[all-commits] [llvm/llvm-project] 897d7b: Revert "[SelectionDAG][Mips][PowerPC][RISCV][WebAs...

[Jessica Clarke via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 897d7bceb90f1ef4807c0f698eaff3c10b471cb9
      https://github.com/llvm/llvm-project/commit/897d7bceb90f1ef4807c0f698eaff3c10b471cb9
  Author: Jessica Clarke <jrtc27 at jrtc27.com>
  Date:   2021-05-05 (Wed, 05 May 2021)

  Changed paths:
    M llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
    M llvm/lib/Target/WebAssembly/WebAssemblyInstrAtomics.td
    M llvm/test/CodeGen/Mips/atomic.ll
    M llvm/test/CodeGen/PowerPC/atomics-i16-ldst.ll
    M llvm/test/CodeGen/PowerPC/atomics-i32-ldst.ll
    M llvm/test/CodeGen/PowerPC/atomics-i64-ldst.ll
    M llvm/test/CodeGen/PowerPC/atomics-i8-ldst.ll
    M llvm/test/CodeGen/RISCV/atomic-signext.ll

  Log Message:
  -----------
  Revert "[SelectionDAG][Mips][PowerPC][RISCV][WebAssembly] Teach computeKnownBits/ComputeNumSignBits about atomics"

This seems to have broken sanitizers, giving lots of

  Assertion `NumBits <= MAX_INT_BITS && "bitwidth too large"' failed.

failures across multiple targets (currently X86 and PowerPC). Reverting
until I have a chance to reproduce and debug.

This reverts commit 6e876f9dedf00b24a96b8781e3b39d5282c43e91.