[all-commits] [llvm/llvm-project] 74aa1a: [InstCombine] Canonicalize scalable GEPs to use ll...

[Nikita Popov via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 74aa1abfaec64e45a402f4601f9c228113fc0bbb
      https://github.com/llvm/llvm-project/commit/74aa1abfaec64e45a402f4601f9c228113fc0bbb
  Author: Nikita Popov <npopov at redhat.com>
  Date:   2024-05-01 (Wed, 01 May 2024)

  Changed paths:
    M clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_ld1-bfloat.c
    M clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_ld1.c
    M clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_ld1sb.c
    M clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_ld1sh.c
    M clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_ld1sw.c
    M clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_ld1ub.c
    M clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_ld1uh.c
    M clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_ld1uw.c
    M clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_st1-bfloat.c
    M clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_st1.c
    M clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_st1b.c
    M clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_st1h.c
    M clang/test/CodeGen/aarch64-sve-intrinsics/acle_sve_st1w.c
    M clang/test/CodeGen/aarch64-sve2p1-intrinsics/acle_sve2p1_ld1.c
    M clang/test/CodeGen/aarch64-sve2p1-intrinsics/acle_sve2p1_ld1_single.c
    M clang/test/CodeGen/aarch64-sve2p1-intrinsics/acle_sve2p1_ldnt1.c
    M clang/test/CodeGen/aarch64-sve2p1-intrinsics/acle_sve2p1_loads.c
    M clang/test/CodeGen/aarch64-sve2p1-intrinsics/acle_sve2p1_st1.c
    M clang/test/CodeGen/aarch64-sve2p1-intrinsics/acle_sve2p1_st1_single.c
    M clang/test/CodeGen/aarch64-sve2p1-intrinsics/acle_sve2p1_stnt1.c
    M clang/test/CodeGen/aarch64-sve2p1-intrinsics/acle_sve2p1_store.c
    M llvm/lib/Transforms/InstCombine/InstructionCombining.cpp
    M llvm/test/Analysis/ValueTracking/phi-known-bits.ll
    M llvm/test/Transforms/InstCombine/gep-vector.ll
    M llvm/test/Transforms/InstCombine/gepofconstgepi8.ll
    M llvm/test/Transforms/InstCombine/icmp-gep.ll
    M llvm/test/Transforms/InstCombine/opaque-ptr.ll
    M llvm/test/Transforms/InstCombine/scalable-vector-array.ll
    M llvm/test/Transforms/InstCombine/vscale_gep.ll

  Log Message:
  -----------
  [InstCombine] Canonicalize scalable GEPs to use llvm.vscale intrinsic (#90569)

Canonicalize getelementptr instructions for scalable vector types into
ptradd representation with an explicit llvm.vscale call. This
representation has better support in BasicAA, which can reason about
llvm.vscale, but not plain scalable GEPs.



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