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Specify the integer type of the `powi` LLVM intrinsic 

Since LLVM <https://reviews.llvm.org/D99439> (4c7f820b2b20, "Update
@llvm.powi to handle different int sizes for the exponent"), the size of
the integer can be specified for the `powi` intrinsic. Make use of this
so it is more obvious that integer size is consistent across all float
types.

This feature is available since LLVM 13 (October 2021). Based on
bootstrap we currently support >= 17.0, so there should be no support
problems.
This commit is contained in:
Trevor Gross 2024-07-12 03:54:54 -04:00
parent a886938671
commit e6d570241f
2 changed files with 8 additions and 8 deletions
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8
compiler/rustc_codegen_llvm/src/context.rs
View File

@ -775,10 +775,10 @@ impl<'ll> CodegenCx<'ll, '_> {
ifn!("llvm.debugtrap", fn() -> void);
ifn!("llvm.frameaddress", fn(t_i32) -> ptr);
ifn!("llvm.powi.f16", fn(t_f16, t_i32) -> t_f16);
ifn!("llvm.powi.f32", fn(t_f32, t_i32) -> t_f32);
ifn!("llvm.powi.f64", fn(t_f64, t_i32) -> t_f64);
ifn!("llvm.powi.f128", fn(t_f128, t_i32) -> t_f128);
ifn!("llvm.powi.f16.i32", fn(t_f16, t_i32) -> t_f16);
ifn!("llvm.powi.f32.i32", fn(t_f32, t_i32) -> t_f32);
ifn!("llvm.powi.f64.i32", fn(t_f64, t_i32) -> t_f64);
ifn!("llvm.powi.f128.i32", fn(t_f128, t_i32) -> t_f128);
ifn!("llvm.pow.f16", fn(t_f16, t_f16) -> t_f16);
ifn!("llvm.pow.f32", fn(t_f32, t_f32) -> t_f32);

8
compiler/rustc_codegen_llvm/src/intrinsic.rs
View File

@ -35,10 +35,10 @@ fn get_simple_intrinsic<'ll>(
sym::sqrtf64 => "llvm.sqrt.f64",
sym::sqrtf128 => "llvm.sqrt.f128",
sym::powif16 => "llvm.powi.f16",
sym::powif32 => "llvm.powi.f32",
sym::powif64 => "llvm.powi.f64",
sym::powif128 => "llvm.powi.f128",
sym::powif16 => "llvm.powi.f16.i32",
sym::powif32 => "llvm.powi.f32.i32",
sym::powif64 => "llvm.powi.f64.i32",
sym::powif128 => "llvm.powi.f128.i32",
sym::sinf16 => "llvm.sin.f16",
sym::sinf32 => "llvm.sin.f32",