From: Devang Patel <dpatel@apple.com>
Date: Fri, 4 Mar 2011 18:54:42 +0000 (+0000)
Subject: Emit a stop point before a call expression so that debugger has some chance of gettin... 
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=79bfb4b564dc3636aae15aafa6340f9430881121;p=clang

Emit a stop point before a call expression so that debugger has some chance of getting some footing when user wants to stop at 2nd bar() in following expression when all function calls are inlined.
  = bar() + ... + bar() + ...

clang keeps track of column numbers, so we could put location entries for all subexpressions but that will significantly bloat debug info in general, but a location for call expression is helpful here.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@127018 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/CodeGen/CGExpr.cpp b/lib/CodeGen/CGExpr.cpp
index 0f9abc7c35..e23d6107c0 100644
--- a/lib/CodeGen/CGExpr.cpp
+++ b/lib/CodeGen/CGExpr.cpp
@@ -15,6 +15,7 @@
 #include "CodeGenModule.h"
 #include "CGCall.h"
 #include "CGCXXABI.h"
+#include "CGDebugInfo.h"
 #include "CGRecordLayout.h"
 #include "CGObjCRuntime.h"
 #include "clang/AST/ASTContext.h"
@@ -1936,6 +1937,12 @@ LValue CodeGenFunction::EmitOpaqueValueLValue(const OpaqueValueExpr *e) {
 
 RValue CodeGenFunction::EmitCallExpr(const CallExpr *E, 
                                      ReturnValueSlot ReturnValue) {
+  if (CGDebugInfo *DI = getDebugInfo()) {
+    DI->setLocation(E->getLocStart());
+    DI->UpdateLineDirectiveRegion(Builder);
+    DI->EmitStopPoint(Builder);
+  }
+
   // Builtins never have block type.
   if (E->getCallee()->getType()->isBlockPointerType())
     return EmitBlockCallExpr(E, ReturnValue);