| //===-- unorddf2vfp.S - Implement unorddf2vfp ------------------------------===// |
| // |
| // 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 int __unorddf2vfp(double a, double b); |
| // |
| // Returns one iff a or b is NaN |
| // Uses Darwin calling convention where double precision arguments are passsed |
| // like in GPR pairs. |
| // |
| DEFINE_COMPILERRT_FUNCTION(__unorddf2vfp) |
| fmdrr d6, r0, r1 // load r0/r1 pair in double register |
| fmdrr d7, r2, r3 // load r2/r3 pair in double register |
| fcmpd d6, d7 |
| fmstat |
| movvs r0, #1 // set result register to 1 if "overflow" (any NaNs) |
| movvc r0, #0 |
| bx lr |
