diff options
Diffstat (limited to 'gcc/tree-inline.c')
| -rw-r--r-- | gcc/tree-inline.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/gcc/tree-inline.c b/gcc/tree-inline.c index c0f4c88..9d827ff 100644 --- a/gcc/tree-inline.c +++ b/gcc/tree-inline.c @@ -3683,3 +3683,34 @@ build_duplicate_type (tree type) return type; } + +/* Return whether it is safe to inline a function because it used different + target specific options or different optimization options. */ +bool +tree_can_inline_p (tree caller, tree callee) +{ + /* Don't inline a function with a higher optimization level than the + caller, or with different space constraints (hot/cold functions). */ + tree caller_tree = DECL_FUNCTION_SPECIFIC_OPTIMIZATION (caller); + tree callee_tree = DECL_FUNCTION_SPECIFIC_OPTIMIZATION (callee); + + if (caller_tree != callee_tree) + { + struct cl_optimization *caller_opt + = TREE_OPTIMIZATION ((caller_tree) + ? caller_tree + : optimization_default_node); + + struct cl_optimization *callee_opt + = TREE_OPTIMIZATION ((callee_tree) + ? callee_tree + : optimization_default_node); + + if ((caller_opt->optimize > callee_opt->optimize) + || (caller_opt->optimize_size != callee_opt->optimize_size)) + return false; + } + + /* Allow the backend to decide if inlining is ok. */ + return targetm.target_option.can_inline_p (caller, callee); +} |