contrib/gcc/tree-ssa-threadedge.c

229       tree cached_lhs = NULL;
264 	cached_lhs = TREE_OPERAND (stmt, 1);
266 	cached_lhs = TREE_OPERAND (TREE_OPERAND (stmt, 1), 0);
316 	      cached_lhs = fold (pre_fold_expr);
317 	      if (TREE_CODE (cached_lhs) != SSA_NAME
318 		  && !is_gimple_min_invariant (cached_lhs))
319 	        cached_lhs = (*simplify) (stmt, stmt);
332       if (cached_lhs
333 	  && (TREE_CODE (cached_lhs) == SSA_NAME
334 	      || is_gimple_min_invariant (cached_lhs)))
336 				      cached_lhs,
360   tree cond, cached_lhs;
431       cached_lhs = fold (COND_EXPR_COND (dummy_cond));
432       while (TREE_CODE (cached_lhs) == NOP_EXPR
433 	     || TREE_CODE (cached_lhs) == CONVERT_EXPR
434 	     || TREE_CODE (cached_lhs) == NON_LVALUE_EXPR)
435 	cached_lhs = TREE_OPERAND (cached_lhs, 0);
437       fold_undefer_overflow_warnings (is_gimple_min_invariant (cached_lhs),
442       if (! is_gimple_min_invariant (cached_lhs))
443 	cached_lhs = (*simplify) (dummy_cond, stmt);
450       cached_lhs = cond;
457       if (cached_lhs
458 	  && TREE_CODE (cached_lhs) == SSA_NAME
459 	  && SSA_NAME_VALUE (cached_lhs))
460 	cached_lhs = SSA_NAME_VALUE (cached_lhs);
464       if (handle_dominating_asserts && TREE_CODE (cached_lhs) == SSA_NAME)
465 	cached_lhs = lhs_of_dominating_assert (cached_lhs, e->src, stmt);
469       if (cached_lhs && ! is_gimple_min_invariant (cached_lhs))
470         cached_lhs = (*simplify) (stmt, stmt);
473     cached_lhs = NULL;
475   return cached_lhs;