patches/gcc/4.2.2/260-flatten-switch-stmt-00.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Tue Jan 06 22:22:02 2009 +0000 (2009-01-06)
changeset 1130 78681fe5cdd1
parent 431 8bde4c6ea47a
permissions -rw-r--r--
Update all samples to the latest set of config options.
There might be some small issues here and there due to the split of CT_ExtractAndPatch.

/trunk/samples/x86_64-unknown-linux-gnu/crosstool.config | 14 11 3 0 ++++++++++---
/trunk/samples/sh4-unknown-linux-gnu/crosstool.config | 13 10 3 0 +++++++++---
/trunk/samples/armeb-unknown-linux-uclibc/crosstool.config | 10 7 3 0 ++++++---
/trunk/samples/arm-unknown-elf/crosstool.config | 8 4 4 0 +++---
/trunk/samples/arm-unknown-linux-gnueabi/crosstool.config | 14 11 3 0 ++++++++++---
/trunk/samples/armeb-unknown-eabi/crosstool.config | 8 4 4 0 +++---
/trunk/samples/ia64-unknown-linux-gnu/crosstool.config | 13 10 3 0 +++++++++---
/trunk/samples/x86_64-unknown-linux-uclibc/crosstool.config | 11 8 3 0 +++++++---
/trunk/samples/armeb-unknown-linux-gnueabi/crosstool.config | 14 11 3 0 ++++++++++---
/trunk/samples/powerpc-e500v2-linux-gnuspe/crosstool.config | 11 8 3 0 +++++++---
/trunk/samples/i686-nptl-linux-gnu/crosstool.config | 14 11 3 0 ++++++++++---
/trunk/samples/powerpc-unknown-linux-gnu/crosstool.config | 14 11 3 0 ++++++++++---
/trunk/samples/arm-unknown-linux-gnu/crosstool.config | 14 11 3 0 ++++++++++---
/trunk/samples/mips-unknown-linux-uclibc/crosstool.config | 10 7 3 0 ++++++---
/trunk/samples/arm-unknown-linux-uclibcgnueabi/crosstool.config | 11 8 3 0 +++++++---
/trunk/samples/arm-iphone-linux-gnueabi/crosstool.config | 5 2 3 0 ++---
/trunk/samples/armeb-unknown-linux-gnu/crosstool.config | 14 11 3 0 ++++++++++---
/trunk/samples/powerpc-unknown_nofpu-linux-gnu/crosstool.config | 14 11 3 0 ++++++++++---
/trunk/samples/powerpc-unknown-linux-uclibc/crosstool.config | 10 7 3 0 ++++++---
/trunk/samples/arm-unknown-linux-uclibc/crosstool.config | 11 8 3 0 +++++++---
/trunk/samples/i586-geode-linux-uclibc/crosstool.config | 11 8 3 0 +++++++---
/trunk/samples/powerpc-405-linux-gnu/crosstool.config | 14 11 3 0 ++++++++++---
/trunk/samples/mips-unknown-elf/crosstool.config | 8 4 4 0 +++---
/trunk/samples/armeb-unknown-linux-uclibcgnueabi/crosstool.config | 11 8 3 0 +++++++---
/trunk/samples/mipsel-unknown-linux-gnu/crosstool.config | 13 10 3 0 +++++++++---
/trunk/samples/arm-unknown-eabi/crosstool.config | 8 4 4 0 +++---
/trunk/samples/alphaev56-unknown-linux-gnu/crosstool.config | 14 11 3 0 ++++++++++---
/trunk/samples/powerpc-860-linux-gnu/crosstool.config | 13 10 3 0 +++++++++---
28 files changed, 237 insertions(+), 88 deletions(-)
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diff -durN gcc-4.2.1.orig/gcc/stmt.c gcc-4.2.1/gcc/stmt.c
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--- gcc-4.2.1.orig/gcc/stmt.c	2007-07-19 05:25:32.000000000 +0200
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+++ gcc-4.2.1/gcc/stmt.c	2007-08-03 20:37:19.000000000 +0200
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@@ -2512,7 +2512,11 @@
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 	  use_cost_table
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 	    = (TREE_CODE (orig_type) != ENUMERAL_TYPE
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 	       && estimate_case_costs (case_list));
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-	  balance_case_nodes (&case_list, NULL);
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+	  /* When optimizing for size, we want a straight list to avoid
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+	     jumps as much as possible. This basically creates an if-else
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+	     chain.  */
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+	  if (!optimize_size)
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+	    balance_case_nodes (&case_list, NULL);
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 	  emit_case_nodes (index, case_list, default_label, index_type);
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 	  emit_jump (default_label);
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 	}
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@@ -3070,6 +3074,7 @@
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 	    {
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 	      if (!node_has_low_bound (node, index_type))
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 		{
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+		  if (!optimize_size) /* don't jl to the .default_label. */
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 		  emit_cmp_and_jump_insns (index,
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 					   convert_modes
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 					   (mode, imode,