https://github.com/chapuni updated
https://github.com/llvm/llvm-project/pull/110972
>From 178b57cbbcb2b21b7d13f90ffd75903417913438 Mon Sep 17 00:00:00 2001
From: NAKAMURA Takumi <geek4ci...@gmail.com>
Date: Wed, 2 Oct 2024 23:11:36 +0900
Subject: [PATCH 1/5] [Coverage] Move SingleByteCoverage out of CountedRegion
`SingleByteCoverage` is not per-region attribute at least.
At the moment, this change moves it into `FunctionRecord`.
---
.../ProfileData/Coverage/CoverageMapping.h | 27 +++++++-------
.../ProfileData/Coverage/CoverageMapping.cpp | 36 ++++++++++++-------
2 files changed, 36 insertions(+), 27 deletions(-)
diff --git a/llvm/include/llvm/ProfileData/Coverage/CoverageMapping.h
b/llvm/include/llvm/ProfileData/Coverage/CoverageMapping.h
index fa07b3a9e8b14f..77c447efe1a7c9 100644
--- a/llvm/include/llvm/ProfileData/Coverage/CoverageMapping.h
+++ b/llvm/include/llvm/ProfileData/Coverage/CoverageMapping.h
@@ -359,19 +359,15 @@ struct CountedRegion : public CounterMappingRegion {
uint64_t ExecutionCount;
uint64_t FalseExecutionCount;
bool Folded;
- bool HasSingleByteCoverage;
- CountedRegion(const CounterMappingRegion &R, uint64_t ExecutionCount,
- bool HasSingleByteCoverage)
+ CountedRegion(const CounterMappingRegion &R, uint64_t ExecutionCount)
: CounterMappingRegion(R), ExecutionCount(ExecutionCount),
- FalseExecutionCount(0), Folded(false),
- HasSingleByteCoverage(HasSingleByteCoverage) {}
+ FalseExecutionCount(0), Folded(false) {}
CountedRegion(const CounterMappingRegion &R, uint64_t ExecutionCount,
- uint64_t FalseExecutionCount, bool HasSingleByteCoverage)
+ uint64_t FalseExecutionCount)
: CounterMappingRegion(R), ExecutionCount(ExecutionCount),
- FalseExecutionCount(FalseExecutionCount), Folded(false),
- HasSingleByteCoverage(HasSingleByteCoverage) {}
+ FalseExecutionCount(FalseExecutionCount), Folded(false) {}
};
/// MCDC Record grouping all information together.
@@ -702,9 +698,12 @@ struct FunctionRecord {
std::vector<MCDCRecord> MCDCRecords;
/// The number of times this function was executed.
uint64_t ExecutionCount = 0;
+ bool SingleByteCoverage;
- FunctionRecord(StringRef Name, ArrayRef<StringRef> Filenames)
- : Name(Name), Filenames(Filenames.begin(), Filenames.end()) {}
+ FunctionRecord(StringRef Name, ArrayRef<StringRef> Filenames,
+ bool SingleByteCoverage)
+ : Name(Name), Filenames(Filenames.begin(), Filenames.end()),
+ SingleByteCoverage(SingleByteCoverage) {}
FunctionRecord(FunctionRecord &&FR) = default;
FunctionRecord &operator=(FunctionRecord &&) = default;
@@ -714,11 +713,10 @@ struct FunctionRecord {
}
void pushRegion(CounterMappingRegion Region, uint64_t Count,
- uint64_t FalseCount, bool HasSingleByteCoverage) {
+ uint64_t FalseCount) {
if (Region.Kind == CounterMappingRegion::BranchRegion ||
Region.Kind == CounterMappingRegion::MCDCBranchRegion) {
- CountedBranchRegions.emplace_back(Region, Count, FalseCount,
- HasSingleByteCoverage);
+ CountedBranchRegions.emplace_back(Region, Count, FalseCount);
// If both counters are hard-coded to zero, then this region represents a
// constant-folded branch.
if (Region.Count.isZero() && Region.FalseCount.isZero())
@@ -727,8 +725,7 @@ struct FunctionRecord {
}
if (CountedRegions.empty())
ExecutionCount = Count;
- CountedRegions.emplace_back(Region, Count, FalseCount,
- HasSingleByteCoverage);
+ CountedRegions.emplace_back(Region, Count, FalseCount);
}
};
diff --git a/llvm/lib/ProfileData/Coverage/CoverageMapping.cpp
b/llvm/lib/ProfileData/Coverage/CoverageMapping.cpp
index 18643c6b44485e..a02136d5b0386d 100644
--- a/llvm/lib/ProfileData/Coverage/CoverageMapping.cpp
+++ b/llvm/lib/ProfileData/Coverage/CoverageMapping.cpp
@@ -808,6 +808,7 @@ Error CoverageMapping::loadFunctionRecord(
else
OrigFuncName = getFuncNameWithoutPrefix(OrigFuncName, Record.Filenames[0]);
+ bool SingleByteCoverage = ProfileReader.hasSingleByteCoverage();
CounterMappingContext Ctx(Record.Expressions);
std::vector<uint64_t> Counts;
@@ -855,7 +856,7 @@ Error CoverageMapping::loadFunctionRecord(
return Error::success();
MCDCDecisionRecorder MCDCDecisions;
- FunctionRecord Function(OrigFuncName, Record.Filenames);
+ FunctionRecord Function(OrigFuncName, Record.Filenames, SingleByteCoverage);
for (const auto &Region : Record.MappingRegions) {
// MCDCDecisionRegion should be handled first since it overlaps with
// others inside.
