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IR: better array len instruction

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reference the "len" field directly instead of looking it up by
name since we already know exactly where the field metadata is
This commit is contained in:
Andrew Kelley 2016-12-08 02:15:10 -05:00
parent d4a93dbac5
commit 0ab953acb2
1 changed files with 1 additions and 2 deletions
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3
src/ir.cpp
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@ -6572,8 +6572,7 @@ static TypeTableEntry *ir_analyze_instruction_array_len(IrAnalyze *ira,
len_val->data.x_bignum.data.x_uint, depends_on_compile_var);
}
}
TypeStructField *field = find_struct_type_field(canon_type, buf_create_from_str("len"));
assert(field);
TypeStructField *field = &canon_type->data.structure.fields[slice_len_index];
IrInstruction *len_ptr = ir_build_struct_field_ptr(&ira->new_irb, array_len_instruction->base.scope,
array_len_instruction->base.source_node, array_value, field);
len_ptr->type_entry = get_pointer_to_type(ira->codegen, ira->codegen->builtin_types.entry_usize, true);