| //===-- aeabi_dcmp.S - EABI dcmp* implementation ---------------------------===// |
| // |
| // 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" |
| |
| // int __aeabi_dcmp{eq,lt,le,ge,gt}(double a, double b) { |
| // int result = __{eq,lt,le,ge,gt}df2(a, b); |
| // if (result {==,<,<=,>=,>} 0) { |
| // return 1; |
| // } else { |
| // return 0; |
| // } |
| // } |
| |
| #if defined(COMPILER_RT_ARMHF_TARGET) |
| # define CONVERT_DCMP_ARGS_TO_DF2_ARGS \ |
| vmov d0, r0, r1 SEPARATOR \ |
| vmov d1, r2, r3 |
| #else |
| # define CONVERT_DCMP_ARGS_TO_DF2_ARGS |
| #endif |
| |
| #define DEFINE_AEABI_DCMP(cond) \ |
| .syntax unified SEPARATOR \ |
| .p2align 2 SEPARATOR \ |
| DEFINE_COMPILERRT_FUNCTION(__aeabi_dcmp ## cond) \ |
| push { r4, lr } SEPARATOR \ |
| CONVERT_DCMP_ARGS_TO_DF2_ARGS SEPARATOR \ |
| bl SYMBOL_NAME(__ ## cond ## df2) SEPARATOR \ |
| cmp r0, #0 SEPARATOR \ |
| b ## cond 1f SEPARATOR \ |
| movs r0, #0 SEPARATOR \ |
| pop { r4, pc } SEPARATOR \ |
| 1: SEPARATOR \ |
| movs r0, #1 SEPARATOR \ |
| pop { r4, pc } SEPARATOR \ |
| END_COMPILERRT_FUNCTION(__aeabi_dcmp ## cond) |
| |
| DEFINE_AEABI_DCMP(eq) |
| DEFINE_AEABI_DCMP(lt) |
| DEFINE_AEABI_DCMP(le) |
| DEFINE_AEABI_DCMP(ge) |
| DEFINE_AEABI_DCMP(gt) |
| |
| NO_EXEC_STACK_DIRECTIVE |
| |
