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| author | Richard Guenther <rguenther@suse.de> | 2008-06-28 13:17:20 +0000 |
|---|---|---|
| committer | Richard Biener <rguenth@gcc.gnu.org> | 2008-06-28 13:17:20 +0000 |
| commit | 15c151967dd1cde61b79d26374f608f63a29d411 (patch) | |
| tree | c154f74717a3c268c9eb1d50886dc65b0a3c38db /gcc/tree-flow-inline.h | |
| parent | ff1c393bd32f3b018957ba9f552e344ab040f309 (diff) | |
| download | gcc-15c151967dd1cde61b79d26374f608f63a29d411.zip gcc-15c151967dd1cde61b79d26374f608f63a29d411.tar.gz gcc-15c151967dd1cde61b79d26374f608f63a29d411.tar.bz2 | |
tree-ssa-structalias.c (callused_id, [...]): Add.
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.
From-SVN: r137222
Diffstat (limited to 'gcc/tree-flow-inline.h')
| -rw-r--r-- | gcc/tree-flow-inline.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/gcc/tree-flow-inline.h b/gcc/tree-flow-inline.h index c84964c..bff697d 100644 --- a/gcc/tree-flow-inline.h +++ b/gcc/tree-flow-inline.h @@ -66,6 +66,15 @@ gimple_call_clobbered_vars (const struct function *fun) return fun->gimple_df->call_clobbered_vars; } +/* Call-used variables in the function. If bit I is set, then + REFERENCED_VARS (I) is call-used at pure function call-sites. */ +static inline bitmap +gimple_call_used_vars (const struct function *fun) +{ + gcc_assert (fun && fun->gimple_df); + return fun->gimple_df->call_used_vars; +} + /* Array of all variables referenced in the function. */ static inline htab_t gimple_referenced_vars (const struct function *fun) |