[llvm] b17b25d - [X86] Add In64BitMode requirement for MMXRI

[Haohai Wen via llvm-commits]

Author: Haohai Wen
Date: 2022-11-09T14:08:16+08:00
New Revision: b17b25dde0693adb157f779b069cf89095446db8

URL: https://github.com/llvm/llvm-project/commit/b17b25dde0693adb157f779b069cf89095446db8
DIFF: https://github.com/llvm/llvm-project/commit/b17b25dde0693adb157f779b069cf89095446db8.diff

LOG: [X86] Add In64BitMode requirement for MMXRI

REX_W prefix is only encodable in 64bit.

Reviewed By: skan

Differential Revision: https://reviews.llvm.org/D137686

Added: 
    

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

Removed: 
    


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diff  --git a/llvm/lib/Target/X86/X86InstrFormats.td b/llvm/lib/Target/X86/X86InstrFormats.td
index fce4df76c9fb2..ba0ba8e633288 100644
--- a/llvm/lib/Target/X86/X86InstrFormats.td
+++ b/llvm/lib/Target/X86/X86InstrFormats.td
@@ -1012,7 +1012,8 @@ class MMXI64<bits<8> o, Format F, dag outs, dag ins, string asm,
       : 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]>;