hanchenye-llvm-project/compiler-rt/lib/arm/floatsisfvfp.S

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//===-- floatsisfvfp.S - Implement floatsisfvfp ---------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#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..
//
.globl ___floatsisfvfp
___floatsisfvfp:
fmsr s15, r0 // move int to float register s15
fsitos s15, s15 // convert 32-bit int in s15 to float in s15
fmrs r0, s15 // move s15 to result register
bx lr