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patches/gcc/4.4.4/190-flatten-switch-stmt-00.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Sat Jan 22 22:32:25 2011 +0100 (2011-01-22)
changeset 2268 1300e1714c13
parent 1948 d341be24dc68
permissions -rw-r--r--
libc/uClibc: move content of do_libc_headers into do_libc_start_files

It is unnecessary to split C library preparation into two steps, as only
one really makes sense. So, do_libc_headers is bound to be withdrawn
short-term, in favor of do_libc_start_files.

uClibc already had all its start files installation in do_libc_headers, and
do_libc_start_files was empty, just migrate the content of the former into
the latter.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr> 
     1 diff -durN gcc-4.4.4.orig/gcc/stmt.c gcc-4.4.4/gcc/stmt.c

     2 --- gcc-4.4.4.orig/gcc/stmt.c	2010-03-08 12:46:28.000000000 +0100

     3 +++ gcc-4.4.4/gcc/stmt.c	2010-05-16 19:12:31.000000000 +0200

     4 @@ -2377,7 +2377,11 @@

     5  	  use_cost_table

     6  	    = (TREE_CODE (orig_type) != ENUMERAL_TYPE

     7  	       && estimate_case_costs (case_list));

     8 -	  balance_case_nodes (&case_list, NULL);

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

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

    11 +	     chain.  */

    12 +	  if (!optimize_size)

    13 +	    balance_case_nodes (&case_list, NULL);

    14  	  emit_case_nodes (index, case_list, default_label, index_type);

    15  	  if (default_label)

    16  	    emit_jump (default_label);

    17 @@ -2943,6 +2947,7 @@

    18  	    {

    19  	      if (!node_has_low_bound (node, index_type))

    20  		{

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

    22  		  emit_cmp_and_jump_insns (index,

    23  					   convert_modes

    24  					   (mode, imode,
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