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[PATCH] Optimized 64-bit sparc assembler for finite{,f} andisinf{,f}.
- From: David Miller <davem at davemloft dot net>
- To: libc-alpha at sourceware dot org
- Date: Fri, 02 Mar 2012 01:18:29 -0500 (EST)
- Subject: [PATCH] Optimized 64-bit sparc assembler for finite{,f} andisinf{,f}.
Like some of the cases in the previous patch, this is just mainly
undoing the butchering GCC does to the C version of these routines.
Committed to master.
* sysdeps/sparc/sparc64/fpu/s_finite.S: New file.
* sysdeps/sparc/sparc64/fpu/s_finitef.S: New file.
* sysdeps/sparc/sparc64/fpu/s_isinf.S: New file.
* sysdeps/sparc/sparc64/fpu/s_isinff.S: New file.
---
ChangeLog | 5 ++++
sysdeps/sparc/sparc64/fpu/s_finite.S | 31 ++++++++++++++++++++++++++++++
sysdeps/sparc/sparc64/fpu/s_finitef.S | 31 ++++++++++++++++++++++++++++++
sysdeps/sparc/sparc64/fpu/s_isinf.S | 34 +++++++++++++++++++++++++++++++++
sysdeps/sparc/sparc64/fpu/s_isinff.S | 33 ++++++++++++++++++++++++++++++++
5 files changed, 134 insertions(+), 0 deletions(-)
create mode 100644 sysdeps/sparc/sparc64/fpu/s_finite.S
create mode 100644 sysdeps/sparc/sparc64/fpu/s_finitef.S
create mode 100644 sysdeps/sparc/sparc64/fpu/s_isinf.S
create mode 100644 sysdeps/sparc/sparc64/fpu/s_isinff.S
diff --git a/ChangeLog b/ChangeLog
index 31412c3..735ac66 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,10 @@
2012-03-01 David S. Miller <davem@davemloft.net>
+ * sysdeps/sparc/sparc64/fpu/s_finite.S: New file.
+ * sysdeps/sparc/sparc64/fpu/s_finitef.S: New file.
+ * sysdeps/sparc/sparc64/fpu/s_isinf.S: New file.
+ * sysdeps/sparc/sparc64/fpu/s_isinff.S: New file.
+
* sysdeps/sparc/sparc32/fpu/s_signbit.S: New file.
* sysdeps/sparc/sparc32/fpu/s_signbitf.S: New file.
* sysdeps/sparc/sparc32/fpu/s_signbitl.S: New file.
diff --git a/sysdeps/sparc/sparc64/fpu/s_finite.S b/sysdeps/sparc/sparc64/fpu/s_finite.S
new file mode 100644
index 0000000..f93297e
--- /dev/null
+++ b/sysdeps/sparc/sparc64/fpu/s_finite.S
@@ -0,0 +1,31 @@
+/* finite(). sparc64 version.
+ Copyright (C) 2012 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
+ <http://www.gnu.org/licenses/>. */
+
+#include <sysdep.h>
+
+ENTRY (__finite)
+ fabsd %f0, %f0
+ st %f0, [%sp + STACK_BIAS + 128]
+ sethi %hi(0x7ff00000), %o2
+ ld [%sp + STACK_BIAS + 128], %o0
+ sub %o0, %o2, %o0
+ retl
+ srl %o0, 31, %o0
+END (__finite)
+hidden_def (__finite)
+weak_alias (__finite, finite)
diff --git a/sysdeps/sparc/sparc64/fpu/s_finitef.S b/sysdeps/sparc/sparc64/fpu/s_finitef.S
new file mode 100644
index 0000000..2ebac99
--- /dev/null
+++ b/sysdeps/sparc/sparc64/fpu/s_finitef.S
@@ -0,0 +1,31 @@
+/* finitef(). sparc64 version.
+ Copyright (C) 2012 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
+ <http://www.gnu.org/licenses/>. */
+
+#include <sysdep.h>
+
+ENTRY (__finitef)
+ fabss %f1, %f0
+ st %f0, [%sp + STACK_BIAS + 128]
+ sethi %hi(0x7f800000), %o2
+ ld [%sp + STACK_BIAS + 128], %o0
+ sub %o0, %o2, %o0
+ retl
+ srl %o0, 31, %o0
+END (__finitef)
+hidden_def (__finitef)
+weak_alias (__finitef, finitef)
diff --git a/sysdeps/sparc/sparc64/fpu/s_isinf.S b/sysdeps/sparc/sparc64/fpu/s_isinf.S
new file mode 100644
index 0000000..20b54c0
--- /dev/null
+++ b/sysdeps/sparc/sparc64/fpu/s_isinf.S
@@ -0,0 +1,34 @@
+/* isinf(). sparc64 version.
+ Copyright (C) 2012 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
+ <http://www.gnu.org/licenses/>. */
+
+#include <sysdep.h>
+
+ENTRY (__isinf)
+ std %f0, [%sp + STACK_BIAS + 128]
+ sethi %hi(0x7ff00000), %o2
+ ldx [%sp + STACK_BIAS + 128], %g1
+ sllx %o2, 32, %o2
+ sllx %g1, 1, %o4
+ srlx %o4, 1, %o5
+ srax %g1, 62, %o0
+ xor %o5, %o2, %o3
+ retl
+ movrne %o3, %g0, %o0
+END (__isinf)
+hidden_def (__isinf)
+weak_alias (__isinf, isinf)
diff --git a/sysdeps/sparc/sparc64/fpu/s_isinff.S b/sysdeps/sparc/sparc64/fpu/s_isinff.S
new file mode 100644
index 0000000..302ff8d
--- /dev/null
+++ b/sysdeps/sparc/sparc64/fpu/s_isinff.S
@@ -0,0 +1,33 @@
+/* isinff(). sparc64 version.
+ Copyright (C) 2012 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
+ <http://www.gnu.org/licenses/>. */
+
+#include <sysdep.h>
+
+ENTRY (__isinff)
+ st %f1, [%sp + STACK_BIAS + 128]
+ sethi %hi(0x7f800000), %o2
+ lduw [%sp + STACK_BIAS + 128], %g1
+ sll %g1, 1, %o4
+ srl %o4, 1, %o5
+ sra %g1, 30, %o0
+ xor %o5, %o2, %o3
+ retl
+ movrne %o3, %g0, %o0
+END (__isinff)
+hidden_def (__isinff)
+weak_alias (__isinff, isinff)
--
1.7.6.401.g6a319