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Author SHA1 Message Date
Chris Lattner
6d8bbccee0 add a note 
llvm-svn: 35330
 2007-03-25 04:46:28 +00:00
Chris Lattner
31c6763051 Fix CodeGen/PowerPC/2007-03-24-cntlzd.ll 
llvm-svn: 35329
 2007-03-25 04:44:03 +00:00
Chris Lattner
a01030bcf4 test that the ppc backend can do 64-bit cntlz 
llvm-svn: 35328
 2007-03-25 04:43:51 +00:00
Chris Lattner
4a7feb72f5 implement initial support for the silly X constraint. Testcase here: CodeGen/X86/2007-03-24-InlineAsmXConstraint.ll 
llvm-svn: 35327
 2007-03-25 04:35:41 +00:00
Chris Lattner
60fa65770f new testcase 
llvm-svn: 35326
 2007-03-25 04:35:23 +00:00
Reid Spencer
e601991a5e Make more uses of getHighBitsSet and get rid of some pointless & of an 
APInt with its type mask.

llvm-svn: 35325
 2007-03-25 04:26:16 +00:00
Chris Lattner
91adfbe0ff Implement CodeGen/X86/2007-03-24-InlineAsmMultiRegConstraint.ll 
llvm-svn: 35324
 2007-03-25 02:18:14 +00:00
Chris Lattner
6aa707f1b2 new testcase 
llvm-svn: 35323
 2007-03-25 02:17:58 +00:00
Chris Lattner
b19069959d switch TargetLowering::getConstraintType to take the entire constraint, 
not just the first letter.  No functionality change.

llvm-svn: 35322
 2007-03-25 02:14:49 +00:00
Reid Spencer
676eeb9c94 More APIntification: 
* Convert the last use of a uint64_t that should have been an APInt.
* Change ComputeMaskedBits to have a const reference argument for the Mask
  so that recursions don't cause unneeded temporaries. This causes temps
  to be needed in other places (where the mask has to change) but this
  change optimizes for the recursion which is more frequent.
* Remove two instances of &ing a Mask with getAllOnesValue. Its not
  needed any more because APInt is accurate in its bit computations.
* Start using the getLowBitsSet and getHighBits set methods on APInt
  instead of shifting. This makes it more clear in the code what is
  going on.

llvm-svn: 35321
 2007-03-25 02:03:12 +00:00
Chris Lattner
18c3c6a01d Allow the b/h/w/k constraints to be applied to values that have multiple alternatives, and end up not being registers. 
llvm-svn: 35320
 2007-03-25 02:01:03 +00:00
Chris Lattner
104e73382c enforce the proper range for the i386 N constraint. 
llvm-svn: 35319
 2007-03-25 01:57:35 +00:00
Chris Lattner
92e2ee7b2d Fix test/CodeGen/X86/2007-03-24-InlineAsmPModifier.ll 
llvm-svn: 35318
 2007-03-25 01:44:57 +00:00
Chris Lattner
62598bf96c new testcase 
llvm-svn: 35317
 2007-03-25 01:44:40 +00:00
Reid Spencer
b5b291924a Fix a typo in a comment. 
llvm-svn: 35316
 2007-03-25 01:13:46 +00:00
Reid Spencer
16d08887ef Actually, for getHighBitsSet and getLowBitsSet, don't make a 0 bit size 
illegal. Instead do the 0 valued construction for the user. This is because
the caller may not know (or care to check) that the number of bits set is
zero.

llvm-svn: 35315
 2007-03-25 00:01:47 +00:00
Chris Lattner
3f71a6b498 fix a regression on vector or instructions. 
llvm-svn: 35314
 2007-03-24 23:56:43 +00:00
Reid Spencer
d24dc1f9a6 Make it illegal to set 0 bits in getHighBitsSet and getLowBitsSet. For that 
they should have used the uint64_t constructor. This avoids causing
undefined results via shifts by the word size when the bit width is an
exact multiple of the word size.

llvm-svn: 35313
 2007-03-24 23:47:58 +00:00
Reid Spencer
fb188ea881 In the getBitsSet function, don't optimize for a common case that is 
already covered by getLowBitsSet (i.e. when loBits==0). Consequently, remove
the default value for loBits and reorder the arguments to the more natural
loBits, hiBits order. This makes it more clear that this function is for bit
groups in the middle of the bit width and not towards one end or the other.

llvm-svn: 35312
 2007-03-24 23:42:47 +00:00
Reid Spencer
091d6cf3b7 Don't invoke undefined behavior in shifts in the functions getHighBitsSet 
and getLowBitsSet.

llvm-svn: 35311
 2007-03-24 23:35:54 +00:00
Reid Spencer
0e466b183f Implement the getBitsSet function. 
llvm-svn: 35310
 2007-03-24 23:27:48 +00:00
Reid Spencer
4887aba89f Remove the last vestiges of this directory. 
llvm-svn: 35309
 2007-03-24 23:07:49 +00:00
Reid Spencer
1aa3f64ef4 Implement the getHighBitsSet and getLowBitsSet functions. 
llvm-svn: 35308
 2007-03-24 23:05:35 +00:00
Reid Spencer
30351837ca Get the signs in the right place! 
llvm-svn: 35307
 2007-03-24 22:50:43 +00:00
Reid Spencer
7edbb3082f Fix a link. 
llvm-svn: 35306
 2007-03-24 22:40:44 +00:00
Reid Spencer
0ceb493ee2 Undo the last change and make this really implement remainder and not 
modulus. The previous change was a result of incorrect documentation in
the LangRef.html.

