[all-commits] [llvm/llvm-project] ca5152: [SystemZ] Extend combineGET_CCMASK() to handle a ...

[Jonas Paulsson via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: ca515294879652a46c0e76aaa66f8e415e308b8d
      https://github.com/llvm/llvm-project/commit/ca515294879652a46c0e76aaa66f8e415e308b8d
  Author: Jonas Paulsson <paulsson at linux.vnet.ibm.com>
  Date:   2022-11-23 (Wed, 23 Nov 2022)

  Changed paths:
    M llvm/lib/Target/SystemZ/SystemZISelLowering.cpp
    A llvm/test/CodeGen/SystemZ/int-uadd-multiple-carry-users.ll

  Log Message:
  -----------
  [SystemZ]  Extend combineGET_CCMASK() to handle a truncated SELECT_CCMASK.

In cases where the SELECT_CCMASK has an additional user of the carry, a
truncated SELECT_CCMASK may result as the input to the GET_CCMASK, which need
to be recognized.

Fixes https://github.com/llvm/llvm-project/issues/59054

Reviewed By: Ulrich Weigand

Differential Revision: https://reviews.llvm.org/D138324