patches/gcc/4.2.1/260-flatten-switch-stmt-00.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Mon Jul 28 21:59:40 2008 +0000 (2008-07-28)
changeset 748 61cd4eb6034d
parent 313 2f223aafc7cb
permissions -rw-r--r--
New patches to make glibc 2.6 and 2.6.1 build for Alpha.
Forwarded by Ioannis E. VENETIS.

/trunk/patches/glibc/2.6.1/200-alpha-ptr_mangle.patch | 103 103 0 0 ++++++++
/trunk/patches/glibc/2.6.1/190-alpha-atfcts.patch | 11 11 0 0 +
/trunk/patches/glibc/2.6.1/180-gcc-4.3-sysinclude-path.patch | 50 50 0 0 ++++
/trunk/patches/glibc/2.6.1/210-lll_lock_t.patch | 237 237 0 0 ++++++++++++++++++
/trunk/patches/glibc/2.6/200-alpha-ptr_mangle.patch | 103 103 0 0 ++++++++
/trunk/patches/glibc/2.6/190-alpha-atfcts.patch | 11 11 0 0 +
/trunk/patches/glibc/2.6/180-gcc-4.3-sysinclude-path.patch | 50 50 0 0 ++++
/trunk/patches/glibc/2.6/210-lll_lock_t.patch | 237 237 0 0 ++++++++++++++++++
/trunk/patches/glibc/ports-2.6.1/120-lll_lock_t.patch | 156 156 0 0 ++++++++++++
9 files changed, 958 insertions(+)
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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,