "llvm/Support/TargetRegistry.h"
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#include "llvm/Support/raw_ostream.h"
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using namespace llvm;
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static const MCPhysReg RRegs[32] = {
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PPC::R0, PPC::R1, PPC::R2, PPC::R3,
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PPC::R4, PPC::R5, PPC::R6, PPC::R7,
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PPC::R8, PPC::R9, PPC::R10, PPC::R11,
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PPC::R12, PPC::R13, PPC::R14, PPC::R15,
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PPC::R16, PPC::R17, PPC::R18, PPC::R19,
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PPC::R20, PPC::R21, PPC::R22, PPC::R23,
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PPC::R24, PPC::R25, PPC::R26, PPC::R27,
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PPC::R28, PPC::R29, PPC::R30, PPC::R31
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};
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static const MCPhysReg RRegsNoR0[32] = {
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PPC::ZERO,
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PPC::R1, PPC::R2, PPC::R3,
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PPC::R4, PPC::R5, PPC::R6, PPC::R7,
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PPC::R8, PPC::R9, PPC::R10, PPC::R11,
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PPC::R12, PPC::R13, PPC::R14, PPC::R15,
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PPC::R16, PPC::R17, PPC::R18, PPC::R19,
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PPC::R20, PPC::R21, PPC::R22, PPC::R23,
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PPC::R24, PPC::R25, PPC::R26, PPC::R27,
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PPC::R28, PPC::R29, PPC::R30, PPC::R31
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};
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static const MCPhysReg XRegs[32] = {
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PPC::X0, PPC::X1, PPC::X2, PPC::X3,
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PPC::X4, PPC::X5, PPC::X6, PPC::X7,
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PPC::X8, PPC::X9, PPC::X10, PPC::X11,
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PPC::X12, PPC::X13, PPC::X14, PPC::X15,
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PPC::X16, PPC::X17, PPC::X18, PPC::X19,
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PPC::X20, PPC::X21, PPC::X22, PPC::X23,
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PPC::X24, PPC::X25, PPC::X26, PPC::X27,
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PPC::X28, PPC::X29, PPC::X30, PPC::X31
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};
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static const MCPhysReg XRegsNoX0[32] = {
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PPC::ZERO8,
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PPC::X1, PPC::X2, PPC::X3,
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PPC::X4, PPC::X5, PPC::X6, PPC::X7,
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PPC::X8, PPC::X9, PPC::X10, PPC::X11,
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PPC::X12, PPC::X13, PPC::X14, PPC::X15,
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PPC::X16, PPC::X17, PPC::X18, PPC::X19,
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PPC::X20, PPC::X21, PPC::X22, PPC::X23,
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PPC::X24, PPC::X25, PPC::X26, PPC::X27,
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PPC::X28, PPC::X29, PPC::X30, PPC::X31
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};
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static const MCPhysReg FRegs[32] = {
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PPC::F0, PPC::F1, PPC::F2, PPC::F3,
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PPC::F4, PPC::F5, PPC::F6, PPC::F7,
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PPC::F8, PPC::F9, PPC::F10, PPC::F11,
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PPC::F12, PPC::F13, PPC::F14, PPC::F15,
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PPC::F16, PPC::F17, PPC::F18, PPC::F19,
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PPC::F20, PPC::F21, PPC::F22, PPC::F23,
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PPC::F24, PPC::F25, PPC::F26, PPC::F27,
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PPC::F28, PPC::F29, PPC::F30, PPC::F31
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};
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static const MCPhysReg SPERegs[32] = {
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PPC::S0, PPC::S1, PPC::S2, PPC::S3,
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PPC::S4, PPC::S5, PPC::S6, PPC::S7,
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PPC::S8, PPC::S9, PPC::S10, PPC::S11,
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PPC::S12, PPC::S13, PPC::S14, PPC::S15,
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PPC::S16, PPC::S17, PPC::S18, PPC::S19,
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PPC::S20, PPC::S21, PPC::S22, PPC::S23,
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PPC::S24, PPC::S25, PPC::S26, PPC::S27,
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PPC::S28, PPC::S29, PPC::S30, PPC::S31
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};
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static const MCPhysReg VFRegs[32] = {
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PPC::VF0, PPC::VF1, PPC::VF2, PPC::VF3,
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PPC::VF4, PPC::VF5, PPC::VF6, PPC::VF7,
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PPC::VF8, PPC::VF9, PPC::VF10, PPC::VF11,
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PPC::VF12, PPC::VF13, PPC::VF14, PPC::VF15,
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PPC::VF16, PPC::VF17, PPC::VF18, PPC::VF19,
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PPC::VF20, PPC::VF21, PPC::VF22, PPC::VF23,
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PPC::VF24, PPC::VF25, PPC::VF26, PPC::VF27,
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PPC::VF28, PPC::VF29, PPC::VF30, PPC::VF31
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};
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static const MCPhysReg VRegs[32] = {
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PPC::V0, PPC::V1, PPC::V2, PPC::V3,
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PPC::V4, PPC::V5, PPC::V6, PPC::V7,
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PPC::V8, PPC::V9, PPC::V10, PPC::V11,
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PPC::V12, PPC::V13, PPC::V14, PPC::V15,
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PPC::V16, PPC::V17, PPC::V18, PPC::V19,
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PPC::V20, PPC::V21, PPC::V22, PPC::V23,
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PPC::V24, PPC::V25, PPC::V26, PPC::V27,
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PPC::V28, PPC::V29, PPC::V30, PPC::V31
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};
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static const MCPhysReg VSRegs[64] = {
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PPC::VSL0, PPC::VSL1, PPC::VSL2, PPC::VSL3,
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PPC::VSL4, PPC::VSL5, PPC::VSL6, PPC::VSL7,
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PPC::VSL8, PPC::VSL9, PPC::VSL10, PPC::VSL11,
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PPC::VSL12, PPC::VSL13, PPC::VSL14, PPC::VSL15,
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PPC::VSL16, PPC::VSL17, PPC::VSL18, PPC::VSL19,
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PPC::VSL20, PPC::VSL21, PPC::VSL22, PPC::VSL23,
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PPC::VSL24, PPC::VSL25, PPC::VSL26, PPC::VSL27,
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PPC::VSL28, PPC::VSL29, PPC::VSL30, PPC::VSL31,
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PPC::V0, PPC::V1, PPC::V2, PPC::V3,
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PPC::V4, PPC::V5, PPC::V6, PPC::V7,
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PPC::V8, PPC::V9, PPC::V10, PPC::V11,
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PPC::V12, PPC::V13, PPC::V14, PPC::V15,
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PPC::V16, PPC::V17, PPC::V18, PPC::V19,
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PPC::V20, PPC::V21, PPC::V22, PPC::V23,
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PPC::V24, PPC::V25, PPC::V26, PPC::V27,
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PPC::V28, PPC::V29, PPC::V30, PPC::V31
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};
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static const MCPhysReg VSFRegs[64] = {
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PPC::F0, PPC::F1, PPC::F2, PPC::F3,
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PPC::F4, PPC::F5, PPC::F6, PPC::F7,
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PPC::F8, PPC::F9, PPC::F10, PPC::F11,
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PPC::F12, PPC::F13, PPC::F14, PPC::F15,
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PPC::F16, PPC::F17, PPC::F18, PPC::F19,
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PPC::F20, PPC::F21, PPC::F22, PPC::F23,
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PPC::F24, PPC::F25, PPC::F26, PPC::F27,
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PPC::F28, PPC::F29, PPC::F30, PPC::F31,
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PPC::VF0, PPC::VF1, PPC::VF2, PPC::VF3,
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PPC::VF4, PPC::VF5, PPC::VF6, PPC::VF7,
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PPC::VF8, PPC::VF9, PPC::VF10, PPC::VF11,
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PPC::VF12, PPC::VF13, PPC::VF14, PPC::VF15,
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PPC::VF16, PPC::VF17, PPC::VF18, PPC::VF19,
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PPC::VF20, PPC::VF21, PPC::VF22, PPC::VF23,
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PPC::VF24, PPC::VF25, PPC::VF26, PPC::VF27,
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PPC::VF28, PPC::VF29, PPC::VF30, PPC::VF31
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};
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static const MCPhysReg VSSRegs[64] = {
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PPC::F0, PPC::F1, PPC::F2, PPC::F3,
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PPC::F4, PPC::F5, PPC::F6, PPC::F7,
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PPC::F8, PPC::F9, PPC::F10, PPC::F11,
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PPC::F12, PPC::F13, PPC::F14, PPC::F15,
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PPC::F16, PPC::F17, PPC::F18, PPC::F19,
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PPC::F20, PPC::F21, PPC::F22, PPC::F23,
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PPC::F24, PPC::F25, PPC::F26, PPC::F27,
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PPC::F28, PPC::F29, PPC::F30, PPC::F31,
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PPC::VF0, PPC::VF1, PPC::VF2, PPC::VF3,
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PPC::VF4, PPC::VF5, PPC::VF6, PPC::VF7,
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PPC::VF8, PPC::VF9, PPC::VF10, PPC::VF11,
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PPC::VF12, PPC::VF13, PPC::VF14, PPC::VF15,
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PPC::VF16, PPC::VF17, PPC::VF18, PPC::VF19,
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PPC::VF20, PPC::VF21, PPC::VF22, PPC::VF23,
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PPC::VF24, PPC::VF25, PPC::VF26, PPC::VF27,
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PPC::VF28, PPC::VF29, PPC::VF30, PPC::VF31
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};
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static unsigned QFRegs[32] = {
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PPC::QF0, PPC::QF1, PPC::QF2, PPC::QF3,
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PPC::QF4, PPC::QF5, PPC::QF6, PPC::QF7,
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PPC::QF8, PPC::QF9, PPC::QF10, PPC::QF11,
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PPC::QF12, PPC::QF13, PPC::QF14, PPC::QF15,
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PPC::QF16, PPC::QF17, PPC::QF18, PPC::QF19,
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PPC::QF20, PPC::QF21, PPC::QF22, PPC::QF23,
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PPC::QF24, PPC::QF25, PPC::QF26, PPC::QF27,
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PPC::QF28, PPC::QF29, PPC::QF30, PPC::QF31
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};
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static const MCPhysReg CRBITRegs[32] = {
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PPC::CR0LT, PPC::CR0GT, PPC::CR0EQ, PPC::CR0UN,
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PPC::CR1LT, PPC::CR1GT, PPC::CR1EQ, PPC::CR1UN,
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PPC::CR2LT, PPC::CR2GT, PPC::CR2EQ, PPC::CR2UN,
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PPC::CR3LT, PPC::CR3GT, PPC::CR3EQ, PPC::CR3UN,
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PPC::CR4LT, PPC::CR4GT, PPC::CR4EQ, PPC::CR4UN,
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PPC::CR5LT, PPC::CR5GT, PPC::CR5EQ, PPC::CR5UN,
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PPC::CR6LT, PPC::CR6GT, PPC::CR6EQ, PPC::CR6UN,
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PPC::CR7LT, PPC::CR7GT, PPC::CR7EQ, PPC::CR7UN
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};
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static const MCPhysReg CRRegs[8] = {
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PPC::CR0, PPC::CR1, PPC::CR2, PPC::CR3,
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PPC::CR4, PPC::CR5, PPC::CR6, PPC::CR7
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};
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// Evaluate an expression containing condition register
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// or condition register field symbols. Returns positive
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// value on success, or -1 on error.
