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[AArch64] Handle aliases of conditional branches without b.pred form.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@201091 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chad Rosier 2014-02-10 15:43:11 +00:00
parent dbd5c285b8
commit 5fcb5c92d3
2 changed files with 76 additions and 3 deletions
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27
lib/Target/AArch64/AsmParser/AArch64AsmParser.cpp
View File

@ -2240,15 +2240,36 @@ validateInstruction(MCInst &Inst,
bool AArch64AsmParser::ParseInstruction(ParseInstructionInfo &Info,
StringRef Name, SMLoc NameLoc,
SmallVectorImpl<MCParsedAsmOperand*> &Operands) {
size_t CondCodePos = Name.find('.');
StringRef PatchedName = StringSwitch<StringRef>(Name.lower())
.Case("beq", "b.eq")
.Case("bne", "b.ne")
.Case("bhs", "b.hs")
.Case("bcs", "b.cs")
.Case("blo", "b.lo")
.Case("bcc", "b.cc")
.Case("bmi", "b.mi")
.Case("bpl", "b.pl")
.Case("bvs", "b.vs")
.Case("bvc", "b.vc")
.Case("bhi", "b.hi")
.Case("bls", "b.ls")
.Case("bge", "b.ge")
.Case("blt", "b.lt")
.Case("bgt", "b.gt")
.Case("ble", "b.le")
.Case("bal", "b.al")
.Case("bnv", "b.nv")
.Default(Name);
StringRef Mnemonic = Name.substr(0, CondCodePos);
size_t CondCodePos = PatchedName.find('.');
StringRef Mnemonic = PatchedName.substr(0, CondCodePos);
Operands.push_back(AArch64Operand::CreateToken(Mnemonic, NameLoc));
if (CondCodePos != StringRef::npos) {
// We have a condition code
SMLoc S = SMLoc::getFromPointer(NameLoc.getPointer() + CondCodePos + 1);
StringRef CondStr = Name.substr(CondCodePos + 1, StringRef::npos);
StringRef CondStr = PatchedName.substr(CondCodePos + 1, StringRef::npos);
A64CC::CondCodes Code;
Code = A64StringToCondCode(CondStr);

52
test/MC/AArch64/basic-a64-instructions.s
View File

@ -1192,6 +1192,58 @@ _func:
// CHECK: b.le lbl // encoding: [0x0d'A',A,A,0x54'A']
// CHECK: // fixup A - offset: 0, value: lbl, kind: fixup_a64_condbr
// CHECK: b.al lbl // encoding: [0x0e'A',A,A,0x54'A']
// CHECK: // fixup A - offset: 0, value: lbl, kind: fixup_a64_condbr
beq lbl
bne lbl
bcs lbl
bhs lbl
blo lbl
bcc lbl
bmi lbl
bpl lbl
bvs lbl
bvc lbl
bhi lbl
bls lbl
bge lbl
blt lbl
bgt lbl
ble lbl
bal lbl
// CHECK: b.eq lbl // encoding: [A,A,A,0x54'A']
// CHECK: // fixup A - offset: 0, value: lbl, kind: fixup_a64_condbr
// CHECK: b.ne lbl // encoding: [0x01'A',A,A,0x54'A']
// CHECK: // fixup A - offset: 0, value: lbl, kind: fixup_a64_condbr
// CHECK: b.hs lbl // encoding: [0x02'A',A,A,0x54'A']
// CHECK: // fixup A - offset: 0, value: lbl, kind: fixup_a64_condbr
// CHECK: b.hs lbl // encoding: [0x02'A',A,A,0x54'A']
// CHECK: // fixup A - offset: 0, value: lbl, kind: fixup_a64_condbr
// CHECK: b.lo lbl // encoding: [0x03'A',A,A,0x54'A']
// CHECK: // fixup A - offset: 0, value: lbl, kind: fixup_a64_condbr
// CHECK: b.lo lbl // encoding: [0x03'A',A,A,0x54'A']
// CHECK: // fixup A - offset: 0, value: lbl, kind: fixup_a64_condbr
// CHECK: b.mi lbl // encoding: [0x04'A',A,A,0x54'A']
// CHECK: // fixup A - offset: 0, value: lbl, kind: fixup_a64_condbr
// CHECK: b.pl lbl // encoding: [0x05'A',A,A,0x54'A']
// CHECK: // fixup A - offset: 0, value: lbl, kind: fixup_a64_condbr
// CHECK: b.vs lbl // encoding: [0x06'A',A,A,0x54'A']
// CHECK: // fixup A - offset: 0, value: lbl, kind: fixup_a64_condbr
// CHECK: b.vc lbl // encoding: [0x07'A',A,A,0x54'A']
// CHECK: // fixup A - offset: 0, value: lbl, kind: fixup_a64_condbr
// CHECK: b.hi lbl // encoding: [0x08'A',A,A,0x54'A']
// CHECK: // fixup A - offset: 0, value: lbl, kind: fixup_a64_condbr
// CHECK: b.ls lbl // encoding: [0x09'A',A,A,0x54'A']
// CHECK: // fixup A - offset: 0, value: lbl, kind: fixup_a64_condbr
// CHECK: b.ge lbl // encoding: [0x0a'A',A,A,0x54'A']
// CHECK: // fixup A - offset: 0, value: lbl, kind: fixup_a64_condbr
// CHECK: b.lt lbl // encoding: [0x0b'A',A,A,0x54'A']
// CHECK: // fixup A - offset: 0, value: lbl, kind: fixup_a64_condbr
// CHECK: b.gt lbl // encoding: [0x0c'A',A,A,0x54'A']
// CHECK: // fixup A - offset: 0, value: lbl, kind: fixup_a64_condbr
// CHECK: b.le lbl // encoding: [0x0d'A',A,A,0x54'A']
// CHECK: // fixup A - offset: 0, value: lbl, kind: fixup_a64_condbr
// CHECK: b.al lbl // encoding: [0x0e'A',A,A,0x54'A']
// CHECK: // fixup A - offset: 0, value: lbl, kind: fixup_a64_condbr
b.eq #0