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
83 lines
4.7 KiB
C++
83 lines
4.7 KiB
C++
// RUN: %clang_cc1 -mllvm -emptyline-comment-coverage=false -fprofile-instrument=clang -fcoverage-mapping -dump-coverage-mapping -emit-llvm-only -main-file-name label.cpp %s | FileCheck %s
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// CHECK: func
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void func() { // CHECK-NEXT: File 0, [[@LINE]]:13 -> {{[0-9]+}}:2 = #0
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int i = 0; // CHECK-NEXT: File 0, [[@LINE+3]]:14 -> [[@LINE+3]]:20 = (#0 + #3)
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// CHECK-NEXT: Branch,File 0, [[@LINE+2]]:14 -> [[@LINE+2]]:20 = #1, ((#0 + #3) - #1)
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// CHECK-NEXT: File 0, [[@LINE+1]]:22 -> [[@LINE+1]]:25 = #3
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for(i = 0; i < 10; ++i) { // CHECK: File 0, [[@LINE]]:27 -> [[@LINE+11]]:4 = #1
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// CHECK-NEXT: File 0, [[@LINE+1]]:8 -> [[@LINE+1]]:13 = #1
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if(i < 5) { // CHECK: File 0, [[@LINE]]:15 -> [[@LINE+6]]:6 = #2
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{
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x: // CHECK-NEXT: File 0, [[@LINE]]:9 -> [[@LINE+4]]:6 = #3
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int j = 1;
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}
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int m = 2;
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} else
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goto x; // CHECK: File 0, [[@LINE]]:7 -> [[@LINE]]:13 = (#1 - #2)
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int k = 3; // CHECK-NEXT: File 0, [[@LINE-1]]:13 -> [[@LINE]]:5 = #3
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} // CHECK-NEXT: File 0, [[@LINE-1]]:5 -> [[@LINE]]:4 = #3
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static int j = 0; // CHECK-NEXT: File 0, [[@LINE]]:3 -> [[@LINE+4]]:2 = ((#0 + #3) - #1)
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++j;
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if(j == 1) // CHECK-NEXT: File 0, [[@LINE]]:6 -> [[@LINE]]:12 = ((#0 + #3) - #1)
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goto x; // CHECK: File 0, [[@LINE]]:5 -> [[@LINE]]:11 = #4
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}
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// CHECK-NEXT: test1
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void test1(int x) { // CHECK-NEXT: File 0, [[@LINE]]:19 -> {{[0-9]+}}:2 = #0
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if(x == 0) // CHECK-NEXT: File 0, [[@LINE]]:6 -> [[@LINE]]:12 = #0
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goto a; // CHECK: File 0, [[@LINE]]:5 -> [[@LINE]]:11 = #1
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// CHECK-NEXT: File 0, [[@LINE-1]]:11 -> [[@LINE+1]]:3 = (#0 - #1)
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goto b; // CHECK: File 0, [[@LINE]]:3 -> [[@LINE+5]]:2 = (#0 - #1)
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// CHECK-NEXT: Gap,File 0, [[@LINE-1]]:9 -> [[@LINE+1]]:1 = #2
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a: // CHECK-NEXT: File 0, [[@LINE]]:1 -> [[@LINE+3]]:2 = #2
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b: // CHECK-NEXT: File 0, [[@LINE]]:1 -> [[@LINE+2]]:2 = #3
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x = x + 1;
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}
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// CHECK-NEXT: test2
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void test2(int x) { // CHECK-NEXT: File 0, [[@LINE]]:19 -> {{[0-9]+}}:2 = #0
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if(x == 0) // CHECK-NEXT: File 0, [[@LINE]]:6 -> [[@LINE]]:12 = #0
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goto a; // CHECK: File 0, [[@LINE]]:5 -> [[@LINE]]:11 = #1
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// CHECK: Gap,File 0, [[@LINE-1]]:12 -> [[@LINE+3]]:8 = (#0 - #1)
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// CHECK-NEXT: File 0, [[@LINE+2]]:8 -> [[@LINE+3]]:11 = (#0 - #1)
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// CHECK-NEXT: File 0, [[@LINE+1]]:11 -> [[@LINE+1]]:17 = (#0 - #1)
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else if(x == 1) // CHECK: File 0, [[@LINE+1]]:5 -> [[@LINE+1]]:11 = #2
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goto b; // CHECK-NEXT: File 0, [[@LINE]]:11 -> [[@LINE+1]]:1 = #3
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a: // CHECK-NEXT: File 0, [[@LINE]]:1 -> [[@LINE+3]]:2 = #3
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b: // CHECK-NEXT: File 0, [[@LINE]]:1 -> [[@LINE+2]]:2 = #4
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x = x + 1;
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}
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// CHECK-NEXT: test3
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#define a b
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void test3() {
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if (0)
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goto b; // CHECK: Gap,File 0, [[@LINE]]:11 -> [[@LINE+1]]:1 = [[retnCount:#[0-9]+]]
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a: // CHECK-NEXT: Expansion,File 0, [[@LINE]]:1 -> [[@LINE]]:2 = [[retnCount]] (Expanded file = 1)
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return; // CHECK-NEXT: File 0, [[@LINE-1]]:2 -> [[@LINE]]:9 = [[retnCount]]
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}
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#undef a
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// CHECK: main
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int main() { // CHECK-NEXT: File 0, [[@LINE]]:12 -> {{[0-9]+}}:2 = #0
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int j = 0;
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for(int i = 0; i < 10; ++i) { // CHECK: File 0, [[@LINE]]:31 -> [[@LINE+13]]:4 = #1
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a: // CHECK-NEXT: File 0, [[@LINE]]:3 -> [[@LINE+12]]:4 = #2
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if(i < 3) // CHECK-NEXT: File 0, [[@LINE]]:8 -> [[@LINE]]:13 = #2
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goto e; // CHECK: File 0, [[@LINE]]:7 -> [[@LINE]]:13 = #3
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// CHECK-NEXT: File 0, [[@LINE-1]]:13 -> [[@LINE+1]]:5 = (#2 - #3)
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goto c; // CHECK-NEXT: File 0, [[@LINE]]:5 -> [[@LINE+8]]:4 = (#2 - #3)
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// CHECK-NEXT: Gap,File 0, [[@LINE-1]]:11 -> [[@LINE+1]]:3 = #4
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b: // CHECK-NEXT: File 0, [[@LINE]]:3 -> [[@LINE+6]]:4 = #4
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j = 2;
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c: // CHECK-NEXT: File 0, [[@LINE]]:3 -> [[@LINE+4]]:4 = #5
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j = 1;
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// CHECK-NEXT: File 0, [[@LINE+1]]:3 -> [[@LINE+2]]:4 = #6
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e: f: ; // CHECK-NEXT: File 0, [[@LINE]]:6 -> [[@LINE+1]]:4 = #7
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}
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func(); // CHECK-NEXT: File 0, [[@LINE]]:3 -> [[@LINE+3]]:2 = ((#0 + #7) - #1)
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test1(0);
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test2(2);
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}
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