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static int64_t
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EvaluateCRExpr(const MCExpr *E) {
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switch (E->getKind()) {
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case MCExpr::Target:
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return -1;
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case MCExpr::Constant: {
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int64_t Res = cast<MCConstantExpr>(E)->getValue();
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return Res < 0 ? -1 : Res;
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}
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case MCExpr::SymbolRef: {
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const MCSymbolRefExpr *SRE = cast<MCSymbolRefExpr>(E);
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StringRef Name = SRE->getSymbol().getName();
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if (Name == "lt") return 0;
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if (Name == "gt") return 1;
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if (Name == "eq") return 2;
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if (Name == "so") return 3;
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if (Name == "un") return 3;
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if (Name == "cr0") return 0;
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if (Name == "cr1") return 1;
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if (Name == "cr2") return 2;
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if (Name == "cr3") return 3;
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if (Name == "cr4") return 4;
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if (Name == "cr5") return 5;
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if (Name == "cr6") return 6;
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if (Name == "cr7") return 7;
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return -1;
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}
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case MCExpr::Unary:
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return -1;
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case MCExpr::Binary: {
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const MCBinaryExpr *BE = cast<MCBinaryExpr>(E);
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int64_t LHSVal = EvaluateCRExpr(BE->getLHS());
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int64_t RHSVal = EvaluateCRExpr(BE->getRHS());
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int64_t Res;
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if (LHSVal < 0 || RHSVal < 0)
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return -1;
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switch (BE->getOpcode()) {
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default: return -1;
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case MCBinaryExpr::Add: Res = LHSVal + RHSVal; break;
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case MCBinaryExpr::Mul: Res = LHSVal * RHSVal; break;
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}
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return Res < 0 ? -1 : Res;
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}
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}
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llvm_unreachable("Invalid expression kind!");
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}
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namespace {
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struct PPCOperand;
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class PPCAsmParser : public MCTargetAsmParser {
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bool IsPPC64;
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bool IsDarwin;
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void Warning(SMLoc L, const Twine &Msg) { getParser().Warning(L, Msg); }
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bool isPPC64() const { return IsPPC64; }
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bool isDarwin() const { return IsDarwin; }
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bool MatchRegisterName(unsigned &RegNo, int64_t &IntVal);
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bool ParseRegister(unsigned &RegNo, SMLoc &StartLoc, SMLoc &EndLoc) override;
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const MCExpr *ExtractModifierFromExpr(const MCExpr *E,
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PPCMCExpr::VariantKind &Variant);
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const MCExpr *FixupVariantKind(const MCExpr *E);
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bool ParseExpression(const MCExpr *&EVal);
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bool ParseDarwinExpression(const MCExpr *&EVal);
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bool ParseOperand(OperandVector &Operands);
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bool ParseDirectiveWord(unsigned Size, AsmToken ID);
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bool ParseDirectiveTC(unsigned Size, AsmToken ID);
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bool ParseDirectiveMachine(SMLoc L);
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bool ParseDarwinDirectiveMachine(SMLoc L);
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bool ParseDirectiveAbiVersion(SMLoc L);
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bool ParseDirectiveLocalEntry(SMLoc L);
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bool MatchAndEmitInstruction(SMLoc IDLoc, unsigned &Opcode,
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OperandVector &Operands, MCStreamer &Out,
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uint64_t &ErrorInfo,
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bool MatchingInlineAsm) override;
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void ProcessInstruction(MCInst &Inst, const OperandVector &Ops);
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/// @name Auto-generated Match Functions
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/// {
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#define GET_ASSEMBLER_HEADER
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#include "PPCGenAsmMatcher.inc"
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/// }
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public:
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PPCAsmParser(const MCSubtargetInfo &STI, MCAsmParser &,
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const MCInstrInfo &MII, const MCTargetOptions &Options)
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: MCTargetAsmParser(Options, STI, MII) {
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// Check for 64-bit vs. 32-bit pointer mode.
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const Triple &TheTriple = STI.getTargetTriple();
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IsPPC64 = (TheTriple.getArch() == Triple::ppc64 ||
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TheTriple.getArch() == Triple::ppc64le);
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IsDarwin = TheTriple.isMacOSX();
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// Initialize the set of available features.
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setAvailableFeatures(ComputeAvailableFeatures(STI.getFeatureBits()));
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}
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bool ParseInstruction(ParseInstructionInfo &Info, StringRef Name,
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SMLoc NameLoc, OperandVector &Operands) override;
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bool ParseDirective(AsmToken DirectiveID) override;
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unsigned validateTargetOperandClass(MCParsedAsmOperand &Op,
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unsigned Kind) override;
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const MCExpr *applyModifierToExpr(const MCExpr *E,
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MCSymbolRefExpr::VariantKind,
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MCContext &Ctx) override;
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};
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/// PPCOperand - Instances of this class represent a parsed PowerPC machine
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/// instruction.
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struct PPCOperand : public MCParsedAsmOperand {
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enum KindTy {
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Token,
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Immediate,
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ContextImmediate,
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Expression,
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TLSRegister
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} Kind;
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SMLoc StartLoc, EndLoc;
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bool IsPPC64;
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struct TokOp {
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const char *Data;
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unsigned Length;
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};
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struct ImmOp {
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int64_t Val;
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};
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struct ExprOp {
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const MCExpr *Val;
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int64_t CRVal; // Cached result of EvaluateCRExpr(Val)
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};
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struct TLSRegOp {
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const MCSymbolRefExpr *Sym;
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};
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union {
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struct TokOp Tok;
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struct ImmOp Imm;
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struct ExprOp Expr;
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struct TLSRegOp TLSReg;
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};
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PPCOperand(KindTy K) : MCParsedAsmOperand(), Kind(K) {}
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public:
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PPCOperand(const PPCOperand &o) : MCParsedAsmOperand() {
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Kind = o.Kind;
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StartLoc = o.StartLoc;
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EndLoc = o.EndLoc;
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IsPPC64 = o.IsPPC64;
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switch (Kind) {
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case Token:
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Tok = o.Tok;
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break;
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case Immediate:
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case ContextImmediate:
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Imm = o.Imm;
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break;
|
|
case Expression:
|
|
Expr = o.Expr;
|
|
break;
|
|
case TLSRegister:
|
|
TLSReg = o.TLSReg;
|
|
break;
|
|
}
|
|
}
|
|
|
|
// Disable use of sized deallocation due to overallocation of PPCOperand
|
|
// objects in CreateTokenWithStringCopy.
|
|
void operator delete(void *p) { ::operator delete(p); }
|
|
|
|
/// getStartLoc - Get the location of the first token of this operand.
|
|
SMLoc getStartLoc() const override { return StartLoc; }
|
|
|
|
/// getEndLoc - Get the location of the last token of this operand.
|
|
SMLoc getEndLoc() const override { return EndLoc; }
|
|
|
|
/// getLocRange - Get the range between the first and last token of this
|
|
/// operand.
|
|
SMRange getLocRange() const { return SMRange(StartLoc, EndLoc); }
|
|
|
|
/// isPPC64 - True if this operand is for an instruction in 64-bit mode.
|
|
bool isPPC64() const { return IsPPC64; }
|
|
|
|
int64_t getImm() const {
|
|
assert(Kind == Immediate && "Invalid access!");
|
|
return Imm.Val;
|
|
}
|
|
int64_t getImmS16Context() const {
|
|
assert((Kind == Immediate || Kind == ContextImmediate) &&
|
|
"Invalid access!");
|
|
if (Kind == Immediate)
|
|
return Imm.Val;
|
|
return static_cast<int16_t>(Imm.Val);
|
|
}
|
|
int64_t getImmU16Context() const {
|
|
assert((Kind == Immediate || Kind == ContextImmediate) &&
|
|
"Invalid access!");
|
|
return Imm.Val;
|
|
}
|
|
|
|
const MCExpr *getExpr() const {
|
|
assert(Kind == Expression && "Invalid access!");
|
|
return Expr.Val;
|
|
}
|
|
|
|
int64_t getExprCRVal() const {
|
|
assert(Kind == Expression && "Invalid access!");
|
|
return Expr.CRVal;
|
|
}
|
|
|
|
const MCExpr *getTLSReg() const {
|
|
assert(Kind == TLSRegister && "Invalid access!");
|
|
return TLSReg.Sym;
|
|
}
|
|
|
|
unsigned getReg() const override {
|
|
assert(isRegNumber() && "Invalid access!");
|
|
return (unsigned) Imm.Val;
|
|
}
|
|
|
|
unsigned getVSReg() const {
|
|
assert(isVSRegNumber() && "Invalid access!");
|
|
return (unsigned) Imm.Val;
|
|
}
|
|
|
|
unsigned getCCReg() const {
|
|
assert(isCCRegNumber() && "Invalid access!");
|
|
return (unsigned) (Kind == Immediate ? Imm.Val : Expr.CRVal);
|
|
}
|
|
|
|
unsigned getCRBit() const {
|
|
assert(isCRBitNumber() && "Invalid access!");
|
|
return (unsigned) (Kind == Immediate ? Imm.Val : Expr.CRVal);
|
|
}
|
|
|
|
unsigned getCRBitMask() const {
|
|
assert(isCRBitMask() && "Invalid access!");
|
|
return 7 - countTrailingZeros<uint64_t>(Imm.Val);
|
|
}
|
|
|
|
bool isToken() const override { return Kind == Token; }
|
|
bool isImm() const override {
|
|
return Kind == Immediate || Kind == Expression;
|
|
}
|
|
bool isU1Imm() const { return Kind == Immediate && isUInt<1>(getImm()); }
|
|
bool isU2Imm() const { return Kind == Immediate && isUInt<2>(getImm()); }
|
|
bool isU3Imm() const { return Kind == Immediate && isUInt<3>(getImm()); }
|
|
bool isU4Imm() const { return Kind == Immediate && isUInt<4>(getImm()); }
|
|
bool isU5Imm() const { return Kind == Immediate && isUInt<5>(getImm()); }
|
|
bool isS5Imm() const { return Kind == Immediate && isInt<5>(getImm()); }
|
|
bool isU6Imm() const { return Kind == Immediate && isUInt<6>(getImm()); }
|
|
bool isU6ImmX2() const { return Kind == Immediate &&
|
|
isUInt<6>(getImm()) &&
|
|
(getImm() & 1) == 0; }
|
|
bool isU7Imm() const { return Kind == Immediate && isUInt<7>(getImm()); }
|
|
bool isU7ImmX4() const { return Kind == Immediate &&
|
|
isUInt<7>(getImm()) &&
|
|
(getImm() & 3) == 0; }
|
|
bool isU8Imm() const { return Kind == Immediate && isUInt<8>(getImm()); }
|
|
bool isU8ImmX8() const { return Kind == Immediate &&
|
|
isUInt<8>(getImm()) &&
|
|
(getImm() & 7) == 0; }
|
|
|
|
bool isU10Imm() const { return Kind == Immediate && isUInt<10>(getImm()); }
|
|
bool isU12Imm() const { return Kind == Immediate && isUInt<12>(getImm()); }
|
|
bool isU16Imm() const {
|
|
switch (Kind) {
|
|
case Expression:
|
|
return true;
|
|
case Immediate:
|
|
case ContextImmediate:
|
|
return isUInt<16>(getImmU16Context());
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
bool isS16Imm() const {
|
|
switch (Kind) {
|
|
case Expression:
|
|
return true;
|
|
case Immediate:
|
|
case ContextImmediate:
|
|
return isInt<16>(getImmS16Context());
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
bool isS16ImmX4() const { return Kind == Expression ||
|
|
(Kind == Immediate && isInt<16>(getImm()) &&
|
|
(getImm() & 3) == 0); }
|
|
bool isS16ImmX16() const { return Kind == Expression ||
|
|
(Kind == Immediate && isInt<16>(getImm()) &&
|
|
(getImm() & 15) == 0); }
|
|
bool isS17Imm() const {
|
|
switch (Kind) {
|
|
case Expression:
|
|
return true;
|
|
case Immediate:
|
|
case ContextImmediate:
|
|
return isInt<17>(getImmS16Context());
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
bool isTLSReg() const { return Kind == TLSRegister; }
|
|
bool isDirectBr() const {
|
|
if (Kind == Expression)
|
|
return true;
|
|
if (Kind != Immediate)
|
|
return false;
|
|
// Operand must be 64-bit aligned, signed 27-bit immediate.
