mirror of
https://github.com/ldc-developers/ldc.git
synced 2025-05-05 01:20:51 +03:00
44b0f7b615
This uses the LLVM style, which makes sense for sharing code with other LLVM projects. The DMD code we use will soon all be in D anyway.
52 lines
1.8 KiB
C++
52 lines
1.8 KiB
C++
//===-- gen/coverage.h - Code Coverage Analysis -----------------*- C++ -*-===//
|
||
//
|
||
// LDC – the LLVM D compiler
|
||
//
|
||
// This file is distributed under the BSD-style LDC license. See the LICENSE
|
||
// file for details.
|
||
//
|
||
//===----------------------------------------------------------------------===//
|
||
|
||
#include "gen/coverage.h"
|
||
|
||
#include "mars.h"
|
||
#include "module.h"
|
||
#include "gen/irstate.h"
|
||
#include "gen/logger.h"
|
||
|
||
void emitCoverageLinecountInc(Loc &loc) {
|
||
// Only emit coverage increment for locations in the source of the current
|
||
// module
|
||
// (for example, 'inlined' methods from other source files should be skipped).
|
||
if (!global.params.cov || !loc.linnum || !loc.filename ||
|
||
strcmp(gIR->dmodule->srcfile->name->toChars(), loc.filename) != 0) {
|
||
return;
|
||
}
|
||
|
||
const unsigned line = loc.linnum - 1; // convert to 0-based line# index
|
||
assert(line < gIR->dmodule->numlines);
|
||
|
||
IF_LOG Logger::println("Coverage: increment _d_cover_data[%d]", line);
|
||
LOG_SCOPE;
|
||
|
||
// Get GEP into _d_cover_data array
|
||
LLConstant *idxs[] = {DtoConstUint(0), DtoConstUint(line)};
|
||
LLValue *ptr = llvm::ConstantExpr::getGetElementPtr(
|
||
#if LDC_LLVM_VER >= 307
|
||
LLArrayType::get(LLType::getInt32Ty(gIR->context()),
|
||
gIR->dmodule->numlines),
|
||
#endif
|
||
gIR->dmodule->d_cover_data, idxs, true);
|
||
|
||
// Do an atomic increment, so this works when multiple threads are executed.
|
||
gIR->ir->CreateAtomicRMW(llvm::AtomicRMWInst::Add, ptr, DtoConstUint(1),
|
||
llvm::Monotonic);
|
||
|
||
unsigned num_sizet_bits = gDataLayout->getTypeSizeInBits(DtoSize_t());
|
||
unsigned idx = line / num_sizet_bits;
|
||
unsigned bitidx = line % num_sizet_bits;
|
||
|
||
IF_LOG Logger::println("_d_cover_valid[%d] |= (1 << %d)", idx, bitidx);
|
||
|
||
gIR->dmodule->d_cover_valid_init[idx] |= (size_t(1) << bitidx);
|
||
}
|