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| author | Matt Arsenault <Matthew.Arsenault@amd.com> | 2017-12-29 19:25:53 +0000 |
|---|---|---|
| committer | Matt Arsenault <Matthew.Arsenault@amd.com> | 2017-12-29 19:25:53 +0000 |
| commit | 344c09202b0450c696da6950a59775d2ee96f28d (patch) | |
| tree | 635387f60ab3bde31e7c9ca00120bc734e99f40b /llvm/lib | |
| parent | d41feef40f5fa4e7bdb77adea7c856157758db15 (diff) | |
| download | bcm5719-llvm-344c09202b0450c696da6950a59775d2ee96f28d.tar.gz bcm5719-llvm-344c09202b0450c696da6950a59775d2ee96f28d.zip | |
IR: Fix BasicBlock::phis for empty blocks
llvm-svn: 321567
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/IR/BasicBlock.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/llvm/lib/IR/BasicBlock.cpp b/llvm/lib/IR/BasicBlock.cpp index 22513924a96..938c40182b9 100644 --- a/llvm/lib/IR/BasicBlock.cpp +++ b/llvm/lib/IR/BasicBlock.cpp @@ -264,7 +264,8 @@ const BasicBlock *BasicBlock::getUniqueSuccessor() const { } iterator_range<BasicBlock::phi_iterator> BasicBlock::phis() { - return make_range<phi_iterator>(dyn_cast<PHINode>(&front()), nullptr); + PHINode *P = empty() ? nullptr : dyn_cast<PHINode>(&*begin()); + return make_range<phi_iterator>(P, nullptr); } /// This method is used to notify a BasicBlock that the |
