| Stephen Hines | 2d1fdb2 | 2014-05-28 23:58:16 -0700 | [diff] [blame^] | 1 | //===-- fixsfsivfp.S - Implement fixsfsivfp -----------------------===// |
| 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 | // |
| 13 | // extern int __fixsfsivfp(float a); |
| 14 | // |
| 15 | // Converts single precision float to a 32-bit int rounding towards zero. |
| 16 | // Uses Darwin calling convention where a single precision parameter is |
| 17 | // passed in a GPR.. |
| 18 | // |
| 19 | .syntax unified |
| 20 | .p2align 2 |
| 21 | DEFINE_COMPILERRT_FUNCTION(__fixsfsivfp) |
| 22 | vmov s15, r0 // load float register from R0 |
| 23 | vcvt.s32.f32 s15, s15 // convert single to 32-bit int into s15 |
| 24 | vmov r0, s15 // move s15 to result register |
| 25 | bx lr |
| 26 | END_COMPILERRT_FUNCTION(__fixsfsivfp) |