[all-commits] [llvm/llvm-project] ec40c8: [ValueTracking] Improve ComputeNumSignBits to hand...

[Owen Anderson via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: ec40c8f6fe8477e22b9a1e5a3140dd3f7b247588
      https://github.com/llvm/llvm-project/commit/ec40c8f6fe8477e22b9a1e5a3140dd3f7b247588
  Author: Owen Anderson <resistor at mac.com>
  Date:   2023-01-03 (Tue, 03 Jan 2023)

  Changed paths:
    M llvm/lib/Analysis/ValueTracking.cpp
    M llvm/test/Transforms/InstCombine/high-bit-signmask-with-trunc.ll
    M llvm/test/Transforms/InstCombine/negated-bitmask.ll
    A llvm/test/Transforms/InstCombine/vector-trunc.ll

  Log Message:
  -----------
  [ValueTracking] Improve ComputeNumSignBits to handle Trunc

Reviewed By: nikic

Differential Revision: https://reviews.llvm.org/D140796