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add a bunch more evil lowering code to work around various :subreg32 modifiers 

in the .td files.  This gets us down to 18 failures in codegen/x86 with the
new asmprinter.

llvm-svn: 81198
This commit is contained in:
Chris Lattner 2009-09-08 06:19:15 +00:00
parent d0521071f5
commit 31d1810b16
1 changed files with 39 additions and 3 deletions
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42
llvm/lib/Target/X86/AsmPrinter/X86MCInstLower.cpp
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@ -50,12 +50,12 @@ static void lower_subreg32(MCInst *MI, unsigned OpNo) {
static void lower_lea64_32mem(MCInst *MI, unsigned OpNo) {
// Convert registers in the addr mode according to subreg64.
for (unsigned i = 0; i != 4; ++i) {
if (!MI->getOperand(i).isReg()) continue;
if (!MI->getOperand(OpNo+i).isReg()) continue;
unsigned Reg = MI->getOperand(i).getReg();
unsigned Reg = MI->getOperand(OpNo+i).getReg();
if (Reg == 0) continue;
MI->getOperand(i).setReg(getX86SubSuperRegister(Reg, MVT::i64));
MI->getOperand(OpNo+i).setReg(getX86SubSuperRegister(Reg, MVT::i64));
}
}
@ -321,6 +321,42 @@ printInstructionThroughMCStreamer(const MachineInstr *MI) {
TmpInst.setOpcode(X86::MOVZX32rm8);
lower_subreg32(&TmpInst, 0);
break;
case X86::MOVSX16rr8:
TmpInst.setOpcode(X86::MOVSX32rr8);
lower_subreg32(&TmpInst, 0);
break;
case X86::MOVSX16rm8:
TmpInst.setOpcode(X86::MOVSX32rm8);
lower_subreg32(&TmpInst, 0);
break;
case X86::MOVZX64rr32:
TmpInst.setOpcode(X86::MOV32rr);
lower_subreg32(&TmpInst, 0);
break;
case X86::MOVZX64rm32:
TmpInst.setOpcode(X86::MOV32rm);
lower_subreg32(&TmpInst, 0);
break;
case X86::MOV64ri64i32:
TmpInst.setOpcode(X86::MOV32ri);
lower_subreg32(&TmpInst, 0);
break;
case X86::MOVZX64rr8:
TmpInst.setOpcode(X86::MOVZX32rr8);
lower_subreg32(&TmpInst, 0);
break;
case X86::MOVZX64rm8:
TmpInst.setOpcode(X86::MOVZX32rm8);
lower_subreg32(&TmpInst, 0);
break;
case X86::MOVZX64rr16:
TmpInst.setOpcode(X86::MOVZX32rr16);
lower_subreg32(&TmpInst, 0);
break;
case X86::MOVZX64rm16:
TmpInst.setOpcode(X86::MOVZX32rm16);
lower_subreg32(&TmpInst, 0);
break;
}
printInstruction(&TmpInst);