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Implement simd_insert

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This commit is contained in:
bjorn3 2020-07-19 14:54:18 +02:00
parent 0b211be054
commit edc0a3470b
2 changed files with 21 additions and 8 deletions
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9
example/std_example.rs
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@ -146,6 +146,7 @@ unsafe fn test_simd() {
// FIXME(#666) implement `#[rustc_arg_required_const(..)]` support
//test_mm_extract_epi8();
//test_mm_insert_epi16();
let mask1 = _mm_movemask_epi8(dbg!(_mm_setr_epi8(255u8 as i8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0)));
assert_eq!(mask1, 1);
@ -279,6 +280,14 @@ unsafe fn test_mm_extract_epi8() {
assert_eq!(r2, 3);
}
#[target_feature(enable = "sse2")]
unsafe fn test_mm_insert_epi16() {
let a = _mm_setr_epi16(0, 1, 2, 3, 4, 5, 6, 7);
let r = _mm_insert_epi16(a, 9, 0);
let e = _mm_setr_epi16(9, 1, 2, 3, 4, 5, 6, 7);
assert_eq_m128i(r, e);
}
fn test_checked_mul() {
let u: Option<u8> = u8::from_str_radix("1000", 10).ok();
assert_eq!(u, None);

20
src/intrinsics/simd.rs
View file

@ -33,6 +33,7 @@ pub(super) fn codegen_simd_intrinsic_call<'tcx>(
});
};
// FIXME support float comparisons
simd_eq, (c x, c y) {
validate_simd_type!(fx, intrinsic, span, x.layout().ty);
simd_cmp!(fx, Equal(x, y) -> ret);
@ -113,7 +114,7 @@ pub(super) fn codegen_simd_intrinsic_call<'tcx>(
}
};
simd_insert, (c base, o idx, v _val) {
simd_insert, (c base, o idx, c val) {
// FIXME validate
let idx_const = if let Some(idx_const) = crate::constant::mir_operand_get_const_val(fx, idx) {
idx_const
@ -132,13 +133,9 @@ pub(super) fn codegen_simd_intrinsic_call<'tcx>(
fx.tcx.sess.span_fatal(fx.mir.span, &format!("[simd_insert] idx {} >= lane_count {}", idx, lane_count));
}
// FIXME implement this
fx.tcx.sess.span_warn(
fx.mir.span,
"`simd_insert` is not yet implemented. Calling this function will panic.",
);
let val = crate::trap::trap_unimplemented_ret_value(fx, ret.layout(), "`simd_insert` is not yet implemented");
ret.write_cvalue(fx, val);
ret.write_cvalue(fx, base);
let ret_lane = ret.place_field(fx, mir::Field::new(idx.try_into().unwrap()));
ret_lane.write_cvalue(fx, val);
};
simd_extract, (c v, o idx) {
@ -233,5 +230,12 @@ pub(super) fn codegen_simd_intrinsic_call<'tcx>(
validate_simd_type!(fx, intrinsic, span, x.layout().ty);
simd_flt_binop!(fx, fmax(x, y) -> ret);
};
// simd_fabs
// simd_saturating_add
// simd_bitmask
// simd_select
// simd_reduce_add_{,un}ordered
// simd_rem
}
}