r230845 - in /trunk/gcc: ChangeLog config/mips/...

[sje@gcc.gnu.org]

Author: sje
Date: Tue Nov 24 22:09:17 2015
New Revision: 230845

URL: https://gcc.gnu.org/viewcvs?rev=230845&root=gcc&view=rev
Log:
2015-11-24  Steve Ellcey  <sellcey@imgtec.com>

	* frame-header-opt.c (gate): Check for optimize > 0.
	(has_inlined_assembly): New function.
	(needs_frame_header_p): Remove is_leaf_function check,
	add argument type check.
	(callees_functions_use_frame_header): Add is_leaf_function
	and has_inlined_assembly calls..
	(set_callers_may_not_allocate_frame): New function.
	(frame_header_opt): Add is_leaf_function call, add
	set_callers_may_not_allocate_frame call.
	* config/mips/mips.c (mips_compute_frame_info): Add check
	to see if callee saved regs can be put in frame header.
	(mips_expand_prologue): Add check to see if step1 is zero,
	fix cfa restores when using frame header to store regs.
	(mips_can_use_return_insn): Check to see if registers are
	stored in frame header.
	* config/mips/mips.h (machine_function): Add
	callers_may_not_allocate_frame and
	use_frame_header_for_callee_saved_regs fields.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/mips/frame-header-opt.c
    trunk/gcc/config/mips/mips.c
    trunk/gcc/config/mips/mips.h