diff options
Diffstat (limited to 'lib/builtins/arm/fixsfsivfp.S')
| -rw-r--r-- | lib/builtins/arm/fixsfsivfp.S | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/lib/builtins/arm/fixsfsivfp.S b/lib/builtins/arm/fixsfsivfp.S new file mode 100644 index 000000000000..3d0d0f56d235 --- /dev/null +++ b/lib/builtins/arm/fixsfsivfp.S @@ -0,0 +1,26 @@ +//===-- fixsfsivfp.S - Implement fixsfsivfp -----------------------===// +// +// 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 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) + 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 + bx lr +END_COMPILERRT_FUNCTION(__fixsfsivfp) |