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| author | Jakub Beránek <berykubik@gmail.com> | 2025-07-04 10:08:58 +0200 |
|---|---|---|
| committer | Jakub Beránek <berykubik@gmail.com> | 2025-07-22 20:17:46 +0200 |
| commit | ee6f2c5276c3e19b919abb61693e66b0ded9c8ba (patch) | |
| tree | 6974b5a100e5bc19cbfe9bd28066fec32072a316 /library/std_detect/src/detect/os/x86.rs | |
| parent | 1057a2213af6fd273da86f13edeae559bfdd587d (diff) | |
| download | rust-ee6f2c5276c3e19b919abb61693e66b0ded9c8ba.tar.gz rust-ee6f2c5276c3e19b919abb61693e66b0ded9c8ba.zip | |
Reformat `std_detect`
Diffstat (limited to 'library/std_detect/src/detect/os/x86.rs')
| -rw-r--r-- | library/std_detect/src/detect/os/x86.rs | 39 |
1 files changed, 10 insertions, 29 deletions
diff --git a/library/std_detect/src/detect/os/x86.rs b/library/std_detect/src/detect/os/x86.rs index 8565c2f85e2..20f848ab05c 100644 --- a/library/std_detect/src/detect/os/x86.rs +++ b/library/std_detect/src/detect/os/x86.rs @@ -4,7 +4,6 @@ use core::arch::x86::*; #[cfg(target_arch = "x86_64")] use core::arch::x86_64::*; - use core::mem; use crate::detect::{Feature, bit, cache}; @@ -42,12 +41,7 @@ pub(crate) fn detect_features() -> cache::Initializer { // 0x8000_0000]. - The vendor ID is stored in 12 u8 ascii chars, // returned in EBX, EDX, and ECX (in that order): let (max_basic_leaf, vendor_id) = unsafe { - let CpuidResult { - eax: max_basic_leaf, - ebx, - ecx, - edx, - } = __cpuid(0); + let CpuidResult { eax: max_basic_leaf, ebx, ecx, edx } = __cpuid(0); let vendor_id: [[u8; 4]; 3] = [ebx.to_ne_bytes(), edx.to_ne_bytes(), ecx.to_ne_bytes()]; let vendor_id: [u8; 12] = mem::transmute(vendor_id); (max_basic_leaf, vendor_id) @@ -60,11 +54,8 @@ pub(crate) fn detect_features() -> cache::Initializer { // EAX = 1, ECX = 0: Queries "Processor Info and Feature Bits"; // Contains information about most x86 features. - let CpuidResult { - ecx: proc_info_ecx, - edx: proc_info_edx, - .. - } = unsafe { __cpuid(0x0000_0001_u32) }; + let CpuidResult { ecx: proc_info_ecx, edx: proc_info_edx, .. } = + unsafe { __cpuid(0x0000_0001_u32) }; // EAX = 7: Queries "Extended Features"; // Contains information about bmi,bmi2, and avx2 support. @@ -76,11 +67,8 @@ pub(crate) fn detect_features() -> cache::Initializer { extended_features_edx_leaf_1, ) = if max_basic_leaf >= 7 { let CpuidResult { ebx, ecx, edx, .. } = unsafe { __cpuid(0x0000_0007_u32) }; - let CpuidResult { - eax: eax_1, - edx: edx_1, - .. - } = unsafe { __cpuid_count(0x0000_0007_u32, 0x0000_0001_u32) }; + let CpuidResult { eax: eax_1, edx: edx_1, .. } = + unsafe { __cpuid_count(0x0000_0007_u32, 0x0000_0001_u32) }; (ebx, ecx, edx, eax_1, edx_1) } else { (0, 0, 0, 0, 0) // CPUID does not support "Extended Features" @@ -89,10 +77,7 @@ pub(crate) fn detect_features() -> cache::Initializer { // EAX = 0x8000_0000, ECX = 0: Get Highest Extended Function Supported // - EAX returns the max leaf value for extended information, that is, // `cpuid` calls in range [0x8000_0000; u32::MAX]: - let CpuidResult { - eax: extended_max_basic_leaf, - .. - } = unsafe { __cpuid(0x8000_0000_u32) }; + let CpuidResult { eax: extended_max_basic_leaf, .. } = unsafe { __cpuid(0x8000_0000_u32) }; // EAX = 0x8000_0001, ECX=0: Queries "Extended Processor Info and Feature // Bits" @@ -208,10 +193,8 @@ pub(crate) fn detect_features() -> cache::Initializer { // Processor Extended State Enumeration Sub-leaf (EAX = 0DH, // ECX = 1): if max_basic_leaf >= 0xd { - let CpuidResult { - eax: proc_extended_state1_eax, - .. - } = unsafe { __cpuid_count(0xd_u32, 1) }; + let CpuidResult { eax: proc_extended_state1_eax, .. } = + unsafe { __cpuid_count(0xd_u32, 1) }; enable(proc_extended_state1_eax, 0, Feature::xsaveopt); enable(proc_extended_state1_eax, 1, Feature::xsavec); enable(proc_extended_state1_eax, 3, Feature::xsaves); @@ -269,10 +252,8 @@ pub(crate) fn detect_features() -> cache::Initializer { enable(extended_features_edx_leaf_1, 8, Feature::amx_complex); if max_basic_leaf >= 0x1e { - let CpuidResult { - eax: amx_feature_flags_eax, - .. - } = unsafe { __cpuid_count(0x1e_u32, 1) }; + let CpuidResult { eax: amx_feature_flags_eax, .. } = + unsafe { __cpuid_count(0x1e_u32, 1) }; enable(amx_feature_flags_eax, 4, Feature::amx_fp8); enable(amx_feature_flags_eax, 5, Feature::amx_transpose); |
