forked from OSchip/llvm-project
132 lines
4.0 KiB
C++
132 lines
4.0 KiB
C++
// RUN: %clang_analyze_cc1 -std=c++11 -analyzer-checker=debug.DumpCFG -analyzer-config cfg-rich-constructors=false %s 2>&1 | FileCheck -check-prefixes=CHECK,WARNINGS %s
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// RUN: %clang_analyze_cc1 -std=c++11 -analyzer-checker=debug.DumpCFG -analyzer-config cfg-rich-constructors=true %s 2>&1 | FileCheck -check-prefixes=CHECK,ANALYZER %s
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// This file tests how we construct two different flavors of the Clang CFG -
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// the CFG used by the Sema analysis-based warnings and the CFG used by the
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// static analyzer. The difference in the behavior is checked via FileCheck
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// prefixes (WARNINGS and ANALYZER respectively). When introducing new analyzer
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// flags, no new run lines should be added - just these flags would go to the
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// respective line depending on where is it turned on and where is it turned
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// off. Feel free to add tests that test only one of the CFG flavors if you're
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// not sure how the other flavor is supposed to work in your case.
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class A {
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public:
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A() {}
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A(int i) {}
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};
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class B : public virtual A {
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public:
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B() {}
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B(int i) : A(i) {}
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};
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class C : public virtual A {
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public:
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C() {}
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C(int i) : A(i) {}
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};
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class TestOrder : public C, public B, public A {
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int i;
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int& r;
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public:
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TestOrder();
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};
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TestOrder::TestOrder()
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: r(i), B(), i(), C() {
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A a;
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}
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class TestControlFlow {
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int x, y, z;
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public:
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TestControlFlow(bool b);
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};
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TestControlFlow::TestControlFlow(bool b)
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: y(b ? 0 : 1)
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, x(0)
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, z(y) {
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int v;
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}
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class TestDelegating {
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int x, z;
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public:
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TestDelegating() : TestDelegating(2, 3) {}
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TestDelegating(int x, int z) : x(x), z(z) {}
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};
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// CHECK: [B2 (ENTRY)]
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// CHECK: Succs (1): B1
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// CHECK: [B1]
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// WARNINGS: 1: (CXXConstructExpr, class A)
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// ANALYZER: 1: (CXXConstructExpr, A() (Base initializer), class A)
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// CHECK: 2: A([B1.1]) (Base initializer)
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// WARNINGS: 3: (CXXConstructExpr, class C)
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// ANALYZER: 3: (CXXConstructExpr, C() (Base initializer), class C)
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// CHECK: 4: C([B1.3]) (Base initializer)
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// WARNINGS: 5: (CXXConstructExpr, class B)
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// ANALYZER: 5: (CXXConstructExpr, B() (Base initializer), class B)
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// CHECK: 6: B([B1.5]) (Base initializer)
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// WARNINGS: 7: (CXXConstructExpr, class A)
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// ANALYZER: 7: (CXXConstructExpr, A() (Base initializer), class A)
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// CHECK: 8: A([B1.7]) (Base initializer)
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// CHECK: 9: /*implicit*/(int)0
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// CHECK: 10: i([B1.9]) (Member initializer)
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// CHECK: 11: this
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// CHECK: 12: [B1.11]->i
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// CHECK: 13: r([B1.12]) (Member initializer)
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// WARNINGS: 14: (CXXConstructExpr, class A)
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// ANALYZER: 14: (CXXConstructExpr, [B1.15], class A)
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// CHECK: 15: A a;
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// CHECK: Preds (1): B2
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// CHECK: Succs (1): B0
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// CHECK: [B0 (EXIT)]
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// CHECK: Preds (1): B1
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// CHECK: [B5 (ENTRY)]
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// CHECK: Succs (1): B4
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// CHECK: [B1]
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// CHECK: 1: [B4.4] ? [B2.1] : [B3.1]
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// CHECK: 2: y([B1.1]) (Member initializer)
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// CHECK: 3: this
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// CHECK: 4: [B1.3]->y
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// CHECK: 5: [B1.4] (ImplicitCastExpr, LValueToRValue, int)
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// CHECK: 6: z([B1.5]) (Member initializer)
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// CHECK: 7: int v;
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// CHECK: Preds (2): B2 B3
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// CHECK: Succs (1): B0
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// CHECK: [B2]
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// CHECK: 1: 0
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// CHECK: Preds (1): B4
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// CHECK: Succs (1): B1
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// CHECK: [B3]
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// CHECK: 1: 1
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// CHECK: Preds (1): B4
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// CHECK: Succs (1): B1
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// CHECK: [B4]
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// CHECK: 1: 0
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// CHECK: 2: x([B4.1]) (Member initializer)
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// CHECK: 3: b
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// CHECK: 4: [B4.3] (ImplicitCastExpr, LValueToRValue, _Bool)
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// CHECK: T: [B4.4] ? ... : ...
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// CHECK: Preds (1): B5
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// CHECK: Succs (2): B2 B3
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// CHECK: [B0 (EXIT)]
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// CHECK: Preds (1): B1
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// CHECK: [B2 (ENTRY)]
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// CHECK: Succs (1): B1
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// CHECK: [B1]
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// CHECK: 1: 2
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// CHECK: 2: 3
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// WARNINGS: 3: [B1.1], [B1.2] (CXXConstructExpr, class TestDelegating)
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// ANALYZER: 3: [B1.1], [B1.2] (CXXConstructExpr, TestDelegating([B1.1], [B1.2]) (Delegating initializer), class TestDelegating)
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// CHECK: 4: TestDelegating([B1.3]) (Delegating initializer)
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// CHECK: Preds (1): B2
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// CHECK: Succs (1): B0
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// CHECK: [B0 (EXIT)]
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// CHECK: Preds (1): B1
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