@@ -873,8 +874,7 @@ Error CoverageMapping::loadFunctionRecord(
consumeError(std::move(E));
return Error::success();
}
- Function.pushRegion(Region, *ExecutionCount, *AltExecutionCount,
- ProfileReader.hasSingleByteCoverage());
+ Function.pushRegion(Region, *ExecutionCount, *AltExecutionCount);
// Record ExpansionRegion.
if (Region.Kind == CounterMappingRegion::ExpansionRegion) {
@@ -1270,7 +1270,8 @@ class SegmentBuilder {
/// Combine counts of regions which cover the same area.
static ArrayRef<CountedRegion>
- combineRegions(MutableArrayRef<CountedRegion> Regions) {
+ combineRegions(MutableArrayRef<CountedRegion> Regions,
+ bool SingleByteCoverage) {
if (Regions.empty())
return Regions;
auto Active = Regions.begin();
@@ -1297,9 +1298,7 @@ class SegmentBuilder {
// We add counts of the regions of the same kind as the active region
// to handle the both situations.
if (I->Kind == Active->Kind) {
- assert(I->HasSingleByteCoverage == Active->HasSingleByteCoverage &&
- "Regions are generated in different coverage modes");
- if (I->HasSingleByteCoverage)
+ if (SingleByteCoverage)
Active->ExecutionCount = Active->ExecutionCount || I->ExecutionCount;
else
Active->ExecutionCount += I->ExecutionCount;
@@ -1311,12 +1310,14 @@ class SegmentBuilder {
public:
/// Build a sorted list of CoverageSegments from a list of Regions.
static std::vector<CoverageSegment>
- buildSegments(MutableArrayRef<CountedRegion> Regions) {
+ buildSegments(MutableArrayRef<CountedRegion> Regions,
+ bool SingleByteCoverage) {
std::vector<CoverageSegment> Segments;
SegmentBuilder Builder(Segments);
sortNestedRegions(Regions);
- ArrayRef<CountedRegion> CombinedRegions = combineRegions(Regions);
+ ArrayRef<CountedRegion> CombinedRegions =
+ combineRegions(Regions, SingleByteCoverage);
LLVM_DEBUG({
dbgs() << "Combined regions:\n";
@@ -1403,10 +1404,14 @@ CoverageData
CoverageMapping::getCoverageForFile(StringRef Filename) const {
// the filename, we may get back some records that are not in the file.
ArrayRef<unsigned> RecordIndices =
getImpreciseRecordIndicesForFilename(Filename);
+ std::optional<bool> SingleByteCoverage;
for (unsigned RecordIndex : RecordIndices) {
const FunctionRecord &Function = Functions[RecordIndex];
auto MainFileID = findMainViewFileID(Filename, Function);
auto FileIDs = gatherFileIDs(Filename, Function);
+ assert(!SingleByteCoverage ||
+ *SingleByteCoverage == Function.SingleByteCoverage);
+ SingleByteCoverage = Function.SingleByteCoverage;
for (const auto &CR : Function.CountedRegions)
if (FileIDs.test(CR.FileID)) {
Regions.push_back(CR);
@@ -1424,7 +1429,8 @@ CoverageData
CoverageMapping::getCoverageForFile(StringRef Filename) const {
}
LLVM_DEBUG(dbgs() << "Emitting segments for file: " << Filename << "\n");
- FileCoverage.Segments = SegmentBuilder::buildSegments(Regions);
+ FileCoverage.Segments =
+ SegmentBuilder::buildSegments(Regions, *SingleByteCoverage);
return FileCoverage;
}
@@ -1480,7 +1486,8 @@ CoverageMapping::getCoverageForFunction(const
FunctionRecord &Function) const {
LLVM_DEBUG(dbgs() << "Emitting segments for function: " << Function.Name
<< "\n");
