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Add runtime feature detection for F16C

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This commit is contained in:
gnzlbg
2019-04-23 10:10:41 +02:00
committed by gnzlbg
parent 0da68477f9
commit d31cc0b09e
5 changed files with 14 additions and 3 deletions
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7
library/stdarch/crates/std_detect/src/detect/arch/x86.rs
View File

@@ -62,6 +62,7 @@
/// * `"avx512ifma"`
/// * `"avx512vbmi"`
/// * `"avx512vpopcntdq"`
/// * `"f16c"`
/// * `"fma"`
/// * `"bmi1"`
/// * `"bmi2"`
@@ -179,6 +180,10 @@ macro_rules! is_x86_feature_detected {
cfg!(target_feature = "avx512vpopcntdq") || $crate::detect::check_for(
$crate::detect::Feature::avx512_vpopcntdq)
};
("f16c") => {
cfg!(target_feature = "avx512f") || $crate::detect::check_for(
$crate::detect::Feature::f16c)
};
("fma") => {
cfg!(target_feature = "fma") || $crate::detect::check_for(
$crate::detect::Feature::fma)
@@ -309,6 +314,8 @@ pub enum Feature {
/// AVX-512 VPOPCNTDQ (Vector Population Count Doubleword and
/// Quadword)
avx512_vpopcntdq,
/// F16C (Conversions between IEEE-754 `binary16` and `binary32` formats)
f16c,
/// FMA (Fused Multiply Add)
fma,
/// BMI1 (Bit Manipulation Instructions 1)

3
library/stdarch/crates/std_detect/src/detect/os/x86.rs
View File

@@ -113,13 +113,14 @@ fn detect_features() -> cache::Initializer {
};
enable(proc_info_ecx, 0, Feature::sse3);
enable(proc_info_ecx, 1, Feature::pclmulqdq);
enable(proc_info_ecx, 9, Feature::ssse3);
enable(proc_info_ecx, 13, Feature::cmpxchg16b);
enable(proc_info_ecx, 19, Feature::sse4_1);
enable(proc_info_ecx, 20, Feature::sse4_2);
enable(proc_info_ecx, 23, Feature::popcnt);
enable(proc_info_ecx, 25, Feature::aes);
enable(proc_info_ecx, 1, Feature::pclmulqdq);
enable(proc_info_ecx, 29, Feature::f16c);
enable(proc_info_ecx, 30, Feature::rdrand);
enable(extended_features_ebx, 18, Feature::rdseed);
enable(extended_features_ebx, 19, Feature::adx);