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Author SHA1 Message Date
Chris Lattner
1c248e7462 add fixme 
llvm-svn: 21887
 2005-05-12 06:04:14 +00:00
Chris Lattner
5f2a0d17ab Fix a really horrible problem that causes the JIT to miscompile any program 
that use 64-bit integers on 32-bit hosts.

llvm-svn: 21886
 2005-05-12 06:01:28 +00:00
Chris Lattner
1196356365 Fix a problem where early legalization can cause token chain problems. 
llvm-svn: 21885
 2005-05-12 04:49:08 +00:00
Chris Lattner
6b0a45e42c These targets don't like setcc 
llvm-svn: 21884
 2005-05-12 02:06:00 +00:00
Chris Lattner
045b3f0110 Add a little hook 
llvm-svn: 21883
 2005-05-12 02:02:21 +00:00
Chris Lattner
b38ffd7fbf Make legalize a bit more efficient, and canonicalize sub X, C -> add X, -C 
llvm-svn: 21882
 2005-05-12 00:17:04 +00:00
Nate Begeman
71bcc67a0f Add testcase for legalizing ISD::CTTZ efficiently. On PPC, ctlz(int) is 
now codegen'd as this:

        addi r2, r3, -1
        andc r2, r2, r3
        cntlzw r2, r2
        subfic r3, r2, 32
        blr

llvm-svn: 21881
 2005-05-11 23:45:54 +00:00
Nate Begeman
e84f776b5d Necessary changes to codegen cttz efficiently on PowerPC 
1. Teach LegalizeDAG how to better legalize CTTZ if the target doesn't have
   CTPOP, but does have CTLZ
2. Teach PPC32 how to do sub x, const -> add x, -const for valid consts
3. Teach PPC32 how to do and (xor a, -1) b -> andc b, a
4. Teach PPC32 that ISD::CTLZ -> PPC::CNTLZW

llvm-svn: 21880
 2005-05-11 23:43:56 +00:00
John Criswell
55937aba69 Regression test for PR#563. 
llvm-svn: 21879
 2005-05-11 21:47:35 +00:00
Tanya Lattner
265167f8db Fixed issue that broke ssa. 
llvm-svn: 21878
 2005-05-11 21:45:03 +00:00
Chris Lattner
da3dd2f9e2 fix some GCC 4 warnings 
llvm-svn: 21877
 2005-05-11 21:40:40 +00:00
John Criswell
38c97a63d4 Added support for decomposing constant expressions containing shr and shl 
instructions.
Review of this commit would be greatly appreciated.

llvm-svn: 21876
 2005-05-11 21:16:42 +00:00
Chris Lattner
8f2d079b36 Fix lowering of ctlz, so now UnitTests/2005-05-11-Popcount-ffs-fls passes 
with the CBE

llvm-svn: 21875
 2005-05-11 20:24:12 +00:00
Chris Lattner
303ac68c80 Fix lowering of cttz to work with signed values 
llvm-svn: 21874
 2005-05-11 20:02:14 +00:00
Chris Lattner
330f44f3b6 fix and concisify intinsic lowering for ctpop. Unfortunately, this code 
looks completely untested. :(

llvm-svn: 21873
 2005-05-11 19:42:05 +00:00
Chris Lattner
eeeaf45bba Fix the last remaining bug preventing us from switching the X86 BE over 
from the simple isel to the pattern isel.  This forces inserted libcalls
to serialize against other function calls, which was breaking
UnitTests/2005-05-12-Int64ToFP.  Hopefully this will fix issues on other
targets as well.

llvm-svn: 21872
 2005-05-11 19:02:11 +00:00
Chris Lattner
296754995e Do not memoize ADJCALLSTACKDOWN nodes, provide a method to hack on them. 
llvm-svn: 21871
 2005-05-11 18:57:39 +00:00
Chris Lattner
74763db128 wrap long line 
llvm-svn: 21870
 2005-05-11 18:57:06 +00:00
Chris Lattner
328273326d new method 
llvm-svn: 21869
 2005-05-11 18:56:45 +00:00
Chris Lattner
d76582b540 Make sure to legalize generated ctpop nodes, convert tabs to spaces 
llvm-svn: 21868
 2005-05-11 18:35:21 +00:00
Andrew Lenharth
b908893bab Legalize for CTLZ generates a ctpop, but this ctpop is not expanded. 
This is bad.  It is generated if you are ctlz a type that is not
legal for the arch (aka ctlz of bytes on alpha legalize fine).

