patches/gcc/4.2.2/260-flatten-switch-stmt-00.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Thu Oct 23 13:45:48 2008 +0000 (2008-10-23)
changeset 965 45ddf096def1
parent 431 8bde4c6ea47a
permissions -rw-r--r--
Push the calculation of the tuple's kernel part down to kernel's build scripts:
- update the kernel script's API with the function CT_DiKernelTupleValues
- update doc accordingly (also with the architecture change, missing in the previous commit)
- small clean-up in the main script, remove useless test

/trunk/scripts/build/kernel/bare-metal.sh | 5 5 0 0 +++++
/trunk/scripts/build/kernel/linux.sh | 5 5 0 0 +++++
/trunk/scripts/crosstool.sh | 31 13 18 0 +++++++++++++------------------
/trunk/scripts/functions | 15 8 7 0 ++++++++-------
/trunk/docs/overview.txt | 13 9 4 0 +++++++++----
5 files changed, 40 insertions(+), 29 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,