- FunctionCoverage.Segments = SegmentBuilder::buildSegments(Regions);
+ FunctionCoverage.Segments =
+ SegmentBuilder::buildSegments(Regions, Function.SingleByteCoverage);
return FunctionCoverage;
}
@@ -1490,8 +1497,12 @@ CoverageData CoverageMapping::getCoverageForExpansion(
CoverageData ExpansionCoverage(
Expansion.Function.Filenames[Expansion.FileID]);
std::vector<CountedRegion> Regions;
+ std::optional<bool> SingleByteCoverage;
for (const auto &CR : Expansion.Function.CountedRegions)
if (CR.FileID == Expansion.FileID) {
+ assert(!SingleByteCoverage ||
+ *SingleByteCoverage == Expansion.Function.SingleByteCoverage);
+ SingleByteCoverage = Expansion.Function.SingleByteCoverage;
Regions.push_back(CR);
if (isExpansion(CR, Expansion.FileID))
ExpansionCoverage.Expansions.emplace_back(CR, Expansion.Function);
@@ -1503,7 +1514,8 @@ CoverageData CoverageMapping::getCoverageForExpansion(
LLVM_DEBUG(dbgs() << "Emitting segments for expansion of file "
<< Expansion.FileID << "\n");
- ExpansionCoverage.Segments = SegmentBuilder::buildSegments(Regions);
+ ExpansionCoverage.Segments =
+ SegmentBuilder::buildSegments(Regions, *SingleByteCoverage);
return ExpansionCoverage;
}
>From aacb50ddf87d96b4a0644c7ef5d0a86dc94f069b Mon Sep 17 00:00:00 2001
From: NAKAMURA Takumi <geek4ci...@gmail.com>
Date: Wed, 2 Oct 2024 23:25:52 +0900
Subject: [PATCH 2/5] [Coverage] Make SingleByteCoverage work consistent to
merging
- Round `Counts` as 1/0
- Confirm both `ExecutionCount` and `AltExecutionCount` are in range.
---
compiler-rt/test/profile/instrprof-block-coverage.c | 2 +-
compiler-rt/test/profile/instrprof-entry-coverage.c | 2 +-
llvm/include/llvm/ProfileData/InstrProf.h | 5 ++++-
llvm/lib/ProfileData/Coverage/CoverageMapping.cpp | 3 +++
llvm/lib/ProfileData/InstrProf.cpp | 2 +-
llvm/lib/ProfileData/InstrProfReader.cpp | 1 +
6 files changed, 11 insertions(+), 4 deletions(-)
diff --git a/compiler-rt/test/profile/instrprof-block-coverage.c
b/compiler-rt/test/profile/instrprof-block-coverage.c
index 829d5af8dc3f9e..8d924e1cac64d8 100644
--- a/compiler-rt/test/profile/instrprof-block-coverage.c
+++ b/compiler-rt/test/profile/instrprof-block-coverage.c
@@ -49,4 +49,4 @@ int main(int argc, char *argv[]) {
// CHECK-ERROR-NOT: warning: {{.*}}: Found inconsistent block coverage
-// COUNTS: Maximum function count: 4
+// COUNTS: Maximum function count: 1
diff --git a/compiler-rt/test/profile/instrprof-entry-coverage.c
b/compiler-rt/test/profile/instrprof-entry-coverage.c
index 1c6816ba01964b..b93a4e0c43ccd6 100644
--- a/compiler-rt/test/profile/instrprof-entry-coverage.c
+++ b/compiler-rt/test/profile/instrprof-entry-coverage.c
@@ -36,4 +36,4 @@ int main(int argc, char *argv[]) {
// CHECK-DAG: foo
// CHECK-DAG: bar
-// COUNTS: Maximum function count: 2
+// COUNTS: Maximum function count: 1
diff --git a/llvm/include/llvm/ProfileData/InstrProf.h
b/llvm/include/llvm/ProfileData/InstrProf.h
index b0b2258735e2ae..df9e76966bf42b 100644
--- a/llvm/include/llvm/ProfileData/InstrProf.h
+++ b/llvm/include/llvm/ProfileData/InstrProf.h
@@ -830,6 +830,7 @@ struct InstrProfValueSiteRecord {
/// Profiling information for a single function.
