getting the pic base has no side effects.

llvm-svn: 45618
2008-01-05 03:54:32 +00:00 · 2008-01-05 03:54:32 +00:00 · 9fa8ae6c6b
parent d11ca169e7
commit 9fa8ae6c6b
1 changed files with 2 additions and 0 deletions
--- a/llvm/lib/Target/X86/X86InstrInfo.td
+++ b/llvm/lib/Target/X86/X86InstrInfo.td
@ -282,8 +282,10 @@ def IMPLICIT_DEF_GR32  : I<0, Pseudo, (outs GR32:$dst), (ins),
 def NOOP : I<0x90, RawFrm, (outs), (ins), "nop", []>;

 // PIC base
+let neverHasSideEffects = 1 in {
 def MOVPC32r : Ii32<0xE8, Pseudo, (outs GR32:$reg), (ins piclabel:$label),
                    "call\t$label\n\tpop{l}\t$reg", []>;
+}

 //===----------------------------------------------------------------------===//
 //  Control Flow Instructions...