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NNTP-Posting-Date: Mon, 14 Nov 2016 01:08:21 -0600
From: Gareth Owen <gwowen@gmail.com>
Newsgroups: comp.lang.c
Subject: Re: Compiler design in C?
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Date: Mon, 14 Nov 2016 07:08:21 +0000
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Xref: csiph.com comp.lang.c:96527

"James R. Kuyper" <jameskuyper@verizon.net> writes:

> On 11/13/2016 05:42 PM, Gareth Owen wrote:
> ...
>> Under your translating compiler, should the following two programs
>> compile to different assembler?
>>
>> int main()
>> {
>>   int x = 3;
>>   int y = 6;
>>   printf("%d\n",x+y);
>> }
>>
>> int main()
>> {
>>   puts("7");
>> }
>>
>> Is the former obliged to store, load and then add x and y?
>
> Was that 7 supposed to be a 9? If not, I don't quite see the point of
> the question.

No, the 6 was supposed to be a 4