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[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
2018-02-10 22:04:45 +08:00
// RUN: %clang_cc1 -templight-dump %s 2>&1 | FileCheck %s
template <int N>
struct foo : foo<N - 1> {};
template <>
struct foo<0> {};
// CHECK-LABEL: {{^---$}}
// CHECK: {{^name:[ ]+'foo<2>'$}}
// CHECK: {{^kind:[ ]+TemplateInstantiation$}}
// CHECK: {{^event:[ ]+Begin$}}
// CHECK: {{^orig:[ ]+'.*templight-nested-template-instantiation.cpp:4:8'}}
// CHECK: {{^poi:[ ]+'.*templight-nested-template-instantiation.cpp:84:8'$}}
// CHECK-LABEL: {{^---$}}
// CHECK: {{^name:[ ]+'foo<2>'$}}
// CHECK: {{^kind:[ ]+TemplateInstantiation$}}
// CHECK: {{^event:[ ]+End$}}
// CHECK: {{^orig:[ ]+'.*templight-nested-template-instantiation.cpp:4:8'}}
// CHECK: {{^poi:[ ]+'.*templight-nested-template-instantiation.cpp:84:8'$}}
// CHECK-LABEL: {{^---$}}
// CHECK: {{^name:[ ]+'foo<2>'$}}
// CHECK: {{^kind:[ ]+TemplateInstantiation$}}
// CHECK: {{^event:[ ]+Begin$}}
// CHECK: {{^orig:[ ]+'.*templight-nested-template-instantiation.cpp:4:8'}}
// CHECK: {{^poi:[ ]+'.*templight-nested-template-instantiation.cpp:84:8'$}}
//
// CHECK-LABEL: {{^---$}}
// CHECK: {{^name:[ ]+'foo<1>'$}}
// CHECK: {{^kind:[ ]+TemplateInstantiation$}}
// CHECK: {{^event:[ ]+Begin$}}
// CHECK: {{^orig:[ ]+'.*templight-nested-template-instantiation.cpp:4:8'}}
// CHECK: {{^poi:[ ]+'.*templight-nested-template-instantiation.cpp:4:14'$}}
// CHECK-LABEL: {{^---$}}
// CHECK: {{^name:[ ]+'foo<1>'$}}
// CHECK: {{^kind:[ ]+TemplateInstantiation$}}
// CHECK: {{^event:[ ]+End$}}
// CHECK: {{^orig:[ ]+'.*templight-nested-template-instantiation.cpp:4:8'}}
// CHECK: {{^poi:[ ]+'.*templight-nested-template-instantiation.cpp:4:14'$}}
// CHECK-LABEL: {{^---$}}
// CHECK: {{^name:[ ]+'foo<1>'$}}
// CHECK: {{^kind:[ ]+TemplateInstantiation$}}
// CHECK: {{^event:[ ]+Begin$}}
// CHECK: {{^orig:[ ]+'.*templight-nested-template-instantiation.cpp:4:8'}}
// CHECK: {{^poi:[ ]+'.*templight-nested-template-instantiation.cpp:4:14'$}}
//
// CHECK-LABEL: {{^---$}}
// CHECK: {{^name:[ ]+'foo<0>'$}}
// CHECK: {{^kind:[ ]+Memoization$}}
// CHECK: {{^event:[ ]+Begin$}}
// CHECK: {{^orig:[ ]+'.*templight-nested-template-instantiation.cpp:7:8'}}
// CHECK: {{^poi:[ ]+'.*templight-nested-template-instantiation.cpp:4:14'$}}
// CHECK-LABEL: {{^---$}}
// CHECK: {{^name:[ ]+'foo<0>'$}}
// CHECK: {{^kind:[ ]+Memoization$}}
// CHECK: {{^event:[ ]+End$}}
// CHECK: {{^orig:[ ]+'.*templight-nested-template-instantiation.cpp:7:8'}}
// CHECK: {{^poi:[ ]+'.*templight-nested-template-instantiation.cpp:4:14'$}}
//
// CHECK-LABEL: {{^---$}}
// CHECK: {{^name:[ ]+'foo<1>'$}}
// CHECK: {{^kind:[ ]+TemplateInstantiation$}}
// CHECK: {{^event:[ ]+End$}}
// CHECK: {{^orig:[ ]+'.*templight-nested-template-instantiation.cpp:4:8'}}
// CHECK: {{^poi:[ ]+'.*templight-nested-template-instantiation.cpp:4:14'$}}
// CHECK-LABEL: {{^---$}}
// CHECK: {{^name:[ ]+'foo<1>'$}}
// CHECK: {{^kind:[ ]+Memoization$}}
// CHECK: {{^event:[ ]+Begin$}}
// CHECK: {{^orig:[ ]+'.*templight-nested-template-instantiation.cpp:4:8'}}
// CHECK: {{^poi:[ ]+'.*templight-nested-template-instantiation.cpp:4:14'$}}
// CHECK-LABEL: {{^---$}}
// CHECK: {{^name:[ ]+'foo<1>'$}}
// CHECK: {{^kind:[ ]+Memoization$}}
// CHECK: {{^event:[ ]+End$}}
// CHECK: {{^orig:[ ]+'.*templight-nested-template-instantiation.cpp:4:8'}}
// CHECK: {{^poi:[ ]+'.*templight-nested-template-instantiation.cpp:4:14'$}}
// CHECK-LABEL: {{^---$}}
// CHECK: {{^name:[ ]+'foo<2>'$}}
// CHECK: {{^kind:[ ]+TemplateInstantiation$}}
// CHECK: {{^event:[ ]+End$}}
// CHECK: {{^orig:[ ]+'.*templight-nested-template-instantiation.cpp:4:8'}}
// CHECK: {{^poi:[ ]+'.*templight-nested-template-instantiation.cpp:84:8'$}}
foo<2> x;