Merging r226382:

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r226382 | dblaikie | 2015-01-17 16:12:58 -0800 (Sat, 17 Jan 2015) | 7 lines

DebugInfo: Correct the debug location of non-static data member initializers

This was causing some trouble for otherwise dead code removed in r225085
(reverted in r225361). The location being set for function arguments was
leaking out to the call which wasn't setting its own location (so a
quality bug turned into a crasher with r225085). Fix this so r225085 can
be recommitted.
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git-svn-id: https://llvm.org/svn/llvm-project/cfe/branches/release_36@227859 91177308-0d34-0410-b5e6-96231b3b80d8

3 files changed, 21 insertions, 5 deletions

diff --git a/lib/AST/DeclCXX.cpp b/lib/AST/DeclCXX.cpp
index a6d9d411ee..9af8c4b242 100644
--- a/lib/AST/DeclCXX.cpp
+++ b/lib/AST/DeclCXX.cpp
@@ -1693,12 +1693,12 @@ const Type *CXXCtorInitializer::getBaseClass() const {
 }
 
 SourceLocation CXXCtorInitializer::getSourceLocation() const {
-  if (isAnyMemberInitializer())
-    return getMemberLocation();
-
   if (isInClassMemberInitializer())
     return getAnyMember()->getLocation();
   
+  if (isAnyMemberInitializer())
+    return getMemberLocation();
+
   if (TypeSourceInfo *TSInfo = Initializee.get<TypeSourceInfo*>())
     return TSInfo->getTypeLoc().getLocalSourceRange().getBegin();
   
diff --git a/lib/CodeGen/CGClass.cpp b/lib/CodeGen/CGClass.cpp
index 92c694a76d..d72eda95d7 100644
--- a/lib/CodeGen/CGClass.cpp
+++ b/lib/CodeGen/CGClass.cpp
@@ -544,7 +544,7 @@ static void EmitMemberInitializer(CodeGenFunction &CGF,
                                   CXXCtorInitializer *MemberInit,
                                   const CXXConstructorDecl *Constructor,
                                   FunctionArgList &Args) {
-  ApplyDebugLocation Loc(CGF, MemberInit->getMemberLocation());
+  ApplyDebugLocation Loc(CGF, MemberInit->getSourceLocation());
   assert(MemberInit->isAnyMemberInitializer() &&
          "Must have member initializer!");
   assert(MemberInit->getInit() && "Must have initializer!");
@@ -598,7 +598,6 @@ static void EmitMemberInitializer(CodeGenFunction &CGF,
   ArrayRef<VarDecl *> ArrayIndexes;
   if (MemberInit->getNumArrayIndices())
     ArrayIndexes = MemberInit->getArrayIndexes();
-  ApplyDebugLocation DL(CGF, MemberInit->getMemberLocation());
   CGF.EmitInitializerForField(Field, LHS, MemberInit->getInit(), ArrayIndexes);
 }
 
diff --git a/test/CodeGenCXX/debug-info-line.cpp b/test/CodeGenCXX/debug-info-line.cpp
index a5cc6392b4..cce4a98861 100644
--- a/test/CodeGenCXX/debug-info-line.cpp
+++ b/test/CodeGenCXX/debug-info-line.cpp
@@ -166,6 +166,23 @@ void f13() {
   F13_IMPL;
 }
 
+struct f14 {
+  f14(int);
+};
+
+// CHECK-LABEL: define
+// CHECK-LABEL: define
+// CHECK-LABEL: define
+struct {
+// CHECK: call {{.*}}, !dbg [[DBG_F14_CTOR_CALL:![0-9]*]]
+#line 1600
+  f14 v
+      =
+      1;
+} f14_inst;
+
+// CHECK-LABEL: define
+
 // CHECK: [[DBG_F1]] = !MDLocation(line: 100,
 // CHECK: [[DBG_FOO_VALUE]] = !MDLocation(line: 200,
 // CHECK: [[DBG_FOO_REF]] = !MDLocation(line: 202,