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>

1 files changed, 0 insertions, 68 deletions

diff --git a/patches/gcc/3.4.6/140-arm-ldm-peephole.patch b/patches/gcc/3.4.6/140-arm-ldm-peephole.patch
deleted file mode 100644
index 81a0ac8..0000000
--- a/patches/gcc/3.4.6/140-arm-ldm-peephole.patch
+++ /dev/null
@@ -1,68 +0,0 @@
-diff -durN gcc-3.4.6.orig/gcc/config/arm/arm.c gcc-3.4.6/gcc/config/arm/arm.c
---- gcc-3.4.6.orig/gcc/config/arm/arm.c	2005-10-01 15:31:38.000000000 +0200
-+++ gcc-3.4.6/gcc/config/arm/arm.c	2007-08-15 22:54:59.000000000 +0200
-@@ -4857,6 +4857,11 @@
-       *load_offset = unsorted_offsets[order[0]];
-     }
- 
-+  /* For XScale a two-word LDM is a performance loss, so only do this if
-+     size is more important.  See comments in arm_gen_load_multiple.  */
-+  if (nops == 2 && arm_tune_xscale && !optimize_size)
-+    return 0;
-+
-   if (unsorted_offsets[order[0]] == 0)
-     return 1; /* ldmia */
- 
-@@ -5083,6 +5088,11 @@
-       *load_offset = unsorted_offsets[order[0]];
-     }
- 
-+  /* For XScale a two-word LDM is a performance loss, so only do this if
-+     size is more important.  See comments in arm_gen_load_multiple.  */
-+  if (nops == 2 && arm_tune_xscale && !optimize_size)
-+    return 0;
-+
-   if (unsorted_offsets[order[0]] == 0)
-     return 1; /* stmia */
- 
-diff -durN gcc-3.4.6.orig/gcc/config/arm/arm.md gcc-3.4.6/gcc/config/arm/arm.md
---- gcc-3.4.6.orig/gcc/config/arm/arm.md	2005-10-01 15:31:38.000000000 +0200
-+++ gcc-3.4.6/gcc/config/arm/arm.md	2007-08-15 22:54:59.000000000 +0200
-@@ -8811,13 +8811,16 @@
-    (set_attr "length" "4,8,8")]
- )
- 
-+; Try to convert LDR+LDR+arith into [add+]LDM+arith
-+; On XScale, LDM is always slower than two LDRs, so only do this if
-+; optimising for size.
- (define_insn "*arith_adjacentmem"
-   [(set (match_operand:SI 0 "s_register_operand" "=r")
- 	(match_operator:SI 1 "shiftable_operator"
- 	 [(match_operand:SI 2 "memory_operand" "m")
- 	  (match_operand:SI 3 "memory_operand" "m")]))
-    (clobber (match_scratch:SI 4 "=r"))]
--  "TARGET_ARM && adjacent_mem_locations (operands[2], operands[3])"
-+  "TARGET_ARM && (!arm_tune_xscale || optimize_size) && adjacent_mem_locations (operands[2], operands[3])"
-   "*
-   {
-     rtx ldm[3];
-@@ -8852,6 +8855,8 @@
-       }
-    if (val1 && val2)
-       {
-+	/* This would be a loss on a Harvard core, but adjacent_mem_locations()
-+	   will prevent it from happening.  */
- 	rtx ops[3];
- 	ldm[0] = ops[0] = operands[4];
- 	ops[1] = XEXP (XEXP (operands[2], 0), 0);
-diff -durN gcc-3.4.6.orig/gcc/genpeep.c gcc-3.4.6/gcc/genpeep.c
---- gcc-3.4.6.orig/gcc/genpeep.c	2003-07-05 07:27:22.000000000 +0200
-+++ gcc-3.4.6/gcc/genpeep.c	2007-08-15 22:54:59.000000000 +0200
-@@ -381,6 +381,7 @@
-   printf ("#include \"recog.h\"\n");
-   printf ("#include \"except.h\"\n\n");
-   printf ("#include \"function.h\"\n\n");
-+  printf ("#include \"flags.h\"\n\n");
- 
-   printf ("#ifdef HAVE_peephole\n");
-   printf ("extern rtx peep_operand[];\n\n");