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Support clrex instruction on ARMv6k. Patch by Andrew Turner. 

llvm-svn: 256505
This commit is contained in:
Roman Divacky 2015-12-28 17:47:23 +00:00
parent 1f30cf6b40
commit 73fc84761f
2 changed files with 19 additions and 6 deletions
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2
llvm/lib/Target/ARM/ARMInstrInfo.td
View File

@ -4728,7 +4728,7 @@ def STLEXD : AIstlex<0b01, (outs GPR:$Rd),
def CLREX : AXI<(outs), (ins), MiscFrm, NoItinerary, "clrex",
[(int_arm_clrex)]>,
Requires<[IsARM, HasV7]> {
Requires<[IsARM, HasV6K]> {
let Inst{31-0} = 0b11110101011111111111000000011111;
}

23
llvm/test/MC/ARM/arm11-hint-instr.s
View File

@ -5,21 +5,24 @@
@ RUN: | FileCheck --check-prefix=CHECK-ARM %s
@ RUN: llvm-mc -triple=armv6t2 -show-encoding < %s \
@ RUN: | FileCheck --check-prefix=CHECK-ARM %s
@ RUN: llvm-mc -triple=thumb -mcpu=arm1156t2-s -show-encoding < %s \
@ RUN: | FileCheck --check-prefix=CHECK-THUMB %s
@ RUN: llvm-mc -triple=armv6m -show-encoding < %s \
@ RUN: | FileCheck --check-prefix=CHECK-V6M %s
@ RUN: not llvm-mc -triple=thumb -mcpu=arm1156t2-s -show-encoding < %s > %t3 2> %t4
@ RUN: FileCheck --check-prefix=CHECK-THUMB %s < %t3
@ RUN: FileCheck --check-prefix=CHECK-ERROR-THUMB %s < %t4
@ RUN: not llvm-mc -triple=armv6m -show-encoding < %s > %t5 2> %t6
@ RUN: FileCheck --check-prefix=CHECK-V6M %s < %t5
@ RUN: FileCheck --check-prefix=CHECK-ERROR-V6M %s < %t6
.syntax unified
@------------------------------------------------------------------------------
@ YIELD/WFE/WFI/SEV - are not supported pre v6K
@ YIELD/WFE/WFI/SEV/CLREX - are not supported pre v6K
@------------------------------------------------------------------------------
nop
yield
wfe
wfi
sev
clrex
@------------------------------------------------------------------------------
@ -37,6 +40,9 @@
@ CHECK-ERROR-V6: error: instruction requires: armv6k
@ CHECK-ERROR-V6: sev
@ CHECK-ERROR-V6: ^
@ CHECK-ERROR-V6: error: instruction requires: armv6k
@ CHECK-ERROR-V6: clrex
@ CHECK-ERROR-V6: ^
@------------------------------------------------------------------------------
@ v6K using ARM encoding
@ -49,6 +55,7 @@
@ CHECK-ARM: wfe @ encoding: [0x02,0xf0,0x20,0xe3]
@ CHECK-ARM: wfi @ encoding: [0x03,0xf0,0x20,0xe3]
@ CHECK-ARM: sev @ encoding: [0x04,0xf0,0x20,0xe3]
@ CHECK-ARM: clrex @ encoding: [0x1f,0xf0,0x7f,0xf5]
@------------------------------------------------------------------------------
@ v6T2 using THUMB encoding (thumb triple)
@ -58,6 +65,9 @@
@ CHECK-THUMB: wfe @ encoding: [0x20,0xbf]
@ CHECK-THUMB: wfi @ encoding: [0x30,0xbf]
@ CHECK-THUMB: sev @ encoding: [0x40,0xbf]
@ CHECK-ERROR-THUMB: error: instruction requires: armv7
@ CHECK-ERROR-THUMB: clrex
@ CHECK-ERROR-THUMB: ^
@------------------------------------------------------------------------------
@ v6M using THUMB encoding
@ -67,3 +77,6 @@
@ CHECK-V6M: wfe @ encoding: [0x20,0xbf]
@ CHECK-V6M: wfi @ encoding: [0x30,0xbf]
@ CHECK-V6M: sev @ encoding: [0x40,0xbf]
@ CHECK-ERROR-V6M: error: instruction requires: armv7
@ CHECK-ERROR-V6M: clrex
@ CHECK-ERROR-V6M: ^