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Fix a crasher in Thumb2 MOV-immediate encoding for certain inputs.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139747 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Owen Anderson 2011-09-14 22:46:14 +00:00
parent 544e4124fe
commit 8adf62034a
2 changed files with 3 additions and 1 deletions
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2
lib/Target/ARM/AsmParser/ARMAsmParser.cpp
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@ -3261,7 +3261,7 @@ bool ARMAsmParser::shouldOmitCCOutOperand(StringRef Mnemonic,
// We do this as post-processing of the explicit operands rather than just
// conditionally adding the cc_out in the first place because we need
// to check the type of the parsed immediate operand.
if (Mnemonic == "mov" && Operands.size() > 4 &&
if (Mnemonic == "mov" && Operands.size() > 4 && !isThumb() &&
!static_cast<ARMOperand*>(Operands[4])->isARMSOImm() &&
static_cast<ARMOperand*>(Operands[4])->isImm0_65535Expr() &&
static_cast<ARMOperand*>(Operands[1])->getReg() == 0)

2
test/MC/ARM/basic-thumb2-instructions.s
View File

@ -1013,6 +1013,7 @@ _func:
movseq r1, #12
moveq r1, #12
movne.w r1, #12
mov.w r6, #450
@ CHECK: movs r1, #21 @ encoding: [0x15,0x21]
@ CHECK: movs.w r1, #21 @ encoding: [0x5f,0xf0,0x15,0x01]
@ -1027,6 +1028,7 @@ _func:
@ CHECK: movseq.w r1, #12 @ encoding: [0x5f,0xf0,0x0c,0x01]
@ CHECK: moveq r1, #12 @ encoding: [0x0c,0x21]
@ CHECK: movne.w r1, #12 @ encoding: [0x4f,0xf0,0x0c,0x01]
@ CHECK: mov.w r6, #450 @ encoding: [0x4f,0xf4,0xe1,0x76]
@------------------------------------------------------------------------------