| //===-- negsf2vfp.S - Implement negsf2vfp ---------------------------------===// |
| // |
| // 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 float __negsf2vfp(float a); |
| // |
| // Returns the negation of a single precision floating point numbers using the |
| // Darwin calling convention where single arguments are passsed like 32-bit ints |
| // |
| .syntax unified |
| .p2align 2 |
| DEFINE_COMPILERRT_FUNCTION(__negsf2vfp) |
| #if defined(COMPILER_RT_ARMHF_TARGET) |
| vneg.f32 s0, s0 |
| #else |
| eor r0, r0, #-2147483648 // flip sign bit on float in r0 |
| #endif |
| bx lr |
| END_COMPILERRT_FUNCTION(__negsf2vfp) |
| |
| NO_EXEC_STACK_DIRECTIVE |
| |
