| diff -durN gcc-4.2.1.orig/gcc/stmt.c gcc-4.2.1/gcc/stmt.c |
| --- gcc-4.2.1.orig/gcc/stmt.c 2007-07-19 05:25:32.000000000 +0200 |
| +++ gcc-4.2.1/gcc/stmt.c 2007-08-03 20:37:19.000000000 +0200 |
| @@ -2512,7 +2512,11 @@ |
| use_cost_table |
| = (TREE_CODE (orig_type) != ENUMERAL_TYPE |
| && estimate_case_costs (case_list)); |
| - balance_case_nodes (&case_list, NULL); |
| + /* When optimizing for size, we want a straight list to avoid |
| + jumps as much as possible. This basically creates an if-else |
| + chain. */ |
| + if (!optimize_size) |
| + balance_case_nodes (&case_list, NULL); |
| emit_case_nodes (index, case_list, default_label, index_type); |
| emit_jump (default_label); |
| } |
| @@ -3070,6 +3074,7 @@ |
| { |
| if (!node_has_low_bound (node, index_type)) |
| { |
| + if (!optimize_size) /* don't jl to the .default_label. */ |
| emit_cmp_and_jump_insns (index, |
| convert_modes |
| (mode, imode, |