|
|
if ((getImm() & 3) != 0)
|
|
return false;
|
|
if (isInt<26>(getImm()))
|
|
return true;
|
|
if (!IsPPC64) {
|
|
// In 32-bit mode, large 32-bit quantities wrap around.
|
|
if (isUInt<32>(getImm()) && isInt<26>(static_cast<int32_t>(getImm())))
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
bool isCondBr() const { return Kind == Expression ||
|
|
(Kind == Immediate && isInt<16>(getImm()) &&
|
|
(getImm() & 3) == 0); }
|
|
bool isRegNumber() const { return Kind == Immediate && isUInt<5>(getImm()); }
|
|
bool isVSRegNumber() const {
|
|
return Kind == Immediate && isUInt<6>(getImm());
|
|
}
|
|
bool isCCRegNumber() const { return (Kind == Expression
|
|
&& isUInt<3>(getExprCRVal())) ||
|
|
(Kind == Immediate
|
|
&& isUInt<3>(getImm())); }
|
|
bool isCRBitNumber() const { return (Kind == Expression
|
|
&& isUInt<5>(getExprCRVal())) ||
|
|
(Kind == Immediate
|
|
&& isUInt<5>(getImm())); }
|
|
bool isCRBitMask() const { return Kind == Immediate && isUInt<8>(getImm()) &&
|
|
isPowerOf2_32(getImm()); }
|
|
bool isATBitsAsHint() const { return false; }
|
|
bool isMem() const override { return false; }
|
|
bool isReg() const override { return false; }
|
|
|
|
void addRegOperands(MCInst &Inst, unsigned N) const {
|
|
llvm_unreachable("addRegOperands");
|
|
}
|
|
|
|
void addRegGPRCOperands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 1 && "Invalid number of operands!");
|
|
Inst.addOperand(MCOperand::createReg(RRegs[getReg()]));
|
|
}
|
|
|
|
void addRegGPRCNoR0Operands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 1 && "Invalid number of operands!");
|
|
Inst.addOperand(MCOperand::createReg(RRegsNoR0[getReg()]));
|
|
}
|
|
|
|
void addRegG8RCOperands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 1 && "Invalid number of operands!");
|
|
Inst.addOperand(MCOperand::createReg(XRegs[getReg()]));
|
|
}
|
|
|
|
void addRegG8RCNoX0Operands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 1 && "Invalid number of operands!");
|
|
Inst.addOperand(MCOperand::createReg(XRegsNoX0[getReg()]));
|
|
}
|
|
|
|
void addRegGxRCOperands(MCInst &Inst, unsigned N) const {
|
|
if (isPPC64())
|
|
addRegG8RCOperands(Inst, N);
|
|
else
|
|
addRegGPRCOperands(Inst, N);
|
|
}
|
|
|
|
void addRegGxRCNoR0Operands(MCInst &Inst, unsigned N) const {
|
|
if (isPPC64())
|
|
addRegG8RCNoX0Operands(Inst, N);
|
|
else
|
|
addRegGPRCNoR0Operands(Inst, N);
|
|
}
|
|
|
|
void addRegF4RCOperands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 1 && "Invalid number of operands!");
|
|
Inst.addOperand(MCOperand::createReg(FRegs[getReg()]));
|
|
}
|
|
|
|
void addRegF8RCOperands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 1 && "Invalid number of operands!");
|
|
Inst.addOperand(MCOperand::createReg(FRegs[getReg()]));
|
|
}
|
|
|
|
void addRegVFRCOperands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 1 && "Invalid number of operands!");
|
|
Inst.addOperand(MCOperand::createReg(VFRegs[getReg()]));
|
|
}
|
|
|
|
void addRegVRRCOperands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 1 && "Invalid number of operands!");
|
|
Inst.addOperand(MCOperand::createReg(VRegs[getReg()]));
|
|
}
|
|
|
|
void addRegVSRCOperands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 1 && "Invalid number of operands!");
|
|
Inst.addOperand(MCOperand::createReg(VSRegs[getVSReg()]));
|
|
}
|
|
|
|
void addRegVSFRCOperands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 1 && "Invalid number of operands!");
|
|
Inst.addOperand(MCOperand::createReg(VSFRegs[getVSReg()]));
|
|
}
|
|
|
|
void addRegVSSRCOperands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 1 && "Invalid number of operands!");
|
|
Inst.addOperand(MCOperand::createReg(VSSRegs[getVSReg()]));
|
|
}
|
|
|
|
void addRegQFRCOperands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 1 && "Invalid number of operands!");
|
|
Inst.addOperand(MCOperand::createReg(QFRegs[getReg()]));
|
|
}
|
|
|
|
void addRegQSRCOperands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 1 && "Invalid number of operands!");
|
|
Inst.addOperand(MCOperand::createReg(QFRegs[getReg()]));
|
|
}
|
|
|
|
void addRegQBRCOperands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 1 && "Invalid number of operands!");
|
|
Inst.addOperand(MCOperand::createReg(QFRegs[getReg()]));
|
|
}
|
|
|
|
void addRegSPE4RCOperands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 1 && "Invalid number of operands!");
|
|
Inst.addOperand(MCOperand::createReg(RRegs[getReg()]));
|
|
}
|
|
|
|
void addRegSPERCOperands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 1 && "Invalid number of operands!");
|
|
Inst.addOperand(MCOperand::createReg(SPERegs[getReg()]));
|
|
}
|
|
|
|
void addRegCRBITRCOperands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 1 && "Invalid number of operands!");
|
|
Inst.addOperand(MCOperand::createReg(CRBITRegs[getCRBit()]));
|
|
}
|
|
|
|
void addRegCRRCOperands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 1 && "Invalid number of operands!");
|
|
Inst.addOperand(MCOperand::createReg(CRRegs[getCCReg()]));
|
|
}
|
|
|
|
void addCRBitMaskOperands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 1 && "Invalid number of operands!");
|
|
Inst.addOperand(MCOperand::createReg(CRRegs[getCRBitMask()]));
|
|
}
|
|
|
|
void addImmOperands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 1 && "Invalid number of operands!");
|
|
if (Kind == Immediate)
|
|
Inst.addOperand(MCOperand::createImm(getImm()));
|
|
else
|
|
Inst.addOperand(MCOperand::createExpr(getExpr()));
|
|
}
|
|
|
|
void addS16ImmOperands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 1 && "Invalid number of operands!");
|
|
switch (Kind) {
|
|
case Immediate:
|
|
Inst.addOperand(MCOperand::createImm(getImm()));
|
|
break;
|
|
case ContextImmediate:
|
|
Inst.addOperand(MCOperand::createImm(getImmS16Context()));
|
|
break;
|
|
default:
|
|
Inst.addOperand(MCOperand::createExpr(getExpr()));
|
|
break;
|
|
}
|
|
}
|
|
|
|
void addU16ImmOperands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 1 && "Invalid number of operands!");
|
|
switch (Kind) {
|
|
case Immediate:
|
|
Inst.addOperand(MCOperand::createImm(getImm()));
|
|
break;
|
|
case ContextImmediate:
|
|
Inst.addOperand(MCOperand::createImm(getImmU16Context()));
|
|
break;
|
|
default:
|
|
Inst.addOperand(MCOperand::createExpr(getExpr()));
|
|
break;
|
|
}
|
|
}
|
|
|
|
void addBranchTargetOperands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 1 && "Invalid number of operands!");
|
|
if (Kind == Immediate)
|
|
Inst.addOperand(MCOperand::createImm(getImm() / 4));
|
|
else
|
|
Inst.addOperand(MCOperand::createExpr(getExpr()));
|
|
}
|
|
|
|
void addTLSRegOperands(MCInst &Inst, unsigned N) const {
|
|
assert(N == 1 && "Invalid number of operands!");
|
|
Inst.addOperand(MCOperand::createExpr(getTLSReg()));
|
|
}
|
|
|
|
StringRef getToken() const {
|
|
assert(Kind == Token && "Invalid access!");
|
|
return StringRef(Tok.Data, Tok.Length);
|
|
}
|
|
|
|
void print(raw_ostream &OS) const override;
|
|
|
|
static std::unique_ptr<PPCOperand> CreateToken(StringRef Str, SMLoc S,
|
|
bool IsPPC64) {
|
|
auto Op = make_unique<PPCOperand>(Token);
|
|
Op->Tok.Data = Str.data();
|
|
Op->Tok.Length = Str.size();
|
|
Op->StartLoc = S;
|
|
Op->EndLoc = S;
|
|
Op->IsPPC64 = IsPPC64;
|
|
return Op;
|
|
}
|
|
|
|
static std::unique_ptr<PPCOperand>
|
|
CreateTokenWithStringCopy(StringRef Str, SMLoc S, bool IsPPC64) {
|
|
// Allocate extra memory for the string and copy it.
|
|
// FIXME: This is incorrect, Operands are owned by unique_ptr with a default
|
|
// deleter which will destroy them by simply using "delete", not correctly
|
|
// calling operator delete on this extra memory after calling the dtor
|
|
// explicitly.
|
|
void *Mem = ::operator new(sizeof(PPCOperand) + Str.size());
|
|
std::unique_ptr<PPCOperand> Op(new (Mem) PPCOperand(Token));
|
|
Op->Tok.Data = reinterpret_cast<const char *>(Op.get() + 1);
|
|
Op->Tok.Length = Str.size();
|
|
std::memcpy(const_cast<char *>(Op->Tok.Data), Str.data(), Str.size());
|
|
Op->StartLoc = S;
|
|
Op->EndLoc = S;
|
|
Op->IsPPC64 = IsPPC64;
|
|
return Op;
|
|
}
|
|
|
|
static std::unique_ptr<PPCOperand> CreateImm(int64_t Val, SMLoc S, SMLoc E,
|
|
bool IsPPC64) {
|
|
auto Op = make_unique<PPCOperand>(Immediate);
|
|
Op->Imm.Val = Val;
|
|
Op->StartLoc = S;
|
|
Op->EndLoc = E;
|
|
Op->IsPPC64 = IsPPC64;
|
|
return Op;
|
|
}
|
|
|
|
static std::unique_ptr<PPCOperand> CreateExpr(const MCExpr *Val, SMLoc S,
|
|
SMLoc E, bool IsPPC64) {
|
|
auto Op = make_unique<PPCOperand>(Expression);
|
|
Op->Expr.Val = Val;
|
|
Op->Expr.CRVal = EvaluateCRExpr(Val);
|
|
Op->StartLoc = S;
|
|
Op->EndLoc = E;
|
|
Op->IsPPC64 = IsPPC64;
|
|
return Op;
|
|
}
|
|
|
|
static std::unique_ptr<PPCOperand>
|
|
CreateTLSReg(const MCSymbolRefExpr *Sym, SMLoc S, SMLoc E, bool IsPPC64) {
|
|
auto Op = make_unique<PPCOperand>(TLSRegister);
|
|
Op->TLSReg.Sym = Sym;
|
|
Op->StartLoc = S;
|
|
Op->EndLoc = E;
|
|
Op->IsPPC64 = IsPPC64;
|
|
return Op;
|
|
}
|
|
|
|
static std::unique_ptr<PPCOperand>
|
|
CreateContextImm(int64_t Val, SMLoc S, SMLoc E, bool IsPPC64) {
|
|
auto Op = make_unique<PPCOperand>(ContextImmediate);
|
|
Op->Imm.Val = Val;
|
|
Op->StartLoc = S;
|
|
Op->EndLoc = E;
|
|
Op->IsPPC64 = IsPPC64;
|
|
return Op;
|
|
}
|
|
|
|
static std::unique_ptr<PPCOperand>
|
|
CreateFromMCExpr(const MCExpr *Val, SMLoc S, SMLoc E, bool IsPPC64) {
|
|
if (const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Val))
|
|
return CreateImm(CE->getValue(), S, E, IsPPC64);
|
|
|
|
if (const MCSymbolRefExpr *SRE = dyn_cast<MCSymbolRefExpr>(Val))
|
|
if (SRE->getKind() == MCSymbolRefExpr::VK_PPC_TLS)
|
|
return CreateTLSReg(SRE, S, E, IsPPC64);
|
|
|
|
if (const PPCMCExpr *TE = dyn_cast<PPCMCExpr>(Val)) {
|
|
int64_t Res;
|
|
if (TE->evaluateAsConstant(Res))
|
|
return CreateContextImm(Res, S, E, IsPPC64);
|
|
}
|
|
|
|
return CreateExpr(Val, S, E, IsPPC64);
|
|
}
|
|
};
|
|
|
|
} // end anonymous namespace.
