Eenable -Winvalid-memory-order for C++ [PR99612].
Resolves: PR middle-end/99612 - Remove "#pragma GCC system_header" from atomic file to warn on incorrect memory order gcc/ChangeLog: PR middle-end/99612 * builtins.c (get_memmodel): Move warning code to gimple-ssa-warn-access.cc. (expand_builtin_atomic_compare_exchange): Same. (expand_ifn_atomic_compare_exchange): Same. (expand_builtin_atomic_load): Same. (expand_builtin_atomic_store): Same. (expand_builtin_atomic_clear): Same. * doc/extend.texi (__atomic_exchange_n): Update valid memory models. * gimple-ssa-warn-access.cc (memmodel_to_uhwi): New function. (struct memmodel_pair): New struct. (memmodel_name): New function. (pass_waccess::maybe_warn_memmodel): New function. (pass_waccess::check_atomic_memmodel): New function. (pass_waccess::check_atomic_builtin): Handle memory model. * input.c (expansion_point_location_if_in_system_header): Return original location if expansion location is in a system header. gcc/testsuite/ChangeLog: PR middle-end/99612 * c-c++-common/pr83059.c: Adjust text of expected diagnostics. * gcc.dg/atomic-invalid-2.c: Same. * gcc.dg/atomic-invalid.c: Same. * c-c++-common/Winvalid-memory-model.c: New test. * g++.dg/warn/Winvalid-memory-model-2.C: New test. * g++.dg/warn/Winvalid-memory-model.C: New test.
This commit is contained in:
Martin Sebor
parent
708b87dcb6
commit
5a431b60d1
124
gcc/builtins.c
124
gcc/builtins.c
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@ -5791,35 +5791,22 @@ expand_builtin_sync_lock_release (machine_mode mode, tree exp)
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static enum memmodel
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get_memmodel (tree exp)
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{
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rtx op;
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unsigned HOST_WIDE_INT val;
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location_t loc
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= expansion_point_location_if_in_system_header (input_location);
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/* If the parameter is not a constant, it's a run time value so we'll just
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convert it to MEMMODEL_SEQ_CST to avoid annoying runtime checking. */
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if (TREE_CODE (exp) != INTEGER_CST)
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return MEMMODEL_SEQ_CST;
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op = expand_normal (exp);
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rtx op = expand_normal (exp);
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val = INTVAL (op);
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unsigned HOST_WIDE_INT val = INTVAL (op);
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if (targetm.memmodel_check)
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val = targetm.memmodel_check (val);
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else if (val & ~MEMMODEL_MASK)
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{
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warning_at (loc, OPT_Winvalid_memory_model,
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"unknown architecture specifier in memory model to builtin");
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return MEMMODEL_SEQ_CST;
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}
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return MEMMODEL_SEQ_CST;
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/* Should never see a user explicit SYNC memodel model, so >= LAST works. */
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if (memmodel_base (val) >= MEMMODEL_LAST)
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{
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warning_at (loc, OPT_Winvalid_memory_model,
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"invalid memory model argument to builtin");
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return MEMMODEL_SEQ_CST;
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}
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return MEMMODEL_SEQ_CST;
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/* Workaround for Bugzilla 59448. GCC doesn't track consume properly, so
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be conservative and promote consume to acquire. */
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@ -5866,28 +5853,17 @@ expand_builtin_atomic_compare_exchange (machine_mode mode, tree exp,
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{
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rtx expect, desired, mem, oldval;
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rtx_code_label *label;
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enum memmodel success, failure;
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tree weak;
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bool is_weak;
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location_t loc
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= expansion_point_location_if_in_system_header (input_location);
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success = get_memmodel (CALL_EXPR_ARG (exp, 4));
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failure = get_memmodel (CALL_EXPR_ARG (exp, 5));
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memmodel success = get_memmodel (CALL_EXPR_ARG (exp, 4));
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memmodel failure = get_memmodel (CALL_EXPR_ARG (exp, 5));
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if (failure > success)
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{
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warning_at (loc, OPT_Winvalid_memory_model,
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"failure memory model cannot be stronger than success "
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"memory model for %<__atomic_compare_exchange%>");
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success = MEMMODEL_SEQ_CST;
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}
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success = MEMMODEL_SEQ_CST;
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if (is_mm_release (failure) || is_mm_acq_rel (failure))
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{
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warning_at (loc, OPT_Winvalid_memory_model,
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"invalid failure memory model for "
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"%<__atomic_compare_exchange%>");
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failure = MEMMODEL_SEQ_CST;
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success = MEMMODEL_SEQ_CST;
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}
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@ -5992,29 +5968,15 @@ expand_ifn_atomic_compare_exchange (gcall *call)
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int size = tree_to_shwi (gimple_call_arg (call, 3)) & 255;
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gcc_assert (size == 1 || size == 2 || size == 4 || size == 8 || size == 16);
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machine_mode mode = int_mode_for_size (BITS_PER_UNIT * size, 0).require ();
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rtx expect, desired, mem, oldval, boolret;
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enum memmodel success, failure;
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tree lhs;
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bool is_weak;
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location_t loc
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= expansion_point_location_if_in_system_header (gimple_location (call));
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success = get_memmodel (gimple_call_arg (call, 4));
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failure = get_memmodel (gimple_call_arg (call, 5));
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memmodel success = get_memmodel (gimple_call_arg (call, 4));
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memmodel failure = get_memmodel (gimple_call_arg (call, 5));
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if (failure > success)
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{
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warning_at (loc, OPT_Winvalid_memory_model,
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"failure memory model cannot be stronger than success "
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"memory model for %<__atomic_compare_exchange%>");
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success = MEMMODEL_SEQ_CST;
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}
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success = MEMMODEL_SEQ_CST;
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if (is_mm_release (failure) || is_mm_acq_rel (failure))
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{
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warning_at (loc, OPT_Winvalid_memory_model,
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"invalid failure memory model for "
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"%<__atomic_compare_exchange%>");
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failure = MEMMODEL_SEQ_CST;
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success = MEMMODEL_SEQ_CST;
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}
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@ -6026,15 +5988,15 @@ expand_ifn_atomic_compare_exchange (gcall *call)
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}
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/* Expand the operands. */
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mem = get_builtin_sync_mem (gimple_call_arg (call, 0), mode);
