RPCS3/llvm-mirror
1
0
Fork 0
mirror of https://github.com/RPCS3/llvm-mirror.git synced 2024-10-21 03:53:04 +02:00
Code Issues Projects Releases Wiki Activity

MemorySSA tryOptimizePhi - assert that we've found a DefChainEnd. NFCI.

Browse Source 
Silences static analyzer null dereference warning.

llvm-svn: 373466
This commit is contained in:
Simon Pilgrim 2019-10-02 13:09:04 +00:00
parent a3e4ffc417
commit 9aa8ae4f2b
1 changed files with 1 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
lib/Analysis/MemorySSA.cpp
View File

@ -873,6 +873,7 @@ template <class AliasAnalysisType> class ClobberWalker {
if (!DefChainEnd)
for (auto *MA : def_chain(const_cast<MemoryAccess *>(Target)))
DefChainEnd = MA;
assert(DefChainEnd && "Failed to find dominating phi/liveOnEntry");
// If any of the terminated paths don't dominate the phi we'll try to
// optimize, we need to figure out what they are and quit.