| //@ compile-flags: -Copt-level=3 |
| //@ revisions: GENERIC LOONGARCH32 LOONGARCH64 RISCV32 RISCV64 |
| //@ [GENERIC] ignore-loongarch32 |
| //@ [GENERIC] ignore-loongarch64 |
| //@ [GENERIC] ignore-riscv32 |
| //@ [GENERIC] ignore-riscv64 |
| //@ [LOONGARCH32] only-loongarch32 |
| //@ [LOONGARCH64] only-loongarch64 |
| //@ [RISCV32] only-riscv32 |
| //@ [RISCV64] only-riscv64 |
| |
| #![crate_type = "lib"] |
| #![feature(f16b)] |
| #![allow(improper_ctypes_definitions)] |
| |
| extern crate core; |
| |
| use core::num::f16b; |
| |
| // GENERIC-LABEL: define{{.*}} bfloat @identity_f16b(bfloat |
| // LOONGARCH32-LABEL: define{{.*}} half @identity_f16b(half |
| // LOONGARCH64-LABEL: define{{.*}} half @identity_f16b(half |
| // RISCV32-LABEL: define{{.*}} half @identity_f16b(half |
| // RISCV64-LABEL: define{{.*}} half @identity_f16b(half |
| #[no_mangle] |
| pub extern "C" fn identity_f16b(value: f16b) -> f16b { |
| // GENERIC: ret bfloat |
| // LOONGARCH32: ret half |
| // LOONGARCH64: ret half |
| // RISCV32: ret half |
| // RISCV64: ret half |
| value |
| } |
| |
| // GENERIC-LABEL: define{{.*}} i16 @f16b_to_bits(bfloat |
| // LOONGARCH32-LABEL: define{{.*}} i16 @f16b_to_bits(half |
| // LOONGARCH64-LABEL: define{{.*}} i16 @f16b_to_bits(half |
| // RISCV32-LABEL: define{{.*}} i16 @f16b_to_bits(half |
| // RISCV64-LABEL: define{{.*}} i16 @f16b_to_bits(half |
| #[no_mangle] |
| pub extern "C" fn f16b_to_bits(value: f16b) -> u16 { |
| // GENERIC: bitcast bfloat %value to i16 |
| // LOONGARCH32: bitcast half %0 to i16 |
| // LOONGARCH64: bitcast half %0 to i16 |
| // RISCV32: bitcast half %0 to i16 |
| // RISCV64: bitcast half %0 to i16 |
| value.to_bits() |
| } |
| |
| // GENERIC-LABEL: define{{.*}} bfloat @f16b_from_bits(i16 |
| // LOONGARCH32-LABEL: define{{.*}} half @f16b_from_bits(i16 |
| // LOONGARCH64-LABEL: define{{.*}} half @f16b_from_bits(i16 |
| // RISCV32-LABEL: define{{.*}} half @f16b_from_bits(i16 |
| // RISCV64-LABEL: define{{.*}} half @f16b_from_bits(i16 |
| #[no_mangle] |
| pub extern "C" fn f16b_from_bits(bits: u16) -> f16b { |
| // GENERIC: bitcast i16 %bits to bfloat |
| // LOONGARCH32: bitcast i16 %bits to half |
| // LOONGARCH64: bitcast i16 %bits to half |
| // RISCV32: bitcast i16 %bits to half |
| // RISCV64: bitcast i16 %bits to half |
| f16b::from_bits(bits) |
| } |
| |
| // GENERIC-LABEL: define{{.*}} float @widen_f16b(bfloat |
| // LOONGARCH32-LABEL: define{{.*}} float @widen_f16b(half |
| // LOONGARCH64-LABEL: define{{.*}} float @widen_f16b(half |
| // RISCV32-LABEL: define{{.*}} float @widen_f16b(half |
| // RISCV64-LABEL: define{{.*}} float @widen_f16b(half |
| #[no_mangle] |
| pub extern "C" fn widen_f16b(value: f16b) -> f32 { |
| // GENERIC: bitcast bfloat %value to i16 |
| // LOONGARCH32: bitcast half %0 to i16 |
| // LOONGARCH64: bitcast half %0 to i16 |
| // RISCV32: bitcast half %0 to i16 |
| // RISCV64: bitcast half %0 to i16 |
| // CHECK: zext i16 |
| // CHECK: shl nuw i32 {{.*}}, 16 |
| // CHECK: bitcast i32 {{.*}} to float |
| f32::from(value) |
| } |
