10 files changed, 316 insertions, 0 deletions
diff --git a/sysdeps/loongarch/fpu/s_finite.c b/sysdeps/loongarch/fpu/s_finite.c
new file mode 100644
index 0000000..a2e98f0
--- /dev/null
+++ b/sysdeps/loongarch/fpu/s_finite.c
@@ -0,0 +1,30 @@
+/* finite().  LoongArch version.
+   Copyright (C) 2022 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   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
+   <https://www.gnu.org/licenses/>.  */
+
+#include <math.h>
+#include <fenv_private.h>
+
+int
+__finite (double x)
+{
+  int x_cond;
+  asm volatile ("fclass.d \t%0, %1" : "=f" (x_cond) : "f" (x));
+  return  x_cond & ~(_FCLASS_INF | _FCLASS_NAN);
+}
+hidden_def (__finite)
+weak_alias (__finite, finite)
diff --git a/sysdeps/loongarch/fpu/s_finitef.c b/sysdeps/loongarch/fpu/s_finitef.c
new file mode 100644
index 0000000..9ffab38
--- /dev/null
+++ b/sysdeps/loongarch/fpu/s_finitef.c
@@ -0,0 +1,30 @@
+/* finitef().  LoongArch version.
+   Copyright (C) 2022 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   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
+   <https://www.gnu.org/licenses/>.  */
+
+#include <math.h>
+#include <fenv_private.h>
+
+int
+__finitef (float x)
+{
+  int x_cond;
+  asm volatile ("fclass.s \t%0, %1" : "=f" (x_cond) : "f" (x));
+  return  x_cond & ~(_FCLASS_INF | _FCLASS_NAN);
+}
+hidden_def (__finitef)
+weak_alias (__finitef, finitef)
diff --git a/sysdeps/loongarch/fpu/s_fpclassify.c b/sysdeps/loongarch/fpu/s_fpclassify.c
new file mode 100644
index 0000000..3f4d95d
--- /dev/null
+++ b/sysdeps/loongarch/fpu/s_fpclassify.c
@@ -0,0 +1,38 @@
+/* fpclassify().  LoongArch version.
+   Copyright (C) 2017-2022 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   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
+   <https://www.gnu.org/licenses/>.  */
+
+#include <math.h>
+#include <fenv_private.h>
+
+int
+__fpclassify (double x)
+{
+  int cls;
+  asm volatile ("fclass.d \t%0, %1" : "=f" (cls) : "f" (x));
+
+  if (__glibc_likely (!!(cls & _FCLASS_NORM)))
+    return FP_NORMAL;
+  if (__glibc_likely (!!(cls & _FCLASS_ZERO)))
+    return FP_ZERO;
+  if (__glibc_likely (!!(cls & _FCLASS_SUBNORM)))
+    return FP_SUBNORMAL;
+  if (__glibc_likely (!!(cls & _FCLASS_INF)))
+    return FP_INFINITE;
+  return FP_NAN;
+}
+libm_hidden_def (__fpclassify)
diff --git a/sysdeps/loongarch/fpu/s_fpclassifyf.c b/sysdeps/loongarch/fpu/s_fpclassifyf.c
new file mode 100644
index 0000000..b7c8b25
--- /dev/null
+++ b/sysdeps/loongarch/fpu/s_fpclassifyf.c
@@ -0,0 +1,38 @@
+/* Copyright (C) 2017-2022 Free Software Foundation, Inc.
+
+   This file is part of the GNU C Library.
+
+   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
+   <https://www.gnu.org/licenses/>.  */
+
+#include <math.h>
+#include <fenv_private.h>
+
+int
+__fpclassifyf (float x)
+{
+  int cls;
+  asm volatile ("fclass.s \t%0, %1" : "=f" (cls) : "f" (x));
+
+  if (__glibc_likely (!!(cls & _FCLASS_NORM)))
+    return FP_NORMAL;
+  if (__glibc_likely (!!(cls & _FCLASS_ZERO)))
+    return FP_ZERO;
+  if (__glibc_likely (!!(cls & _FCLASS_SUBNORM)))
+    return FP_SUBNORMAL;
+  if (__glibc_likely (!!(cls & _FCLASS_INF)))
+    return FP_INFINITE;
+  return FP_NAN;
+}
+libm_hidden_def (__fpclassifyf)
diff --git a/sysdeps/loongarch/fpu/s_isinf.c b/sysdeps/loongarch/fpu/s_isinf.c
new file mode 100644
index 0000000..c7a6784
--- /dev/null
+++ b/sysdeps/loongarch/fpu/s_isinf.c
@@ -0,0 +1,30 @@
+/* isinf().  LoongArch version.
