[llvm] [InstCombine][foldPHIArgGEPIntoPHI] Early return for const vector index for gep inst. (PR #138661)

[Nikita Popov via llvm-commits]

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@@ -0,0 +1,43 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5
+; RUN: opt < %s -passes=instcombine -S | FileCheck %s
+
+%vec = type { %vec_base }
+%vec_base = type { [4 x float] }
+%foo = type { %vec, %vec}
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nikic wrote:

It is possible to simplify the GEP type a bit? I don't think you need all of these levels of nesting. All you really need is a struct index using a vector.

https://github.com/llvm/llvm-project/pull/138661