gcc: Support only the latest branch releases of gcc

This change, as per #222, reduces the number of supported releases of
gcc to the latest branch releases.

I noticed while doing this work that gcc-4.5.4 was never added, so I
moved patches for gcc-4.5.3 to 4.5.4 and updated the
bfin-unknown-linux-uclibc example. Also, 120-siginfo.patch was fixed
upstream in the 4.5.4 release, so this patch is omitted.

I also bumped the avr sample to 4.9.3 from 4.9.2.

With the addition of gcc-5.x, the gcc release team now releases the
major.minor.0 versions, while updates to the branch are available in
svn/git. We'll address that when we get to issue #219. This change just
removes CC_GCC_5_1 and moves CC_GCC_5_2 to CC_GCC_5, and removes
CC_GCC_5_1_or_later and moves CC_GCC_5_2_or_later to CC_GCC_5_or_later.

This is the first of two part changes, as mentioned in #222.
This change is slated for release in 1.22.0. The next change will be
slated for 1.23.0, and will limit gcc versions to what is on
https://gcc.gnu.org under "Release Series and Status", which is
currently 4.9.3 and 5.2.0, although I will also support the previous
supported version. In this example that would be 4.8.5.

Last, but not least, this change also retires AVR32 support.

Signed-off-by: Bryan Hundven <bryanhundven@gmail.com>

2 files changed, 0 insertions, 129 deletions

diff --git a/patches/gcc/4.7.3/000-libitm-fix-definition-of-__m64.patch b/patches/gcc/4.7.3/000-libitm-fix-definition-of-__m64.patch
deleted file mode 100644
index ade14a7..0000000
--- a/patches/gcc/4.7.3/000-libitm-fix-definition-of-__m64.patch
+++ /dev/null
@@ -1,27 +0,0 @@
-From 3d27d47fbebdb1be3d35e398a7c042a930f64aa6 Mon Sep 17 00:00:00 2001
-From: Richard Braun <rbraun@sceen.net>
-Date: Mon, 26 Nov 2012 11:36:17 +0100
-Subject: [PATCH] libitm: fix definition of __m64
-
-See http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52695 for details.
----
- libitm/config/x86/target.h |    3 +++
- 1 files changed, 3 insertions(+), 0 deletions(-)
-
-diff --git a/libitm/config/x86/target.h b/libitm/config/x86/target.h
-index 5c7e6fb..6254d8a 100644
---- a/libitm/config/x86/target.h
-+++ b/libitm/config/x86/target.h
-@@ -73,6 +73,9 @@ cpu_relax (void)
- /* ??? It's broken for C++. */
- #include <x86intrin.h>
- #else
-+# ifdef __MMX__
-+#  include <mmintrin.h>
-+# endif
- # ifdef __SSE2__
- #  include <emmintrin.h>
- # elif defined(__SSE__)
--- 
-1.7.2.5
-
diff --git a/patches/gcc/4.7.3/100-fix-PR-target-58595.patch b/patches/gcc/4.7.3/100-fix-PR-target-58595.patch
deleted file mode 100644
index 11b2d5d..0000000
--- a/patches/gcc/4.7.3/100-fix-PR-target-58595.patch
+++ /dev/null
@@ -1,102 +0,0 @@
-commit 4fa1f8926227d4e79975b674dc4292b9bec4b137
-Author: jakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4>
-Date:   Thu Mar 6 12:07:07 2014 +0000
-
-    	PR target/58595
-    	* config/arm/arm.c (arm_tls_symbol_p): Remove.
-    	(arm_legitimize_address): Call legitimize_tls_address for any
-    	arm_tls_referenced_p expression, handle constant addend.  Call it
-    	before testing for !TARGET_ARM.
-    	(thumb_legitimize_address): Don't handle arm_tls_symbol_p here.
-    
-    	* gcc.dg/tls/pr58595.c: New test.
-    
-    
-    git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@208380 138bc75d-0d04-0410-961f-82ee72b054a4
-
-diff --git a/gcc/config/arm/arm.c b/gcc/config/arm/arm.c
-index ce24bfe..af5666b 100644
---- a/gcc/config/arm/arm.c
-+++ b/gcc/config/arm/arm.c
-@@ -235,7 +235,6 @@ static tree arm_gimplify_va_arg_expr (tree, tree, gimple_seq *, gimple_seq *);
- static void arm_option_override (void);
- static unsigned HOST_WIDE_INT arm_shift_truncation_mask (enum machine_mode);
- static bool arm_cannot_copy_insn_p (rtx);
--static bool arm_tls_symbol_p (rtx x);
- static int arm_issue_rate (void);
- static void arm_output_dwarf_dtprel (FILE *, int, rtx) ATTRIBUTE_UNUSED;
- static bool arm_output_addr_const_extra (FILE *, rtx);
-@@ -7336,6 +7335,32 @@ legitimize_tls_address (rtx x, rtx reg)
- rtx
- arm_legitimize_address (rtx x, rtx orig_x, enum machine_mode mode)
- {
-+  if (arm_tls_referenced_p (x))
-+    {
-+      rtx addend = NULL;
-+
-+      if (GET_CODE (x) == CONST && GET_CODE (XEXP (x, 0)) == PLUS)
-+	{
-+	  addend = XEXP (XEXP (x, 0), 1);
-+	  x = XEXP (XEXP (x, 0), 0);
-+	}
-+
-+      if (GET_CODE (x) != SYMBOL_REF)
-+	return x;
-+
-+      gcc_assert (SYMBOL_REF_TLS_MODEL (x) != 0);
-+
-+      x = legitimize_tls_address (x, NULL_RTX);
-+
-+      if (addend)
-+	{
-+	  x = gen_rtx_PLUS (SImode, x, addend);
-+	  orig_x = x;
-+	}
-+      else
-+	return x;
-+    }
-+
-   if (!TARGET_ARM)
-     {
-       /* TODO: legitimize_address for Thumb2.  */
-@@ -7344,9 +7369,6 @@ arm_legitimize_address (rtx x, rtx orig_x, enum machine_mode mode)
-       return thumb_legitimize_address (x, orig_x, mode);
-     }
- 
--  if (arm_tls_symbol_p (x))
--    return legitimize_tls_address (x, NULL_RTX);
--
-   if (GET_CODE (x) == PLUS)
-     {
-       rtx xop0 = XEXP (x, 0);
-@@ -7459,9 +7481,6 @@ arm_legitimize_address (rtx x, rtx orig_x, enum machine_mode mode)
- rtx
- thumb_legitimize_address (rtx x, rtx orig_x, enum machine_mode mode)
- {
--  if (arm_tls_symbol_p (x))
--    return legitimize_tls_address (x, NULL_RTX);
--
-   if (GET_CODE (x) == PLUS
-       && GET_CODE (XEXP (x, 1)) == CONST_INT
-       && (INTVAL (XEXP (x, 1)) >= 32 * GET_MODE_SIZE (mode)
-@@ -7756,20 +7775,6 @@ thumb_legitimize_reload_address (rtx *x_p,
- 
- /* Test for various thread-local symbols.  */
- 
--/* Return TRUE if X is a thread-local symbol.  */
--
--static bool
--arm_tls_symbol_p (rtx x)
--{
--  if (! TARGET_HAVE_TLS)
--    return false;
--
--  if (GET_CODE (x) != SYMBOL_REF)
--    return false;
--
--  return SYMBOL_REF_TLS_MODEL (x) != 0;
--}
--
- /* Helper for arm_tls_referenced_p.  */
- 
- static int