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rtx mem = get_builtin_sync_mem (gimple_call_arg (call, 0), mode);
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expect = expand_expr_force_mode (gimple_call_arg (call, 1), mode);
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desired = expand_expr_force_mode (gimple_call_arg (call, 2), mode);
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rtx expect = expand_expr_force_mode (gimple_call_arg (call, 1), mode);
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rtx desired = expand_expr_force_mode (gimple_call_arg (call, 2), mode);
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is_weak = (tree_to_shwi (gimple_call_arg (call, 3)) & 256) != 0;
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bool is_weak = (tree_to_shwi (gimple_call_arg (call, 3)) & 256) != 0;
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boolret = NULL;
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oldval = NULL;
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rtx boolret = NULL;
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rtx oldval = NULL;
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if (!expand_atomic_compare_and_swap (&boolret, &oldval, mem, expect, desired,
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is_weak, success, failure))
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@ -6043,7 +6005,7 @@ expand_ifn_atomic_compare_exchange (gcall *call)
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return;
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}
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lhs = gimple_call_lhs (call);
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tree lhs = gimple_call_lhs (call);
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if (lhs)
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{
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rtx target = expand_expr (lhs, NULL_RTX, VOIDmode, EXPAND_WRITE);
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@ -6062,24 +6024,15 @@ expand_ifn_atomic_compare_exchange (gcall *call)
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static rtx
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expand_builtin_atomic_load (machine_mode mode, tree exp, rtx target)
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{
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rtx mem;
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enum memmodel model;
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model = get_memmodel (CALL_EXPR_ARG (exp, 1));
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memmodel model = get_memmodel (CALL_EXPR_ARG (exp, 1));
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if (is_mm_release (model) || is_mm_acq_rel (model))
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{
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location_t loc
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= expansion_point_location_if_in_system_header (input_location);
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warning_at (loc, OPT_Winvalid_memory_model,
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"invalid memory model for %<__atomic_load%>");
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model = MEMMODEL_SEQ_CST;
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}
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model = MEMMODEL_SEQ_CST;
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if (!flag_inline_atomics)
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return NULL_RTX;
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/* Expand the operand. */
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mem = get_builtin_sync_mem (CALL_EXPR_ARG (exp, 0), mode);
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rtx mem = get_builtin_sync_mem (CALL_EXPR_ARG (exp, 0), mode);
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return expand_atomic_load (target, mem, model);
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}
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@ -6093,26 +6046,17 @@ expand_builtin_atomic_load (machine_mode mode, tree exp, rtx target)
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static rtx
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expand_builtin_atomic_store (machine_mode mode, tree exp)
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{
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rtx mem, val;
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enum memmodel model;
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model = get_memmodel (CALL_EXPR_ARG (exp, 2));
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memmodel model = get_memmodel (CALL_EXPR_ARG (exp, 2));
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if (!(is_mm_relaxed (model) || is_mm_seq_cst (model)
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|| is_mm_release (model)))
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{
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location_t loc
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= expansion_point_location_if_in_system_header (input_location);
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warning_at (loc, OPT_Winvalid_memory_model,
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"invalid memory model for %<__atomic_store%>");
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model = MEMMODEL_SEQ_CST;
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}
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model = MEMMODEL_SEQ_CST;
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if (!flag_inline_atomics)
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return NULL_RTX;
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/* Expand the operands. */
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mem = get_builtin_sync_mem (CALL_EXPR_ARG (exp, 0), mode);
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val = expand_expr_force_mode (CALL_EXPR_ARG (exp, 1), mode);
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rtx mem = get_builtin_sync_mem (CALL_EXPR_ARG (exp, 0), mode);
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rtx val = expand_expr_force_mode (CALL_EXPR_ARG (exp, 1), mode);
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return expand_atomic_store (mem, val, model, false);
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}
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@ -6370,29 +6314,19 @@ expand_ifn_atomic_op_fetch_cmp_0 (gcall *call)
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static rtx
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expand_builtin_atomic_clear (tree exp)
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{
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machine_mode mode;
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rtx mem, ret;
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enum memmodel model;
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mode = int_mode_for_size (BOOL_TYPE_SIZE, 0).require ();
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mem = get_builtin_sync_mem (CALL_EXPR_ARG (exp, 0), mode);
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model = get_memmodel (CALL_EXPR_ARG (exp, 1));
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machine_mode mode = int_mode_for_size (BOOL_TYPE_SIZE, 0).require ();
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rtx mem = get_builtin_sync_mem (CALL_EXPR_ARG (exp, 0), mode);
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memmodel model = get_memmodel (CALL_EXPR_ARG (exp, 1));
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if (is_mm_consume (model) || is_mm_acquire (model) || is_mm_acq_rel (model))
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{
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location_t loc
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= expansion_point_location_if_in_system_header (input_location);
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warning_at (loc, OPT_Winvalid_memory_model,
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"invalid memory model for %<__atomic_store%>");
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model = MEMMODEL_SEQ_CST;
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}
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model = MEMMODEL_SEQ_CST;
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/* Try issuing an __atomic_store, and allow fallback to __sync_lock_release.
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Failing that, a store is issued by __atomic_store. The only way this can
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fail is if the bool type is larger than a word size. Unlikely, but
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handle it anyway for completeness. Assume a single threaded model since
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there is no atomic support in this case, and no barriers are required. */
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ret = expand_atomic_store (mem, const0_rtx, model, true);
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rtx ret = expand_atomic_store (mem, const0_rtx, model, true);
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if (!ret)
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emit_move_insn (mem, const0_rtx);
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return const0_rtx;
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@ -12457,9 +12457,7 @@ This built-in function implements an atomic exchange operation. It writes
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@var{val} into @code{*@var{ptr}}, and returns the previous contents of
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@code{*@var{ptr}}.
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The valid memory order variants are
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@code{__ATOMIC_RELAXED}, @code{__ATOMIC_SEQ_CST}, @code{__ATOMIC_ACQUIRE},
