[tremor] [PATCH] eliminate alloca() usage

[timmy brolin]

> > Nicolas Pitre wrote:
> > 
>> > If your compiler doesn't support variable-length automatic arrays nor a
>> > proper alloca() implementation then please do yourself a favor by trashing
>> > it and install GCC instead.
>> 
>> GCC doesn't generate very fast code on most targets.

>Well it was certainly the case for gcc versions < 3, especially on ARM.  
>With the latest gcc this claim might not be true anymore.

Are there any comparisons or performance analysis to back up that claim?
I know that GCC 2 produced much less efficient code for ARM7 than other highly optimizing compilers, and I'am told from several ppl that GCC 3 isn't that much better.

I have access to a highly optimizing ARM7 compiler (IAR Systems), I tried to get tremor to compile on it. First try: over 900 errors and a few hundred warnings :)
IAR lacks alloca(), and it has trouble with the inline instruction and one or two other calls.
I tried for some time to make it work, but I failed.


--
Timmy

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