bjoernager/rust
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Add more SIMD math.h intrinsics

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LLVM supports many functions from math.h in its IR. Many of these have
single-instruction variants on various platforms. So, let's add them so
std::arch can use them.

Yes, exact comparison is intentional: rounding must always return a
valid integer-equal value, except for inf/NAN.
This commit is contained in:
Jubilee Young 2021-04-14 15:07:36 -07:00
parent d0695c9081
commit 003b8eadd7
5 changed files with 34 additions and 13 deletions
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8
compiler/rustc_codegen_llvm/src/intrinsic.rs
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@ -1057,8 +1057,10 @@ fn generic_simd_intrinsic(
sym::simd_fsin => ("sin", bx.type_func(&[vec_ty], vec_ty)),
sym::simd_fcos => ("cos", bx.type_func(&[vec_ty], vec_ty)),
sym::simd_fabs => ("fabs", bx.type_func(&[vec_ty], vec_ty)),
sym::simd_floor => ("floor", bx.type_func(&[vec_ty], vec_ty)),
sym::simd_ceil => ("ceil", bx.type_func(&[vec_ty], vec_ty)),
sym::simd_floor => ("floor", bx.type_func(&[vec_ty], vec_ty)),
sym::simd_round => ("round", bx.type_func(&[vec_ty], vec_ty)),
sym::simd_trunc => ("trunc", bx.type_func(&[vec_ty], vec_ty)),
sym::simd_fexp => ("exp", bx.type_func(&[vec_ty], vec_ty)),
sym::simd_fexp2 => ("exp2", bx.type_func(&[vec_ty], vec_ty)),
sym::simd_flog10 => ("log10", bx.type_func(&[vec_ty], vec_ty)),
@ -1083,8 +1085,10 @@ fn generic_simd_intrinsic(
| sym::simd_fsin
| sym::simd_fcos
| sym::simd_fabs
| sym::simd_floor
| sym::simd_ceil
| sym::simd_floor
| sym::simd_round
| sym::simd_trunc
| sym::simd_fexp
| sym::simd_fexp2
| sym::simd_flog10