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@code{__ATOMIC_RELEASE}, and @code{__ATOMIC_ACQ_REL}.
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All memory order variants are valid.
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@end deftypefn
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@ -29,6 +29,7 @@
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#include "gimple.h"
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#include "tree-pass.h"
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#include "builtins.h"
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#include "diagnostic.h"
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#include "ssa.h"
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#include "gimple-pretty-print.h"
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#include "gimple-ssa-warn-access.h"
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@ -38,6 +39,8 @@
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#include "gimple-fold.h"
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#include "gimple-iterator.h"
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#include "langhooks.h"
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#include "memmodel.h"
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#include "target.h"
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#include "tree-dfa.h"
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#include "tree-ssa.h"
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#include "tree-cfg.h"
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@ -2103,6 +2106,8 @@ private:
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void maybe_check_dealloc_call (gcall *);
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void maybe_check_access_sizes (rdwr_map *, tree, tree, gimple *);
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bool maybe_warn_memmodel (gimple *, tree, tree, const unsigned char *);
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void check_atomic_memmodel (gimple *, tree, tree, const unsigned char *);
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/* A pointer_query object and its cache to store information about
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pointers and their targets in. */
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@ -2686,6 +2691,237 @@ pass_waccess::check_read_access (gimple *stmt, tree src,
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&data, m_ptr_qry.rvals);
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}
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/* Return true if memory model ORD is constant in the context of STMT and
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set *CSTVAL to the constant value. Otherwise return false. Warn for
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invalid ORD. */
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bool
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memmodel_to_uhwi (tree ord, gimple *stmt, unsigned HOST_WIDE_INT *cstval)
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{
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unsigned HOST_WIDE_INT val;
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if (TREE_CODE (ord) == INTEGER_CST)
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{
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if (!tree_fits_uhwi_p (ord))
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return false;
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val = tree_to_uhwi (ord);
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}
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else
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{
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/* Use the range query to determine constant values in the absence
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of constant proppagation (such as at -O0). */
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value_range rng;
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if (!get_range_query (cfun)->range_of_expr (rng, ord, stmt)
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|| !rng.constant_p ()
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|| !rng.singleton_p (&ord))
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return false;
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wide_int lob = rng.lower_bound ();
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if (!wi::fits_uhwi_p (lob))
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return false;
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val = lob.to_shwi ();
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}
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if (targetm.memmodel_check)
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/* This might warn for an invalid VAL but return a conservatively
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valid result. */
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val = targetm.memmodel_check (val);
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else if (val & ~MEMMODEL_MASK)
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{
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tree fndecl = gimple_call_fndecl (stmt);
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location_t loc = gimple_location (stmt);
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loc = expansion_point_location_if_in_system_header (loc);
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warning_at (loc, OPT_Winvalid_memory_model,
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"unknown architecture specifier in memory model "
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"%wi for %qD", val, fndecl);
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return false;
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}
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*cstval = val;
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return true;
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}
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/* Valid memory model for each set of atomic built-in functions. */
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struct memmodel_pair
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{
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memmodel modval;
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const char* modname;
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#define MEMMODEL_PAIR(val, str) \
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{ MEMMODEL_ ## val, "memory_order_" str }
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};
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/* Valid memory models in the order of increasing strength. */
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static const memmodel_pair memory_models[] =
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{ MEMMODEL_PAIR (RELAXED, "relaxed"),
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MEMMODEL_PAIR (SEQ_CST, "seq_cst"),
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MEMMODEL_PAIR (ACQUIRE, "acquire"),
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MEMMODEL_PAIR (CONSUME, "consume"),
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MEMMODEL_PAIR (RELEASE, "release"),
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MEMMODEL_PAIR (ACQ_REL, "acq_rel")
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};
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/* Return the name of the memory model VAL. */
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static const char*
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memmodel_name (unsigned HOST_WIDE_INT val)
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{
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val = memmodel_base (val);
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for (unsigned i = 0; i != sizeof memory_models / sizeof *memory_models; ++i)
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{
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if (val == memory_models[i].modval)
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return memory_models[i].modname;
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}
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return NULL;
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}
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/* Indices of valid MEMORY_MODELS above for corresponding atomic operations. */
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static const unsigned char load_models[] = { 0, 1, 2, 3, UCHAR_MAX };
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static const unsigned char store_models[] = { 0, 1, 4, UCHAR_MAX };
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static const unsigned char xchg_models[] = { 0, 1, 3, 4, 5, UCHAR_MAX };
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static const unsigned char flag_clr_models[] = { 0, 1, 4, UCHAR_MAX };
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static const unsigned char all_models[] = { 0, 1, 2, 3, 4, 5, UCHAR_MAX };
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/* Check the success memory model argument ORD_SUCS to the call STMT to
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an atomic function and warn if it's invalid. If nonnull, also check
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the failure memory model ORD_FAIL and warn if it's invalid. Return
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true if a warning has been issued. */
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bool
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pass_waccess::maybe_warn_memmodel (gimple *stmt, tree ord_sucs,
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tree ord_fail, const unsigned char *valid)
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{
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unsigned HOST_WIDE_INT sucs, fail = 0;
