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33 Commits

Author SHA1 Message Date
Andrew Lenharth
6600f4a1d0 Add support for a cycle counter intrinsic. As basically all processors have 
this and have it in about the same form, I think this makes sense.
on X86, you do a RDTSC (64bit result, from any ring since the P5MMX)
on Alpha, you do a RDCC
on PPC, there is a sequence which may or may not work depending on how things
are setup by the OS.  Or something like that.  Maybe someone who knows PPC
can add support.  Something about the time base register.
on Sparc, you read %tick, which in some solaris versions (>=8) is readable by
userspace
on IA64 read ar.itc

So I think the ulong is justified since all of those are 64bit.
Support is slighly flaky on old chips (P5 and lower) and sometimes
depends on OS (PPC, Sparc).  But for modern OS/Hardware (aka this decade),
we should be ok.

I am still not sure what to do about lowering.  I can either see a lower to 0, to
gettimeofday (or the target os equivalent), or loudly complaining and refusing to
continue.

I am commiting an Alpha implementation.  I will add the X86 implementation if I
have to (I have use of it in the near future), but if someone who knows that
backend (and the funky multi-register results) better wants to add it, it would
take them a lot less time ;)

TODO: better lowering and legalizing, and support more platforms
llvm-svn: 24299
 2005-11-11 16:45:18 +00:00
Andrew Lenharth
8b64bd0fd5 Implement count leading zeros (ctlz), count trailing zeros (cttz), and count 
population (ctpop).  Generic lowering is implemented, however only promotion
is implemented for SelectionDAG at the moment.

More coming soon.

llvm-svn: 21676
 2005-05-03 17:19:30 +00:00
Chris Lattner
234ffe2395 Add llvm.sqrt intrinsic, patch contributed by Morten Ofstad 
llvm-svn: 21627
 2005-04-30 03:44:07 +00:00
Misha Brukman
3f0aa3dbf8 Remove trailing whitespace 
llvm-svn: 21408
 2005-04-21 20:19:05 +00:00
Andrew Lenharth
c287cd1e4e First step in adding pcmarker intrinsic. Second step (soon) is adding backend support. 
llvm-svn: 20900
 2005-03-28 20:05:49 +00:00
Chris Lattner
df11946bb8 Add a prefetch intrinsic, patch contributed by Justin Wick! 
llvm-svn: 20374
 2005-02-28 19:25:57 +00:00
Misha Brukman
45881be596 The Alpha (tm) intrinsics aren't even being used 
llvm-svn: 17341
 2004-10-29 18:43:43 +00:00
Chris Lattner
7c3600a50e isnan is dead 
llvm-svn: 14191
 2004-06-15 21:52:58 +00:00
Alkis Evlogimenos
9b28aef6cb Add the isunordered intrinsic. 
llvm-svn: 14159
 2004-06-12 19:19:14 +00:00
Chris Lattner
b07bf147cd I misled Alkis: LLVM should have isnan, not isunordered. 
isunordered(X, Y) === isnan(X) | isnan(Y)

Remove isunordered, add isnan.

llvm-svn: 14132
 2004-06-11 02:29:43 +00:00
Alkis Evlogimenos
1ae8b4e7c4 Add the isunordered intrinsic. 
llvm-svn: 14127
 2004-06-11 01:08:18 +00:00
Chris Lattner
a65df8b576 Add the new GC intrinsics 
llvm-svn: 13686
 2004-05-23 21:16:33 +00:00
Chris Lattner
ffd151e5a9 Temporarily hack in the intrinsics that John added. I expect him to finish up their addition, but in the meantime, the build should not be broken. 
llvm-svn: 12938
 2004-04-14 02:22:54 +00:00
John Criswell
d4fe3ec1d1 Added the llvm.readport and llvm.writeport intrinsics. 
llvm-svn: 12780
 2004-04-08 20:26:21 +00:00
Chris Lattner
f7bc6fd913 Rename the intrinsic enum values for llvm.va_* from Intrinsic::va_* to 
Intrinsic::va*.  This avoid conflicting with macros in the stdlib.h file.

llvm-svn: 12356
 2004-03-13 00:24:00 +00:00
Chris Lattner
cdfcb976c7 Add llvm.memset/frameaddress/returnaddress intrinsics. 
llvm-svn: 11431
 2004-02-14 02:47:17 +00:00
Chris Lattner
7c8aebbdbc Add support for the llvm.memmove intrinsic. 
Patch graciously contributed by Reid Spencer!

llvm-svn: 11354
 2004-02-12 18:10:10 +00:00
Chris Lattner
d2ee2d61ac Urg, check in header I forgot. :( 
llvm-svn: 11353
 2004-02-12 17:57:11 +00:00
Chris Lattner
2ef279d638 add new intrinsic 
llvm-svn: 10700
 2004-01-06 05:32:17 +00:00
Chris Lattner
f9d6642d90 Add some intrinsics 
llvm-svn: 10690
 2004-01-05 05:35:34 +00:00
Brian Gaeke
d25f86d683 Put all LLVM code into the llvm namespace, as per bug 109. 
llvm-svn: 9903
 2003-11-11 22:41:34 +00:00
John Criswell
16c6cda9d5 Added LLVM copyright header (for lack of a better term). 
llvm-svn: 9304
 2003-10-20 20:19:47 +00:00
Chris Lattner
d0e3a15a9e New revised variable argument handling support 
llvm-svn: 9219
 2003-10-18 05:53:13 +00:00
Chris Lattner
4a708f1061 Eliminate the unwind intrinsic, it is now an instruction 
llvm-svn: 8412
 2003-09-08 19:44:47 +00:00
Chris Lattner
e7a3a51c77 As it turns out, things will be simpler than I first expected. We no longer 
need any exception handling intrinsics beyond llvm.unwind. (yaay)

llvm-svn: 8145
 2003-08-25 22:35:01 +00:00
Chris Lattner
33a8b49795 rethrow is really the language independent primitive here. "throw" can be written 
in terms of it and llvm.exc.setcurrent.

Rework these intrinsics.

llvm-svn: 8109
 2003-08-24 12:24:03 +00:00
Chris Lattner
6fe728600d Initial support for recognizing LLVM exception handling intrinsics 
llvm-svn: 8102
 2003-08-24 05:30:29 +00:00
Chris Lattner
2c6666efc6 Add intrinsics for the llvm.sig(set|long)jmp functions 
llvm-svn: 7949
 2003-08-18 15:41:24 +00:00
Chris Lattner
9d58af6fcf Add a bunch of new Alpha Intrinsics for Rahul Joshi 
llvm-svn: 7646
 2003-08-06 20:08:25 +00:00
Chris Lattner
f4b6e59dfa Add alpha intrinsics, contributed by Rahul Joshi 
llvm-svn: 7372
 2003-07-28 21:18:21 +00:00
Chris Lattner
b563188e45 Add comment for doxygen for namespace 
llvm-svn: 6578
 2003-06-03 15:30:13 +00:00
Chris Lattner
435e5592a9 Add support for setjmp/longjmp primitives 
Patch checked in for Bill Wendling :)

llvm-svn: 6241
 2003-05-17 22:26:33 +00:00
Chris Lattner
1ea6fe252b Initial checkin for LLVM intrinsic functions 
llvm-svn: 6032
 2003-05-08 03:33:54 +00:00