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-rw-r--r--clang/lib/CodeGen/CoverageMappingGen.cpp84
-rw-r--r--clang/test/CoverageMapping/includehell.cpp14
-rw-r--r--clang/test/CoverageMapping/loopmacro.c8
-rw-r--r--clang/test/CoverageMapping/macroception.c49
-rw-r--r--clang/test/CoverageMapping/macroparams.c11
5 files changed, 76 insertions, 90 deletions
diff --git a/clang/lib/CodeGen/CoverageMappingGen.cpp b/clang/lib/CodeGen/CoverageMappingGen.cpp
index b7cbd33a3b9..2bfe0fb8600 100644
--- a/clang/lib/CodeGen/CoverageMappingGen.cpp
+++ b/clang/lib/CodeGen/CoverageMappingGen.cpp
@@ -101,26 +101,19 @@ public:
/// \brief Return true if two regions can be merged together.
bool isMergeable(SourceMappingRegion &R) {
+ // FIXME: We allow merging regions with a gap in between them. Should we?
return File == R.File && MacroArgumentFile == R.MacroArgumentFile &&
Count == R.Count && UnreachableInitiator == R.UnreachableInitiator &&
Group == R.Group;
}
- bool isMergeable(FileID File, FileID MacroArgumentFile, Counter Count,
- const Stmt *UnreachableInitiator, const Stmt *Group) {
- return this->File == File && this->MacroArgumentFile == MacroArgumentFile &&
- this->Count == Count &&
- this->UnreachableInitiator == UnreachableInitiator &&
- this->Group == Group;
- }
-
- /// \brief Merge two regions by extending the 'this' region to cover the
- /// given region.
- void mergeByExtendingTo(SourceMappingRegion &R) {
- LocEnd = R.LocEnd;
- AlternativeLocEnd = R.LocStart;
- if (hasFlag(IgnoreIfNotExtended))
- clearFlag(IgnoreIfNotExtended);
+ /// \brief A comparison that sorts such that mergeable regions are adjacent.
+ friend bool operator<(const SourceMappingRegion &LHS,
+ const SourceMappingRegion &RHS) {
+ return std::tie(LHS.File, LHS.MacroArgumentFile, LHS.Count,
+ LHS.UnreachableInitiator, LHS.Group) <
+ std::tie(RHS.File, RHS.MacroArgumentFile, RHS.Count,
+ RHS.UnreachableInitiator, RHS.Group);
}
};
@@ -169,7 +162,7 @@ public:
/// \brief The coverage mapping regions for this function
llvm::SmallVector<CounterMappingRegion, 32> MappingRegions;
/// \brief The source mapping regions for this function.
- llvm::SmallVector<SourceMappingRegion, 32> SourceRegions;
+ std::vector<SourceMappingRegion> SourceRegions;
CoverageMappingBuilder(CoverageMappingModuleGen &CVM, SourceManager &SM,
const LangOptions &LangOpts)
@@ -327,23 +320,6 @@ public:
/// \brief Exit the current source region group.
void endSourceRegionGroup() { CurrentSourceGroup = nullptr; }
- /// \brief Brings a region that has the same counter and file to the back
- /// of the source regions array.
- void bringSimilarRegionBack(Counter Count, FileID File,
- FileID MacroArgumentFile,
- const Stmt *UnreachableInitiator,
- const Stmt *SourceGroup) {
- for (size_t I = SourceRegions.size(); I != 0;) {
- --I;
- if (SourceRegions[I].isMergeable(File, MacroArgumentFile, Count,
- UnreachableInitiator, SourceGroup)) {
- if (I != SourceRegions.size() - 1)
- std::swap(SourceRegions[I], SourceRegions.back());
- return;
- }
- }
- }
-
/// \brief Associate a counter with a given source code range.
void mapSourceCodeRange(SourceLocation LocStart, SourceLocation LocEnd,
Counter Count, const Stmt *UnreachableInitiator,
@@ -370,15 +346,9 @@ public:
// Make sure that the file id is valid.
