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Author SHA1 Message Date
Bob Wilson
27dfb1e1a4 Do not reassociate expressions with i1 type. SimplifyCFG converts some 
short-circuited conditions to AND/OR expressions, and those expressions
are often converted back to a short-circuited form in code gen.  The
original source order may have been optimized to take advantage of the
expected values, and if we reassociate them, we change the order and
subvert that optimization.  Radar 7497329.

llvm-svn: 95333
 2010-02-04 23:32:37 +00:00
Chris Lattner
ab7087ad66 only factor from expressions whose uses are empty and whose 
base is the right expression type.  This fixes PR5981.

llvm-svn: 93045
 2010-01-09 06:01:36 +00:00
Duncan Sands
4a8b15dc74 Suppress an unused variable warning when assertions are off; 
remove some trailing whitespace while there.

llvm-svn: 93008
 2010-01-08 17:51:48 +00:00
Chris Lattner
f741d72b84 fix an infinite loop in reassociate building emacs. 
llvm-svn: 92679
 2010-01-05 04:55:35 +00:00
David Greene
d17c3916d0 Change errs() to dbgs(). 
llvm-svn: 92617
 2010-01-05 01:27:24 +00:00
Chris Lattner
e199d2df80 theoretically the negate we find could be in a different function, check 
for this case.

llvm-svn: 92425
 2010-01-02 21:46:33 +00:00
Chris Lattner
0c59ac3f41 When factoring multiply expressions across adds, factor both 
positive and negative forms of constants together.  This 
allows us to compile:

int foo(int x, int y) {
    return (x-y) + (x-y) + (x-y);
}

into:

_foo:                                                       ## @foo
	subl	%esi, %edi
	leal	(%rdi,%rdi,2), %eax
	ret

instead of (where the 3 and -3 were not factored):

_foo:
        imull   $-3, 8(%esp), %ecx
        imull   $3, 4(%esp), %eax
        addl    %ecx, %eax
        ret

this started out as:
    movl    12(%ebp), %ecx
    imull   $3, 8(%ebp), %eax
    subl    %ecx, %eax
    subl    %ecx, %eax
    subl    %ecx, %eax
    ret

This comes from PR5359.

llvm-svn: 92381
 2010-01-01 01:13:15 +00:00
Chris Lattner
a552683fd4 clean up some comments. 
llvm-svn: 92377
 2010-01-01 00:04:26 +00:00
Chris Lattner
17229a7cb8 switch from std::map to DenseMap for rank data structures. 
llvm-svn: 92375
 2010-01-01 00:01:34 +00:00
Chris Lattner
fed3397654 reuse negates where possible instead of always creating them from scratch. 
This allows us to optimize test12 into:

define i32 @test12(i32 %X) {
  %factor = mul i32 %X, -3                        ; <i32> [#uses=1]
  %Z = add i32 %factor, 6                         ; <i32> [#uses=1]
  ret i32 %Z
}

instead of:

define i32 @test12(i32 %X) {
  %Y = sub i32 6, %X                              ; <i32> [#uses=1]
  %C = sub i32 %Y, %X                             ; <i32> [#uses=1]
  %Z = sub i32 %C, %X                             ; <i32> [#uses=1]
  ret i32 %Z
}

llvm-svn: 92373
 2009-12-31 20:34:32 +00:00
Chris Lattner
60c2ca743d we don't need a smallptrset to detect duplicates, the values are 
sorted, so we can just do a linear scan.

llvm-svn: 92372
 2009-12-31 19:49:01 +00:00
Chris Lattner
1d8979422a make reassociate more careful about not leaving around dead mul's 
llvm-svn: 92370
 2009-12-31 19:34:45 +00:00
Chris Lattner
ed18917665 remove debug 
llvm-svn: 92369
 2009-12-31 19:25:19 +00:00
Chris Lattner
60b71b5c4d teach reassociate to factor x+x+x -> x*3. While I'm at it, 
fix RemoveDeadBinaryOp to actually do something.

