[all-commits] [llvm/llvm-project] 159ea0: [VPlan] Strip replicate-region bail in materializi...

[Ramkumar Ramachandra via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 159ea0a9a8a2a765dad1b487e5a1ece0ea48130d
      https://github.com/llvm/llvm-project/commit/159ea0a9a8a2a765dad1b487e5a1ece0ea48130d
  Author: Ramkumar Ramachandra <artagnon at tenstorrent.com>
  Date:   2026-06-25 (Thu, 25 Jun 2026)

  Changed paths:
    M llvm/lib/Transforms/Vectorize/VPlanTransforms.cpp
    M llvm/test/Transforms/LoopVectorize/AArch64/epilog-vectorization-widen-inductions.ll
    M llvm/test/Transforms/LoopVectorize/AArch64/force-target-instruction-cost.ll
    M llvm/test/Transforms/LoopVectorize/AArch64/induction-costs.ll
    M llvm/test/Transforms/LoopVectorize/AArch64/interleave-with-gaps.ll
    M llvm/test/Transforms/LoopVectorize/AArch64/replicating-load-store-costs.ll
    M llvm/test/Transforms/LoopVectorize/AArch64/transform-narrow-interleave-to-widen-memory-with-wide-ops.ll
    M llvm/test/Transforms/LoopVectorize/AArch64/type-shrinkage-insertelt.ll
    M llvm/test/Transforms/LoopVectorize/ARM/gather-cost.ll
    M llvm/test/Transforms/LoopVectorize/RISCV/riscv-vector-reverse.ll
    M llvm/test/Transforms/LoopVectorize/VPlan/AArch64/widen-call-with-intrinsic-or-libfunc.ll
    M llvm/test/Transforms/LoopVectorize/X86/consecutive-ptr-uniforms.ll
    M llvm/test/Transforms/LoopVectorize/X86/cost-conditional-branches.ll
    M llvm/test/Transforms/LoopVectorize/X86/gather_scatter.ll
    M llvm/test/Transforms/LoopVectorize/X86/induction-costs.ll
    M llvm/test/Transforms/LoopVectorize/X86/interleave-ptradd-with-replicated-operand.ll
    M llvm/test/Transforms/LoopVectorize/X86/interleaved-accesses-hoist-load-across-store.ll
    M llvm/test/Transforms/LoopVectorize/X86/parallel-loops.ll
    M llvm/test/Transforms/LoopVectorize/X86/predicated-replicate-feeding-cast.ll
    M llvm/test/Transforms/LoopVectorize/X86/replicating-load-store-costs.ll
    M llvm/test/Transforms/LoopVectorize/X86/strided_load_cost.ll
    M llvm/test/Transforms/LoopVectorize/X86/vplan-native-inner-loop-only.ll
    M llvm/test/Transforms/LoopVectorize/X86/x86-interleaved-accesses-masked-group.ll
    M llvm/test/Transforms/LoopVectorize/X86/x86-interleaved-store-accesses-with-gaps.ll
    M llvm/test/Transforms/LoopVectorize/X86/x86_fp80-vector-store.ll
    M llvm/test/Transforms/LoopVectorize/assume.ll
    M llvm/test/Transforms/LoopVectorize/bsd_regex.ll
    M llvm/test/Transforms/LoopVectorize/byte-type-function-variants.ll
    M llvm/test/Transforms/LoopVectorize/consecutive-ptr-uniforms.ll
    M llvm/test/Transforms/LoopVectorize/dereferenceable-info-from-assumption-constant-size.ll
    M llvm/test/Transforms/LoopVectorize/find-last-iv-sinkable-load.ll
    M llvm/test/Transforms/LoopVectorize/float-induction.ll
    M llvm/test/Transforms/LoopVectorize/forked-pointers.ll
    M llvm/test/Transforms/LoopVectorize/gather-scatter.ll
    M llvm/test/Transforms/LoopVectorize/histograms.ll
    M llvm/test/Transforms/LoopVectorize/hoist-predicated-loads-with-predicated-stores.ll
    M llvm/test/Transforms/LoopVectorize/induction-wrapflags.ll
    M llvm/test/Transforms/LoopVectorize/induction.ll
    M llvm/test/Transforms/LoopVectorize/interleaved-accesses-pred-stores.ll
    M llvm/test/Transforms/LoopVectorize/interleaved-accesses.ll
    M llvm/test/Transforms/LoopVectorize/loop-scalars.ll
    M llvm/test/Transforms/LoopVectorize/narrow-to-single-scalar.ll
    M llvm/test/Transforms/LoopVectorize/non-widenable-intrinsics-outer-loop.ll
    M llvm/test/Transforms/LoopVectorize/optimal-epilog-vectorization.ll
    M llvm/test/Transforms/LoopVectorize/optsize.ll
    M llvm/test/Transforms/LoopVectorize/pointer-induction.ll
    M llvm/test/Transforms/LoopVectorize/pr34681.ll
    M llvm/test/Transforms/LoopVectorize/pr39417-optsize-scevchecks.ll
    M llvm/test/Transforms/LoopVectorize/predicate-switch.ll
    M llvm/test/Transforms/LoopVectorize/preserve-inbounds-gep-with-pointer-casts.ll
    M llvm/test/Transforms/LoopVectorize/reduction-with-invariant-store.ll
    M llvm/test/Transforms/LoopVectorize/scev-predicate-reasoning.ll
    M llvm/test/Transforms/LoopVectorize/shl-shift-amount-out-of-range-scev.ll
    M llvm/test/Transforms/LoopVectorize/single-value-blend-phis.ll
    M llvm/test/Transforms/LoopVectorize/struct-return-replicate.ll
    M llvm/test/Transforms/LoopVectorize/uniform-args-call-variants.ll
    M llvm/test/Transforms/LoopVectorize/uniform_across_vf_induction1.ll
    M llvm/test/Transforms/LoopVectorize/uniform_across_vf_induction1_and.ll
    M llvm/test/Transforms/LoopVectorize/uniform_across_vf_induction1_div_urem.ll
    M llvm/test/Transforms/LoopVectorize/uniform_across_vf_induction1_lshr.ll
    M llvm/test/Transforms/LoopVectorize/uniform_across_vf_induction2.ll
    M llvm/test/Transforms/LoopVectorize/vplan-native-path-inner-loop-with-runtime-checks.ll
    M llvm/test/Transforms/PhaseOrdering/AArch64/hoist-load-from-vector-loop.ll

  Log Message:
  -----------
  [VPlan] Strip replicate-region bail in materializing Unpacks (#203907)

Replicate regions are now removed by VPlanUnroll replicateByVF. The
patch also includes a fix replacing usesScalarValues with
usesFirstLaneOnly.



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