diff options
Diffstat (limited to 'contrib/llvm-project/compiler-rt/lib/builtins/arm/floatsisfvfp.S')
| -rw-r--r-- | contrib/llvm-project/compiler-rt/lib/builtins/arm/floatsisfvfp.S | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/contrib/llvm-project/compiler-rt/lib/builtins/arm/floatsisfvfp.S b/contrib/llvm-project/compiler-rt/lib/builtins/arm/floatsisfvfp.S new file mode 100644 index 000000000000..a36bc5ee5ee0 --- /dev/null +++ b/contrib/llvm-project/compiler-rt/lib/builtins/arm/floatsisfvfp.S @@ -0,0 +1,33 @@ +//===-- floatsisfvfp.S - Implement floatsisfvfp ---------------------------===// +// +// 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 __floatsisfvfp(int a); +// +// Converts single precision float to a 32-bit int rounding towards zero. +// Uses Darwin calling convention where a single precision result is +// return in a GPR.. +// + .syntax unified + .p2align 2 +DEFINE_COMPILERRT_FUNCTION(__floatsisfvfp) +#if defined(COMPILER_RT_ARMHF_TARGET) + vmov s0, r0 + vcvt.f32.s32 s0, s0 +#else + vmov s15, r0 // move int to float register s15 + vcvt.f32.s32 s15, s15 // convert 32-bit int in s15 to float in s15 + vmov r0, s15 // move s15 to result register +#endif + bx lr +END_COMPILERRT_FUNCTION(__floatsisfvfp) + +NO_EXEC_STACK_DIRECTIVE + |