Cross Reference: /src/external/gpl3/gcc.old/dist/gcc/tree-ssa-loop-niter.cc

Lines Matching refs:may_be_zero
1246     niter->may_be_zero = fold_build2 (TRUTH_OR_EXPR, boolean_type_node,
1247 				      niter->may_be_zero,
1448       niter->may_be_zero = fold_build2 (TRUTH_OR_EXPR, boolean_type_node,
1449 					niter->may_be_zero, mbz);
1462   tree step, num, assumptions, may_be_zero, span;
1465   may_be_zero = fold_build2 (LE_EXPR, boolean_type_node, iv1->base, iv0->base);
1466   if (integer_onep (may_be_zero))
1499 	    may_be_zero = fold_build2 (EQ_EXPR, boolean_type_node,
1547   niter->may_be_zero = may_be_zero;
1641 	niter->may_be_zero = fold_build2 (LT_EXPR, boolean_type_node,
1825      if may_be_zero then the loop does not roll, even if
1828   niter->may_be_zero = boolean_false_node;
1999 	  if (!integer_zerop (niter->may_be_zero))
2002 	      print_generic_expr (dump_file, niter->may_be_zero, TDF_SLIM);
2610       niter->may_be_zero = simplify_using_outer_evolutions (loop,
2611 							    niter->may_be_zero);
2618   niter->may_be_zero
2620 					       niter->may_be_zero);
2816       tree may_be_zero = fold_build2 (EQ_EXPR, boolean_type_node, src,
2818       niter->may_be_zero
2819 	= simplify_using_initial_conditions (loop, may_be_zero);
2822     niter->may_be_zero = boolean_false_node;
2876       if (integer_nonzerop (desc.may_be_zero))
2885       if (!integer_zerop (desc.may_be_zero))
4418       if (TREE_CODE (niter_desc.may_be_zero) != INTEGER_CST)
4419 	niter = build3 (COND_EXPR, type, niter_desc.may_be_zero,
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