bors c38b8a8c62 Auto merge of #94579 - tmiasko:target-features, r=nagisa ... Always include global target features in function attributes This ensures that information about target features configured with `-C target-feature=...` or detected with `-C target-cpu=native` is retained for subsequent consumers of LLVM bitcode. This is crucial for linker plugin LTO, since this information is not conveyed to the plugin otherwise. <details><summary>Additional test case demonstrating the issue</summary> ```rust extern crate core; #[inline] #[target_feature(enable = "aes")] unsafe fn f(a: u128, b: u128) -> u128 { use core::arch::x86_64::*; use core::mem::transmute; transmute(_mm_aesenc_si128(transmute(a), transmute(b))) } pub fn g(a: u128, b: u128) -> u128 { unsafe { f(a, b) } } fn main() { let mut args = std::env::args(); let _ = args.next().unwrap(); let a: u128 = args.next().unwrap().parse().unwrap(); let b: u128 = args.next().unwrap().parse().unwrap(); println!("{}", g(a, b)); } ``` ```console $ rustc --edition=2021 a.rs -Clinker-plugin-lto -Clink-arg=-fuse-ld=lld -Ctarget-feature=+aes -O ... = note: LLVM ERROR: Cannot select: intrinsic %llvm.x86.aesni.aesenc ``` </details> r? `@nagisa`		2022-03-06 18:07:11 +00:00
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src	Auto merge of #94579 - tmiasko:target-features, r=nagisa	2022-03-06 18:07:11 +00:00
Cargo.toml	Add SmallStr	2022-03-04 16:57:34 +01:00