| Nick Kledzik | e80e978 | 2009-09-12 01:23:48 +0000 | [diff] [blame] | 1 | //===-- negdf2vfp.S - Implement negdf2vfp ---------------------------------===// |
| 2 | // |
| 3 | // The LLVM Compiler Infrastructure |
| 4 | // |
| 5 | // This file is distributed under the University of Illinois Open Source |
| 6 | // License. See LICENSE.TXT for details. |
| 7 | // |
| 8 | //===----------------------------------------------------------------------===// |
| 9 | |
| Daniel Dunbar | 19336a2 | 2009-10-27 17:49:50 +0000 | [diff] [blame] | 10 | #include "../assembly.h" |
| Nick Kledzik | e80e978 | 2009-09-12 01:23:48 +0000 | [diff] [blame] | 11 | |
| 12 | // |
| 13 | // extern double __negdf2vfp(double a, double b); |
| 14 | // |
| 15 | // Returns the negation a double precision floating point numbers using the |
| 16 | // Darwin calling convention where double arguments are passsed in GPR pairs. |
| 17 | // |
| Daniel Dunbar | b4b1e8c | 2009-10-27 17:50:21 +0000 | [diff] [blame^] | 18 | DEFINE_COMPILERRT_FUNCTION(__negdf2vfp) |
| Nick Kledzik | e80e978 | 2009-09-12 01:23:48 +0000 | [diff] [blame] | 19 | eor r1, r1, #-2147483648 // flip sign bit on double in r0/r1 pair |
| 20 | bx lr |