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fix runtime slice of pointer not setting length

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Andrew Kelley 2020-03-17 23:32:03 -04:00
parent 4435b05b6b
commit 72a261b4d3
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1 changed files with 7 additions and 0 deletions
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7
src/codegen.cpp
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@ -5530,9 +5530,16 @@ static LLVMValueRef ir_render_slice(CodeGen *g, IrExecutableGen *executable, IrI
}
LLVMValueRef tmp_struct_ptr = ir_llvm_value(g, instruction->result_loc);
size_t gen_ptr_index = result_type->data.structure.fields[slice_ptr_index]->gen_index;
LLVMValueRef ptr_field_ptr = LLVMBuildStructGEP(g->builder, tmp_struct_ptr, gen_ptr_index, "");
gen_store_untyped(g, slice_start_ptr, ptr_field_ptr, 0, false);
size_t gen_len_index = result_type->data.structure.fields[slice_len_index]->gen_index;
LLVMValueRef len_field_ptr = LLVMBuildStructGEP(g->builder, tmp_struct_ptr, gen_len_index, "");
LLVMValueRef len_value = LLVMBuildNSWSub(g->builder, end_val, start_val, "");
gen_store_untyped(g, len_value, len_field_ptr, 0, false);
return tmp_struct_ptr;
} else if (array_type->id == ZigTypeIdStruct) {