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llvm-project/clang/test/Templight/templight-nested-memoization.cpp
Gabor Horvath 207e7b1fa1 [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 14:04:45 +00:00

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// RUN: %clang_cc1 -templight-dump %s 2>&1 | FileCheck %s
template <int N>
struct fib
{
static const int value = fib<N-1>::value + fib<N-2>::value;
};
template <>
struct fib<0>
{
static const int value = 1;
};
template <>
struct fib<1>
{
static const int value = 1;
};
// CHECK-LABEL: {{^---$}}
// CHECK: {{^name:[ ]+'fib<4>'$}}
// CHECK: {{^kind:[ ]+TemplateInstantiation$}}
// CHECK: {{^event:[ ]+Begin$}}
// CHECK: {{^orig:[ ]+'.*templight-nested-memoization.cpp:4:8'}}
// CHECK: {{^poi:[ ]+'.*templight-nested-memoization.cpp:173:8'$}}
// CHECK-LABEL: {{^---$}}
// CHECK: {{^name:[ ]+'fib<4>'$}}
// CHECK: {{^kind:[ ]+TemplateInstantiation$}}
// CHECK: {{^event:[ ]+End$}}
// CHECK: {{^orig:[ ]+'.*templight-nested-memoization.cpp:4:8'}}
// CHECK: {{^poi:[ ]+'.*templight-nested-memoization.cpp:173:8'$}}
// CHECK-LABEL: {{^---$}}
// CHECK: {{^name:[ ]+'fib<4>'$}}
// CHECK: {{^kind:[ ]+TemplateInstantiation$}}
// CHECK: {{^event:[ ]+Begin$}}
// CHECK: {{^orig:[ ]+'.*templight-nested-memoization.cpp:4:8'}}
// CHECK: {{^poi:[ ]+'.*templight-nested-memoization.cpp:173:8'$}}
//
// CHECK-LABEL: {{^---$}}
// CHECK: {{^name:[ ]+'fib<3>'$}}
// CHECK: {{^kind:[ ]+TemplateInstantiation$}}
// CHECK: {{^event:[ ]+Begin$}}
// CHECK: {{^orig:[ ]+'.*templight-nested-memoization.cpp:4:8'}}
// CHECK: {{^poi:[ ]+'.*templight-nested-memoization.cpp:6:28'$}}
// CHECK-LABEL: {{^---$}}
// CHECK: {{^name:[ ]+'fib<3>'$}}
// CHECK: {{^kind:[ ]+TemplateInstantiation$}}
// CHECK: {{^event:[ ]+End$}}
// CHECK: {{^orig:[ ]+'.*templight-nested-memoization.cpp:4:8'}}
// CHECK: {{^poi:[ ]+'.*templight-nested-memoization.cpp:6:28'$}}
// CHECK-LABEL: {{^---$}}
// CHECK: {{^name:[ ]+'fib<3>'$}}
// CHECK: {{^kind:[ ]+TemplateInstantiation$}}
// CHECK: {{^event:[ ]+Begin$}}
// CHECK: {{^orig:[ ]+'.*templight-nested-memoization.cpp:4:8'}}
// CHECK: {{^poi:[ ]+'.*templight-nested-memoization.cpp:6:28'$}}
//
// CHECK-LABEL: {{^---$}}
// CHECK: {{^name:[ ]+'fib<2>'$}}
// CHECK: {{^kind:[ ]+TemplateInstantiation$}}
// CHECK: {{^event:[ ]+Begin$}}
// CHECK: {{^orig:[ ]+'.*templight-nested-memoization.cpp:4:8'}}
// CHECK: {{^poi:[ ]+'.*templight-nested-memoization.cpp:6:28'$}}
// CHECK-LABEL: {{^---$}}
// CHECK: {{^name:[ ]+'fib<2>'$}}
// CHECK: {{^kind:[ ]+TemplateInstantiation$}}
// CHECK: {{^event:[ ]+End$}}
// CHECK: {{^orig:[ ]+'.*templight-nested-memoization.cpp:4:8'}}
// CHECK: {{^poi:[ ]+'.*templight-nested-memoization.cpp:6:28'$}}
// CHECK-LABEL: {{^---$}}
// CHECK: {{^name:[ ]+'fib<2>'$}}
// CHECK: {{^kind:[ ]+TemplateInstantiation$}}
// CHECK: {{^event:[ ]+Begin$}}
// CHECK: {{^orig:[ ]+'.*templight-nested-memoization.cpp:4:8'}}
// CHECK: {{^poi:[ ]+'.*templight-nested-memoization.cpp:6:28'$}}
// CHECK-LABEL: {{^---$}}
// CHECK: {{^name:[ ]+'fib<1>'$}}
// CHECK: {{^kind:[ ]+Memoization$}}
// CHECK: {{^event:[ ]+Begin$}}
// CHECK: {{^orig:[ ]+'.*templight-nested-memoization.cpp:16:8'}}
// CHECK: {{^poi:[ ]+'.*templight-nested-memoization.cpp:6:28'$}}
// CHECK-LABEL: {{^---$}}
// CHECK: {{^name:[ ]+'fib<1>'$}}
// CHECK: {{^kind:[ ]+Memoization$}}
// CHECK: {{^event:[ ]+End$}}
// CHECK: {{^orig:[ ]+'.*templight-nested-memoization.cpp:16:8'}}
// CHECK: {{^poi:[ ]+'.*templight-nested-memoization.cpp:6:28'$}}
