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| author | Tim Northover <tnorthover@apple.com> | 2016-05-27 16:40:27 +0000 |
|---|---|---|
| committer | Tim Northover <tnorthover@apple.com> | 2016-05-27 16:40:27 +0000 |
| commit | 10a1e8b1fe574c6012018bb91a0572a65e8f6779 (patch) | |
| tree | 8278efaf3d2c9514276c50d08c32bf572523d86e /llvm/lib/Transforms/Utils | |
| parent | 11c849c10b5924033af9ab3dd4126ea812cf0794 (diff) | |
| download | bcm5719-llvm-10a1e8b1fe574c6012018bb91a0572a65e8f6779.tar.gz bcm5719-llvm-10a1e8b1fe574c6012018bb91a0572a65e8f6779.zip | |
Vectorizer: track non-fast FP instructions through phis when finding reductions.
When we traced through a phi node looking for floating-point reductions, we
forgot whether we'd ever seen an instruction without fast-math flags (that
would block vectorization). This propagates it through to the end.
llvm-svn: 271015
Diffstat (limited to 'llvm/lib/Transforms/Utils')
| -rw-r--r-- | llvm/lib/Transforms/Utils/LoopUtils.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/llvm/lib/Transforms/Utils/LoopUtils.cpp b/llvm/lib/Transforms/Utils/LoopUtils.cpp index f2f9bae0c8a..e77ab2aad62 100644 --- a/llvm/lib/Transforms/Utils/LoopUtils.cpp +++ b/llvm/lib/Transforms/Utils/LoopUtils.cpp @@ -430,7 +430,7 @@ RecurrenceDescriptor::isRecurrenceInstr(Instruction *I, RecurrenceKind Kind, default: return InstDesc(false, I); case Instruction::PHI: - return InstDesc(I, Prev.getMinMaxKind()); + return InstDesc(I, Prev.getMinMaxKind(), Prev.getUnsafeAlgebraInst()); case Instruction::Sub: case Instruction::Add: return InstDesc(Kind == RK_IntegerAdd, I); |
