1 //===-- floatunssisfvfp.S - Implement floatunssisfvfp ---------------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is dual licensed under the MIT and the University of Illinois Open
6 // Source Licenses. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 #include "../assembly.h"
13 // extern float __floatunssisfvfp(unsigned int a);
15 // Converts single precision float to a 32-bit int rounding towards zero.
16 // Uses Darwin calling convention where a single precision result is
21 DEFINE_COMPILERRT_FUNCTION(__floatunssisfvfp)
22 #if defined(COMPILER_RT_ARMHF_TARGET)
26 vmov s15, r0 // move int to float register s15
27 vcvt.f32.u32 s15, s15 // convert 32-bit int in s15 to float in s15
28 vmov r0, s15 // move s15 to result register
31 END_COMPILERRT_FUNCTION(__floatunssisfvfp)
33 NO_EXEC_STACK_DIRECTIVE