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| author | Simon Pilgrim <llvm-dev@redking.me.uk> | 2019-01-25 15:58:28 +0000 |
|---|---|---|
| committer | Simon Pilgrim <llvm-dev@redking.me.uk> | 2019-01-25 15:58:28 +0000 |
| commit | f56298f4b9306d038fe415e1f721414bc75fdb57 (patch) | |
| tree | b5baed425f750b67cc769835e5234a454be09dbd /llvm/lib/CodeGen/MachineBasicBlock.cpp | |
| parent | 21aa6ddc1413667516f7b5cc7a6013a9593dd404 (diff) | |
| download | llvm-f56298f4b9306d038fe415e1f721414bc75fdb57.zip llvm-f56298f4b9306d038fe415e1f721414bc75fdb57.tar.gz llvm-f56298f4b9306d038fe415e1f721414bc75fdb57.tar.bz2 | |
[X86] Simplify X86ISD::ADD/SUB if we don't use the result flag
Simplify to the generic ISD::ADD/SUB if we don't make use of the result flag.
This mainly helps with ADDCARRY/SUBBORROW intrinsics which get expanded to X86ISD::ADD/SUB but could be simplified further.
Noticed in some of the test cases in PR31754
Differential Revision: https://reviews.llvm.org/D57234
llvm-svn: 352210
Diffstat (limited to 'llvm/lib/CodeGen/MachineBasicBlock.cpp')
0 files changed, 0 insertions, 0 deletions