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Make sure stack manipulation refers to ESP the right number of times

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llvm-svn: 5086
This commit is contained in:
Chris Lattner 2002-12-16 22:29:06 +00:00
parent dfcaf6aa62
commit 2e17697e81
1 changed files with 2 additions and 1 deletions
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3
lib/Target/X86/InstSelectSimple.cpp
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@ -1092,7 +1092,8 @@ ISel::visitAllocaInst (AllocaInst &I)
unsigned int allocatedTypeWords = allocatedTypeSize / 4;
if (allocatedTypeSize % 4 != 0) { allocatedTypeWords++; }
// Subtract size from stack pointer, thereby allocating some space.
BuildMI (BB, X86::SUBri32, 1, X86::ESP).addZImm (allocatedTypeWords * 4);
BuildMI(BB, X86::SUBri32, 2,
X86::ESP).addReg(X86::ESP).addZImm(allocatedTypeWords * 4);
// Put a pointer to the space into the result register, by copying
// the stack pointer.
BuildMI (BB, X86::MOVrr32, 1, getReg (I)).addReg (X86::ESP);