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Rollup merge of #48369 - newpavlov:rdrand, r=nagisa

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Rename rdrnd target feature to rdrand

Plus minor cleanup.

Related stdsimd [issue](https://github.com/rust-lang-nursery/stdsimd/issues/325).
This commit is contained in:
kennytm 2018-02-25 15:54:49 +08:00
commit c9b6dcaaf9
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1 changed files with 15 additions and 15 deletions
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30
src/librustc_trans/llvm_util.rs
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@ -75,26 +75,25 @@ unsafe fn configure_llvm(sess: &Session) {
llvm_args.as_ptr());
}
// WARNING: the features must be known to LLVM or the feature
// detection code will walk past the end of the feature array,
// leading to crashes.
// WARNING: the features after applying `to_llvm_feature` must be known
// to LLVM or the feature detection code will walk past the end of the feature
// array, leading to crashes.
const ARM_WHITELIST: &'static [&'static str] = &["neon", "v7", "vfp2", "vfp3", "vfp4"];
const AARCH64_WHITELIST: &'static [&'static str] = &["neon", "v7"];
const X86_WHITELIST: &'static [&'static str] = &["avx", "avx2", "bmi", "bmi2", "sse",
"sse2", "sse3", "sse4.1", "sse4.2",
"ssse3", "tbm", "lzcnt", "popcnt",
"sse4a", "rdrnd", "rdseed", "fma",
"xsave", "xsaveopt", "xsavec",
"xsaves", "aes", "pclmulqdq",
"avx512bw", "avx512cd",
"avx512dq", "avx512er",
"avx512f", "avx512ifma",
"avx512pf", "avx512vbmi",
"avx512vl", "avx512vpopcntdq",
"mmx", "fxsr"];
const X86_WHITELIST: &'static [&'static str] = &["aes", "avx", "avx2", "avx512bw",
"avx512cd", "avx512dq", "avx512er",
"avx512f", "avx512ifma", "avx512pf",
"avx512vbmi", "avx512vl", "avx512vpopcntdq",
"bmi", "bmi2", "fma", "fxsr",
"lzcnt", "mmx", "pclmulqdq",
"popcnt", "rdrand", "rdseed",
"sse", "sse2", "sse3", "sse4.1",
"sse4.2", "sse4a", "ssse3",
"tbm", "xsave", "xsavec",
"xsaveopt", "xsaves"];
const HEXAGON_WHITELIST: &'static [&'static str] = &["hvx", "hvx-double"];
@ -108,6 +107,7 @@ const MIPS_WHITELIST: &'static [&'static str] = &["msa"];
pub fn to_llvm_feature(s: &str) -> &str {
match s {
"pclmulqdq" => "pclmul",
"rdrand" => "rdrnd",
s => s,
}
}