SimplifyCFG: Don't assume non-null ScalarTargetTransformInfo.
Patch by Pekka Jääskeläinen!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168176 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/Utils/SimplifyCFG.cpp b/lib/Transforms/Utils/SimplifyCFG.cpp
index 4c14aa6..6c34eed 100644
--- a/lib/Transforms/Utils/SimplifyCFG.cpp
+++ b/lib/Transforms/Utils/SimplifyCFG.cpp
@@ -3539,7 +3539,8 @@
assert(SI->getNumCases() > 1 && "Degenerate switch?");
// Only build lookup table when we have a target that supports it.
- if (!TTI || !TTI->getScalarTargetTransformInfo()->shouldBuildLookupTables())
+ if (!TTI || !TTI->getScalarTargetTransformInfo() ||
+ !TTI->getScalarTargetTransformInfo()->shouldBuildLookupTables())
return false;
// FIXME: If the switch is too sparse for a lookup table, perhaps we could