if (File.isInvalid())
return;
- bringSimilarRegionBack(Count, File, MacroArgumentFile, UnreachableInitiator,
- SourceGroup);
- SourceMappingRegion R(File, MacroArgumentFile, Count, UnreachableInitiator,
- SourceGroup, LocStart, LocEnd, Flags);
- if (SourceRegions.empty() || !SourceRegions.back().isMergeable(R)) {
- SourceRegions.push_back(R);
- return;
- }
- SourceRegions.back().mergeByExtendingTo(R);
+ SourceRegions.emplace_back(File, MacroArgumentFile, Count,
+ UnreachableInitiator, SourceGroup, LocStart,
+ LocEnd, Flags);
}
void mapSourceCodeRange(SourceLocation LocStart, SourceLocation LocEnd,
@@ -399,14 +369,26 @@ public:
/// \brief Generate the coverage counter mapping regions from collected
/// source regions.
void emitSourceRegions() {
- for (const auto &R : SourceRegions) {
- SourceLocation LocStart = R.getStartLoc();
- SourceLocation LocEnd = R.getEndLoc(SM);
-
- if (R.hasFlag(SourceMappingRegion::IgnoreIfNotExtended) &&
- LocStart == LocEnd)
+ std::sort(SourceRegions.begin(), SourceRegions.end());
+
+ for (auto I = SourceRegions.begin(), E = SourceRegions.end(); I != E; ++I) {
+ // Keep the original start location of this region.
+ SourceLocation LocStart = I->getStartLoc();
+ SourceLocation LocEnd = I->getEndLoc(SM);
+
+ bool Ignore = I->hasFlag(SourceMappingRegion::IgnoreIfNotExtended);
+ // We need to handle mergeable regions together.
+ for (auto Next = I + 1; Next != E && Next->isMergeable(*I); ++Next) {
+ ++I;
+ LocStart = std::min(LocStart, I->getStartLoc());
+ LocEnd = std::max(LocEnd, I->getEndLoc(SM));
+ // FIXME: Should we && together the Ignore flag of multiple regions?
+ Ignore = false;
+ }
+ if (Ignore)
continue;
+ // Find the spilling locations for the mapping region.
LocEnd = getPreciseTokenLocEnd(LocEnd);
unsigned LineStart = SM.getSpellingLineNumber(LocStart);
unsigned ColumnStart = SM.getSpellingColumnNumber(LocStart);
@@ -415,13 +397,13 @@ public:
auto SpellingFile = SM.getDecomposedSpellingLoc(LocStart).first;
unsigned CovFileID;
- if (getCoverageFileID(LocStart, R.getFile(), SpellingFile, CovFileID))
+ if (getCoverageFileID(LocStart, I->getFile(), SpellingFile, CovFileID))
continue;
assert(LineStart <= LineEnd);
MappingRegions.push_back(CounterMappingRegion(
- R.getCounter(), CovFileID, LineStart, ColumnStart, LineEnd, ColumnEnd,
- false, CounterMappingRegion::CodeRegion));
+ I->getCounter(), CovFileID, LineStart, ColumnStart, LineEnd,
+ ColumnEnd, false, CounterMappingRegion::CodeRegion));
}
}
};
diff --git a/clang/test/CoverageMapping/includehell.cpp b/clang/test/CoverageMapping/includehell.cpp
index 4f4028d4543..653f41464db 100644
--- a/clang/test/CoverageMapping/includehell.cpp
+++ b/clang/test/CoverageMapping/includehell.cpp
@@ -1,12 +1,12 @@
