| 1 | //===-- divdf3vfp.S - Implement divdf3vfp ---------------------------------===// |
|---|---|
| 2 | // |
| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| 4 | // See https://llvm.org/LICENSE.txt for license information. |
| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| 6 | // |
| 7 | //===----------------------------------------------------------------------===// |
| 8 | |
| 9 | #include "../assembly.h" |
| 10 | |
| 11 | // |
| 12 | // extern double __divdf3vfp(double a, double b); |
| 13 | // |
| 14 | // Divides two double precision floating point numbers using the Darwin |
| 15 | // calling convention where double arguments are passsed in GPR pairs |
| 16 | // |
| 17 | .syntax unified |
| 18 | .p2align 2 |
| 19 | DEFINE_COMPILERRT_FUNCTION(__divdf3vfp) |
| 20 | #if defined(COMPILER_RT_ARMHF_TARGET) |
| 21 | vdiv.f64 d0, d0, d1 |
| 22 | #else |
| 23 | VMOV_TO_DOUBLE(d6, r0, r1) // move first param from r0/r1 pair into d6 |
| 24 | VMOV_TO_DOUBLE(d7, r2, r3) // move second param from r2/r3 pair into d7 |
| 25 | vdiv.f64 d5, d6, d7 |
| 26 | VMOV_FROM_DOUBLE(r0, r1, d5) // move result back to r0/r1 pair |
| 27 | #endif |
| 28 | bx lr |
| 29 | END_COMPILERRT_FUNCTION(__divdf3vfp) |
| 30 | |
| 31 | NO_EXEC_STACK_DIRECTIVE |
| 32 | |
| 33 |