[llvm-branch-commits] [AArch64][GlobalISel] Legalize vector boolean bitcasts to scalars by lowering via stack. (PR #121171)

[Matt Arsenault via llvm-branch-commits]

================
@@ -4663,6 +4664,20 @@ LegalizerHelper::createStackTemporary(TypeSize Bytes, 
Align Alignment,
   return MIRBuilder.buildFrameIndex(FramePtrTy, FrameIdx);
 }
 
+MachineInstrBuilder LegalizerHelper::createStackStoreLoad(Register Val,
+                                                          LLT DstTy) {
+  LLT SrcTy = MRI.getType(Val);
+  Align StackTypeAlign = getStackTemporaryAlignment(SrcTy);
+  MachinePointerInfo PtrInfo;
+  auto StackTemp =
+      createStackTemporary(SrcTy.getSizeInBytes(), StackTypeAlign, PtrInfo);
----------------
arsenm wrote:

Should use the maximum alignment of the src and dest ty 

https://github.com/llvm/llvm-project/pull/121171
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