[llvm] [LV] Add initial support for vectorizing literal struct return values (PR #109833)

[Florian Hahn via llvm-commits]

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@@ -0,0 +1,122 @@
+; REQUIRES: asserts
+; RUN: opt < %s -passes=loop-vectorize,dce,instcombine -force-vector-width=2 -force-vector-interleave=1 -debug-only=loop-vectorize -disable-output -S 2>&1 | FileCheck %s
+
+define void @struct_return_f32_widen(ptr noalias %in, ptr noalias writeonly %out_a, ptr noalias writeonly %out_b) {
+; CHECK-LABEL: LV: Checking a loop in 'struct_return_f32_widen'
+; CHECK:       VPlan 'Initial VPlan for VF={2},UF>=1' {
+; CHECK-NEXT:  Live-in vp<%0> = VF * UF
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fhahn wrote:

Please use patterns for numbered VPValues


https://github.com/llvm/llvm-project/pull/109833