1 files changed, 114 insertions, 0 deletions
diff --git a/include/iprt/nocrt/x86/math.h b/include/iprt/nocrt/x86/math.h
new file mode 100644
index 00000000..1aa223a3
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+++ b/include/iprt/nocrt/x86/math.h
@@ -0,0 +1,114 @@
+/** @file
+ * IPRT / No-CRT - math.h, x86 inlined functions.
+ */
+
+/*
+ * Copyright (C) 2006-2022 Oracle and/or its affiliates.
+ *
+ * This file is part of VirtualBox base platform packages, as
+ * available from https://www.virtualbox.org.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation, in version 3 of the
+ * License.
+ *
+ * This program 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
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <https://www.gnu.org/licenses>.
+ *
+ * The contents of this file may alternatively be used under the terms
+ * of the Common Development and Distribution License Version 1.0
+ * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
+ * in the VirtualBox distribution, in which case the provisions of the
+ * CDDL are applicable instead of those of the GPL.
+ *
+ * You may elect to license modified versions of this file under the
+ * terms and conditions of either the GPL or the CDDL or both.
+ *
+ * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
+ */
+
+#ifndef IPRT_INCLUDED_nocrt_x86_math_h
+#define IPRT_INCLUDED_nocrt_x86_math_h
+#ifndef RT_WITHOUT_PRAGMA_ONCE
+# pragma once
+#endif
+
+#include <iprt/asm.h>
+
+#if RT_INLINE_ASM_GNU_STYLE
+
+DECLINLINE(long double) inline_atan2l(long double lrd1, long double lrd2)
+{
+    long double lrdResult;
+    __asm__ __volatile__("fpatan"
+                         : "=t" (lrdResult)
+                         : "u" (lrd1),
+                           "0" (lrd2)
+                         : "st(1)");
+    return lrdResult;
+}
+
+DECLINLINE(long double) inline_rintl(long double lrd)
+{
+    long double lrdResult;
+    __asm__ __volatile__("frndint"
+                         : "=t" (lrdResult)
+                         : "0" (lrd));
+    return lrdResult;
+}
+
+DECLINLINE(float) inline_rintf(float rf)
+{
+    return (float)inline_rintl(rf);
+}
+
+DECLINLINE(double) inline_rint(double rd)
+{
+    return (double)inline_rintl(rd);
+}
+
+DECLINLINE(long double) inline_sqrtl(long double lrd)
+{
+    long double lrdResult;
+    __asm__ __volatile__("fsqrt"
+                         : "=t" (lrdResult)
+                         : "0" (lrd));
+    return lrdResult;
+}
+
+DECLINLINE(float) inline_sqrtf(float rf)
+{
+    return (float)inline_sqrtl(rf);
+}
+
+DECLINLINE(double) inline_sqrt(double rd)
+{
+    return (double)inline_sqrtl(rd);
+}
+
+
+# undef atan2l
+# define atan2l(lrd1, lrd2)        inline_atan2l(lrd1, lrd2)
+# undef rint
+# define rint(rd)                  inline_rint(rd)
+# undef rintf
+# define rintf(rf)                 inline_rintf(rf)
+# undef rintl
+# define rintl(lrd)                inline_rintl(lrd)
+# undef sqrt
+# define sqrt(rd)                  inline_sqrt(rd)
+# undef sqrtf
+# define sqrtf(rf)                 inline_sqrtf(rf)
+# undef sqrtl
+# define sqrtl(lrd)                inline_sqrtl(lrd)
+
+#endif /* RT_INLINE_ASM_GNU_STYLE */
+
+#endif /* !IPRT_INCLUDED_nocrt_x86_math_h */
+