|
|
|
|
void PPCOperand::print(raw_ostream &OS) const {
|
|
switch (Kind) {
|
|
case Token:
|
|
OS << "'" << getToken() << "'";
|
|
break;
|
|
case Immediate:
|
|
case ContextImmediate:
|
|
OS << getImm();
|
|
break;
|
|
case Expression:
|
|
OS << *getExpr();
|
|
break;
|
|
case TLSRegister:
|
|
OS << *getTLSReg();
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
addNegOperand(MCInst &Inst, MCOperand &Op, MCContext &Ctx) {
|
|
if (Op.isImm()) {
|
|
Inst.addOperand(MCOperand::createImm(-Op.getImm()));
|
|
return;
|
|
}
|
|
const MCExpr *Expr = Op.getExpr();
|
|
if (const MCUnaryExpr *UnExpr = dyn_cast<MCUnaryExpr>(Expr)) {
|
|
if (UnExpr->getOpcode() == MCUnaryExpr::Minus) {
|
|
Inst.addOperand(MCOperand::createExpr(UnExpr->getSubExpr()));
|
|
return;
|
|
}
|
|
} else if (const MCBinaryExpr *BinExpr = dyn_cast<MCBinaryExpr>(Expr)) {
|
|
if (BinExpr->getOpcode() == MCBinaryExpr::Sub) {
|
|
const MCExpr *NE = MCBinaryExpr::createSub(BinExpr->getRHS(),
|
|
BinExpr->getLHS(), Ctx);
|
|
Inst.addOperand(MCOperand::createExpr(NE));
|
|
return;
|
|
}
|
|
}
|
|
Inst.addOperand(MCOperand::createExpr(MCUnaryExpr::createMinus(Expr, Ctx)));
|
|
}
|
|
|
|
void PPCAsmParser::ProcessInstruction(MCInst &Inst,
|
|
const OperandVector &Operands) {
|
|
int Opcode = Inst.getOpcode();
|
|
switch (Opcode) {
|
|
case PPC::DCBTx:
|
|
case PPC::DCBTT:
|
|
case PPC::DCBTSTx:
|
|
case PPC::DCBTSTT: {
|
|
MCInst TmpInst;
|
|
TmpInst.setOpcode((Opcode == PPC::DCBTx || Opcode == PPC::DCBTT) ?
|
|
PPC::DCBT : PPC::DCBTST);
|
|
TmpInst.addOperand(MCOperand::createImm(
|
|
(Opcode == PPC::DCBTx || Opcode == PPC::DCBTSTx) ? 0 : 16));
|
|
TmpInst.addOperand(Inst.getOperand(0));
|
|
TmpInst.addOperand(Inst.getOperand(1));
|
|
Inst = TmpInst;
|
|
break;
|
|
}
|
|
case PPC::DCBTCT:
|
|
case PPC::DCBTDS: {
|
|
MCInst TmpInst;
|
|
TmpInst.setOpcode(PPC::DCBT);
|
|
TmpInst.addOperand(Inst.getOperand(2));
|
|
TmpInst.addOperand(Inst.getOperand(0));
|
|
TmpInst.addOperand(Inst.getOperand(1));
|
|
Inst = TmpInst;
|
|
break;
|
|
}
|
|
case PPC::DCBTSTCT:
|
|
case PPC::DCBTSTDS: {
|
|
MCInst TmpInst;
|
|
TmpInst.setOpcode(PPC::DCBTST);
|
|
TmpInst.addOperand(Inst.getOperand(2));
|
|
TmpInst.addOperand(Inst.getOperand(0));
|
|
TmpInst.addOperand(Inst.getOperand(1));
|
|
Inst = TmpInst;
|
|
break;
|
|
}
|
|
case PPC::DCBFx:
|
|
case PPC::DCBFL:
|
|
case PPC::DCBFLP: {
|
|
int L = 0;
|
|
if (Opcode == PPC::DCBFL)
|
|
L = 1;
|
|
else if (Opcode == PPC::DCBFLP)
|
|
L = 3;
|
|
|
|
MCInst TmpInst;
|
|
TmpInst.setOpcode(PPC::DCBF);
|
|
TmpInst.addOperand(MCOperand::createImm(L));
|
|
TmpInst.addOperand(Inst.getOperand(0));
|
|
TmpInst.addOperand(Inst.getOperand(1));
|
|
Inst = TmpInst;
|
|
break;
|
|
}
|
|
case PPC::LAx: {
|
|
MCInst TmpInst;
|
|
TmpInst.setOpcode(PPC::LA);
|
|
TmpInst.addOperand(Inst.getOperand(0));
|
|
TmpInst.addOperand(Inst.getOperand(2));
|
|
TmpInst.addOperand(Inst.getOperand(1));
|
|
Inst = TmpInst;
|
|
break;
|
|
}
|
|
case PPC::SUBI: {
|
|
MCInst TmpInst;
|
|
TmpInst.setOpcode(PPC::ADDI);
|
|
TmpInst.addOperand(Inst.getOperand(0));
|
|
TmpInst.addOperand(Inst.getOperand(1));
|
|
addNegOperand(TmpInst, Inst.getOperand(2), getContext());
|
|
Inst = TmpInst;
|
|
break;
|
|
}
|
|
case PPC::SUBIS: {
|
|
MCInst TmpInst;
|
|
TmpInst.setOpcode(PPC::ADDIS);
|
|
TmpInst.addOperand(Inst.getOperand(0));
|
|
TmpInst.addOperand(Inst.getOperand(1));
|
|
addNegOperand(TmpInst, Inst.getOperand(2), getContext());
|
|
Inst = TmpInst;
|
|
break;
|
|
}
|
|
case PPC::SUBIC: {
|
|
MCInst TmpInst;
|
|
TmpInst.setOpcode(PPC::ADDIC);
|
|
TmpInst.addOperand(Inst.getOperand(0));
|
|
TmpInst.addOperand(Inst.getOperand(1));
|
|
addNegOperand(TmpInst, Inst.getOperand(2), getContext());
|
|
Inst = TmpInst;
|
|
break;
|
|
}
|
|
case PPC::SUBICo: {
|
|
MCInst TmpInst;
|
|
TmpInst.setOpcode(PPC::ADDICo);
|
|
TmpInst.addOperand(Inst.getOperand(0));
|
|
TmpInst.addOperand(Inst.getOperand(1));
|
|
addNegOperand(TmpInst, Inst.getOperand(2), getContext());
|
|
Inst = TmpInst;
|
|
break;
|
|
}
|
|
case PPC::EXTLWI:
|
|
case PPC::EXTLWIo: {
|
|
MCInst TmpInst;
|
|
int64_t N = Inst.getOperand(2).getImm();
|
|
int64_t B = Inst.getOperand(3).getImm();
|
|
TmpInst.setOpcode(Opcode == PPC::EXTLWI? PPC::RLWINM : PPC::RLWINMo);
|
|
TmpInst.addOperand(Inst.getOperand(0));
|
|
TmpInst.addOperand(Inst.getOperand(1));
|
|
TmpInst.addOperand(MCOperand::createImm(B));
|
|
TmpInst.addOperand(MCOperand::createImm(0));
|
|
TmpInst.addOperand(MCOperand::createImm(N - 1));
|
|
Inst = TmpInst;
|
|
break;
|
|
}
|
|
case PPC::EXTRWI:
|
|
case PPC::EXTRWIo: {
|
|
MCInst TmpInst;
|
|
int64_t N = Inst.getOperand(2).getImm();
|
|
int64_t B = Inst.getOperand(3).getImm();
|
|
TmpInst.setOpcode(Opcode == PPC::EXTRWI? PPC::RLWINM : PPC::RLWINMo);
|
|
TmpInst.addOperand(Inst.getOperand(0));
|
|
TmpInst.addOperand(Inst.getOperand(1));
|
|
TmpInst.addOperand(MCOperand::createImm(B + N));
|
|
TmpInst.addOperand(MCOperand::createImm(32 - N));
|
|
TmpInst.addOperand(MCOperand::createImm(31));
|
|
Inst = TmpInst;
|
|
break;
|
|
}
|
|
case PPC::INSLWI:
|
|
case PPC::INSLWIo: {
|
|
MCInst TmpInst;
|
|
int64_t N = Inst.getOperand(2).getImm();
|
|
int64_t B = Inst.getOperand(3).getImm();
|
|
TmpInst.setOpcode(Opcode == PPC::INSLWI? PPC::RLWIMI : PPC::RLWIMIo);
|
|
TmpInst.addOperand(Inst.getOperand(0));
|
|
TmpInst.addOperand(Inst.getOperand(0));
|
|
TmpInst.addOperand(Inst.getOperand(1));
|
|
TmpInst.addOperand(MCOperand::createImm(32 - B));
|
|
TmpInst.addOperand(MCOperand::createImm(B));
|
|
TmpInst.addOperand(MCOperand::createImm((B + N) - 1));
|
|
Inst = TmpInst;
|
|
break;
|
|
}
|
|
case PPC::INSRWI:
|
|
case PPC::INSRWIo: {
|
|
MCInst TmpInst;
|
|
int64_t N = Inst.getOperand(2).getImm();
|
|
int64_t B = Inst.getOperand(3).getImm();
|
|
TmpInst.setOpcode(Opcode == PPC::INSRWI? PPC::RLWIMI : PPC::RLWIMIo);
|
|
TmpInst.addOperand(Inst.getOperand(0));
|
|
TmpInst.addOperand(Inst.getOperand(0));
|
|
TmpInst.addOperand(Inst.getOperand(1));
|
|
TmpInst.addOperand(MCOperand::createImm(32 - (B + N)));
|
|
TmpInst.addOperand(MCOperand::createImm(B));
|
|
TmpInst.addOperand(MCOperand::createImm((B + N) - 1));
|
|
Inst = TmpInst;
|
|
break;
|
|
}
|
|
case PPC::ROTRWI:
|
|
case PPC::ROTRWIo: {
|
|
MCInst TmpInst;
|
|
int64_t N = Inst.getOperand(2).getImm();
|
|
TmpInst.setOpcode(Opcode == PPC::ROTRWI? PPC::RLWINM : PPC::RLWINMo);
|
|
TmpInst.addOperand(Inst.getOperand(0));
|
|
TmpInst.addOperand(Inst.getOperand(1));
|
|
TmpInst.addOperand(MCOperand::createImm(32 - N));
|
|
TmpInst.addOperand(MCOperand::createImm(0));
|
|
TmpInst.addOperand(MCOperand::createImm(31));
|
|
Inst = TmpInst;
|
|
break;
|
|
}
|
|
case PPC::SLWI:
|
|
case PPC::SLWIo: {
|
|
MCInst TmpInst;
|
|
int64_t N = Inst.getOperand(2).getImm();
|
|
TmpInst.setOpcode(Opcode == PPC::SLWI? PPC::RLWINM : PPC::RLWINMo);
|
|
TmpInst.addOperand(Inst.getOperand(0));
|
|
TmpInst.addOperand(Inst.getOperand(1));
|
|
TmpInst.addOperand(MCOperand::createImm(N));
|
|
TmpInst.addOperand(MCOperand::createImm(0));
|
|
TmpInst.addOperand(MCOperand::createImm(31 - N));
|
|
Inst = TmpInst;
|
|
break;
|
|
}
|
|
case PPC::SRWI:
|
|
case PPC::SRWIo: {
|
|
MCInst TmpInst;
|
|
int64_t N = Inst.getOperand(2).getImm();
|
|
TmpInst.setOpcode(Opcode == PPC::SRWI? PPC::RLWINM : PPC::RLWINMo);
|
|
TmpInst.addOperand(Inst.getOperand(0));
|
|
