Keep track of artificial scopes introduced by line directives. For example,
#line 41 "bar.c"
dummy (1, i);
#line 24 "bar.h"
i = f2 (i);
#line 44 "bar.c"
This is tested by step-line.exp in gdb testsuite.
llvm-svn: 109189
diff --git a/clang/lib/CodeGen/CGDebugInfo.h b/clang/lib/CodeGen/CGDebugInfo.h
index ed18a44..fdfd3dc 100644
--- a/clang/lib/CodeGen/CGDebugInfo.h
+++ b/clang/lib/CodeGen/CGDebugInfo.h
@@ -58,6 +58,14 @@
std::vector<llvm::TrackingVH<llvm::MDNode> > RegionStack;
llvm::DenseMap<const Decl *, llvm::WeakVH> RegionMap;
+ // FnBeginRegionCount - Keep track of RegionStack counter at the beginning
+ // of a function. This is used to pop unbalanced regions at the end of a
+ // function.
+ std::vector<unsigned> FnBeginRegionCount;
+
+ /// LineDirectiveFiles - This stack is used to keep track of
+ /// scopes introduced by #line directives.
+ std::vector<const char *> LineDirectiveFiles;
/// DebugInfoNames - This is a storage for names that are
/// constructed on demand. For example, C++ destructors, C++ operators etc..
@@ -134,6 +142,13 @@
void EmitFunctionStart(GlobalDecl GD, QualType FnType,
llvm::Function *Fn, CGBuilderTy &Builder);
+ /// EmitFunctionEnd - Constructs the debug code for exiting a function.
+ void EmitFunctionEnd(CGBuilderTy &Builder);
+
+ /// UpdateLineDirectiveRegion - Update region stack only if #line directive
+ /// has introduced scope change.
+ void UpdateLineDirectiveRegion(CGBuilderTy &Builder);
+
/// EmitRegionStart - Emit a call to llvm.dbg.region.start to indicate start
/// of a new block.
void EmitRegionStart(CGBuilderTy &Builder);