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[PM] Add an ASCII-art diagram for the call graph in the CGSCC unit test. 

No functionality changed.

llvm-svn: 288013
This commit is contained in:
Chandler Carruth 2016-11-28 03:40:33 +00:00
parent 8e67000f1a
commit 4cf2c89883
1 changed files with 49 additions and 32 deletions
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81
llvm/unittests/Analysis/CGSCCPassManagerTest.cpp
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@ -177,38 +177,55 @@ protected:
public:
CGSCCPassManagerTest()
: FAM(/*DebugLogging*/ true), CGAM(/*DebugLogging*/ true),
MAM(/*DebugLogging*/ true), M(parseIR("define void @f() {\n"
"entry:\n"
" call void @g()\n"
" call void @h1()\n"
" ret void\n"
"}\n"
"define void @g() {\n"
"entry:\n"
" call void @g()\n"
" call void @x()\n"
" ret void\n"
"}\n"
"define void @h1() {\n"
"entry:\n"
" call void @h2()\n"
" ret void\n"
"}\n"
"define void @h2() {\n"
"entry:\n"
" call void @h3()\n"
" call void @x()\n"
" ret void\n"
"}\n"
"define void @h3() {\n"
"entry:\n"
" call void @h1()\n"
" ret void\n"
"}\n"
"define void @x() {\n"
"entry:\n"
" ret void\n"
"}\n")) {
MAM(/*DebugLogging*/ true),
M(parseIR(
// Define a module with the following call graph, where calls go
// out the bottom of nodes and enter the top:
//
// f
// |\ _
// | \ / |
// g h1 |
// | | |
// | h2 |
// | | |
// | h3 |
// | / \_/
// |/
// x
//
"define void @f() {\n"
"entry:\n"
" call void @g()\n"
" call void @h1()\n"
" ret void\n"
"}\n"
"define void @g() {\n"
"entry:\n"
" call void @g()\n"
" call void @x()\n"
" ret void\n"
"}\n"
"define void @h1() {\n"
"entry:\n"
" call void @h2()\n"
" ret void\n"
"}\n"
"define void @h2() {\n"
"entry:\n"
" call void @h3()\n"
" call void @x()\n"
" ret void\n"
"}\n"
"define void @h3() {\n"
"entry:\n"
" call void @h1()\n"
" ret void\n"
"}\n"
"define void @x() {\n"
"entry:\n"
" ret void\n"
"}\n")) {
MAM.registerPass([&] { return LazyCallGraphAnalysis(); });
MAM.registerPass([&] { return FunctionAnalysisManagerModuleProxy(FAM); });
MAM.registerPass([&] { return CGSCCAnalysisManagerModuleProxy(CGAM); });