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
91 lines
4.6 KiB
C++
91 lines
4.6 KiB
C++
// RUN: llvm-profdata merge %S/Inputs/branch-logical-mixed.proftext -o %t.profdata
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// RUN: llvm-cov show --show-branches=count %S/Inputs/branch-logical-mixed.o32l -instr-profile %t.profdata -path-equivalence=/tmp,%S %s | FileCheck %s
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// RUN: llvm-cov report --show-branch-summary %S/Inputs/branch-logical-mixed.o32l -instr-profile %t.profdata -show-functions -path-equivalence=/tmp,%S %s | FileCheck %s -check-prefix=REPORT
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#include <stdio.h>
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#include <stdlib.h>
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void func(int a, int b) {
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bool b0 = a <= b;
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bool b1 = a == b;
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bool b2 = a >= b;
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bool b3 = a < b;
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bool b4 = a > b;
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bool b5 = a != b;
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bool c = b0 && // CHECK: Branch ([[@LINE]]:12): [True: 3, False: 1]
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b1 && // CHECK: Branch ([[@LINE]]:12): [True: 2, False: 1]
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b2 && // CHECK: Branch ([[@LINE]]:12): [True: 2, False: 0]
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b3 && // CHECK: Branch ([[@LINE]]:12): [True: 0, False: 2]
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b4 && // CHECK: Branch ([[@LINE]]:12): [True: 0, False: 0]
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b5; // CHECK: Branch ([[@LINE]]:12): [True: 0, False: 0]
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bool d = b0 || // CHECK: Branch ([[@LINE]]:12): [True: 3, False: 1]
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b1 || // CHECK: Branch ([[@LINE]]:12): [True: 0, False: 1]
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b2 || // CHECK: Branch ([[@LINE]]:12): [True: 1, False: 0]
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b3 || // CHECK: Branch ([[@LINE]]:12): [True: 0, False: 0]
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b4 || // CHECK: Branch ([[@LINE]]:12): [True: 0, False: 0]
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b5; // CHECK: Branch ([[@LINE]]:12): [True: 0, False: 0]
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bool e = (b0 && // CHECK: Branch ([[@LINE]]:13): [True: 3, False: 1]
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b5) || // CHECK: Branch ([[@LINE]]:13): [True: 1, False: 2]
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(b1 && // CHECK: Branch ([[@LINE]]:13): [True: 2, False: 1]
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b4) || // CHECK: Branch ([[@LINE]]:13): [True: 0, False: 2]
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(b2 && // CHECK: Branch ([[@LINE]]:13): [True: 3, False: 0]
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b3) || // CHECK: Branch ([[@LINE]]:13): [True: 0, False: 3]
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(b3 && // CHECK: Branch ([[@LINE]]:13): [True: 0, False: 3]
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b2) || // CHECK: Branch ([[@LINE]]:13): [True: 0, False: 0]
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(b4 && // CHECK: Branch ([[@LINE]]:13): [True: 1, False: 2]
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b1) || // CHECK: Branch ([[@LINE]]:13): [True: 0, False: 1]
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(b5 && // CHECK: Branch ([[@LINE]]:13): [True: 1, False: 2]
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b0); // CHECK: Branch ([[@LINE]]:13): [True: 0, False: 1]
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bool f = (b0 || // CHECK: Branch ([[@LINE]]:13): [True: 3, False: 1]
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b5) && // CHECK: Branch ([[@LINE]]:13): [True: 1, False: 0]
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(b1 || // CHECK: Branch ([[@LINE]]:13): [True: 2, False: 2]
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b4) && // CHECK: Branch ([[@LINE]]:13): [True: 1, False: 1]
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(b2 || // CHECK: Branch ([[@LINE]]:13): [True: 3, False: 0]
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b3) && // CHECK: Branch ([[@LINE]]:13): [True: 0, False: 0]
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(b3 || // CHECK: Branch ([[@LINE]]:13): [True: 0, False: 3]
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b2) && // CHECK: Branch ([[@LINE]]:13): [True: 3, False: 0]
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(b4 || // CHECK: Branch ([[@LINE]]:13): [True: 1, False: 2]
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b1) && // CHECK: Branch ([[@LINE]]:13): [True: 2, False: 0]
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(b5 || // CHECK: Branch ([[@LINE]]:13): [True: 1, False: 2]
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b0); // CHECK: Branch ([[@LINE]]:13): [True: 2, False: 0]
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if (c) // CHECK: Branch ([[@LINE]]:7): [True: 0, False: 4]
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printf("case0\n");
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else
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printf("case1\n");
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if (d) // CHECK: Branch ([[@LINE]]:7): [True: 4, False: 0]
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printf("case2\n");
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else
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printf("case3\n");
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if (e) // CHECK: Branch ([[@LINE]]:7): [True: 1, False: 3]
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printf("case4\n");
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else
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printf("case5\n");
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if (f) // CHECK: Branch ([[@LINE]]:7): [True: 3, False: 1]
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printf("case6\n");
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else
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printf("case7\n");
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}
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extern "C" { extern void __llvm_profile_write_file(void); }
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int main(int argc, char *argv[])
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{
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func(atoi(argv[1]), atoi(argv[2]));
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__llvm_profile_write_file();
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return 0;
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}
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// REPORT: Name Regions Miss Cover Lines Miss Cover Branches Miss Cover
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// REPORT-NEXT: ---
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// REPORT-NEXT: _Z4funcii 77 9 88.31% 68 10 85.29% 80 32 60.00%
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// REPORT-NEXT: main 1 0 100.00% 5 0 100.00% 0 0 0.00%
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// REPORT-NEXT: ---
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// REPORT-NEXT: TOTAL 78 9 88.46% 73 10 86.30% 80 32 60.00%
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