patches/gcc/4.2.1/904-flatten-switch-stmt-00.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Sat Jul 26 09:31:07 2008 +0000 (2008-07-26)
changeset 727 33c246763c8a
permissions -rw-r--r--
Update the PPC sample, add a new softfloat PPC sample, thanks to Thomas JOURDAN.

/trunk/samples/powerpc-unknown-linux-gnu/crosstool.config | 54 42 12 0 ++
/trunk/samples/powerpc-unknown_nofpu-linux-gnu/crosstool.config | 331 331 0 0 +++++++++++++++
/trunk/samples/powerpc-unknown_nofpu-linux-gnu/reported.by | 2 2 0 0 +
3 files changed, 375 insertions(+), 12 deletions(-)
     1 diff -durN gcc-4.2.1.orig/gcc/stmt.c gcc-4.2.1/gcc/stmt.c
     2 --- gcc-4.2.1.orig/gcc/stmt.c	2007-07-19 05:25:32.000000000 +0200
     3 +++ gcc-4.2.1/gcc/stmt.c	2007-08-03 20:37:19.000000000 +0200
     4 @@ -2512,7 +2512,11 @@
     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  	  emit_jump (default_label);
    16  	}
    17 @@ -3070,6 +3074,7 @@
    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,