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r231509 - in /trunk/gcc: ChangeLog config/arc/a...
- From: claziss at gcc dot gnu dot org
- To: gcc-cvs at gcc dot gnu dot org
- Date: Thu, 10 Dec 2015 13:32:22 -0000
- Subject: r231509 - in /trunk/gcc: ChangeLog config/arc/a...
Author: claziss
Date: Thu Dec 10 13:32:21 2015
New Revision: 231509
URL: https://gcc.gnu.org/viewcvs?rev=231509&root=gcc&view=rev
Log:
[ARC] Add support for atomic memory built-in.
gcc/
2015-12-10 Claudiu Zissulescu <claziss@synopsys.com>
* config/arc/arc-protos.h (arc_expand_atomic_op): Prototype.
(arc_split_compare_and_swap): Likewise.
(arc_expand_compare_and_swap): Likewise.
* config/arc/arc.c (arc_init): Check usage atomic option.
(arc_pre_atomic_barrier): New function.
(arc_post_atomic_barrier): Likewise.
(emit_unlikely_jump): Likewise.
(arc_expand_compare_and_swap_qh): Likewise.
(arc_expand_compare_and_swap): Likewise.
(arc_split_compare_and_swap): Likewise.
(arc_expand_atomic_op): Likewise.
* config/arc/arc.h (TARGET_CPU_CPP_BUILTINS): New C macro.
(ASM_SPEC): Enable mlock option when matomic is used.
* config/arc/arc.md (UNSPEC_ARC_MEMBAR): Define.
(VUNSPEC_ARC_CAS): Likewise.
(VUNSPEC_ARC_LL): Likewise.
(VUNSPEC_ARC_SC): Likewise.
(VUNSPEC_ARC_EX): Likewise.
* config/arc/arc.opt (matomic): New option.
* config/arc/constraints.md (ATO): New constraint.
* config/arc/predicates.md (mem_noofs_operand): New predicate.
* doc/invoke.texi: Document -matomic.
* config/arc/atomic.md: New file.
gcc/testsuite
2015-12-10 Claudiu Zissulescu <claziss@synopsys.com>
* lib/target-supports.exp (check_effective_target_arc_atomic): New
function.
(check_effective_target_sync_int_long): Add checks for ARC atomic
feature.
(check_effective_target_sync_char_short): Likewise.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/config/arc/arc-protos.h
trunk/gcc/config/arc/arc.c
trunk/gcc/config/arc/arc.h
trunk/gcc/config/arc/arc.md
trunk/gcc/config/arc/arc.opt
trunk/gcc/config/arc/constraints.md
trunk/gcc/config/arc/predicates.md
trunk/gcc/doc/invoke.texi
trunk/gcc/testsuite/ChangeLog
trunk/gcc/testsuite/lib/target-supports.exp