[all-commits] [llvm/llvm-project] 485237: [llvm][opt][Transforms] Replacement `calloc` shoul...

[Alex Voicu via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 4852374135773b03c14ba2003be99ed1169dedf4
      https://github.com/llvm/llvm-project/commit/4852374135773b03c14ba2003be99ed1169dedf4
  Author: Alex Voicu <alexandru.voicu at amd.com>
  Date:   2024-10-01 (Tue, 01 Oct 2024)

  Changed paths:
    M llvm/include/llvm/Transforms/Utils/BuildLibCalls.h
    M llvm/lib/Transforms/Scalar/DeadStoreElimination.cpp
    M llvm/lib/Transforms/Utils/BuildLibCalls.cpp
    A llvm/test/Transforms/DeadStoreElimination/malloc-to-calloc-with-nonzero-default-as.ll

  Log Message:
  -----------
  [llvm][opt][Transforms] Replacement `calloc` should match replaced `malloc` (#110524)

Currently DSE unconditionally emits `calloc` as returning a pointer to
AS0. However, this is incorrect for targets that have a non-zero default
AS, as it'd not match the `malloc` signature. This patch addresses that
by piping through the AS for the pointer returned by `malloc` into the
`calloc` insertion call.



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