projects / rustc.git / blame
| Commit | Line | Data |
|---|---|---|
| 1a4d82fc JJ |
1 | //===-- aeabi_dcmp.S - EABI dcmp* implementation ---------------------------===// |
| 2 | // | |
| 3 | // The LLVM Compiler Infrastructure | |
| 4 | // | |
| 5 | // This file is dual licensed under the MIT and the University of Illinois Open | |
| 6 | // Source Licenses. See LICENSE.TXT for details. | |
| 7 | // | |
| 8 | //===----------------------------------------------------------------------===// | |
| 9 | ||
| 10 | #include "../assembly.h" | |
| 11 | ||
| 12 | // int __aeabi_dcmp{eq,lt,le,ge,gt}(double a, double b) { | |
| 13 | // int result = __{eq,lt,le,ge,gt}df2(a, b); | |
| 14 | // if (result {==,<,<=,>=,>} 0) { | |
| 15 | // return 1; | |
| 16 | // } else { | |
| 17 | // return 0; | |
| 18 | // } | |
| 19 | // } | |
| 20 | ||
| 21 | #define DEFINE_AEABI_DCMP(cond) \ | |
| 22 | .syntax unified SEPARATOR \ | |
| 92a42be0 | 23 | .p2align 2 SEPARATOR \ |
| 1a4d82fc JJ |
24 | DEFINE_COMPILERRT_FUNCTION(__aeabi_dcmp ## cond) \ |
| 25 | push { r4, lr } SEPARATOR \ | |
| 26 | bl SYMBOL_NAME(__ ## cond ## df2) SEPARATOR \ | |
| 27 | cmp r0, #0 SEPARATOR \ | |
| 28 | b ## cond 1f SEPARATOR \ | |
| 29 | mov r0, #0 SEPARATOR \ | |
| 30 | pop { r4, pc } SEPARATOR \ | |
| 31 | 1: SEPARATOR \ | |
| 32 | mov r0, #1 SEPARATOR \ | |
| 33 | pop { r4, pc } SEPARATOR \ | |
| 34 | END_COMPILERRT_FUNCTION(__aeabi_dcmp ## cond) | |
| 35 | ||
| 36 | DEFINE_AEABI_DCMP(eq) | |
| 37 | DEFINE_AEABI_DCMP(lt) | |
| 38 | DEFINE_AEABI_DCMP(le) | |
| 39 | DEFINE_AEABI_DCMP(ge) | |
| 40 | DEFINE_AEABI_DCMP(gt) |