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| author | rguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4> | 2008-06-28 13:17:20 +0000 |
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| committer | rguenth <rguenth@138bc75d-0d04-0410-961f-82ee72b054a4> | 2008-06-28 13:17:20 +0000 |
| commit | 9f41ce98ce6f4f7c8ac5e2c4b6e5d27e10201015 (patch) | |
| tree | c154f74717a3c268c9eb1d50886dc65b0a3c38db /gcc/tree-ssa.c | |
| parent | 1c73f824d906e8f987c583782b0cd8a254b1579c (diff) | |
| download | ppe42-gcc-9f41ce98ce6f4f7c8ac5e2c4b6e5d27e10201015.tar.gz ppe42-gcc-9f41ce98ce6f4f7c8ac5e2c4b6e5d27e10201015.zip | |
2008-06-28 Richard Guenther <rguenther@suse.de>
* tree-ssa-structalias.c (callused_id, var_callused,
callused_tree): Add.
(handle_pure_call): New function.
(find_func_aliases): Call it.
(find_what_p_points_to): Handle the call-used set.
(clobber_what_escaped): Likewise.
(compute_call_used_vars): New function.
(init_base_vars): Init the call-used variable.
(do_sd_constraint): Do not propagate the solution from CALLUSED
but use CALLUSED as a placeholder.
(solve_graph): Likewise.
* tree-flow-inline.h (gimple_call_used_vars): New function.
* tree-flow.h (struct gimple_df): Add call_used_vars bitmap.
(compute_call_used_vars): Declare.
* tree-ssa-alias.c (set_initial_properties): Call
compute_call_used_vars.
(reset_alias_info): Clear call-used variables.
(add_call_clobber_ops): Assert we are not called for const/pure
functions. Remove handling of them.
(add_call_read_ops): Handle pure functions by adding the
call-used set of variables as VUSEs.
* tree-ssa.c (init_tree_ssa): Allocate call-used bitmap.
(delete_tree_ssa): Free it.
* tree-dfa.c (remove_referenced_var): Clear the var from the
call-used bitmap.
* gcc.dg/tree-ssa/pr24287.c: Remove XFAIL.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@137222 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/tree-ssa.c')
| -rw-r--r-- | gcc/tree-ssa.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/gcc/tree-ssa.c b/gcc/tree-ssa.c index 5a744648271..7f567b57a2e 100644 --- a/gcc/tree-ssa.c +++ b/gcc/tree-ssa.c @@ -937,6 +937,7 @@ init_tree_ssa (struct function *fn) fn->gimple_df->default_defs = htab_create_ggc (20, uid_ssaname_map_hash, uid_ssaname_map_eq, NULL); fn->gimple_df->call_clobbered_vars = BITMAP_GGC_ALLOC (); + fn->gimple_df->call_used_vars = BITMAP_GGC_ALLOC (); fn->gimple_df->addressable_vars = BITMAP_GGC_ALLOC (); init_ssanames (fn, 0); init_phinodes (); @@ -1009,6 +1010,7 @@ delete_tree_ssa (void) htab_delete (cfun->gimple_df->default_defs); cfun->gimple_df->default_defs = NULL; cfun->gimple_df->call_clobbered_vars = NULL; + cfun->gimple_df->call_used_vars = NULL; cfun->gimple_df->addressable_vars = NULL; cfun->gimple_df->modified_noreturn_calls = NULL; if (gimple_aliases_computed_p (cfun)) |
