patches/gcc/4.4.4/190-flatten-switch-stmt-00.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Mon Aug 23 23:18:49 2010 +0200 (2010-08-23)
changeset 2099 1bb063c8a0ca
child 2148 ada9128c98b8
permissions -rw-r--r--
complibs: noone is using companion libs on the target; nuke them

As there's no longer any user of the companion libraries on the
target, nuke the build for the target.

Well, at least, there's libelf that's still needed by ltrace, so
we keep it.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
     1 diff -durN gcc-4.4.0.orig/gcc/stmt.c gcc-4.4.0/gcc/stmt.c
     2 
     3 diff -durN gcc-4.4.4.orig/gcc/stmt.c gcc-4.4.4/gcc/stmt.c
     4 --- gcc-4.4.4.orig/gcc/stmt.c	2010-03-08 12:46:28.000000000 +0100
     5 +++ gcc-4.4.4/gcc/stmt.c	2010-05-16 19:12:31.000000000 +0200
     6 @@ -2377,7 +2377,11 @@
     7  	  use_cost_table
     8  	    = (TREE_CODE (orig_type) != ENUMERAL_TYPE
     9  	       && estimate_case_costs (case_list));
    10 -	  balance_case_nodes (&case_list, NULL);
    11 +	  /* When optimizing for size, we want a straight list to avoid
    12 +	     jumps as much as possible. This basically creates an if-else
    13 +	     chain.  */
    14 +	  if (!optimize_size)
    15 +	    balance_case_nodes (&case_list, NULL);
    16  	  emit_case_nodes (index, case_list, default_label, index_type);
    17  	  if (default_label)
    18  	    emit_jump (default_label);
    19 @@ -2943,6 +2947,7 @@
    20  	    {
    21  	      if (!node_has_low_bound (node, index_type))
    22  		{
    23 +		  if (!optimize_size) /* don't jl to the .default_label. */
    24  		  emit_cmp_and_jump_insns (index,
    25  					   convert_modes
    26  					   (mode, imode,