diff options
Diffstat (limited to 'patches/gcc/4.4.7/190-flatten-switch-stmt-00.patch')
| -rw-r--r-- | patches/gcc/4.4.7/190-flatten-switch-stmt-00.patch | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/patches/gcc/4.4.7/190-flatten-switch-stmt-00.patch b/patches/gcc/4.4.7/190-flatten-switch-stmt-00.patch new file mode 100644 index 00000000..d4d68fe4 --- /dev/null +++ b/patches/gcc/4.4.7/190-flatten-switch-stmt-00.patch @@ -0,0 +1,24 @@ +diff -durN gcc-4.4.5.orig/gcc/stmt.c gcc-4.4.5/gcc/stmt.c +--- gcc-4.4.5.orig/gcc/stmt.c 2010-03-08 12:46:28.000000000 +0100 ++++ gcc-4.4.5/gcc/stmt.c 2010-10-09 23:01:01.000000000 +0200 +@@ -2377,7 +2377,11 @@ + 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); + if (default_label) + emit_jump (default_label); +@@ -2943,6 +2947,7 @@ + { + 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, |