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ARM64: add correct vector registers during asm parsing

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Previously, we ignored the difference between V64 and V128 when parsing
assembly: they both got mapped to registers in the FPR128 class. This is
basically harmless at the moment because they both print and encode the same
way. However, it will affect the printing of aliases.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@208866 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Tim Northover 2014-05-15 11:16:19 +00:00
parent 75aa5372bc
commit d744346566
2 changed files with 23 additions and 5 deletions
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19
lib/Target/ARM64/ARM64RegisterInfo.td
View File

@ -434,10 +434,21 @@ def QQQQ : RegisterClass<"ARM64", [untyped], 128, (add QSeqQuads)> {
// Vector operand versions of the FP registers. Alternate name printing and
// assmebler matching.
def VectorRegAsmOperand : AsmOperandClass { let Name = "VectorReg"; }
let ParserMatchClass = VectorRegAsmOperand in {
def V64 : RegisterOperand<FPR64, "printVRegOperand">;
def V128 : RegisterOperand<FPR128, "printVRegOperand">;
def VectorReg64AsmOperand : AsmOperandClass {
let Name = "VectorReg64";
let PredicateMethod = "isVectorReg";
}
def VectorReg128AsmOperand : AsmOperandClass {
let Name = "VectorReg128";
let PredicateMethod = "isVectorReg";
}
def V64 : RegisterOperand<FPR64, "printVRegOperand"> {
let ParserMatchClass = VectorReg64AsmOperand;
}
def V128 : RegisterOperand<FPR128, "printVRegOperand"> {
let ParserMatchClass = VectorReg128AsmOperand;
}
def VectorRegLoAsmOperand : AsmOperandClass { let Name = "VectorRegLo"; }

9
lib/Target/ARM64/AsmParser/ARM64AsmParser.cpp
View File

@ -1188,8 +1188,15 @@ public:
Inst.addOperand(MCOperand::CreateReg(getReg()));
}
void addVectorRegOperands(MCInst &Inst, unsigned N) const {
void addVectorReg64Operands(MCInst &Inst, unsigned N) const {
assert(N == 1 && "Invalid number of operands!");
assert(ARM64MCRegisterClasses[ARM64::FPR128RegClassID].contains(getReg()));
Inst.addOperand(MCOperand::CreateReg(ARM64::D0 + getReg() - ARM64::Q0));
}
void addVectorReg128Operands(MCInst &Inst, unsigned N) const {
assert(N == 1 && "Invalid number of operands!");
assert(ARM64MCRegisterClasses[ARM64::FPR128RegClassID].contains(getReg()));
Inst.addOperand(MCOperand::CreateReg(getReg()));
}