PR target/14798:

gcc:
	* sh.c (pragma_interrupt, trap_exit, sp_switch): Remove variable.
	(pragma_trap, pragma_nosave_low_regs): Likewise.
	(current_function_anonymous_args): Likewise.
	(sh_deferred_function_attributes): New variable.
	(sh_deferred_function_attributes_tail): Likewise.
	(print_operand): For '@', look up trap_exit attribute.
	(calc_live_regs): Look up trapa_handler attribute.  For trapa
	handlers, save/restore fpscr, but don't do any other
	interrupt-specific saves.
	Don't save r0..r7 if the nosave_low_regs attribute is in effect.
	Fix check for partially saved registers to check for SHmedia.
	(sh_expand_prologue, sh_expand_epilogue): Look up sp_switch attribute.
	(sh_output_function_epilogue): Don't clear any of the removed
	variables.
	(sh_insert_attributes): Don't check pragma_interrupt.
	Insert deferred attributes.  Check that interrupt attribute is
	present for other attributes that require its presence.
	(sh_attribute_table): Add new attributes trapa_handler and
	nosave_low_regs.
	(sh_handle_sp_switch_attribute, sh_handle_trap_exit_attribute):
	Don't check for pragma_interrupt.  Don't store argument.
	* sh.h (pragma_interrupt, sp_switch): Don't declare.
	(sh_deferred_function_attributes): Declare.
	(sh_deferred_function_attributes_tail): Likewise.
	* sh.md (sp_switch_1): Add operand.  Change generator caller.
	(sh_pr_interrupt, sh_pr_trapa, sh_pr_nosave_low_regs): Remove.
	(*return_i): Don't use when trap_exit attribute is in effect.
	(*return_trapa): New insn pattern.
	* sh-c.c: New file.
	* config.gcc (sh[123456ble]*-* | sh-*-*): New trailer stanza,
	setting c_target_objs and cxx_target_objs.
	* t-sh: Add rule for sh-c.o.
gcc/testsuite:
	* gcc.dg/pragma-isr.c: Added target sh[1234ble]*-*-*.
	* gcc.dg/pragma-isr2.c, gcc.dg/pragma-isr-trapa.c: New tests.
	* gcc.dg/pragma-isr-trapa2.c: Likewise.
	* gcc.dg/pragma-isr-nosave_low_regs.c: Likewise.
	* gcc.dg/pragma-isr-trap_exit.c: Likewise.
	* gcc.dg/attr-isr.c, gcc.dg/attr-isr-trapa.c: Likewise.
	* gcc.dg/attr-isr-trap_exit.c: Likewise.
	* gcc.dg/attr-isr-nosave_low_regs.c: Likewise.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@110398 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 69 insertions, 0 deletions

diff --git a/gcc/config/sh/sh-c.c b/gcc/config/sh/sh-c.c
new file mode 100644
index 00000000000..7b9ec1c1e4d
--- /dev/null
+++ b/gcc/config/sh/sh-c.c
@@ -0,0 +1,69 @@
+/* Pragma handling for GCC for Renesas / SuperH SH.
+   Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
+   2003, 2004, 2005, 2006 Free Software Foundation, Inc.
+   Contributed by Joern Rennecke <joern.rennecke@st.com>.
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GCC 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 General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GCC; see the file COPYING.  If not, write to
+the Free Software Foundation, 51 Franklin Street, Fifth Floor,
+Boston, MA 02110-1301, USA.  */
+
+#include "config.h"
+#include "system.h"
+#include "coretypes.h"
+#include "tm.h"
+#include "tree.h"
+#include "tm_p.h"
+
+/* Handle machine specific pragmas to be semi-compatible with Renesas
+   compiler.  */
+
+/* Add ATTR to the attributes of the current function.  If there is no
+   such function, save it to be added to the attributes of the next
+   function.  */
+static void
+sh_add_function_attribute (const char *attr)
+{
+  tree id = get_identifier (attr);
+
+  if (current_function_decl)
+    decl_attributes (&current_function_decl,
+		     tree_cons (id, NULL_TREE, NULL_TREE), 0);
+  else
+    {
+      *sh_deferred_function_attributes_tail
+	= tree_cons (id, NULL_TREE, *sh_deferred_function_attributes_tail);
+      sh_deferred_function_attributes_tail
+	= &TREE_CHAIN (*sh_deferred_function_attributes_tail);
+    }
+}
+
+void
+sh_pr_interrupt (struct cpp_reader *pfile ATTRIBUTE_UNUSED)
+{
+  sh_add_function_attribute ("interrupt_handler");
+}
+
+void
+sh_pr_trapa (struct cpp_reader *pfile ATTRIBUTE_UNUSED)
+{
+  sh_add_function_attribute ("trapa_handler");
+}
+
+void
+sh_pr_nosave_low_regs (struct cpp_reader *pfile ATTRIBUTE_UNUSED)
+{
+  sh_add_function_attribute ("nosave_low_regs");
+}