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authorTed Kremenek <kremenek@apple.com>2011-03-01 23:12:55 +0000
committerTed Kremenek <kremenek@apple.com>2011-03-01 23:12:55 +0000
commite71f3d587844110d836c82250830b27b1651afdb (patch)
tree732e9e5c56ba47ab23ff77d05a76e17c09cee8d4 /lib/StaticAnalyzer/Core/ExprEngine.cpp
parent8a04585eba8a87a660c9030c9cdef34c8c9f85c6 (diff)
Teach CFGBuilder to prune trivially unreachable case statements.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126797 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/StaticAnalyzer/Core/ExprEngine.cpp')
-rw-r--r--lib/StaticAnalyzer/Core/ExprEngine.cpp4
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/StaticAnalyzer/Core/ExprEngine.cpp b/lib/StaticAnalyzer/Core/ExprEngine.cpp
index 615c216b01..95d339ff82 100644
--- a/lib/StaticAnalyzer/Core/ExprEngine.cpp
+++ b/lib/StaticAnalyzer/Core/ExprEngine.cpp
@@ -1043,6 +1043,10 @@ void ExprEngine::processSwitch(SwitchNodeBuilder& builder) {
bool defaultIsFeasible = I == EI;
for ( ; I != EI; ++I) {
+ // Successor may be pruned out during CFG construction.
+ if (!I.getBlock())
+ continue;
+
const CaseStmt* Case = I.getCase();
// Evaluate the LHS of the case value.