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tree-ssa-live.c (remove_unused_locals): Mark all edge's goto_block as used.

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* tree-ssa-live.c (remove_unused_locals): Mark all edge's goto_block
	as used.
	* gimple-low.c (lower_function_body, lower_gimple_return,
	lower_builtin_setjmp): Set gimple_block on the newly created stmts.
	* tree-cfg.c (make_cond_expr_edges, make_goto_expr_edges): Only set
	goto_block on edges if goto_locus is known.

From-SVN: r141002
This commit is contained in:
Jakub Jelinek 2008-10-09 10:14:45 +02:00 committed by Jakub Jelinek
parent a3d3c0f5fa
commit cc2a64dd80
4 changed files with 27 additions and 3 deletions
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9
gcc/ChangeLog
View File

@ -1,3 +1,12 @@
2008-10-09 Jakub Jelinek <jakub@redhat.com>
* tree-ssa-live.c (remove_unused_locals): Mark all edge's goto_block
as used.
* gimple-low.c (lower_function_body, lower_gimple_return,
lower_builtin_setjmp): Set gimple_block on the newly created stmts.
* tree-cfg.c (make_cond_expr_edges, make_goto_expr_edges): Only set
goto_block on edges if goto_locus is known.
2008-10-08 Jakub Jelinek <jakub@redhat.com>
* graphite.c (gloog): Don't call find_unreachable_blocks

6
gcc/gimple-low.c
View File

@ -133,6 +133,7 @@ lower_function_body (void)
{
x = gimple_build_return (NULL);
gimple_set_location (x, cfun->function_end_locus);
gimple_set_block (x, DECL_INITIAL (current_function_decl));
gsi_insert_after (&i, x, GSI_CONTINUE_LINKING);
}
@ -659,6 +660,7 @@ lower_gimple_return (gimple_stmt_iterator *gsi, struct lower_data *data)
found:
t = gimple_build_goto (tmp_rs.label);
gimple_set_location (t, gimple_location (stmt));
gimple_set_block (t, gimple_block (stmt));
gsi_insert_before (gsi, t, GSI_SAME_STMT);
gsi_remove (gsi, false);
}
@ -736,6 +738,7 @@ lower_builtin_setjmp (gimple_stmt_iterator *gsi)
t = implicit_built_in_decls[BUILT_IN_SETJMP_SETUP];
g = gimple_build_call (t, 2, gimple_call_arg (stmt, 0), arg);
gimple_set_location (g, gimple_location (stmt));
gimple_set_block (g, gimple_block (stmt));
gsi_insert_before (gsi, g, GSI_SAME_STMT);
/* Build 'DEST = 0' and insert. */
@ -744,6 +747,7 @@ lower_builtin_setjmp (gimple_stmt_iterator *gsi)
g = gimple_build_assign (dest, fold_convert (TREE_TYPE (dest),
integer_zero_node));
gimple_set_location (g, gimple_location (stmt));
gimple_set_block (g, gimple_block (stmt));
gsi_insert_before (gsi, g, GSI_SAME_STMT);
}
@ -760,6 +764,7 @@ lower_builtin_setjmp (gimple_stmt_iterator *gsi)
t = implicit_built_in_decls[BUILT_IN_SETJMP_RECEIVER];
g = gimple_build_call (t, 1, arg);
gimple_set_location (g, gimple_location (stmt));
gimple_set_block (g, gimple_block (stmt));
gsi_insert_before (gsi, g, GSI_SAME_STMT);
/* Build 'DEST = 1' and insert. */
@ -768,6 +773,7 @@ lower_builtin_setjmp (gimple_stmt_iterator *gsi)
g = gimple_build_assign (dest, fold_convert (TREE_TYPE (dest),
integer_one_node));
gimple_set_location (g, gimple_location (stmt));
gimple_set_block (g, gimple_block (stmt));
gsi_insert_before (gsi, g, GSI_SAME_STMT);
}

3
gcc/tree-cfg.c
View File

@ -658,11 +658,13 @@ make_cond_expr_edges (basic_block bb)
e = make_edge (bb, then_bb, EDGE_TRUE_VALUE);
e->goto_locus = gimple_location (then_stmt);
if (e->goto_locus)
e->goto_block = gimple_block (then_stmt);
e = make_edge (bb, else_bb, EDGE_FALSE_VALUE);
if (e)
{
e->goto_locus = gimple_location (else_stmt);
if (e->goto_locus)
e->goto_block = gimple_block (else_stmt);
}
@ -853,6 +855,7 @@ make_goto_expr_edges (basic_block bb)
tree dest = gimple_goto_dest (goto_t);
edge e = make_edge (bb, label_to_block (dest), EDGE_FALLTHRU);
e->goto_locus = gimple_location (goto_t);
if (e->goto_locus)
e->goto_block = gimple_block (goto_t);
gsi_remove (&last, true);
return;

6
gcc/tree-ssa-live.c
View File

@ -600,6 +600,8 @@ remove_unused_locals (void)
{
gimple_stmt_iterator gsi;
size_t i;
edge_iterator ei;
edge e;
/* Walk the statements. */
for (gsi = gsi_start_bb (bb); !gsi_end_p (gsi); gsi_next (&gsi))
@ -634,6 +636,10 @@ remove_unused_locals (void)
mark_all_vars_used (&arg, NULL);
}
}
FOR_EACH_EDGE (e, ei, bb->succs)
if (e->goto_locus)
TREE_USED (e->goto_block) = true;
}
/* Remove unmarked local vars from local_decls. */