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| author | Martin Liska <mliska@suse.cz> | 2015-11-04 17:50:45 +0100 |
|---|---|---|
| committer | Martin Liska <marxin@gcc.gnu.org> | 2015-11-04 16:50:45 +0000 |
| commit | be373510f80fc6fc1e7b227056a69b703ce1c7a4 (patch) | |
| tree | 316a2296cdfe0b08198dd411e536b7787022ff04 /gcc/passes.c | |
| parent | a6c764d02ec7716720ceac34b667cda3741c5c42 (diff) | |
| download | gcc-be373510f80fc6fc1e7b227056a69b703ce1c7a4.zip gcc-be373510f80fc6fc1e7b227056a69b703ce1c7a4.tar.gz gcc-be373510f80fc6fc1e7b227056a69b703ce1c7a4.tar.bz2 | |
Pass manager: add support for termination of pass list
* cgraphunit.c (cgraph_node::expand_thunk): Call
allocate_struct_function before init_function_start.
(cgraph_node::expand): Use push_cfun and pop_cfun.
* config/i386/i386.c (ix86_code_end): Call
allocate_struct_function before init_function_start.
* config/rs6000/rs6000.c (rs6000_code_end): Likewise.
* function.c (init_function_start): Move preamble to all
callers.
* passes.c (do_per_function_toporder): Use push_cfun and pop_cfun.
(execute_one_pass): Handle newly added TODO_discard_function.
(execute_pass_list_1): Terminate if cfun equals to NULL.
(execute_pass_list): Do not push and pop cfun, expect that
cfun is set.
* tree-pass.h (TODO_discard_function): Define.
From-SVN: r229764
Diffstat (limited to 'gcc/passes.c')
| -rw-r--r-- | gcc/passes.c | 32 |
1 files changed, 28 insertions, 4 deletions
diff --git a/gcc/passes.c b/gcc/passes.c index f87dcf4..7a10cb6 100644 --- a/gcc/passes.c +++ b/gcc/passes.c @@ -1706,7 +1706,12 @@ do_per_function_toporder (void (*callback) (function *, void *data), void *data) order[i] = NULL; node->process = 0; if (node->has_gimple_body_p ()) - callback (DECL_STRUCT_FUNCTION (node->decl), data); + { + struct function *fn = DECL_STRUCT_FUNCTION (node->decl); + push_cfun (fn); + callback (fn, data); + pop_cfun (); + } } symtab->remove_cgraph_removal_hook (hook); } @@ -2347,6 +2352,23 @@ execute_one_pass (opt_pass *pass) current_pass = NULL; + if (todo_after & TODO_discard_function) + { + gcc_assert (cfun); + /* As cgraph_node::release_body expects release dominators info, + we have to release it. */ + if (dom_info_available_p (CDI_DOMINATORS)) + free_dominance_info (CDI_DOMINATORS); + + if (dom_info_available_p (CDI_POST_DOMINATORS)) + free_dominance_info (CDI_POST_DOMINATORS); + + tree fn = cfun->decl; + pop_cfun (); + gcc_assert (!cfun); + cgraph_node::get (fn)->release_body (); + } + /* Signal this is a suitable GC collection point. */ if (!((todo_after | pass->todo_flags_finish) & TODO_do_not_ggc_collect)) ggc_collect (); @@ -2361,6 +2383,9 @@ execute_pass_list_1 (opt_pass *pass) { gcc_assert (pass->type == GIMPLE_PASS || pass->type == RTL_PASS); + + if (cfun == NULL) + return; if (execute_one_pass (pass) && pass->sub) execute_pass_list_1 (pass->sub); pass = pass->next; @@ -2371,14 +2396,13 @@ execute_pass_list_1 (opt_pass *pass) void execute_pass_list (function *fn, opt_pass *pass) { - push_cfun (fn); + gcc_assert (fn == cfun); execute_pass_list_1 (pass); - if (fn->cfg) + if (cfun && fn->cfg) { free_dominance_info (CDI_DOMINATORS); free_dominance_info (CDI_POST_DOMINATORS); } - pop_cfun (); } /* Write out all LTO data. */ |