Revert "[llvm-cov] reset executation count to 0 after wrapped segment"

[zequanwu]

Summary

This reverts D85036

[zequanwu]

Update test.

[pirama]

llvm/test/tools/llvm-cov/Inputs/branch-c-general.c

256–257

Stale edit?

llvm/lib/ProfileData/Coverage/CoverageMapping.cpp

if (!Mapped)
     return;
 
   // Pick the max count from the non-gap, region entry segments and the
   // wrapped count.
   if (WrappedSegment)
     ExecutionCount = WrappedSegment->Count;
   if (!MinRegionCount)
     return;
-  ExecutionCount = 0;
   for (const auto *LS : LineSegments)
     if (isStartOfRegion(LS))
       ExecutionCount = std::max(ExecutionCount, LS->Count);
 }
 
 LineCoverageIterator &LineCoverageIterator::operator++() {
   if (Next == CD.end()) {
     Stats = LineCoverageStats();

llvm/test/tools/llvm-cov/Inputs/branch-c-general.c

int main(int argc, const char *argv[]) {
   early_exits();
   jumps();
   switches();
   big_switch();
   boolean_operators();
   boolop_loops();
   conditional_operator();
   do_fallthrough();
   static_func();
-  extern void __llvm_profile_write_file();
-  __llvm_profile_write_file();
   return 0;
 }

llvm/test/tools/llvm-cov/Inputs/instrprof-comdat.h

 template <class T> class FOO {
 public:
   FOO() : t(0) {}
 
   T DoIt(T ti);
 
 private:
   T t;
 };
 
 template <class T> T FOO<T>::DoIt(T ti) { // HEADER: [[@LINE]]|  2|template
   for (T I = 0; I < ti; I++) {            // HEADER: [[@LINE]]| 22|  for (T
     t += I;                               // HEADER: [[@LINE]]| 20|   t += I;
     if (I > ti / 2)                       // HEADER: [[@LINE]]| 20|   if (I > ti
-      t -= 1;                             // HEADER: [[@LINE]]|  8|     t -= 1;
+      t -= 1;                             // HEADER: [[@LINE]]| 20|     t -= 1;
   }                                       // HEADER: [[@LINE]]| 20| }
                                           // HEADER: [[@LINE]]|  2|
   return t;                               // HEADER: [[@LINE]]|  2|  return t;
 }
 
 // To generate the binaries which correspond to this file, you must first
 // compile a program with two calls to Foo<int>::DoIt(10) for each desired
 // architecture. Collect a raw profile from any one of these binaries, index
 // it, and check it in along with the executables.
 
 // Note:
 // The line execution count on line 14 is incorrect because of a bug in the
 // checked-in coverage mappings, which has subsequently been fixed in clang.

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

 // CHECK: Branch (232:19): [True: 10, False: 1]
 
 
 
 // REPORT: Name                        Regions    Miss   Cover     Lines    Miss   Cover  Branches    Miss   Cover
 // REPORT-NEXT: ---
 // REPORT-NEXT: simple_loops                      8       0 100.00%         9       0 100.00%         6       0 100.00%
 // REPORT-NEXT: conditionals                     24       0 100.00%        15       0 100.00%        16       2  87.50%
-// REPORT-NEXT: early_exits                      20       4  80.00%        25       3  88.00%        16       6  62.50%
-// REPORT-NEXT: jumps                            39      12  69.23%        48       4  91.67%        26       9  65.38%
-// REPORT-NEXT: switches                         28       5  82.14%        38       5  86.84%        30       9  70.00%
+// REPORT-NEXT: early_exits                      20       4  80.00%        25       2  92.00%        16       6  62.50%
+// REPORT-NEXT: jumps                            39      12  69.23%        48       2  95.83%        26       9  65.38%
+// REPORT-NEXT: switches                         28       5  82.14%        38       4  89.47%        30       9  70.00%
 // REPORT-NEXT: big_switch                       25       1  96.00%        32       0 100.00%        30       6  80.00%
 // REPORT-NEXT: boolean_operators                16       0 100.00%        13       0 100.00%        22       2  90.91%
 // REPORT-NEXT: boolop_loops                     19       0 100.00%        14       0 100.00%        16       2  87.50%
-// REPORT-NEXT: conditional_operator              4       2  50.00%         8       1  87.50%         4       2  50.00%
+// REPORT-NEXT: conditional_operator              4       2  50.00%         8       0 100.00%         4       2  50.00%
 // REPORT-NEXT: do_fallthrough                    9       0 100.00%        12       0 100.00%         6       0 100.00%
 // REPORT-NEXT: main                              1       0 100.00%        16       0 100.00%         0       0   0.00%
 // REPORT-NEXT: c-general.c:static_func           4       0 100.00%         4       0 100.00%         2       0 100.00%
 // REPORT-NEXT: ---
-// REPORT-NEXT: TOTAL                           197      24  87.82%       234      13 94.44%       174      38  78.16%
+// REPORT-NEXT: TOTAL                           197      24  87.82%       234       8  96.58%       174      38  78.16%
 
