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| author | Nikita Popov <nikita.ppv@gmail.com> | 2019-02-20 20:41:44 +0000 |
|---|---|---|
| committer | Nikita Popov <nikita.ppv@gmail.com> | 2019-02-20 20:41:44 +0000 |
| commit | c3b496de7abf7d43c870d092a56969a4fee5fa96 (patch) | |
| tree | e02385eb18f6ddb933962c2a2b7944782520b5f2 /llvm/lib/Target | |
| parent | 1e25464fc9b21129dbea14006f07e8611942fe99 (diff) | |
| download | bcm5719-llvm-c3b496de7abf7d43c870d092a56969a4fee5fa96.tar.gz bcm5719-llvm-c3b496de7abf7d43c870d092a56969a4fee5fa96.zip | |
[SDAG] Support vector UMULO/SMULO
Second part of https://bugs.llvm.org/show_bug.cgi?id=40442.
This adds an extra UnrollVectorOverflowOp() method to SDAG, because
the general UnrollOverflowOp() method can't deal with multiple results.
Additionally we need to expand UMULO/SMULO during vector op
legalization, as it may result in unrolling, which may need additional
type legalization.
Differential Revision: https://reviews.llvm.org/D57997
llvm-svn: 354513
Diffstat (limited to 'llvm/lib/Target')
| -rw-r--r-- | llvm/lib/Target/X86/X86ISelLowering.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp index 69c1fa407c0..c99ad480601 100644 --- a/llvm/lib/Target/X86/X86ISelLowering.cpp +++ b/llvm/lib/Target/X86/X86ISelLowering.cpp @@ -20184,6 +20184,8 @@ static SDValue LowerXALUO(SDValue Op, SelectionDAG &DAG) { std::tie(Value, Overflow) = getX86XALUOOp(Cond, Op, DAG); SDValue SetCC = getSETCC(Cond, Overflow, DL, DAG); + if (Op->getValueType(1) != MVT::i8) + SetCC = DAG.getNode(ISD::ZERO_EXTEND, DL, Op->getValueType(1), SetCC); return DAG.getNode(ISD::MERGE_VALUES, DL, Op->getVTList(), Value, SetCC); } |
