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antiv
2015 Apr 28
2
[LLVMdev] Lowering intrinsic that return an int1
Hi all,
I'm playing with intrinsics and I was wondering how to lower an
intrinsic that should return, for example, an int1? More precisely, how
to return the value when working with MachineInst?
First, I have defined an instrinsic in "Intrinsics.td":
_def int_antivm : Intrinsic<[llvm_i1_ty], [], [], "llvm.antivm">;_
Then I want to lower it in the X86 backend, so I defined a pseudo
instruction in "X86InstrCompiler.td":
_let usesCustomInserter = 1, Defs = [EFLAGS] in {_
_def ANTIVM : PseudoI<(outs), (ins), [(int_antivm)]>;_
_}...