forked from OSchip/llvm-project
169 lines
4.1 KiB
C++
169 lines
4.1 KiB
C++
//===-- TargetLibraryInfo.cpp - Runtime library information ----------------==//
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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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//
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// This file implements the TargetLibraryInfo class.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/Target/TargetLibraryInfo.h"
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#include "llvm/ADT/Triple.h"
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using namespace llvm;
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// Register the default implementation.
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INITIALIZE_PASS(TargetLibraryInfo, "targetlibinfo",
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"Target Library Information", false, true)
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char TargetLibraryInfo::ID = 0;
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const char* TargetLibraryInfo::StandardNames[LibFunc::NumLibFuncs] =
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{
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"acos",
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"acosl",
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"acosf",
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"asin",
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"asinl",
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"asinf",
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"atan",
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"atanl",
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"atanf",
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"atan2",
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"atan2l",
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"atan2f",
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"ceil",
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"ceill",
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"ceilf",
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"cos",
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"cosl",
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"cosf",
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"cosh",
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"coshl",
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"coshf",
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"exp",
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"expl",
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"expf",
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"exp2",
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"exp2l",
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"exp2f",
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"expm1",
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"expm1l",
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"expl1f",
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"fabs",
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"fabsl",
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"fabsf",
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"floor",
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"floorl",
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"floorf",
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"fiprintf",
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"fmod",
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"fmodl",
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"fmodf",
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"fputs",
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"fwrite",
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"iprintf",
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"log",
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"logl",
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"logf",
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"log2",
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"log2l",
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"log2f",
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"log10",
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"log10l",
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"log10f",
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"log1p",
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"log1pl",
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"log1pf",
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"memcpy",
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"memmove",
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"memset",
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"memset_pattern16",
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"pow",
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"powf",
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"powl",
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"sin",
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"sinl",
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"sinf",
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"sinh",
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"sinhl",
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"sinhf",
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"siprintf",
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"sqrt",
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"sqrtl",
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"sqrtf",
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"tan",
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"tanl",
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"tanf",
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"tanh",
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"tanhl",
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"tanhf"
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};
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/// initialize - Initialize the set of available library functions based on the
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/// specified target triple. This should be carefully written so that a missing
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/// target triple gets a sane set of defaults.
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static void initialize(TargetLibraryInfo &TLI, const Triple &T) {
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initializeTargetLibraryInfoPass(*PassRegistry::getPassRegistry());
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// memset_pattern16 is only available on iOS 3.0 and Mac OS/X 10.5 and later.
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if (T.isMacOSX()) {
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if (T.isMacOSXVersionLT(10, 5))
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TLI.setUnavailable(LibFunc::memset_pattern16);
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} else if (T.getOS() == Triple::IOS) {
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if (T.isOSVersionLT(3, 0))
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TLI.setUnavailable(LibFunc::memset_pattern16);
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} else {
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TLI.setUnavailable(LibFunc::memset_pattern16);
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}
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if (T.isMacOSX() && T.getArch() == Triple::x86 &&
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!T.isMacOSXVersionLT(10, 7)) {
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// x86-32 OSX has a scheme where fwrite and fputs (and some other functions
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// we don't care about) have two versions; on recent OSX, the one we want
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// has a $UNIX2003 suffix. The two implementations are identical except
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// for the return value in some edge cases. However, we don't want to
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// generate code that depends on the old symbols.
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TLI.setAvailableWithName(LibFunc::fwrite, "fwrite$UNIX2003");
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TLI.setAvailableWithName(LibFunc::fputs, "fputs$UNIX2003");
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}
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// iprintf and friends are only available on XCore and TCE.
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if (T.getArch() != Triple::xcore && T.getArch() != Triple::tce) {
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TLI.setUnavailable(LibFunc::iprintf);
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TLI.setUnavailable(LibFunc::siprintf);
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TLI.setUnavailable(LibFunc::fiprintf);
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}
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}
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TargetLibraryInfo::TargetLibraryInfo() : ImmutablePass(ID) {
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// Default to everything being available.
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memset(AvailableArray, -1, sizeof(AvailableArray));
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initialize(*this, Triple());
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}
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TargetLibraryInfo::TargetLibraryInfo(const Triple &T) : ImmutablePass(ID) {
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// Default to everything being available.
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memset(AvailableArray, -1, sizeof(AvailableArray));
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initialize(*this, T);
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}
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TargetLibraryInfo::TargetLibraryInfo(const TargetLibraryInfo &TLI)
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: ImmutablePass(ID) {
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memcpy(AvailableArray, TLI.AvailableArray, sizeof(AvailableArray));
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CustomNames = TLI.CustomNames;
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}
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/// disableAllFunctions - This disables all builtins, which is used for options
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/// like -fno-builtin.
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void TargetLibraryInfo::disableAllFunctions() {
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memset(AvailableArray, 0, sizeof(AvailableArray));
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}
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