llvm-svn: 35305
 2007-03-24 22:37:23 +00:00
Reid Spencer
0a9a2200a6 Flip the srem tests around. Previous commit was to correct an apparent 
bug in the srem implementation. Turns out it was a documentation bug
instead.

llvm-svn: 35304
 2007-03-24 22:34:10 +00:00
Reid Spencer
88d0496d66 Correct the description of srem. remainder follows the dividend not the 
divisor!

llvm-svn: 35303
 2007-03-24 22:23:39 +00:00
Reid Spencer
c1dfceab8b Correct the implementation of srem to be remainder, not modulus. The sign of 
the result must follow the sign of the divisor.

llvm-svn: 35302
 2007-03-24 21:56:22 +00:00
Reid Spencer
ffa19b617d Fix incorrect test cases for srem. The definition of srem is a remainder so 
that the sign of the result follows the sign of the divisor.

llvm-svn: 35301
 2007-03-24 21:55:26 +00:00
Reid Spencer
52ea41bb97 Clean up this interface: 
1. Group similar methods into doxygen groups
2. Reorganize the groups into a consist flow.
3. Significantly improve the quality of the documentation on several methods
4. Rewrite srem and sdiv to eliminate a copy and improve readability.
5. Eliminate unneeded forward references.

llvm-svn: 35300
 2007-03-24 18:09:18 +00:00
Chris Lattner
57d0c197e6 don't rely on ADL 
llvm-svn: 35299
 2007-03-24 17:37:03 +00:00
Chris Lattner
3a16450eaf add a valuetype for v1i64, which is needed by mmx. 
llvm-svn: 35298
 2007-03-24 17:36:26 +00:00
Zhou Sheng
ce8c7becec Make some codes more efficient. 
llvm-svn: 35297
 2007-03-24 15:34:37 +00:00
Chris Lattner
a04981fbda add a bad case evan though of. 
llvm-svn: 35296
 2007-03-24 06:01:32 +00:00
Reid Spencer
b03fc33244 For PR1205: 
Convert some calls to ConstantInt::getZExtValue() into getValue() and
use APInt facilities in the subsequent computations.

llvm-svn: 35294
 2007-03-24 00:42:08 +00:00
Evan Cheng
a484f31d4b Adjust offset to compensate for big endian machines. 
llvm-svn: 35293
 2007-03-24 00:02:43 +00:00
Anton Korobeynikov
63bff8af0c Autodetect MMX & SSE stuff for AMD processors 
llvm-svn: 35292
 2007-03-23 23:46:48 +00:00
Bill Wendling
ad01036d5c This is dead. DEAD I tells you!! 
llvm-svn: 35291
 2007-03-23 22:42:04 +00:00
Bill Wendling
124f2c8706 PR1260: 
Add final support to get the QT example to compile.

llvm-svn: 35290
 2007-03-23 22:35:46 +00:00
Evan Cheng
84aecc56e7 Make sure SEXTLOAD of the specific type is supported on the target. 
llvm-svn: 35289
 2007-03-23 22:13:36 +00:00
Reid Spencer
a450c790e7 Add more test cases for APIntified InstCombine. 
llvm-svn: 35288
 2007-03-23 21:57:47 +00:00
Reid Spencer
01d252add1 For PR1205: 
* APIntify visitAdd and visitSelectInst
* Remove unused uint64_t versions of utility functions that have been
  replaced with APInt versions.
This completes most of the changes for APIntification of InstCombine. This
passes llvm-test and llvm/test/Transforms/InstCombine/APInt.

Patch by Zhou Sheng.

llvm-svn: 35287
 2007-03-23 21:24:59 +00:00
Evan Cheng
7dd7666120 Also replace uses of SRL if that's also folded during ReduceLoadWidth(). 
llvm-svn: 35286
 2007-03-23 20:55:21 +00:00
Reid Spencer
eebf90ce0b Add test case for testing InstCombine with arbitrary precision integer 
types. These tests mimic the integer test cases in the normal InstCombine
test suite but use "strange" integer bit widths.

Most tests written by Zhou Sheng, a few by me.

llvm-svn: 35284
 2007-03-23 20:48:34 +00:00
Reid Spencer
da8ec61ec4 For PR1205: 
APIntify visitDiv, visitMul and visitRem.

Patch by Zhou Sheng.

llvm-svn: 35283
 2007-03-23 20:05:17 +00:00
Chris Lattner
04baffb0c5 switch AddReachableCodeToWorklist from being recursive to being iterative. 
llvm-svn: 35282
 2007-03-23 19:17:18 +00:00
Reid Spencer
1fd12cf9f6 For PR1205: 
APIntify several utility functions supporting logical operators and shift
operators.

Patch by Zhou Sheng.

llvm-svn: 35281
 2007-03-23 18:46:34 +00:00
Dan Gohman
42a3f4e16e Add the 'explicit' keyword to several constructors that accept one 
argument that don't appear intended as implicit-conversion operators.

llvm-svn: 35280
 2007-03-23 18:44:11 +00:00
Duncan Sands
bce4648a05 Test handling of switches with wide case ranges. 
llvm-svn: 35279
 2007-03-23 07:17:52 +00:00