Synchronize internal and external version. Merge the following patches:

-Added a more helpful error message when the profile is corrupted.
-Added check for abnormal ssa names in the analysis phase of the vectorizer
 so that it prevents a potential ICE.
-Replace floating-point calculations with fixed-point calculations when
 computing inlining priority to eliminate floating-point non-determinism
 on 32-bit x86.
-Use .init_array/.fini_array sections instead of .ctor/.dtor when
 configured with --enable-initfini-array.

Change-Id: I32f22dae5bcd4d229be321ee10dfeaa11a04cbac

7 files changed, 162 insertions, 0 deletions

diff --git a/gcc-4.4.3/gcc/config/avr/avr.c b/gcc-4.4.3/gcc/config/avr/avr.c
index 79607c3d9..442613dd1 100644
--- a/gcc-4.4.3/gcc/config/avr/avr.c
+++ b/gcc-4.4.3/gcc/config/avr/avr.c
@@ -4915,6 +4915,9 @@ avr_asm_init_sections (void)
 					 avr_output_progmem_section_asm_op,
 					 NULL);
   readonly_data_section = data_section;
+#ifdef NO_CTORS_DTORS_SECTIONS
+  elf_initfini_array_init_sections ();
+#endif
 }
 
 static unsigned int
diff --git a/gcc-4.4.3/gcc/config/initfini-array.c b/gcc-4.4.3/gcc/config/initfini-array.c
new file mode 100644
index 000000000..3a10365b4
--- /dev/null
+++ b/gcc-4.4.3/gcc/config/initfini-array.c
@@ -0,0 +1,78 @@
+/* Definitions for ELF systems with .init_array/.fini_array section
+   Copyright (C) 2010
+   Free Software Foundation, Inc.
+
+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 3, 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 COPYING3.  If not see
+<http://www.gnu.org/licenses/>.  */
+
+#include "config.h"
+#include "system.h"
+#include "coretypes.h"
+#include "output.h"
+#include "tree.h"
+#include "ggc.h"
+
+static GTY(()) section *init_array_section;
+static GTY(()) section *fini_array_section;
+
+void
+elf_initfini_array_init_sections (void)
+{
+  init_array_section = get_unnamed_section (0, output_section_asm_op,
+					    "\t.section\t.init_array");
+  fini_array_section = get_unnamed_section (0, output_section_asm_op,
+					    "\t.section\t.fini_array");
+}
+
+static section *
+get_elf_initfini_array_priority_section (int priority,
+					 bool constructor_p)
+{
+  section *sec;
+  if (priority != DEFAULT_INIT_PRIORITY)
+    {
+      char buf[18];
+      sprintf (buf, "%s.%.5u",
+	       constructor_p ? ".init_array" : ".fini_array",
+	       priority);
+      sec = get_section (buf, SECTION_WRITE, NULL_TREE);
+    }
+  else
+    sec = constructor_p ? init_array_section : fini_array_section;
+  return sec;
+}
+
+/* Use .init_array section for constructors. */
+
+void
+elf_init_array_asm_out_constructor (rtx symbol, int priority)
+{
+  section *sec = get_elf_initfini_array_priority_section (priority,
+							  true);
+  assemble_addr_to_section (symbol, sec);
+}
+
+/* Use .fini_array section for destructors. */
+
+void
+elf_fini_array_asm_out_destructor (rtx symbol, int priority)
+{
+  section *sec = get_elf_initfini_array_priority_section (priority,
+							  false);
+  assemble_addr_to_section (symbol, sec);
+}
+
+#include "gt-initfini-array.h"
diff --git a/gcc-4.4.3/gcc/config/initfini-array.h b/gcc-4.4.3/gcc/config/initfini-array.h
new file mode 100644
index 000000000..b0b422a8a
--- /dev/null
+++ b/gcc-4.4.3/gcc/config/initfini-array.h
@@ -0,0 +1,46 @@
+/* Definitions for ELF systems with .init_array/.fini_array section
+   support.
+   Copyright (C) 2010
+   Free Software Foundation, Inc.
+
+   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 3, 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 COPYING3.  If not see
+   <http://www.gnu.org/licenses/>.  */
+
+/* No need for .ctors/.dtors section since linker can place them in
+   .init_array/.fini_array section.  */
+#define NO_CTORS_DTORS_SECTIONS
+
+#undef INIT_SECTION_ASM_OP
+#undef FINI_SECTION_ASM_OP
+
+/* FIXME: INIT_ARRAY_SECTION_ASM_OP and FINI_ARRAY_SECTION_ASM_OP
+	  aren't used in any assembly codes.  But we have to define
+	  them to something.  */
+#define INIT_ARRAY_SECTION_ASM_OP Something
+#define FINI_ARRAY_SECTION_ASM_OP Something
+
+#ifndef TARGET_ASM_INIT_SECTIONS
+#define TARGET_ASM_INIT_SECTIONS elf_initfini_array_init_sections
+#endif
+extern void elf_initfini_array_init_sections (void);
+
+/* Use .init_array/.fini_array section for constructors and destructors. */
+#undef TARGET_ASM_CONSTRUCTOR
+#define TARGET_ASM_CONSTRUCTOR elf_init_array_asm_out_constructor
+#undef TARGET_ASM_DESTRUCTOR
+#define TARGET_ASM_DESTRUCTOR elf_fini_array_asm_out_destructor
+extern void elf_init_array_asm_out_constructor (rtx, int);
+extern void elf_fini_array_asm_out_destructor (rtx, int);
diff --git a/gcc-4.4.3/gcc/config/rs6000/rs6000.c b/gcc-4.4.3/gcc/config/rs6000/rs6000.c
index bac3ef385..9c52e8cf1 100644
--- a/gcc-4.4.3/gcc/config/rs6000/rs6000.c
+++ b/gcc-4.4.3/gcc/config/rs6000/rs6000.c
@@ -20838,6 +20838,10 @@ rs6000_elf_asm_init_sections (void)
   sdata2_section
     = get_unnamed_section (SECTION_WRITE, output_section_asm_op,
 			   SDATA2_SECTION_ASM_OP);
+
+#ifdef NO_CTORS_DTORS_SECTIONS
+  elf_initfini_array_init_sections ();
+#endif
 }
 
