Displaying 2 results from an estimated 2 matches for "prefptrvalu".
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prefptrvalue
2013 Apr 10
0
[LLVMdev] How to call the llvm.prefetch intrinsic ?
Alexandra,
I'm not sure what you mean by "replace", but I have code that does this to insert prefetches:
Type *I8Ptr = Type::getInt8PtrTy((*I)->getContext(), PtrAddrSpace);
Value *PrefPtrValue = ...
IRBuilder<> Builder(MemI);
Module *M = (*I)->getParent()->getParent();
Type *I32 = Type::getInt32Ty((*I)->getContext());
Value *PrefetchFunc = Intrinsic::getDeclaration(M, Intrinsic::prefetch);
Builder.CreateCall4(PrefetchFunc, PrefPtrValue,...
2013 Apr 10
2
[LLVMdev] How to call the llvm.prefetch intrinsic ?
Hello,
Can anyone please guide me how can I replace a load instruction with a prefetch. I was looking at the intrinsic creation methods of the IRBuilder, but I can only find functions corresponding to memset, memcpy and memmove intrinsics, not for prefetching.
Also, I target x86-64 architectures. Is it sufficient to insert a call to the intrinsic in the LLVM IR to have the corresponding prefetch