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| author | Chandler Carruth <chandlerc@gmail.com> | 2014-07-03 07:04:38 +0000 |
|---|---|---|
| committer | Chandler Carruth <chandlerc@gmail.com> | 2014-07-03 07:04:38 +0000 |
| commit | 99b1104c46232eeb0299f09e0998c0e929fe89ce (patch) | |
| tree | 86fa552d4fc8639b14307312ab430412e4940d7f /llvm/lib/CodeGen | |
| parent | 93de4b1608f196e641c44dea839b428cf0fb8cf7 (diff) | |
| download | bcm5719-llvm-99b1104c46232eeb0299f09e0998c0e929fe89ce.tar.gz bcm5719-llvm-99b1104c46232eeb0299f09e0998c0e929fe89ce.zip | |
[x86] Fix the completely broken vector widening legalization of bswap.
This operation was classified as a binary operation in the widening
logic for some reason (clearly, untested). It is in fact a unary
operation. Add a RUN line to a test to exercise this for x86.
Note that again the vector widening strategy doesn't regress anything
and in one case removes a totally unecessary instruction that we
couldn't avoid when promoting the element type.
llvm-svn: 212257
Diffstat (limited to 'llvm/lib/CodeGen')
| -rw-r--r-- | llvm/lib/CodeGen/SelectionDAG/LegalizeVectorTypes.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/LegalizeVectorTypes.cpp b/llvm/lib/CodeGen/SelectionDAG/LegalizeVectorTypes.cpp index f8b1f3e702c..74f8f72c7ab 100644 --- a/llvm/lib/CodeGen/SelectionDAG/LegalizeVectorTypes.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/LegalizeVectorTypes.cpp @@ -1549,7 +1549,6 @@ void DAGTypeLegalizer::WidenVectorResult(SDNode *N, unsigned ResNo) { case ISD::ADD: case ISD::AND: - case ISD::BSWAP: case ISD::MUL: case ISD::MULHS: case ISD::MULHU: @@ -1596,6 +1595,7 @@ void DAGTypeLegalizer::WidenVectorResult(SDNode *N, unsigned ResNo) { Res = WidenVecRes_Convert(N); break; + case ISD::BSWAP: case ISD::CTLZ: case ISD::CTPOP: case ISD::CTTZ: |
