tests/codegen-llvm/simd-intrinsic/simd-intrinsic-generic-gather.rs

//

//@ compile-flags: -C no-prepopulate-passes
//@ revisions: LLVM21 LLVM22
//@ [LLVM22] min-llvm-version: 22
//@ [LLVM21] max-llvm-major-version: 21
// ignore-tidy-linelength

#![crate_type = "lib"]
#![feature(repr_simd, core_intrinsics)]
#![allow(non_camel_case_types)]

#[path = "../../auxiliary/minisimd.rs"]
mod minisimd;
use minisimd::*;

use std::intrinsics::simd::simd_gather;

pub type Vec2<T> = Simd<T, 2>;
pub type Vec4<T> = Simd<T, 4>;

// CHECK-LABEL: @gather_f32x2
#[no_mangle]
pub unsafe fn gather_f32x2(
    pointers: Vec2<*const f32>,
    mask: Vec2<i32>,
    values: Vec2<f32>,
) -> Vec2<f32> {
    // CHECK: [[A:%[0-9]+]] = lshr <2 x i32> {{.*}}, {{<i32 31, i32 31>|splat \(i32 31\)}}
    // CHECK: [[B:%[0-9]+]] = trunc <2 x i32> [[A]] to <2 x i1>
    // LLVM21: call <2 x float> @llvm.masked.gather.v2f32.v2p0(<2 x ptr> {{.*}}, i32 {{.*}}, <2 x i1> [[B]], <2 x float> {{.*}})
    // LLVM22: call <2 x float> @llvm.masked.gather.v2f32.v2p0(<2 x ptr> align {{.*}} {{.*}}, <2 x i1> [[B]], <2 x float> {{.*}})
    simd_gather(values, pointers, mask)
}

// CHECK-LABEL: @gather_f32x2_unsigned
#[no_mangle]
pub unsafe fn gather_f32x2_unsigned(
    pointers: Vec2<*const f32>,
    mask: Vec2<u32>,
    values: Vec2<f32>,
) -> Vec2<f32> {
    // CHECK: [[A:%[0-9]+]] = lshr <2 x i32> {{.*}}, {{<i32 31, i32 31>|splat \(i32 31\)}}
    // CHECK: [[B:%[0-9]+]] = trunc <2 x i32> [[A]] to <2 x i1>
    // LLVM21: call <2 x float> @llvm.masked.gather.v2f32.v2p0(<2 x ptr> {{.*}}, i32 {{.*}}, <2 x i1> [[B]], <2 x float> {{.*}})
    // LLVM22: call <2 x float> @llvm.masked.gather.v2f32.v2p0(<2 x ptr> align {{.*}} {{.*}}, <2 x i1> [[B]], <2 x float> {{.*}})
    simd_gather(values, pointers, mask)
}

// CHECK-LABEL: @gather_pf32x2
#[no_mangle]
pub unsafe fn gather_pf32x2(
    pointers: Vec2<*const *const f32>,
    mask: Vec2<i32>,
    values: Vec2<*const f32>,
) -> Vec2<*const f32> {
    // CHECK: [[A:%[0-9]+]] = lshr <2 x i32> {{.*}}, {{<i32 31, i32 31>|splat \(i32 31\)}}
    // CHECK: [[B:%[0-9]+]] = trunc <2 x i32> [[A]] to <2 x i1>
    // LLVM21: call <2 x ptr> @llvm.masked.gather.v2p0.v2p0(<2 x ptr> {{.*}}, i32 {{.*}}, <2 x i1> [[B]], <2 x ptr> {{.*}})
    // LLVM22: call <2 x ptr> @llvm.masked.gather.v2p0.v2p0(<2 x ptr> align {{.*}} {{.*}}, <2 x i1> [[B]], <2 x ptr> {{.*}})
    simd_gather(values, pointers, mask)
}