/* Compute minimum of two numbers, regarding NaN as missing argument. Copyright (C) 2002-2017 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Andreas Jaeger , 2002. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. The GNU C Library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, see . */ #include .text ENTRY(__fminf) ucomiss %xmm0, %xmm1 jp 1f // jump if unordered minss %xmm1, %xmm0 jmp 2f 1: ucomiss %xmm1, %xmm1 // Is xmm1 a NaN? jp 3f // xmm0 is a NaN; xmm1 is not. Test if xmm0 is signaling. movss %xmm0, -4(%rsp) testb $0x40, -2(%rsp) jz 4f movss %xmm1, %xmm0 // otherwise return xmm1 ret 3: // xmm1 is a NaN; xmm0 may or may not be. ucomiss %xmm0, %xmm0 jp 4f // xmm1 is a NaN; xmm0 is not. Test if xmm1 is signaling. movss %xmm1, -4(%rsp) testb $0x40, -2(%rsp) jz 4f ret 4: // Both arguments are NaNs, or one is a signaling NaN. addss %xmm1, %xmm0 2: ret END(__fminf) weak_alias (__fminf, fminf)