 // Test file-level report.
 // RUN: llvm-profdata merge %S/Inputs/branch-c-general.proftext -o %t.profdata
 // RUN: llvm-cov report %S/Inputs/branch-c-general.o32l -instr-profile %t.profdata -path-equivalence=/tmp,%S/Inputs %S/Inputs/branch-c-general.c | FileCheck %s -check-prefix=FILEREPORT
 // FILEREPORT: TOTAL{{.*}}174                38    78.16%
 
 // Test color True/False output.
 // RUN: llvm-cov show --use-color --show-branches=count %S/Inputs/branch-c-general.o32l -instr-profile %t.profdata -path-equivalence=/tmp,%S/Inputs %S/Inputs/branch-c-general.c | FileCheck %s -check-prefix=USECOLOR

 // HTML-INDEX: <td class='column-entry-bold'>Function Coverage</td>
 // HTML-INDEX: <td class='column-entry-bold'>Line Coverage</td>
 // HTML-INDEX: <td class='column-entry-bold'>Region Coverage</td>
 // HTML-INDEX: <td class='column-entry-bold'>Branch Coverage</td>
 // HTML-INDEX: <a href='coverage{{.*}}branch-c-general.c.html'{{.*}}branch-c-general.c</a>
 // HTML-INDEX: <td class='column-entry-green'>
 // HTML-INDEX: 100.00% (12/12)
 // HTML-INDEX: <td class='column-entry-yellow'>
-// HTML-INDEX: 94.44% (221/234)
+// HTML-INDEX: 96.58% (226/234)
 // HTML-INDEX: <td class='column-entry-yellow'>
 // HTML-INDEX: 87.82% (173/197)
 // HTML-INDEX: <td class='column-entry-red'>
 // HTML-INDEX: 78.16% (136/174)
 // HTML-INDEX: <tr class='light-row-bold'>
 // HTML-INDEX: Totals

llvm/test/tools/llvm-cov/branch-logical-mixed.cpp

 {
   func(atoi(argv[1]), atoi(argv[2]));
   __llvm_profile_write_file();
   return 0;
 }
 
 // REPORT: Name                        Regions    Miss   Cover     Lines    Miss   Cover  Branches    Miss   Cover
 // REPORT-NEXT: ---
-// REPORT-NEXT: _Z4funcii                        77       9  88.31%        68       10  85.29%        80      32  60.00%
+// REPORT-NEXT: _Z4funcii                        77       9  88.31%        68       3  95.59%        80      32  60.00%
 // REPORT-NEXT: main                              1       0 100.00%         5       0 100.00%         0       0   0.00%
 // REPORT-NEXT: ---
-// REPORT-NEXT: TOTAL                            78       9  88.46%        73       10  86.30%        80      32  60.00%
+// REPORT-NEXT: TOTAL                            78       9  88.46%        73       3  95.89%        80      32  60.00%

llvm/test/tools/llvm-cov/branch-noShowBranch.test

 // REPORT-NOT: switches                         28       5  82.14%        38       4  89.47%        30       9  70.00%
 // REPORT-NOT: big_switch                       25       1  96.00%        32       0 100.00%        30       6  80.00%
 // REPORT-NOT: boolean_operators                16       0 100.00%        13       0 100.00%        22       2  90.91%
 // REPORT-NOT: boolop_loops                     19       0 100.00%        14       0 100.00%        16       2  87.50%
 // REPORT-NOT: conditional_operator              4       2  50.00%         8       0 100.00%         4       2  50.00%
 // REPORT-NOT: do_fallthrough                    9       0 100.00%        12       0 100.00%         6       0 100.00%
 // REPORT-NOT: main                              1       0 100.00%        16       0 100.00%         0       0   0.00%
 // REPORT-NOT: c-general.c:static_func           4       0 100.00%         4       0 100.00%         2       0 100.00%
-// REPORT: TOTAL                           197      24  87.82%       234       13  94.44%
+// REPORT: TOTAL                           197      24  87.82%       234       8  96.58%
 // REPORT-NOT: TOTAL                           197      24  87.82%       234       13  94.44%       174      38  78.16%
 

