[all-commits] [llvm/llvm-project] 01cea7: [InstCombine] extractvalue (any_mul_with_overflow ...

[ZCBing via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 01cea7ac1005a4e31c5328a96ddc6ff39c7df936
      https://github.com/llvm/llvm-project/commit/01cea7ac1005a4e31c5328a96ddc6ff39c7df936
  Author: Chenbing Zheng <Chenbing.Zheng at streamcomputing.com>
  Date:   2022-09-08 (Thu, 08 Sep 2022)

  Changed paths:
    M llvm/lib/Transforms/InstCombine/InstructionCombining.cpp
    M llvm/test/Transforms/InstCombine/with_overflow.ll

  Log Message:
  -----------
  [InstCombine] extractvalue (any_mul_with_overflow X, 2^n), 0 -> X << n

Alive2: https://alive2.llvm.org/ce/z/JLmabt (umul)
        https://alive2.llvm.org/ce/z/J_ruXR  (smul)
        https://alive2.llvm.org/ce/z/o9SVSz (vector)

Reviewed By: spatel, RKSimon

Differential Revision: https://reviews.llvm.org/D133188