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).

7 files changed, 161 insertions, 0 deletions

diff --git a/REORG.TODO/sysdeps/powerpc/powerpc64/power6x/Implies b/REORG.TODO/sysdeps/powerpc/powerpc64/power6x/Implies
new file mode 100644
index 0000000000..9d68f39d22
--- /dev/null
+++ b/REORG.TODO/sysdeps/powerpc/powerpc64/power6x/Implies
@@ -0,0 +1,2 @@
+powerpc/powerpc64/power6/fpu
+powerpc/powerpc64/power6
diff --git a/REORG.TODO/sysdeps/powerpc/powerpc64/power6x/fpu/Implies b/REORG.TODO/sysdeps/powerpc/powerpc64/power6x/fpu/Implies
new file mode 100644
index 0000000000..30fa17646e
--- /dev/null
+++ b/REORG.TODO/sysdeps/powerpc/powerpc64/power6x/fpu/Implies
@@ -0,0 +1 @@
+powerpc/powerpc64/power6/fpu
diff --git a/REORG.TODO/sysdeps/powerpc/powerpc64/power6x/fpu/multiarch/Implies b/REORG.TODO/sysdeps/powerpc/powerpc64/power6x/fpu/multiarch/Implies
new file mode 100644
index 0000000000..410d289a6d
--- /dev/null
+++ b/REORG.TODO/sysdeps/powerpc/powerpc64/power6x/fpu/multiarch/Implies
@@ -0,0 +1 @@
+powerpc/powerpc64/power6/fpu/multiarch
diff --git a/REORG.TODO/sysdeps/powerpc/powerpc64/power6x/fpu/s_isnan.S b/REORG.TODO/sysdeps/powerpc/powerpc64/power6x/fpu/s_isnan.S
new file mode 100644
index 0000000000..b6e11ba0c3
--- /dev/null
+++ b/REORG.TODO/sysdeps/powerpc/powerpc64/power6x/fpu/s_isnan.S
@@ -0,0 +1,58 @@
+/* isnan().  PowerPC64 version.
+   Copyright (C) 2008-2017 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>
+
+/* int __isnan(x)  */
+	.machine power6
+EALIGN (__isnan, 4, 0)
+	CALL_MCOUNT 0
+	mftgpr	r4,fp1		/* copy FPR to GPR */
+	lis	r0,0x7ff0
+	ori	r1,r1,0
+	clrldi	r4,r4,1		/* x = fabs(x) */
+	sldi	r0,r0,32	/* const long r0 0x7ff00000 00000000 */
+	cmpd	cr7,r4,r0	/* if (fabs(x) <= inf) */
+	li	r3,0		/* then return 0 */
+	blelr+	cr7
+	li	r3,1		/* else return 1 */
+	blr
+	END (__isnan)
+
+hidden_def (__isnan)
+weak_alias (__isnan, isnan)
+
+/* It turns out that the 'double' version will also always work for
+   single-precision.  */
+strong_alias (__isnan, __isnanf)
+hidden_def (__isnanf)
+weak_alias (__isnanf, isnanf)
+
+#ifdef NO_LONG_DOUBLE
+strong_alias (__isnan, __isnanl)
+weak_alias (__isnan, isnanl)
+#endif
+
+#if !IS_IN (libm)
+# if LONG_DOUBLE_COMPAT(libc, GLIBC_2_0)
+compat_symbol (libc, __isnan, __isnanl, GLIBC_2_0);
+compat_symbol (libc, isnan, isnanl, GLIBC_2_0);
+# endif
+#endif
+
diff --git a/REORG.TODO/sysdeps/powerpc/powerpc64/power6x/fpu/s_llrint.S b/REORG.TODO/sysdeps/powerpc/powerpc64/power6x/fpu/s_llrint.S
new file mode 100644
index 0000000000..37aa69061c
--- /dev/null
+++ b/REORG.TODO/sysdeps/powerpc/powerpc64/power6x/fpu/s_llrint.S
@@ -0,0 +1,44 @@
+/* Round double to long int.  POWER6x PowerPC64 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>
+
+	.machine	"power6"
+/* long long int[r3] __llrint (double x[fp1])  */
+ENTRY (__llrint)
+	CALL_MCOUNT 0
+	fctid	fp13,fp1
+	mftgpr  r3,fp13
+	blr
+	END (__llrint)
+
+strong_alias (__llrint, __lrint)
+weak_alias (__llrint, llrint)
+weak_alias (__lrint, lrint)
+
+#ifdef NO_LONG_DOUBLE
+strong_alias (__llrint, __llrintl)
+weak_alias (__llrint, llrintl)
+strong_alias (__lrint, __lrintl)
+weak_alias (__lrint, lrintl)
+#endif
+#if LONG_DOUBLE_COMPAT(libm, GLIBC_2_1)
+compat_symbol (libm, __llrint, llrintl, GLIBC_2_1)
+compat_symbol (libm, __lrint, lrintl, GLIBC_2_1)
+#endif
diff --git a/REORG.TODO/sysdeps/powerpc/powerpc64/power6x/fpu/s_llround.S b/REORG.TODO/sysdeps/powerpc/powerpc64/power6x/fpu/s_llround.S
new file mode 100644
index 0000000000..62e1798785
--- /dev/null
+++ b/REORG.TODO/sysdeps/powerpc/powerpc64/power6x/fpu/s_llround.S
@@ -0,0 +1,54 @@
+/* llround function.  POWER6x PowerPC64 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 long [r3] llround (float x [fp1])
+   IEEE 1003.1 llround 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 Floating Convert to Integer Word with
+   round to zero instruction.  */
+
+	.machine	"power6"
+ENTRY (__llround)
+	CALL_MCOUNT 0
+	frin	fp2,fp1	/* Round to nearest +-0.5.  */
+	fctidz	fp3,fp2	/* Convert To Integer DW round toward 0.  */
+	mftgpr	r3,fp3  /* Transfer integer to R3.  */
+	blr
+	END (__llround)
+
+strong_alias (__llround, __lround)
+weak_alias (__llround, llround)
+weak_alias (__lround, lround)
+
+#ifdef NO_LONG_DOUBLE
+weak_alias (__llround, llroundl)
+strong_alias (__llround, __llroundl)
+weak_alias (__lround, lroundl)
+strong_alias (__lround, __lroundl)
+#endif
+#if LONG_DOUBLE_COMPAT(libm, GLIBC_2_1)
+compat_symbol (libm, __llround, llroundl, GLIBC_2_1)
+compat_symbol (libm, __lround, lroundl, GLIBC_2_1)
+#endif
diff --git a/REORG.TODO/sysdeps/powerpc/powerpc64/power6x/multiarch/Implies b/REORG.TODO/sysdeps/powerpc/powerpc64/power6x/multiarch/Implies
new file mode 100644
index 0000000000..bf5d6171a5
--- /dev/null
+++ b/REORG.TODO/sysdeps/powerpc/powerpc64/power6x/multiarch/Implies
@@ -0,0 +1 @@
+powerpc/powerpc64/power6/multiarch