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ffcc076a2b
Discovered by a downstream user, we found that the CallGraph ignores callees unless they are defined. This seems foolish, and prevents combining the report with other reports to create unified reports. Additionally, declarations contain information that is likely useful to consumers of the CallGraph. This patch implements this by splitting the includeInGraph function into two versions, the current one plus one that is for callees only. The only difference currently is that includeInGraph checks for a body, then calls includeCalleeInGraph. Differential Revision: https://reviews.llvm.org/D76435
126 lines
3.2 KiB
C++
126 lines
3.2 KiB
C++
// RUN: %clang_analyze_cc1 -analyzer-checker=debug.DumpCallGraph %s -fblocks -std=c++14 2>&1 | FileCheck %s
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int get5() {
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return 5;
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}
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int add(int val1, int val2) {
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return val1 + val2;
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}
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int test_add() {
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return add(10, get5());
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}
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static void mmm(int y) {
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if (y != 0)
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y++;
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y = y/y;
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}
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static int foo(int x, int y) {
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mmm(y);
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if (x != 0)
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x++;
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return 5/x;
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}
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void aaa() {
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foo(1,2);
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}
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void bbb(int y) {
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int x = (y > 2);
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^ {
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foo(x, y);
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}();
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}
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void ccc();
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void ddd() { ccc(); }
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void ccc() {}
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void eee();
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void eee() {}
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void fff() { eee(); }
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// This test case tests that forward declaration for the top-level function
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// does not affect call graph construction.
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void do_nothing() {}
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void test_single_call();
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void test_single_call() {
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do_nothing();
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}
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namespace SomeNS {
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template<typename T>
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void templ(T t) {
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ccc();
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}
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template<>
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void templ<double>(double t) {
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eee();
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}
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void templUser() {
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templ(5);
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templ(5.5);
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}
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}
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namespace Lambdas {
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void Callee(){}
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void f1() {
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[](int i) {
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Callee();
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}(1);
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[](auto i) {
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Callee();
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}(1);
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}
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}
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namespace CallDecl {
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void SomeDecl();
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void SomeOtherDecl();
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void SomeDef() {}
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void Caller() {
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SomeDecl();
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SomeOtherDecl();
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}
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void SomeOtherDecl() {
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SomeDef();
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}
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}
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// CHECK:--- Call graph Dump ---
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// 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 $}}
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// CHECK-NEXT: {{Function: CallDecl::Caller calls: CallDecl::SomeDecl CallDecl::SomeOtherDecl $}}
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// CHECK-NEXT: {{Function: CallDecl::SomeOtherDecl calls: CallDecl::SomeDef $}}
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// CHECK-NEXT: {{Function: CallDecl::SomeDecl calls: $}}
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// CHECK-NEXT: {{Function: CallDecl::SomeDef calls: $}}
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// CHECK-NEXT: {{Function: Lambdas::f1 calls: Lambdas::f1\(\)::\(anonymous class\)::operator\(\) Lambdas::f1\(\)::\(anonymous class\)::operator\(\) $}}
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// CHECK-NEXT: {{Function: Lambdas::f1\(\)::\(anonymous class\)::operator\(\) calls: Lambdas::Callee $}}
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// CHECK-NEXT: {{Function: Lambdas::f1\(\)::\(anonymous class\)::operator\(\) calls: Lambdas::Callee $}}
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// CHECK-NEXT: {{Function: Lambdas::Callee calls: $}}
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// CHECK-NEXT: {{Function: SomeNS::templUser calls: SomeNS::templ SomeNS::templ $}}
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// CHECK-NEXT: {{Function: SomeNS::templ calls: eee $}}
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// CHECK-NEXT: {{Function: SomeNS::templ calls: ccc $}}
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// CHECK-NEXT: {{Function: test_single_call calls: do_nothing $}}
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// CHECK-NEXT: {{Function: do_nothing calls: $}}
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// CHECK-NEXT: {{Function: fff calls: eee $}}
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// CHECK-NEXT: {{Function: eee calls: $}}
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// CHECK-NEXT: {{Function: ddd calls: ccc $}}
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// CHECK-NEXT: {{Function: ccc calls: $}}
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// CHECK-NEXT: {{Function: bbb calls: < > $}}
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// CHECK-NEXT: {{Function: < > calls: foo $}}
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// CHECK-NEXT: {{Function: aaa calls: foo $}}
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// CHECK-NEXT: {{Function: foo calls: mmm $}}
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// CHECK-NEXT: {{Function: mmm calls: $}}
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// CHECK-NEXT: {{Function: test_add calls: add get5 $}}
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// CHECK-NEXT: {{Function: add calls: $}}
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// CHECK-NEXT: {{Function: get5 calls: $}}
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