[PATCH] D137686: [X86] Add In64BitMode requirement for MMXRI

[Haohai, Wen via Phabricator via llvm-commits]

HaohaiWen created this revision.
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REX_W prefix is only encodable in 64bit.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D137686

Files:
  llvm/lib/Target/X86/X86InstrFormats.td


Index: llvm/lib/Target/X86/X86InstrFormats.td
===================================================================
--- llvm/lib/Target/X86/X86InstrFormats.td
+++ llvm/lib/Target/X86/X86InstrFormats.td
@@ -1012,7 +1012,8 @@
       : I<o, F, outs, ins, asm, pattern>, PS, Requires<[HasMMX,In64BitMode]>;
 class MMXRI<bits<8> o, Format F, dag outs, dag ins, string asm,
             list<dag> pattern>
-      : I<o, F, outs, ins, asm, pattern>, PS, REX_W, Requires<[HasMMX]>;
+      : I<o, F, outs, ins, asm, pattern>, PS, REX_W,
+        Requires<[HasMMX,In64BitMode]>;
 class MMX2I<bits<8> o, Format F, dag outs, dag ins, string asm,
             list<dag> pattern>
       : I<o, F, outs, ins, asm, pattern>, PD, Requires<[HasMMX]>;


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