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tree-ssa-threadedge.c (thread_across_edge): Use foo.last () rather than foo[foo.length () - 1] to access last member in a vec.

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* tree-ssa-threadedge.c (thread_across_edge): Use foo.last () rather
        than foo[foo.length () - 1] to access last member in a vec.
        * tree-ssa-threadupdate.c (register_jump_thread): Similarly.

From-SVN: r202892
This commit is contained in:
Jeff Law 2013-09-25 09:33:34 -06:00 committed by Jeff Law
parent ed0d30514f
commit af33629e0a
3 changed files with 10 additions and 5 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2013-09-25 Jeff Law <law@redhat.com>
* tree-ssa-threadedge.c (thread_across_edge): Use foo.last () rather
than foo[foo.length () - 1] to access last member in a vec.
* tree-ssa-threadupdate.c (register_jump_thread): Similarly.
2013-09-25 Richard Biener <rguenther@suse.de>
PR middle-end/58521

7
gcc/tree-ssa-threadedge.c
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@ -947,8 +947,7 @@ thread_across_edge (gimple dummy_cond,
}
remove_temporary_equivalences (stack);
propagate_threaded_block_debug_into (path[path.length () - 1]->dest,
e->dest);
propagate_threaded_block_debug_into (path.last ()->dest, e->dest);
register_jump_thread (path, false);
path.release ();
return;
@ -987,7 +986,7 @@ thread_across_edge (gimple dummy_cond,
path.safe_push (taken_edge);
found = false;
if ((e->flags & EDGE_DFS_BACK) == 0
|| ! cond_arg_set_in_bb (path[path.length () - 1], e->dest))
|| ! cond_arg_set_in_bb (path.last (), e->dest))
found = thread_around_empty_blocks (taken_edge,
dummy_cond,
handle_dominating_asserts,
@ -999,7 +998,7 @@ thread_across_edge (gimple dummy_cond,
record the jump threading opportunity. */
if (found)
{
propagate_threaded_block_debug_into (path[path.length () - 1]->dest,
propagate_threaded_block_debug_into (path.last ()->dest,
taken_edge->dest);
register_jump_thread (path, true);
}

2
gcc/tree-ssa-threadupdate.c
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@ -1401,7 +1401,7 @@ register_jump_thread (vec<edge> path, bool through_joiner)
if (!through_joiner)
e3 = NULL;
else
e3 = path[path.length () - 1];
e3 = path.last ();
/* This can occur if we're jumping to a constant address or
or something similar. Just get out now. */