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Add intrinsics for SIMD arithmetic.

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This commit is contained in:
Huon Wilson 2015-07-31 11:23:12 -07:00
parent ecb3df5a91
commit 8d8b489bc9
2 changed files with 35 additions and 0 deletions
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30
src/librustc_trans/trans/intrinsic.rs
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@ -1496,5 +1496,35 @@ fn generic_simd_intrinsic<'blk, 'tcx>(bcx: Block<'blk, 'tcx>,
}
require!(false, "SIMD cast intrinsic monomorphised with incompatible cast");
}
macro_rules! arith {
($($name: ident: $($($p: ident),* => $call: expr),*;)*) => {
$(
if name == stringify!($name) {
let in_ = arg_tys[0].simd_type(tcx);
match in_.sty {
$(
$(ty::$p(_))|* => {
return $call(bcx, llargs[0], llargs[1], call_debug_location)
}
)*
_ => {},
}
require!(false,
"{} intrinsic monomorphised with invalid type",
name)
})*
}
}
arith! {
simd_add: TyUint, TyInt => Add, TyFloat => FAdd;
simd_sub: TyUint, TyInt => Sub, TyFloat => FSub;
simd_mul: TyUint, TyInt => Mul, TyFloat => FMul;
simd_div: TyFloat => FDiv;
simd_shl: TyUint, TyInt => Shl;
simd_shr: TyUint => LShr, TyInt => AShr;
simd_and: TyUint, TyInt => And;
simd_or: TyUint, TyInt => Or;
simd_xor: TyUint, TyInt => Xor;
}
bcx.sess().span_bug(call_info.span, "unknown SIMD intrinsic");
}