projects / rustc.git / blame
| Commit | Line | Data |
|---|---|---|
| 1a4d82fc JJ |
1 | //===-- fixunssfsivfp.S - Implement fixunssfsivfp -------------------------===// |
| 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 unsigned int __fixunssfsivfp(float a); | |
| 14 | // | |
| 15 | // Converts single precision float to a 32-bit unsigned int rounding towards | |
| 16 | // zero. All negative values become zero. | |
| 17 | // Uses Darwin calling convention where a single precision parameter is | |
| 18 | // passed in a GPR.. | |
| 19 | // | |
| 20 | .syntax unified | |
| 92a42be0 | 21 | .p2align 2 |
| 1a4d82fc JJ |
22 | DEFINE_COMPILERRT_FUNCTION(__fixunssfsivfp) |
| 23 | vmov s15, r0 // load float register from R0 | |
| 24 | vcvt.u32.f32 s15, s15 // convert single to 32-bit unsigned into s15 | |
| 25 | vmov r0, s15 // move s15 to result register | |
| 26 | bx lr | |
| 27 | END_COMPILERRT_FUNCTION(__fixunssfsivfp) |