[all-commits] [llvm/llvm-project] 2a1b1f: [GVN] Store source element type for GEP expressions

Nikita Popov via All-commits all-commits at lists.llvm.org
Fri Feb 11 04:03:46 PST 2022

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 2a1b1f1b1be86732ff345c6f6dbad7c64743a0d5
  Author: Nikita Popov <npopov at redhat.com>
  Date:   2022-02-11 (Fri, 11 Feb 2022)

  Changed paths:
    M llvm/lib/Transforms/Scalar/GVN.cpp
    A llvm/test/Transforms/GVN/opaque-ptr.ll

  Log Message:
  [GVN] Store source element type for GEP expressions

To avoid incorrectly merging GEPs with different source types
under opaque pointers.

To avoid increasing the Expression structure size, this reuses the
existing type member. The code does not rely on this to be the
expression result type, it's only used as a disambiguator.

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