Mirrors/rust
1
0
Fork 0
mirror of https://github.com/rust-lang/rust.git synced 2026-04-27 18:57:42 +03:00
Code Issues Packages Projects Releases Wiki Activity

Rollup merge of #154094 - folkertdev:aarch64-arm-load-store, r=sayantn

Browse Source 
add neon load/store assembly test

I'm adding this test because it was requested for the beta backport of https://github.com/rust-lang/rust/issues/153336. We'd like to test this with Miri, but currently there is no load/store pair that roundtrips because one or the other still uses the platform-specific intrinsics.

r? sayantn

I believe test-various runs some arm and android tests?

@bors try job=test-various
This commit is contained in:
Jonathan Brouwer
2026-03-24 16:22:49 +01:00
committed by GitHub
parent 0312931d8c 35f9cb6eee
commit 898b62f590
2 changed files with 79 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/tools/compiletest/src/directives/directive_names.rs
+1
View File
@@ -213,6 +213,7 @@
"only-apple",
"only-arm",
"only-arm64ec",
"only-armv7-unknown-linux-gnueabihf",
"only-avr",
"only-beta",
"only-bpf",
tests/assembly-llvm/aarch64-arm-load-store.rs
+78
View File
@@ -0,0 +1,78 @@
//@ assembly-output: emit-asm
//
//@ revisions: AARCH64
//@[AARCH64] compile-flags: -Copt-level=3
//@[AARCH64] only-aarch64-unknown-linux-gnu
//
//@ revisions: ARMV7
//@[ARMV7] compile-flags: -Copt-level=3
//@[ARMV7] only-armv7-unknown-linux-gnueabihf
//@[ARMV7] ignore-thumb
//@[ARMV7] ignore-android
#![crate_type = "lib"]
#![cfg_attr(target_arch = "arm", feature(arm_target_feature, stdarch_arm_neon_intrinsics))]
#[cfg(target_arch = "aarch64")]
use std::arch::aarch64::*;
#[cfg(target_arch = "arm")]
use std::arch::arm::*;
// Loads of 3 are error-prone because a `repr(simd)` type's size is always rounded up to the next
// power of 2. Hence, using `read_unaligned` and `write_unaligned` on such types is invalid, it
// would go out of bounds.
#[unsafe(no_mangle)]
#[cfg_attr(target_arch = "arm", target_feature(enable = "neon,v7"))]
fn test_vld3q_f32(ptr: *const f32) -> float32x4x3_t {
// AARCH64-LABEL: test_vld3q_f32
// AARCH64: ld3 { v0.4s, v1.4s, v2.4s }, [x0]
// AARCH64: stp q0, q1, [x8]
// AARCH64: str q2, [x8, #32]
// AARCH64: ret
//
// ARMV7-LABEL: test_vld3q_f32
// ARMV7: vld3.32 {d16, d18, d20}, [r1]!
// ARMV7: vld3.32 {d17, d19, d21}, [r1]
// ARMV7: vst1.32 {d16, d17}, [r0]!
// ARMV7: vst1.32 {d18, d19}, [r0]!
// ARMV7: vst1.64 {d20, d21}, [r0]
// ARMV7: bx lr
unsafe { vld3q_f32(ptr) }
}
#[unsafe(no_mangle)]
#[cfg_attr(target_arch = "arm", target_feature(enable = "neon,v7"))]
fn test_vld3q_s32(ptr: *const i32) -> int32x4x3_t {
// AARCH64-LABEL: test_vld3q_s32
// AARCH64: ld3 { v0.4s, v1.4s, v2.4s }, [x0]
// AARCH64: stp q0, q1, [x8]
// AARCH64: str q2, [x8, #32]
// AARCH64: ret
//
// ARMV7-LABEL: test_vld3q_s32
// ARMV7: vld3.32 {d16, d18, d20}, [r1]!
// ARMV7: vld3.32 {d17, d19, d21}, [r1]
// ARMV7: vst1.32 {d16, d17}, [r0]!
// ARMV7: vst1.32 {d18, d19}, [r0]!
// ARMV7: vst1.64 {d20, d21}, [r0]
// ARMV7: bx lr
unsafe { vld3q_s32(ptr) }
}
#[unsafe(no_mangle)]
#[cfg_attr(target_arch = "arm", target_feature(enable = "neon,v7"))]
fn test_vld3q_u32(ptr: *const u32) -> uint32x4x3_t {
// AARCH64-LABEL: test_vld3q_u32
// AARCH64: ld3 { v0.4s, v1.4s, v2.4s }, [x0]
// AARCH64: stp q0, q1, [x8]
// AARCH64: str q2, [x8, #32]
// AARCH64: ret
//
// ARMV7-LABEL: test_vld3q_u32
// ARMV7: vld3.32 {d16, d18, d20}, [r1]!
// ARMV7: vld3.32 {d17, d19, d21}, [r1]
// ARMV7: vst1.32 {d16, d17}, [r0]!
// ARMV7: vst1.32 {d18, d19}, [r0]!
// ARMV7: vst1.64 {d20, d21}, [r0]
// ARMV7: bx lr
unsafe { vld3q_u32(ptr) }
}