Displaying 1 result from an estimated 1 matches for "int_test_and_clear_bit".
2009 Jun 23
2
[LLVMdev] How to add a trivial LLVM intrinsic
...ded any code to llvm/lib/Target/X86 because when I did, I
received a tablegen error. I think I'm not understanding the difference
between an intrinsic that maps directly to a single machine instruction, and
a more complex intrinsic that invokes a C function.
In particular, I tried adding:
def int_test_and_clear_bit : X86Inst;
to the end of X86.td, but that resulted in a tablegen compilation error.
Code I've added to the end of LowerIntrinsicCall in
/lib/CodeGen/IntrinsicLowering.cpp:
-----------------
case Intrinsic::test_intrinsic:
break;
-----------------
Note that the intent is to make this...