+   Copyright (C) 2017-2022 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   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
+   <https://www.gnu.org/licenses/>.  */
+
+#include <math.h>
+#include <fenv_private.h>
+
+int
+__isinf (double x)
+{
+  int x_cond;
+  asm volatile ("fclass.d \t%0, %1" : "=f" (x_cond) : "f" (x));
+  return -((x_cond & _FCLASS_MINF) ? 1 : 0) | ((x_cond & _FCLASS_PINF) ? 1 : 0);
+}
+hidden_def (__isinf)
+weak_alias (__isinf, isinf)
diff --git a/sysdeps/loongarch/fpu/s_isinff.c b/sysdeps/loongarch/fpu/s_isinff.c
new file mode 100644
index 0000000..dcb4e04
--- /dev/null
+++ b/sysdeps/loongarch/fpu/s_isinff.c
@@ -0,0 +1,30 @@
+/* isinff().  LoongArch version.
+   Copyright (C) 2017-2022 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   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
+   <https://www.gnu.org/licenses/>.  */
+
+#include <math.h>
+#include <fenv_private.h>
+
+int
+__isinff (float x)
+{
+  int x_cond;
+  asm volatile ("fclass.s \t%0, %1" : "=f" (x_cond) : "f" (x));
+  return -((x_cond & _FCLASS_MINF) ? 1 : 0) | ((x_cond & _FCLASS_PINF) ? 1 : 0);
+}
+hidden_def (__isinff)
+weak_alias (__isinff, isinff)
diff --git a/sysdeps/loongarch/fpu/s_isnan.c b/sysdeps/loongarch/fpu/s_isnan.c
new file mode 100644
index 0000000..62bb2e2
--- /dev/null
+++ b/sysdeps/loongarch/fpu/s_isnan.c
@@ -0,0 +1,31 @@
+/* isnan().  LoongArch version.
+   Copyright (C) 2022 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   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
+   <https://www.gnu.org/licenses/>.  */
+
+#include <math.h>
+#include <fenv_private.h>
+
+int
+__isnan (double x)
+{
+  int x_cond;
+  asm volatile ("fclass.d \t%0, %1" : "=f" (x_cond) : "f" (x));
+
+  return (x_cond & _FCLASS_NAN) != 0;
+}
+hidden_def (__isnan)
+weak_alias (__isnan, isnan)
diff --git a/sysdeps/loongarch/fpu/s_isnanf.c b/sysdeps/loongarch/fpu/s_isnanf.c
new file mode 100644
index 0000000..bbdedb8
--- /dev/null
+++ b/sysdeps/loongarch/fpu/s_isnanf.c
@@ -0,0 +1,31 @@
+/* isnanf().  LoongArch version.
+   Copyright (C) 2022 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   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
+   <https://www.gnu.org/licenses/>.  */
+
+#include <math.h>
+#include <fenv_private.h>
+
+int
+__isnanf (float x)
+{
+  int x_cond;
+  asm volatile ("fclass.s \t%0, %1" : "=f" (x_cond) : "f" (x));
+
+  return (x_cond & _FCLASS_NAN) != 0;
+}
+hidden_def (__isnanf)
+weak_alias (__isnanf, isnanf)
diff --git a/sysdeps/loongarch/fpu/s_issignaling.c b/sysdeps/loongarch/fpu/s_issignaling.c
new file mode 100644
index 0000000..4fe0e2b
--- /dev/null
+++ b/sysdeps/loongarch/fpu/s_issignaling.c
@@ -0,0 +1,29 @@
+/* issignaling().  LoongArch version.
+   Copyright (C) 2022 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   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
+   <https://www.gnu.org/licenses/>.  */
+
+#include <math.h>
+#include <fenv_private.h>
+
+int
+__issignaling (double x)
+{
+  int x_cond;
+  asm volatile ("fclass.d \t%0, %1" : "=f" (x_cond) : "f" (x));
+  return (x_cond & _FCLASS_SNAN) != 0;
+}
+libm_hidden_def (__issignaling)
diff --git a/sysdeps/loongarch/fpu/s_issignalingf.c b/sysdeps/loongarch/fpu/s_issignalingf.c
new file mode 100644
index 0000000..d82abb0
--- /dev/null
+++ b/sysdeps/loongarch/fpu/s_issignalingf.c
@@ -0,0 +1,29 @@
+/* issignalingf().  LoongArch version.
+   Copyright (C) 2022 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   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
+   <https://www.gnu.org/licenses/>.  */
+
+#include <math.h>
+#include <fenv_private.h>
+
+int
+__issignalingf (float x)
+{
+  int x_cond;
+  asm volatile ("fclass.s \t%0, %1" : "=f" (x_cond) : "f" (x));
+  return (x_cond & _FCLASS_SNAN) != 0;
+}
+libm_hidden_def (__issignalingf)