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[breaking change] fixes unsoundness in avx non-temporal store APIs. Closes #575 (#576)

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gnzlbg
2018-11-02 14:55:48 +01:00
committed by Alex Crichton
parent 4a0ae6e8cb
commit c6f90494db
1 changed files with 6 additions and 6 deletions
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library/stdarch/coresimd/x86/avx.rs
+6 -6
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@@ -1941,8 +1941,8 @@ pub unsafe fn _mm256_lddqu_si256(mem_addr: *const __m256i) -> __m256i {
#[target_feature(enable = "avx")]
#[cfg_attr(test, assert_instr(vmovntps))] // FIXME vmovntdq
#[stable(feature = "simd_x86", since = "1.27.0")]
pub unsafe fn _mm256_stream_si256(mem_addr: *const __m256i, a: __m256i) {
intrinsics::nontemporal_store(mem::transmute(mem_addr), a);
pub unsafe fn _mm256_stream_si256(mem_addr: *mut __m256i, a: __m256i) {
intrinsics::nontemporal_store(mem_addr, a);
}
/// Moves double-precision values from a 256-bit vector of `[4 x double]`
@@ -1954,8 +1954,8 @@ pub unsafe fn _mm256_stream_si256(mem_addr: *const __m256i, a: __m256i) {
#[target_feature(enable = "avx")]
#[cfg_attr(test, assert_instr(vmovntps))] // FIXME vmovntpd
#[stable(feature = "simd_x86", since = "1.27.0")]
pub unsafe fn _mm256_stream_pd(mem_addr: *const f64, a: __m256d) {
intrinsics::nontemporal_store(mem::transmute(mem_addr), a);
pub unsafe fn _mm256_stream_pd(mem_addr: *mut f64, a: __m256d) {
intrinsics::nontemporal_store(mem_addr as *mut __m256d, a);
}
/// Moves single-precision floating point values from a 256-bit vector
@@ -1968,8 +1968,8 @@ pub unsafe fn _mm256_stream_pd(mem_addr: *const f64, a: __m256d) {
#[target_feature(enable = "avx")]
#[cfg_attr(test, assert_instr(vmovntps))]
#[stable(feature = "simd_x86", since = "1.27.0")]
pub unsafe fn _mm256_stream_ps(mem_addr: *const f32, a: __m256) {
intrinsics::nontemporal_store(mem::transmute(mem_addr), a);
pub unsafe fn _mm256_stream_ps(mem_addr: *mut f32, a: __m256) {
intrinsics::nontemporal_store(mem_addr as *mut __m256, a);
}
/// Compute the approximate reciprocal of packed single-precision (32-bit)