1 // RUN: %clang_cc1 -Wno-error=return-type -mllvm -emptyline-comment-coverage=false -fprofile-instrument=clang -fcoverage-mapping -dump-coverage-mapping -emit-llvm-only -std=c++1z -triple %itanium_abi_triple -main-file-name switch.cpp %s | FileCheck %s 2 3 // CHECK: foo 4 void foo(int i) { // CHECK-NEXT: File 0, [[@LINE]]:17 -> [[@LINE+11]]:2 = #0 5 switch(i) { // CHECK-NEXT: Branch,File 0, [[@LINE]]:10 -> [[@LINE]]:11 = (#2 + #3), ((#0 - #2) - #3) 6 // CHECK-NEXT: Gap,File 0, [[@LINE-1]]:13 -> [[@LINE+5]]:10 = 0 7 case 1: // CHECK-NEXT: File 0, [[@LINE]]:3 -> [[@LINE+1]]:11 = #2 8 return; // CHECK-NEXT: Branch,File 0, [[@LINE-1]]:3 -> [[@LINE-1]]:9 = #2, (#0 - #2) 9 // CHECK-NEXT: Gap,File 0, [[@LINE-1]]:12 -> [[@LINE+1]]:3 = 0 10 case 2: // CHECK-NEXT: File 0, [[@LINE]]:3 -> [[@LINE+1]]:10 = #3 11 break; // CHECK-NEXT: Branch,File 0, [[@LINE-1]]:3 -> [[@LINE-1]]:9 = #3, (#0 - #3) 12 13 } // CHECK-NEXT: Gap,File 0, [[@LINE]]:4 -> [[@LINE+1]]:3 = #1 14 int x = 0; // CHECK-NEXT: File 0, [[@LINE]]:3 -> [[@LINE+1]]:2 = #1 15 } 16 17 int nop() { return 0; } 18 19 // CHECK: bar 20 void bar(int i) { // CHECK-NEXT: File 0, [[@LINE]]:17 -> [[@LINE+21]]:2 = #0 21 switch (i) // CHECK-NEXT: Branch,File 0, [[@LINE]]:11 -> [[@LINE]]:12 = 0, #0 22 ; // CHECK-NEXT: File 0, [[@LINE]]:5 -> [[@LINE]]:6 = 0 23 24 switch (i) { // CHECK-NEXT: File 0, [[@LINE]]:3 -> [[@LINE+17]]:2 = #1 25 } // CHECK-NEXT: Branch,File 0, [[@LINE-1]]:11 -> [[@LINE-1]]:12 = 0, #1 26 27 switch (i) // CHECK-NEXT: File 0, [[@LINE]]:3 -> [[@LINE+14]]:2 = #2 28 nop(); // CHECK-NEXT: Branch,File 0, [[@LINE-1]]:11 -> [[@LINE-1]]:12 = 0, #2 29 // CHECK-NEXT: File 0, [[@LINE-1]]:5 -> [[@LINE-1]]:10 = 0 30 switch (i) // CHECK-NEXT: File 0, [[@LINE]]:3 -> [[@LINE+11]]:2 = #3 31 case 1: // CHECK-NEXT: Branch,File 0, [[@LINE-1]]:11 -> [[@LINE-1]]:12 = #5, (#3 - #5) 32 // CHECK-NEXT: File 0, [[@LINE-1]]:3 -> [[@LINE+1]]:10 = #5 33 nop(); // CHECK-NEXT: Branch,File 0, [[@LINE-2]]:3 -> [[@LINE-2]]:9 = #5, (#3 - #5) 34 // CHECK-NEXT: File 0, [[@LINE+1]]:3 -> [[@LINE+7]]:2 = #4 35 switch (i) { // CHECK-NEXT: Branch,File 0, [[@LINE]]:11 -> [[@LINE]]:12 = #7, (#4 - #7) 36 nop(); // CHECK-NEXT: Gap,File 0, [[@LINE-1]]:14 -> [[@LINE+2]]:10 = 0 37 case 1: // CHECK-NEXT: File 0, [[@LINE]]:3 -> [[@LINE+1]]:10 = #7 38 nop(); // CHECK-NEXT: Branch,File 0, [[@LINE-1]]:3 -> [[@LINE-1]]:9 = #7, (#4 - #7) 39 } 40 nop(); // CHECK-NEXT: File 0, [[@LINE]]:3 -> [[@LINE+1]]:2 = #6 41 } 42 43 // CHECK: baz 44 void baz() { // CHECK-NEXT: File 0, [[@LINE]]:12 -> [[@LINE+5]]:2 = #0 45 switch (int i = true ? nop() // CHECK: [[@LINE]]:26 -> [[@LINE]]:31 = #2 46 : nop(); // CHECK-NEXT: [[@LINE]]:26 -> [[@LINE]]:31 = (#0 - #2) 47 i) {} // CHECK-NEXT: Branch,File 0, [[@LINE]]:11 -> [[@LINE]]:12 = 0, #0 48 nop(); // CHECK-NEXT: [[@LINE]]:3 -> [[@LINE+1]]:2 = #1 49 } 50 51 // CHECK-NEXT: main 52 int main() { // CHECK-NEXT: File 0, [[@LINE]]:12 -> [[@LINE+39]]:2 = #0 53 int i = 0; 54 switch(i) { // CHECK-NEXT: Gap,File 0, [[@LINE]]:13 -> [[@LINE+8]]:10 = 0 55 case 0: // CHECK-NEXT: File 0, [[@LINE]]:3 -> [[@LINE+2]]:10 = #2 56 i = 1; // CHECK-NEXT: Branch,File 0, [[@LINE-1]]:3 -> [[@LINE-1]]:9 = #2, (#0 - #2) 57 break; // CHECK-NEXT: Gap,File 0, [[@LINE]]:11 -> [[@LINE+1]]:3 = 0 58 case 1: // CHECK-NEXT: File 0, [[@LINE]]:3 -> [[@LINE+2]]:10 = #3 59 i = 2; // CHECK-NEXT: Branch,File 0, [[@LINE-1]]:3 -> [[@LINE-1]]:9 = #3, (#0 - #3) 60 break; // CHECK-NEXT: Gap,File 0, [[@LINE]]:11 -> [[@LINE+1]]:3 = 0 61 default: // CHECK-NEXT: File 0, [[@LINE]]:3 -> [[@LINE+1]]:10 = #4 62 break; // CHECK-NEXT: Branch,File 0, [[@LINE-1]]:3 -> [[@LINE-1]]:10 = #4, (#0 - #4) 63 } // CHECK-NEXT: Gap,File 0, [[@LINE]]:4 -> [[@LINE+1]]:3 = #1 64 switch(i) { // CHECK-NEXT: File 0, [[@LINE]]:3 -> [[@LINE+27]]:2 = #1 65 case 0: // CHECK-NEXT: Gap,File 0, [[@LINE-1]]:13 -> [[@LINE+7]]:10 = 0 66 i = 1; // CHECK-NEXT: File 0, [[@LINE-1]]:3 -> [[@LINE+1]]:10 = #6 67 break; // CHECK-NEXT: Branch,File 0, [[@LINE-2]]:3 -> [[@LINE-2]]:9 = #6, (#1 - #6) 68 // CHECK-NEXT: Gap,File 0, [[@LINE-1]]:11 -> [[@LINE+1]]:3 = 0 69 case 1: // CHECK-NEXT: File 0, [[@LINE]]:3 -> [[@LINE+3]]:10 = #7 70 i = 2; // CHECK-NEXT: Branch,File 0, [[@LINE-1]]:3 -> [[@LINE-1]]:9 = #7, (#1 - #7) 71 default: // CHECK-NEXT: File 0, [[@LINE]]:3 -> [[@LINE+1]]:10 = (#7 + #8) 72 break; // CHECK-NEXT: Branch,File 0, [[@LINE-1]]:3 -> [[@LINE-1]]:10 = #8, (#1 - #8) 73 } // CHECK-NEXT: Gap,File 0, [[@LINE]]:4 -> [[@LINE+2]]:3 = #5 74 // CHECK-NEXT: File 0, [[@LINE+1]]:3 -> [[@LINE+17]]:2 = #5 75 switch(i) { // CHECK-NEXT: Branch,File 0, [[@LINE]]:10 -> [[@LINE]]:11 = (((#10 + #11) + #12) + #13), ((((#5 - #10) - #11) - #12) - #13) 76 // CHECK-NEXT: Gap,File 0, [[@LINE-1]]:13 -> [[@LINE+8]]:11 = 0 77 case 1: // CHECK-NEXT: File 0, [[@LINE]]:3 -> [[@LINE+7]]:11 = #10 78 // CHECK-NEXT: Branch,File 0, [[@LINE-1]]:3 -> [[@LINE-1]]:9 = #10, (#5 - #10) 79 case 2: // CHECK-NEXT: File 0, [[@LINE]]:3 -> [[@LINE+5]]:11 = (#10 + #11) 80 i = 11; // CHECK-NEXT: Branch,File 0, [[@LINE-1]]:3 -> [[@LINE-1]]:9 = #11, (#5 - #11) 81 case 3: // CHECK-NEXT: File 0, [[@LINE]]:3 -> [[@LINE+3]]:11 = ((#10 + #11) + #12) 82 // CHECK-NEXT: Branch,File 0, [[@LINE-1]]:3 -> [[@LINE-1]]:9 = #12, (#5 - #12) 83 case 4: // CHECK-NEXT: File 0, [[@LINE]]:3 -> [[@LINE+1]]:11 = (((#10 + #11) + #12) + #13) 84 i = 99; // CHECK-NEXT: Branch,File 0, [[@LINE-1]]:3 -> [[@LINE-1]]:9 = #13, (#5 - #13) 85 } 86 87 foo(1); // CHECK-NEXT: File 0, [[@LINE]]:3 -> [[@LINE+3]]:11 = #9 88 bar(1); 89 baz(); 90 return 0; 91 } 92 93 // CHECK: pr44011 94 int pr44011(int i) { // CHECK-NEXT: File 0, [[@LINE]]:20 -> {{.