struct InstrProfRecord {
std::vector<uint64_t> Counts;
+ bool SingleByteCoverage = false;
std::vector<uint8_t> BitmapBytes;
InstrProfRecord() = default;
@@ -839,13 +840,15 @@ struct InstrProfRecord {
: Counts(std::move(Counts)), BitmapBytes(std::move(BitmapBytes)) {}
InstrProfRecord(InstrProfRecord &&) = default;
InstrProfRecord(const InstrProfRecord &RHS)
- : Counts(RHS.Counts), BitmapBytes(RHS.BitmapBytes),
+ : Counts(RHS.Counts), SingleByteCoverage(RHS.SingleByteCoverage),
+ BitmapBytes(RHS.BitmapBytes),
ValueData(RHS.ValueData
? std::make_unique<ValueProfData>(*RHS.ValueData)
: nullptr) {}
InstrProfRecord &operator=(InstrProfRecord &&) = default;
InstrProfRecord &operator=(const InstrProfRecord &RHS) {
Counts = RHS.Counts;
+ SingleByteCoverage = RHS.SingleByteCoverage;
BitmapBytes = RHS.BitmapBytes;
if (!RHS.ValueData) {
ValueData = nullptr;
diff --git a/llvm/lib/ProfileData/Coverage/CoverageMapping.cpp
b/llvm/lib/ProfileData/Coverage/CoverageMapping.cpp
index a02136d5b0386d..bc765c59381718 100644
--- a/llvm/lib/ProfileData/Coverage/CoverageMapping.cpp
+++ b/llvm/lib/ProfileData/Coverage/CoverageMapping.cpp
@@ -874,6 +874,9 @@ Error CoverageMapping::loadFunctionRecord(
consumeError(std::move(E));
return Error::success();
}
+ assert(!SingleByteCoverage ||
+ (0 <= *ExecutionCount && *ExecutionCount <= 1 &&
+ 0 <= *AltExecutionCount && *AltExecutionCount <= 1));
Function.pushRegion(Region, *ExecutionCount, *AltExecutionCount);
// Record ExpansionRegion.
diff --git a/llvm/lib/ProfileData/InstrProf.cpp
b/llvm/lib/ProfileData/InstrProf.cpp
index b9937c9429b77d..0f6677b4d35718 100644
--- a/llvm/lib/ProfileData/InstrProf.cpp
+++ b/llvm/lib/ProfileData/InstrProf.cpp
@@ -952,7 +952,7 @@ void InstrProfRecord::merge(InstrProfRecord &Other,
uint64_t Weight,
Value = getInstrMaxCountValue();
Overflowed = true;
}
- Counts[I] = Value;
+ Counts[I] = (SingleByteCoverage && Value != 0 ? 1 : Value);
if (Overflowed)
Warn(instrprof_error::counter_overflow);
}
diff --git a/llvm/lib/ProfileData/InstrProfReader.cpp
b/llvm/lib/ProfileData/InstrProfReader.cpp
index b90617c74f6d13..a07d7f573275ba 100644
--- a/llvm/lib/ProfileData/InstrProfReader.cpp
+++ b/llvm/lib/ProfileData/InstrProfReader.cpp
@@ -743,6 +743,7 @@ Error RawInstrProfReader<IntPtrT>::readRawCounts(
Record.Counts.clear();
Record.Counts.reserve(NumCounters);
+ Record.SingleByteCoverage = hasSingleByteCoverage();
for (uint32_t I = 0; I < NumCounters; I++) {
const char *Ptr =
CountersStart + CounterBaseOffset + I * getCounterTypeSize();
>From b9bbc7cac3076594cd326ffa7f2d4fc4a92fabb9 Mon Sep 17 00:00:00 2001
From: NAKAMURA Takumi <geek4ci...@gmail.com>
Date: Sat, 5 Oct 2024 10:43:26 +0900
Subject: [PATCH 3/5] Rework. (Also reverts "[Coverage] Move
SingleByteCoverage out of CountedRegion")
---
.../test/profile/instrprof-block-coverage.c | 2 +-
.../test/profile/instrprof-entry-coverage.c | 2 +-
.../ProfileData/Coverage/CoverageMapping.h | 27 +++++++------
llvm/include/llvm/ProfileData/InstrProf.h | 5 +--
.../ProfileData/Coverage/CoverageMapping.cpp | 40 +++++++------------
llvm/lib/ProfileData/InstrProf.cpp | 2 +-
llvm/lib/ProfileData/InstrProfReader.cpp | 1 -
7 files changed, 33 insertions(+), 46 deletions(-)
diff --git a/compiler-rt/test/profile/instrprof-block-coverage.c
b/compiler-rt/test/profile/instrprof-block-coverage.c
index 8d924e1cac64d8..829d5af8dc3f9e 100644
--- a/compiler-rt/test/profile/instrprof-block-coverage.c
+++ b/compiler-rt/test/profile/instrprof-block-coverage.c
@@ -49,4 +49,4 @@ int main(int argc, char *argv[]) {
// CHECK-ERROR-NOT: warning: {{.*}}: Found inconsistent block coverage
