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Coverage: add HasCodeBefore flag to a mapping region.

Browse Source 
This flag will be used by the coverage tool to help 
compute the execution counts for each line in a source file.

Differential Revision: http://reviews.llvm.org/D4746


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@214740 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Alex Lorenz
2014-08-04 18:00:51 +00:00
parent b88bbc0e9d
commit aafa4b5c86
3 changed files with 24 additions and 9 deletions
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16
lib/ProfileData/CoverageMappingReader.cpp
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@ -170,13 +170,17 @@ std::error_code RawCoverageMappingReader::readMappingRegionsSubArray(
}
// Read the source range.
uint64_t LineStartDelta, ColumnStart, NumLines, ColumnEnd;
uint64_t LineStartDelta, CodeBeforeColumnStart, NumLines, ColumnEnd;
if (auto Err =
readIntMax(LineStartDelta, std::numeric_limits<unsigned>::max()))
return Err;
if (auto Err =
readIntMax(ColumnStart, std::numeric_limits<unsigned>::max()))
if (auto Err = readULEB128(CodeBeforeColumnStart))
return Err;
bool HasCodeBefore = CodeBeforeColumnStart & 1;
uint64_t ColumnStart = CodeBeforeColumnStart >>
CounterMappingRegion::EncodingHasCodeBeforeBits;
if (ColumnStart > std::numeric_limits<unsigned>::max())
return error(instrprof_error::malformed);
if (auto Err = readIntMax(NumLines, std::numeric_limits<unsigned>::max()))
return Err;
if (auto Err = readIntMax(ColumnEnd, std::numeric_limits<unsigned>::max()))
@ -194,9 +198,9 @@ std::error_code RawCoverageMappingReader::readMappingRegionsSubArray(
ColumnStart = 1;
ColumnEnd = std::numeric_limits<unsigned>::max();
}
MappingRegions.push_back(
CounterMappingRegion(C, InferredFileID, LineStart, ColumnStart,
LineStart + NumLines, ColumnEnd, Kind));
MappingRegions.push_back(CounterMappingRegion(
C, InferredFileID, LineStart, ColumnStart, LineStart + NumLines,
ColumnEnd, HasCodeBefore, Kind));
MappingRegions.back().ExpandedFileID = ExpandedFileID;
}
return success();