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* tree-ssa-propagate.c (cfg_blocks_add) Assert we're not trying 

to insert the exit or entry block.
	(ssa_prop_init): Use add_control_edge to seed the algorithm.

From-SVN: r90802
This commit is contained in:
Steven Bosscher 2004-11-17 10:47:07 +00:00 committed by Steven Bosscher
parent e9fb72e85f
commit 39850c0b2e
2 changed files with 9 additions and 11 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2004-11-17 Steven Bosscher <stevenb@suse.de>
* tree-ssa-propagate.c (cfg_blocks_add) Assert we're not trying
to insert the exit or entry block.
(ssa_prop_init): Use add_control_edge to seed the algorithm.
2004-11-16 Zack Weinberg <zack@codesourcery.com>
* mkmap-flat.awk, mkmap-symver.awk: If the last version

14
gcc/tree-ssa-propagate.c
View File

@ -172,14 +172,12 @@ cfg_blocks_empty_p (void)
/* Add a basic block to the worklist. The block must not be already
in the worklist. */
in the worklist, and it must not be the ENTRY or EXIT block. */
static void
cfg_blocks_add (basic_block bb)
{
if (bb == ENTRY_BLOCK_PTR || bb == EXIT_BLOCK_PTR)
return;
gcc_assert (bb != ENTRY_BLOCK_PTR && bb != EXIT_BLOCK_PTR);
gcc_assert (!TEST_BIT (bb_in_list, bb->index));
if (cfg_blocks_empty_p ())
@ -494,13 +492,7 @@ ssa_prop_init (void)
/* Seed the algorithm by adding the successors of the entry block to the
edge worklist. */
FOR_EACH_EDGE (e, ei, ENTRY_BLOCK_PTR->succs)
{
if (e->dest != EXIT_BLOCK_PTR)
{
e->flags |= EDGE_EXECUTABLE;
cfg_blocks_add (e->dest);
}
}
add_control_edge (e);
}