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