[Coverage] Push a new region when handling CXXTryStmts
Push a new region for the try block and propagate execution counts
through it. This ensures that catch statements get a region counter
distinct from the try block's counter.
llvm-svn: 273463
diff --git a/clang/lib/CodeGen/CoverageMappingGen.cpp b/clang/lib/CodeGen/CoverageMappingGen.cpp
index 12bad4b..b56cd07 100644
--- a/clang/lib/CodeGen/CoverageMappingGen.cpp
+++ b/clang/lib/CodeGen/CoverageMappingGen.cpp
@@ -867,7 +867,12 @@
void VisitCXXTryStmt(const CXXTryStmt *S) {
extendRegion(S);
- Visit(S->getTryBlock());
+ // Handle macros that generate the "try" but not the rest.
+ extendRegion(S->getTryBlock());
+
+ Counter ParentCount = getRegion().getCounter();
+ propagateCounts(ParentCount, S->getTryBlock());
+
for (unsigned I = 0, E = S->getNumHandlers(); I < E; ++I)
Visit(S->getHandler(I));