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if (!memmodel_to_uhwi (ord_sucs, stmt, &sucs)
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|| (ord_fail && !memmodel_to_uhwi (ord_fail, stmt, &fail)))
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return false;
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bool is_valid = false;
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if (valid)
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for (unsigned i = 0; valid[i] != UCHAR_MAX; ++i)
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{
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memmodel model = memory_models[valid[i]].modval;
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if (memmodel_base (sucs) == model)
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{
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is_valid = true;
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break;
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}
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}
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else
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is_valid = true;
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tree fndecl = gimple_call_fndecl (stmt);
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location_t loc = gimple_location (stmt);
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loc = expansion_point_location_if_in_system_header (loc);
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if (!is_valid)
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{
|
||||
bool warned = false;
|
||||
if (const char *modname = memmodel_name (sucs))
|
||||
warned = warning_at (loc, OPT_Winvalid_memory_model,
|
||||
"invalid memory model %qs for %qD",
|
||||
modname, fndecl);
|
||||
else
|
||||
warned = warning_at (loc, OPT_Winvalid_memory_model,
|
||||
"invalid memory model %wi for %qD",
|
||||
sucs, fndecl);
|
||||
|
||||
if (!warned)
|
||||
return false;
|
||||
|
||||
/* Print a note with the valid memory models. */
|
||||
pretty_printer pp;
|
||||
pp_show_color (&pp) = pp_show_color (global_dc->printer);
|
||||
for (unsigned i = 0; valid[i] != UCHAR_MAX; ++i)
|
||||
{
|
||||
const char *modname = memory_models[valid[i]].modname;
|
||||
pp_printf (&pp, "%s%<%s%>", i ? ", " : "", modname);
|
||||
}
|
||||
|
||||
inform (loc, "valid models are %s", pp_formatted_text (&pp));
|
||||
return true;
|
||||
}
|
||||
|
||||
if (!ord_fail)
|
||||
return false;
|
||||
|
||||
if (fail == MEMMODEL_RELEASE || fail == MEMMODEL_ACQ_REL)
|
||||
if (const char *failname = memmodel_name (fail))
|
||||
{
|
||||
/* If both memory model arguments are valid but their combination
|
||||
is not, use their names in the warning. */
|
||||
if (!warning_at (loc, OPT_Winvalid_memory_model,
|
||||
"invalid failure memory model %qs for %qD",
|
||||
failname, fndecl))
|
||||
return false;
|
||||
|
||||
inform (loc,
|
||||
"valid failure models are %qs, %qs, %qs, %qs",
|
||||
"memory_order_relaxed", "memory_order_seq_cst",
|
||||
"memory_order_acquire", "memory_order_consume");
|
||||
return true;
|
||||
}
|
||||
|
||||
if (memmodel_base (fail) <= memmodel_base (sucs))
|
||||
return false;
|
||||
|
||||
if (const char *sucsname = memmodel_name (sucs))
|
||||
if (const char *failname = memmodel_name (fail))
|
||||
{
|
||||
/* If both memory model arguments are valid but their combination
|
||||
is not, use their names in the warning. */
|
||||
if (!warning_at (loc, OPT_Winvalid_memory_model,
|
||||
"failure memory model %qs cannot be stronger "
|
||||
"than success memory model %qs for %qD",
|
||||
failname, sucsname, fndecl))
|
||||
return false;
|
||||
|
||||
/* Print a note with the valid failure memory models which are
|
||||
those with a value less than or equal to the success mode. */
|
||||
char buf[120];
|
||||
*buf = '\0';
|
||||
for (unsigned i = 0;
|
||||
memory_models[i].modval <= memmodel_base (sucs); ++i)
|
||||
{
|
||||
if (*buf)
|
||||
strcat (buf, ", ");
|
||||
|
||||
const char *modname = memory_models[valid[i]].modname;
|
||||
sprintf (buf + strlen (buf), "'%s'", modname);
|
||||
}
|
||||
|
||||
inform (loc, "valid models are %s", buf);
|
||||
return true;
|
||||
}
|
||||
|
||||
/* If either memory model argument value is invalid use the numerical
|
||||
value of both in the message. */
|
||||
return warning_at (loc, OPT_Winvalid_memory_model,
|
||||
"failure memory model %wi cannot be stronger "
|
||||
"than success memory model %wi for %qD",
|
||||
fail, sucs, fndecl);
|
||||
}
|
||||
|
||||
/* Wrapper for the above. */
|
||||
|
||||
void
|
||||
pass_waccess::check_atomic_memmodel (gimple *stmt, tree ord_sucs,
|
||||
tree ord_fail, const unsigned char *valid)
|
||||
{
|
||||
if (warning_suppressed_p (stmt, OPT_Winvalid_memory_model))
|
||||
return;
|
||||
|
||||
if (maybe_warn_memmodel (stmt, ord_sucs, ord_fail, valid))
|
||||
return;
|
||||
|
||||
suppress_warning (stmt, OPT_Winvalid_memory_model);
|
||||
}
|
||||
|
||||
/* Check a call STMT to an atomic or sync built-in. */
|
||||
|
||||
|
|
@ -2699,12 +2935,14 @@ pass_waccess::check_atomic_builtin (gcall *stmt)
|
|||
/* The size in bytes of the access by the function, and the number
|
||||
of the second argument to check (if any). */
|
||||
unsigned bytes = 0, arg2 = UINT_MAX;
|
||||
unsigned sucs_arg = UINT_MAX, fail_arg = UINT_MAX;
|
||||
/* Points to the array of indices of valid memory models. */
|
||||
const unsigned char *pvalid_models = NULL;
|
||||
|
||||
switch (DECL_FUNCTION_CODE (callee))
|
||||
{
|
||||
#define BUILTIN_ACCESS_SIZE_FNSPEC(N) \
|
||||
BUILT_IN_ATOMIC_LOAD_ ## N: \
|
||||
case BUILT_IN_SYNC_FETCH_AND_ADD_ ## N: \
|
||||
BUILT_IN_SYNC_FETCH_AND_ADD_ ## N: \
|
||||
case BUILT_IN_SYNC_FETCH_AND_SUB_ ## N: \
|
||||
case BUILT_IN_SYNC_FETCH_AND_OR_ ## N: \
|
||||
case BUILT_IN_SYNC_FETCH_AND_AND_ ## N: \
|
||||
|
|
@ -2720,8 +2958,16 @@ pass_waccess::check_atomic_builtin (gcall *stmt)
|
|||
case BUILT_IN_SYNC_BOOL_COMPARE_AND_SWAP_ ## N: \
|
||||
case BUILT_IN_SYNC_VAL_COMPARE_AND_SWAP_ ## N: \
|
||||
case BUILT_IN_SYNC_LOCK_RELEASE_ ## N: \
|
||||
case BUILT_IN_ATOMIC_EXCHANGE_ ## N: \
|
||||
bytes = N; \
|
||||
break; \
|
||||
case BUILT_IN_ATOMIC_LOAD_ ## N: \
|
||||
pvalid_models = load_models; \
|
||||
sucs_arg = 1; \
|
||||
/* FALLTHROUGH */ \
|
||||
case BUILT_IN_ATOMIC_STORE_ ## N: \
|
||||
if (!pvalid_models) \
|
||||
pvalid_models = store_models; \
|
||||
/* FALLTHROUGH */ \
|
||||
case BUILT_IN_ATOMIC_ADD_FETCH_ ## N: \
|
||||
case BUILT_IN_ATOMIC_SUB_FETCH_ ## N: \
|
||||
case BUILT_IN_ATOMIC_AND_FETCH_ ## N: \
|
||||
|
|
@ -2735,9 +2981,21 @@ pass_waccess::check_atomic_builtin (gcall *stmt)
|
|||
case BUILT_IN_ATOMIC_FETCH_OR_ ## N: \
|
||||
case BUILT_IN_ATOMIC_FETCH_XOR_ ## N: \
|
||||
bytes = N; \
|
||||
if (sucs_arg == UINT_MAX) \
|
||||
sucs_arg = 2; \
|
||||
if (!pvalid_models) \
|
||||
pvalid_models = all_models; \
|
||||
break; \
|
||||
case BUILT_IN_ATOMIC_EXCHANGE_ ## N: \
|
||||
bytes = N; \
|
||||
sucs_arg = 3; \
|
||||
pvalid_models = xchg_models; \
|
||||
break; \
|
||||
case BUILT_IN_ATOMIC_COMPARE_EXCHANGE_ ## N: \
|
||||
bytes = N; \
|
||||
sucs_arg = 4; \
|
||||
fail_arg = 5; \
|
||||
pvalid_models = all_models; \
|
||||
arg2 = 1
|
||||
|
||||
case BUILTIN_ACCESS_SIZE_FNSPEC (1);
|
||||
|
|
@ -2751,10 +3009,28 @@ pass_waccess::check_atomic_builtin (gcall *stmt)
|
|||
case BUILTIN_ACCESS_SIZE_FNSPEC (16);
|
||||
break;
|
||||
|
||||
case BUILT_IN_ATOMIC_CLEAR:
|
||||
sucs_arg = 1;
|
||||
pvalid_models = flag_clr_models;
|
||||
break;
|
||||
|
||||
default:
|
||||
return false;
|
||||
}
|
||||
|
||||
unsigned nargs = gimple_call_num_args (stmt);
|
||||
if (sucs_arg < nargs)
|
||||
{
|
||||
tree ord_sucs = gimple_call_arg (stmt, sucs_arg);
|
||||
tree ord_fail = NULL_TREE;
|
||||
if (fail_arg < nargs)
|
||||
ord_fail = gimple_call_arg (stmt, fail_arg);
|
||||
check_atomic_memmodel (stmt, ord_sucs, ord_fail, pvalid_models);
|
||||
}
|
||||
|
||||
if (!bytes)
|
||||
return true;
|
||||
|
||||
tree size = build_int_cstu (sizetype, bytes);
|
||||
tree dst = gimple_call_arg (stmt, 0);
|
||||
check_memop_access (stmt, dst, NULL_TREE, size);
|
||||
|
|
|
|||
21
gcc/input.c
21
gcc/input.c
|
|
@ -986,10 +986,11 @@ linemap_client_expand_location_to_spelling_point (location_t loc,
|
|||
}
|
||||
|
||||
|
||||
/* If LOCATION is in a system header and if it is a virtual location for
|
||||
a token coming from the expansion of a macro, unwind it to the
|
||||
location of the expansion point of the macro. Otherwise, just return
|
||||
LOCATION.
|
||||
/* If LOCATION is in a system header and if it is a virtual location
|
||||
for a token coming from the expansion of a macro, unwind it to
|
||||
the location of the expansion point of the macro. If the expansion
|
||||
point is also in a system header return the original LOCATION.
|
||||
Otherwise, return the location of the expansion point.
|
||||
|
||||
This is used for instance when we want to emit diagnostics about a
|
||||
token that may be located in a macro that is itself defined in a
|
||||
|
|
@ -1001,11 +1002,13 @@ linemap_client_expand_location_to_spelling_point (location_t loc,
|
|||
location_t
|
||||
expansion_point_location_if_in_system_header (location_t location)
|
||||
{
|
||||
if (in_system_header_at (location))
|
||||
location = linemap_resolve_location (line_table, location,
|
||||
LRK_MACRO_EXPANSION_POINT,
|
||||
NULL);
|
||||
return location;
|
||||
if (!in_system_header_at (location))
|
||||
return location;
|
||||
|
||||
location_t xloc = linemap_resolve_location (line_table, location,
|
||||
LRK_MACRO_EXPANSION_POINT,
|
||||
NULL);
|
||||
return in_system_header_at (xloc) ? location : xloc;
|
||||
}
|
||||
|
||||
/* If LOCATION is a virtual location for a token coming from the expansion
|
||||
|
|
|
|||
|
|
@ -0,0 +1,239 @@
|
|||
/* PR middle-end/99612 - Missing warning on incorrect memory order without
|
||||
-Wsystem-headers
|
||||
Verify that constants are propagated through calls to inline functions
|
||||
even at -O0.
