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Rollup merge of #120820 - CKingX:cpu-base-minimum, r=petrochenkov,ChrisDenton

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Enable CMPXCHG16B, SSE3, SAHF/LAHF and 128-bit Atomics (in nightly) in Windows x64

As Rust plans to set Windows 10 as the minimum supported OS for target x86_64-pc-windows-msvc, I have added the cmpxchg16b and sse3 feature. Windows 10 requires CMPXCHG16B, LAHF/SAHF, and PrefetchW as stated in the requirements [here](https://download.microsoft.com/download/c/1/5/c150e1ca-4a55-4a7e-94c5-bfc8c2e785c5/Windows%2010%20Minimum%20Hardware%20Requirements.pdf). Furthermore, CPUs that meet these requirements also have SSE3 ([see](https://walbourn.github.io/directxmath-sse3-and-ssse3/))
This commit is contained in:
Guillaume Gomez 2024-02-29 17:08:36 +01:00 committed by GitHub
commit 36bd9ef5a8
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6 changed files with 11 additions and 6 deletions
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3
compiler/rustc_target/src/spec/targets/x86_64_pc_windows_gnu.rs
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@ -3,6 +3,7 @@ use crate::spec::{base, Cc, LinkerFlavor, Lld, Target};
pub fn target() -> Target {
let mut base = base::windows_gnu::opts();
base.cpu = "x86-64".into();
base.features = "+cx16,+sse3,+sahf".into();
base.plt_by_default = false;
// Use high-entropy 64 bit address space for ASLR
base.add_pre_link_args(
@ -10,7 +11,7 @@ pub fn target() -> Target {
&["-m", "i386pep", "--high-entropy-va"],
);
base.add_pre_link_args(LinkerFlavor::Gnu(Cc::Yes, Lld::No), &["-m64", "-Wl,--high-entropy-va"]);
base.max_atomic_width = Some(64);
base.max_atomic_width = Some(128);
base.linker = Some("x86_64-w64-mingw32-gcc".into());
Target {

3
compiler/rustc_target/src/spec/targets/x86_64_pc_windows_gnullvm.rs
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@ -3,9 +3,10 @@ use crate::spec::{base, Cc, LinkerFlavor, Lld, Target};
pub fn target() -> Target {
let mut base = base::windows_gnullvm::opts();
base.cpu = "x86-64".into();
base.features = "+cx16,+sse3,+sahf".into();
base.plt_by_default = false;
base.add_pre_link_args(LinkerFlavor::Gnu(Cc::Yes, Lld::No), &["-m64"]);
base.max_atomic_width = Some(64);
base.max_atomic_width = Some(128);
base.linker = Some("x86_64-w64-mingw32-clang".into());
Target {

3
compiler/rustc_target/src/spec/targets/x86_64_pc_windows_msvc.rs
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@ -3,8 +3,9 @@ use crate::spec::{base, SanitizerSet, Target};
pub fn target() -> Target {
let mut base = base::windows_msvc::opts();
base.cpu = "x86-64".into();
base.features = "+cx16,+sse3,+sahf".into();
base.plt_by_default = false;
base.max_atomic_width = Some(64);
base.max_atomic_width = Some(128);
base.supported_sanitizers = SanitizerSet::ADDRESS;
Target {

3
compiler/rustc_target/src/spec/targets/x86_64_uwp_windows_gnu.rs
View File

@ -3,6 +3,7 @@ use crate::spec::{base, Cc, LinkerFlavor, Lld, Target};
pub fn target() -> Target {
let mut base = base::windows_uwp_gnu::opts();
base.cpu = "x86-64".into();
base.features = "+cx16,+sse3,+sahf".into();
base.plt_by_default = false;
// Use high-entropy 64 bit address space for ASLR
base.add_pre_link_args(
@ -10,7 +11,7 @@ pub fn target() -> Target {
&["-m", "i386pep", "--high-entropy-va"],
);
base.add_pre_link_args(LinkerFlavor::Gnu(Cc::Yes, Lld::No), &["-m64", "-Wl,--high-entropy-va"]);
base.max_atomic_width = Some(64);
base.max_atomic_width = Some(128);
Target {
llvm_target: "x86_64-pc-windows-gnu".into(),

3
compiler/rustc_target/src/spec/targets/x86_64_uwp_windows_msvc.rs
View File

@ -3,8 +3,9 @@ use crate::spec::{base, Target};
pub fn target() -> Target {
let mut base = base::windows_uwp_msvc::opts();
base.cpu = "x86-64".into();
base.features = "+cx16,+sse3,+sahf".into();
base.plt_by_default = false;
base.max_atomic_width = Some(64);
base.max_atomic_width = Some(128);
Target {
llvm_target: "x86_64-pc-windows-msvc".into(),

2
tests/codegen/sse42-implies-crc32.rs
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@ -12,4 +12,4 @@ pub unsafe fn crc32sse(v: u8) -> u32 {
_mm_crc32_u8(out, v)
}
// CHECK: attributes #0 {{.*"target-features"="\+sse4.2,\+crc32"}}
// CHECK: attributes #0 {{.*"target-features"=".*\+sse4.2,\+crc32"}}