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| author | Chris Lattner <sabre@nondot.org> | 2011-01-09 23:02:10 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2011-01-09 23:02:10 +0000 |
| commit | 67f82314affd8c1f564e7502b34e85d53ef6161c (patch) | |
| tree | e7be2f8c7e9ed328cf00f09caa25b3d489762338 /llvm/lib/Analysis/ScalarEvolution.cpp | |
| parent | 28f140a33e61c3bc197bed5279f5d3a975a273a3 (diff) | |
| download | bcm5719-llvm-67f82314affd8c1f564e7502b34e85d53ef6161c.tar.gz bcm5719-llvm-67f82314affd8c1f564e7502b34e85d53ef6161c.zip | |
add a fixme: ir isn't expressive enough.
llvm-svn: 123139
Diffstat (limited to 'llvm/lib/Analysis/ScalarEvolution.cpp')
| -rw-r--r-- | llvm/lib/Analysis/ScalarEvolution.cpp | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/llvm/lib/Analysis/ScalarEvolution.cpp b/llvm/lib/Analysis/ScalarEvolution.cpp index 0c16bbc334c..922751fe3d1 100644 --- a/llvm/lib/Analysis/ScalarEvolution.cpp +++ b/llvm/lib/Analysis/ScalarEvolution.cpp @@ -4863,6 +4863,7 @@ ScalarEvolution::HowFarToZero(const SCEV *V, const Loop *L) { // the stride is. As such, NUW addrec's will always become zero in // "start / -stride" steps, and we know that the division is exact. if (AddRec->hasNoUnsignedWrap()) + // FIXME: We really want an "isexact" bit for udiv. return getUDivExpr(Start, getNegativeSCEV(Step)); // For now we handle only constant steps. |
