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| author | Nate Begeman <natebegeman@mac.com> | 2007-11-27 19:28:48 +0000 |
|---|---|---|
| committer | Nate Begeman <natebegeman@mac.com> | 2007-11-27 19:28:48 +0000 |
| commit | 6f026a654c852543ad4d757bcf0804707062ed3d (patch) | |
| tree | 5d60c6731734ea95596bc38c14f06e9bed3f2e55 /llvm/lib/CodeGen/SelectionDAG | |
| parent | b960acebded5b68a847d746fb1d812b29375ee2d (diff) | |
| download | bcm5719-llvm-6f026a654c852543ad4d757bcf0804707062ed3d.tar.gz bcm5719-llvm-6f026a654c852543ad4d757bcf0804707062ed3d.zip | |
Support returning non-power-of-2 vectors to unblock some work
llvm-svn: 44371
Diffstat (limited to 'llvm/lib/CodeGen/SelectionDAG')
| -rw-r--r-- | llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp b/llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp index eadfa1fbb29..2be31c82601 100644 --- a/llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp @@ -364,6 +364,13 @@ unsigned TargetLowering::getVectorTypeBreakdown(MVT::ValueType VT, unsigned NumVectorRegs = 1; + // FIXME: We don't support non-power-of-2-sized vectors for now. Ideally we + // could break down into LHS/RHS like LegalizeDAG does. + if (!isPowerOf2_32(NumElts)) { + NumVectorRegs = NumElts; + NumElts = 1; + } + // Divide the input until we get to a supported size. This will always // end with a scalar if the target doesn't support vectors. while (NumElts > 1 && |
