[clang] [llvm] [SROA] Vector promote some memsets (PR #133301)

[via llvm-commits]

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@@ -0,0 +1,124 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
+; RUN: opt < %s -passes='sroa' -S | FileCheck %s
+target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-n8:16:32:64"
+
+%ptr_pair = type { ptr, ptr }
+
+%struct.a = type { <32 x i8> }
+define void @vector_promote_memset_a(ptr %0) {
+; CHECK-LABEL: @vector_promote_memset_a(
+; CHECK-NEXT:    [[TMP2:%.*]] = load ptr, ptr [[TMP0:%.*]], align 8
+; CHECK-NEXT:    [[TMP3:%.*]] = load i8, ptr [[TMP2]], align 1
+; CHECK-NEXT:    [[DOTSROA_0_0_VEC_INSERT:%.*]] = insertelement <32 x i8> zeroinitializer, i8 [[TMP3]], i32 0
+; CHECK-NEXT:    ret void
+;
+  %2 = alloca %struct.a, align 32
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macurtis-amd wrote:

Updated to named values.

https://github.com/llvm/llvm-project/pull/133301