[all-commits] [llvm/llvm-project] 63dc31: Reapply [IR] Avoid creating icmp/fcmp constant exp...

[Nikita Popov via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 63dc31b68b78bc0e5deef21b98cab72de997c471
      https://github.com/llvm/llvm-project/commit/63dc31b68b78bc0e5deef21b98cab72de997c471
  Author: Nikita Popov <npopov at redhat.com>
  Date:   2024-05-31 (Fri, 31 May 2024)

  Changed paths:
    M clang/test/Analysis/builtin_signbit.cpp
    M clang/test/CodeGen/catch-nullptr-and-nonzero-offset.c
    M clang/test/CodeGen/constantexpr-fneg.c
    M clang/test/CodeGenCXX/cxx11-thread-local.cpp
    M clang/test/CodeGenCXX/ubsan-nullability-arg.cpp
    M clang/test/CodeGenCXX/weak-external.cpp
    M clang/test/Driver/linker-wrapper-image.c
    M clang/test/OpenMP/threadprivate_codegen.cpp
    M llvm/include/llvm/Analysis/TargetFolder.h
    M llvm/include/llvm/IR/ConstantFolder.h
    M llvm/lib/Analysis/ConstantFolding.cpp
    M llvm/lib/IR/ConstantFold.cpp
    M llvm/test/Assembler/ConstantExprFold.ll
    M llvm/test/Assembler/ConstantExprNoFold.ll
    M llvm/test/Assembler/vector-cmp.ll
    M llvm/test/CodeGen/AMDGPU/lower-ctor-dtor-constexpr-alias.ll
    M llvm/test/CodeGen/AMDGPU/lower-ctor-dtor.ll
    M llvm/test/CodeGen/AMDGPU/lower-multiple-ctor-dtor.ll
    M llvm/test/Instrumentation/MemorySanitizer/check-constant-shadow.ll
    M llvm/test/Instrumentation/SanitizerBinaryMetadata/atomics.ll
    M llvm/test/Transforms/Attributor/value-simplify.ll
    M llvm/test/Transforms/InstCombine/binop-select-cast-of-select-cond.ll
    M llvm/test/Transforms/InstCombine/constant-fold-address-space-pointer.ll
    M llvm/test/Transforms/InstCombine/getelementptr.ll
    M llvm/test/Transforms/InstCombine/hoist-xor-by-constant-from-xor-by-value.ll
    M llvm/test/Transforms/InstCombine/pr33453.ll
    M llvm/test/Transforms/InstCombine/pr83947.ll
    M llvm/test/Transforms/InstCombine/rem.ll
    M llvm/test/Transforms/InstCombine/select-and-or.ll
    M llvm/test/Transforms/InstCombine/select-safe-transforms.ll
    M llvm/test/Transforms/InstSimplify/ConstProp/bitcast.ll
    M llvm/test/Transforms/InstSimplify/ConstProp/icmp-global.ll
    M llvm/test/Transforms/InstSimplify/bitcast-vector-fold.ll
    M llvm/test/Transforms/InstSimplify/compare.ll
    M llvm/test/Transforms/InstSimplify/past-the-end.ll
    M llvm/test/Transforms/JumpThreading/constant-fold-status.ll
    M llvm/test/Transforms/LowerTypeTests/cfi-direct-call1.ll
    M llvm/test/Transforms/LowerTypeTests/function-weak.ll
    M llvm/test/Transforms/SCCP/conditions-ranges.ll
    M llvm/test/Transforms/SimplifyCFG/phi-to-select-constexpr-icmp.ll

  Log Message:
  -----------
  Reapply [IR] Avoid creating icmp/fcmp constant expressions (#92885)

Reapply after https://github.com/llvm/llvm-project/pull/93548,
which should address the lldb failure on macos.

-----

Do not create icmp/fcmp constant expressions in IRBuilder etc anymore,
i.e. treat them as "undesirable". This is in preparation for removing
them entirely.

Part of:
https://discourse.llvm.org/t/rfc-remove-most-constant-expressions/63179



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