[codeview] omit debug locations for nested exprs unless column info enabled
Summary:
Microsoft Visual Studio expects debug locations to correspond to
statements. We used to emit locations for expressions nested inside statements.
This would confuse the debugger, causing it to stop multiple times on the
same line and breaking the "step into specific" feature. This change inhibits
the emission of debug locations for nested expressions when emitting CodeView
debug information, unless column information is enabled.
Fixes PR34312.
Reviewers: rnk, zturner
Reviewed By: rnk
Subscribers: majnemer, echristo, aprantl, cfe-commits
Differential Revision: https://reviews.llvm.org/D37529
llvm-svn: 312965
diff --git a/clang/lib/CodeGen/CodeGenModule.h b/clang/lib/CodeGen/CodeGenModule.h
index 235ef31..4bff296 100644
--- a/clang/lib/CodeGen/CodeGenModule.h
+++ b/clang/lib/CodeGen/CodeGenModule.h
@@ -513,6 +513,9 @@
/// Finalize LLVM code generation.
void Release();
+ /// Return true if we should emit location information for expressions.
+ bool getExpressionLocationsEnabled() const;
+
/// Return a reference to the configured Objective-C runtime.
CGObjCRuntime &getObjCRuntime() {
if (!ObjCRuntime) createObjCRuntime();