TmpInst.addOperand(Inst.getOperand(1));
|
|
TmpInst.addOperand(MCOperand::createImm(32 - N));
|
|
TmpInst.addOperand(MCOperand::createImm(N));
|
|
TmpInst.addOperand(MCOperand::createImm(31));
|
|
Inst = TmpInst;
|
|
break;
|
|
}
|
|
case PPC::CLRRWI:
|
|
case PPC::CLRRWIo: {
|
|
MCInst TmpInst;
|
|
int64_t N = Inst.getOperand(2).getImm();
|
|
TmpInst.setOpcode(Opcode == PPC::CLRRWI? PPC::RLWINM : PPC::RLWINMo);
|
|
TmpInst.addOperand(Inst.getOperand(0));
|
|
TmpInst.addOperand(Inst.getOperand(1));
|
|
TmpInst.addOperand(MCOperand::createImm(0));
|
|
TmpInst.addOperand(MCOperand::createImm(0));
|
|
TmpInst.addOperand(MCOperand::createImm(31 - N));
|
|
Inst = TmpInst;
|
|
break;
|
|
}
|
|
case PPC::CLRLSLWI:
|
|
case PPC::CLRLSLWIo: {
|
|
MCInst TmpInst;
|
|
int64_t B = Inst.getOperand(2).getImm();
|
|
int64_t N = Inst.getOperand(3).getImm();
|
|
TmpInst.setOpcode(Opcode == PPC::CLRLSLWI? PPC::RLWINM : PPC::RLWINMo);
|
|
TmpInst.addOperand(Inst.getOperand(0));
|
|
TmpInst.addOperand(Inst.getOperand(1));
|
|
TmpInst.addOperand(MCOperand::createImm(N));
|
|
TmpInst.addOperand(MCOperand::createImm(B - N));
|
|
TmpInst.addOperand(MCOperand::createImm(31 - N));
|
|
Inst = TmpInst;
|
|
break;
|
|
}
|
|
case PPC::EXTLDI:
|
|
case PPC::EXTLDIo: {
|
|
MCInst TmpInst;
|
|
int64_t N = Inst.getOperand(2).getImm();
|
|
int64_t B = Inst.getOperand(3).getImm();
|
|
TmpInst.setOpcode(Opcode == PPC::EXTLDI? PPC::RLDICR : PPC::RLDICRo);
|
|
TmpInst.addOperand(Inst.getOperand(0));
|
|
TmpInst.addOperand(Inst.getOperand(1));
|
|
TmpInst.addOperand(MCOperand::createImm(B));
|
|
TmpInst.addOperand(MCOperand::createImm(N - 1));
|
|
Inst = TmpInst;
|
|
break;
|
|
}
|
|
case PPC::EXTRDI:
|
|
case PPC::EXTRDIo: {
|
|
MCInst TmpInst;
|
|
int64_t N = Inst.getOperand(2).getImm();
|
|
int64_t B = Inst.getOperand(3).getImm();
|
|
TmpInst.setOpcode(Opcode == PPC::EXTRDI? PPC::RLDICL : PPC::RLDICLo);
|
|
TmpInst.addOperand(Inst.getOperand(0));
|
|
TmpInst.addOperand(Inst.getOperand(1));
|
|
TmpInst.addOperand(MCOperand::createImm(B + N));
|
|
TmpInst.addOperand(MCOperand::createImm(64 - N));
|
|
Inst = TmpInst;
|
|
break;
|
|
}
|
|
case PPC::INSRDI:
|
|
case PPC::INSRDIo: {
|
|
MCInst TmpInst;
|
|
int64_t N = Inst.getOperand(2).getImm();
|
|
int64_t B = Inst.getOperand(3).getImm();
|
|
TmpInst.setOpcode(Opcode == PPC::INSRDI? PPC::RLDIMI : PPC::RLDIMIo);
|
|
TmpInst.addOperand(Inst.getOperand(0));
|
|
TmpInst.addOperand(Inst.getOperand(0));
|
|
TmpInst.addOperand(Inst.getOperand(1));
|
|
TmpInst.addOperand(MCOperand::createImm(64 - (B + N)));
|
|
TmpInst.addOperand(MCOperand::createImm(B));
|
|
Inst = TmpInst;
|
|
break;
|
|
}
|
|
case PPC::ROTRDI:
|
|
case PPC::ROTRDIo: {
|
|
MCInst TmpInst;
|
|
int64_t N = Inst.getOperand(2).getImm();
|
|
TmpInst.setOpcode(Opcode == PPC::ROTRDI? PPC::RLDICL : PPC::RLDICLo);
|
|
TmpInst.addOperand(Inst.getOperand(0));
|
|
TmpInst.addOperand(Inst.getOperand(1));
|
|
TmpInst.addOperand(MCOperand::createImm(64 - N));
|
|
TmpInst.addOperand(MCOperand::createImm(0));
|
|
Inst = TmpInst;
|
|
break;
|
|
}
|
|
case PPC::SLDI:
|
|
case PPC::SLDIo: {
|
|
MCInst TmpInst;
|
|
int64_t N = Inst.getOperand(2).getImm();
|
|
TmpInst.setOpcode(Opcode == PPC::SLDI? PPC::RLDICR : PPC::RLDICRo);
|
|
TmpInst.addOperand(Inst.getOperand(0));
|
|
TmpInst.addOperand(Inst.getOperand(1));
|
|
TmpInst.addOperand(MCOperand::createImm(N));
|
|
TmpInst.addOperand(MCOperand::createImm(63 - N));
|
|
Inst = TmpInst;
|
|
break;
|
|
}
|
|
case PPC::SUBPCIS: {
|
|
MCInst TmpInst;
|
|
int64_t N = Inst.getOperand(1).getImm();
|
|
TmpInst.setOpcode(PPC::ADDPCIS);
|
|
TmpInst.addOperand(Inst.getOperand(0));
|
|
TmpInst.addOperand(MCOperand::createImm(-N));
|
|
Inst = TmpInst;
|
|
break;
|
|
}
|
|
case PPC::SRDI:
|
|
case PPC::SRDIo: {
|
|
MCInst TmpInst;
|
|
int64_t N = Inst.getOperand(2).getImm();
|
|
TmpInst.setOpcode(Opcode == PPC::SRDI? PPC::RLDICL : PPC::RLDICLo);
|
|
TmpInst.addOperand(Inst.getOperand(0));
|
|
TmpInst.addOperand(Inst.getOperand(1));
|
|
TmpInst.addOperand(MCOperand::createImm(64 - N));
|
|
TmpInst.addOperand(MCOperand::createImm(N));
|
|
Inst = TmpInst;
|
|
break;
|
|
}
|
|
case PPC::CLRRDI:
|
|
case PPC::CLRRDIo: {
|
|
MCInst TmpInst;
|
|
int64_t N = Inst.getOperand(2).getImm();
|
|
TmpInst.setOpcode(Opcode == PPC::CLRRDI? PPC::RLDICR : PPC::RLDICRo);
|
|
TmpInst.addOperand(Inst.getOperand(0));
|
|
TmpInst.addOperand(Inst.getOperand(1));
|
|
TmpInst.addOperand(MCOperand::createImm(0));
|
|
TmpInst.addOperand(MCOperand::createImm(63 - N));
|
|
Inst = TmpInst;
|
|
break;
|
|
}
|
|
case PPC::CLRLSLDI:
|
|
case PPC::CLRLSLDIo: {
|
|
MCInst TmpInst;
|
|
int64_t B = Inst.getOperand(2).getImm();
|
|
int64_t N = Inst.getOperand(3).getImm();
|
|
TmpInst.setOpcode(Opcode == PPC::CLRLSLDI? PPC::RLDIC : PPC::RLDICo);
|
|
TmpInst.addOperand(Inst.getOperand(0));
|
|
TmpInst.addOperand(Inst.getOperand(1));
|
|
TmpInst.addOperand(MCOperand::createImm(N));
|
|
TmpInst.addOperand(MCOperand::createImm(B - N));
|
|
Inst = TmpInst;
|
|
break;
|
|
}
|
|
case PPC::RLWINMbm:
|
|
case PPC::RLWINMobm: {
|
|
unsigned MB, ME;
|
|
int64_t BM = Inst.getOperand(3).getImm();
|
|
if (!isRunOfOnes(BM, MB, ME))
|
|
break;
|
|
|
|
MCInst TmpInst;
|
|
TmpInst.setOpcode(Opcode == PPC::RLWINMbm ? PPC::RLWINM : PPC::RLWINMo);
|
|
TmpInst.addOperand(Inst.getOperand(0));
|
|
TmpInst.addOperand(Inst.getOperand(1));
|
|
TmpInst.addOperand(Inst.getOperand(2));
|
|
TmpInst.addOperand(MCOperand::createImm(MB));
|
|
TmpInst.addOperand(MCOperand::createImm(ME));
|
|
Inst = TmpInst;
|
|
break;
|
|
}
|
|
case PPC::RLWIMIbm:
|
|
case PPC::RLWIMIobm: {
|
|
unsigned MB, ME;
|
|
int64_t BM = Inst.getOperand(3).getImm();
|
|
if (!isRunOfOnes(BM, MB, ME))
|
|
break;
|
|
|
|
MCInst TmpInst;
|
|
TmpInst.setOpcode(Opcode == PPC::RLWIMIbm ? PPC::RLWIMI : PPC::RLWIMIo);
|
|
TmpInst.addOperand(Inst.getOperand(0));
|
|
TmpInst.addOperand(Inst.getOperand(0)); // The tied operand.
|
|
TmpInst.addOperand(Inst.getOperand(1));
|
|
TmpInst.addOperand(Inst.getOperand(2));
|
|
TmpInst.addOperand(MCOperand::createImm(MB));
|
|
TmpInst.addOperand(MCOperand::createImm(ME));
|
|
Inst = TmpInst;
|
|
break;
|
|
}
|
|
case PPC::RLWNMbm:
|
|
case PPC::RLWNMobm: {
|
|
unsigned MB, ME;
|
|
int64_t BM = Inst.getOperand(3).getImm();
|
|
if (!isRunOfOnes(BM, MB, ME))
|
|
break;
|
|
|
|
MCInst TmpInst;
|
|
TmpInst.setOpcode(Opcode == PPC::RLWNMbm ? PPC::RLWNM : PPC::RLWNMo);
|
|
TmpInst.addOperand(Inst.getOperand(0));
|
|
TmpInst.addOperand(Inst.getOperand(1));
|
|
TmpInst.addOperand(Inst.getOperand(2));
|
|
TmpInst.addOperand(MCOperand::createImm(MB));
|
|
TmpInst.addOperand(MCOperand::createImm(ME));
|
|
Inst = TmpInst;
|
|
break;
|
|
}
|
|
case PPC::MFTB: {
|
|
if (getSTI().getFeatureBits()[PPC::FeatureMFTB]) {
|
|
assert(Inst.getNumOperands() == 2 && "Expecting two operands");
|
|
Inst.setOpcode(PPC::MFSPR);
|
|
}
|
|
break;
|
|
}
|
|
case PPC::CP_COPYx:
|
|
case PPC::CP_COPY_FIRST: {
|
|
MCInst TmpInst;
|
|
TmpInst.setOpcode(PPC::CP_COPY);
|
|
TmpInst.addOperand(Inst.getOperand(0));
|
|
TmpInst.addOperand(Inst.getOperand(1));
|
|
TmpInst.addOperand(MCOperand::createImm(Opcode == PPC::CP_COPYx ? 0 : 1));
|
|
|
|
Inst = TmpInst;
|
|
break;
|
|
}
|
|
case PPC::CP_PASTEx :
|
|
case PPC::CP_PASTE_LAST: {
|
|
MCInst TmpInst;
|
|
TmpInst.setOpcode(Opcode == PPC::CP_PASTEx ?
