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| author | Craig Topper <craig.topper@intel.com> | 2020-10-12 23:18:22 -0700 |
|---|---|---|
| committer | Craig Topper <craig.topper@intel.com> | 2020-10-12 23:18:29 -0700 |
| commit | 1687a8d83b702332c4aae4f2a95d27c16688418d (patch) | |
| tree | e41309e1df34fe5798de3c2a4e8c209a8dbb0ea1 /llvm/lib/CodeGen/TargetLoweringBase.cpp | |
| parent | 72c628e83580625ebd9e8521bab03abec4569d14 (diff) | |
| download | llvm-1687a8d83b702332c4aae4f2a95d27c16688418d.zip llvm-1687a8d83b702332c4aae4f2a95d27c16688418d.tar.gz llvm-1687a8d83b702332c4aae4f2a95d27c16688418d.tar.bz2 | |
[X86][SelectionDAG] Add SADDO_CARRY and SSUBO_CARRY to support multipart signed add/sub overflow legalization.
This passes existing X86 test but I'm not sure if it handles all type
legalization cases it needs to.
Alternative to D89200
Reviewed By: efriedma
Differential Revision: https://reviews.llvm.org/D89222
Diffstat (limited to 'llvm/lib/CodeGen/TargetLoweringBase.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/TargetLoweringBase.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/TargetLoweringBase.cpp b/llvm/lib/CodeGen/TargetLoweringBase.cpp index 84ff390..f073416 100644 --- a/llvm/lib/CodeGen/TargetLoweringBase.cpp +++ b/llvm/lib/CodeGen/TargetLoweringBase.cpp @@ -680,6 +680,8 @@ void TargetLoweringBase::initActions() { setOperationAction(ISD::ADDCARRY, VT, Expand); setOperationAction(ISD::SUBCARRY, VT, Expand); setOperationAction(ISD::SETCCCARRY, VT, Expand); + setOperationAction(ISD::SADDO_CARRY, VT, Expand); + setOperationAction(ISD::SSUBO_CARRY, VT, Expand); // ADDC/ADDE/SUBC/SUBE default to expand. setOperationAction(ISD::ADDC, VT, Expand); |