 /* Implement TARGET_SELECT_RTX_SECTION.  */
diff --git a/gcc-4.4.3/gcc/config/stormy16/stormy16.c b/gcc-4.4.3/gcc/config/stormy16/stormy16.c
index 343153d4a..4091d261b 100644
--- a/gcc-4.4.3/gcc/config/stormy16/stormy16.c
+++ b/gcc-4.4.3/gcc/config/stormy16/stormy16.c
@@ -1602,6 +1602,10 @@ xstormy16_asm_init_sections (void)
     = get_unnamed_section (SECTION_WRITE | SECTION_BSS,
 			   output_section_asm_op,
 			   "\t.section \".bss_below100\",\"aw\",@nobits");
+
+#ifdef NO_CTORS_DTORS_SECTIONS
+  elf_initfini_array_init_sections ();
+#endif
 }
 
 /* Mark symbols with the "below100" attribute so that we can use the
diff --git a/gcc-4.4.3/gcc/config/t-initfini-array b/gcc-4.4.3/gcc/config/t-initfini-array
new file mode 100644
index 000000000..af810c72d
--- /dev/null
+++ b/gcc-4.4.3/gcc/config/t-initfini-array
@@ -0,0 +1,23 @@
+# Copyright (C) 2010
+# 2009 Free Software Foundation, Inc.
+#
+# 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 3, 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 COPYING3.  If not see
+# <http://www.gnu.org/licenses/>.
+
+initfini-array.o: $(srcdir)/config/initfini-array.c gt-initfini-array.h \
+	$(CONFIG_H) $(SYSTEM_H) coretypes.h $(TARGET_H) output.h \
+	$(TREE_H) $(GGC_H)
+	$(CC) -c $(ALL_COMPILERFLAGS) $(ALL_CPPFLAGS) $(INCLUDES) $<
diff --git a/gcc-4.4.3/gcc/config/v850/v850.c b/gcc-4.4.3/gcc/config/v850/v850.c
index 51146e65d..944523b33 100644
--- a/gcc-4.4.3/gcc/config/v850/v850.c
+++ b/gcc-4.4.3/gcc/config/v850/v850.c
@@ -2889,6 +2889,10 @@ v850_asm_init_sections (void)
     = get_unnamed_section (SECTION_WRITE | SECTION_BSS,
 			   output_section_asm_op,
 			   "\t.section .zbss,\"aw\"");
+
+#ifdef NO_CTORS_DTORS_SECTIONS
+  elf_initfini_array_init_sections ();
+#endif
 }
 
 static section *