Fix JIT disasm for xor reg, reg (dotnet#47980)

macsux · Feb 10, 2021 · 2b95ec6 · 2b95ec6
1 parent a9c5ead
commit 2b95ec6
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/src/coreclr/jit/emitxarch.cpp b/src/coreclr/jit/emitxarch.cpp
@@ -11541,6 +11541,10 @@ BYTE* emitter::emitOutputRR(BYTE* dst, instrDesc* id)
                 {
                     code = AddRexWPrefix(ins, code);
                 }
+                else
+                {
+                    id->idOpSize(EA_4BYTE);
+                }
 
                 // Set the 'w' bit to get the large version
                 code |= 0x1;