patches/gcc/4.2.2/904-flatten-switch-stmt-00.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Mon Jun 30 21:41:32 2008 +0000 (2008-06-30)
changeset 636 92f2e82084cd
parent 313 2f223aafc7cb
permissions -rw-r--r--
Update samples to the latest architecture framework.

/trunk/samples/armeb-unknown-linux-uclibc/crosstool.config | 57 32 25 0 +++++++-----
/trunk/samples/arm-unknown-linux-gnueabi/crosstool.config | 60 34 26 0 +++++++------
/trunk/samples/mips-unknown-linux-uclibc/crosstool.config | 43 23 20 0 +++++----
/trunk/samples/arm-unknown-linux-uclibcgnueabi/crosstool.config | 57 32 25 0 +++++++-----
/trunk/samples/ia64-unknown-linux-gnu/crosstool.config | 46 26 20 0 ++++++----
/trunk/samples/armeb-unknown-linux-gnu/crosstool.config | 56 30 26 0 ++++++------
/trunk/samples/x86_64-unknown-linux-uclibc/crosstool.config | 43 23 20 0 +++++----
/trunk/samples/arm-unknown-linux-uclibc/crosstool.config | 53 27 26 0 ++++++-----
/trunk/samples/i586-geode-linux-uclibc/crosstool.config | 43 23 20 0 +++++----
/trunk/samples/powerpc-unknown-linux-uclibc/crosstool.config | 49 29 20 0 ++++++-----
/trunk/samples/armeb-unknown-linux-uclibcgnueabi/crosstool.config | 51 26 25 0 ++++++-----
/trunk/samples/i686-nptl-linux-gnu/crosstool.config | 43 23 20 0 +++++----
/trunk/samples/alphaev56-unknown-linux-gnu/crosstool.config | 44 21 23 0 ++++------
13 files changed, 349 insertions(+), 296 deletions(-)
yann@313
     1
diff -durN gcc-4.2.1.orig/gcc/stmt.c gcc-4.2.1/gcc/stmt.c
yann@313
     2
--- gcc-4.2.1.orig/gcc/stmt.c	2007-07-19 05:25:32.000000000 +0200
yann@313
     3
+++ gcc-4.2.1/gcc/stmt.c	2007-08-03 20:37:19.000000000 +0200
yann@313
     4
@@ -2512,7 +2512,11 @@
yann@313
     5
 	  use_cost_table
yann@313
     6
 	    = (TREE_CODE (orig_type) != ENUMERAL_TYPE
yann@313
     7
 	       && estimate_case_costs (case_list));
yann@313
     8
-	  balance_case_nodes (&case_list, NULL);
yann@313
     9
+	  /* When optimizing for size, we want a straight list to avoid
yann@313
    10
+	     jumps as much as possible. This basically creates an if-else
yann@313
    11
+	     chain.  */
yann@313
    12
+	  if (!optimize_size)
yann@313
    13
+	    balance_case_nodes (&case_list, NULL);
yann@313
    14
 	  emit_case_nodes (index, case_list, default_label, index_type);
yann@313
    15
 	  emit_jump (default_label);
yann@313
    16
 	}
yann@313
    17
@@ -3070,6 +3074,7 @@
yann@313
    18
 	    {
yann@313
    19
 	      if (!node_has_low_bound (node, index_type))
yann@313
    20
 		{
yann@313
    21
+		  if (!optimize_size) /* don't jl to the .default_label. */
yann@313
    22
 		  emit_cmp_and_jump_insns (index,
yann@313
    23
 					   convert_modes
yann@313
    24
 					   (mode, imode,