Initial TI PRU libgcc port

libgcc/ChangeLog:

2019-06-12  Dimitar Dimitrov  <dimitar@dinux.eu>

	* config.host: Add PRU target.
	* config/pru/asri.c: New file.
	* config/pru/eqd.c: New file.
	* config/pru/eqf.c: New file.
	* config/pru/ged.c: New file.
	* config/pru/gef.c: New file.
	* config/pru/gtd.c: New file.
	* config/pru/gtf.c: New file.
	* config/pru/led.c: New file.
	* config/pru/lef.c: New file.
	* config/pru/lib2bitcountHI.c: New file.
	* config/pru/lib2divHI.c: New file.
	* config/pru/lib2divQI.c: New file.
	* config/pru/lib2divSI.c: New file.
	* config/pru/libgcc-eabi.ver: New file.
	* config/pru/ltd.c: New file.
	* config/pru/ltf.c: New file.
	* config/pru/mpyll.S: New file.
	* config/pru/pru-abi.h: New file.
	* config/pru/pru-asm.h: New file.
	* config/pru/pru-divmod.h: New file.
	* config/pru/sfp-machine.h: New file.
	* config/pru/t-pru: New file.

From-SVN: r272204

1 files changed, 45 insertions, 0 deletions

diff --git a/libgcc/config/pru/ged.c b/libgcc/config/pru/ged.c
new file mode 100644
index 00000000000..982a994305e
--- /dev/null
+++ b/libgcc/config/pru/ged.c
@@ -0,0 +1,45 @@
+/* Software floating-point emulation.
+   Return 1 iff a >= b, 0 otherwise.
+   Copyright (C) 1997-2019 Free Software Foundation, Inc.
+   Contributed by Richard Henderson (rth@cygnus.com) and
+		  Jakub Jelinek (jj@ultra.linux.cz).
+
+   This file 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.
+
+   In addition to the permissions in the GNU Lesser General Public
+   License, the Free Software Foundation gives you unlimited
+   permission to link the compiled version of this file into
+   combinations with other programs, and to distribute those
+   combinations without any restriction coming from the use of this
+   file.  (The Lesser General Public License restrictions do apply in
+   other respects; for example, they cover modification of the file,
+   and distribution when not linked into a combine executable.)
+
+   This file 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 GCC; see the file COPYING.LIB.  If not see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <soft-fp/soft-fp.h>
+#include <soft-fp/double.h>
+
+CMPtype __pruabi_ged(DFtype a, DFtype b)
+{
+  FP_DECL_EX;
+  FP_DECL_D(A); FP_DECL_D(B);
+  CMPtype r;
+
+  FP_UNPACK_RAW_D(A, a);
+  FP_UNPACK_RAW_D(B, b);
+  FP_CMP_D(r, A, B, -2, 2);
+  FP_HANDLE_EXCEPTIONS;
+
+  return r >= 0;
+}