[llvm] [X86][APX] Do optimizeMemoryInst for v1X masked load/store (PR #151331)

[Phoebe Wang via llvm-commits]

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@@ -2769,6 +2769,29 @@ bool CodeGenPrepare::optimizeCallInst(CallInst *CI, ModifyDT &ModifiedDT) {
       return optimizeGatherScatterInst(II, II->getArgOperand(0));
     case Intrinsic::masked_scatter:
       return optimizeGatherScatterInst(II, II->getArgOperand(1));
+    case Intrinsic::masked_load:
+      // Treat v1X masked load as load X type.
+      if (auto *VT = dyn_cast<FixedVectorType>(II->getType())) {
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phoebewang wrote:

We have one in llvm/test/CodeGen/X86/isel-sink.ll: https://godbolt.org/z/5zhjr4ses

https://github.com/llvm/llvm-project/pull/151331