| //===-- negdf2vfp.S - Implement negdf2vfp ---------------------------------===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is dual licensed under the MIT and the University of Illinois Open |
| // Source Licenses. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "../assembly.h" |
| |
| // |
| // extern double __negdf2vfp(double a, double b); |
| // |
| // Returns the negation a double precision floating point numbers using the |
| // Darwin calling convention where double arguments are passsed in GPR pairs. |
| // |
| .syntax unified |
| .p2align 2 |
| DEFINE_COMPILERRT_FUNCTION(__negdf2vfp) |
| #if defined(COMPILER_RT_ARMHF_TARGET) |
| vneg.f64 d0, d0 |
| #else |
| eor r1, r1, #-2147483648 // flip sign bit on double in r0/r1 pair |
| #endif |
| bx lr |
| END_COMPILERRT_FUNCTION(__negdf2vfp) |
| |
| NO_EXEC_STACK_DIRECTIVE |
| |
