re PR tree-optimization/56426 (Segmentation fault in find_var_scev_info, at tree-scalar-evolution.c:358)
2013-02-26 Marek Polacek <polacek@redhat.com> PR tree-optimization/56426 * tree-ssa-loop.c (tree_ssa_loop_init): Always call scev_initialize. From-SVN: r196281
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@ -1,3 +1,9 @@
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2013-02-26 Marek Polacek <polacek@redhat.com>
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PR tree-optimization/56426
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* tree-ssa-loop.c (tree_ssa_loop_init): Always call
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scev_initialize.
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2013-02-26 Richard Biener <rguenther@suse.de>
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PR target/56444
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@ -1,3 +1,8 @@
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2013-02-26 Marek Polacek <polacek@redhat.com>
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PR tree-optimization/56426
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* gcc.dg/pr56436.c: New test.
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2013-02-26 Jakub Jelinek <jakub@redhat.com>
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PR tree-optimization/56448
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@ -0,0 +1,22 @@
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/* PR tree-optimization/56426 */
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/* { dg-do compile } */
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/* { dg-options "-O2" } */
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int a, *c;
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void
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f (void)
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{
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int b = 0;
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for (a = 0;; a++)
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if (--b)
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{
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if (a)
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lbl:
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a++;
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c = &b;
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goto lbl;
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}
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}
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@ -70,10 +70,13 @@ tree_ssa_loop_init (void)
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rewrite_into_loop_closed_ssa (NULL, TODO_update_ssa);
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/* We might discover new loops, e.g. when turning irreducible
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regions into reducible. */
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scev_initialize ();
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if (number_of_loops () <= 1)
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return 0;
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scev_initialize ();
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return 0;
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}
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