I have used all three, plus Rowley CrossWorks and command line GCC. As you would expect there are pro's and con's to all.
I would suggest making a list of what you want the compiler to do and cost, THEN obtain demo's of all the options to see which suits you best.
As far as benchmarks go - are you interested in size or speed? Or are neither of importance if your processor is large enough? The presented benchmarks tend to contradict each other. The most important thing to you might actually be 'how reliable is the compiler', and benchmarks don't tell you that!
I would second that. I'm in the process of porting three projects from IAR to Crossworks
formatting link
For my initial tests I could not see any significant difference in preformance between the GCC and IAR compilers. The GCC tend to generate slightly bigger code though (5-10% bigger) but in my application that's not a factor.
Rowley offers a 30-day trial. Try it. If nothing else, the IDE is a LOT better then IAR's - and much less buggy!
If you are interested in trying the GCC compiler, you can check out the precompiled binaries available at
formatting link
You will also find a lot of documentation.
BTW, this site is paid for by the ads, so if you see something you are interested in, please click them. The site uses a *lot* of bandwidth and the revenue is needed to keep it going.
The Keil compiler no longer exists. So 1 and 2 are the same.
The benchmarks are:-
Keil
formatting link
though these have come in for some argument. I would expect that the current Keil compiler is the same as the ARM-ADS one shown.
IAR
formatting link
These benchmarks were before Keil == ARM.
There is the
formatting link
which has a set of benchmarks for "their" compiler which is a Gcc compiler.
As an interesting note I understand that the Greenhills licence forbids the running, or at least the publishing of any benchmarks.
The point about all these is they all show that the compiler they are selling is the better one..... Which would suggest that all benchmarks are meaningless.
On the other hand when it comes to dev kits. Atmel, IAR, Philips and ST all produce kits. They are all reasonable. IT depends on what peripheral set you want.
--
\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\
\/\/\/\/\ Chris Hills Staffs England /\/\/\/\/
You might want to check out the GCC compiler. You will find precompiled binaries available at
formatting link
You will also find a lot of documentation.
BTW, this site is paid for by the ads, so if you see something you are interested in, please click them. The site uses a *lot* of bandwidth and the revenue is needed to keep it going.
ElectronDepot website is not affiliated with any of the manufacturers or service providers discussed here.
All logos and trade names are the property of their respective owners.