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| author | Benjamin Kramer <benny.kra@googlemail.com> | 2014-04-26 12:06:28 +0000 |
|---|---|---|
| committer | Benjamin Kramer <benny.kra@googlemail.com> | 2014-04-26 12:06:28 +0000 |
| commit | aab6231cd910dcd40217bc9cf73bf72223f2cf30 (patch) | |
| tree | 0b92435c98e99a7f96f9c4b713f503d02bfb1328 /include/llvm/Target/TargetLowering.h | |
| parent | 05e00b6e65f0aa258dd2fe45778fc084cbb93c67 (diff) | |
| download | llvm-aab6231cd910dcd40217bc9cf73bf72223f2cf30.tar.gz llvm-aab6231cd910dcd40217bc9cf73bf72223f2cf30.tar.bz2 llvm-aab6231cd910dcd40217bc9cf73bf72223f2cf30.tar.xz | |
DAGCombiner: Turn divs of vector splats into vectorized multiplications.
Otherwise the legalizer would just scalarize everything. Support for
mulhi in the targets isn't that great yet so on most targets we get
exactly the same scalarized output. Add a test for x86 vector udiv.
I had to disable the mulhi nodes on ARM because there aren't any patterns
for it. As far as I know ARM has instructions for getting the high part of
a multiply so this should be fixed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207315 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'include/llvm/Target/TargetLowering.h')
| -rw-r--r-- | include/llvm/Target/TargetLowering.h | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/include/llvm/Target/TargetLowering.h b/include/llvm/Target/TargetLowering.h index 8dba94fc27..aadfca964a 100644 --- a/include/llvm/Target/TargetLowering.h +++ b/include/llvm/Target/TargetLowering.h @@ -2417,10 +2417,12 @@ public: // SDValue BuildExactSDIV(SDValue Op1, SDValue Op2, SDLoc dl, SelectionDAG &DAG) const; - SDValue BuildSDIV(SDNode *N, SelectionDAG &DAG, bool IsAfterLegalization, - std::vector<SDNode*> *Created) const; - SDValue BuildUDIV(SDNode *N, SelectionDAG &DAG, bool IsAfterLegalization, - std::vector<SDNode*> *Created) const; + SDValue BuildSDIV(SDNode *N, const APInt &Divisor, SelectionDAG &DAG, + bool IsAfterLegalization, + std::vector<SDNode *> *Created) const; + SDValue BuildUDIV(SDNode *N, const APInt &Divisor, SelectionDAG &DAG, + bool IsAfterLegalization, + std::vector<SDNode *> *Created) const; //===--------------------------------------------------------------------===// // Legalization utility functions |