[llvm] [llvm] Optimize MachineMemOperand::getAlign with KnownBits information (PR #143872)

[Acthinks Yang via llvm-commits]

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@@ -1136,7 +1137,20 @@ void MachineMemOperand::refineAlignment(const MachineMemOperand *MMO) {
 /// getAlign - Return the minimum known alignment in bytes of the
 /// actual memory reference.
 Align MachineMemOperand::getAlign() const {
-  return commonAlignment(getBaseAlign(), getOffset());
+  Align RetAlign = commonAlignment(getBaseAlign(), getOffset());
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Acthinks wrote:

Yes, handling it at the IR stage is more reasonable. Thank you!


https://github.com/llvm/llvm-project/pull/143872