|
|
PPC::CP_PASTE : PPC::CP_PASTEo);
|
|
TmpInst.addOperand(Inst.getOperand(0));
|
|
TmpInst.addOperand(Inst.getOperand(1));
|
|
TmpInst.addOperand(MCOperand::createImm(Opcode == PPC::CP_PASTEx ? 0 : 1));
|
|
|
|
Inst = TmpInst;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
static std::string PPCMnemonicSpellCheck(StringRef S, uint64_t FBS,
|
|
unsigned VariantID = 0);
|
|
|
|
bool PPCAsmParser::MatchAndEmitInstruction(SMLoc IDLoc, unsigned &Opcode,
|
|
OperandVector &Operands,
|
|
MCStreamer &Out, uint64_t &ErrorInfo,
|
|
bool MatchingInlineAsm) {
|
|
MCInst Inst;
|
|
|
|
switch (MatchInstructionImpl(Operands, Inst, ErrorInfo, MatchingInlineAsm)) {
|
|
case Match_Success:
|
|
// Post-process instructions (typically extended mnemonics)
|
|
ProcessInstruction(Inst, Operands);
|
|
Inst.setLoc(IDLoc);
|
|
Out.EmitInstruction(Inst, getSTI());
|
|
return false;
|
|
case Match_MissingFeature:
|
|
return Error(IDLoc, "instruction use requires an option to be enabled");
|
|
case Match_MnemonicFail: {
|
|
uint64_t FBS = ComputeAvailableFeatures(getSTI().getFeatureBits());
|
|
std::string Suggestion = PPCMnemonicSpellCheck(
|
|
((PPCOperand &)*Operands[0]).getToken(), FBS);
|
|
return Error(IDLoc, "invalid instruction" + Suggestion,
|
|
((PPCOperand &)*Operands[0]).getLocRange());
|
|
}
|
|
case Match_InvalidOperand: {
|
|
SMLoc ErrorLoc = IDLoc;
|
|
if (ErrorInfo != ~0ULL) {
|
|
if (ErrorInfo >= Operands.size())
|
|
return Error(IDLoc, "too few operands for instruction");
|
|
|
|
ErrorLoc = ((PPCOperand &)*Operands[ErrorInfo]).getStartLoc();
|
|
if (ErrorLoc == SMLoc()) ErrorLoc = IDLoc;
|
|
}
|
|
|
|
return Error(ErrorLoc, "invalid operand for instruction");
|
|
}
|
|
}
|
|
|
|
llvm_unreachable("Implement any new match types added!");
|
|
}
|
|
|
|
bool PPCAsmParser::MatchRegisterName(unsigned &RegNo, int64_t &IntVal) {
|
|
if (getParser().getTok().is(AsmToken::Identifier)) {
|
|
StringRef Name = getParser().getTok().getString();
|
|
if (Name.equals_lower("lr")) {
|
|
RegNo = isPPC64()? PPC::LR8 : PPC::LR;
|
|
IntVal = 8;
|
|
} else if (Name.equals_lower("ctr")) {
|
|
RegNo = isPPC64()? PPC::CTR8 : PPC::CTR;
|
|
IntVal = 9;
|
|
} else if (Name.equals_lower("vrsave")) {
|
|
RegNo = PPC::VRSAVE;
|
|
IntVal = 256;
|
|
} else if (Name.startswith_lower("r") &&
|
|
!Name.substr(1).getAsInteger(10, IntVal) && IntVal < 32) {
|
|
RegNo = isPPC64()? XRegs[IntVal] : RRegs[IntVal];
|
|
} else if (Name.startswith_lower("f") &&
|
|
!Name.substr(1).getAsInteger(10, IntVal) && IntVal < 32) {
|
|
RegNo = FRegs[IntVal];
|
|
} else if (Name.startswith_lower("vs") &&
|
|
!Name.substr(2).getAsInteger(10, IntVal) && IntVal < 64) {
|
|
RegNo = VSRegs[IntVal];
|
|
} else if (Name.startswith_lower("v") &&
|
|
!Name.substr(1).getAsInteger(10, IntVal) && IntVal < 32) {
|
|
RegNo = VRegs[IntVal];
|
|
} else if (Name.startswith_lower("q") &&
|
|
!Name.substr(1).getAsInteger(10, IntVal) && IntVal < 32) {
|
|
RegNo = QFRegs[IntVal];
|
|
} else if (Name.startswith_lower("cr") &&
|
|
!Name.substr(2).getAsInteger(10, IntVal) && IntVal < 8) {
|
|
RegNo = CRRegs[IntVal];
|
|
} else
|
|
return true;
|
|
getParser().Lex();
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool PPCAsmParser::
|
|
ParseRegister(unsigned &RegNo, SMLoc &StartLoc, SMLoc &EndLoc) {
|
|
const AsmToken &Tok = getParser().getTok();
|
|
StartLoc = Tok.getLoc();
|
|
EndLoc = Tok.getEndLoc();
|
|
RegNo = 0;
|
|
int64_t IntVal;
|
|
if (MatchRegisterName(RegNo, IntVal))
|
|
return TokError("invalid register name");
|
|
return false;
|
|
}
|
|
|
|
/// Extract \code @l/@ha \endcode modifier from expression. Recursively scan
|
|
/// the expression and check for VK_PPC_LO/HI/HA
|
|
/// symbol variants. If all symbols with modifier use the same
|
|
/// variant, return the corresponding PPCMCExpr::VariantKind,
|
|
/// and a modified expression using the default symbol variant.
|
|
/// Otherwise, return NULL.
|
|
const MCExpr *PPCAsmParser::
|
|
ExtractModifierFromExpr(const MCExpr *E,
|
|
PPCMCExpr::VariantKind &Variant) {
|
|
MCContext &Context = getParser().getContext();
|
|
Variant = PPCMCExpr::VK_PPC_None;
|
|
|
|
switch (E->getKind()) {
|
|
case MCExpr::Target:
|
|
case MCExpr::Constant:
|
|
return nullptr;
|
|
|
|
case MCExpr::SymbolRef: {
|
|
const MCSymbolRefExpr *SRE = cast<MCSymbolRefExpr>(E);
|
|
|
|
switch (SRE->getKind()) {
|
|
case MCSymbolRefExpr::VK_PPC_LO:
|
|
Variant = PPCMCExpr::VK_PPC_LO;
|
|
break;
|
|
case MCSymbolRefExpr::VK_PPC_HI:
|
|
Variant = PPCMCExpr::VK_PPC_HI;
|
|
break;
|
|
case MCSymbolRefExpr::VK_PPC_HA:
|
|
Variant = PPCMCExpr::VK_PPC_HA;
|
|
break;
|
|
case MCSymbolRefExpr::VK_PPC_HIGH:
|
|
Variant = PPCMCExpr::VK_PPC_HIGH;
|
|
break;
|
|
case MCSymbolRefExpr::VK_PPC_HIGHA:
|
|
Variant = PPCMCExpr::VK_PPC_HIGHA;
|
|
break;
|
|
case MCSymbolRefExpr::VK_PPC_HIGHER:
|
|
Variant = PPCMCExpr::VK_PPC_HIGHER;
|
|
break;
|
|
case MCSymbolRefExpr::VK_PPC_HIGHERA:
|
|
Variant = PPCMCExpr::VK_PPC_HIGHERA;
|
|
break;
|
|
case MCSymbolRefExpr::VK_PPC_HIGHEST:
|
|
Variant = PPCMCExpr::VK_PPC_HIGHEST;
|
|
break;
|
|
case MCSymbolRefExpr::VK_PPC_HIGHESTA:
|
|
Variant = PPCMCExpr::VK_PPC_HIGHESTA;
|
|
break;
|
|
default:
|
|
return nullptr;
|
|
}
|
|
|
|
return MCSymbolRefExpr::create(&SRE->getSymbol(), Context);
|
|
}
|
|
|
|
case MCExpr::Unary: {
|
|
const MCUnaryExpr *UE = cast<MCUnaryExpr>(E);
|
|
const MCExpr *Sub = ExtractModifierFromExpr(UE->getSubExpr(), Variant);
|
|
if (!Sub)
|
|
return nullptr;
|
|
return MCUnaryExpr::create(UE->getOpcode(), Sub, Context);
|
|
}
|
|
|
|
case MCExpr::Binary: {
|
|
const MCBinaryExpr *BE = cast<MCBinaryExpr>(E);
|
|
PPCMCExpr::VariantKind LHSVariant, RHSVariant;
|
|
const MCExpr *LHS = ExtractModifierFromExpr(BE->getLHS(), LHSVariant);
|
|
const MCExpr *RHS = ExtractModifierFromExpr(BE->getRHS(), RHSVariant);
|
|
|
|
if (!LHS && !RHS)
|
|
return nullptr;
|
|
|
|
if (!LHS) LHS = BE->getLHS();
|
|
if (!RHS) RHS = BE->getRHS();
|
|
|
|
if (LHSVariant == PPCMCExpr::VK_PPC_None)
|
|
Variant = RHSVariant;
|
|
else if (RHSVariant == PPCMCExpr::VK_PPC_None)
|
|
Variant = LHSVariant;
|
|
else if (LHSVariant == RHSVariant)
|
|
Variant = LHSVariant;
|
|
else
|
|
return nullptr;
|
|
|
|
return MCBinaryExpr::create(BE->getOpcode(), LHS, RHS, Context);
|
|
}
|
|
}
|
|
|
|
llvm_unreachable("Invalid expression kind!");
|
|
}
|
|
|
|
/// Find all VK_TLSGD/VK_TLSLD symbol references in expression and replace
|
|
/// them by VK_PPC_TLSGD/VK_PPC_TLSLD. This is necessary to avoid having
|
|
/// _GLOBAL_OFFSET_TABLE_ created via ELFObjectWriter::RelocNeedsGOT.
|
|
/// FIXME: This is a hack.
|
|
const MCExpr *PPCAsmParser::
|
|
FixupVariantKind(const MCExpr *E) {
|
|
MCContext &Context = getParser().getContext();
|
|
|
|
switch (E->getKind()) {
|
|
case MCExpr::Target:
|
|
case MCExpr::Constant:
|
|
return E;
|
|
|
|
case MCExpr::SymbolRef: {
|
|
const MCSymbolRefExpr *SRE = cast<MCSymbolRefExpr>(E);
|
|
MCSymbolRefExpr::VariantKind Variant = MCSymbolRefExpr::VK_None;
|
|
|
|
switch (SRE->getKind()) {
|
|
case MCSymbolRefExpr::VK_TLSGD:
|
|
Variant = MCSymbolRefExpr::VK_PPC_TLSGD;
|
|
break;
|
|
case MCSymbolRefExpr::VK_TLSLD:
|
|
Variant = MCSymbolRefExpr::VK_PPC_TLSLD;
|
|
break;
|
|
default:
|
|
return E;
|
|
}
|
|
return MCSymbolRefExpr::create(&SRE->getSymbol(), Variant, Context);
|
|
}
|
|
|
|
case MCExpr::Unary: {
|
|
const MCUnaryExpr *UE = cast<MCUnaryExpr>(E);
|
|
const MCExpr *Sub = FixupVariantKind(UE->getSubExpr());
|
|
if (Sub == UE->getSubExpr())
|
|
return E;
|
|
return MCUnaryExpr::create(UE->getOpcode(), Sub, Context);
|
|
}
|
|
|
|
case MCExpr::Binary: {
|
|
const MCBinaryExpr *BE = cast<MCBinaryExpr>(E);
|
|
const MCExpr *LHS = FixupVariantKind(BE->getLHS());
|
|
const MCExpr *RHS = FixupVariantKind(BE->getRHS());
|
|
if (LHS == BE->getLHS() && RHS == BE->getRHS())
|
|
return E;
|
|
return MCBinaryExpr::create(BE->getOpcode(), LHS, RHS, Context);
|
|
}
|
|
}
|
|
|
|
llvm_unreachable("Invalid expression kind!");
|
|
}
|
|
|
|
/// ParseExpression. This differs from the default "parseExpression" in that
|
|
/// it handles modifiers.
