llvm/test/tools/llvm-cov/branch-showBranchPercentage.c

   1 // Test visualization of branch taken percentages
   2
   3 // RUN: llvm-profdata merge %S/Inputs/branch-showBranchPercentage.proftext -o %t.profdata
   4 // RUN: llvm-cov show --show-branches=percent %S/Inputs/branch-showBranchPercentage.o32l -instr-profile %t.profdata -path-equivalence=/tmp,%S %s | FileCheck %s
   5
   6 #include <stdio.h>
   7 #include <stdlib.h>
   8
   9 extern void __llvm_profile_write_file(void);
  10
  11 int main(int argc, char *argv[])
  12 {
  13   int i = 0;
  14   if (argc < 3)                       // CHECK: Branch ([[@LINE]]:7): [True: 16.67%, False: 83.33%]
  15   {
  16     __llvm_profile_write_file();
  17     return 0;
  18   }
  19
  20   int a = atoi(argv[1]);
  21   int b = atoi(argv[2]);
  22
  23                                       // CHECK: Branch ([[@LINE+4]]:8): [True: 20.00%, False: 80.00%]
  24                                       // CHECK: Branch ([[@LINE+3]]:18): [True: 0.00%, False: 100.00%]
  25                                       // CHECK: Branch ([[@LINE+2]]:29): [True: 0.00%, False: 100.00%]
  26                                       // CHECK: Branch ([[@LINE+1]]:40): [True: 40.00%, False: 60.00%]
  27   if ((a == 0 && b == 2) || b == 34 || a == b)
  28     printf("case1\n");
  29
  30   b = (a != 0 || a == 2) ? b : b+2;   // CHECK: Branch ([[@LINE]]:8): [True: 80.00%, False: 20.00%]
  31                                       // CHECK: Branch ([[@LINE-1]]:18): [True: 0.00%, False: 100.00%]
  32   b = (a != 0 && a == 1);             // CHECK: Branch ([[@LINE]]:8): [True: 80.00%, False: 20.00%]
  33                                       // CHECK: Branch ([[@LINE-1]]:18): [True: 25.00%, False: 75.00%]
  34   for (i = 0; i < b; i++) { a = 2 + b + b; }
  35                                       // CHECK: Branch ([[@LINE-1]]:15): [True: 16.67%, False: 83.33%]
  36
  37   b = a;
  38
  39   switch (a)
  40   {
  41     case 0:                           // CHECK: Branch ([[@LINE]]:5): [True: 20.00%, False: 80.00%]
  42       printf("case0\n");
  43     case 2:                           // CHECK: Branch ([[@LINE]]:5): [True: 20.00%, False: 80.00%]
  44       printf("case2\n");
  45     case 3:                           // CHECK: Branch ([[@LINE]]:5): [True: 0.00%, False: 100.00%]
  46       printf("case3\n");
  47     default: break;                   // CHECK: Branch ([[@LINE]]:5): [True: 60.00%, False: 40.00%]
  48   }
  49
  50   i = 0;
  51   do {
  52     printf("loop\n");
  53   } while (i++ < 10);                 // CHECK: Branch ([[@LINE]]:12): [True: 90.91%, False: 9.09%]
  54
  55   __llvm_profile_write_file();
  56
  57   return b;
  58 }
  59 // RUN: llvm-profdata merge %S/Inputs/branch-showBranchPercentage.proftext -o %t.profdata
  60 // RUN: llvm-cov show --show-branches=percent %S/Inputs/branch-showBranchPercentage.o32l -instr-profile %t.profdata -path-equivalence=/tmp,%S %s -format html -o %t.html.dir
  61
  62 // Test html output.
  63 // RUN: FileCheck -check-prefix=HTML -input-file=%t.html.dir/coverage/tmp/branch-showBranchPercentage.c.html %s
  64 // HTML: Branch (<span class='line-number'><a name='L{{[0-9]+}}' href='#L{{[0-9]+}}'><span>{{.*}}16.67%,{{.*}}83.33%]
  65 // HTML: Branch (<span class='line-number'><a name='L{{[0-9]+}}' href='#L{{[0-9]+}}'><span>{{.*}}20.00%,{{.*}}80.00%]
  66 // HTML: Branch (<span class='line-number'><a name='L{{[0-9]+}}' href='#L{{[0-9]+}}'><span>{{.*}}0.00%,{{.*}}100.00%]
  67 // HTML: Branch (<span class='line-number'><a name='L{{[0-9]+}}' href='#L{{[0-9]+}}'><span>{{.*}}0.00%,{{.*}}100.00%]
  68 // HTML: Branch (<span class='line-number'><a name='L{{[0-9]+}}' href='#L{{[0-9]+}}'><span>{{.*}}40.00%,{{.*}}60.00%]
  69 // HTML: Branch (<span class='line-number'><a name='L{{[0-9]+}}' href='#L{{[0-9]+}}'><span>{{.*}}80.00%,{{.*}}20.00%]
  70 // HTML: Branch (<span class='line-number'><a name='L{{[0-9]+}}' href='#L{{[0-9]+}}'><span>{{.*}}0.00%,{{.*}}100.00%]
  71 // HTML: Branch (<span class='line-number'><a name='L{{[0-9]+}}' href='#L{{[0-9]+}}'><span>{{.*}}80.00%,{{.*}}20.00%]
  72 // HTML: Branch (<span class='line-number'><a name='L{{[0-9]+}}' href='#L{{[0-9]+}}'><span>{{.*}}25.00%,{{.*}}75.00%]
  73 // HTML: Branch (<span class='line-number'><a name='L{{[0-9]+}}' href='#L{{[0-9]+}}'><span>{{.*}}16.67%,{{.*}}83.33%]
  74 // HTML: Branch (<span class='line-number'><a name='L{{[0-9]+}}' href='#L{{[0-9]+}}'><span>{{.*}}20.00%,{{.*}}80.00%]
  75 // HTML: Branch (<span class='line-number'><a name='L{{[0-9]+}}' href='#L{{[0-9]+}}'><span>{{.*}}20.00%,{{.*}}80.00%]
  76 // HTML: Branch (<span class='line-number'><a name='L{{[0-9]+}}' href='#L{{[0-9]+}}'><span>{{.*}}0.00%,{{.*}}100.00%]
  77 // HTML: Branch (<span class='line-number'><a name='L{{[0-9]+}}' href='#L{{[0-9]+}}'><span>{{.*}}60.00%,{{.*}}40.00%]