| //===-- ltsf2vfp.S - Implement ltsf2vfp -----------------------------------===// |
| // |
| // 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 int __ltsf2vfp(float a, float b); |
| // |
| // Returns one iff a < b and neither is NaN. |
| // Uses Darwin calling convention where single precision arguments are passsed |
| // like 32-bit ints |
| // |
| .syntax unified |
| .p2align 2 |
| DEFINE_COMPILERRT_FUNCTION(__ltsf2vfp) |
| #if defined(COMPILER_RT_ARMHF_TARGET) |
| vcmp.f32 s0, s1 |
| #else |
| vmov s14, r0 // move from GPR 0 to float register |
| vmov s15, r1 // move from GPR 1 to float register |
| vcmp.f32 s14, s15 |
| #endif |
| vmrs apsr_nzcv, fpscr |
| ITE(mi) |
| movmi r0, #1 // set result register to 1 if equal |
| movpl r0, #0 |
| bx lr |
| END_COMPILERRT_FUNCTION(__ltsf2vfp) |
| |
| NO_EXEC_STACK_DIRECTIVE |
| |