|
||||
Also verify that the informational notes after each warning mention
|
||||
the valid memore models for each function.
|
||||
{ dg-do compile }
|
||||
{ dg-options "-O0 -ftrack-macro-expansion=0" } */
|
||||
|
||||
#if !__cplusplus
|
||||
# define bool _Bool
|
||||
#endif
|
||||
|
||||
extern int ei;
|
||||
|
||||
static __attribute__ ((always_inline)) inline
|
||||
int retval (int val)
|
||||
{
|
||||
return val;
|
||||
}
|
||||
|
||||
void test_load (int *pi)
|
||||
{
|
||||
int relaxed = retval (__ATOMIC_RELAXED);
|
||||
*pi++ = __atomic_load_n (&ei, relaxed);
|
||||
|
||||
int consume = retval (__ATOMIC_CONSUME);
|
||||
*pi++ = __atomic_load_n (&ei, consume);
|
||||
|
||||
int acquire = retval (__ATOMIC_ACQUIRE);
|
||||
*pi++ = __atomic_load_n (&ei, acquire);
|
||||
|
||||
int release = retval (__ATOMIC_RELEASE);
|
||||
*pi++ = __atomic_load_n (&ei, release); // { dg-warning "invalid memory model 'memory_order_release'" }
|
||||
// { dg-message "valid models are 'memory_order_relaxed', 'memory_order_seq_cst', 'memory_order_acquire', 'memory_order_consume'" "note" { target *-*-* } .-1 }
|
||||
|
||||
int acq_rel = retval (__ATOMIC_ACQ_REL);
|
||||
*pi++ = __atomic_load_n (&ei, acq_rel); // { dg-warning "invalid memory model 'memory_order_acq_rel'" }
|
||||
|
||||
int seq_cst = retval (__ATOMIC_SEQ_CST);
|
||||
*pi++ = __atomic_load_n (&ei, seq_cst);
|
||||
|
||||
/* Verify a nonconstant range. */
|
||||
int r0_1 = *pi++;
|
||||
if (r0_1 < 0 || 1 < r0_1)
|
||||
r0_1 = 0;
|
||||
*pi++ = __atomic_load_n (&ei, r0_1);
|
||||
|
||||
/* Verify an unbounded range. */
|
||||
int unknown = *pi++;
|
||||
*pi++ = __atomic_load_n (&ei, unknown);
|
||||
}
|
||||
|
||||
|
||||
void test_store (int *pi, int x)
|
||||
{
|
||||
int relaxed = retval (__ATOMIC_RELAXED);
|
||||
__atomic_store_n (pi++, x, relaxed);
|
||||
|
||||
int consume = retval (__ATOMIC_CONSUME);
|
||||
__atomic_store_n (pi++, x, consume); // { dg-warning "invalid memory model 'memory_order_consume'" }
|
||||
// { dg-message "valid models are 'memory_order_relaxed', 'memory_order_seq_cst', 'memory_order_release'" "note" { target *-*-* } .-1 }
|
||||
|
||||
int acquire = retval (__ATOMIC_ACQUIRE);
|
||||
__atomic_store_n (pi++, x, acquire); // { dg-warning "invalid memory model 'memory_order_acquire'" }
|
||||
|
||||
int release = retval (__ATOMIC_RELEASE);
|
||||
__atomic_store_n (pi++, x, release);
|
||||
|
||||
int acq_rel = retval (__ATOMIC_ACQ_REL);
|
||||
__atomic_store_n (pi++, x, acq_rel); // { dg-warning "invalid memory model 'memory_order_acq_rel'" }
|
||||
|
||||
int seq_cst = retval (__ATOMIC_SEQ_CST);
|
||||
__atomic_store_n (pi++, x, seq_cst);
|
||||
|
||||
int unknown = *pi++;
|
||||
__atomic_store_n (pi++, x, unknown);
|
||||
}
|
||||
|
||||
|
||||
/* All memory models are valid. */
|
||||
|
||||
void test_exchange (int *pi, int x)
|
||||
{
|
||||
int relaxed = retval (__ATOMIC_RELAXED);
|
||||
__atomic_exchange_n (pi++, x, relaxed);
|
||||
|
||||
int consume = retval (__ATOMIC_CONSUME);
|
||||
__atomic_exchange_n (pi++, x, consume);
|
||||
|
||||
int acquire = retval (__ATOMIC_ACQUIRE);
|
||||
__atomic_exchange_n (pi++, x, acquire);
|
||||
|
||||
int release = retval (__ATOMIC_RELEASE);
|
||||
__atomic_exchange_n (pi++, x, release);
|
||||
|
||||
int acq_rel = retval (__ATOMIC_ACQ_REL);
|
||||
__atomic_exchange_n (pi++, x, acq_rel);
|
||||
|
||||
int seq_cst = retval (__ATOMIC_SEQ_CST);
|
||||
__atomic_exchange_n (pi++, x, seq_cst);
|
||||
|
||||
int unknown = *pi++;
|
||||
__atomic_exchange_n (pi++, x, unknown);
|
||||
}
|
||||
|
||||
|
||||
void test_compare_exchange (int *pi, int *pj, bool weak)
|
||||
{
|
||||
#define cmpxchg(x, expect, desire, sucs_ord, fail_ord) \
|
||||
__atomic_compare_exchange_n (x, expect, desire, weak, sucs_ord, fail_ord)
|
||||
|
||||
int relaxed = retval (__ATOMIC_RELAXED);
|
||||
cmpxchg (&ei, pi++, *pj++, relaxed, relaxed);
|
||||
|
||||
int consume = retval (__ATOMIC_CONSUME);
|
||||
cmpxchg (&ei, pi++, *pj++, relaxed, consume); // { dg-warning "failure memory model 'memory_order_consume' cannot be stronger than success memory model 'memory_order_relaxed'" }
|
||||
|
||||
int acquire = retval (__ATOMIC_ACQUIRE);
|
||||
cmpxchg (&ei, pi++, *pj++, relaxed, acquire); // { dg-warning "failure memory model 'memory_order_acquire' cannot be stronger than success memory model 'memory_order_relaxed'" }
|
||||
|
||||
int release = retval (__ATOMIC_RELEASE);
|
||||
cmpxchg (&ei, pi++, *pj++, relaxed, release); // { dg-warning "invalid failure memory model 'memory_order_release'" }
|
||||
|
||||
int acq_rel = retval (__ATOMIC_ACQ_REL);
|
||||
cmpxchg (&ei, pi++, *pj++, relaxed, acq_rel); // { dg-warning "invalid failure memory model 'memory_order_acq_rel'" }
|
||||
|
||||
int seq_cst = retval (__ATOMIC_SEQ_CST);
|
||||
cmpxchg (&ei, pi++, *pj++, relaxed, seq_cst); // { dg-warning "failure memory model 'memory_order_seq_cst' cannot be stronger than success memory model 'memory_order_relaxed'" }
|
||||
|
||||
|
||||
cmpxchg (&ei, pi++, *pj++, consume, relaxed);
|
||||
cmpxchg (&ei, pi++, *pj++, consume, consume);
|
||||
cmpxchg (&ei, pi++, *pj++, consume, acquire); // { dg-warning "failure memory model 'memory_order_acquire' cannot be stronger than success memory model 'memory_order_consume'" }
|
||||
cmpxchg (&ei, pi++, *pj++, consume, release); // { dg-warning "invalid failure memory model 'memory_order_release'" }
|
||||
cmpxchg (&ei, pi++, *pj++, consume, acq_rel); // { dg-warning "invalid failure memory model 'memory_order_acq_rel'" }
|
||||