// RUN: %clang_cc1 -fprofile-instr-generate -fcoverage-mapping -dump-coverage-mapping -emit-llvm-only -main-file-name includehell.cpp %s | FileCheck %s
-// CHECK: File 0, 1:1 -> 9:7 = #0 (HasCodeBefore = 0)
-// CHECK-NEXT: File 0, 2:13 -> 4:2 = #1 (HasCodeBefore = 0)
-// CHECK-NEXT: File 0, 4:8 -> 6:2 = (#0 - #1) (HasCodeBefore = 0)
-// CHECK-NEXT: File 0, 7:11 -> 9:2 = #2 (HasCodeBefore = 0)
-// CHECK-NEXT: File 0, 9:8 -> 11:2 = (#0 - #2) (HasCodeBefore = 0)
-int main() { // CHECK-NEXT: File 1, [[@LINE]]:12 -> [[@LINE+4]]:2 = #0 (HasCodeBefore = 0)
+int main() { // CHECK: File 0, [[@LINE]]:12 -> [[@LINE+4]]:2 = #0 (HasCodeBefore = 0)
int x = 0;
- #include "Inputs/code.h" // CHECK-NEXT: Expansion,File 1, [[@LINE]]:12 -> [[@LINE]]:27 = #0 (HasCodeBefore = 0, Expanded file = 0)
+ #include "Inputs/code.h" // CHECK-NEXT: Expansion,File 0, [[@LINE]]:12 -> [[@LINE]]:27 = #0 (HasCodeBefore = 0, Expanded file = 1)
return 0;
}
+// CHECK-NEXT: File 1, 1:1 -> 9:7 = #0 (HasCodeBefore = 0)
+// CHECK-NEXT: File 1, 2:13 -> 4:2 = #1 (HasCodeBefore = 0)
+// CHECK-NEXT: File 1, 4:8 -> 6:2 = (#0 - #1) (HasCodeBefore = 0)
+// CHECK-NEXT: File 1, 7:11 -> 9:2 = #2 (HasCodeBefore = 0)
+// CHECK-NEXT: File 1, 9:8 -> 11:2 = (#0 - #2) (HasCodeBefore = 0)
diff --git a/clang/test/CoverageMapping/loopmacro.c b/clang/test/CoverageMapping/loopmacro.c
index cd93878fb7f..8480dbdc37e 100644
--- a/clang/test/CoverageMapping/loopmacro.c
+++ b/clang/test/CoverageMapping/loopmacro.c
@@ -29,12 +29,12 @@ int main() { // CHECK: File 0, [[@LINE]]:12 -> [[
// CHECK-NEXT: File 0, 24:21 -> 24:29 = (#0 + #1) (HasCodeBefore = 0)
// CHECK-NEXT: File 0, 24:31 -> 24:40 = (#0 + #1) (HasCodeBefore = 0)
// CHECK-NEXT: File 1, 10:4 -> 12:23 = (#0 + #1) (HasCodeBefore = 0)
-// CHECK-NEXT: Expansion,File 1, 10:5 -> 10:16 = (#0 + #1) (HasCodeBefore = 0, Expanded file = 3)
+// CHECK-NEXT: Expansion,File 1, 10:5 -> 10:16 = (#0 + #1) (HasCodeBefore = 0, Expanded file = 2)
// CHECK-NEXT: File 1, 10:17 -> 10:22 = (#0 + #1) (HasCodeBefore = 0)
// CHECK-NEXT: File 1, 10:17 -> 10:22 = (#0 + #1) (HasCodeBefore = 0)
// CHECK-NEXT: File 1, 10:24 -> 10:32 = (#0 + #1) (HasCodeBefore = 0)
// CHECK-NEXT: File 1, 10:33 -> 10:36 = (#0 + #1) (HasCodeBefore = 0)
// CHECK-NEXT: File 1, 10:46 -> 10:49 = (#0 + #1) (HasCodeBefore = 0)
-// CHECK-NEXT: File 2, 5:18 -> 5:53 = (#0 + #1) (HasCodeBefore = 0)
-// CHECK-NEXT: File 3, 8:26 -> 8:66 = (#0 + #1) (HasCodeBefore = 0)
-// CHECK-NEXT: Expansion,File 3, 8:38 -> 8:45 = (#0 + #1) (HasCodeBefore = 0, Expanded file = 2)
+// CHECK-NEXT: File 2, 8:26 -> 8:66 = (#0 + #1) (HasCodeBefore = 0)
+// CHECK-NEXT: Expansion,File 2, 8:38 -> 8:45 = (#0 + #1) (HasCodeBefore = 0, Expanded file = 3)
+// CHECK-NEXT: File 3, 5:18 -> 5:53 = (#0 + #1) (HasCodeBefore = 0)
diff --git a/clang/test/CoverageMapping/macroception.c b/clang/test/CoverageMapping/macroception.c
