rust-lang/rust
1
0
Fork 0
Code Issues Pull Requests Actions 1 Packages Projects Releases Wiki Activity

Use intrinsics for {f16,f32,f64,f128}::{minimum,maximum} operations

Browse Source
This commit is contained in:
Urgau
2025-05-08 12:43:10 +02:00
parent 7e552b46af
commit e7247df590
12 changed files with 389 additions and 76 deletions
Download Patch File Download Diff File Expand all files Collapse all files

36
compiler/rustc_codegen_gcc/src/intrinsic/mod.rs
View File

@@ -74,8 +74,44 @@ fn get_simple_intrinsic<'gcc, 'tcx>(
sym::fabsf64 => "fabs",
sym::minnumf32 => "fminf",
sym::minnumf64 => "fmin",
sym::minimumf32 => "fminimumf",
sym::minimumf64 => "fminimum",
sym::minimumf128 => {
// GCC doesn't have the intrinsic we want so we use the compiler-builtins one
// https://docs.rs/compiler_builtins/latest/compiler_builtins/math/full_availability/fn.fminimumf128.html
let f128_type = cx.type_f128();
return Some(cx.context.new_function(
None,
FunctionType::Extern,
f128_type,
&[
cx.context.new_parameter(None, f128_type, "a"),
cx.context.new_parameter(None, f128_type, "b"),
],
"fminimumf128",
false,
));
}
sym::maxnumf32 => "fmaxf",
sym::maxnumf64 => "fmax",
sym::maximumf32 => "fmaximumf",
sym::maximumf64 => "fmaximum",
sym::maximumf128 => {
// GCC doesn't have the intrinsic we want so we use the compiler-builtins one
// https://docs.rs/compiler_builtins/latest/compiler_builtins/math/full_availability/fn.fmaximumf128.html
let f128_type = cx.type_f128();
return Some(cx.context.new_function(
None,
FunctionType::Extern,
f128_type,
&[
cx.context.new_parameter(None, f128_type, "a"),
cx.context.new_parameter(None, f128_type, "b"),
],
"fmaximumf128",
false,
));
}
sym::copysignf32 => "copysignf",
sym::copysignf64 => "copysign",
sym::copysignf128 => "copysignl",