[tremor] [PATCH] eliminate alloca() usage

[bobbydigi at btinternet.com]

> 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.

Well, for the Gameboy Advance (16Mhz ARM7TDMI) there are some results here:
http://www.devrs.com/gba/files/dwcmp.txt
and here:
http://www.dwelch.com/gba/dhry.htm

All versions of GCC seem to come out slower then the equivalent ARM compilers.

>From experience i'd say that GCC doesnt create the fastest ARM code and that the ARM ADS is the fastest (from examining ASM output).

rob
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