Prepare for radical source tree reorganization. zack/build-layout-experiment

All top-level files and directories are moved into a temporary storage
directory, REORG.TODO, except for files that will certainly still
exist in their current form at top level when we're done (COPYING,
COPYING.LIB, LICENSES, NEWS, README), all old ChangeLog files (which
are moved to the new directory OldChangeLogs, instead), and the
generated file INSTALL (which is just deleted; in the new order, there
will be no generated files checked into version control).

1 files changed, 59 insertions, 0 deletions

diff --git a/REORG.TODO/sysdeps/powerpc/powerpc32/power6/fpu/s_llround.S b/REORG.TODO/sysdeps/powerpc/powerpc32/power6/fpu/s_llround.S
new file mode 100644
index 0000000000..83ba999a39
--- /dev/null
+++ b/REORG.TODO/sysdeps/powerpc/powerpc32/power6/fpu/s_llround.S
@@ -0,0 +1,59 @@
+/* lround function.  POWER5+, PowerPC32 version.
+   Copyright (C) 2006-2017 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>
+#include <math_ldbl_opt.h>
+
+/* long [r3] llround (float x [fp1])
+   IEEE 1003.1 lround function.  IEEE specifies "round to the nearest
+   integer value, rounding halfway cases away from zero, regardless of
+   the current rounding mode."  However PowerPC Architecture defines
+   "round to Nearest" as "Choose the best approximation. In case of a
+   tie, choose the one that is even (least significant bit o).".
+   So we pre-round using the V2.02 Floating Round to Integer Nearest
+   instruction before we use the Floating Convert to Integer Word with
+   round to zero instruction.  */
+
+	.machine	"power5"
+ENTRY (__llround)
+	stwu    r1,-16(r1)
+	cfi_adjust_cfa_offset (16)
+	frin	fp2,fp1
+	fctidz	fp3,fp2		/* Convert To Integer Word lround toward 0.  */
+	stfd	fp3,8(r1)
+/* Insure the following load is in a different dispatch group by
+   inserting "group ending nop".  */
+	ori	r1,r1,0
+	lwz	r3,8+HIWORD(r1)
+	lwz	r4,8+LOWORD(r1)
+	addi	r1,r1,16
+	blr
+	END (__llround)
+
+weak_alias (__llround, llround)
+
+strong_alias (__llround, __llroundf)
+weak_alias (__llround, llroundf)
+
+#ifdef NO_LONG_DOUBLE
+weak_alias (__llround, llroundl)
+strong_alias (__llround, __llroundl)
+#endif
+#if LONG_DOUBLE_COMPAT(libm, GLIBC_2_1)
+compat_symbol (libm, __llround, llroundl, GLIBC_2_1)
+#endif