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| author | Matthias Braun <matze@braunis.de> | 2017-04-25 19:44:25 +0000 |
|---|---|---|
| committer | Matthias Braun <matze@braunis.de> | 2017-04-25 19:44:25 +0000 |
| commit | c36a78c3f338f7f4da1db1074211dd748c833675 (patch) | |
| tree | 71796b07737d646ffc1bb407751035426b306020 /llvm/lib/Transforms/Utils | |
| parent | dd21502482a5ab56aa104f572320dff16cae990c (diff) | |
| download | bcm5719-llvm-c36a78c3f338f7f4da1db1074211dd748c833675.tar.gz bcm5719-llvm-c36a78c3f338f7f4da1db1074211dd748c833675.zip | |
SimplifyLibCalls: Fix crash on memset(notmalloc())
rdar://31520787
llvm-svn: 301352
Diffstat (limited to 'llvm/lib/Transforms/Utils')
| -rw-r--r-- | llvm/lib/Transforms/Utils/SimplifyLibCalls.cpp | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/llvm/lib/Transforms/Utils/SimplifyLibCalls.cpp b/llvm/lib/Transforms/Utils/SimplifyLibCalls.cpp index 4818939824e..2640c1f447a 100644 --- a/llvm/lib/Transforms/Utils/SimplifyLibCalls.cpp +++ b/llvm/lib/Transforms/Utils/SimplifyLibCalls.cpp @@ -842,6 +842,9 @@ static Value *foldMallocMemset(CallInst *Memset, IRBuilder<> &B, // Is the inner call really malloc()? Function *InnerCallee = Malloc->getCalledFunction(); + if (!InnerCallee) + return nullptr; + LibFunc Func; if (!TLI.getLibFunc(*InnerCallee, Func) || !TLI.has(Func) || Func != LibFunc_malloc) |