llvm-svn: 21867
 2005-05-11 17:23:41 +00:00
Duraid Madina
8ad9786fcd expand count-leading/trailing-zeros; the test 2005-05-11-Popcount-ffs-fls.c 
should now pass (the "LLVM" and "REF" results should be identical)

llvm-svn: 21866
 2005-05-11 08:45:08 +00:00
Chris Lattner
c1273fc0b9 include the other bit count intrinsics 
llvm-svn: 21863
 2005-05-11 05:31:01 +00:00
Chris Lattner
b452b5aa42 Add some notes for expanding clz/ctz 
llvm-svn: 21862
 2005-05-11 05:27:09 +00:00
Chris Lattner
4f05136f61 Simplify this code, use the proper shift amount 
llvm-svn: 21861
 2005-05-11 05:21:31 +00:00
Duraid Madina
b9062e56cf add the popcount instruction and support this in the isel 
the primary user of this will probably end up being find-first-set-bit/find-
last-set-bit, which i'll get around to...

llvm-svn: 21860
 2005-05-11 05:16:09 +00:00
Chris Lattner
3edc8ecb53 Legalize this correctly 
llvm-svn: 21859
 2005-05-11 05:09:47 +00:00
Chris Lattner
d5d2886ee7 No really IA*64* :) 
llvm-svn: 21858
 2005-05-11 05:03:56 +00:00
Chris Lattner
e358ac532b X86 has more than just 32-bit registers 
llvm-svn: 21857
 2005-05-11 05:00:34 +00:00
Chris Lattner
457996c4a6 implement expansion of ctpop nodes, implementing CodeGen/Generic/llvm-ct-intrinsics.ll 
llvm-svn: 21856
 2005-05-11 04:51:16 +00:00
Chris Lattner
ce84b90a3d Print bit count nodes correctly 
llvm-svn: 21855
 2005-05-11 04:50:30 +00:00
Chris Lattner
4e9ebbc98d new testcase 
llvm-svn: 21854
 2005-05-11 04:22:47 +00:00
Chris Lattner
76a4a19269 update this to reflect the new selection daggy world 
llvm-svn: 21853
 2005-05-11 03:53:53 +00:00
Chris Lattner
2fc5553907 don't duplicate information, particularly when it's out of date! 
llvm-svn: 21852
 2005-05-11 03:35:57 +00:00
Chris Lattner
593c0e8957 Do not use "" as a sentinal for a missing argument! This fixes PR560. 
llvm-svn: 21850
 2005-05-10 23:20:17 +00:00
Chris Lattner
877248c8a3 new testcase for PR562 
llvm-svn: 21849
 2005-05-10 22:32:29 +00:00
Misha Brukman
c09e873482 Remove vim modeline; this should go into ~/.vimrc 
llvm-svn: 21848
 2005-05-10 22:06:41 +00:00
Misha Brukman
2407f3b84f Remove vim modeline, this belongs in ~/.vimrc 
llvm-svn: 21847
 2005-05-10 22:06:14 +00:00
Misha Brukman
ba8e260dce Consistently surround `cl::' code structures with <b> and <tt> to make them 
stand out as code

llvm-svn: 21846
 2005-05-10 22:05:27 +00:00
Misha Brukman
4fda633c59 Why output multiple strings, let the compiler concatenate them for us for free 
llvm-svn: 21845
 2005-05-10 22:03:50 +00:00
Misha Brukman
d264be8e32 * Convert tabs to spaces, fix code alignment 
* Remove trailing whitespace
* Wrap long lines

llvm-svn: 21844
 2005-05-10 22:02:28 +00:00
Duraid Madina
4dd8babde7 note HP-UX support 
llvm-svn: 21841
 2005-05-10 06:57:53 +00:00
Chris Lattner
8230bddde2 Convert feature of the simple isel over for the pattern isel to use. 
llvm-svn: 21840
 2005-05-10 03:53:18 +00:00
Chris Lattner
758f2fe1a3 Fix Reassociate/shifttest.ll 
llvm-svn: 21839
 2005-05-10 03:39:25 +00:00
Jeff Cohen
afc58006b7 Silence some VC++ warnings 
llvm-svn: 21838
 2005-05-10 02:22:38 +00:00
Chris Lattner
c1064620ef new testcase 
llvm-svn: 21837
 2005-05-10 00:33:36 +00:00
Chris Lattner
f221558c21 If a function contains no allocas, all of the calls in it are trivially 
suitable for tail calls.

llvm-svn: 21836
 2005-05-09 23:51:13 +00:00
Chris Lattner
5edb4c4af6 The semantics of cast X to bool are a comparison against zero, not a truncation! 
llvm-svn: 21833
 2005-05-09 22:17:13 +00:00
Chris Lattner
1693833459 testcase I've had in my tree 
llvm-svn: 21832
 2005-05-09 21:21:10 +00:00
Chris Lattner
d96aea21d7 Implement READPORT/WRITEPORT, implementing the last X86 regression tests 
that were failing with the pattern selector.  Note that the support that
existed in the simple selector was clearly broken in several ways though
(which has also been fixed).

llvm-svn: 21831
 2005-05-09 21:17:38 +00:00