llvm-svn: 92368
 2009-12-31 19:24:52 +00:00
Chris Lattner
38abecbad0 change reassociate to use SmallVector for its key datastructures 
instead of std::vector.

llvm-svn: 92366
 2009-12-31 18:40:32 +00:00
Chris Lattner
ac61550504 change an if to an assert, fix comment. 
llvm-svn: 92364
 2009-12-31 18:18:46 +00:00
Chris Lattner
177140ad12 move the rest of the add optimization code out to OptimizeAdd, 
improve some comments, simplify a bit of code.

llvm-svn: 92363
 2009-12-31 18:17:13 +00:00
Chris Lattner
ba1f36aa99 factor statistic updating better. 
llvm-svn: 92362
 2009-12-31 17:51:05 +00:00
Chris Lattner
4e3a5678af simple fix for an incorrect factoring which causes a 
miscompilation, PR5458.

llvm-svn: 92354
 2009-12-31 08:33:49 +00:00
Chris Lattner
5f8a005d38 factor code out into helper functions. 
llvm-svn: 92347
 2009-12-31 07:59:34 +00:00
Chris Lattner
f5c2b8b8d7 switch some std::vector's to smallvector. Reduce nesting. 
llvm-svn: 92346
 2009-12-31 07:48:51 +00:00
Chris Lattner
9039ff8912 use more modern datastructures. 
llvm-svn: 92344
 2009-12-31 07:33:14 +00:00
Chris Lattner
bc1512c8d1 clean up -debug output. 
llvm-svn: 92343
 2009-12-31 07:17:37 +00:00
Nick Lewycky
7935bcb0fe Remove LLVMContext from reassociate. It was threaded through every function but 
ultimately never used.

llvm-svn: 88763
 2009-11-14 07:25:54 +00:00
Victor Hernandez
be9e179104 Make changes to rev 84292 as requested by Chris Lattner. 
Most changes are cleanup, but there is 1 correctness fix:
I fixed InstCombine so that the icmp is removed only if the malloc call is removed (which requires explicit removal because the Worklist won't DCE any calls since they can have side-effects).

llvm-svn: 84772
 2009-10-21 19:11:40 +00:00
Victor Hernandez
a3aaf85e23 Remove MallocInst from LLVM Instructions. 
llvm-svn: 84299
 2009-10-17 01:18:07 +00:00
Victor Hernandez
c7d6a8327c Autoupgrade malloc insts to malloc calls. 
Update testcases that rely on malloc insts being present.

Also prematurely remove MallocInst handling from IndMemRemoval and RaiseAllocations to help pass tests in this incremental step.

llvm-svn: 84292
 2009-10-17 00:00:19 +00:00
Chris Lattner
8b4d3dfbbf calls are already unmovable, malloc doesn't need a special case. 
llvm-svn: 82933
 2009-09-27 21:36:19 +00:00
Victor Hernandez
5d034499ad Enhance transform passes so that they apply the same tranforms to malloc calls as to MallocInst. 
Reviewed by Dan Gohman.

llvm-svn: 82300
 2009-09-18 22:35:49 +00:00
Chris Lattner
2dd09dbdf7 eliminate VISIBILITY_HIDDEN from Transforms/Scalar. PR4861 
llvm-svn: 80766
 2009-09-02 06:11:42 +00:00
Chris Lattner
3924bb5792 remove the std::ostream version of module and type printing. 
llvm-svn: 79823
 2009-08-23 04:52:46 +00:00
Chris Lattner
b25de3ff60 eliminate the "Value" printing methods that print to a std::ostream. 
This required converting a bunch of stuff off DOUT and other cleanups.

llvm-svn: 79819
 2009-08-23 04:37:46 +00:00
Dan Gohman
8dd69f88ea Fix debug output to include a newline after printing a Value, now 
that Value's operator<< doesn't include one.

llvm-svn: 79240
 2009-08-17 15:25:05 +00:00
Dan Gohman
5476cfdb15 Remove a bunch more now-unnecessary Context arguments. 
llvm-svn: 78809
 2009-08-12 16:23:25 +00:00
Owen Anderson
5a1acd9912 Move a few more APIs back to 2.5 forms. The only remaining ones left to change back are 
metadata related, which I'm waiting on to avoid conflicting with Devang.

llvm-svn: 77721
 2009-07-31 20:28:14 +00:00
Owen Anderson
b292b8ce70 Move more code back to 2.5 APIs. 
llvm-svn: 77635
 2009-07-30 23:03:37 +00:00
Owen Anderson
487375e9a2 Move ConstantExpr to 2.5 API. 
llvm-svn: 77494
 2009-07-29 18:55:55 +00:00
Owen Anderson
edb4a70325 Revert the ConstantInt constructors back to their 2.5 forms where possible, thanks to contexts-on-types. More to come. 
llvm-svn: 77011
 2009-07-24 23:12:02 +00:00
Owen Anderson
47db941fd3 Get rid of the Pass+Context magic. 
llvm-svn: 76702
 2009-07-22 00:24:57 +00:00
Owen Anderson
bb2501bbbe These don't really need contexts either. 
llvm-svn: 75528
 2009-07-13 22:18:28 +00:00
Owen Anderson
542619e6d5 Move more functionality over to LLVMContext. 
llvm-svn: 75497
 2009-07-13 20:58:05 +00:00
Owen Anderson
53a52215b5 Begin the painful process of tearing apart the rat'ss nest that is Constants.cpp and ConstantFold.cpp. 
This involves temporarily hard wiring some parts to use the global context.  This isn't ideal, but it's
the only way I could figure out to make this process vaguely incremental.

llvm-svn: 75445
 2009-07-13 04:09:18 +00:00
Owen Anderson
38264b1554 "LLVMContext* " --> "LLVMContext *" 
llvm-svn: 74878
 2009-07-06 23:00:19 +00:00
Owen Anderson
340288c621 Even more passes being LLVMContext'd. 
llvm-svn: 74781
 2009-07-03 19:42:02 +00:00
Chris Lattner
f72ce6ea8b Make the key of ValueRankMap an AssertingVH, so that we die violently 
if it dangles.

llvm-svn: 68150
 2009-03-31 22:13:29 +00:00
Dale Johannesen
52bc2aac8a This pass keeps a map of Instructions to Rank numbers, 
and was deleting Instructions without clearing the
corresponding map entry.  This led to nondeterministic
behavior if the same address got allocated to another
Instruction within a short time.

llvm-svn: 67306
 2009-03-19 17:22:53 +00:00
Dale Johannesen
fb1caf3e1f Don't assign rank numbers to debug intrinsic "calls". 
This is needed so debug info doesn't change codegen.

llvm-svn: 66235
 2009-03-06 01:41:59 +00:00
Devang Patel
702f45df58 Fix build failure. 
llvm-svn: 59844
 2008-11-21 21:00:20 +00:00
Devang Patel
cb181bb203 Silence unused variable warnings. 
llvm-svn: 59841
 2008-11-21 20:00:59 +00:00
Dan Gohman
a79db30d28 Tidy up several unbeseeming casts from pointer to intptr_t. 
llvm-svn: 55779
 2008-09-04 17:05:41 +00:00
Chris Lattner
57693dda1d don't use the result of WriteAsOperand 
llvm-svn: 54979
 2008-08-19 04:45:19 +00:00
Gabor Greif
e1f6e4b21d API change for {BinaryOperator|CmpInst|CastInst}::create*() --> Create. Legacy interfaces will be in place for some time. (Merge from use-diet branch.) 
llvm-svn: 51200
 2008-05-16 19:29:10 +00:00
Dan Gohman
d78c400b5b Clean up the use of static and anonymous namespaces. This turned up 
several things that were neither in an anonymous namespace nor static
but not intended to be global.

