From a4b7ed7a42c716ab9f05e351f003d589124fd55d Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 17 Apr 2024 14:18:58 +0200 Subject: Adding upstream version 1.68.2+dfsg1. Signed-off-by: Daniel Baumann --- tests/ui/intrinsics/const-eval-select-x86_64.rs | 40 +++++++++++++++++++++++++ 1 file changed, 40 insertions(+) create mode 100644 tests/ui/intrinsics/const-eval-select-x86_64.rs (limited to 'tests/ui/intrinsics/const-eval-select-x86_64.rs') diff --git a/tests/ui/intrinsics/const-eval-select-x86_64.rs b/tests/ui/intrinsics/const-eval-select-x86_64.rs new file mode 100644 index 000000000..f3924acf0 --- /dev/null +++ b/tests/ui/intrinsics/const-eval-select-x86_64.rs @@ -0,0 +1,40 @@ +// run-pass +// only-x86_64 + +#![feature(const_eval_select)] +#![feature(core_intrinsics)] +use std::intrinsics::const_eval_select; +use std::arch::x86_64::*; +use std::mem::transmute; + +const fn eq_ct(x: [i32; 4], y: [i32; 4]) -> bool { + x[0] == y[0] && x[1] == y[1] && x[2] == y[2] && x[3] == y[3] +} + +fn eq_rt(x: [i32; 4], y: [i32; 4]) -> bool { + unsafe { + let x = _mm_loadu_si128(&x as *const _ as *const _); + let y = _mm_loadu_si128(&y as *const _ as *const _); + let r = _mm_cmpeq_epi32(x, y); + let r = _mm_movemask_ps(transmute(r) ); + r == 0b1111 + } +} + +const fn eq(x: [i32; 4], y: [i32; 4]) -> bool { + unsafe { + const_eval_select((x, y), eq_ct, eq_rt) + } +} + +fn main() { + const X: bool = eq([0, 1, 2, 3], [0, 1, 2, 3]); + assert_eq!(X, true); + let x = eq([0, 1, 2, 3], [0, 1, 2, 3]); + assert_eq!(x, true); + + const Y: bool = eq([0, 1, 2, 3], [0, 1, 3, 2]); + assert_eq!(Y, false); + let y = eq([0, 1, 2, 3], [0, 1, 3, 2]); + assert_eq!(y, false); +} -- cgit v1.2.3