Check for AVX512 at runtime to avoid invalid opcode trap (#8166)
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fn main() {
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// Until https://github.com/rust-lang/rust/issues/44839 is resolved
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// `#[target_feature(enable = "avx512f")]` is not available.
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// Use an env flag instead:
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if is_x86_feature_detected!("avx512f") {
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println!("cargo:rustc-env=TARGET_FEATURE_AVX512F=1");
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}
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}
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@ -646,6 +646,16 @@ fn report_target_features() {
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process::exit(1);
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}
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}
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// TARGET_FEATURE_AVX512F is defined by build.rs
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if option_env!("TARGET_FEATURE_AVX512F").is_some() {
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if is_x86_feature_detected!("avx512f") {
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info!("AVX512 detected");
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} else {
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error!("Your machine does not have AVX512 support, please rebuild from source on your machine");
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process::exit(1);
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}
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}
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}
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// Get the activated stake percentage (based on the provided bank) that is visible in gossip
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