9f2967bcfe
This is an enhancement to LLVM Source-Based Code Coverage in clang to track how many times individual branch-generating conditions are taken (evaluate to TRUE) and not taken (evaluate to FALSE). Individual conditions may comprise larger boolean expressions using boolean logical operators. This functionality is very similar to what is supported by GCOV except that it is very closely anchored to the ASTs. Differential Revision: https://reviews.llvm.org/D84467
78 lines
3.0 KiB
C
78 lines
3.0 KiB
C
// RUN: %clang_cc1 -mllvm -emptyline-comment-coverage=false -fprofile-instrument=clang -fcoverage-mapping -dump-coverage-mapping -emit-llvm-only -main-file-name macros.c %s | FileCheck %s
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#define MACRO return; bar()
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#define MACRO_2 bar()
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#define MACRO_1 return; MACRO_2
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#define MACRO_3 MACRO_2
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#define GOTO goto
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void bar() {}
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// CHECK: func
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void func() { // CHECK-NEXT: File 0, [[@LINE]]:13 -> [[@LINE+5]]:2 = #0
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int i = 0;
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// CHECK-NEXT: Expansion,File 0, [[@LINE+1]]:3 -> [[@LINE+1]]:8 = #0
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MACRO; // CHECK-NEXT: File 0, [[@LINE]]:8 -> [[@LINE+2]]:2 = 0
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i = 2;
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}
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// CHECK-NEXT: File 1, 3:15 -> 3:28 = #0
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// CHECK-NEXT: File 1, 3:23 -> 3:28 = 0
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// CHECK-NEXT: func2
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void func2() { // CHECK-NEXT: File 0, [[@LINE]]:14 -> [[@LINE+5]]:2 = #0
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int i = 0;
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// CHECK-NEXT: Expansion,File 0, [[@LINE+1]]:3 -> [[@LINE+1]]:10 = #0
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MACRO_1; // CHECK-NEXT: File 0, [[@LINE]]:10 -> [[@LINE+2]]:2 = 0
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i = 2;
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}
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// CHECK-NEXT: File 1, 5:17 -> 5:32 = #0
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// CHECK-NEXT: Expansion,File 1, 5:25 -> 5:32 = 0
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// CHECK-NEXT: File 2, 4:17 -> 4:22 = 0
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// CHECK-NEXT: func3
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void func3() { // CHECK-NEXT: File 0, [[@LINE]]:14 -> [[@LINE+3]]:2 = #0
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MACRO_2; // CHECK-NEXT: Expansion,File 0, [[@LINE]]:3 -> [[@LINE]]:10 = #0
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MACRO_2; // CHECK-NEXT: Expansion,File 0, [[@LINE]]:3 -> [[@LINE]]:10 = #0
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}
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// CHECK-NEXT: File 1, 4:17 -> 4:22 = #0
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// CHECK-NEXT: File 2, 4:17 -> 4:22 = #0
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// CHECK-NEXT: func4
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void func4() { // CHECK-NEXT: File 0, [[@LINE]]:14 -> [[@LINE+7]]:2 = #0
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int i = 0;
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while (i++ < 10) // CHECK-NEXT: File 0, [[@LINE]]:10 -> [[@LINE]]:18 = (#0 + #1)
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if (i < 5) // CHECK: File 0, [[@LINE]]:5 -> [[@LINE+3]]:14 = #1
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// CHECK-NEXT: File 0, [[@LINE-1]]:9 -> [[@LINE-1]]:14 = #1
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// CHECK-NEXT: Branch,File 0, [[@LINE-2]]:9 -> [[@LINE-2]]:14 = #2, (#1 - #2)
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MACRO_2; // CHECK-NEXT: Expansion,File 0, [[@LINE]]:7 -> [[@LINE]]:14 = #2
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}
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// CHECK-NEXT: File 1, 4:17 -> 4:22 = #2
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// CHECK-NOT: File 1
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// CHECK-NEXT: func5
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void func5() { // CHECK-NEXT: File 0, [[@LINE]]:14 -> [[@LINE+5]]:2 = #0
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int i = 0;
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if (i > 5) // CHECK-NEXT: File 0, [[@LINE]]:7 -> [[@LINE]]:12 = #0
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// CHECK-NEXT: Branch,File 0, [[@LINE-1]]:7 -> [[@LINE-1]]:12 = #1, (#0 - #1)
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MACRO_3; // CHECK-NEXT: Expansion,File 0, [[@LINE]]:5 -> [[@LINE]]:12 = #1
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}
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// CHECK-NEXT: Expansion,File 1, 6:17 -> 6:24 = #1
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// CHECK-NEXT: File 2, 4:17 -> 4:22 = #1
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// CHECK-NEXT: func6
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void func6(unsigned count) { // CHECK-NEXT: File 0, [[@LINE]]:28 -> [[@LINE+5]]:2 = #0
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begin: // CHECK-NEXT: File 0, [[@LINE]]:1 -> [[@LINE+4]]:2 = #1
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if (count--) // CHECK-NEXT: File 0, [[@LINE]]:9 -> [[@LINE]]:16 = #1
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// CHECK-NEXT: Branch,File 0, [[@LINE-1]]:9 -> [[@LINE-1]]:16 = #2, (#1 - #2)
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GOTO begin; // CHECK-NEXT: File 0, [[@LINE]]:9 -> [[@LINE]]:19 = #2
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}
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// CHECK-NEXT: Expansion,File 0, [[@LINE-2]]:9 -> [[@LINE-2]]:13 = #2
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// CHECK-NEXT: File 1, 7:14 -> 7:18 = #2
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int main(int argc, const char *argv[]) {
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func();
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func2();
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func3();
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func4();
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}
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