diff options
Diffstat (limited to 'contrib/llvm-project/compiler-rt/lib/builtins/arm/negsf2vfp.S')
| -rw-r--r-- | contrib/llvm-project/compiler-rt/lib/builtins/arm/negsf2vfp.S | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/contrib/llvm-project/compiler-rt/lib/builtins/arm/negsf2vfp.S b/contrib/llvm-project/compiler-rt/lib/builtins/arm/negsf2vfp.S new file mode 100644 index 000000000000..b6d3c618927f --- /dev/null +++ b/contrib/llvm-project/compiler-rt/lib/builtins/arm/negsf2vfp.S @@ -0,0 +1,29 @@ +//===-- negsf2vfp.S - Implement negsf2vfp ---------------------------------===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// + +#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 + |