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| author | dnovillo <dnovillo@138bc75d-0d04-0410-961f-82ee72b054a4> | 2005-11-23 18:05:38 +0000 |
|---|---|---|
| committer | dnovillo <dnovillo@138bc75d-0d04-0410-961f-82ee72b054a4> | 2005-11-23 18:05:38 +0000 |
| commit | ae6ad54a6d35963921b0ee1a4891e016244731bf (patch) | |
| tree | 6a2a80d1d6e49de77fef8a2fdd63ede5d9d62159 /gcc/passes.c | |
| parent | 482cc0ed3403f305424a5237f52049c5eb65b0d6 (diff) | |
| download | gcc-ae6ad54a6d35963921b0ee1a4891e016244731bf.tar.gz | |
* passes.c (init_optimization_passes): Document
sequencing of passes.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@107425 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/passes.c')
| -rw-r--r-- | gcc/passes.c | 25 |
1 files changed, 21 insertions, 4 deletions
diff --git a/gcc/passes.c b/gcc/passes.c index 0053f70dcce..7add1208069 100644 --- a/gcc/passes.c +++ b/gcc/passes.c @@ -420,7 +420,25 @@ next_pass_1 (struct tree_opt_pass **list, struct tree_opt_pass *pass) } -/* Construct the pass tree. */ +/* Construct the pass tree. The sequencing of passes is driven by + the cgraph routines: + + cgraph_finalize_compilation_unit () + for each node N in the cgraph + cgraph_analyze_function (N) + cgraph_lower_function (N) -> all_lowering_passes + + If we are optimizing, cgraph_optimize is then invoked: + + cgraph_optimize () + ipa_passes () -> all_ipa_passes + cgraph_expand_all_functions () + for each node N in the cgraph + cgraph_expand_function (N) + cgraph_lower_function (N) -> Now a NOP. + lang_hooks.callgraph.expand_function (DECL (N)) + tree_rest_of_compilation (DECL (N)) -> all_passes +*/ void init_optimization_passes (void) @@ -439,9 +457,8 @@ init_optimization_passes (void) NEXT_PASS (pass_ipa_type_escape); *p = NULL; - /* All passes needed to lower the function into shape optimizers can operate - on. These passes are performed before interprocedural passes, unlike rest - of local passes (all_passes). */ + /* All passes needed to lower the function into shape optimizers can + operate on. */ p = &all_lowering_passes; NEXT_PASS (pass_remove_useless_stmts); NEXT_PASS (pass_mudflap_1); |