| //===-- subsf3vfp.S - Implement subsf3vfp ---------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "../assembly.h" |
| |
| // |
| // extern float __subsf3vfp(float a, float b); |
| // |
| // Returns the difference between two single precision floating point numbers |
| // using the Darwin calling convention where single arguments are passsed |
| // like 32-bit ints. |
| // |
| .syntax unified |
| .p2align 2 |
| DEFINE_COMPILERRT_FUNCTION(__subsf3vfp) |
| #if defined(COMPILER_RT_ARMHF_TARGET) |
| vsub.f32 s0, s0, s1 |
| #else |
| vmov s14, r0 // move first param from r0 into float register |
| vmov s15, r1 // move second param from r1 into float register |
| vsub.f32 s14, s14, s15 |
| vmov r0, s14 // move result back to r0 |
| #endif |
| bx lr |
| END_COMPILERRT_FUNCTION(__subsf3vfp) |
| |
| NO_EXEC_STACK_DIRECTIVE |
| |
