debug-CallGraph.cpp
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// RUN: %clang_analyze_cc1 -analyzer-checker=debug.DumpCallGraph %s -fblocks -std=c++14 2>&1 | FileCheck %s
int get5() {
return 5;
}
int add(int val1, int val2) {
return val1 + val2;
}
int test_add() {
return add(10, get5());
}
static void mmm(int y) {
if (y != 0)
y++;
y = y/y;
}
static int foo(int x, int y) {
mmm(y);
if (x != 0)
x++;
return 5/x;
}
void aaa() {
foo(1,2);
}
void bbb(int y) {
int x = (y > 2);
^ {
foo(x, y);
}();
}
void ccc();
void ddd() { ccc(); }
void ccc() {}
void eee();
void eee() {}
void fff() { eee(); }
// This test case tests that forward declaration for the top-level function
// does not affect call graph construction.
void do_nothing() {}
void test_single_call();
void test_single_call() {
do_nothing();
}
namespace SomeNS {
template<typename T>
void templ(T t) {
ccc();
}
template<>
void templ<double>(double t) {
eee();
}
void templUser() {
templ(5);
templ(5.5);
}
}
namespace Lambdas {
void Callee(){}
void f1() {
[](int i) {
Callee();
}(1);
[](auto i) {
Callee();
}(1);
}
}
namespace CallDecl {
void SomeDecl();
void SomeOtherDecl();
void SomeDef() {}
void Caller() {
SomeDecl();
SomeOtherDecl();
}
void SomeOtherDecl() {
SomeDef();
}
}
// CHECK:--- Call graph Dump ---
// CHECK-NEXT: {{Function: < root > calls: get5 add test_add mmm foo aaa < > bbb ddd ccc eee fff do_nothing test_single_call SomeNS::templ SomeNS::templ SomeNS::templUser Lambdas::Callee Lambdas::f1 Lambdas::f1\(\)::\(anonymous class\)::operator\(\) Lambdas::f1\(\)::\(anonymous class\)::operator\(\) CallDecl::SomeDef CallDecl::Caller CallDecl::SomeDecl CallDecl::SomeOtherDecl $}}
// CHECK-NEXT: {{Function: CallDecl::Caller calls: CallDecl::SomeDecl CallDecl::SomeOtherDecl $}}
// CHECK-NEXT: {{Function: CallDecl::SomeOtherDecl calls: CallDecl::SomeDef $}}
// CHECK-NEXT: {{Function: CallDecl::SomeDecl calls: $}}
// CHECK-NEXT: {{Function: CallDecl::SomeDef calls: $}}
// CHECK-NEXT: {{Function: Lambdas::f1 calls: Lambdas::f1\(\)::\(anonymous class\)::operator\(\) Lambdas::f1\(\)::\(anonymous class\)::operator\(\) $}}
// CHECK-NEXT: {{Function: Lambdas::f1\(\)::\(anonymous class\)::operator\(\) calls: Lambdas::Callee $}}
// CHECK-NEXT: {{Function: Lambdas::f1\(\)::\(anonymous class\)::operator\(\) calls: Lambdas::Callee $}}
// CHECK-NEXT: {{Function: Lambdas::Callee calls: $}}
// CHECK-NEXT: {{Function: SomeNS::templUser calls: SomeNS::templ SomeNS::templ $}}
// CHECK-NEXT: {{Function: SomeNS::templ calls: eee $}}
// CHECK-NEXT: {{Function: SomeNS::templ calls: ccc $}}
// CHECK-NEXT: {{Function: test_single_call calls: do_nothing $}}
// CHECK-NEXT: {{Function: do_nothing calls: $}}
// CHECK-NEXT: {{Function: fff calls: eee $}}
// CHECK-NEXT: {{Function: eee calls: $}}
// CHECK-NEXT: {{Function: ddd calls: ccc $}}
// CHECK-NEXT: {{Function: ccc calls: $}}
// CHECK-NEXT: {{Function: bbb calls: < > $}}
// CHECK-NEXT: {{Function: < > calls: foo $}}
// CHECK-NEXT: {{Function: aaa calls: foo $}}
// CHECK-NEXT: {{Function: foo calls: mmm $}}
// CHECK-NEXT: {{Function: mmm calls: $}}
// CHECK-NEXT: {{Function: test_add calls: add get5 $}}
// CHECK-NEXT: {{Function: add calls: $}}
// CHECK-NEXT: {{Function: get5 calls: $}}