InstrProf: Don't start or end coverage regions inside of system macros
It doesn't make much sense to try to show coverage inside system
macros, and source locations in builtins confuses the coverage
mapping. Just avoid doing this.
Fixes an assert that fired when a __block storage specifier starts a
region.
llvm-svn: 236547
diff --git a/clang/lib/CodeGen/CoverageMappingGen.cpp b/clang/lib/CodeGen/CoverageMappingGen.cpp
index fca1726..65415d9 100644
--- a/clang/lib/CodeGen/CoverageMappingGen.cpp
+++ b/clang/lib/CodeGen/CoverageMappingGen.cpp
@@ -134,18 +134,18 @@
: SM.getIncludeLoc(SM.getFileID(Loc));
}
- /// \brief Get the start of \c S ignoring macro argument locations.
+ /// \brief Get the start of \c S ignoring macro arguments and system macros.
SourceLocation getStart(const Stmt *S) {
SourceLocation Loc = S->getLocStart();
- while (SM.isMacroArgExpansion(Loc))
+ while (SM.isMacroArgExpansion(Loc) || SM.isInSystemMacro(Loc))
Loc = SM.getImmediateExpansionRange(Loc).first;
return Loc;
}
- /// \brief Get the end of \c S ignoring macro argument locations.
+ /// \brief Get the end of \c S ignoring macro arguments and system macros.
SourceLocation getEnd(const Stmt *S) {
SourceLocation Loc = S->getLocEnd();
- while (SM.isMacroArgExpansion(Loc))
+ while (SM.isMacroArgExpansion(Loc) || SM.isInSystemMacro(Loc))
Loc = SM.getImmediateExpansionRange(Loc).first;
return getPreciseTokenLocEnd(Loc);
}