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-rw-r--r--llvm/lib/Target/X86/X86InstrFMA.td2
1 files changed, 2 insertions, 0 deletions
diff --git a/llvm/lib/Target/X86/X86InstrFMA.td b/llvm/lib/Target/X86/X86InstrFMA.td
index d994f5f3ecb..df6c9da6977 100644
--- a/llvm/lib/Target/X86/X86InstrFMA.td
+++ b/llvm/lib/Target/X86/X86InstrFMA.td
@@ -67,6 +67,7 @@ let neverHasSideEffects = 1 in {
defm r132 : fma3p_rm<opc132,
!strconcat(OpcodeStr, "132", PackTy),
MemFrag128, MemFrag256, OpTy128, OpTy256>;
+ let isCommutable = 1 in
defm r231 : fma3p_rm<opc231,
!strconcat(OpcodeStr, "231", PackTy),
MemFrag128, MemFrag256, OpTy128, OpTy256>;
@@ -146,6 +147,7 @@ multiclass fma3s_forms<bits<8> opc132, bits<8> opc213, bits<8> opc231,
let neverHasSideEffects = 1 in {
defm r132 : fma3s_rm<opc132, !strconcat(OpStr, "132", PackTy),
x86memop, RC, OpVT, mem_frag>;
+ let isCommutable = 1 in
defm r231 : fma3s_rm<opc231, !strconcat(OpStr, "231", PackTy),
x86memop, RC, OpVT, mem_frag>;
}
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