|
|
bool PPCAsmParser::
|
|
ParseExpression(const MCExpr *&EVal) {
|
|
|
|
if (isDarwin())
|
|
return ParseDarwinExpression(EVal);
|
|
|
|
// (ELF Platforms)
|
|
// Handle \code @l/@ha \endcode
|
|
if (getParser().parseExpression(EVal))
|
|
return true;
|
|
|
|
EVal = FixupVariantKind(EVal);
|
|
|
|
PPCMCExpr::VariantKind Variant;
|
|
const MCExpr *E = ExtractModifierFromExpr(EVal, Variant);
|
|
if (E)
|
|
EVal = PPCMCExpr::create(Variant, E, false, getParser().getContext());
|
|
|
|
return false;
|
|
}
|
|
|
|
/// ParseDarwinExpression. (MachO Platforms)
|
|
/// This differs from the default "parseExpression" in that it handles detection
|
|
/// of the \code hi16(), ha16() and lo16() \endcode modifiers. At present,
|
|
/// parseExpression() doesn't recognise the modifiers when in the Darwin/MachO
|
|
/// syntax form so it is done here. TODO: Determine if there is merit in
|
|
/// arranging for this to be done at a higher level.
|
|
bool PPCAsmParser::
|
|
ParseDarwinExpression(const MCExpr *&EVal) {
|
|
MCAsmParser &Parser = getParser();
|
|
PPCMCExpr::VariantKind Variant = PPCMCExpr::VK_PPC_None;
|
|
switch (getLexer().getKind()) {
|
|
default:
|
|
break;
|
|
case AsmToken::Identifier:
|
|
// Compiler-generated Darwin identifiers begin with L,l,_ or "; thus
|
|
// something starting with any other char should be part of the
|
|
// asm syntax. If handwritten asm includes an identifier like lo16,
|
|
// then all bets are off - but no-one would do that, right?
|
|
StringRef poss = Parser.getTok().getString();
|
|
if (poss.equals_lower("lo16")) {
|
|
Variant = PPCMCExpr::VK_PPC_LO;
|
|
} else if (poss.equals_lower("hi16")) {
|
|
Variant = PPCMCExpr::VK_PPC_HI;
|
|
} else if (poss.equals_lower("ha16")) {
|
|
Variant = PPCMCExpr::VK_PPC_HA;
|
|
}
|
|
if (Variant != PPCMCExpr::VK_PPC_None) {
|
|
Parser.Lex(); // Eat the xx16
|
|
if (getLexer().isNot(AsmToken::LParen))
|
|
return Error(Parser.getTok().getLoc(), "expected '('");
|
|
Parser.Lex(); // Eat the '('
|
|
}
|
|
break;
|
|
}
|
|
|
|
if (getParser().parseExpression(EVal))
|
|
return true;
|
|
|
|
if (Variant != PPCMCExpr::VK_PPC_None) {
|
|
if (getLexer().isNot(AsmToken::RParen))
|
|
return Error(Parser.getTok().getLoc(), "expected ')'");
|
|
Parser.Lex(); // Eat the ')'
|
|
EVal = PPCMCExpr::create(Variant, EVal, false, getParser().getContext());
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/// ParseOperand
|
|
/// This handles registers in the form 'NN', '%rNN' for ELF platforms and
|
|
/// rNN for MachO.
|
|
bool PPCAsmParser::ParseOperand(OperandVector &Operands) {
|
|
MCAsmParser &Parser = getParser();
|
|
SMLoc S = Parser.getTok().getLoc();
|
|
SMLoc E = SMLoc::getFromPointer(Parser.getTok().getLoc().getPointer() - 1);
|
|
const MCExpr *EVal;
|
|
|
|
// Attempt to parse the next token as an immediate
|
|
switch (getLexer().getKind()) {
|
|
// Special handling for register names. These are interpreted
|
|
// as immediates corresponding to the register number.
|
|
case AsmToken::Percent:
|
|
Parser.Lex(); // Eat the '%'.
|
|
unsigned RegNo;
|
|
int64_t IntVal;
|
|
if (MatchRegisterName(RegNo, IntVal))
|
|
return Error(S, "invalid register name");
|
|
|
|
Operands.push_back(PPCOperand::CreateImm(IntVal, S, E, isPPC64()));
|
|
return false;
|
|
|
|
case AsmToken::Identifier:
|
|
case AsmToken::LParen:
|
|
case AsmToken::Plus:
|
|
case AsmToken::Minus:
|
|
case AsmToken::Integer:
|
|
case AsmToken::Dot:
|
|
case AsmToken::Dollar:
|
|
case AsmToken::Exclaim:
|
|
case AsmToken::Tilde:
|
|
// Note that non-register-name identifiers from the compiler will begin
|
|
// with '_', 'L'/'l' or '"'. Of course, handwritten asm could include
|
|
// identifiers like r31foo - so we fall through in the event that parsing
|
|
// a register name fails.
|
|
if (isDarwin()) {
|
|
unsigned RegNo;
|
|
int64_t IntVal;
|
|
if (!MatchRegisterName(RegNo, IntVal)) {
|
|
Operands.push_back(PPCOperand::CreateImm(IntVal, S, E, isPPC64()));
|
|
return false;
|
|
}
|
|
}
|
|
// All other expressions
|
|
|
|
if (!ParseExpression(EVal))
|
|
break;
|
|
// Fall-through
|
|
LLVM_FALLTHROUGH;
|
|
default:
|
|
return Error(S, "unknown operand");
|
|
}
|
|
|
|
// Push the parsed operand into the list of operands
|
|
Operands.push_back(PPCOperand::CreateFromMCExpr(EVal, S, E, isPPC64()));
|
|
|
|
// Check whether this is a TLS call expression
|
|
bool TLSCall = false;
|
|
if (const MCSymbolRefExpr *Ref = dyn_cast<MCSymbolRefExpr>(EVal))
|
|
TLSCall = Ref->getSymbol().getName() == "__tls_get_addr";
|
|
|
|
if (TLSCall && getLexer().is(AsmToken::LParen)) {
|
|
const MCExpr *TLSSym;
|
|
|
|
Parser.Lex(); // Eat the '('.
|
|
S = Parser.getTok().getLoc();
|
|
if (ParseExpression(TLSSym))
|
|
return Error(S, "invalid TLS call expression");
|
|
if (getLexer().isNot(AsmToken::RParen))
|
|
return Error(Parser.getTok().getLoc(), "missing ')'");
|
|
E = Parser.getTok().getLoc();
|
|
Parser.Lex(); // Eat the ')'.
|
|
|
|
Operands.push_back(PPCOperand::CreateFromMCExpr(TLSSym, S, E, isPPC64()));
|
|
}
|
|
|
|
// Otherwise, check for D-form memory operands
|
|
if (!TLSCall && getLexer().is(AsmToken::LParen)) {
|
|
Parser.Lex(); // Eat the '('.
|
|
S = Parser.getTok().getLoc();
|
|
|
|
int64_t IntVal;
|
|
switch (getLexer().getKind()) {
|
|
case AsmToken::Percent:
|
|
Parser.Lex(); // Eat the '%'.
|
|
unsigned RegNo;
|
|
if (MatchRegisterName(RegNo, IntVal))
|
|
return Error(S, "invalid register name");
|
|
break;
|
|
|
|
case AsmToken::Integer:
|
|
if (isDarwin())
|
|
return Error(S, "unexpected integer value");
|
|
else if (getParser().parseAbsoluteExpression(IntVal) || IntVal < 0 ||
|
|
IntVal > 31)
|
|
return Error(S, "invalid register number");
|
|
break;
|
|
case AsmToken::Identifier:
|
|
if (isDarwin()) {
|
|
unsigned RegNo;
|
|
if (!MatchRegisterName(RegNo, IntVal)) {
|
|
break;
|
|
}
|
|
}
|
|
LLVM_FALLTHROUGH;
|
|
|
|
default:
|
|
return Error(S, "invalid memory operand");
|
|
}
|
|
|
|
E = Parser.getTok().getLoc();
|
|
if (parseToken(AsmToken::RParen, "missing ')'"))
|
|
return true;
|
|
Operands.push_back(PPCOperand::CreateImm(IntVal, S, E, isPPC64()));
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/// Parse an instruction mnemonic followed by its operands.
|
|
bool PPCAsmParser::ParseInstruction(ParseInstructionInfo &Info, StringRef Name,
|
|
SMLoc NameLoc, OperandVector &Operands) {
|
|
// The first operand is the token for the instruction name.
|
|
// If the next character is a '+' or '-', we need to add it to the
|
|
// instruction name, to match what TableGen is doing.
|
|
std::string NewOpcode;
|
|
if (parseOptionalToken(AsmToken::Plus)) {
|
|
NewOpcode = Name;
|
|
NewOpcode += '+';
|
|
Name = NewOpcode;
|
|
}
|
|
if (parseOptionalToken(AsmToken::Minus)) {
|
|
NewOpcode = Name;
|
|
NewOpcode += '-';
|
|
Name = NewOpcode;
|
|
}
|
|
// If the instruction ends in a '.', we need to create a separate
|
|
// token for it, to match what TableGen is doing.
|
|
size_t Dot = Name.find('.');
|
|
StringRef Mnemonic = Name.slice(0, Dot);
|
|
if (!NewOpcode.empty()) // Underlying memory for Name is volatile.
|
|
Operands.push_back(
|
|
PPCOperand::CreateTokenWithStringCopy(Mnemonic, NameLoc, isPPC64()));
|
|
else
|
|
Operands.push_back(PPCOperand::CreateToken(Mnemonic, NameLoc, isPPC64()));
|
|
if (Dot != StringRef::npos) {
|
|
SMLoc DotLoc = SMLoc::getFromPointer(NameLoc.getPointer() + Dot);
|
|
StringRef DotStr = Name.slice(Dot, StringRef::npos);
|
|
if (!NewOpcode.empty()) // Underlying memory for Name is volatile.
|
|
Operands.push_back(
|
|
PPCOperand::CreateTokenWithStringCopy(DotStr, DotLoc, isPPC64()));
|
|
else
|
|
Operands.push_back(PPCOperand::CreateToken(DotStr, DotLoc, isPPC64()));
|
|
}
|
|
|
|
// If there are no more operands then finish
|
|
if (parseOptionalToken(AsmToken::EndOfStatement))
|
|
return false;
|
|
|
|
// Parse the first operand
|
|
if (ParseOperand(Operands))
|
|
return true;
|
|
|
|
while (!parseOptionalToken(AsmToken::EndOfStatement)) {
|
|
if (parseToken(AsmToken::Comma) || ParseOperand(Operands))
|
|
return true;
|
|
}
|
|
|
|
// We'll now deal with an unfortunate special case: the syntax for the dcbt
|
|
// and dcbtst instructions differs for server vs. embedded cores.
|
|
// The syntax for dcbt is:
|
|
// dcbt ra, rb, th [server]
|
|
// dcbt th, ra, rb [embedded]
|
|
// where th can be omitted when it is 0. dcbtst is the same. We take the
|
|
// server form to be the default, so swap the operands if we're parsing for
|
|
// an embedded core (they'll be swapped again upon printing).