index 7db02be5a68..edbd84a017d 100644
--- a/clang/test/CoverageMapping/macroception.c
+++ b/clang/test/CoverageMapping/macroception.c
@@ -5,33 +5,36 @@
#define M22 }
#define M11 M22
- // CHECK: main
- // CHECK-NEXT: File 0, 3:12 -> 3:13 = #0 (HasCodeBefore = 0)
- // CHECK-NEXT: Expansion,File 1, 4:12 -> 4:14 = #0 (HasCodeBefore = 0, Expanded file = 0)
-int main() M1 // CHECK-NEXT: Expansion,File 2, [[@LINE]]:12 -> [[@LINE]]:14 = #0 (HasCodeBefore = 0, Expanded file = 1)
- return 0; // CHECK-NEXT: File 2, [[@LINE]]:3 -> [[@LINE+1]]:2 = #0 (HasCodeBefore = 0)
+// CHECK-LABEL: main:
+int main() M1 // CHECK-NEXT: Expansion,File 0, [[@LINE]]:12 -> [[@LINE]]:14 = #0 (HasCodeBefore = 0, Expanded file = 2)
+ return 0; // CHECK-NEXT: File 0, [[@LINE]]:3 -> [[@LINE+1]]:2 = #0 (HasCodeBefore = 0)
}
+// CHECK-NEXT: File 1, 3:12 -> 3:13 = #0 (HasCodeBefore = 0)
+// CHECK-NEXT: Expansion,File 2, 4:12 -> 4:14 = #0 (HasCodeBefore = 0, Expanded file = 1)
- // CHECK-NEXT: func2
+
+// CHECK-LABEL: func2:
void func2() { // CHECK-NEXT: File 0, [[@LINE]]:14 -> [[@LINE+1]]:12 = #0 (HasCodeBefore = 0)
int x = 0;
M11 // CHECK-NEXT: Expansion,File 0, [[@LINE]]:1 -> [[@LINE]]:4 = #0 (HasCodeBefore = 0, Expanded file = 2)
- // CHECK-NEXT: File 1, 5:13 -> 5:14 = #0 (HasCodeBefore = 0)
- // CHECK-NEXT: Expansion,File 2, 6:13 -> 6:16 = #0 (HasCodeBefore = 0, Expanded file = 1)
+// CHECK-NEXT: File 1, 5:13 -> 5:14 = #0 (HasCodeBefore = 0)
+// CHECK-NEXT: Expansion,File 2, 6:13 -> 6:16 = #0 (HasCodeBefore = 0, Expanded file = 1)
+
+// CHECK-LABEL: func3:
+void func3() M1 // CHECK-NEXT: Expansion,File 0, [[@LINE]]:14 -> [[@LINE]]:16 = #0 (HasCodeBefore = 0, Expanded file = 2)
+ int x = 0; // CHECK-NEXT: File 0, [[@LINE]]:3 -> [[@LINE]]:12 = #0 (HasCodeBefore = 0)
+M11 // CHECK-NEXT: Expansion,File 0, [[@LINE]]:1 -> [[@LINE]]:4 = #0 (HasCodeBefore = 0, Expanded file = 4)
- // CHECK-NEXT: func3
- // CHECK-NEXT: File 0, 3:12 -> 3:13 = #0 (HasCodeBefore = 0)
- // CHECK-NEXT: Expansion,File 1, 4:12 -> 4:14 = #0 (HasCodeBefore = 0, Expanded file = 0)
-void func3() M1 // CHECK-NEXT: Expansion,File 2, [[@LINE]]:14 -> [[@LINE]]:16 = #0 (HasCodeBefore = 0, Expanded file = 1)
- int x = 0; // CHECK-NEXT: File 2, [[@LINE]]:3 -> [[@LINE]]:12 = #0 (HasCodeBefore = 0)
-M11 // CHECK-NEXT: Expansion,File 2, [[@LINE]]:1 -> [[@LINE]]:4 = #0 (HasCodeBefore = 0, Expanded file = 4)
- // CHECK-NEXT: File 3, 5:13 -> 5:14 = #0 (HasCodeBefore = 0)
- // CHECK-NEXT: Expansion,File 4, 6:13 -> 6:16 = #0 (HasCodeBefore = 0, Expanded file = 3)
+// CHECK-NEXT: File 1, 3:12 -> 3:13 = #0 (HasCodeBefore = 0)
+// CHECK-NEXT: Expansion,File 2, 4:12 -> 4:14 = #0 (HasCodeBefore = 0, Expanded file = 1)
+// CHECK-NEXT: File 3, 5:13 -> 5:14 = #0 (HasCodeBefore = 0)
