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NNTP-Posting-Date: Sun, 13 Nov 2016 16:42:37 -0600
From: Gareth Owen <gwowen@gmail.com>
Newsgroups: comp.lang.c
Subject: Re: Compiler design in C?
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Date: Sun, 13 Nov 2016 22:42:36 +0000
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Xref: csiph.com comp.lang.c:96514

supercat@casperkitty.com writes:


> While some people may deride the use of C for tasks they think should be done
> in assembly language, the behavior of a C program on almost any real-world
> platform can be described as a sequence of loads, stores, and computations
> which will map very nicely into machine code for that platform, and C fits
> better with that mapping than any other language.

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?