r252995 - in /trunk/gcc: ChangeLog config/aarch...

[law@gcc.gnu.org]

Author: law
Date: Wed Sep 20 05:05:12 2017
New Revision: 252995

URL: https://gcc.gnu.org/viewcvs?rev=252995&root=gcc&view=rev
Log:
2017-09-18  Jeff Law  <law@redhat.com>

	* explow.c: Include "params.h".
	(anti_adjust_stack_and_probe_stack_clash): New function.
	(get_stack_check_protect): Likewise.
	(compute_stack_clash_protection_loop_data): Likewise.
	(emit_stack_clash_protection_loop_start): Likewise.
	(emit_stack_clash_protection_loop_end): Likewise.
	(allocate_dynamic_stack_space): Use get_stack_check_protect.
	Use anti_adjust_stack_and_probe_stack_clash.
	* explow.h (compute_stack_clash_protection_loop_data): Prototype.
	(emit_stack_clash_protection_loop_start): Likewise.
	(emit_stack_clash_protection_loop_end): Likewise.
	* rtl.h (get_stack_check_protect): Prototype.
	* target.def (stack_clash_protection_final_dynamic_probe): New hook.
	* targhooks.c (default_stack_clash_protection_final_dynamic_probe): New.
	* targhooks.h (default_stack_clash_protection_final_dynamic_probe):
	Prototype.
	* doc/tm.texi.in (TARGET_STACK_CLASH_PROTECTION_FINAL_DYNAMIC_PROBE):
	Add @hook.
	* doc/tm.texi: Rebuilt.
	* config/aarch64/aarch64.c (aarch64_expand_prologue): Use
	get_stack_check_protect.
	* config/alpha/alpha.c (alpha_expand_prologue): Likewise.
	* config/arm/arm.c (arm_expand_prologue): Likewise.
	(arm_frame_pointer_required): Likewise.
	* config/i386/i386.c (ix86_expand_prologue): Likewise.
	* config/ia64/ia64.c (ia64_expand_prologue): Likewise.
	* config/mips/mips.c (mips_expand_prologue): Likewise.
	* config/powerpcspe/powerpcspe.c (rs6000_emit_prologue): Likewise.
	* config/rs6000/rs6000.c (rs6000_emit_prologue): Likewise.
	* config/sparc/sparc.c (sparc_expand_prologue): Likewise.
	(sparc_flat_expand_prologue): Likewise.

	* gcc.dg/stack-check-3.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/stack-check-3.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/aarch64/aarch64.c
    trunk/gcc/config/alpha/alpha.c
    trunk/gcc/config/arm/arm.c
    trunk/gcc/config/i386/i386.c
    trunk/gcc/config/ia64/ia64.c
    trunk/gcc/config/mips/mips.c
    trunk/gcc/config/powerpcspe/powerpcspe.c
    trunk/gcc/config/rs6000/rs6000.c
    trunk/gcc/config/sparc/sparc.c
    trunk/gcc/doc/tm.texi
    trunk/gcc/doc/tm.texi.in
    trunk/gcc/explow.c
    trunk/gcc/explow.h
    trunk/gcc/rtl.h
    trunk/gcc/target.def
    trunk/gcc/targhooks.c
    trunk/gcc/targhooks.h
    trunk/gcc/testsuite/ChangeLog