-// COUNTS: Maximum function count: 1
+// COUNTS: Maximum function count: 4
diff --git a/compiler-rt/test/profile/instrprof-entry-coverage.c
b/compiler-rt/test/profile/instrprof-entry-coverage.c
index b93a4e0c43ccd6..1c6816ba01964b 100644
--- a/compiler-rt/test/profile/instrprof-entry-coverage.c
+++ b/compiler-rt/test/profile/instrprof-entry-coverage.c
@@ -36,4 +36,4 @@ int main(int argc, char *argv[]) {
// CHECK-DAG: foo
// CHECK-DAG: bar
-// COUNTS: Maximum function count: 1
+// COUNTS: Maximum function count: 2
diff --git a/llvm/include/llvm/ProfileData/Coverage/CoverageMapping.h
b/llvm/include/llvm/ProfileData/Coverage/CoverageMapping.h
index 77c447efe1a7c9..fa07b3a9e8b14f 100644
--- a/llvm/include/llvm/ProfileData/Coverage/CoverageMapping.h
+++ b/llvm/include/llvm/ProfileData/Coverage/CoverageMapping.h
@@ -359,15 +359,19 @@ struct CountedRegion : public CounterMappingRegion {
uint64_t ExecutionCount;
uint64_t FalseExecutionCount;
bool Folded;
+ bool HasSingleByteCoverage;
- CountedRegion(const CounterMappingRegion &R, uint64_t ExecutionCount)
+ CountedRegion(const CounterMappingRegion &R, uint64_t ExecutionCount,
+ bool HasSingleByteCoverage)
: CounterMappingRegion(R), ExecutionCount(ExecutionCount),
- FalseExecutionCount(0), Folded(false) {}
+ FalseExecutionCount(0), Folded(false),
+ HasSingleByteCoverage(HasSingleByteCoverage) {}
CountedRegion(const CounterMappingRegion &R, uint64_t ExecutionCount,
- uint64_t FalseExecutionCount)
+ uint64_t FalseExecutionCount, bool HasSingleByteCoverage)
: CounterMappingRegion(R), ExecutionCount(ExecutionCount),
- FalseExecutionCount(FalseExecutionCount), Folded(false) {}
+ FalseExecutionCount(FalseExecutionCount), Folded(false),
+ HasSingleByteCoverage(HasSingleByteCoverage) {}
};
/// MCDC Record grouping all information together.
@@ -698,12 +702,9 @@ struct FunctionRecord {
std::vector<MCDCRecord> MCDCRecords;
/// The number of times this function was executed.
uint64_t ExecutionCount = 0;
- bool SingleByteCoverage;
- FunctionRecord(StringRef Name, ArrayRef<StringRef> Filenames,
- bool SingleByteCoverage)
- : Name(Name), Filenames(Filenames.begin(), Filenames.end()),
- SingleByteCoverage(SingleByteCoverage) {}
+ FunctionRecord(StringRef Name, ArrayRef<StringRef> Filenames)
+ : Name(Name), Filenames(Filenames.begin(), Filenames.end()) {}
FunctionRecord(FunctionRecord &&FR) = default;
FunctionRecord &operator=(FunctionRecord &&) = default;
@@ -713,10 +714,11 @@ struct FunctionRecord {
}
void pushRegion(CounterMappingRegion Region, uint64_t Count,
- uint64_t FalseCount) {
+ uint64_t FalseCount, bool HasSingleByteCoverage) {
if (Region.Kind == CounterMappingRegion::BranchRegion ||
Region.Kind == CounterMappingRegion::MCDCBranchRegion) {
- CountedBranchRegions.emplace_back(Region, Count, FalseCount);
+ CountedBranchRegions.emplace_back(Region, Count, FalseCount,
+ HasSingleByteCoverage);
// If both counters are hard-coded to zero, then this region represents a
// constant-folded branch.
if (Region.Count.isZero() && Region.FalseCount.isZero())
@@ -725,7 +727,8 @@ struct FunctionRecord {
}
if (CountedRegions.empty())
ExecutionCount = Count;
- CountedRegions.emplace_back(Region, Count, FalseCount);
+ CountedRegions.emplace_back(Region, Count, FalseCount,
+ HasSingleByteCoverage);
}
};
diff --git a/llvm/include/llvm/ProfileData/InstrProf.h
b/llvm/include/llvm/ProfileData/InstrProf.h
index df9e76966bf42b..b0b2258735e2ae 100644
--- a/llvm/include/llvm/ProfileData/InstrProf.h
+++ b/llvm/include/llvm/ProfileData/InstrProf.h
@@ -830,7 +830,6 @@ struct InstrProfValueSiteRecord {
/// Profiling information for a single function.
