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Re: [patch] Fix PR target/48220 for the SPARC
- From: Richard Henderson <rth at redhat dot com>
- To: Eric Botcazou <ebotcazou at adacore dot com>
- Cc: gcc-patches at gcc dot gnu dot org
- Date: Fri, 15 Jul 2011 09:00:17 -0700
- Subject: Re: [patch] Fix PR target/48220 for the SPARC
- References: <201107142342.57471.ebotcazou@adacore.com>
On 07/14/2011 02:42 PM, Eric Botcazou wrote:
> PR target/48220
> * doc/md.texi (Standard Names): Document window_save.
> * cfgexpand.c (expand_debug_parm_decl): New function extracted from
> expand_debug_expr and expand_debug_source_expr. If the target has
> a window_save instruction, adjust the ENTRY_VALUE_EXP.
> (expand_debug_expr) <SSA_NAME>: Call expand_debug_parm_decl if the
> SSA_NAME_VAR is a parameter.
> (expand_debug_source_expr) <PARM_DECL>: Call expand_debug_parm_decl.
> * var-tracking.c (parm_reg_t): New type and associated vector type.
> (windowed_parm_regs): New variable.
> (adjust_insn): If the target has a window_save instruction and this
> is the instruction, make its effect on parameter registers explicit.
> (next_non_note_insn_var_location): New function.
> (emit_notes_in_bb): Use it instead of NEXT_INSN throughout.
> (vt_add_function_parameter): If the target has a window_save insn,
> adjust the incoming RTL and record that in windowed_parm_regs.
> (vt_finalize): Free windowed_parm_regs.
Ok.
r~