72 lines · cpp
1// RUN: %clang_analyze_cc1 -std=c++14 %s \2// RUN: -analyzer-checker=debug.DumpDominators \3// RUN: -analyzer-checker=debug.DumpPostDominators \4// RUN: -analyzer-checker=debug.DumpControlDependencies \5// RUN: 2>&1 | FileCheck %s6 7bool coin();8 9namespace pr42041_unreachable_cfg_successor {10enum Kind {11 A12};13 14void f() {15 switch(Kind{}) {16 case A:17 break;18 }19}20} // end of namespace pr42041_unreachable_cfg_successor21 22// [B3 (ENTRY)] -> [B1] -> [B2] -> [B0 (EXIT)]23 24// CHECK: Control dependencies (Node#,Dependency#):25// CHECK-NEXT: Immediate dominance tree (Node#,IDom#):26// CHECK-NEXT: (0,2)27// CHECK-NEXT: (1,3)28// CHECK-NEXT: (2,1)29// CHECK-NEXT: (3,3)30// CHECK-NEXT: Immediate post dominance tree (Node#,IDom#):31// CHECK-NEXT: (0,0)32// CHECK-NEXT: (1,2)33// CHECK-NEXT: (2,0)34// CHECK-NEXT: (3,1)35 36void funcWithBranch() {37 int x = 0;38 if (coin()) {39 if (coin()) {40 x = 5;41 }42 int j = 10 / x;43 (void)j;44 }45}46 47// 1st if 2nd if48// [B5 (ENTRY)] -> [B4] -> [B3] -> [B2] -> [B1] -> [B0 (EXIT)]49// \ \ / /50// \ -------------> /51// ------------------------------>52 53// CHECK: Control dependencies (Node#,Dependency#):54// CHECK-NEXT: (1,4)55// CHECK-NEXT: (2,3)56// CHECK-NEXT: (2,4)57// CHECK-NEXT: (3,4)58// CHECK-NEXT: Immediate dominance tree (Node#,IDom#):59// CHECK-NEXT: (0,4)60// CHECK-NEXT: (1,3)61// CHECK-NEXT: (2,3)62// CHECK-NEXT: (3,4)63// CHECK-NEXT: (4,5)64// CHECK-NEXT: (5,5)65// CHECK-NEXT: Immediate post dominance tree (Node#,IDom#):66// CHECK-NEXT: (0,0)67// CHECK-NEXT: (1,0)68// CHECK-NEXT: (2,1)69// CHECK-NEXT: (3,1)70// CHECK-NEXT: (4,0)71// CHECK-NEXT: (5,4)72