cmpxchg (&ei, pi++, *pj++, consume, seq_cst); // { dg-warning "failure memory model 'memory_order_seq_cst' cannot be stronger than success memory model 'memory_order_consume'" }
|
||||
|
||||
cmpxchg (&ei, pi++, *pj++, acquire, relaxed);
|
||||
cmpxchg (&ei, pi++, *pj++, acquire, consume);
|
||||
cmpxchg (&ei, pi++, *pj++, acquire, acquire);
|
||||
cmpxchg (&ei, pi++, *pj++, acquire, release); // { dg-warning "invalid failure memory model 'memory_order_release'" }
|
||||
cmpxchg (&ei, pi++, *pj++, acquire, acq_rel); // { dg-warning "invalid failure memory model 'memory_order_acq_rel'" }
|
||||
cmpxchg (&ei, pi++, *pj++, acquire, seq_cst); // { dg-warning "failure memory model 'memory_order_seq_cst' cannot be stronger than success memory model 'memory_order_acquire'" }
|
||||
|
||||
cmpxchg (&ei, pi++, *pj++, release, relaxed);
|
||||
cmpxchg (&ei, pi++, *pj++, release, consume);
|
||||
cmpxchg (&ei, pi++, *pj++, release, acquire);
|
||||
cmpxchg (&ei, pi++, *pj++, release, release); // { dg-warning "invalid failure memory model 'memory_order_release'" }
|
||||
cmpxchg (&ei, pi++, *pj++, release, acq_rel); // { dg-warning "invalid failure memory model 'memory_order_acq_rel'" }
|
||||
cmpxchg (&ei, pi++, *pj++, release, seq_cst); // { dg-warning "failure memory model 'memory_order_seq_cst' cannot be stronger than success memory model 'memory_order_release'" }
|
||||
|
||||
cmpxchg (&ei, pi++, *pj++, acq_rel, relaxed);
|
||||
cmpxchg (&ei, pi++, *pj++, acq_rel, consume);
|
||||
cmpxchg (&ei, pi++, *pj++, acq_rel, acquire);
|
||||
cmpxchg (&ei, pi++, *pj++, acq_rel, release); // { dg-warning "invalid failure memory model 'memory_order_release'" }
|
||||
cmpxchg (&ei, pi++, *pj++, acq_rel, acq_rel); // { dg-warning "invalid failure memory model 'memory_order_acq_rel'" }
|
||||
cmpxchg (&ei, pi++, *pj++, acq_rel, seq_cst); // { dg-warning "failure memory model 'memory_order_seq_cst' cannot be stronger than success memory model 'memory_order_acq_rel'" }
|
||||
|
||||
cmpxchg (&ei, pi++, *pj++, seq_cst, relaxed);
|
||||
cmpxchg (&ei, pi++, *pj++, seq_cst, consume);
|
||||
cmpxchg (&ei, pi++, *pj++, seq_cst, acquire);
|
||||
cmpxchg (&ei, pi++, *pj++, seq_cst, release); // { dg-warning "invalid failure memory model 'memory_order_release'" }
|
||||
cmpxchg (&ei, pi++, *pj++, seq_cst, acq_rel); // { dg-warning "invalid failure memory model 'memory_order_acq_rel'" }
|
||||
cmpxchg (&ei, pi++, *pj++, seq_cst, seq_cst);
|
||||
|
||||
int unknown = *pi++;
|
||||
cmpxchg (&ei, pi++, *pj++, unknown, seq_cst);
|
||||
cmpxchg (&ei, pi++, *pj++, relaxed, unknown);
|
||||
}
|
||||
|
||||
|
||||
/* All memory models are valid. */
|
||||
|
||||
void test_add_fetch (unsigned *pi, unsigned x)
|
||||
{
|
||||
int relaxed = retval (__ATOMIC_RELAXED);
|
||||
__atomic_add_fetch (pi++, x, relaxed);
|
||||
|
||||
int consume = retval (__ATOMIC_CONSUME);
|
||||
__atomic_add_fetch (pi++, x, consume);
|
||||
|
||||
int acquire = retval (__ATOMIC_ACQUIRE);
|
||||
__atomic_add_fetch (pi++, x, acquire);
|
||||
|
||||
int release = retval (__ATOMIC_RELEASE);
|
||||
__atomic_add_fetch (pi++, x, release);
|
||||
|
||||
int acq_rel = retval (__ATOMIC_ACQ_REL);
|
||||
__atomic_add_fetch (pi++, x, acq_rel);
|
||||
|
||||
int seq_cst = retval (__ATOMIC_SEQ_CST);
|
||||
__atomic_add_fetch (pi++, x, seq_cst);
|
||||
|
||||
int invalid;
|
||||
if (x & 1)
|
||||
{
|
||||
invalid = retval (123);
|
||||
__atomic_add_fetch (pi++, x, invalid); // { dg-warning "invalid memory model 123 for '\(unsigned int \)?__atomic_add_fetch" }
|
||||
}
|
||||
else
|
||||
{
|
||||
invalid = retval (456);
|
||||
__atomic_add_fetch (pi++, x, invalid); // { dg-warning "invalid memory model 456 for '\(unsigned int \)?__atomic_add_fetch" }
|
||||
}
|
||||
}
|
||||
|
||||
void test_sub_fetch (unsigned *pi, unsigned x)
|
||||
{
|
||||
int relaxed = retval (__ATOMIC_RELAXED);
|
||||
__atomic_sub_fetch (pi++, x, relaxed);
|
||||
|
||||
int consume = retval (__ATOMIC_CONSUME);
|
||||
__atomic_sub_fetch (pi++, x, consume);
|
||||
|
||||
int acquire = retval (__ATOMIC_ACQUIRE);
|
||||
__atomic_sub_fetch (pi++, x, acquire);
|
||||
|
||||
int release = retval (__ATOMIC_RELEASE);
|
||||
__atomic_sub_fetch (pi++, x, release);
|
||||
|
||||
int acq_rel = retval (__ATOMIC_ACQ_REL);
|
||||
__atomic_sub_fetch (pi++, x, acq_rel);
|
||||
|
||||
int seq_cst = retval (__ATOMIC_SEQ_CST);
|
||||
__atomic_sub_fetch (pi++, x, seq_cst);
|
||||
|
||||
int invalid;
|
||||
if (x & 1)
|
||||
{
|
||||
invalid = retval (123);
|
||||
__atomic_sub_fetch (pi++, x, invalid); // { dg-warning "invalid memory model 123 for '\(unsigned int \)?__atomic_sub_fetch" }
|
||||
}
|
||||
else
|
||||
{
|
||||
invalid = retval (456);
|
||||
__atomic_sub_fetch (pi++, x, invalid); // { dg-warning "invalid memory model 456 for '\(unsigned int \)?__atomic_sub_fetch" }
|
||||
}
|
||||
}
|
||||
|
|
@ -1,10 +1,13 @@
|
|||
/* PR c++/83059 */
|
||||
/* PR c++/83059 - ICE on invalid C++ code: in tree_to_uhwi, at tree.c:6633 */
|
||||
/* { dg-do compile } */
|
||||
|
||||
void
|
||||
foo (int *p, int *q, int *r)
|
||||
{
|
||||
__atomic_compare_exchange (p, q, r, 0, 0, -1); /* { dg-warning "invalid memory model argument 6" } */
|
||||
/* { dg-warning "unknown architecture specifi" "" { target *-*-* } .-1 } */
|
||||
/* { dg-warning "failure memory model cannot be stronger than success memory model" "" { target *-*-* } .-2 } */
|
||||
}
|
||||
|
||||
/* The test triggers several distinct instance of the warning. Prune
|
||||
them out; they're not relevant to its main purpose -- to verify
|
||||
there's no ICE.
