diff options
| author | Dan Gohman <gohman@apple.com> | 2010-08-13 20:23:25 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2010-08-13 20:23:25 +0000 |
| commit | 63c020a21014eb02b3fe0e3ab04e5197c440787d (patch) | |
| tree | 4a5d4c23ad3fdfe004e13610300811f9539f0cc0 /llvm/lib/Analysis/ScalarEvolution.cpp | |
| parent | 3324b9ec67d3fd4e699954fda79eadb9940a51d0 (diff) | |
| download | bcm5719-llvm-63c020a21014eb02b3fe0e3ab04e5197c440787d.tar.gz bcm5719-llvm-63c020a21014eb02b3fe0e3ab04e5197c440787d.zip | |
When testing whether one loop contains another, test this directly
rather than testing whether the loop contains the other's header.
llvm-svn: 111039
Diffstat (limited to 'llvm/lib/Analysis/ScalarEvolution.cpp')
| -rw-r--r-- | llvm/lib/Analysis/ScalarEvolution.cpp | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/llvm/lib/Analysis/ScalarEvolution.cpp b/llvm/lib/Analysis/ScalarEvolution.cpp index 6bb121f82ab..2cf8fff32b0 100644 --- a/llvm/lib/Analysis/ScalarEvolution.cpp +++ b/llvm/lib/Analysis/ScalarEvolution.cpp @@ -2047,9 +2047,9 @@ ScalarEvolution::getAddRecExpr(SmallVectorImpl<const SCEV *> &Operands, // Canonicalize nested AddRecs in by nesting them in order of loop depth. if (const SCEVAddRecExpr *NestedAR = dyn_cast<SCEVAddRecExpr>(Operands[0])) { const Loop *NestedLoop = NestedAR->getLoop(); - if (L->contains(NestedLoop->getHeader()) ? + if (L->contains(NestedLoop) ? (L->getLoopDepth() < NestedLoop->getLoopDepth()) : - (!NestedLoop->contains(L->getHeader()) && + (!NestedLoop->contains(L) && DT->dominates(L->getHeader(), NestedLoop->getHeader()))) { SmallVector<const SCEV *, 4> NestedOperands(NestedAR->op_begin(), NestedAR->op_end()); |
