AST dumping: dump template instantiations only once
Fixes infinite loop in PR15220.
Patch by Philip Craig.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@175805 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AST/ASTDumper.cpp b/lib/AST/ASTDumper.cpp
index cdc96b6..7401530 100644
--- a/lib/AST/ASTDumper.cpp
+++ b/lib/AST/ASTDumper.cpp
@@ -947,7 +947,10 @@
case TSK_ImplicitInstantiation:
case TSK_ExplicitInstantiationDeclaration:
case TSK_ExplicitInstantiationDefinition:
- dumpDecl(*I);
+ if (D == D->getCanonicalDecl())
+ dumpDecl(*I);
+ else
+ dumpDeclRef(*I);
break;
case TSK_ExplicitSpecialization:
dumpDeclRef(*I);
@@ -973,7 +976,10 @@
switch (I->getTemplateSpecializationKind()) {
case TSK_Undeclared:
case TSK_ImplicitInstantiation:
- dumpDecl(*I);
+ if (D == D->getCanonicalDecl())
+ dumpDecl(*I);
+ else
+ dumpDeclRef(*I);
break;
case TSK_ExplicitSpecialization:
case TSK_ExplicitInstantiationDeclaration: