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26b146ccf1
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369 Commits

Author SHA1 Message Date
Chris Lattner
26b146ccf1 silence some "comparison between signed and unsigned integer expressions" 
warnings


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37177 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-17 20:01:40 +00:00
Dan Gohman
df799afbec Fix some sporadic segfaults that are triggered when SmallVector's heap 
storage lands near the end of the available address space. In the expression
Begin+N > Capacity, the Begin+N was overflowing. Fix this by replacing it
by with an expression that doesn't involve computation of an address
beyond the end of allocated memory.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37171 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-17 18:29:01 +00:00
Reid Spencer
19dc32a2d4 Add some things needed by the llvm-gcc version supporting bit accurate integer 
types:
1. Functions to compute div/rem at the same time.
2. Further assurance that an APInt with 0 bitwidth cannot be constructed.
3. Left and right rotate operations.
4. An exactLogBase2 function which requires an exact power of two or it
   returns -1.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37025 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-13 23:44:59 +00:00
Chris Lattner
82493289e0 This is a patch to fix a compile error in STLExtras.h, and 
a bug in GraphWriter.cpp.

Patch by Florian Brandner


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36684 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-03 18:32:10 +00:00
Chris Lattner
49e1580214 remove useless type qualifiers 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36676 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-03 17:09:36 +00:00
Jeff Cohen
2864b77efc Rename identifier that GCC uses as a macro, breaking llvm-gcc build. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36474 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-26 15:07:47 +00:00
Chris Lattner
703f5291c4 add a missing operator 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36375 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-23 20:58:14 +00:00
Jeff Cohen
3f520a7111 Fix some VC++ warnings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36259 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-19 02:04:09 +00:00
Chris Lattner
47e756c11e Commit an patch from Gabor Greif in Mar 2005. This eliminates the tail 
pointer from ilist, storing it in the prev pointer of the first node in the
list instead.

This shrinks ilist from 8 to 4 bytes, BasicBlock from 40->36 bytes, Function
from 76->68 bytes, Module from 52->44 bytes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36210 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-17 18:41:42 +00:00
Anton Korobeynikov
bed2946a96 Removed tabs everywhere except autogenerated & external files. Add make 
target for tabs checking.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36146 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-16 18:10:23 +00:00
Jeff Cohen
ac58a16f85 Fix PR1329. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36016 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-14 21:50:21 +00:00
Reid Spencer
57ae4f5f01 Implement a getBitsNeeded method to determine how many bits are needed to 
represent a string in binary form by an APInt.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35968 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-13 19:19:07 +00:00
Chris Lattner
2b4c234388 fix a comment bug Reid noticed 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35864 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-10 16:33:06 +00:00
Chris Lattner
403949ea93 add missing methods, mark stuff const 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35862 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-10 07:06:21 +00:00
Chris Lattner
4bda52d6b5 add a method 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35860 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-10 06:43:18 +00:00
Chris Lattner
db8918a98f Add a helper class (APSInt) which can represent an APInt along with sign 
information.  This is useful when a value does have a sign associated with
it.  This shouldn't be used generally in LLVM for mid-level optimizer stuff.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35681 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-05 05:20:11 +00:00
Lauro Ramos Venancio
ecd276a498 Fix release build. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35676 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-04 22:13:39 +00:00
Anton Korobeynikov
5502bf67cd Properly emit range comparisons for switch cases, where neighbour cases 
go to the same destination. Now we're producing really good code for
switch-lower-feature.ll testcase


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35672 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-04 21:14:49 +00:00
Chris Lattner
6401260af2 trivial optimization 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35648 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-04 06:18:21 +00:00
Chris Lattner
d2f197da59 use calloc instead of new/memset, it is more efficient 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35644 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-04 00:44:31 +00:00
Chris Lattner
794a014809 Extend StringMap to support being initialized as completely empty. When 
initialized this way, they do not do a malloc to allocate their buckets.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35642 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-04 00:29:37 +00:00
Chris Lattner
ef65293dc2 add missing operator 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35613 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-03 04:25:46 +00:00
Chris Lattner
febabcc02a add a helper function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35585 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-02 05:41:00 +00:00
Chris Lattner
086f186267 add range version of insert() 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35572 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-02 01:21:19 +00:00
Zhou Sheng
770e1798e1 Remove unused methods. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35553 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-01 12:45:33 +00:00
Duncan Sands
48a3e98c27 Correct typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35504 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-30 06:39:42 +00:00
Reid Spencer
f6bef488ee Compute getLowBitsSet correctly. Using the complement of a 64-bit value 
and shifting down without regard for the bitwidth of the APInt can lead
to incorrect initialization values. Instead, check for the word size case
(to avoid undef results from shift) and then do (1 << loBitsSet) - 1


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35344 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-25 21:58:42 +00:00
Reid Spencer
5b9f2d6186 Fix a typo in a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35316 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-25 01:13:46 +00:00
Reid Spencer
a1689ea60e 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35315 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-25 00:01:47 +00:00
Reid Spencer
758d1bc919 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35313 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-24 23:47:58 +00:00
Reid Spencer
5b7e659e22 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35312 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-24 23:42:47 +00:00
Reid Spencer
ca76fc2cd3 Don't invoke undefined behavior in shifts in the functions getHighBitsSet 
and getLowBitsSet.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35311 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-24 23:35:54 +00:00
Reid Spencer
8f969ee62c Implement the getBitsSet function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35310 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-24 23:27:48 +00:00
Reid Spencer
8da7d65b83 Implement the getHighBitsSet and getLowBitsSet functions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35308 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-24 23:05:35 +00:00
Reid Spencer
013263f7b0 Get the signs in the right place! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35307 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-24 22:50:43 +00:00
Reid Spencer
d3af825d29 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35305 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-24 22:37:23 +00:00
Reid Spencer
53c9520b23 Correct the implementation of srem to be remainder, not modulus. The sign of 
the result must follow the sign of the divisor.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35302 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-24 21:56:22 +00:00
Reid Spencer
7ac2f81e49 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35300 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-24 18:09:18 +00:00
Reid Spencer
3a3aacfe10 Fix a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35246 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-21 22:22:19 +00:00
Zhou Sheng
e51ffcf27f Correct the name: isStrictPositive --> isStrictlyPositive. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35201 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-20 02:18:16 +00:00
Chris Lattner
b9174dd5dc Add a dtor to fix leaks from all clients of BitVector. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35200 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-20 02:10:56 +00:00
Reid Spencer
95da121395 Add an indication of signedness to the uint64_t constructor so sign bits 
can be extended. This helps fix test/Assembler/2007-03-19-NegValue.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35179 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-19 20:36:48 +00:00
Zhou Sheng
fdcd5a7740 Add isStrictPositive() to APInt to determine if this APInt Value > 0. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35156 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-19 05:22:18 +00:00
Zhou Sheng
b991dfeae7 Add zextOrCopy() into APInt for convenience. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35079 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-13 06:16:26 +00:00
Zhou Sheng
8db6a445e6 Add getSignBit() and operator<<= into APInt for convenience. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35059 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-11 07:16:10 +00:00
Jeff Cohen
72adee00f6 The hack won't work on VS 2005, and it might not be needed anyway. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34930 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-05 17:22:33 +00:00
Zhou Sheng
3130835bdf Correct the calculation in APInt::logBase2(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34929 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-05 16:42:58 +00:00
Jeff Cohen
f15bd1b9c6 Elminate tabs and improve comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34921 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-05 00:46:22 +00:00
Jeff Cohen
ca5183d445 Unbreak VC++ build. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34917 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-05 00:00:42 +00:00
Chris Lattner
ab8fea5283 add iterator range version of ctor. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34899 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-04 04:04:43 +00:00