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| author | Kristof Umann <dkszelethus@gmail.com> | 2019-07-03 11:14:42 +0000 |
|---|---|---|
| committer | Kristof Umann <dkszelethus@gmail.com> | 2019-07-03 11:14:42 +0000 |
| commit | 85211c0835731b37c8a943944b5e6c8165c2d6ab (patch) | |
| tree | 49609703d0e66776c2e35aca13b25280e45ea316 /llvm/lib/Bitcode/Reader/BitcodeReader.cpp | |
| parent | 8df90b843d15c1d60b978609ec05d98921c3e191 (diff) | |
| download | llvm-85211c0835731b37c8a943944b5e6c8165c2d6ab.zip llvm-85211c0835731b37c8a943944b5e6c8165c2d6ab.tar.gz llvm-85211c0835731b37c8a943944b5e6c8165c2d6ab.tar.bz2 | |
[Dominators] PR42041: Skip nullpointer successors
https://bugs.llvm.org/show_bug.cgi?id=42041
In Clang's CFG, we use nullpointers to represent unreachable nodes, for
example, in the included testfile, block B0 is unreachable from block
B1, resulting in a nullpointer dereference somewhere in
llvm::DominatorTreeBase<clang::CFGBlock, false>::recalculate.
This patch fixes this issue by specializing
llvm::DomTreeBuilder::SemiNCAInfo::ChildrenGetter::Get for
clang::CFG to not contain nullpointer successors.
Differential Revision: https://reviews.llvm.org/D62507
llvm-svn: 365026
Diffstat (limited to 'llvm/lib/Bitcode/Reader/BitcodeReader.cpp')
0 files changed, 0 insertions, 0 deletions