[Templight] Template Instantiation Observer
This patch adds a base-class called TemplateInstantiationObserver which gets
notified whenever a template instantiation is entered or exited during
semantic analysis. This is a base class used to implement the template
profiling and debugging tool called
Templight (https://github.com/mikael-s-persson/templight).
The patch also makes a few more changes:
* ActiveTemplateInstantiation class is moved out of the Sema class (so it can be used with inclusion of Sema.h).
* CreateFrontendAction function in front-end utilities is given external linkage (not longer a hidden static function).
* TemplateInstObserverChain data member added to Sema class to hold the list of template-inst observers.
* Notifications to the template-inst observer are added at the key places where templates are instantiated.
Patch by: Abel Sinkovics!
Differential Revision: https://reviews.llvm.org/D5767
llvm-svn: 324808
diff --git a/clang/test/Templight/templight-exception-spec-func.cpp b/clang/test/Templight/templight-exception-spec-func.cpp
new file mode 100644
index 0000000..39a66d0
--- /dev/null
+++ b/clang/test/Templight/templight-exception-spec-func.cpp
@@ -0,0 +1,73 @@
+// RUN: %clang_cc1 -templight-dump -std=c++14 %s 2>&1 | FileCheck %s
+template <bool B>
+void f() noexcept(B) {}
+
+int main()
+{
+
+// CHECK-LABEL: {{^---$}}
+// CHECK: {{^name:[ ]+f$}}
+// CHECK: {{^kind:[ ]+ExplicitTemplateArgumentSubstitution$}}
+// CHECK: {{^event:[ ]+Begin$}}
+// CHECK: {{^orig:[ ]+'.*templight-exception-spec-func.cpp:3:6'}}
+// CHECK: {{^poi:[ ]+'.*templight-exception-spec-func.cpp:72:3'$}}
+// CHECK-LABEL: {{^---$}}
+// CHECK: {{^name:[ ]+f$}}
+// CHECK: {{^kind:[ ]+ExplicitTemplateArgumentSubstitution$}}
+// CHECK: {{^event:[ ]+End$}}
+// CHECK: {{^orig:[ ]+'.*templight-exception-spec-func.cpp:3:6'}}
+// CHECK: {{^poi:[ ]+'.*templight-exception-spec-func.cpp:72:3'$}}
+//
+// CHECK-LABEL: {{^---$}}
+// CHECK: {{^name:[ ]+f$}}
+// CHECK: {{^kind:[ ]+DeducedTemplateArgumentSubstitution$}}
+// CHECK: {{^event:[ ]+Begin$}}
+// CHECK: {{^orig:[ ]+'.*templight-exception-spec-func.cpp:3:6'}}
+// CHECK: {{^poi:[ ]+'.*templight-exception-spec-func.cpp:72:3'$}}
+// CHECK-LABEL: {{^---$}}
+// CHECK: {{^name:[ ]+f$}}
+// CHECK: {{^kind:[ ]+DeducedTemplateArgumentSubstitution$}}
+// CHECK: {{^event:[ ]+End$}}
+// CHECK: {{^orig:[ ]+'.*templight-exception-spec-func.cpp:3:6'}}
+// CHECK: {{^poi:[ ]+'.*templight-exception-spec-func.cpp:72:3'$}}
+//
+// CHECK-LABEL: {{^---$}}
+// CHECK: {{^name:[ ]+'f<false>'$}}
+// CHECK: {{^kind:[ ]+TemplateInstantiation$}}
+// CHECK: {{^event:[ ]+Begin$}}
+// CHECK: {{^orig:[ ]+'.*templight-exception-spec-func.cpp:3:6'}}
+// CHECK: {{^poi:[ ]+'.*templight-exception-spec-func.cpp:72:3'$}}
+// CHECK-LABEL: {{^---$}}
+// CHECK: {{^name:[ ]+'f<false>'$}}
+// CHECK: {{^kind:[ ]+TemplateInstantiation$}}
+// CHECK: {{^event:[ ]+End$}}
+// CHECK: {{^orig:[ ]+'.*templight-exception-spec-func.cpp:3:6'}}
+// CHECK: {{^poi:[ ]+'.*templight-exception-spec-func.cpp:72:3'$}}
+//
+// CHECK-LABEL: {{^---$}}
+// CHECK: {{^name:[ ]+'f<false>'$}}
+// CHECK: {{^kind:[ ]+ExceptionSpecInstantiation$}}
+// CHECK: {{^event:[ ]+Begin$}}
+// CHECK: {{^orig:[ ]+'.*templight-exception-spec-func.cpp:3:6'}}
+// CHECK: {{^poi:[ ]+'.*templight-exception-spec-func.cpp:72:3'$}}
+// CHECK-LABEL: {{^---$}}
+// CHECK: {{^name:[ ]+'f<false>'$}}
+// CHECK: {{^kind:[ ]+ExceptionSpecInstantiation$}}
+// CHECK: {{^event:[ ]+End$}}
+// CHECK: {{^orig:[ ]+'.*templight-exception-spec-func.cpp:3:6'}}
+// CHECK: {{^poi:[ ]+'.*templight-exception-spec-func.cpp:72:3'$}}
+//
+// CHECK-LABEL: {{^---$}}
+// CHECK: {{^name:[ ]+'f<false>'$}}
+// CHECK: {{^kind:[ ]+TemplateInstantiation$}}
+// CHECK: {{^event:[ ]+Begin$}}
+// CHECK: {{^orig:[ ]+'.*templight-exception-spec-func.cpp:3:6'}}
+// CHECK: {{^poi:[ ]+'.*templight-exception-spec-func.cpp:72:3'$}}
+// CHECK-LABEL: {{^---$}}
+// CHECK: {{^name:[ ]+'f<false>'$}}
+// CHECK: {{^kind:[ ]+TemplateInstantiation$}}
+// CHECK: {{^event:[ ]+End$}}
+// CHECK: {{^orig:[ ]+'.*templight-exception-spec-func.cpp:3:6'}}
+// CHECK: {{^poi:[ ]+'.*templight-exception-spec-func.cpp:72:3'$}}
+ f<false>();
+}