Merge pull request #7343 from knn-k/aarch64shift0

AArch64: Handle shift amount 0
eclipse · May 23, 2024 · 625d6fb · 625d6fb
2 parents 5faa3ec + 721d05f
commit 625d6fb
Showing 1 changed file with 10 additions and 2 deletions.
diff --git a/compiler/aarch64/codegen/BinaryEvaluator.cpp b/compiler/aarch64/codegen/BinaryEvaluator.cpp
@@ -1576,9 +1576,17 @@ static TR::Register *shiftHelper(TR::Node *node, TR::ARM64ShiftCode shiftType, T
    if (secondOp == TR::iconst)
       {
       int32_t value = secondChild->getInt();
-      if (value == 0 && firstChild->getReferenceCount() == 1)
+      if (value == 0)
          {
-         trgReg = srcReg;
+         if (firstChild->getReferenceCount() == 1)
+            {
+            trgReg = srcReg;
+            }
+         else
+            {
+            trgReg = cg->allocateRegister();
+            generateMovInstruction(cg, node, trgReg, srcReg, is64bit);
+            }
          }
       else
          {