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<font size="-1"><font face="Verdana">wow!!! i would be interested in
trying this.... any helpful instructions (for a novice like me) to get
started using the msp430 backend would be helpful....<br>
<br>
as for your suggestion, it does work -- i can (say) place a call to
__get_SR_register() in my front-end source, and it simply shows up in
the back-end .c file; other "extensions" to compilers (such as
'interrupt' keyword to generate different prologue/epilogue code) would
be a little trickier (though there are presumably already gcc
mechansims for flagging interrupt routines??)<br>
<br>
<br>
</font></font><br>
Eli Friedman wrote:
<blockquote
cite="mid:f5aa3e9b0905031840j5511e5d2md2144a0438c32379@mail.gmail.com"
type="cite">
<pre wrap="">On Sun, May 3, 2009 at 6:19 PM, Bob Frankel <a class="moz-txt-link-rfc2396E" href="mailto:bios.bob.frankel@gmail.com"><bios.bob.frankel@gmail.com></a> wrote:
</pre>
<blockquote type="cite">
<pre wrap="">i'm looking into using llvm with TI's MSP430
</pre>
</blockquote>
<pre wrap=""><!---->
Ah, you're in luck then: an MSP430 backend was checked in to SVN today
:) I don't think it's mature enough for general use yet, though.
</pre>
<blockquote type="cite">
<pre wrap="">is there a way to leverage these (non-gcc) intrinsics in the llvm gcc-based
frontend -- perhaps flagging their use in such a way that they effectively
"pass through" the optimizer and are emitted "as is" in the generated C
code? in some respects, you can think of this usage as not unlike dropping
inline asm code into the C sources.
</pre>
</blockquote>
<pre wrap=""><!---->
You could try just generating calls to the builtins in question; if
you're lucky, it'll just work... if not, you can always use sed (or
equivalent) to manipulate the C output into the correct form.
-Eli
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</pre>
</blockquote>
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