diff options
Diffstat (limited to 'contrib/llvm-project/compiler-rt/lib/builtins/arm/fixsfsivfp.S')
| -rw-r--r-- | contrib/llvm-project/compiler-rt/lib/builtins/arm/fixsfsivfp.S | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/contrib/llvm-project/compiler-rt/lib/builtins/arm/fixsfsivfp.S b/contrib/llvm-project/compiler-rt/lib/builtins/arm/fixsfsivfp.S new file mode 100644 index 000000000000..30b2f3cf9364 --- /dev/null +++ b/contrib/llvm-project/compiler-rt/lib/builtins/arm/fixsfsivfp.S @@ -0,0 +1,33 @@ +//===-- fixsfsivfp.S - Implement fixsfsivfp -----------------------===// +// +// 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 int __fixsfsivfp(float a); +// +// Converts single precision float to a 32-bit int rounding towards zero. +// Uses Darwin calling convention where a single precision parameter is +// passed in a GPR.. +// + .syntax unified + .p2align 2 +DEFINE_COMPILERRT_FUNCTION(__fixsfsivfp) +#if defined(COMPILER_RT_ARMHF_TARGET) + vcvt.s32.f32 s0, s0 + vmov r0, s0 +#else + vmov s15, r0 // load float register from R0 + vcvt.s32.f32 s15, s15 // convert single to 32-bit int into s15 + vmov r0, s15 // move s15 to result register +#endif + bx lr +END_COMPILERRT_FUNCTION(__fixsfsivfp) + +NO_EXEC_STACK_DIRECTIVE + |