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| author | Caleb Zulawski <caleb.zulawski@gmail.com> | 2021-03-11 01:02:47 -0500 |
|---|---|---|
| committer | Caleb Zulawski <caleb.zulawski@gmail.com> | 2021-04-09 16:31:03 -0400 |
| commit | 4b8cbd5385e8d6e851edb2d1e37ddbf843dda02a (patch) | |
| tree | 1f8a098201ed96208f5e0565a743be0f771eb8a7 | |
| parent | 64f564866bf09f98ae7a044fa8ca98a53bbbff1f (diff) | |
| download | rust-4b8cbd5385e8d6e851edb2d1e37ddbf843dda02a.tar.gz rust-4b8cbd5385e8d6e851edb2d1e37ddbf843dda02a.zip | |
Fix i586 detection
| -rw-r--r-- | crates/core_simd/src/reduction.rs | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/crates/core_simd/src/reduction.rs b/crates/core_simd/src/reduction.rs index 684879021b4..e59bf93baa3 100644 --- a/crates/core_simd/src/reduction.rs +++ b/crates/core_simd/src/reduction.rs @@ -55,11 +55,12 @@ macro_rules! impl_float_reductions { where Self: crate::LanesAtMost32 { + /// Produces the sum of the lanes of the vector. #[inline] pub fn sum(self) -> $scalar { // f32 SIMD sum is inaccurate on i586 - if cfg!(target_arch = "i586") && core::mem::size_of::<$scalar>() == 4 { + if cfg!(all(target_arch = "x86", not(target_feature = "sse2"))) && core::mem::size_of::<$scalar>() == 4 { self.as_slice().iter().sum() } else { unsafe { crate::intrinsics::simd_reduce_add_ordered(self, 0.) } @@ -70,7 +71,7 @@ macro_rules! impl_float_reductions { #[inline] pub fn product(self) -> $scalar { // f32 SIMD product is inaccurate on i586 - if cfg!(target_arch = "i586") && core::mem::size_of::<$scalar>() == 4 { + if cfg!(all(target_arch = "x86", not(target_feature = "sse2"))) && core::mem::size_of::<$scalar>() == 4 { self.as_slice().iter().product() } else { unsafe { crate::intrinsics::simd_reduce_mul_ordered(self, 1.) } |