* config/arm/arm.h (INCOMING_RETURN_ADDR_RTX): Define. (DWARF_FRAME_RETURN_COLUMN): Define. * config/arm/arm.c (emit_multi_reg_push): Return rtx. Attach REG_FRAME_RELATED_EXPR note. (emit_sfm): Likewise. (arm_expand_prologue): Set RTX_FRAME_RELATED_P on everything. * dwarf2out.c (reg_save): Handle saving a register to itself. (dwarf2out_frame_debug_expr): Handle an intermediate cfa reg. * except.c (eh_regs): Don't use the static chain reg if it's callee-saved. * frame.h (frame_state): Add cfa_saved field. * frame.c (execute_cfa_insn): Set it. * libgcc2.c (throw_helper): Don't adjust sp if it's restored in the epilogue. * function.c (ARG_POINTER_CFA_OFFSET): Default to FIRST_PARM_OFFSET. Now takes a parm. (instantiate_virtual_regs): Adjust. * tm.texi: Adjust. * config/m68k/m68k.h (ARG_POINTER_CFA_OFFSET): Don't define. * config/ns32k/ns32k.h (ARG_POINTER_CFA_OFFSET): Don't define. * config/sparc/sparc.h (ARG_POINTER_CFA_OFFSET): Take a parm. * dwarf2out.c (reg_number): Refer to FIRST_PSEUDO_REGISTER. (initial_return_save): Use DWARF_FRAME_REGNUM, not reg_number. From-SVN: r32696
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