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add note to disabled tests, improve comptime cmpxchg

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Vexu
2020-03-12 22:42:01 +02:00
parent 6dde769279
commit 71d776c3be
4 changed files with 23 additions and 20 deletions
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18
src/ir.cpp
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@@ -25215,21 +25215,25 @@ static IrInstGen *ir_analyze_instruction_cmpxchg(IrAnalyze *ira, IrInstSrcCmpxch
if (ptr_val == nullptr)
return ira->codegen->invalid_inst_gen;
ZigValue *op1_val = const_ptr_pointee(ira, ira->codegen, ptr_val, instruction->base.base.source_node);
if (op1_val == nullptr)
ZigValue *stored_val = const_ptr_pointee(ira, ira->codegen, ptr_val, instruction->base.base.source_node);
if (stored_val == nullptr)
return ira->codegen->invalid_inst_gen;
ZigValue *op2_val = ir_resolve_const(ira, casted_cmp_value, UndefBad);
if (op2_val == nullptr)
ZigValue *expected_val = ir_resolve_const(ira, casted_cmp_value, UndefBad);
if (expected_val == nullptr)
return ira->codegen->invalid_inst_gen;
bool eql = const_values_equal(ira->codegen, op1_val, op2_val);
ZigValue *new_val = ir_resolve_const(ira, casted_new_value, UndefBad);
if (new_val == nullptr)
return ira->codegen->invalid_inst_gen;
bool eql = const_values_equal(ira->codegen, stored_val, expected_val);
IrInstGen *result = ir_const(ira, &instruction->base.base, result_type);
if (eql) {
ir_analyze_store_ptr(ira, &instruction->base.base, casted_ptr, casted_new_value, false);
copy_const_val(ira->codegen, stored_val, new_val);
set_optional_value_to_null(result->value);
} else {
set_optional_payload(result->value, op1_val);
set_optional_payload(result->value, stored_val);
}
return result;
}