+2013-03-22 Steven Bosscher <steven@gcc.gnu.org>
+
+ * df.h (df_insn_delete): Adjust prototype.
+ * emit-rtl.c (remove_insn): Pass a basic block to df_insn_delete
+ and let it decide whether mark the basic block dirty.
+ (set_insn_deleted): Only pass INSN_P insns to df_insn_delete.
+ * df-scan.c (df_insn_info_delete): New helper function, split
+ off from df_insn_delete.
+ (df_scan_free_bb_info): Use it.
+ (df_insn_rescan, df_insn_rescan_all, df_process_deferred_rescans):
+ Likewise.
+ (df_insn_delete): Likewise. Take insn rtx as argument. Verify
+ that the insn is actually an insn and it has a non-NULL basic block.
+ Do not mark basic block dirty if only deleting a DEBUG_INSN.
+
2013-03-22 Richard Biener <rguenther@suse.de>
* tree-ssa-loop-im.c (struct mem_ref): Remove indep_ref and