diff options
| author | Dimitry Andric <dim@FreeBSD.org> | 2019-01-19 10:01:25 +0000 |
|---|---|---|
| committer | Dimitry Andric <dim@FreeBSD.org> | 2019-01-19 10:01:25 +0000 |
| commit | d8e91e46262bc44006913e6796843909f1ac7bcd (patch) | |
| tree | 7d0c143d9b38190e0fa0180805389da22cd834c5 /lib/Transforms/IPO/CalledValuePropagation.cpp | |
| parent | b7eb8e35e481a74962664b63dfb09483b200209a (diff) | |
Notes
Diffstat (limited to 'lib/Transforms/IPO/CalledValuePropagation.cpp')
| -rw-r--r-- | lib/Transforms/IPO/CalledValuePropagation.cpp | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/Transforms/IPO/CalledValuePropagation.cpp b/lib/Transforms/IPO/CalledValuePropagation.cpp index d642445b35de..de62cfc0c1db 100644 --- a/lib/Transforms/IPO/CalledValuePropagation.cpp +++ b/lib/Transforms/IPO/CalledValuePropagation.cpp @@ -345,6 +345,9 @@ private: void visitInst(Instruction &I, DenseMap<CVPLatticeKey, CVPLatticeVal> &ChangedValues, SparseSolver<CVPLatticeKey, CVPLatticeVal> &SS) { + // Simply bail if this instruction has no user. + if (I.use_empty()) + return; auto RegI = CVPLatticeKey(&I, IPOGrouping::Register); ChangedValues[RegI] = getOverdefinedVal(); } |