alias.c (true_dependence): Remove 'abort' from comments.

	* alias.c (true_dependence): Remove 'abort' from comments. Use
	gcc_assert and gcc_unreachable as appropriate.
	(canon_true_dependence): Likewise.
	* bb-reorder.c (connect_traces): Likewise.
	* c-common.c (c_add_case_label): Likewise.
	* c-decl.c (finish_function): Likewise.
	* caller-save.c (insert_restore, insert_save): Likewise.
	* cfg.c (update_bb_profile_for_threading): Likewise.
	* cfganal.c (flow_active_insn_p): Likewise.
	* cfgexpand.c (add_reg_br_prob_note): Likewise.
	* cfgrtl.c (rtl_redirect_edge_and_branch_force, rtl_split_edge,
	cfg_layout_merge_blocks): Likewise.
	* ifcvt.c (cond_exec_process_insns, merge_if_block,
	find_if_block): Likewise.
	* integrate.c (allocate_initial_values): Likewise.
	* jump.c (reverse_condition, reverse_condition_maybe_unordered,
	swap_condition, unsigned_condition, signed_condition,
	mark_jump_label, invert_jump_1, rtx_renumbered_equal_p,
	reg_or_subregno): Likewise.
	* lambda-code.c (lambda_compute_auxillary_space,
	lambda_transform_legal_p): Likewise.
	* lambda-mat.c (lambda_matrix_inverse_hard): Likewise.
	* langhooks.c (lhd_set_decl_assembler_name, lhd_type_promotes_to,
	lhd_incomplete_type_error, lhd_expand_expr,
	lhd_types_compatible_p, lhd_tree_size): Likewise.
	* lcm.c (create_pre_exit, optimize_mode_switching): Likewise.
	* local-alloc.c (update_equiv_regs): Likewise.
	* loop-unroll.c (peel_loop_completely
	unroll_loop_constant_iterations, unroll_loop_runtime_iterations,
	peel_loop_simple, unroll_loop_stupid,
	analyze_iv_to_split_insn): Likewise.
	* loop.c (gen_prefetch, find_and_verify_loops,
	basic_induction_var): Likewise.
	* modulo-sched.c (normalize_sched_times, check_nodes_order): Likewise.
	* value-prof.c (tree_find_values_to_profile): Likewise.
	* varasm.c (named_section, default_assemble_integer,
	decode_addr_const): Likewise.

From-SVN: r98508

1 files changed, 8 insertions, 5 deletions

diff --git a/gcc/loop.c b/gcc/loop.c
index 005560a..a61c8df 100644
--- a/gcc/loop.c
+++ b/gcc/loop.c
@@ -424,7 +424,7 @@ struct loop_info
 #ifndef HAVE_prefetch
 #define HAVE_prefetch 0
 #define CODE_FOR_prefetch 0
-#define gen_prefetch(a,b,c) (abort(), NULL_RTX)
+#define gen_prefetch(a,b,c) (gcc_unreachable (), NULL_RTX)
 #endif
 
 /* Give up the prefetch optimizations once we exceed a given threshold.
@@ -3280,6 +3280,7 @@ find_and_verify_loops (rtx f, struct loops *loops)
 		    if (invert_jump (p, new_label, 1))
 		      {
 			rtx q, r;
+			bool only_notes;
 
 			/* If no suitable BARRIER was found, create a suitable
 			   one before TARGET.  Since TARGET is a fall through
@@ -3304,8 +3305,10 @@ find_and_verify_loops (rtx f, struct loops *loops)
 
 			/* Include the BARRIER after INSN and copy the
 			   block after LOC.  */
-			if (squeeze_notes (&new_label, &last_insn_to_move))
-			  abort ();
+			only_notes = squeeze_notes (&new_label,
+						    &last_insn_to_move);
+			gcc_assert (!only_notes);
+			
 			reorder_insns (new_label, last_insn_to_move, loc);
 
 			/* All those insns are now in TARGET_LOOP.  */
@@ -7649,9 +7652,9 @@ basic_induction_var (const struct loop *loop, rtx x, enum machine_mode mode,
     case CONST_INT:
     case SYMBOL_REF:
     case CONST:
-      /* convert_modes aborts if we try to convert to or from CCmode, so just
+      /* convert_modes dies if we try to convert to or from CCmode, so just
          exclude that case.  It is very unlikely that a condition code value
-	 would be a useful iterator anyways.  convert_modes aborts if we try to
+	 would be a useful iterator anyways.  convert_modes dies if we try to
 	 convert a float mode to non-float or vice versa too.  */
       if (loop->level == 1
 	  && GET_MODE_CLASS (mode) == GET_MODE_CLASS (GET_MODE (dest_reg))