Author: evancheng
Date: Thu Jul 26 12:45:41 2007
New Revision: 40538
URL: http://llvm.org/viewvc/llvm-project?rev=40538&view=rev
Log:
Make sure epilogue esp adjustment is placed before any terminator and pop
instructions.
Modified:
llvm/trunk/lib/Target/X86/X86RegisterInfo.cpp
Modified: llvm/trunk/lib/Target/X86/X86RegisterInfo.cpp
URL:
http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86RegisterInfo.cpp?rev=40538&r1=40537&r2=40538&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86RegisterInfo.cpp (original)
+++ llvm/trunk/lib/Target/X86/X86RegisterInfo.cpp Thu Jul 26 12:45:41 2007
@@ -1372,8 +1372,9 @@
// Skip the callee-saved pop instructions.
while (MBBI != MBB.begin()) {
- MachineBasicBlock::iterator PI = prior(MBBI);
- if (PI->getOpcode() != X86::POP32r && PI->getOpcode() != X86::POP64r)
+ MachineBasicBlock::iterator PI = prior(MBBI);
+ unsigned Opc = PI->getOpcode();
+ if (Opc != X86::POP32r && Opc != X86::POP64r &&
!TII.isTerminatorInstr(Opc))
break;
--MBBI;
}
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