[JIT] ARM64 - Do not allow move and shifting with MSL on 16-bit vecto…

…rs (#77123) * Do not allow move and shifting with MSL on 16-bit vectors * Update src/coreclr/jit/emitarm64.cpp Co-authored-by: Bruce Forstall <[email protected]> Co-authored-by: Bruce Forstall <[email protected]>
dotnet · Oct 19, 2022 · 6c949f5 · 6c949f5
1 parent 10d342c
commit 6c949f5
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/src/coreclr/jit/emitarm64.cpp b/src/coreclr/jit/emitarm64.cpp
@@ -3041,7 +3041,9 @@ emitter::code_t emitter::emitInsCode(instruction ins, insFormat fmt)
             {
                 canEncode = true;
             }
-            if (allow_MSL)
+
+            // MSL is only supported for 32-bit.
+            if (allow_MSL && (size == EA_4BYTE))
             {
                 if ((bySh == 1) && (immCheck == 0xFF))
                 {