// CHECK-LABEL: {{^---$}}
// CHECK: {{^name:[ ]+'fib<0>'$}}
// CHECK: {{^kind:[ ]+Memoization$}}
// CHECK: {{^event:[ ]+Begin$}}
// CHECK: {{^orig:[ ]+'.*templight-nested-memoization.cpp:10:8'}}
// CHECK: {{^poi:[ ]+'.*templight-nested-memoization.cpp:6:46'$}}
// CHECK-LABEL: {{^---$}}
// CHECK: {{^name:[ ]+'fib<0>'$}}
// CHECK: {{^kind:[ ]+Memoization$}}
// CHECK: {{^event:[ ]+End$}}
// CHECK: {{^orig:[ ]+'.*templight-nested-memoization.cpp:10:8'}}
// CHECK: {{^poi:[ ]+'.*templight-nested-memoization.cpp:6:46'$}}
//
// CHECK-LABEL: {{^---$}}
// CHECK: {{^name:[ ]+'fib<2>'$}}
// CHECK: {{^kind:[ ]+TemplateInstantiation$}}
// CHECK: {{^event:[ ]+End$}}
// CHECK: {{^orig:[ ]+'.*templight-nested-memoization.cpp:4:8'}}
// CHECK: {{^poi:[ ]+'.*templight-nested-memoization.cpp:6:28'$}}
// CHECK-LABEL: {{^---$}}
// CHECK: {{^name:[ ]+'fib<2>'$}}
// CHECK: {{^kind:[ ]+Memoization$}}
// CHECK: {{^event:[ ]+Begin$}}
// CHECK: {{^orig:[ ]+'.*templight-nested-memoization.cpp:4:8'}}
// CHECK: {{^poi:[ ]+'.*templight-nested-memoization.cpp:6:28'$}}
// CHECK-LABEL: {{^---$}}
// CHECK: {{^name:[ ]+'fib<2>'$}}
// CHECK: {{^kind:[ ]+Memoization$}}
// CHECK: {{^event:[ ]+End$}}
// CHECK: {{^orig:[ ]+'.*templight-nested-memoization.cpp:4:8'}}
// CHECK: {{^poi:[ ]+'.*templight-nested-memoization.cpp:6:28'$}}
//
// CHECK-LABEL: {{^---$}}
// CHECK: {{^name:[ ]+'fib<1>'$}}
// CHECK: {{^kind:[ ]+Memoization$}}
// CHECK: {{^event:[ ]+Begin$}}
// CHECK: {{^orig:[ ]+'.*templight-nested-memoization.cpp:16:8'}}
// CHECK: {{^poi:[ ]+'.*templight-nested-memoization.cpp:6:46'$}}
// CHECK-LABEL: {{^---$}}
// CHECK: {{^name:[ ]+'fib<1>'$}}
// CHECK: {{^kind:[ ]+Memoization$}}
// CHECK: {{^event:[ ]+End$}}
// CHECK: {{^orig:[ ]+'.*templight-nested-memoization.cpp:16:8'}}
// CHECK: {{^poi:[ ]+'.*templight-nested-memoization.cpp:6:46'$}}
//
// CHECK-LABEL: {{^---$}}
// CHECK: {{^name:[ ]+'fib<3>'$}}
// CHECK: {{^kind:[ ]+TemplateInstantiation$}}
// CHECK: {{^event:[ ]+End$}}
// CHECK: {{^orig:[ ]+'.*templight-nested-memoization.cpp:4:8'}}
// CHECK: {{^poi:[ ]+'.*templight-nested-memoization.cpp:6:28'$}}
// CHECK-LABEL: {{^---$}}
// CHECK: {{^name:[ ]+'fib<3>'$}}
// CHECK: {{^kind:[ ]+Memoization$}}
// CHECK: {{^event:[ ]+Begin$}}
// CHECK: {{^orig:[ ]+'.*templight-nested-memoization.cpp:4:8'}}
// CHECK: {{^poi:[ ]+'.*templight-nested-memoization.cpp:6:28'$}}
// CHECK-LABEL: {{^---$}}
// CHECK: {{^name:[ ]+'fib<3>'$}}
// CHECK: {{^kind:[ ]+Memoization$}}
// CHECK: {{^event:[ ]+End$}}
// CHECK: {{^orig:[ ]+'.*templight-nested-memoization.cpp:4:8'}}
// CHECK: {{^poi:[ ]+'.*templight-nested-memoization.cpp:6:28'$}}
//
// CHECK-LABEL: {{^---$}}
// CHECK: {{^name:[ ]+'fib<2>'$}}
// CHECK: {{^kind:[ ]+Memoization$}}
// CHECK: {{^event:[ ]+Begin$}}
// CHECK: {{^orig:[ ]+'.*templight-nested-memoization.cpp:4:8'}}
// CHECK: {{^poi:[ ]+'.*templight-nested-memoization.cpp:6:46'$}}
// CHECK-LABEL: {{^---$}}
// CHECK: {{^name:[ ]+'fib<2>'$}}
// CHECK: {{^kind:[ ]+Memoization$}}
// CHECK: {{^event:[ ]+End$}}
// CHECK: {{^orig:[ ]+'.*templight-nested-memoization.cpp:4:8'}}
// CHECK: {{^poi:[ ]+'.*templight-nested-memoization.cpp:6:46'$}}
// CHECK-LABEL: {{^---$}}
//
// CHECK: {{^name:[ ]+'fib<4>'$}}
// CHECK: {{^kind:[ ]+TemplateInstantiation$}}
// CHECK: {{^event:[ ]+End$}}
// CHECK: {{^orig:[ ]+'.*templight-nested-memoization.cpp:4:8'}}
// CHECK: {{^poi:[ ]+'.*templight-nested-memoization.cpp:173:8'$}}
fib<4> x;
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