struct InstrProfRecord {
std::vector<uint64_t> Counts;
- bool SingleByteCoverage = false;
std::vector<uint8_t> BitmapBytes;
InstrProfRecord() = default;
@@ -840,15 +839,13 @@ struct InstrProfRecord {
: Counts(std::move(Counts)), BitmapBytes(std::move(BitmapBytes)) {}
InstrProfRecord(InstrProfRecord &&) = default;
InstrProfRecord(const InstrProfRecord &RHS)
- : Counts(RHS.Counts), SingleByteCoverage(RHS.SingleByteCoverage),
- BitmapBytes(RHS.BitmapBytes),
+ : Counts(RHS.Counts), BitmapBytes(RHS.BitmapBytes),
ValueData(RHS.ValueData
? std::make_unique<ValueProfData>(*RHS.ValueData)
: nullptr) {}
InstrProfRecord &operator=(InstrProfRecord &&) = default;
InstrProfRecord &operator=(const InstrProfRecord &RHS) {
Counts = RHS.Counts;
- SingleByteCoverage = RHS.SingleByteCoverage;
BitmapBytes = RHS.BitmapBytes;
if (!RHS.ValueData) {
ValueData = nullptr;
diff --git a/llvm/lib/ProfileData/Coverage/CoverageMapping.cpp
b/llvm/lib/ProfileData/Coverage/CoverageMapping.cpp
index bc765c59381718..9a03dede84b6df 100644
--- a/llvm/lib/ProfileData/Coverage/CoverageMapping.cpp
+++ b/llvm/lib/ProfileData/Coverage/CoverageMapping.cpp
@@ -856,7 +856,7 @@ Error CoverageMapping::loadFunctionRecord(
return Error::success();
MCDCDecisionRecorder MCDCDecisions;
- FunctionRecord Function(OrigFuncName, Record.Filenames, SingleByteCoverage);
+ FunctionRecord Function(OrigFuncName, Record.Filenames);
for (const auto &Region : Record.MappingRegions) {
// MCDCDecisionRegion should be handled first since it overlaps with
// others inside.
@@ -874,10 +874,10 @@ Error CoverageMapping::loadFunctionRecord(
consumeError(std::move(E));
return Error::success();
}
- assert(!SingleByteCoverage ||
- (0 <= *ExecutionCount && *ExecutionCount <= 1 &&
- 0 <= *AltExecutionCount && *AltExecutionCount <= 1));
- Function.pushRegion(Region, *ExecutionCount, *AltExecutionCount);
+ Function.pushRegion(
+ Region, (SingleByteCoverage && *ExecutionCount ? 1 : *ExecutionCount),
+ (SingleByteCoverage && *AltExecutionCount ? 1 : *AltExecutionCount),
+ SingleByteCoverage);
// Record ExpansionRegion.
if (Region.Kind == CounterMappingRegion::ExpansionRegion) {
@@ -1273,8 +1273,7 @@ class SegmentBuilder {
/// Combine counts of regions which cover the same area.
static ArrayRef<CountedRegion>
- combineRegions(MutableArrayRef<CountedRegion> Regions,
- bool SingleByteCoverage) {
+ combineRegions(MutableArrayRef<CountedRegion> Regions) {
if (Regions.empty())
return Regions;
auto Active = Regions.begin();
@@ -1301,7 +1300,9 @@ class SegmentBuilder {
// We add counts of the regions of the same kind as the active region
// to handle the both situations.
if (I->Kind == Active->Kind) {
- if (SingleByteCoverage)
+ assert(I->HasSingleByteCoverage == Active->HasSingleByteCoverage &&
+ "Regions are generated in different coverage modes");
+ if (I->HasSingleByteCoverage)
Active->ExecutionCount = Active->ExecutionCount || I->ExecutionCount;
else
Active->ExecutionCount += I->ExecutionCount;
@@ -1313,14 +1314,12 @@ class SegmentBuilder {
public:
/// Build a sorted list of CoverageSegments from a list of Regions.
static std::vector<CoverageSegment>
- buildSegments(MutableArrayRef<CountedRegion> Regions,
- bool SingleByteCoverage) {
+ buildSegments(MutableArrayRef<CountedRegion> Regions) {
std::vector<CoverageSegment> Segments;
SegmentBuilder Builder(Segments);
sortNestedRegions(Regions);
- ArrayRef<CountedRegion> CombinedRegions =
- combineRegions(Regions, SingleByteCoverage);
+ ArrayRef<CountedRegion> CombinedRegions = combineRegions(Regions);
LLVM_DEBUG({
dbgs() << "Combined regions:\n";
@@ -1407,14 +1406,10 @@ CoverageData
CoverageMapping::getCoverageForFile(StringRef Filename) const {
// the filename, we may get back some records that are not in the file.