llvm-svn: 51017
 2008-05-13 00:00:25 +00:00
Dan Gohman
9988569af8 Don't include <map> in Pass.h, which doesn't need it. This requires 
adding <map> to many files that actually do need it.

llvm-svn: 48667
 2008-03-21 23:51:57 +00:00
Chris Lattner
0e7fd2f1a8 simplify some code, BreakUpSubtract always returns nonnull now. 
llvm-svn: 47251
 2008-02-18 02:18:25 +00:00
Chris Lattner
5f08ec854f fix pasto 
llvm-svn: 47242
 2008-02-17 20:54:40 +00:00
Chris Lattner
a70d138457 Split up subtracts into add+negate if they have a reassociable use or operand 
that is also a subtract.  This implements PR2047 and Transforms/Reassociate/subtest2.ll 

llvm-svn: 47241
 2008-02-17 20:51:26 +00:00
Chris Lattner
902537cd8d make the logic for breaking up subtracts more explicit, no 
functionality change.

llvm-svn: 47239
 2008-02-17 20:44:51 +00:00
Dan Gohman
70de4cb1cd Use empty() instead of comparing size() with zero. 
llvm-svn: 46514
 2008-01-29 13:02:09 +00:00
Chris Lattner
f3ebc3f3d2 Remove attribution from file headers, per discussion on llvmdev. 
llvm-svn: 45418
 2007-12-29 20:36:04 +00:00
Nick Lewycky
e7da2d6ac3 Fix typo in comment. 
llvm-svn: 36873
 2007-05-06 13:37:16 +00:00
Devang Patel
8c78a0bff0 Drop 'const' 
llvm-svn: 36662
 2007-05-03 01:11:54 +00:00
Devang Patel
e95c6ad802 Use 'static const char' instead of 'static const int'. 
Due to darwin gcc bug, one version of darwin linker coalesces
static const int, which defauts PassID based pass identification.

llvm-svn: 36652
 2007-05-02 21:39:20 +00:00
Devang Patel
09f162ca6a Do not use typeinfo to identify pass in pass manager. 
llvm-svn: 36632
 2007-05-01 21:15:47 +00:00
Reid Spencer
2e54a15943 Prefer non-virtual calls to ConstantInt::isZero over virtual calls to 
Constant::isNullValue() in situations where it is possible.

llvm-svn: 34821
 2007-03-02 00:28:52 +00:00
Reid Spencer
17797076ef Use isUnitValue() instead of getZExtValue() == 1 which will prevent an 
assert if the ConstantInt's value is large.

llvm-svn: 34814
 2007-03-01 21:51:23 +00:00
Reid Spencer
d84d35ba70 For PR1195: 
Rename PackedType -> VectorType, ConstantPacked -> ConstantVector, and
PackedTyID -> VectorTyID. No functional changes.

llvm-svn: 34293
 2007-02-15 02:26:10 +00:00
Chris Lattner
6e0123b17f Simplify code by using value::takename 
llvm-svn: 34176
 2007-02-11 01:23:03 +00:00
Reid Spencer
557ab15e71 Apply the VISIBILITY_HIDDEN field to the remaining anonymous classes in 
the Transforms library. This reduces debug library size by 132 KB, debug
binary size by 376 KB, and reduces link time for llvm tools slightly.

llvm-svn: 33939
 2007-02-05 23:32:05 +00:00
Reid Spencer
2eadb5310d For PR970: 
Clean up handling of isFloatingPoint() and dealing with PackedType.
Patch by Gordon Henriksen!

llvm-svn: 33415
 2007-01-21 00:29:26 +00:00
Chris Lattner
03c4953cdd rename Type::isIntegral to Type::isInteger, eliminating the old Type::isInteger. 
rename Type::getIntegralTypeMask to Type::getIntegerTypeMask.

