| //===-- muldf3vfp.S - Implement muldf3vfp ---------------------------------===// |
| // |
| // 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 double __muldf3vfp(double a, double b); |
| // |
| // Multiplies two double precision floating point numbers using the Darwin |
| // calling convention where double arguments are passsed in GPR pairs |
| // |
| .syntax unified |
| .p2align 2 |
| DEFINE_COMPILERRT_FUNCTION(__muldf3vfp) |
| #if defined(COMPILER_RT_ARMHF_TARGET) |
| vmul.f64 d0, d0, d1 |
| #else |
| vmov d6, r0, r1 // move first param from r0/r1 pair into d6 |
| vmov d7, r2, r3 // move second param from r2/r3 pair into d7 |
| vmul.f64 d6, d6, d7 |
| vmov r0, r1, d6 // move result back to r0/r1 pair |
| #endif |
| bx lr |
| END_COMPILERRT_FUNCTION(__muldf3vfp) |
| |
| NO_EXEC_STACK_DIRECTIVE |
| |
