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re PR tree-optimization/18716 ([ICE] verify_flow_info failed (loop))

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PR tree-opt/18716
        * tree-vectorizer.c (slpeel_make_loop_iterate_ntimes): Properly set
        then and else labels.

From-SVN: r91637
This commit is contained in:
Dorit Naishlos 2004-12-02 14:00:30 +00:00 • committed by Dorit Nuzman
parent 55dcbc1297
commit bfe5acd6af
2 changed files with 19 additions and 5 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2004-12-02 Dorit Naishlos <dorit@il.ibm.com>
PR tree-opt/18716
* tree-vectorizer.c (slpeel_make_loop_iterate_ntimes): Properly set
then and else labels.
2004-12-02 Andreas Schwab <schwab@suse.de>
* Makefile.in (WERROR_FLAGS): Renamed from WERROR.

18
gcc/tree-vectorizer.c
View file

@ -665,6 +665,8 @@ slpeel_make_loop_iterate_ntimes (struct loop *loop, tree niters)
tree exit_label = tree_block_label (loop->single_exit->dest);
tree init = build_int_cst (TREE_TYPE (niters), 0);
tree step = build_int_cst (TREE_TYPE (niters), 1);
tree then_label;
tree else_label;
orig_cond = get_loop_exit_condition (loop);
gcc_assert (orig_cond);
@ -677,14 +679,20 @@ slpeel_make_loop_iterate_ntimes (struct loop *loop, tree niters)
gcc_assert (bsi_stmt (loop_exit_bsi) == orig_cond);
if (exit_edge->flags & EDGE_TRUE_VALUE) /* 'then' edge exits the loop. */
cond = build2 (GE_EXPR, boolean_type_node, indx_after_incr, niters);
{
cond = build2 (GE_EXPR, boolean_type_node, indx_after_incr, niters);
then_label = build1 (GOTO_EXPR, void_type_node, exit_label);
else_label = build1 (GOTO_EXPR, void_type_node, begin_label);
}
else /* 'then' edge loops back. */
cond = build2 (LT_EXPR, boolean_type_node, indx_after_incr, niters);
{
cond = build2 (LT_EXPR, boolean_type_node, indx_after_incr, niters);
then_label = build1 (GOTO_EXPR, void_type_node, begin_label);
else_label = build1 (GOTO_EXPR, void_type_node, exit_label);
}
begin_label = build1 (GOTO_EXPR, void_type_node, begin_label);
exit_label = build1 (GOTO_EXPR, void_type_node, exit_label);
cond_stmt = build3 (COND_EXPR, TREE_TYPE (orig_cond), cond,
begin_label, exit_label);
then_label, else_label);
bsi_insert_before (&loop_exit_bsi, cond_stmt, BSI_SAME_STMT);
/* Remove old loop exit test: */