This makes naming much more consistent.  For example, there are now no longer any
instances of IntegerType that are not considered isInteger! :)

llvm-svn: 33225
 2007-01-15 02:27:26 +00:00
Zhou Sheng
75b871fb1e For PR1043: 
Merge ConstantIntegral and ConstantBool into ConstantInt.
Remove ConstantIntegral and ConstantBool from LLVM.

llvm-svn: 33073
 2007-01-11 12:24:14 +00:00
Reid Spencer
266e42b312 For PR950: 
This patch removes the SetCC instructions and replaces them with the ICmp
and FCmp instructions. The SetCondInst instruction has been removed and
been replaced with ICmpInst and FCmpInst.

llvm-svn: 32751
 2006-12-23 06:05:41 +00:00
Chris Lattner
79a42ac941 Switch over Transforms/Scalar to use the STATISTIC macro. For each statistic 
converted, we lose a static initializer.  This also allows GCC to emit warnings
about unused statistics.

llvm-svn: 32690
 2006-12-19 21:40:18 +00:00
Bill Wendling
22e978a736 Removing even more <iostream> includes. 
llvm-svn: 32320
 2006-12-07 20:04:42 +00:00
Chris Lattner
700b873130 Detemplatize the Statistic class. The only type it is instantiated with 
is 'unsigned'.

llvm-svn: 32279
 2006-12-06 17:46:33 +00:00
Chris Lattner
edcc8c2f8b Remove the 'printname' argument to WriteAsOperand. It is always true, and 
passing false would make the asmprinter fail anyway.

llvm-svn: 32264
 2006-12-06 06:16:21 +00:00
Reid Spencer
7eb55b395f For PR950: 
Replace the REM instruction with UREM, SREM and FREM.

llvm-svn: 31369
 2006-11-02 01:53:59 +00:00
Reid Spencer
7e80b0b31e For PR950: 
Make necessary changes to support DIV -> [SUF]Div. This changes llvm to
have three division instructions: signed, unsigned, floating point. The
bytecode and assembler are bacwards compatible, however.

llvm-svn: 31195
 2006-10-26 06:15:43 +00:00
Reid Spencer
e0fc4dfc22 For PR950: 
This patch implements the first increment for the Signless Types feature.
All changes pertain to removing the ConstantSInt and ConstantUInt classes
in favor of just using ConstantInt.

llvm-svn: 31063
 2006-10-20 07:07:24 +00:00
Chris Lattner
c2d3d3112e eliminate RegisterOpt. It does the same thing as RegisterPass. 
llvm-svn: 29925
 2006-08-27 22:42:52 +00:00
Chris Lattner
e63d808b6e Fix Transforms/Reassociate/2006-04-27-ReassociateVector.ll 
llvm-svn: 28007
 2006-04-28 04:14:49 +00:00
Chris Lattner
c5f866bb4a Implement a FIXME, recusively reassociating 
A*A*B + A*A*C   -->   A*(A*B+A*C)   -->   A*(A*(B+C))

This implements Reassociate/mul-factor3.ll

llvm-svn: 26757
 2006-03-14 16:04:29 +00:00
Chris Lattner
2fc319d444 extract some code into a method, no functionality change 
llvm-svn: 26755
 2006-03-14 07:11:11 +00:00
Chris Lattner
d6bde46d85 Promote shifts by a constant to multiplies so that we can reassociate 
(x<<1)+(y<<1) -> (X+Y)<<1.  This implements
Transforms/Reassociate/shift-factor.ll

llvm-svn: 26753
 2006-03-14 06:55:18 +00:00
Chris Lattner
4c065091d8 Add factoring of multiplications, e.g. turning A*A+A*B into A*(A+B). 
Testcase here: Transforms/Reassociate/mulfactor.ll

llvm-svn: 26524
 2006-03-04 09:31:13 +00:00
Chris Lattner
c597b8a55e Make iostream #inclusion explicit 
llvm-svn: 25514
 2006-01-22 23:32:06 +00:00
Chris Lattner
b5e381a8cf Fix a problem that Dan Berlin noticed, where reassociation would not succeed 
in building maximal expressions before simplifying them.  In particular, i
cases like this:

X-(A+B+X)

the code would consider A+B+X to be a maximal expression (not understanding
that the single use '-' would be turned into a + later), simplify it (a noop)
then later get simplified again.

