clang/test/CoverageMapping/branch-constfolded.cpp

   1 // Test that branch regions are not generated for constant-folded conditions.
   2
   3 // 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-constfolded.cpp %s | FileCheck %s
   4
   5 // CHECK-LABEL: _Z6fand_0b:
   6 bool fand_0(bool a) {
   7   return false && a;       // CHECK: Branch,File 0, [[@LINE]]:10 -> [[@LINE]]:15 = 0, 0
   8 }                          // CHECK: Branch,File 0, [[@LINE-1]]:19 -> [[@LINE-1]]:20 = #2, (#1 - #2)
   9
  10 // CHECK-LABEL: _Z6fand_1b:
  11 bool fand_1(bool a) {
  12   return a && true;        // CHECK: Branch,File 0, [[@LINE]]:10 -> [[@LINE]]:11 = #1, (#0 - #1)
  13 }                          // CHECK: Branch,File 0, [[@LINE-1]]:15 -> [[@LINE-1]]:19 = 0, 0
  14
  15 // CHECK-LABEL: _Z6fand_2bb:
  16 bool fand_2(bool a, bool b) {
  17   return false && a && b;  // CHECK: Branch,File 0, [[@LINE]]:10 -> [[@LINE]]:15 = 0, 0
  18 }                          // CHECK: Branch,File 0, [[@LINE-1]]:19 -> [[@LINE-1]]:20 = #4, (#3 - #4)
  19                            // CHECK: Branch,File 0, [[@LINE-2]]:24 -> [[@LINE-2]]:25 = #2, (#1 - #2)
  20
  21 // CHECK-LABEL: _Z6fand_3bb:
  22 bool fand_3(bool a, bool b) {
  23   return a && true && b;   // CHECK: Branch,File 0, [[@LINE]]:10 -> [[@LINE]]:11 = #3, (#0 - #3)
  24 }                          // CHECK: Branch,File 0, [[@LINE-1]]:15 -> [[@LINE-1]]:19 = 0, 0
  25                            // CHECK: Branch,File 0, [[@LINE-2]]:23 -> [[@LINE-2]]:24 = #2, (#1 - #2)
  26
  27 // CHECK-LABEL: _Z6fand_4bb:
  28 bool fand_4(bool a, bool b) {
  29   return a && b && false;  // CHECK: Branch,File 0, [[@LINE]]:10 -> [[@LINE]]:11 = #3, (#0 - #3)
  30 }                          // CHECK: Branch,File 0, [[@LINE-1]]:15 -> [[@LINE-1]]:16 = #4, (#3 - #4)
  31                            // CHECK: Branch,File 0, [[@LINE-2]]:20 -> [[@LINE-2]]:25 = 0, 0
  32
  33 // CHECK-LABEL: _Z6fand_5b:
  34 bool fand_5(bool a) {
  35   return false && true;    // CHECK: Branch,File 0, [[@LINE]]:10 -> [[@LINE]]:15 = 0, 0
  36 }                          // CHECK: Branch,File 0, [[@LINE-1]]:19 -> [[@LINE-1]]:23 = 0, 0
  37
  38 // CHECK-LABEL: _Z6fand_6b:
  39 bool fand_6(bool a) {
  40   return true && a;        // CHECK: Branch,File 0, [[@LINE]]:10 -> [[@LINE]]:14 = 0, 0
  41 }                          // CHECK: Branch,File 0, [[@LINE-1]]:18 -> [[@LINE-1]]:19 = #2, (#1 - #2)
  42
  43 // CHECK-LABEL: _Z6fand_7b:
  44 bool fand_7(bool a) {
  45   return a && false;       // CHECK: Branch,File 0, [[@LINE]]:10 -> [[@LINE]]:11 = #1, (#0 - #1)
  46 }                          // CHECK: Branch,File 0, [[@LINE-1]]:15 -> [[@LINE-1]]:20 = 0, 0
  47
  48 // CHECK-LABEL: _Z5for_0b:
  49 bool for_0(bool a) {
  50   return true || a;        // CHECK: Branch,File 0, [[@LINE]]:10 -> [[@LINE]]:14 = 0, 0
  51 }                          // CHECK: Branch,File 0, [[@LINE-1]]:18 -> [[@LINE-1]]:19 = (#1 - #2), #2
  52
  53 // CHECK-LABEL: _Z5for_1b:
  54 bool for_1(bool a) {
  55   return a || false;       // CHECK: Branch,File 0, [[@LINE]]:10 -> [[@LINE]]:11 = (#0 - #1), #1
  56 }                          // CHECK: Branch,File 0, [[@LINE-1]]:15 -> [[@LINE-1]]:20 = 0, 0
  57
  58 // CHECK-LABEL: _Z5for_2bb:
  59 bool for_2(bool a, bool b) {
  60   return true || a || b;   // CHECK: Branch,File 0, [[@LINE]]:10 -> [[@LINE]]:14 = 0, 0
  61 }                          // CHECK: Branch,File 0, [[@LINE-1]]:18 -> [[@LINE-1]]:19 = (#3 - #4), #4
  62                            // CHECK: Branch,File 0, [[@LINE-2]]:23 -> [[@LINE-2]]:24 = (#1 - #2), #2
  63
  64 // CHECK-LABEL: _Z5for_3bb:
  65 bool for_3(bool a, bool b) {
  66   return a || false || b;  // CHECK: Branch,File 0, [[@LINE]]:10 -> [[@LINE]]:11 = (#0 - #3), #3
  67 }                          // CHECK: Branch,File 0, [[@LINE-1]]:15 -> [[@LINE-1]]:20 = 0, 0
  68                            // CHECK: Branch,File 0, [[@LINE-2]]:24 -> [[@LINE-2]]:25 = (#1 - #2), #2
  69
  70 // CHECK-LABEL: _Z5for_4bb:
  71 bool for_4(bool a, bool b) {
  72   return a || b || true;   // CHECK: Branch,File 0, [[@LINE]]:10 -> [[@LINE]]:11 = (#0 - #3), #3
  73 }                          // CHECK: Branch,File 0, [[@LINE-1]]:15 -> [[@LINE-1]]:16 = (#3 - #4), #4
  74                            // CHECK: Branch,File 0, [[@LINE-2]]:20 -> [[@LINE-2]]:24 = 0, 0
  75
  76 // CHECK-LABEL: _Z5for_5b:
  77 bool for_5(bool a) {
  78   return true || false;    // CHECK: Branch,File 0, [[@LINE]]:10 -> [[@LINE]]:14 = 0, 0
  79 }                          // CHECK: Branch,File 0, [[@LINE-1]]:18 -> [[@LINE-1]]:23 = 0, 0
  80
  81 // CHECK-LABEL: _Z5for_6b:
  82 bool for_6(bool a) {
  83   return false || a;       // CHECK: Branch,File 0, [[@LINE]]:10 -> [[@LINE]]:15 = 0, 0
  84 }                          // CHECK: Branch,File 0, [[@LINE-1]]:19 -> [[@LINE-1]]:20 = (#1 - #2), #2
  85
  86 // CHECK-LABEL: _Z5for_7b:
  87 bool for_7(bool a) {
  88   return a || true;        // CHECK: Branch,File 0, [[@LINE]]:10 -> [[@LINE]]:11 = (#0 - #1), #1
  89 }                          // CHECK: Branch,File 0, [[@LINE-1]]:15 -> [[@LINE-1]]:19 = 0, 0
  90