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| author | Dan Gohman <gohman@apple.com> | 2009-06-24 00:30:26 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2009-06-24 00:30:26 +0000 |
| commit | f05118e304be294d811252fea3b4c4ef0f46406d (patch) | |
| tree | f966417c557d1dd801ea36b91cf7b694ab8f7062 /lib/Analysis | |
| parent | a7d79b39bb73115516186a25be15f74099a4f48b (diff) | |
| download | external_llvm-f05118e304be294d811252fea3b4c4ef0f46406d.zip external_llvm-f05118e304be294d811252fea3b4c4ef0f46406d.tar.gz external_llvm-f05118e304be294d811252fea3b4c4ef0f46406d.tar.bz2 | |
Add an isAllOnesValue utility function, similar to isZero and isOne.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74032 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Analysis')
| -rw-r--r-- | lib/Analysis/ScalarEvolution.cpp | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/lib/Analysis/ScalarEvolution.cpp b/lib/Analysis/ScalarEvolution.cpp index 5cbb5fa..6e5dfbb 100644 --- a/lib/Analysis/ScalarEvolution.cpp +++ b/lib/Analysis/ScalarEvolution.cpp @@ -132,6 +132,12 @@ bool SCEV::isOne() const { return false; } +bool SCEV::isAllOnesValue() const { + if (const SCEVConstant *SC = dyn_cast<SCEVConstant>(this)) + return SC->getValue()->isAllOnesValue(); + return false; +} + SCEVCouldNotCompute::SCEVCouldNotCompute() : SCEV(scCouldNotCompute) {} |