Each of these simplify steps is where the cost of reassociation comes from,
so this patch should speed up the already fast pass a bit.

Thanks to Dan for noticing this!

llvm-svn: 23214
 2005-09-02 07:07:58 +00:00
Chris Lattner
9fe263aa75 Avoid creating garbage instructions, just move the old add instruction 
to where we need it when converting -(A+B+C) -> -A + -B + -C.

llvm-svn: 23213
 2005-09-02 06:38:04 +00:00
Chris Lattner
d1325da091 add some assertions and fix problems where reassociate could access the 
Ops vector out of range

llvm-svn: 23211
 2005-09-02 05:23:22 +00:00
Chris Lattner
8ca5b2a6d2 Fix Regression/Transforms/Reassociate/2005-08-24-Crash.ll 
llvm-svn: 23019
 2005-08-24 17:55:32 +00:00
Chris Lattner
9f269e40c9 Use the new 'moveBefore' method to simplify some code. Really, which is 
easier to understand?  :)

llvm-svn: 22706
 2005-08-08 19:11:57 +00:00
Jeff Cohen
5f4ef3c5a8 Eliminate all remaining tabs and trailing spaces. 
llvm-svn: 22523
 2005-07-27 06:12:32 +00:00
Chris Lattner
31c667e234 Fix Reassociate/shifttest.ll 
llvm-svn: 21839
 2005-05-10 03:39:25 +00:00
Chris Lattner
df3332660f Implement Reassociate/mul-neg-add.ll 
llvm-svn: 21788
 2005-05-08 21:41:35 +00:00
Chris Lattner
c4f8e2b0ed Bail out earlier 
llvm-svn: 21786
 2005-05-08 21:33:47 +00:00
Chris Lattner
877b114037 Teach reassociate that 0-X === X*-1 
llvm-svn: 21785
 2005-05-08 21:28:52 +00:00
Chris Lattner
9f284e0a3c Fix PR557 and basictest[34].ll. 
This makes reassociate realize that loads should be treated as unmovable, and
gives distinct ranks to distinct values defined in the same basic block, allowing
reassociate to do its thing.

llvm-svn: 21783
 2005-05-08 20:57:04 +00:00
Chris Lattner
9187f3905e Add debugging information 
llvm-svn: 21781
 2005-05-08 20:09:57 +00:00
Chris Lattner
08582be283 eliminate gotos 
llvm-svn: 21780
 2005-05-08 19:48:43 +00:00
Chris Lattner
5847e5e10c Improve reassociation handling of inverses, implementing inverses.ll. 
llvm-svn: 21778
 2005-05-08 18:59:37 +00:00
Chris Lattner
e1850b86b6 Refactor some code 
llvm-svn: 21772
 2005-05-08 00:19:31 +00:00
Chris Lattner
6e2086d7e4 Handle some simple cases where we can see that values get annihilated. 
llvm-svn: 21771
 2005-05-08 00:08:33 +00:00
Chris Lattner
1e5065052a Rewrite the guts of the reassociate pass to be more efficient and logical. Instead 
of trying to do local reassociation tweaks at each level, only process an expression
tree once (at its root).  This does not improve the reassociation pass in any real way.

llvm-svn: 21768
 2005-05-07 21:59:39 +00:00
Chris Lattner
cea579932d Convert shifts to muls to assist reassociation. This implements 
Reassociate/shifttest.ll

llvm-svn: 21761
 2005-05-07 04:24:13 +00:00
Chris Lattner
f43e974abd Simplify the code and rearrange it. No major functionality changes here. 
llvm-svn: 21759
 2005-05-07 04:08:02 +00:00
Misha Brukman
b1c9317bb4 Remove trailing whitespace 
llvm-svn: 21427
 2005-04-21 23:48:37 +00:00
Chris Lattner
531f9e92d4 This mega patch converts us from using Function::a{iterator|begin|end} to 
using Function::arg_{iterator|begin|end}.  Likewise Module::g* -> Module::global_*.

