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Make LDC custom passes available to jit, add API for jit compiler options (#2758)

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Ivan Butygin 2019-09-08 09:16:05 +03:00 • committed by GitHub
parent b6d8210255
commit a40c6c7fd2
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22 changed files with 478 additions and 27 deletions
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38
gen/passes/SimplifyDRuntimeCalls.cpp
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@ -206,6 +206,33 @@ struct LLVM_LIBRARY_VISIBILITY AllocationOpt : public LibCallOptimization {
}
};
// This module will also be used in jit runtime
// copy these function here to avoid dependencies on rest of compiler
LLIntegerType *DtoSize_t(llvm::LLVMContext &context,
const llvm::Triple &triple) {
// the type of size_t does not change once set
static LLIntegerType *t = nullptr;
if (t == nullptr) {
if (triple.isArch64Bit()) {
t = LLType::getInt64Ty(context);
} else if (triple.isArch32Bit()) {
t = LLType::getInt32Ty(context);
} else if (triple.isArch16Bit()) {
t = LLType::getInt16Ty(context);
} else {
llvm_unreachable("Unsupported size_t width");
}
}
return t;
}
llvm::ConstantInt *DtoConstSize_t(llvm::LLVMContext &context,
const llvm::Triple &targetTriple,
uint64_t i) {
return LLConstantInt::get(DtoSize_t(context, targetTriple), i, false);
}
/// ArraySliceCopyOpt - Turn slice copies into llvm.memcpy when safe
struct LLVM_LIBRARY_VISIBILITY ArraySliceCopyOpt : public LibCallOptimization {
Value *CallOptimizer(Function *Callee, CallInst *CI,
@ -244,9 +271,12 @@ struct LLVM_LIBRARY_VISIBILITY ArraySliceCopyOpt : public LibCallOptimization {
// Equal length and the pointers definitely don't alias, so it's safe to
// replace the call with memcpy
auto Size = Sz != llvm::MemoryLocation::UnknownSize
? DtoConstSize_t(Sz)
: B.CreateMul(DstLength, ElemSz);
auto Size =
Sz != llvm::MemoryLocation::UnknownSize
? DtoConstSize_t(
Callee->getContext(),
llvm::Triple(Callee->getParent()->getTargetTriple()), Sz)
: B.CreateMul(DstLength, ElemSz);
return EmitMemCpy(CI->getOperand(0), CI->getOperand(2), Size, 1, B);
}
};
@ -391,7 +421,7 @@ bool SimplifyDRuntimeCalls::runOnce(Function &F, const DataLayout *DL,
}
LLVM_DEBUG(errs() << "SimplifyDRuntimeCalls simplified: " << *CI;
errs() << " into: " << *Result << "\n");
errs() << " into: " << *Result << "\n");
// Something changed!
Changed = true;