Introduce the notion of a 'sample comment'.

- presence of the sample's reported.by file is now mandatory.
- when saving a sample, reporter name & URL are queried, to avoid operator forget about creating the reported.by file.
- when saving a sample, one can store a few-liner comment.
- when recalling a sample, the reporter name, URL and comment (if present) are printed.
- update the powerpc-e500v2-linux-gnuspe sample to include Nate's comment (from his original mail).
- update all samples that were missing the reported.by file.

/trunk/scripts/saveSample.sh | 46 35 11 0 ++++++++++++++++++------
/trunk/scripts/showSamples.sh | 12 6 6 0 +++---
/trunk/samples/powerpc-e500v2-linux-gnuspe/reported.by | 15 15 0 0 ++++++++
/trunk/samples/samples.mk | 22 17 5 0 +++++++++--
4 files changed, 73 insertions(+), 22 deletions(-)

diff -durN gcc-4.2.1.orig/gcc/stmt.c gcc-4.2.1/gcc/stmt.c

--- gcc-4.2.1.orig/gcc/stmt.c	2007-07-19 05:25:32.000000000 +0200

+++ gcc-4.2.1/gcc/stmt.c	2007-08-03 20:37:19.000000000 +0200

@@ -2512,7 +2512,11 @@

 	  use_cost_table

 	    = (TREE_CODE (orig_type) != ENUMERAL_TYPE

 	       && estimate_case_costs (case_list));

-	  balance_case_nodes (&case_list, NULL);

+	  /* When optimizing for size, we want a straight list to avoid

+	     jumps as much as possible. This basically creates an if-else

+	     chain.  */

+	  if (!optimize_size)

+	    balance_case_nodes (&case_list, NULL);

 	  emit_case_nodes (index, case_list, default_label, index_type);

 	  emit_jump (default_label);

 	}

@@ -3070,6 +3074,7 @@

 	    {

 	      if (!node_has_low_bound (node, index_type))

 		{

+		  if (!optimize_size) /* don't jl to the .default_label. */

 		  emit_cmp_and_jump_insns (index,

 					   convert_modes

 					   (mode, imode,