[all-commits] [llvm/llvm-project] 12d24e: [CodeGen] Simplify codegen for array initializatio...

[Nikita Popov via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 12d24e0c56a154c88247e55c7c352030e4d9073d
      https://github.com/llvm/llvm-project/commit/12d24e0c56a154c88247e55c7c352030e4d9073d
  Author: Nikita Popov <npopov at redhat.com>
  Date:   2024-06-10 (Mon, 10 Jun 2024)

  Changed paths:
    M clang/lib/CodeGen/CGExprAgg.cpp
    M clang/test/CodeGen/paren-list-agg-init.cpp
    M clang/test/CodeGenCXX/control-flow-in-stmt-expr.cpp
    M clang/test/CodeGenCXX/cxx0x-initializer-references.cpp
    M clang/test/CodeGenCXX/cxx0x-initializer-stdinitializerlist-startend.cpp
    M clang/test/CodeGenCXX/cxx0x-initializer-stdinitializerlist.cpp
    M clang/test/CodeGenCXX/cxx11-initializer-array-new.cpp
    M clang/test/CodeGenCXX/partial-destruction.cpp
    M clang/test/CodeGenCXX/temporaries.cpp
    M clang/test/CodeGenCXX/value-init.cpp
    M clang/test/CodeGenCoroutines/coro-suspend-cleanups.cpp
    M clang/test/CodeGenObjC/arc-ternary-op.m
    M clang/test/CodeGenObjC/arc.m
    M clang/test/CodeGenObjCXX/arc-exceptions.mm
    M clang/test/OpenMP/distribute_firstprivate_codegen.cpp
    M clang/test/OpenMP/distribute_lastprivate_codegen.cpp
    M clang/test/OpenMP/distribute_parallel_for_firstprivate_codegen.cpp
    M clang/test/OpenMP/distribute_parallel_for_lastprivate_codegen.cpp
    M clang/test/OpenMP/distribute_parallel_for_private_codegen.cpp
    M clang/test/OpenMP/distribute_parallel_for_simd_firstprivate_codegen.cpp
    M clang/test/OpenMP/distribute_parallel_for_simd_lastprivate_codegen.cpp
    M clang/test/OpenMP/distribute_parallel_for_simd_private_codegen.cpp
    M clang/test/OpenMP/distribute_private_codegen.cpp
    M clang/test/OpenMP/distribute_simd_firstprivate_codegen.cpp
    M clang/test/OpenMP/distribute_simd_lastprivate_codegen.cpp
    M clang/test/OpenMP/distribute_simd_private_codegen.cpp
    M clang/test/OpenMP/for_firstprivate_codegen.cpp
    M clang/test/OpenMP/for_lastprivate_codegen.cpp
    M clang/test/OpenMP/for_private_codegen.cpp
    M clang/test/OpenMP/for_reduction_codegen.cpp
    M clang/test/OpenMP/for_reduction_codegen_UDR.cpp
    M clang/test/OpenMP/parallel_copyin_codegen.cpp
    M clang/test/OpenMP/parallel_firstprivate_codegen.cpp
    M clang/test/OpenMP/parallel_master_taskloop_firstprivate_codegen.cpp
    M clang/test/OpenMP/parallel_master_taskloop_lastprivate_codegen.cpp
    M clang/test/OpenMP/parallel_master_taskloop_simd_firstprivate_codegen.cpp
    M clang/test/OpenMP/parallel_master_taskloop_simd_lastprivate_codegen.cpp
    M clang/test/OpenMP/parallel_private_codegen.cpp
    M clang/test/OpenMP/parallel_reduction_codegen.cpp
    M clang/test/OpenMP/sections_firstprivate_codegen.cpp
    M clang/test/OpenMP/sections_lastprivate_codegen.cpp
    M clang/test/OpenMP/sections_private_codegen.cpp
    M clang/test/OpenMP/sections_reduction_codegen.cpp
    M clang/test/OpenMP/simd_private_taskloop_codegen.cpp
    M clang/test/OpenMP/single_firstprivate_codegen.cpp
    M clang/test/OpenMP/single_private_codegen.cpp
    M clang/test/OpenMP/target_teams_distribute_firstprivate_codegen.cpp
    M clang/test/OpenMP/target_teams_distribute_lastprivate_codegen.cpp
    M clang/test/OpenMP/target_teams_distribute_parallel_for_firstprivate_codegen.cpp
    M clang/test/OpenMP/target_teams_distribute_parallel_for_lastprivate_codegen.cpp
    M clang/test/OpenMP/target_teams_distribute_parallel_for_private_codegen.cpp
    M clang/test/OpenMP/target_teams_distribute_parallel_for_simd_firstprivate_codegen.cpp
    M clang/test/OpenMP/target_teams_distribute_parallel_for_simd_lastprivate_codegen.cpp
    M clang/test/OpenMP/target_teams_distribute_parallel_for_simd_private_codegen.cpp
    M clang/test/OpenMP/target_teams_distribute_private_codegen.cpp
    M clang/test/OpenMP/target_teams_distribute_simd_firstprivate_codegen.cpp
    M clang/test/OpenMP/target_teams_distribute_simd_lastprivate_codegen.cpp
    M clang/test/OpenMP/target_teams_distribute_simd_private_codegen.cpp
    M clang/test/OpenMP/target_teams_generic_loop_private_codegen.cpp
    M clang/test/OpenMP/teams_distribute_firstprivate_codegen.cpp
    M clang/test/OpenMP/teams_distribute_lastprivate_codegen.cpp
    M clang/test/OpenMP/teams_distribute_parallel_for_firstprivate_codegen.cpp
    M clang/test/OpenMP/teams_distribute_parallel_for_lastprivate_codegen.cpp
    M clang/test/OpenMP/teams_distribute_parallel_for_private_codegen.cpp
    M clang/test/OpenMP/teams_distribute_parallel_for_simd_firstprivate_codegen.cpp
    M clang/test/OpenMP/teams_distribute_parallel_for_simd_lastprivate_codegen.cpp
    M clang/test/OpenMP/teams_distribute_parallel_for_simd_private_codegen.cpp
    M clang/test/OpenMP/teams_distribute_private_codegen.cpp
    M clang/test/OpenMP/teams_distribute_simd_firstprivate_codegen.cpp
    M clang/test/OpenMP/teams_distribute_simd_lastprivate_codegen.cpp
    M clang/test/OpenMP/teams_distribute_simd_private_codegen.cpp
    M clang/test/OpenMP/teams_firstprivate_codegen.cpp
    M clang/test/OpenMP/teams_generic_loop_private_codegen.cpp
    M clang/test/OpenMP/teams_private_codegen.cpp
    M clang/test/OpenMP/threadprivate_codegen.cpp
    M clang/test/PCH/cxx_paren_init.cpp

  Log Message:
  -----------
  [CodeGen] Simplify codegen for array initialization (#93956)

This makes codegen for array initialization simpler in two ways:
1. Drop the zero-index GEP at the start, which is no longer needed with
opaque pointers.
2. Emit GEPs directly to the correct element, instead of having a long
chain of +1 GEPs. This is more canonical, and also avoids regressions in
unoptimized builds from #93823.



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