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re PR middle-end/64922 (runtime error: member call on misaligned address for type 'struct _Rep') 

PR middle-end/64922
	* gimple.c: Include gimple-ssa.h.
	(maybe_remove_unused_call_args): New function.
	* gimple.h (maybe_remove_unused_call_args): Declare.
	* cgraph.c (cgraph_edge::redirect_call_stmt_to_callee): Use it.
	* tree-ssa-pre.c (eliminate_dom_walker::before_dom_children): Likewise.
	* gimple-fold.c (gimple_fold_call): Likewise.

From-SVN: r220417
This commit is contained in:
Jan Hubicka 2015-02-04 21:28:49 +01:00 committed by Jan Hubicka
parent d303ff9764
commit 0b986c6ac7
6 changed files with 36 additions and 1 deletions
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10
gcc/ChangeLog
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@ -1,3 +1,13 @@
2015-02-04 Jan Hubicka <hubicka@ucw.cz>
PR middle-end/64922
* gimple.c: Include gimple-ssa.h.
(maybe_remove_unused_call_args): New function.
* gimple.h (maybe_remove_unused_call_args): Declare.
* cgraph.c (cgraph_edge::redirect_call_stmt_to_callee): Use it.
* tree-ssa-pre.c (eliminate_dom_walker::before_dom_children): Likewise.
* gimple-fold.c (gimple_fold_call): Likewise.
2015-02-04 H.J. Lu <hongjiu.lu@intel.com>
PR rtl-optimization/64905

6
gcc/cgraph.c
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@ -1324,7 +1324,8 @@ cgraph_edge::redirect_call_stmt_to_callee (void)
(int64_t)e->count);
gcc_assert (e2->speculative);
push_cfun (DECL_STRUCT_FUNCTION (e->caller->decl));
new_stmt = gimple_ic (e->call_stmt, dyn_cast<cgraph_node *> (ref->referred),
new_stmt = gimple_ic (e->call_stmt,
dyn_cast<cgraph_node *> (ref->referred),
e->count || e2->count
? RDIV (e->count * REG_BR_PROB_BASE,
e->count + e2->count)
@ -1464,6 +1465,9 @@ cgraph_edge::redirect_call_stmt_to_callee (void)
update_stmt_fn (DECL_STRUCT_FUNCTION (e->caller->decl), new_stmt);
}
maybe_remove_unused_call_args (DECL_STRUCT_FUNCTION (e->caller->decl),
new_stmt);
e->caller->set_call_stmt_including_clones (e->call_stmt, new_stmt, false);
if (symtab->dump_file)

1
gcc/gimple-fold.c
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@ -3120,6 +3120,7 @@ gimple_fold_call (gimple_stmt_iterator *gsi, bool inplace)
}
gimple_call_set_lhs (stmt, NULL_TREE);
}
maybe_remove_unused_call_args (cfun, stmt);
}
else
{

18
gcc/gimple.c
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@ -67,6 +67,7 @@ along with GCC; see the file COPYING3. If not see
#include "ipa-ref.h"
#include "lto-streamer.h"
#include "cgraph.h"
#include "gimple-ssa.h"
/* All the tuples have their operand vector (if present) at the very bottom
@ -2950,3 +2951,20 @@ gimple_seq_discard (gimple_seq seq)
ggc_free (stmt);
}
}
/* See if STMT now calls function that takes no parameters and if so, drop
call arguments. This is used when devirtualization machinery redirects
to __builtiln_unreacahble or __cxa_pure_virutal. */
void
maybe_remove_unused_call_args (struct function *fn, gimple stmt)
{
tree decl = gimple_call_fndecl (stmt);
if (TYPE_ARG_TYPES (TREE_TYPE (decl))
&& TREE_VALUE (TYPE_ARG_TYPES (TREE_TYPE (decl))) == void_type_node
&& gimple_call_num_args (stmt))
{
gimple_set_num_ops (stmt, 3);
update_stmt_fn (fn, stmt);
}
}

1
gcc/gimple.h
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@ -1404,6 +1404,7 @@ extern void sort_case_labels (vec<tree>);
extern void preprocess_case_label_vec_for_gimple (vec<tree>, tree, tree *);
extern void gimple_seq_set_location (gimple_seq, location_t);
extern void gimple_seq_discard (gimple_seq);
extern void maybe_remove_unused_call_args (struct function *, gimple);
/* Formal (expression) temporary table handling: multiple occurrences of
the same scalar expression are evaluated into the same temporary. */

1
gcc/tree-ssa-pre.c
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@ -4406,6 +4406,7 @@ eliminate_dom_walker::before_dom_children (basic_block b)
cgraph_node::get (fn)->name ());
}
gimple_call_set_fndecl (call_stmt, fn);
maybe_remove_unused_call_args (cfun, call_stmt);
gimple_set_modified (stmt, true);
}
}