*}}:2 = #0 95 switch (i) { // CHECK-NEXT: Gap,File 0, [[@LINE]]:14 -> [[@LINE+6]]:13 = 0 96 97 case 1: // CHECK-NEXT: File 0, [[@LINE]]:3 -> [[@LINE+1]]:13 = #2 98 return 0; // CHECK-NEXT: Branch,File 0, [[@LINE-1]]:3 -> [[@LINE-1]]:9 = #2, (#0 - #2) 99 // CHECK-NEXT: Gap,File 0, [[@LINE-1]]:14 -> [[@LINE+1]]:3 = 0 100 default: // CHECK-NEXT: File 0, [[@LINE]]:3 -> [[@LINE+1]]:13 = #3 101 return 1; // CHECK-NEXT: Branch,File 0, [[@LINE-1]]:3 -> [[@LINE-1]]:10 = #3, (#0 - #3) 102 } 103 } // A region for counter #1 is missing due to the missing return. 104 105 106 // FIXME: End location for "case 1" shouldn't point at the end of the switch. 107 // CHECK: fallthrough 108 int fallthrough(int i) { // CHECK-NEXT: File 0, [[@LINE]]:24 -> [[@LINE+14]]:2 = #0 109 // CHECK-NEXT: Branch,File 0, [[@LINE+1]]:10 -> [[@LINE+1]]:11 = (((#2 + #3) + #4) + #5), ((((#0 - #2) - #3) - #4) - #5) 110 switch(i) { // CHECK-NEXT: Gap,File 0, [[@LINE]]:13 -> [[@LINE+10]]:10 = 0 111 case 1: // CHECK-NEXT: File 0, [[@LINE]]:3 -> [[@LINE+9]]:10 = #2 112 i = 23; // CHECK-NEXT: Branch,File 0, [[@LINE-1]]:3 -> [[@LINE-1]]:9 = #2, (#0 - #2) 113 case 2: // CHECK-NEXT: File 0, [[@LINE]]:3 -> [[@LINE+2]]:10 = (#2 + #3) 114 i = 11; // CHECK-NEXT: Branch,File 0, [[@LINE-1]]:3 -> [[@LINE-1]]:9 = #3, (#0 - #3) 115 break; // CHECK-NEXT: Gap,File 0, [[@LINE]]:11 -> [[@LINE+1]]:3 = 0 116 case 3: // CHECK-NEXT: File 0, [[@LINE]]:3 -> [[@LINE+4]]:10 = #4 117 // CHECK-NEXT: Branch,File 0, [[@LINE-1]]:3 -> [[@LINE-1]]:9 = #4, (#0 - #4) 118 case 4: // CHECK-NEXT: File 0, [[@LINE]]:3 -> [[@LINE+2]]:10 = (#4 + #5) 119 i = 99; // CHECK-NEXT: Branch,File 0, [[@LINE-1]]:3 -> [[@LINE-1]]:9 = #5, (#0 - #5) 120 break; 121 } 122 } 123 124 void abort(void) __attribute((noreturn)); 125 // CHECK: noret 126 int noret(int x) { // CHECK-NEXT: File 0, [[@LINE]]:18 -> [[@LINE+11]]:2 127 switch (x) { // CHECK-NEXT: Gap,File 0, [[@LINE]]:14 -> [[@LINE+8]]:14 = 0 128 default: // CHECK-NEXT: File 0, [[@LINE]]:3 -> [[@LINE+1]]:12 129 abort(); // CHECK-NEXT: Branch,File 0, [[@LINE-1]]:3 -> [[@LINE-1]]:10 = #2, (#0 - #2) 130 // CHECK-NEXT: Gap,File 0, [[@LINE-1]]:13 -> [[@LINE+1]]:3 = 0 131 case 1: // CHECK-NEXT: File 0, [[@LINE]]:3 -> [[@LINE+1]]:13 132 return 5; // CHECK-NEXT: Branch,File 0, [[@LINE-1]]:3 -> [[@LINE-1]]:9 = #3, (#0 - #3) 133 // CHECK-NEXT: Gap,File 0, [[@LINE-1]]:14 -> [[@LINE+1]]:3 = 0 134 case 2: // CHECK-NEXT: File 0, [[@LINE]]:3 -> [[@LINE+1]]:14 135 return 10; // CHECK-NEXT: Branch,File 0, [[@LINE-1]]:3 -> [[@LINE-1]]:9 = #4, (#0 - #4) 136 } 137 } 138