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1 | //===-- gedf2vfp.S - Implement gedf2vfp -----------------------------------===// |
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 __gedf2vfp(double a, double b); | |
14 | // | |
15 | // Returns one iff a >= b and neither is NaN. | |
16 | // Uses Darwin calling convention where double precision arguments are passsed | |
17 | // like in GPR pairs. | |
18 | // | |
19 | .syntax unified | |
20 | .align 2 | |
21 | DEFINE_COMPILERRT_FUNCTION(__gedf2vfp) | |
22 | vmov d6, r0, r1 // load r0/r1 pair in double register | |
23 | vmov d7, r2, r3 // load r2/r3 pair in double register | |
24 | vcmp.f64 d6, d7 | |
25 | vmrs apsr_nzcv, fpscr | |
26 | movge r0, #1 // set result register to 1 if greater than or equal | |
27 | movlt r0, #0 | |
28 | bx lr | |
29 | END_COMPILERRT_FUNCTION(__gedf2vfp) |