71 lines
2.4 KiB
C++
71 lines
2.4 KiB
C++
#include "LLVMWrapper.h"
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#include "llvm/ProfileData/Coverage/CoverageMapping.h"
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#include "llvm/ProfileData/Coverage/CoverageMappingWriter.h"
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#include "llvm/ProfileData/InstrProf.h"
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#include "llvm/ADT/ArrayRef.h"
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#include "llvm/Support/LEB128.h"
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#include <iostream>
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using namespace llvm;
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extern "C" void LLVMRustCoverageWriteFilenamesSectionToBuffer(
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const char* const Filenames[],
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size_t FilenamesLen,
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RustStringRef BufferOut) {
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// LLVM 11's CoverageFilenamesSectionWriter uses its new `Version4` format,
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// so we're manually writing the `Version3` format ourselves.
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RawRustStringOstream OS(BufferOut);
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encodeULEB128(FilenamesLen, OS);
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for (size_t i = 0; i < FilenamesLen; i++) {
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StringRef Filename(Filenames[i]);
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encodeULEB128(Filename.size(), OS);
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OS << Filename;
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}
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}
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extern "C" void LLVMRustCoverageWriteMappingToBuffer(
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const unsigned *VirtualFileMappingIDs,
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unsigned NumVirtualFileMappingIDs,
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const coverage::CounterExpression *Expressions,
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unsigned NumExpressions,
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coverage::CounterMappingRegion *MappingRegions,
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unsigned NumMappingRegions,
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RustStringRef BufferOut) {
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auto CoverageMappingWriter = coverage::CoverageMappingWriter(
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makeArrayRef(VirtualFileMappingIDs, NumVirtualFileMappingIDs),
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makeArrayRef(Expressions, NumExpressions),
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makeMutableArrayRef(MappingRegions, NumMappingRegions));
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RawRustStringOstream OS(BufferOut);
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CoverageMappingWriter.write(OS);
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}
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extern "C" LLVMValueRef LLVMRustCoverageCreatePGOFuncNameVar(LLVMValueRef F, const char *FuncName) {
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StringRef FuncNameRef(FuncName);
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return wrap(createPGOFuncNameVar(*cast<Function>(unwrap(F)), FuncNameRef));
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}
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extern "C" uint64_t LLVMRustCoverageComputeHash(const char *Name) {
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StringRef NameRef(Name);
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return IndexedInstrProf::ComputeHash(NameRef);
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}
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extern "C" void LLVMRustCoverageWriteSectionNameToString(LLVMModuleRef M,
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RustStringRef Str) {
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Triple TargetTriple(unwrap(M)->getTargetTriple());
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auto name = getInstrProfSectionName(IPSK_covmap,
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TargetTriple.getObjectFormat());
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RawRustStringOstream OS(Str);
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OS << name;
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}
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extern "C" void LLVMRustCoverageWriteMappingVarNameToString(RustStringRef Str) {
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auto name = getCoverageMappingVarName();
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RawRustStringOstream OS(Str);
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OS << name;
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}
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extern "C" uint32_t LLVMRustCoverageMappingVersion() {
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return coverage::CovMapVersion::Version3;
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}
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