[LLVMdev] processor Intrisic handling question (original) (raw)

Stavropoulos Nikos n.stavropoulos at think-silicon.com
Fri Oct 24 03:11:10 PDT 2014

hi all, i have 2 intrinsics that i want to insert them into my C code.

def int_nema_lkp3: GCCBuiltin<"__builtin_nema_lkp3">,Intrinsic<[llvm_v4f32_ty], [llvm_v4f32_ty, llvm_v4f32_ty, llvm_v4f32_ty]>;

def int_nema_updt: GCCBuiltin<"__builtin_nema_updt">,Intrinsic<[], [llvm_v4f32_ty]>;

and the C sample code is

main {

float4 a,b,c,d;

d=__builtin_nema_lkp3(a,b,c); /// if have hit jump after __builtin_nema_updt

d= a*b+c;

__builtin_nema_updt(d);

return 0; }

so i want the first intrinsic instruction to conditionally branch after the second intrinsic instruction.

i have tried to do the same with with if - else code but this needs an extra variable that i don't want to exist.

Should i do something like iterating the nodes to find where to jump??

Thanks in advance

-- View this message in context: http://llvm.1065342.n5.nabble.com/LLVMdev-processor-Intrisic-handling-question-tp73755.html Sent from the LLVM - Dev mailing list archive at Nabble.com.