[all-commits] [llvm/llvm-project] 707359: Recommit "[LV] Re-use existing broadcast value for...

[Florian Hahn via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 707359ecf59f46032eb7b30176411f05ba252dfa
      https://github.com/llvm/llvm-project/commit/707359ecf59f46032eb7b30176411f05ba252dfa
  Author: Florian Hahn <flo at fhahn.com>
  Date:   2023-08-01 (Tue, 01 Aug 2023)

  Changed paths:
    M llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
    M llvm/test/Transforms/LoopVectorize/AArch64/deterministic-type-shrinkage.ll
    M llvm/test/Transforms/LoopVectorize/AArch64/interleaving-load-store.ll
    M llvm/test/Transforms/LoopVectorize/AArch64/intrinsiccost.ll
    M llvm/test/Transforms/LoopVectorize/AArch64/sve-tail-folding-unroll.ll
    M llvm/test/Transforms/LoopVectorize/ARM/pointer_iv.ll
    M llvm/test/Transforms/LoopVectorize/RISCV/divrem.ll
    M llvm/test/Transforms/LoopVectorize/RISCV/illegal-type.ll
    M llvm/test/Transforms/LoopVectorize/RISCV/uniform-load-store.ll
    M llvm/test/Transforms/LoopVectorize/X86/epilog-vectorization-inductions.ll
    M llvm/test/Transforms/LoopVectorize/X86/intrinsiccost.ll
    M llvm/test/Transforms/LoopVectorize/X86/load-deref-pred.ll
    M llvm/test/Transforms/LoopVectorize/X86/pr54634.ll
    M llvm/test/Transforms/LoopVectorize/first-order-recurrence.ll
    M llvm/test/Transforms/LoopVectorize/float-induction.ll
    M llvm/test/Transforms/LoopVectorize/induction.ll
    M llvm/test/Transforms/LoopVectorize/reduction-inloop-uf4.ll
    M llvm/test/Transforms/LoopVectorize/scalable-first-order-recurrence.ll
    M llvm/test/Transforms/PhaseOrdering/AArch64/hoisting-sinking-required-for-vectorization.ll
    M llvm/test/Transforms/PhaseOrdering/X86/vdiv.ll

  Log Message:
  -----------
  Recommit "[LV] Re-use existing broadcast value for live-ins."

This reverts commit 245ec675a4e41f7ec24dfc998720bffdc46a6c53.

Recommits eea9258648ce with a fix to only erase the instruction from the
first part if it is defined outside the loop. This fixes a
use-after-free error reported.