diff options
| author | Jim Grosbach <grosbach@apple.com> | 2009-12-11 20:29:53 +0000 |
|---|---|---|
| committer | Jim Grosbach <grosbach@apple.com> | 2009-12-11 20:29:53 +0000 |
| commit | c8f9e4fdc584c6bf48dc0f42083d05b707024b20 (patch) | |
| tree | 82891b5dd1ae4752d8865d592268ee61853744f5 | |
| parent | 192db0027c2febbc4ebbd7947d38aba369c787f4 (diff) | |
memory barrier instructions by definition have side effects. This prevents the post-RA scheduler from moving them around.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91150 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/Target/ARM/ARMInstrInfo.td | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/Target/ARM/ARMInstrInfo.td b/lib/Target/ARM/ARMInstrInfo.td index 406264b148..786dcfff05 100644 --- a/lib/Target/ARM/ARMInstrInfo.td +++ b/lib/Target/ARM/ARMInstrInfo.td @@ -1574,7 +1574,7 @@ def MOVCCi : AI1<0b1101, (outs GPR:$dst), // // memory barriers protect the atomic sequences -let isPredicable = 0 in { +let isPredicable = 0, hasSideEffects = 1 in { def Int_MemBarrierV7 : AI<(outs), (ins), Pseudo, NoItinerary, "dmb", "", |