clang/test/CoverageMapping/branch-macros.cpp

   1 // Test that branch regions are generated for conditions in nested macro
   2 // expansions.
   3
   4 // RUN: %clang_cc1 -triple %itanium_abi_triple -std=c++11 -fprofile-instrument=clang -fcoverage-mapping -dump-coverage-mapping -emit-llvm-only -main-file-name branch-macros.cpp %s | FileCheck %s
   5
   6 #define COND1 (a == b)
   7 #define COND2 (a != b)
   8 #define COND3 (COND1 && COND2)
   9 #define COND4 (COND3 ? COND2 : COND1)
  10 #define MACRO1 COND3
  11 #define MACRO2 MACRO1
  12 #define MACRO3 MACRO2
  13
  14
  15 // CHECK-LABEL: _Z4funcii:
  16 bool func(int a, int b) {
  17                              // CHECK: Branch,File 0, [[@LINE+15]]:12 -> [[@LINE+15]]:13 = #17, (#0 - #17)
  18                              // CHECK: Branch,File 0, [[@LINE+14]]:17 -> [[@LINE+14]]:18 = #18, (#17 - #18)
  19                              // CHECK: Branch,File 0, [[@LINE+13]]:22 -> [[@LINE+13]]:23 = #16, (#15 - #16)
  20                              // CHECK: Branch,File 0, [[@LINE+12]]:27 -> [[@LINE+12]]:28 = #14, (#13 - #14)
  21                              // CHECK: Branch,File 0, [[@LINE+11]]:32 -> [[@LINE+11]]:33 = #12, (#11 - #12)
  22     bool c = COND1 && COND2; // CHECK: Branch,File 1, [[@LINE-16]]:15 -> [[@LINE-16]]:23 = #1, (#0 - #1)
  23                              // CHECK: Branch,File 2, [[@LINE-16]]:15 -> [[@LINE-16]]:23 = #2, (#1 - #2)
  24     bool d = COND3;          // CHECK: Branch,File 7, [[@LINE-18]]:15 -> [[@LINE-18]]:23 = #3, (#0 - #3)
  25                              // CHECK: Branch,File 8, [[@LINE-18]]:15 -> [[@LINE-18]]:23 = #4, (#3 - #4)
  26     bool e = MACRO1;         // CHECK: Branch,File 12, [[@LINE-20]]:15 -> [[@LINE-20]]:23 = #5, (#0 - #5)
  27                              // CHECK: Branch,File 13, [[@LINE-20]]:15 -> [[@LINE-20]]:23 = #6, (#5 - #6)
  28     bool f = MACRO2;         // CHECK: Branch,File 16, [[@LINE-22]]:15 -> [[@LINE-22]]:23 = #7, (#0 - #7)
  29                              // CHECK: Branch,File 17, [[@LINE-22]]:15 -> [[@LINE-22]]:23 = #8, (#7 - #8)
  30     bool g = MACRO3;         // CHECK: Branch,File 19, [[@LINE-24]]:15 -> [[@LINE-24]]:23 = #9, (#0 - #9)
  31                              // CHECK: Branch,File 20, [[@LINE-24]]:15 -> [[@LINE-24]]:23 = #10, (#9 - #10)
  32     return c && d && e && f && g;
  33 }
  34
  35 // CHECK-LABEL: _Z5func2ii:
  36 bool func2(int a, int b) {
  37     bool h = MACRO3 || COND4;// CHECK: Branch,File 2, [[@LINE-28]]:15 -> [[@LINE-28]]:38 = (#1 - #2), #2
  38                              // CHECK: Branch,File 8, [[@LINE-32]]:15 -> [[@LINE-32]]:23 = #6, (#1 - #6)
  39                              // CHECK: Branch,File 9, [[@LINE-32]]:15 -> [[@LINE-32]]:23 = #7, (#6 - #7)
  40                              // CHECK: Branch,File 11, [[@LINE-34]]:15 -> [[@LINE-34]]:23 = #3, (#0 - #3)
  41                              // CHECK: Branch,File 12, [[@LINE-34]]:15 -> [[@LINE-34]]:23 = #4, (#3 - #4)
  42     return h;
  43 }