getting the pic base has no side effects.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45618 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/X86/X86InstrInfo.td b/lib/Target/X86/X86InstrInfo.td
index 9bd30fe351f7d7ee2c05d825f0b76112aec22b3a..5f641076f00935aaee41ca85419718800e3e0d03 100644 (file)
--- a/lib/Target/X86/X86InstrInfo.td
+++ b/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...