eqsf2vfp.S revision 2d1fdb26e458c4ddc04155c1d421bced3ba90cd0
1//===-- eqsf2vfp.S - Implement eqsf2vfp -----------------------------------===// 2// 3// The LLVM Compiler Infrastructure 4// 5// This file is dual licensed under the MIT and the University of Illinois Open 6// Source Licenses. See LICENSE.TXT for details. 7// 8//===----------------------------------------------------------------------===// 9 10#include "../assembly.h" 11 12// 13// extern int __eqsf2vfp(float a, float b); 14// 15// Returns one iff a == b and neither is NaN. 16// Uses Darwin calling convention where single precision arguments are passsed 17// like 32-bit ints 18// 19 .syntax unified 20 .p2align 2 21DEFINE_COMPILERRT_FUNCTION(__eqsf2vfp) 22 vmov s14, r0 // move from GPR 0 to float register 23 vmov s15, r1 // move from GPR 1 to float register 24 vcmp.f32 s14, s15 25 vmrs apsr_nzcv, fpscr 26 moveq r0, #1 // set result register to 1 if equal 27 movne r0, #0 28 bx lr 29END_COMPILERRT_FUNCTION(__eqsf2vfp) 30