+// CHECK-NEXT: Expansion,File 4, 6:13 -> 6:16 = #0 (HasCodeBefore = 0, Expanded file = 3)
- // CHECK-NEXT: func4
- // CHECK-NEXT: File 0, 3:12 -> 3:13 = #0 (HasCodeBefore = 0)
- // CHECK-NEXT: Expansion,File 1, 4:12 -> 4:14 = #0 (HasCodeBefore = 0, Expanded file = 0)
- // CHECK-NEXT: Expansion,File 2, [[@LINE+1]]:14 -> [[@LINE+1]]:16 = #0 (HasCodeBefore = 0, Expanded file = 1)
-void func4() M1 M11 // CHECK-NEXT: Expansion,File 2, [[@LINE]]:17 -> [[@LINE]]:20 = #0 (HasCodeBefore = 0, Expanded file = 4)
- // CHECK-NEXT: File 3, 5:13 -> 5:14 = #0 (HasCodeBefore = 0)
- // CHECK-NEXT: Expansion,File 4, 6:13 -> 6:16 = #0 (HasCodeBefore = 0, Expanded file = 3)
+// CHECK-LABEL: func4:
+// CHECK-NEXT: File 0, 3:12 -> 3:13 = #0 (HasCodeBefore = 0)
+// CHECK-NEXT: Expansion,File 1, 4:12 -> 4:14 = #0 (HasCodeBefore = 0, Expanded file = 0)
+void func4() M1 M11
+// CHECK-NEXT: Expansion,File 2, [[@LINE-1]]:14 -> [[@LINE-1]]:16 = #0 (HasCodeBefore = 0, Expanded file = 1)
+// CHECK-NEXT: Expansion,File 2, [[@LINE-2]]:17 -> [[@LINE-2]]:20 = #0 (HasCodeBefore = 0, Expanded file = 4)
+// CHECK-NEXT: File 3, 5:13 -> 5:14 = #0 (HasCodeBefore = 0)
+// CHECK-NEXT: Expansion,File 4, 6:13 -> 6:16 = #0 (HasCodeBefore = 0, Expanded file = 3)
diff --git a/clang/test/CoverageMapping/macroparams.c b/clang/test/CoverageMapping/macroparams.c
index b28aca3ed7a..adf01ec09b8 100644
--- a/clang/test/CoverageMapping/macroparams.c
+++ b/clang/test/CoverageMapping/macroparams.c
@@ -1,11 +1,12 @@
// RUN: %clang_cc1 -fprofile-instr-generate -fcoverage-mapping -dump-coverage-mapping -emit-llvm-only -main-file-name macroparams.c %s | FileCheck %s
-#define MACRO2(X2) (X2 + 2) // CHECK: File 0, [[@LINE]]:20 -> [[@LINE]]:28 = #0 (HasCodeBefore = 0)
-#define MACRO(X) MACRO2(x) // CHECK-NEXT: Expansion,File 1, [[@LINE]]:18 -> [[@LINE]]:24 = #0 (HasCodeBefore = 0, Expanded file = 0)
- // CHECK-NEXT: File 1, [[@LINE-1]]:25 -> [[@LINE-1]]:26 = #0 (HasCodeBefore = 0)
+#define MACRO2(X2) (X2 + 2) // CHECK-DAG: File 2, [[@LINE]]:20 -> [[@LINE]]:28 = #0 (HasCodeBefore = 0)
+#define MACRO(X) MACRO2(x) // CHECK-DAG: File 1, [[@LINE]]:25 -> [[@LINE]]:26 = #0 (HasCodeBefore = 0)
+ // CHECK-DAG: Expansion,File 1, [[@LINE-1]]:18 -> [[@LINE-1]]:24 = #0 (HasCodeBefore = 0, Expanded file = 2)
-int main() { // CHECK-NEXT: File 2, [[@LINE]]:12 -> [[@LINE+4]]:2 = #0 (HasCodeBefore = 0)
+
+int main() { // CHECK-DAG: File 0, [[@LINE]]:12 -> [[@LINE+4]]:2 = #0 (HasCodeBefore = 0)
int x = 0;
- MACRO(x); // CHECK-NEXT: Expansion,File 2, [[@LINE]]:3 -> [[@LINE]]:8 = #0 (HasCodeBefore = 0, Expanded file = 1)
+ MACRO(x); // CHECK-DAG: Expansion,File 0, [[@LINE]]:3 -> [[@LINE]]:8 = #0 (HasCodeBefore = 0, Expanded file = 1)
return 0;
}
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