tree-cfg.c (tree_verify_flow_info): Make sure that labels in SWITCH_LABELS are always sorted.
* tree-cfg.c (tree_verify_flow_info): Make sure that labels in SWITCH_LABELS are always sorted. From-SVN: r82683
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@ -1,3 +1,8 @@
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2004-06-06 Steven Bosscher <stevenb@suse.de>
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* tree-cfg.c (tree_verify_flow_info): Make sure that labels in
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SWITCH_LABELS are always sorted.
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2004-06-06 Steven Bosscher <stevenb@suse.de>
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* hooks.c (hook_int_void_1): New generic hook.
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@ -3631,6 +3631,7 @@ tree_verify_flow_info (void)
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case SWITCH_EXPR:
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{
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tree prev;
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edge e;
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size_t i, n;
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tree vec;
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@ -3649,6 +3650,34 @@ tree_verify_flow_info (void)
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label_bb->aux = (void *)1;
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}
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/* Verify that the case labels are sorted. */
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prev = TREE_VEC_ELT (vec, 0);
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for (i = 1; i < n - 1; ++i)
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{
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tree c = TREE_VEC_ELT (vec, i);
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if (! CASE_LOW (c))
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{
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error ("Found default case not at end of case vector");
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err = 1;
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continue;
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}
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if (! tree_int_cst_lt (CASE_LOW (prev), CASE_LOW (c)))
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{
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error ("Case labels not sorted:\n ");
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print_generic_expr (stderr, prev, 0);
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fprintf (stderr," is greater than ");
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print_generic_expr (stderr, c, 0);
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fprintf (stderr," but comes before it.\n");
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err = 1;
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}
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prev = c;
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}
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if (CASE_LOW (TREE_VEC_ELT (vec, n - 1)))
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{
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error ("No default case found at end of case vector");
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err = 1;
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}
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for (e = bb->succ; e; e = e->succ_next)
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{
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if (!e->dest->aux)
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