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Fix assembly parsing and encoding of the pushf and popf family of

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instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104231 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman
2010-05-20 16:16:00 +00:00
parent 100804f494
commit e5e4ff974d
7 changed files with 60 additions and 10 deletions
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8
lib/Target/X86/X86InstrInfo.cpp
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@@ -1993,12 +1993,12 @@ bool X86InstrInfo::copyRegToReg(MachineBasicBlock &MBB,
if (SrcReg != X86::EFLAGS)
return false;
if (DestRC == &X86::GR64RegClass || DestRC == &X86::GR64_NOSPRegClass) {
BuildMI(MBB, MI, DL, get(X86::PUSHFQ64));
BuildMI(MBB, MI, DL, get(X86::PUSHF64));
BuildMI(MBB, MI, DL, get(X86::POP64r), DestReg);
return true;
} else if (DestRC == &X86::GR32RegClass ||
DestRC == &X86::GR32_NOSPRegClass) {
BuildMI(MBB, MI, DL, get(X86::PUSHFD));
BuildMI(MBB, MI, DL, get(X86::PUSHF32));
BuildMI(MBB, MI, DL, get(X86::POP32r), DestReg);
return true;
}
@@ -2007,12 +2007,12 @@ bool X86InstrInfo::copyRegToReg(MachineBasicBlock &MBB,
return false;
if (SrcRC == &X86::GR64RegClass || DestRC == &X86::GR64_NOSPRegClass) {
BuildMI(MBB, MI, DL, get(X86::PUSH64r)).addReg(SrcReg);
BuildMI(MBB, MI, DL, get(X86::POPFQ));
BuildMI(MBB, MI, DL, get(X86::POPF64));
return true;
} else if (SrcRC == &X86::GR32RegClass ||
DestRC == &X86::GR32_NOSPRegClass) {
BuildMI(MBB, MI, DL, get(X86::PUSH32r)).addReg(SrcReg);
BuildMI(MBB, MI, DL, get(X86::POPFD));
BuildMI(MBB, MI, DL, get(X86::POPF32));
return true;
}
}