[all-commits] [llvm/llvm-project] 278261: [InstSimplify] Defer to ConstantFold in simplifyIn...

[Ramkumar Ramachandra via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 278261413bbc64fd21d763fdc115420be39cc3b8
      https://github.com/llvm/llvm-project/commit/278261413bbc64fd21d763fdc115420be39cc3b8
  Author: Ramkumar Ramachandra <artagnon at tenstorrent.com>
  Date:   2026-08-01 (Sat, 01 Aug 2026)

  Changed paths:
    M llvm/include/llvm/Analysis/ConstantFolding.h
    M llvm/include/llvm/Analysis/TargetFolder.h
    M llvm/lib/Analysis/ConstantFolding.cpp
    M llvm/lib/Analysis/InstructionSimplify.cpp
    M llvm/test/Transforms/LoopVectorize/RISCV/truncate-to-minimal-bitwidth-cost.ll
    M llvm/test/Transforms/LoopVectorize/X86/funclet.ll
    M llvm/test/Transforms/LoopVectorize/constantfolder.ll
    M llvm/test/Transforms/LoopVectorize/hoist-predicated-loads-with-predicated-stores.ll
    M llvm/test/Transforms/LoopVectorize/interleaved-accesses-requiring-scev-predicates.ll

  Log Message:
  -----------
  [InstSimplify] Defer to ConstantFold in simplifyInstrinsic (#205061)

Defer to ConstantFolding on all-constant operands, in
llvm::simplifyIntrinsic. The patch adds a context-function argument to
ConstantFoldIntrinsic for strictfp information, which is used by a new
canConstantFoldIntrinsic under canConstantFoldCallTo: it was
necessitated by exposing the constant-folder via
llvm::simplifyIntrinsic. The patch only has impact on passes that use
simplifyIntrinsic via InstSimplifyFolder, other than InstCombine, which
already constant-folds intrinsics.



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