[all-commits] [llvm/llvm-project] e9aec1: Reapply "[InstCombine] Merge consecutive assumes" ...

[Nikolas Klauser via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: e9aec194f1e034f7b548240bd76b623d80bac034
      https://github.com/llvm/llvm-project/commit/e9aec194f1e034f7b548240bd76b623d80bac034
  Author: Nikolas Klauser <nikolasklauser at berlin.de>
  Date:   2026-06-23 (Tue, 23 Jun 2026)

  Changed paths:
    M llvm/include/llvm/IR/InstrTypes.h
    M llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp
    M llvm/lib/Transforms/InstCombine/InstructionCombining.cpp
    M llvm/test/Transforms/InstCombine/assume-loop-align.ll
    M llvm/test/Transforms/InstCombine/assume.ll
    M llvm/test/Transforms/PhaseOrdering/AArch64/std-find.ll

  Log Message:
  -----------
  Reapply "[InstCombine] Merge consecutive assumes" (#205177) (#205324)

The crash was caused by using `getOperandBundle` for an assume, which
requires that the operand bundles are unique. This isn't guaranteed by
assume bundles. This patch adds `hasOperandBundle` instead, which
doesn't have the same constraint.

Original message:

This should make assumes a bit more efficient, since it removes a few
instructions. This should also help with optimizations that are
limited in how many instructions they step through.

This reverts commit 3f0ef1efb26206c3f5d5621d86d740c7f466c67b.



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