| 1 | //===-- gedf2vfp.S - Implement gedf2vfp -----------------------------------===// |
|---|
| 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 int __gedf2vfp(double a, double b); |
|---|
| 13 | // |
|---|
| 14 | // Returns one iff a >= b and neither is NaN. |
|---|
| 15 | // Uses Darwin calling convention where double precision arguments are passsed |
|---|
| 16 | // like in GPR pairs. |
|---|
| 17 | // |
|---|
| 18 | .syntax unified |
|---|
| 19 | .p2align 2 |
|---|
| 20 | DEFINE_COMPILERRT_FUNCTION(__gedf2vfp) |
|---|
| 21 | #if defined(COMPILER_RT_ARMHF_TARGET) |
|---|
| 22 | vcmp.f64 d0, d1 |
|---|
| 23 | #else |
|---|
| 24 | vmov d6, r0, r1 // load r0/r1 pair in double register |
|---|
| 25 | vmov d7, r2, r3 // load r2/r3 pair in double register |
|---|
| 26 | vcmp.f64 d6, d7 |
|---|
| 27 | #endif |
|---|
| 28 | vmrs apsr_nzcv, fpscr |
|---|
| 29 | ITE(ge) |
|---|
| 30 | movge r0, #1 // set result register to 1 if greater than or equal |
|---|
| 31 | movlt r0, #0 |
|---|
| 32 | bx lr |
|---|
| 33 | END_COMPILERRT_FUNCTION(__gedf2vfp) |
|---|
| 34 | |
|---|
| 35 | NO_EXEC_STACK_DIRECTIVE |
|---|
| 36 | |
|---|
| 37 | |
|---|