ArrayRef<unsigned> RecordIndices =
getImpreciseRecordIndicesForFilename(Filename);
- std::optional<bool> SingleByteCoverage;
for (unsigned RecordIndex : RecordIndices) {
const FunctionRecord &Function = Functions[RecordIndex];
auto MainFileID = findMainViewFileID(Filename, Function);
auto FileIDs = gatherFileIDs(Filename, Function);
- assert(!SingleByteCoverage ||
- *SingleByteCoverage == Function.SingleByteCoverage);
- SingleByteCoverage = Function.SingleByteCoverage;
for (const auto &CR : Function.CountedRegions)
if (FileIDs.test(CR.FileID)) {
Regions.push_back(CR);
@@ -1432,8 +1427,7 @@ CoverageData
CoverageMapping::getCoverageForFile(StringRef Filename) const {
}
LLVM_DEBUG(dbgs() << "Emitting segments for file: " << Filename << "\n");
- FileCoverage.Segments =
- SegmentBuilder::buildSegments(Regions, *SingleByteCoverage);
+ FileCoverage.Segments = SegmentBuilder::buildSegments(Regions);
return FileCoverage;
}
@@ -1489,8 +1483,7 @@ CoverageMapping::getCoverageForFunction(const
FunctionRecord &Function) const {
LLVM_DEBUG(dbgs() << "Emitting segments for function: " << Function.Name
<< "\n");
- FunctionCoverage.Segments =
- SegmentBuilder::buildSegments(Regions, Function.SingleByteCoverage);
+ FunctionCoverage.Segments = SegmentBuilder::buildSegments(Regions);
return FunctionCoverage;
}
@@ -1500,12 +1493,8 @@ CoverageData CoverageMapping::getCoverageForExpansion(
CoverageData ExpansionCoverage(
Expansion.Function.Filenames[Expansion.FileID]);
std::vector<CountedRegion> Regions;
- std::optional<bool> SingleByteCoverage;
for (const auto &CR : Expansion.Function.CountedRegions)
if (CR.FileID == Expansion.FileID) {
- assert(!SingleByteCoverage ||
- *SingleByteCoverage == Expansion.Function.SingleByteCoverage);
- SingleByteCoverage = Expansion.Function.SingleByteCoverage;
Regions.push_back(CR);
if (isExpansion(CR, Expansion.FileID))
ExpansionCoverage.Expansions.emplace_back(CR, Expansion.Function);
@@ -1517,8 +1506,7 @@ CoverageData CoverageMapping::getCoverageForExpansion(
LLVM_DEBUG(dbgs() << "Emitting segments for expansion of file "
<< Expansion.FileID << "\n");
- ExpansionCoverage.Segments =
- SegmentBuilder::buildSegments(Regions, *SingleByteCoverage);
+ ExpansionCoverage.Segments = SegmentBuilder::buildSegments(Regions);
return ExpansionCoverage;
}
diff --git a/llvm/lib/ProfileData/InstrProf.cpp
b/llvm/lib/ProfileData/InstrProf.cpp
index 0f6677b4d35718..b9937c9429b77d 100644
--- a/llvm/lib/ProfileData/InstrProf.cpp
+++ b/llvm/lib/ProfileData/InstrProf.cpp
@@ -952,7 +952,7 @@ void InstrProfRecord::merge(InstrProfRecord &Other,
uint64_t Weight,
Value = getInstrMaxCountValue();
Overflowed = true;
}
- Counts[I] = (SingleByteCoverage && Value != 0 ? 1 : Value);
+ Counts[I] = Value;
if (Overflowed)
Warn(instrprof_error::counter_overflow);
}
diff --git a/llvm/lib/ProfileData/InstrProfReader.cpp
b/llvm/lib/ProfileData/InstrProfReader.cpp
index a07d7f573275ba..b90617c74f6d13 100644
--- a/llvm/lib/ProfileData/InstrProfReader.cpp
+++ b/llvm/lib/ProfileData/InstrProfReader.cpp
@@ -743,7 +743,6 @@ Error RawInstrProfReader<IntPtrT>::readRawCounts(
Record.Counts.clear();
Record.Counts.reserve(NumCounters);
- Record.SingleByteCoverage = hasSingleByteCoverage();
for (uint32_t I = 0; I < NumCounters; I++) {
const char *Ptr =
CountersStart + CounterBaseOffset + I * getCounterTypeSize();
>From 5fc3408628a72560490c5271de171a636f5be50a Mon Sep 17 00:00:00 2001
From: NAKAMURA Takumi <geek4ci...@gmail.com>
Date: Wed, 20 Nov 2024 23:46:58 +0900
Subject: [PATCH 4/5] Fix a test to fix linecount=1
---
llvm/test/tools/llvm-cov/Inputs/showLineExecutionCounts.cpp | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/llvm/test/tools/llvm-cov/Inputs/showLineExecutionCounts.cpp
b/llvm/test/tools/llvm-cov/Inputs/showLineExecutionCounts.cpp
