https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65697
--- Comment #66 from mwahab at gcc dot gnu.org --- Author: mwahab Date: Wed Aug 5 11:20:59 2015 New Revision: 226618 URL: https://gcc.gnu.org/viewcvs?rev=226618&root=gcc&view=rev Log: Backport from trunk 2015-05-12 Andrew MacLeod <amacl...@redhat.com> PR target/65697 * coretypes.h (MEMMODEL_SYNC, MEMMODEL_BASE_MASK): New macros. (enum memmodel): Add SYNC_{ACQUIRE,RELEASE,SEQ_CST}. * tree.h (memmodel_from_int, memmodel_base, is_mm_relaxed) (is_mm_consume,is_mm_acquire, is_mm_release, is_mm_acq_rel) (is_mm_seq_cst, is_mm_sync): New accessor functions. * builtins.c (expand_builtin_sync_operation) (expand_builtin_compare_and_swap): Use MEMMODEL_SYNC_SEQ_CST. (expand_builtin_sync_lock_release): Use MEMMODEL_SYNC_RELEASE. (get_memmodel, expand_builtin_atomic_compare_exchange) (expand_builtin_atomic_load, expand_builtin_atomic_store) (expand_builtin_atomic_clear): Use new accessor routines. (expand_builtin_sync_synchronize): Use MEMMODEL_SYNC_SEQ_CST. * optabs.c (expand_compare_and_swap_loop): Use MEMMODEL_SYNC_SEQ_CST. (maybe_emit_sync_lock_test_and_set): Use new accessors and MEMMODEL_SYNC_ACQUIRE. (expand_sync_lock_test_and_set): Use MEMMODEL_SYNC_ACQUIRE. (expand_mem_thread_fence, expand_mem_signal_fence, expand_atomic_load) (expand_atomic_store): Use new accessors. * emit-rtl.c (need_atomic_barrier_p): Add additional enum cases. * tsan.c (instrument_builtin_call): Update check for memory model beyond final enum to use MEMMODEL_LAST. * c-family/c-common.c: Use new accessor for memmodel_base. * config/aarch64/aarch64.c (aarch64_expand_compare_and_swap): Use new accessors. * config/aarch64/atomics.md (atomic_load<mode>,atomic_store<mode>) (arch64_load_exclusive<mode>, aarch64_store_exclusive<mode>) (mem_thread_fence, *dmb): Likewise. * config/alpha/alpha.c (alpha_split_compare_and_swap) (alpha_split_compare_and_swap_12): Likewise. * config/arm/arm.c (arm_expand_compare_and_swap) (arm_split_compare_and_swap, arm_split_atomic_op): Likewise. * config/arm/sync.md (atomic_load<mode>, atomic_store<mode>) (atomic_loaddi): Likewise. * config/i386/i386.c (ix86_destroy_cost_data, ix86_memmodel_check): Likewise. * config/i386/sync.md (mem_thread_fence, atomic_store<mode>): Likewise. * config/ia64/ia64.c (ia64_expand_atomic_op): Add new memmodel cases and use new accessors. * config/ia64/sync.md (mem_thread_fence, atomic_load<mode>) (atomic_store<mode>, atomic_compare_and_swap<mode>) (atomic_exchange<mode>): Use new accessors. * config/mips/mips.c (mips_process_sync_loop): Likewise. * config/pa/pa.md (atomic_loaddi, atomic_storedi): Likewise. * config/rs6000/rs6000.c (rs6000_pre_atomic_barrier) (rs6000_post_atomic_barrier): Add new cases. (rs6000_expand_atomic_compare_and_swap): Use new accessors. * config/rs6000/sync.md (mem_thread_fence): Add new cases. (atomic_load<mode>): Add new cases and use new accessors. (store_quadpti): Add new cases. * config/s390/s390.md (mem_thread_fence, atomic_store<mode>): Use new accessors. * config/sparc/sparc.c (sparc_emit_membar_for_model): Use new accessors. * doc/extend.texi: Update docs to indicate 16 bits are used for memory model, not 8. Modified: branches/gcc-5-branch/gcc/ChangeLog branches/gcc-5-branch/gcc/builtins.c branches/gcc-5-branch/gcc/c-family/c-common.c branches/gcc-5-branch/gcc/config/aarch64/aarch64.c branches/gcc-5-branch/gcc/config/aarch64/atomics.md branches/gcc-5-branch/gcc/config/alpha/alpha.c branches/gcc-5-branch/gcc/config/arm/arm.c branches/gcc-5-branch/gcc/config/arm/sync.md branches/gcc-5-branch/gcc/config/i386/i386.c branches/gcc-5-branch/gcc/config/i386/sync.md branches/gcc-5-branch/gcc/config/ia64/ia64.c branches/gcc-5-branch/gcc/config/ia64/sync.md branches/gcc-5-branch/gcc/config/mips/mips.c branches/gcc-5-branch/gcc/config/pa/pa.md branches/gcc-5-branch/gcc/config/rs6000/rs6000.c branches/gcc-5-branch/gcc/config/rs6000/sync.md branches/gcc-5-branch/gcc/config/s390/s390.md branches/gcc-5-branch/gcc/config/sparc/sparc.c branches/gcc-5-branch/gcc/coretypes.h branches/gcc-5-branch/gcc/doc/extend.texi branches/gcc-5-branch/gcc/emit-rtl.c branches/gcc-5-branch/gcc/optabs.c branches/gcc-5-branch/gcc/tree.h branches/gcc-5-branch/gcc/tsan.c
