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Re: Forward references

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On 10/2/2016 5:44 PM, Jerry Stuckle wrote:
> On 10/2/2016 1:11 PM, Martin Gregorie wrote:
>> On Sun, 02 Oct 2016 15:45:19 +0000, Stefan Ram wrote:
>>> An old C compiler from the 70s is a one-pass compiler IIRC,
>>>   so it does not do "forward references".
>>>
>> Whose C was that?
>>
>> Not K&R for sure: they've always had separate preprocessor, C->Assembler
>> translation, assembler and linker phases. Thats a given, since from the
>> outset they were designed to use the native assembler and linker
>> of the target machine, since that's an easy way to make porting easier.
>
> Stefan is correct.  The preprocessor is not a compiler; neither is the
> linker.

True.

>         And there was not a c->Assembler and assembler - every C
> compiler I know of (at least since the mid 80's) generated machine code
> directly, although most did have the option to output the assembler
> code, also.   There was not a separate assembler step.

GCC

It has 'gcc' call 'cc1' to generate '.s' and call 'as' to assemble to '.o'.

But the assembler is not a compiler pass either.

Arne

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Re: Forward references Martin Gregorie <martin@address-in-sig.invalid> - 2016-10-02 17:11 +0000
  Re: Forward references Jerry Stuckle <jstucklex@attglobal.net> - 2016-10-02 17:44 -0400
    Re: Forward references Martin Gregorie <martin@address-in-sig.invalid> - 2016-10-02 22:37 +0000
      Re: Forward references Jerry Stuckle <jstucklex@attglobal.net> - 2016-10-02 22:01 -0400
    Re: Forward references Arne Vajhøj <arne@vajhoej.dk> - 2016-10-02 19:54 -0400
  Re: Forward references Arne Vajhøj <arne@vajhoej.dk> - 2016-10-02 19:56 -0400

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