+2011-11-05 Jakub Jelinek <jakub@redhat.com>
+
+ PR tree-optimization/50693
+ * tree-cfg.c (gimple_can_merge_blocks_p): Allow merging with
+ non-forced user labels.
+ (gimple_merge_blocks): Turn non-forced user labels into
+ debug bind stmt with the label as first operand and reset value.
+ (gimple_duplicate_bb): Don't duplicate label debug stmts.
+ * dwarf2out.c (gen_label_die): Handle NOTE_INSN_DELETED_DEBUG_LABEL.
+ * final.c (final_scan_insn): Likewise.
+ (rest_of_clean_state): Don't dump NOTE_INSN_DELETED_DEBUG_LABEL.
+ * var-tracking.c (debug_label_num): New variable.
+ (delete_debug_insns): Don't delete DEBUG_INSNs for LABEL_DECLs,
+ instead turn them into NOTE_INSN_DELETED_DEBUG_LABEL notes.
+ * cfglayout.c (skip_insns_after_block, duplicate_insn_chain): Handle
+ NOTE_INSN_DELETED_DEBUG_LABEL.
+ (duplicate_insn_chain): Don't duplicate LABEL_DECL DEBUG_INSNs.
+ * insn-notes.def (DELETED_DEBUG_LABEL): New note kind.
+ * print-rtl.c (print_rtx): Handle NOTE_INSN_DELETED_DEBUG_LABEL.
+ * gengtype.c (adjust_field_rtx_def): Likewise.
+ * config/i386/i386.c (ix86_output_function_epilogue): For MachO
+ clear CODE_LABEL_NUMBER of NOTE_INSN_DELETED_DEBUG_LABEL
+ if their are at the end of function and nop hasn't been emitted.
+ * config/rs6000/rs6000.c (rs6000_output_function_epilogue): Likewise.
+
2011-11-05 Georg-Johann Lay <avr@gjlay.de>
PR rtl-optimization/50448
__UINT24_MAX__): New built-in defines.
* config/avr/avr.md (adjust_len): Add tstpsi, mov24, reload_in24,
ashlpsi, ashrpsi, lshrpsi.
- (QISO, QIDI, HISI, HIDI, MPUSH, rotx, rotsmode): Add PSI.
+ (QISI, QIDI, HISI, HIDI, MPUSH, rotx, rotsmode): Add PSI.
(MOVMODE): New mode iterator.
(movpsi): New expander.
(movqi, movhi, movsi, movsf, movpsi): Write as one using MOVMODE.
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