diff options
Diffstat (limited to 'compiler/rustc_target/src/spec/mod.rs')
| -rw-r--r-- | compiler/rustc_target/src/spec/mod.rs | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/compiler/rustc_target/src/spec/mod.rs b/compiler/rustc_target/src/spec/mod.rs index 8b20152d3bf..794d6457cb7 100644 --- a/compiler/rustc_target/src/spec/mod.rs +++ b/compiler/rustc_target/src/spec/mod.rs @@ -1109,6 +1109,8 @@ impl ToJson for FloatAbi { /// The Rustc-specific variant of the ABI used for this target. #[derive(Clone, Copy, PartialEq, Hash, Debug)] pub enum RustcAbi { + /// On x86-32 only: make use of SSE and SSE2 for ABI purposes. + X86Sse2, /// On x86-32/64 only: do not use any FPU or SIMD registers for the ABI. X86Softfloat, } @@ -1118,6 +1120,7 @@ impl FromStr for RustcAbi { fn from_str(s: &str) -> Result<RustcAbi, ()> { Ok(match s { + "x86-sse2" => RustcAbi::X86Sse2, "x86-softfloat" => RustcAbi::X86Softfloat, _ => return Err(()), }) @@ -1127,6 +1130,7 @@ impl FromStr for RustcAbi { impl ToJson for RustcAbi { fn to_json(&self) -> Json { match *self { + RustcAbi::X86Sse2 => "x86-sse2", RustcAbi::X86Softfloat => "x86-softfloat", } .to_json() @@ -3264,6 +3268,11 @@ impl Target { // Check consistency of Rust ABI declaration. if let Some(rust_abi) = self.rustc_abi { match rust_abi { + RustcAbi::X86Sse2 => check_matches!( + &*self.arch, + "x86", + "`x86-sse2` ABI is only valid for x86-32 targets" + ), RustcAbi::X86Softfloat => check_matches!( &*self.arch, "x86" | "x86_64", |