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Fix recognition of ARM 'adcs' mnemonic.

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The 'CS' is not a predication suffix in this case.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134903 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jim Grosbach 2011-07-11 17:09:57 +00:00
parent 589130fac1
commit 3f00e31706
2 changed files with 57 additions and 23 deletions
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49
lib/Target/ARM/AsmParser/ARMAsmParser.cpp
View File

@ -1808,29 +1808,32 @@ static StringRef SplitMnemonic(StringRef Mnemonic,
Mnemonic == "vqdmlal" || Mnemonic == "bics"))
return Mnemonic;
// First, split out any predication code.
unsigned CC = StringSwitch<unsigned>(Mnemonic.substr(Mnemonic.size()-2))
.Case("eq", ARMCC::EQ)
.Case("ne", ARMCC::NE)
.Case("hs", ARMCC::HS)
.Case("cs", ARMCC::HS)
.Case("lo", ARMCC::LO)
.Case("cc", ARMCC::LO)
.Case("mi", ARMCC::MI)
.Case("pl", ARMCC::PL)
.Case("vs", ARMCC::VS)
.Case("vc", ARMCC::VC)
.Case("hi", ARMCC::HI)
.Case("ls", ARMCC::LS)
.Case("ge", ARMCC::GE)
.Case("lt", ARMCC::LT)
.Case("gt", ARMCC::GT)
.Case("le", ARMCC::LE)
.Case("al", ARMCC::AL)
.Default(~0U);
if (CC != ~0U) {
Mnemonic = Mnemonic.slice(0, Mnemonic.size() - 2);
PredicationCode = CC;
// First, split out any predication code. Ignore mnemonics we know aren't
// predicated but do have a carry-set and so weren't caught above.
if (Mnemonic != "adcs") {
unsigned CC = StringSwitch<unsigned>(Mnemonic.substr(Mnemonic.size()-2))
.Case("eq", ARMCC::EQ)
.Case("ne", ARMCC::NE)
.Case("hs", ARMCC::HS)
.Case("cs", ARMCC::HS)
.Case("lo", ARMCC::LO)
.Case("cc", ARMCC::LO)
.Case("mi", ARMCC::MI)
.Case("pl", ARMCC::PL)
.Case("vs", ARMCC::VS)
.Case("vc", ARMCC::VC)
.Case("hi", ARMCC::HI)
.Case("ls", ARMCC::LS)
.Case("ge", ARMCC::GE)
.Case("lt", ARMCC::LT)
.Case("gt", ARMCC::GT)
.Case("le", ARMCC::LE)
.Case("al", ARMCC::AL)
.Default(~0U);
if (CC != ~0U) {
Mnemonic = Mnemonic.slice(0, Mnemonic.size() - 2);
PredicationCode = CC;
}
}
// Next, determine if we have a carry setting bit. We explicitly ignore all

31
test/MC/ARM/basic-arm-instructions.s Normal file
View File

@ -0,0 +1,31 @@
@ RUN: llvm-mc -triple=armv7-apple-darwin -show-encoding < %s | FileCheck %s
.syntax unified
.globl _func
_func:
@ CHECK: _func
@ ADC (immediate)
adc r1, r2, #0xf
adc r1, r2, #0xf0
adc r1, r2, #0xf00
adc r1, r2, #0xf000
adc r1, r2, #0xf0000
adc r1, r2, #0xf00000
adc r1, r2, #0xf000000
adc r1, r2, #0xf0000000
adc r1, r2, #0xf000000f
adcs r1, r2, #0xf00
adcseq r1, r2, #0xf00
@ CHECK: adc r1, r2, #15 @ encoding: [0x0f,0x10,0xa2,0xe2]
@ CHECK: adc r1, r2, #240 @ encoding: [0xf0,0x10,0xa2,0xe2]
@ CHECK: adc r1, r2, #3840 @ encoding: [0x0f,0x1c,0xa2,0xe2]
@ CHECK: adc r1, r2, #61440 @ encoding: [0x0f,0x1a,0xa2,0xe2]
@ CHECK: adc r1, r2, #983040 @ encoding: [0x0f,0x18,0xa2,0xe2]
@ CHECK: adc r1, r2, #15728640 @ encoding: [0x0f,0x16,0xa2,0xe2]
@ CHECK: adc r1, r2, #251658240 @ encoding: [0x0f,0x14,0xa2,0xe2]
@ CHECK: adc r1, r2, #4026531840 @ encoding: [0x0f,0x12,0xa2,0xe2]
@ CHECK: adc r1, r2, #4026531855 @ encoding: [0xff,0x12,0xa2,0xe2]
@ CHECK: adcs r1, r2, #3840 @ encoding: [0x0f,0x1c,0xb2,0xe2]
@ CHECK: adcseq r1, r2, #3840 @ encoding: [0x0f,0x1c,0xb2,0x02]