This patch is contributed by Gabor Greif, thanks!

llvm-svn: 20597
 2005-03-15 04:54:21 +00:00
Reid Spencer
7c16caa336 Changes For Bug 352 
Move include/Config and include/Support into include/llvm/Config,
include/llvm/ADT and include/llvm/Support. From here on out, all LLVM
public header files must be under include/llvm/.

llvm-svn: 16137
 2004-09-01 22:55:40 +00:00
Misha Brukman
2b3387a6d9 Fix #includes of i*.h => Instructions.h as per PR403. 
llvm-svn: 15328
 2004-07-29 17:05:13 +00:00
Chris Lattner
9a63520b1a Fixes working towards PR341 
llvm-svn: 14839
 2004-07-15 01:50:47 +00:00
Brian Gaeke
163c87fc32 Make this pass use a more specific debug message than "Processing:". 
llvm-svn: 14541
 2004-07-01 19:27:10 +00:00
Chris Lattner
49525f8cf4 Finegrainify namespacification 
llvm-svn: 10725
 2004-01-09 06:02:20 +00:00
Brian Gaeke
960707c335 Put all LLVM code into the llvm namespace, as per bug 109. 
llvm-svn: 9903
 2003-11-11 22:41:34 +00:00
Misha Brukman
ad03afcb34 Declare FunctionPasses as such so that they can be used in FunctionPassManager. 
llvm-svn: 9768
 2003-11-07 17:20:18 +00:00
John Criswell
482202a601 Added LLVM project notice to the top of every C++ source file. 
Header files will be on the way.

llvm-svn: 9298
 2003-10-20 19:43:21 +00:00
Chris Lattner
b94550e537 Change the Opcode enum for PHI nodes from "Instruction::PHINode" to "Instruction::PHI" to be more consistent with the other instructions. 
llvm-svn: 9269
 2003-10-19 21:34:28 +00:00
Chris Lattner
f95d9b99b3 Decrease usage of use_size() 
llvm-svn: 9135
 2003-10-15 16:48:29 +00:00
Misha Brukman
e051f86a3d Credits now go into the top-level CREDITS.TXT 
llvm-svn: 8662
 2003-09-22 21:57:56 +00:00
Misha Brukman
7eb05a170a Spell `necessary' correctly. 
llvm-svn: 7944
 2003-08-18 14:43:39 +00:00
Chris Lattner
8ac196dd3b Assign arguments different ranks so they get grouped together 
llvm-svn: 7813
 2003-08-13 16:16:26 +00:00
Chris Lattner
98b3ecddec Fix bug: Reassociate/2003-08-12-InfiniteLoop.ll 
llvm-svn: 7792
 2003-08-12 21:45:24 +00:00
Chris Lattner
58c7eb60ec Assign finer grained ranks, make sure to reassociate top-level after reassociating bottom level 
llvm-svn: 7787
 2003-08-12 20:14:27 +00:00
Chris Lattner
8abcd56c74 DEBUG got moved to Support/Debug.h 
llvm-svn: 7492
 2003-08-01 22:15:03 +00:00
Chris Lattner
3666378690 Fix spelling 
llvm-svn: 5983
 2003-05-02 19:26:34 +00:00
Chris Lattner
889f620841 Remove unnecesary &*'s 
llvm-svn: 5872
 2003-04-23 16:37:45 +00:00
Chris Lattner
4869f3700e Rename Instruction::hasSideEffects() -> mayWriteToMemory() 
llvm-svn: 5620
 2003-02-24 20:48:32 +00:00
Chris Lattner
3aa7767352 Fix a huge performance problem in reassociate by introducing a 
rank map cache for instruction ranks

llvm-svn: 5030
 2002-12-15 03:56:00 +00:00
Chris Lattner
f96c8befe0 Minor changes: 
* Reword comment to make more clear
  * Don't print out BB's after modification made
  * Don't delete and new an instruction when we need to move something, just move it.