llvm/test/tools/llvm-cov/ignore-filename-regex.test

 RUN:   -path-equivalence=/tmp,%S/Inputs -ignore-filename-regex='.*extra[/\\].*' \
 RUN:   %S/Inputs/sources_specified/main.covmapping --show-branch-summary=false \
 RUN:   | FileCheck -check-prefix=REPORT_IGNORE_DIR %s
 
 REPORT_IGNORE_DIR-NOT: {{.*}}extra{{[/\\]}}dec.h{{.*}}
 REPORT_IGNORE_DIR-NOT: {{.*}}extra{{[/\\]}}inc.h{{.*}}
 REPORT_IGNORE_DIR: {{.*}}abs.h{{.*}}
 REPORT_IGNORE_DIR: {{.*}}main.cc{{.*}}
-REPORT_IGNORE_DIR: {{^}}TOTAL 5{{.*}}90.00%{{$}}
+REPORT_IGNORE_DIR: {{^}}TOTAL 5{{.*}}100.00%{{$}}
 
 # Ignore all files from "extra" directory even when SOURCES specified.
 RUN: llvm-cov report -instr-profile %S/Inputs/sources_specified/main.profdata \
 RUN:   -path-equivalence=/tmp,%S/Inputs -ignore-filename-regex='.*extra[/\\].*' \
 RUN:   %S/Inputs/sources_specified/main.covmapping --show-branch-summary=false \
 RUN:   %S/Inputs/sources_specified/extra %S/Inputs/sources_specified/abs.h \
 RUN:   | FileCheck -check-prefix=REPORT_IGNORE_DIR_WITH_SOURCES %s
 
 REPORT_IGNORE_DIR_WITH_SOURCES-NOT: {{.*}}extra{{[/\\]}}dec.h{{.*}}
 REPORT_IGNORE_DIR_WITH_SOURCES-NOT: {{.*}}extra{{[/\\]}}inc.h{{.*}}
 REPORT_IGNORE_DIR_WITH_SOURCES-NOT: {{.*}}main.cc{{.*}}
 REPORT_IGNORE_DIR_WITH_SOURCES: {{.*}}abs.h{{.*}}
-REPORT_IGNORE_DIR_WITH_SOURCES: {{^}}TOTAL 4{{.*}}80.00%{{$}}
+REPORT_IGNORE_DIR_WITH_SOURCES: {{^}}TOTAL 4{{.*}}100.00%{{$}}
 
 ########################
 # Test "show" command.
 ########################
 # Ignore all ".cc" files.
 RUN: llvm-cov show -instr-profile %S/Inputs/sources_specified/main.profdata \
 RUN:   -path-equivalence=/tmp,%S/Inputs -ignore-filename-regex='.*\.cc$' \
 RUN:   %S/Inputs/sources_specified/main.covmapping \

llvm/unittests/ProfileData/CoverageMappingTest.cpp

TEST_P(CoverageMappingTest, test_line_coverage_iterator) {
   addCMR(Counter::getCounter(1), "file1", 1, 1, 4, 7);
   addCMR(Counter::getCounter(2), "file1", 5, 8, 9, 1);
   addCMR(Counter::getCounter(3), "file1", 10, 10, 11, 11);
   EXPECT_THAT_ERROR(loadCoverageMapping(), Succeeded());
 
   CoverageData Data = LoadedCoverage->getCoverageForFile("file1");
 
   unsigned Line = 0;
-  unsigned LineCounts[] = {20, 20, 20, 20, 10, 10, 10, 10, 10, 0, 0};
+  unsigned LineCounts[] = {20, 20, 20, 20, 30, 10, 10, 10, 10, 0, 0};
   for (const auto &LCS : getLineCoverageStats(Data)) {
     ASSERT_EQ(Line + 1, LCS.getLine());
     errs() << "Line: " << Line + 1 << ", count = " << LCS.getExecutionCount() << "\n";
     ASSERT_EQ(LineCounts[Line], LCS.getExecutionCount());
     ++Line;
   }
   ASSERT_EQ(11U, Line);
 }