| //===-- subsf3vfp.S - Implement subsf3vfp ---------------------------------===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "../assembly.h" |
| |
| // |
| // extern float __subsf3vfp(float a, float b); |
| // |
| // Returns the difference between two single precision floating point numbers |
| // using the Darwin calling convention where single arguments are passsed |
| // like 32-bit ints. |
| // |
| DEFINE_COMPILERRT_FUNCTION(__subsf3vfp) |
| fmsr s14, r0 // move first param from r0 into float register |
| fmsr s15, r1 // move second param from r1 into float register |
| fsubs s14, s14, s15 |
| fmrs r0, s14 // move result back to r0 |
| bx lr |