llvm-svn: 5029
 2002-12-15 03:49:50 +00:00
Chris Lattner
8fdf75cde5 Fixes to the reassociate pass to make it respect dominance properties 
Huge thanks go to Casey Carter for writing this fix, reassociate is now
reoperational!

llvm-svn: 4471
 2002-10-31 17:12:59 +00:00
Chris Lattner
820d971233 - Rename AnalysisUsage::preservesAll to getPreservesAll & preservesCFG to 
setPreservesCFG to be less confusing.

llvm-svn: 4255
 2002-10-21 20:00:28 +00:00
Chris Lattner
bf3a099a62 Updates to work with recent Statistic's changes: 
* Renamed StatisticReporter.h/cpp to Statistic.h/cpp
    * Broke constructor to take two const char * arguments instead of one, so
      that indendation can be taken care of automatically.
    * Sort the list by pass name when printing
    * Make sure to print all statistics as a group, instead of randomly when
      the statistics dtors are called.
    * Updated ProgrammersManual with new semantics.

llvm-svn: 4002
 2002-10-01 22:38:41 +00:00
Chris Lattner
28a8d2468a Simplify code (somtimes dramatically), by using the new "auto-insert" feature 
of instruction constructors.

llvm-svn: 3656
 2002-09-10 17:04:02 +00:00
Chris Lattner
c8b7092e54 * Add support for different "PassType's" 
* Add new RegisterOpt/RegisterAnalysis templates for registering passes that
  are to show up in opt or analyze
* Register Analyses now
* Change optimizations to use RegisterOpt instead of RegisterPass
* Add support for different "PassType's"
* Add new RegisterOpt/RegisterAnalysis templates for registering passes that
  are to show up in opt or analyze
* Register Analyses now
* Change optimizations to use RegisterOpt instead of RegisterPass
* Remove getPassName implementations from various subclasses

llvm-svn: 3113
 2002-07-26 21:12:46 +00:00
Chris Lattner
10073a9080 *** empty log message *** 
llvm-svn: 3075
 2002-07-25 06:17:51 +00:00
Chris Lattner
b28b680155 *** empty log message *** 
llvm-svn: 3016
 2002-07-23 18:06:35 +00:00
Chris Lattner
113f4f4609 MEGAPATCH checkin. 
For details, See: docs/2002-06-25-MegaPatchInfo.txt

llvm-svn: 2779
 2002-06-25 16:13:24 +00:00
Chris Lattner
71cbd42b98 Use the new DEBUG(x) macro to allow debugging code to be enabled on the commandline 
llvm-svn: 2713
 2002-05-22 17:17:27 +00:00
Chris Lattner
7bc532dded * Make debug output conditional on #define 
* Add optimization to rank computation to not recursively search when
  unneccesary.
* More agressively negate expressions to open reassociation opportunities.
* Linearize (A+B)+(C+D) into ((A+B)+C)+D

llvm-svn: 2637
 2002-05-16 04:37:07 +00:00
Chris Lattner
0b18c1d64e Add support for printing out statistics information when -stats is added to 
the command line

llvm-svn: 2601
 2002-05-10 15:38:35 +00:00
Chris Lattner
6bd7ac6205 Give the longer name to the instruction that will probably be eliminated later 
llvm-svn: 2581
 2002-05-09 20:11:23 +00:00
Chris Lattner
c0f5800678 Initial checkin of expression reassociation pass 
llvm-svn: 2559
 2002-05-08 22:19:27 +00:00