|
|
if (getSTI().getFeatureBits()[PPC::FeatureBookE] &&
|
|
Operands.size() == 4 &&
|
|
(Name == "dcbt" || Name == "dcbtst")) {
|
|
std::swap(Operands[1], Operands[3]);
|
|
std::swap(Operands[2], Operands[1]);
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/// ParseDirective parses the PPC specific directives
|
|
bool PPCAsmParser::ParseDirective(AsmToken DirectiveID) {
|
|
StringRef IDVal = DirectiveID.getIdentifier();
|
|
if (isDarwin()) {
|
|
if (IDVal == ".machine")
|
|
ParseDarwinDirectiveMachine(DirectiveID.getLoc());
|
|
else
|
|
return true;
|
|
} else if (IDVal == ".word")
|
|
ParseDirectiveWord(2, DirectiveID);
|
|
else if (IDVal == ".llong")
|
|
ParseDirectiveWord(8, DirectiveID);
|
|
else if (IDVal == ".tc")
|
|
ParseDirectiveTC(isPPC64() ? 8 : 4, DirectiveID);
|
|
else if (IDVal == ".machine")
|
|
ParseDirectiveMachine(DirectiveID.getLoc());
|
|
else if (IDVal == ".abiversion")
|
|
ParseDirectiveAbiVersion(DirectiveID.getLoc());
|
|
else if (IDVal == ".localentry")
|
|
ParseDirectiveLocalEntry(DirectiveID.getLoc());
|
|
else
|
|
return true;
|
|
return false;
|
|
}
|
|
|
|
/// ParseDirectiveWord
|
|
/// ::= .word [ expression (, expression)* ]
|
|
bool PPCAsmParser::ParseDirectiveWord(unsigned Size, AsmToken ID) {
|
|
auto parseOp = [&]() -> bool {
|
|
const MCExpr *Value;
|
|
SMLoc ExprLoc = getParser().getTok().getLoc();
|
|
if (getParser().parseExpression(Value))
|
|
return true;
|
|
if (const auto *MCE = dyn_cast<MCConstantExpr>(Value)) {
|
|
assert(Size <= 8 && "Invalid size");
|
|
uint64_t IntValue = MCE->getValue();
|
|
if (!isUIntN(8 * Size, IntValue) && !isIntN(8 * Size, IntValue))
|
|
return Error(ExprLoc, "literal value out of range for '" +
|
|
ID.getIdentifier() + "' directive");
|
|
getStreamer().EmitIntValue(IntValue, Size);
|
|
} else
|
|
getStreamer().EmitValue(Value, Size, ExprLoc);
|
|
return false;
|
|
};
|
|
|
|
if (parseMany(parseOp))
|
|
return addErrorSuffix(" in '" + ID.getIdentifier() + "' directive");
|
|
return false;
|
|
}
|
|
|
|
/// ParseDirectiveTC
|
|
/// ::= .tc [ symbol (, expression)* ]
|
|
bool PPCAsmParser::ParseDirectiveTC(unsigned Size, AsmToken ID) {
|
|
MCAsmParser &Parser = getParser();
|
|
// Skip TC symbol, which is only used with XCOFF.
|
|
while (getLexer().isNot(AsmToken::EndOfStatement)
|
|
&& getLexer().isNot(AsmToken::Comma))
|
|
Parser.Lex();
|
|
if (parseToken(AsmToken::Comma))
|
|
return addErrorSuffix(" in '.tc' directive");
|
|
|
|
// Align to word size.
|
|
getParser().getStreamer().EmitValueToAlignment(Size);
|
|
|
|
// Emit expressions.
|
|
return ParseDirectiveWord(Size, ID);
|
|
}
|
|
|
|
/// ParseDirectiveMachine (ELF platforms)
|
|
/// ::= .machine [ cpu | "push" | "pop" ]
|
|
bool PPCAsmParser::ParseDirectiveMachine(SMLoc L) {
|
|
MCAsmParser &Parser = getParser();
|
|
if (Parser.getTok().isNot(AsmToken::Identifier) &&
|
|
Parser.getTok().isNot(AsmToken::String))
|
|
return Error(L, "unexpected token in '.machine' directive");
|
|
|
|
StringRef CPU = Parser.getTok().getIdentifier();
|
|
|
|
// FIXME: Right now, the parser always allows any available
|
|
// instruction, so the .machine directive is not useful.
|
|
// Implement ".machine any" (by doing nothing) for the benefit
|
|
// of existing assembler code. Likewise, we can then implement
|
|
// ".machine push" and ".machine pop" as no-op.
|
|
if (CPU != "any" && CPU != "push" && CPU != "pop")
|
|
return TokError("unrecognized machine type");
|
|
|
|
Parser.Lex();
|
|
|
|
if (parseToken(AsmToken::EndOfStatement))
|
|
return addErrorSuffix(" in '.machine' directive");
|
|
|
|
PPCTargetStreamer &TStreamer =
|
|
*static_cast<PPCTargetStreamer *>(
|
|
getParser().getStreamer().getTargetStreamer());
|
|
TStreamer.emitMachine(CPU);
|
|
|
|
return false;
|
|
}
|
|
|
|
/// ParseDarwinDirectiveMachine (Mach-o platforms)
|
|
/// ::= .machine cpu-identifier
|
|
bool PPCAsmParser::ParseDarwinDirectiveMachine(SMLoc L) {
|
|
MCAsmParser &Parser = getParser();
|
|
if (Parser.getTok().isNot(AsmToken::Identifier) &&
|
|
Parser.getTok().isNot(AsmToken::String))
|
|
return Error(L, "unexpected token in directive");
|
|
|
|
StringRef CPU = Parser.getTok().getIdentifier();
|
|
Parser.Lex();
|
|
|
|
// FIXME: this is only the 'default' set of cpu variants.
|
|
// However we don't act on this information at present, this is simply
|
|
// allowing parsing to proceed with minimal sanity checking.
|
|
if (check(CPU != "ppc7400" && CPU != "ppc" && CPU != "ppc64", L,
|
|
"unrecognized cpu type") ||
|
|
check(isPPC64() && (CPU == "ppc7400" || CPU == "ppc"), L,
|
|
"wrong cpu type specified for 64bit") ||
|
|
check(!isPPC64() && CPU == "ppc64", L,
|
|
"wrong cpu type specified for 32bit") ||
|
|
parseToken(AsmToken::EndOfStatement))
|
|
return addErrorSuffix(" in '.machine' directive");
|
|
return false;
|
|
}
|
|
|
|
/// ParseDirectiveAbiVersion
|
|
/// ::= .abiversion constant-expression
|
|
bool PPCAsmParser::ParseDirectiveAbiVersion(SMLoc L) {
|
|
int64_t AbiVersion;
|
|
if (check(getParser().parseAbsoluteExpression(AbiVersion), L,
|
|
"expected constant expression") ||
|
|
parseToken(AsmToken::EndOfStatement))
|
|
return addErrorSuffix(" in '.abiversion' directive");
|
|
|
|
PPCTargetStreamer &TStreamer =
|
|
*static_cast<PPCTargetStreamer *>(
|
|
getParser().getStreamer().getTargetStreamer());
|
|
TStreamer.emitAbiVersion(AbiVersion);
|
|
|
|
return false;
|
|
}
|
|
|
|
/// ParseDirectiveLocalEntry
|
|
/// ::= .localentry symbol, expression
|
|
bool PPCAsmParser::ParseDirectiveLocalEntry(SMLoc L) {
|
|
StringRef Name;
|
|
if (getParser().parseIdentifier(Name))
|
|
return Error(L, "expected identifier in '.localentry' directive");
|
|
|
|
MCSymbolELF *Sym = cast<MCSymbolELF>(getContext().getOrCreateSymbol(Name));
|
|
const MCExpr *Expr;
|
|
|
|
if (parseToken(AsmToken::Comma) ||
|
|
check(getParser().parseExpression(Expr), L, "expected expression") ||
|
|
parseToken(AsmToken::EndOfStatement))
|
|
return addErrorSuffix(" in '.localentry' directive");
|
|
|
|
PPCTargetStreamer &TStreamer =
|
|
*static_cast<PPCTargetStreamer *>(
|
|
getParser().getStreamer().getTargetStreamer());
|
|
TStreamer.emitLocalEntry(Sym, Expr);
|
|
|
|
return false;
|
|
}
|
|
|
|
|
|
|
|
/// Force static initialization.
|
|
extern "C" void LLVMInitializePowerPCAsmParser() {
|
|
RegisterMCAsmParser<PPCAsmParser> A(getThePPC32Target());
|
|
RegisterMCAsmParser<PPCAsmParser> B(getThePPC64Target());
|
|
RegisterMCAsmParser<PPCAsmParser> C(getThePPC64LETarget());
|
|
}
|
|
|
|
#define GET_REGISTER_MATCHER
|
|
#define GET_MATCHER_IMPLEMENTATION
|
|
#define GET_MNEMONIC_SPELL_CHECKER
|
|
#include "PPCGenAsmMatcher.inc"
|
|
|
|
// Define this matcher function after the auto-generated include so we
|
|
// have the match class enum definitions.
|
|
unsigned PPCAsmParser::validateTargetOperandClass(MCParsedAsmOperand &AsmOp,
|
|
unsigned Kind) {
|
|
// If the kind is a token for a literal immediate, check if our asm
|
|
// operand matches. This is for InstAliases which have a fixed-value
|
|
// immediate in the syntax.
|
|
int64_t ImmVal;
|
|
switch (Kind) {
|
|
case MCK_0: ImmVal = 0; break;
|
|
case MCK_1: ImmVal = 1; break;
|
|
case MCK_2: ImmVal = 2; break;
|
|
case MCK_3: ImmVal = 3; break;
|
|
case MCK_4: ImmVal = 4; break;
|
|
case MCK_5: ImmVal = 5; break;
|
|
case MCK_6: ImmVal = 6; break;
|
|
case MCK_7: ImmVal = 7; break;
|
|
default: return Match_InvalidOperand;
|
|
}
|
|
|
|
PPCOperand &Op = static_cast<PPCOperand &>(AsmOp);
|
|
if (Op.isImm() && Op.getImm() == ImmVal)
|
|
return Match_Success;
|
|
|
|
return Match_InvalidOperand;
|
|
}
|
|
|
|
const MCExpr *
|
|
PPCAsmParser::applyModifierToExpr(const MCExpr *E,
|
|
MCSymbolRefExpr::VariantKind Variant,
|
|
MCContext &Ctx) {
|
|
switch (Variant) {
|
|
case MCSymbolRefExpr::VK_PPC_LO:
|
|
return PPCMCExpr::create(PPCMCExpr::VK_PPC_LO, E, false, Ctx);
|
|
case MCSymbolRefExpr::VK_PPC_HI:
|
|
return PPCMCExpr::create(PPCMCExpr::VK_PPC_HI, E, false, Ctx);
|
|
case MCSymbolRefExpr::VK_PPC_HA:
|
|
return PPCMCExpr::create(PPCMCExpr::VK_PPC_HA, E, false, Ctx);
|
|
case MCSymbolRefExpr::VK_PPC_HIGH:
|
|
return PPCMCExpr::create(PPCMCExpr::VK_PPC_HIGH, E, false, Ctx);
|
|
case MCSymbolRefExpr::VK_PPC_HIGHA:
|
|
return PPCMCExpr::create(PPCMCExpr::VK_PPC_HIGHA, E, false, Ctx);
|
|
case MCSymbolRefExpr::VK_PPC_HIGHER:
|
|
return PPCMCExpr::create(PPCMCExpr::VK_PPC_HIGHER, E, false, Ctx);
|
|
case MCSymbolRefExpr::VK_PPC_HIGHERA:
|
|
return PPCMCExpr::create(PPCMCExpr::VK_PPC_HIGHERA, E, false, Ctx);
|
|
case MCSymbolRefExpr::VK_PPC_HIGHEST:
|
|
return PPCMCExpr::create(PPCMCExpr::VK_PPC_HIGHEST, E, false, Ctx);
|
|
case MCSymbolRefExpr::VK_PPC_HIGHESTA:
|
|
return PPCMCExpr::create(PPCMCExpr::VK_PPC_HIGHESTA, E, false, Ctx);
|
|
default:
|
|
return nullptr;
|
|
}
|
|
}
|