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| author | Manman Ren <manman.ren@gmail.com> | 2013-09-27 22:59:21 +0000 |
|---|---|---|
| committer | Manman Ren <manman.ren@gmail.com> | 2013-09-27 22:59:21 +0000 |
| commit | e5f32cf3207da58359a6e3aeeb5b01205645f710 (patch) | |
| tree | 7827d7b7a3bebd9baaf0083520284224d173dd57 /lib/Analysis/TypeBasedAliasAnalysis.cpp | |
| parent | 0b15e9893d8dc71127e722d122214d6ec5d89d0e (diff) | |
| download | llvm-e5f32cf3207da58359a6e3aeeb5b01205645f710.tar.gz llvm-e5f32cf3207da58359a6e3aeeb5b01205645f710.tar.bz2 llvm-e5f32cf3207da58359a6e3aeeb5b01205645f710.tar.xz | |
TBAA: try to fix the dragonegg bots.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191585 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Analysis/TypeBasedAliasAnalysis.cpp')
| -rw-r--r-- | lib/Analysis/TypeBasedAliasAnalysis.cpp | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/lib/Analysis/TypeBasedAliasAnalysis.cpp b/lib/Analysis/TypeBasedAliasAnalysis.cpp index ef37bdccbf..9026dc9114 100644 --- a/lib/Analysis/TypeBasedAliasAnalysis.cpp +++ b/lib/Analysis/TypeBasedAliasAnalysis.cpp @@ -326,7 +326,9 @@ TypeBasedAliasAnalysis::getAnalysisUsage(AnalysisUsage &AU) const { /// it as struct-path aware TBAA format, otherwise, we treat it as scalar TBAA /// format. static bool isStructPathTBAA(const MDNode *MD) { - return isa<MDNode>(MD->getOperand(0)); + // Anonymous TBAA root starts with a MDNode and dragonegg uses it as + // a TBAA tag. + return isa<MDNode>(MD->getOperand(0)) && MD->getNumOperands() >= 3; } /// Aliases - Test whether the type represented by A may alias the |