freebsd-dev/contrib/compiler-rt/lib/builtins/arm/floatunssisfvfp.S
Dimitry Andric f4341a5a66 Update compiler-rt to trunk r224034. This brings a number of new
builtins, and also the various sanitizers.  Support for these will be
added in a later commit.
2015-01-08 19:47:10 +00:00

27 lines
909 B
ArmAsm

//===-- floatunssisfvfp.S - Implement floatunssisfvfp ---------------------===//
//
// 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 float __floatunssisfvfp(unsigned 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(__floatunssisfvfp)
vmov s15, r0 // move int to float register s15
vcvt.f32.u32 s15, s15 // convert 32-bit int in s15 to float in s15
vmov r0, s15 // move s15 to result register
bx lr
END_COMPILERRT_FUNCTION(__floatunssisfvfp)