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| author | Vincent Lejeune <vljn@ovi.com> | 2013-12-10 14:43:31 +0000 |
|---|---|---|
| committer | Vincent Lejeune <vljn@ovi.com> | 2013-12-10 14:43:31 +0000 |
| commit | cc0ea74c7b6ede4c91f7bcfdedb5f1a011171c72 (patch) | |
| tree | 06935964ce6aab7043d90d902c1a6bebae15edd3 /llvm/lib/Target/R600/R600ISelLowering.cpp | |
| parent | f92d64d160eb66c12c2fa46e88228cf22c245d49 (diff) | |
| download | bcm5719-llvm-cc0ea74c7b6ede4c91f7bcfdedb5f1a011171c72.tar.gz bcm5719-llvm-cc0ea74c7b6ede4c91f7bcfdedb5f1a011171c72.zip | |
R600: Fix an infinite loop when trying to reorganize export/tex vector input
llvm-svn: 196923
Diffstat (limited to 'llvm/lib/Target/R600/R600ISelLowering.cpp')
| -rw-r--r-- | llvm/lib/Target/R600/R600ISelLowering.cpp | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/llvm/lib/Target/R600/R600ISelLowering.cpp b/llvm/lib/Target/R600/R600ISelLowering.cpp index 1155c2a760a..21a2b0dd170 100644 --- a/llvm/lib/Target/R600/R600ISelLowering.cpp +++ b/llvm/lib/Target/R600/R600ISelLowering.cpp @@ -1442,17 +1442,20 @@ static SDValue ReorganizeVector(SelectionDAG &DAG, SDValue VectorEntry, VectorEntry.getOperand(3) }; bool isUnmovable[4] = { false, false, false, false }; - for (unsigned i = 0; i < 4; i++) + for (unsigned i = 0; i < 4; i++) { RemapSwizzle[i] = i; + if (NewBldVec[i].getOpcode() == ISD::EXTRACT_VECTOR_ELT) { + unsigned Idx = dyn_cast<ConstantSDNode>(NewBldVec[i].getOperand(1)) + ->getZExtValue(); + if (i == Idx) + isUnmovable[Idx] = true; + } + } for (unsigned i = 0; i < 4; i++) { if (NewBldVec[i].getOpcode() == ISD::EXTRACT_VECTOR_ELT) { unsigned Idx = dyn_cast<ConstantSDNode>(NewBldVec[i].getOperand(1)) ->getZExtValue(); - if (i == Idx) { - isUnmovable[Idx] = true; - continue; - } if (isUnmovable[Idx]) continue; // Swap i and Idx |