index b14409f173849d..b63247341a28e4 100644
--- a/llvm/test/tools/llvm-cov/Inputs/showLineExecutionCounts.cpp
+++ b/llvm/test/tools/llvm-cov/Inputs/showLineExecutionCounts.cpp
@@ -12,8 +12,8 @@ int main() { // TEXT: [[@LINE]]|
[[C161:161|1]]
x = 1; // TEXT: [[@LINE]]|
[[C161]]| x = 1
} // TEXT: [[@LINE]]|
[[C161]]| }
- for (int i = 0; i < 100; ++i) { // TEXT: [[@LINE]]|
[[C16K2:16\.2k|161]]| for (
- x = 1; // TEXT: [[@LINE]]|
[[C16K1:16\.1k|161]]| x = 1
+ for (int i = 0; i < 100; ++i) { // TEXT: [[@LINE]]|
[[C16K2:16\.2k|1]]| for (
+ x = 1; // TEXT: [[@LINE]]|
[[C16K1:16\.1k|1]]| x = 1
} // TEXT: [[@LINE]]|
[[C16K1]]| }
x = x < 10 ? x + 1 : x - 1; // TEXT: [[@LINE]]|
[[C161]]| x =
>From 24457a7236f5dc76e49c78817b5a0de6ce4f7f93 Mon Sep 17 00:00:00 2001
From: NAKAMURA Takumi <geek4ci...@gmail.com>
Date: Sun, 22 Dec 2024 00:42:02 +0900
Subject: [PATCH 5/5] Update tests
---
llvm/test/tools/llvm-cov/Inputs/branch-logical-mixed.cpp | 2 +-
llvm/test/tools/llvm-cov/branch-macros.test | 2 +-
llvm/test/tools/llvm-cov/showLineExecutionCounts.test | 4 ++--
3 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/llvm/test/tools/llvm-cov/Inputs/branch-logical-mixed.cpp
b/llvm/test/tools/llvm-cov/Inputs/branch-logical-mixed.cpp
index 246b0389aa6008..cce61784f9c48c 100644
--- a/llvm/test/tools/llvm-cov/Inputs/branch-logical-mixed.cpp
+++ b/llvm/test/tools/llvm-cov/Inputs/branch-logical-mixed.cpp
@@ -4,7 +4,7 @@
#include <stdio.h>
#include <stdlib.h>
-// CHECK: |{{ +}}[[C4:4|1]]|void func(
+// CHECK: | [[#min(C,4)]]|void func(
void func(int a, int b) {
bool b0 = a <= b;
bool b1 = a == b;
diff --git a/llvm/test/tools/llvm-cov/branch-macros.test
b/llvm/test/tools/llvm-cov/branch-macros.test
index 0a94e636082271..e4bd14ec14f16c 100644
--- a/llvm/test/tools/llvm-cov/branch-macros.test
+++ b/llvm/test/tools/llvm-cov/branch-macros.test
@@ -4,7 +4,7 @@
// RUN: yaml2obj %S/Inputs/branch-macros-single.yaml -o %t.o
// RUN: llvm-profdata merge %S/Inputs/branch-macros-single.proftext -o
%t.profdata
-// RUN: llvm-cov show --show-expansions --show-branches=count %t.o
-instr-profile %t.profdata -path-equivalence=.,%S/Inputs | FileCheck
%S/Inputs/branch-macros.cpp -D#C=999
+// RUN: llvm-cov show --show-expansions --show-branches=count %t.o
-instr-profile %t.profdata -path-equivalence=.,%S/Inputs | FileCheck
%S/Inputs/branch-macros.cpp -D#C=1
// REPORT: Name Regions Miss Cover Lines
Miss Cover Branches Miss Cover
// REPORT-NEXT: ---
diff --git a/llvm/test/tools/llvm-cov/showLineExecutionCounts.test
b/llvm/test/tools/llvm-cov/showLineExecutionCounts.test
index 63a49341e6c171..4f505f9648eb88 100644
--- a/llvm/test/tools/llvm-cov/showLineExecutionCounts.test
+++ b/llvm/test/tools/llvm-cov/showLineExecutionCounts.test
@@ -46,5 +46,5 @@
// RUN: yaml2obj %S/Inputs/showLineExecutionCounts-single.yaml -o %t.o
// RUN: llvm-profdata merge %S/Inputs/showLineExecutionCounts-single.proftext
-o %t.profdata
-// RUN: llvm-cov show %t.o -instr-profile %t.profdata
-path-equivalence=.,%S/Inputs | FileCheck -check-prefixes=TEXT,WHOLE-FILE
-D#C=161 -DC16K2=161 -DC16K1=161 %S/Inputs/showLineExecutionCounts.cpp
-// RUN: llvm-cov show %t.o -instr-profile %t.profdata
-path-equivalence=.,%S/Inputs -name=main | FileCheck
-check-prefixes=TEXT,FILTER -D#C=161 -DC16K2=161 -DC16K1=161
%S/Inputs/showLineExecutionCounts.cpp
+// RUN: llvm-cov show %t.o -instr-profile %t.profdata
-path-equivalence=.,%S/Inputs | FileCheck -check-prefixes=TEXT,WHOLE-FILE
-D#C=1 -DC16K2=1 -DC16K1=1 %S/Inputs/showLineExecutionCounts.cpp
+// RUN: llvm-cov show %t.o -instr-profile %t.profdata
-path-equivalence=.,%S/Inputs -name=main | FileCheck
-check-prefixes=TEXT,FILTER -D#C=1 -DC16K2=1 -DC16K1=1
%S/Inputs/showLineExecutionCounts.cpp
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