modified the testcase.
http://reviews.llvm.org/D2498
Files:
llvm/tools/clang/lib/CodeGen/CGDebugInfo.cpp
llvm/tools/clang/lib/CodeGen/CGDebugInfo.h
llvm/tools/clang/lib/CodeGen/CGExprScalar.cpp
llvm/tools/clang/test/CodeGen/Debug-info-explicitcast.c
Index: llvm/tools/clang/lib/CodeGen/CGDebugInfo.h
===================================================================
--- llvm/tools/clang/lib/CodeGen/CGDebugInfo.h
+++ llvm/tools/clang/lib/CodeGen/CGDebugInfo.h
@@ -283,6 +283,9 @@
/// \brief - Emit C++ using directive.
void EmitUsingDirective(const UsingDirectiveDecl &UD);
+ /// EmitExplicitCastType - Emit the type explicitly casted to.
+ void EmitExplicitCastType(QualType Ty);
+
/// \brief - Emit C++ using declaration.
void EmitUsingDecl(const UsingDecl &UD);
Index: llvm/tools/clang/lib/CodeGen/CGDebugInfo.cpp
===================================================================
--- llvm/tools/clang/lib/CodeGen/CGDebugInfo.cpp
+++ llvm/tools/clang/lib/CodeGen/CGDebugInfo.cpp
@@ -3347,3 +3347,11 @@
DBuilder.finalize();
}
+
+void CGDebugInfo::EmitExplicitCastType(QualType Ty) {
+ if (CGM.getCodeGenOpts().getDebugInfo() < CodeGenOptions::LimitedDebugInfo)
+ return;
+ llvm::DIType DieTy = getOrCreateType(Ty, getOrCreateMainFile());
+ // Don't ignore in case of explicit cast where it is referenced indirectly.
+ DBuilder.retainType(DieTy);
+}
Index: llvm/tools/clang/lib/CodeGen/CGExprScalar.cpp
===================================================================
--- llvm/tools/clang/lib/CodeGen/CGExprScalar.cpp
+++ llvm/tools/clang/lib/CodeGen/CGExprScalar.cpp
@@ -274,6 +274,10 @@
Value *VisitExplicitCastExpr(ExplicitCastExpr *E) {
if (E->getType()->isVariablyModifiedType())
CGF.EmitVariablyModifiedType(E->getType());
+
+ if (CGDebugInfo *DI = CGF.getDebugInfo())
+ DI->EmitExplicitCastType(E->getType());
+
return VisitCastExpr(E);
}
Value *VisitCastExpr(CastExpr *E);
Index: llvm/tools/clang/test/CodeGen/Debug-info-explicitcast.c
===================================================================
--- llvm/tools/clang/test/CodeGen/Debug-info-explicitcast.c
+++ llvm/tools/clang/test/CodeGen/Debug-info-explicitcast.c
@@ -0,0 +1,9 @@
+// RUN: %clang_cc1 -emit-llvm -g %s -o - | FileCheck %s
+
+struct S {
+ int i;
+};
+void foo(void *p) { ((struct S *)p)->i++; }
+
+// CHECK: DW_TAG_structure_type ] [S]
+
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