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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33489 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jim Laskey 2007-01-24 18:50:57 +00:00
parent 5e73d5bd2e
commit 7ac947d23d
1 changed files with 8 additions and 4 deletions
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12
lib/Target/X86/X86RegisterInfo.cpp
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@ -926,7 +926,8 @@ eliminateCallFramePseudoInstr(MachineFunction &MF, MachineBasicBlock &MBB,
unsigned Opc = (Amount < 128) ?
(Is64Bit ? X86::ADD64ri8 : X86::ADD32ri8) :
(Is64Bit ? X86::ADD64ri32 : X86::ADD32ri);
New = BuildMI(TII.get(Opc), StackPtr).addReg(StackPtr).addImm(Amount);
New = BuildMI(TII.get(Opc), StackPtr)
.addReg(StackPtr).addImm(Amount);
}
}
@ -1044,7 +1045,8 @@ void X86RegisterInfo::emitPrologue(MachineFunction &MF) const {
// If it's main() on Cygwin\Mingw32 we should align stack as well
if (Fn->hasExternalLinkage() && Fn->getName() == "main" &&
Subtarget->isTargetCygMing()) {
MI= BuildMI(TII.get(X86::AND32ri), X86::ESP).addReg(X86::ESP).addImm(-Align);
MI= BuildMI(TII.get(X86::AND32ri), X86::ESP)
.addReg(X86::ESP).addImm(-Align);
MBB.insert(MBBI, MI);
// Probe the stack
@ -1104,12 +1106,14 @@ void X86RegisterInfo::emitEpilogue(MachineFunction &MF,
unsigned Opc = (NumBytes < 128) ?
(Is64Bit ? X86::ADD64ri8 : X86::ADD32ri8) :
(Is64Bit ? X86::ADD64ri32 : X86::ADD32ri);
BuildMI(MBB, MBBI, TII.get(Opc), StackPtr).addReg(StackPtr).addImm(NumBytes);
BuildMI(MBB, MBBI, TII.get(Opc), StackPtr)
.addReg(StackPtr).addImm(NumBytes);
} else if ((int)NumBytes < 0) {
unsigned Opc = (-NumBytes < 128) ?
(Is64Bit ? X86::SUB64ri8 : X86::SUB32ri8) :
(Is64Bit ? X86::SUB64ri32 : X86::SUB32ri);
BuildMI(MBB, MBBI, TII.get(Opc), StackPtr).addReg(StackPtr).addImm(-NumBytes);
BuildMI(MBB, MBBI, TII.get(Opc), StackPtr)
.addReg(StackPtr).addImm(-NumBytes);
}
}
}