|
||||
{ dg-prune-output "-Winvalid-memory-model" } */
|
||||
|
|
|
|||
|
|
@ -0,0 +1,79 @@
|
|||
/* PR middle-end/99612 - Missing warning on incorrect memory order without
|
||||
-Wsystem-headers
|
||||
Verify warnings for atomic functions with optimization.
|
||||
{ dg-do compile { target c++11 } }
|
||||
{ dg-options "-O1" } */
|
||||
|
||||
#include <atomic>
|
||||
|
||||
static const std::memory_order relaxed = std::memory_order_relaxed;
|
||||
static const std::memory_order consume = std::memory_order_consume;
|
||||
static const std::memory_order acquire = std::memory_order_acquire;
|
||||
static const std::memory_order release = std::memory_order_release;
|
||||
static const std::memory_order acq_rel = std::memory_order_acq_rel;
|
||||
static const std::memory_order seq_cst = std::memory_order_seq_cst;
|
||||
|
||||
extern std::atomic<int> eai;
|
||||
|
||||
void test_load (int *pi)
|
||||
{
|
||||
*pi++ = eai.load (relaxed);
|
||||
*pi++ = eai.load (consume);
|
||||
*pi++ = eai.load (acquire);
|
||||
*pi++ = eai.load (release); // warning
|
||||
*pi++ = eai.load (acq_rel); // warning
|
||||
*pi++ = eai.load (seq_cst);
|
||||
}
|
||||
|
||||
/* { dg-regexp " *inlined from \[^\n\r\]+.C:23:.*" "" { target *-*-* } 0 }
|
||||
{ dg-regexp " *inlined from \[^\n\r\]+.C:24:.*" "" { target *-*-* } 0 }
|
||||
{ dg-warning "__atomic_load\[^\n\r\]* \\\[-Winvalid-memory-model" "warning" { target *-*-* } 0 } */
|
||||
|
||||
|
||||
void test_store (int *pi)
|
||||
{
|
||||
eai.store (*pi++, relaxed);
|
||||
eai.store (*pi++, consume); // warning
|
||||
eai.store (*pi++, acquire); // warning
|
||||
eai.store (*pi++, release);
|
||||
eai.store (*pi++, acq_rel); // warning
|
||||
eai.store (*pi++, seq_cst);
|
||||
}
|
||||
|
||||
/* { dg-regexp " *inlined from \[^\n\r\]+.C:36:.*" "" { target *-*-* } 0 }
|
||||
{ dg-regexp " *inlined from \[^\n\r\]+.C:37:.*" "" { target *-*-* } 0 }
|
||||
{ dg-regexp " *inlined from \[^\n\r\]+.C:39:.*" "" { target *-*-* } 0 }
|
||||
{ dg-warning "__atomic_store\[^\n\r]* \\\[-Winvalid-memory-model" "warning" { target *-*-* } 0 } */
|
||||
|
||||
|
||||
void test_exchange (const int *pi)
|
||||
{
|
||||
eai.exchange (*pi++, relaxed);
|
||||
eai.exchange (*pi++, consume);
|
||||
eai.exchange (*pi++, acquire);
|
||||
eai.exchange (*pi++, release);
|
||||
eai.exchange (*pi++, acq_rel);
|
||||
eai.exchange (*pi++, seq_cst);
|
||||
}
|
||||
|
||||
|
||||
void test_compare_exchange (int *pi, int *pj)
|
||||
{
|
||||
#define cmpxchg(x, y, z, o1, o2) \
|
||||
std::atomic_compare_exchange_weak_explicit (x, y, z, o1, o2)
|
||||
|
||||
cmpxchg (&eai, pi++, *pj++, relaxed, relaxed);
|
||||
cmpxchg (&eai, pi++, *pj++, relaxed, consume); // warning
|
||||
cmpxchg (&eai, pi++, *pj++, relaxed, acquire); // warning
|
||||
cmpxchg (&eai, pi++, *pj++, relaxed, release); // warning
|
||||
cmpxchg (&eai, pi++, *pj++, relaxed, acq_rel); // warning
|
||||
cmpxchg (&eai, pi++, *pj++, relaxed, seq_cst); // warning
|
||||
cmpxchg (&eai, pi++, *pj++, relaxed, relaxed);
|
||||
|
||||
/* { dg-regexp " *inlined from \[^\n\r\]+.C:66:.*" "" { target *-*-* } 0 }
|
||||
{ dg-regexp " *inlined from \[^\n\r\]+.C:67:.*" "" { target *-*-* } 0 }
|
||||
{ dg-regexp " *inlined from \[^\n\r\]+.C:68:.*" "" { target *-*-* } 0 }
|
||||
{ dg-regexp " *inlined from \[^\n\r\]+.C:69:.*" "" { target *-*-* } 0 }
|
||||
{ dg-regexp " *inlined from \[^\n\r\]+.C:70:.*" "" { target *-*-* } 0 }
|
||||
{ dg-warning "__atomic_compare_exchange\[^\n\r\]* \\\[-Winvalid-memory-model" "cmpxchg 1" { target *-*-* } 0 } */
|
||||
}
|
||||
|
|
@ -0,0 +1,84 @@
|
|||
/* PR middle-end/99612 - Missing warning on incorrect memory order without
|
||||
-Wsystem-headers
|
||||
Verify warings for basic atomic functions with no optimization.
|
||||
{ dg-do compile { target c++11 } }
|
||||
{ dg-options "-O0 -Wall" } */
|
||||
|
||||
#include <atomic>
|
||||
|
||||
static const std::memory_order relaxed = std::memory_order_relaxed;
|
||||
static const std::memory_order consume = std::memory_order_consume;
|
||||
static const std::memory_order acquire = std::memory_order_acquire;
|
||||
static const std::memory_order release = std::memory_order_release;
|
||||
static const std::memory_order acq_rel = std::memory_order_acq_rel;
|
||||
static const std::memory_order seq_cst = std::memory_order_seq_cst;
|
||||
|
||||
extern std::atomic<int> eai;
|
||||
|
||||
void test_load (int *pi)
|
||||
{
|
||||
*pi++ = eai.load (relaxed);
|
||||
*pi++ = eai.load (consume);
|
||||
*pi++ = eai.load (acquire);
|
||||
*pi++ = eai.load (release); // warning
|
||||
*pi++ = eai.load (acq_rel); // warning
|
||||
*pi++ = eai.load (seq_cst);
|
||||
}
|
||||
|
||||
/* { dg-regexp " *inlined from \[^\n\r\]+.C:23:.*" "" { target *-*-* } 0 }
|
||||
{ dg-regexp " *inlined from \[^\n\r\]+.C:24:.*" "" { target *-*-* } 0 }
|
||||
{ dg-warning "__atomic_load\[^\n\r\]* \\\[-Winvalid-memory-model" "warning" { target *-*-* } 0 } */
|
||||
|
||||
|
||||
void test_store (int *pi)
|
||||
{
|
||||
eai.store (*pi++, relaxed);
|
||||
eai.store (*pi++, consume); // warning
|
||||
eai.store (*pi++, acquire); // warning
|
||||
eai.store (*pi++, release);
|
||||
eai.store (*pi++, acq_rel); // warning
|
||||
eai.store (*pi++, seq_cst);
|
||||
}
|
||||
|
||||
/* { dg-regexp " *inlined from \[^\n\r\]+.C:36:.*" "" { target *-*-* } 0 }
|
||||
{ dg-regexp " *inlined from \[^\n\r\]+.C:37:.*" "" { target *-*-* } 0 }
|
||||
{ dg-regexp " *inlined from \[^\n\r\]+.C:39:.*" "" { target *-*-* } 0 }
|
||||
{ dg-warning "__atomic_store\[^\n\r]* \\\[-Winvalid-memory-model" "warning" { target *-*-* } 0 } */
|
||||
|
||||
|
||||
void test_exchange (const int *pi)
|
||||
{
|
||||
eai.exchange (*pi++, relaxed);
|
||||
eai.exchange (*pi++, consume);
|
||||
eai.exchange (*pi++, acquire);
|
||||
eai.exchange (*pi++, release);
|
||||
eai.exchange (*pi++, acq_rel);
|
||||
eai.exchange (*pi++, seq_cst);
|
||||
}
|
||||
|
||||
/* The following tests fail because std::atomic_compare_exchange_weak_explicit
|
||||
is not declared with attribute always_inline (like the member functions
|
||||
above are). */
|
||||
|
||||
void test_compare_exchange (int *pi, int *pj)
|
||||
{
|
||||
#define cmpxchg(x, y, z, o1, o2) \
|
||||
std::atomic_compare_exchange_weak_explicit (x, y, z, o1, o2)
|
||||
|
||||
cmpxchg (&eai, pi++, *pj++, relaxed, relaxed);
|
||||
cmpxchg (&eai, pi++, *pj++, relaxed, consume); // warning
|
||||
cmpxchg (&eai, pi++, *pj++, relaxed, acquire); // warning
|
||||
cmpxchg (&eai, pi++, *pj++, relaxed, release); // warning
|
||||
cmpxchg (&eai, pi++, *pj++, relaxed, acq_rel); // warning
|
||||
cmpxchg (&eai, pi++, *pj++, relaxed, seq_cst); // warning
|
||||
cmpxchg (&eai, pi++, *pj++, relaxed, relaxed);
|
||||
|
||||
/* HACK: xfail doesn't seem to work for the dg-regexp directives below,
|
||||
so disable them by prepending an X to their names...
|
||||
{ Xdg-regexp " *inlined from \[^\n\r\]+.C:66:.*" "" { xfail *-*-* } 0 }
|
||||
{ Xdg-regexp " *inlined from \[^\n\r\]+.C:67:.*" "" { xfail *-*-* } 0 }
|
||||
{ Xdg-regexp " *inlined from \[^\n\r\]+.C:68:.*" "" { xfail *-*-* } 0 }
|
||||
{ Xdg-regexp " *inlined from \[^\n\r\]+.C:69:.*" "" { xfail *-*-* } 0 }
|
||||
{ Xdg-regexp " *inlined from \[^\n\r\]+.C:70:.*" "" { xfail *-*-* } 0 }
|
||||
{ dg-warning "__atomic_compare_exchange\[^\n\r\]* \\\[-Winvalid-memory-model" "cmpxchg 1" { xfail *-*-* } 0 } */
|
||||
}
|
||||
|
|
@ -38,13 +38,13 @@ exchange (atomic_int *i)
|
|||
{
|
||||
int r;
|
||||
|
||||
atomic_compare_exchange_strong_explicit (i, &r, 0, memory_order_seq_cst, memory_order_release); /* { dg-warning "invalid failure memory" } */
|
||||
atomic_compare_exchange_strong_explicit (i, &r, 0, memory_order_seq_cst, memory_order_acq_rel); /* { dg-warning "invalid failure memory" } */
|
||||
atomic_compare_exchange_strong_explicit (i, &r, 0, memory_order_relaxed, memory_order_consume); /* { dg-warning "failure memory model cannot be stronger" } */
|
||||
atomic_compare_exchange_strong_explicit (i, &r, 0, memory_order_seq_cst, memory_order_release); /* { dg-warning "invalid failure memory model 'memory_order_release'" } */
|
||||
atomic_compare_exchange_strong_explicit (i, &r, 0, memory_order_seq_cst, memory_order_acq_rel); /* { dg-warning "invalid failure memory model 'memory_order_acq_rel'" } */
|
||||
atomic_compare_exchange_strong_explicit (i, &r, 0, memory_order_relaxed, memory_order_consume); /* { dg-warning "failure memory model 'memory_order_consume' cannot be stronger than success memory model 'memory_order_relaxed'" } */
|
||||
|
||||
atomic_compare_exchange_weak_explicit (i, &r, 0, memory_order_seq_cst, memory_order_release); /* { dg-warning "invalid failure memory" } */
|
||||
atomic_compare_exchange_weak_explicit (i, &r, 0, memory_order_seq_cst, memory_order_acq_rel); /* { dg-warning "invalid failure memory" } */
|
||||
atomic_compare_exchange_weak_explicit (i, &r, 0, memory_order_relaxed, memory_order_consume); /* { dg-warning "failure memory model cannot be stronger" } */
|
||||
atomic_compare_exchange_weak_explicit (i, &r, 0, memory_order_seq_cst, memory_order_release); /* { dg-warning "invalid failure memory model 'memory_order_release'" } */
|
||||
atomic_compare_exchange_weak_explicit (i, &r, 0, memory_order_seq_cst, memory_order_acq_rel); /* { dg-warning "invalid failure memory model 'memory_order_acq_rel'" } */
|
||||
atomic_compare_exchange_weak_explicit (i, &r, 0, memory_order_relaxed, memory_order_consume); /* { dg-warning "failure memory model 'memory_order_consume' cannot be stronger than success memory model 'memory_order_relaxed'" } */
|
||||
}
|
||||
|
||||
/* atomic_flag_clear():
|
||||
|
|
|
|||
|
|
@ -13,7 +13,7 @@ bool x;
|
|||
int
|
||||
main ()
|
||||
{
|
||||
__atomic_compare_exchange_n (&i, &e, 1, 0, __ATOMIC_RELAXED, __ATOMIC_SEQ_CST); /* { dg-warning "failure memory model cannot be stronger" } */
|
||||
__atomic_compare_exchange_n (&i, &e, 1, 0, __ATOMIC_RELAXED, __ATOMIC_SEQ_CST); /* { dg-warning "failure memory model 'memory_order_seq_cst' cannot be stronger" } */
|
||||
__atomic_compare_exchange_n (&i, &e, 1, 0, __ATOMIC_SEQ_CST, __ATOMIC_RELEASE); /* { dg-warning "invalid failure memory" } */
|
||||
__atomic_compare_exchange_n (&i, &e, 1, 1, __ATOMIC_SEQ_CST, __ATOMIC_ACQ_REL); /* { dg-warning "invalid failure memory" } */
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue