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3100 Commits

Author SHA1 Message Date
Chris Lattner
fcf21a75b0 Fix bug in previous checkin 
llvm-svn: 10798
 2004-01-12 19:47:05 +00:00
Chris Lattner
c1e7cc0fbe Eliminate use of ConstantHandling and ConstantExpr::getShift interfaces 
llvm-svn: 10796
 2004-01-12 19:35:11 +00:00
Chris Lattner
d7ccc9e5a5 Add header file I accidentally removed in teh shuffle 
llvm-svn: 10795
 2004-01-12 19:15:20 +00:00
Chris Lattner
c9fb4a3b89 Remove use of the ConstantHandling interfaces 
llvm-svn: 10793
 2004-01-12 19:12:50 +00:00
Chris Lattner
429963742e Remove use of ConstantExpr::getShift 
llvm-svn: 10792
 2004-01-12 19:10:58 +00:00
Chris Lattner
1b7d4d7b63 Don't use ConstantExpr::getShift anymore 
llvm-svn: 10791
 2004-01-12 19:08:43 +00:00
Chris Lattner
2853a7ed22 Remove use of ConstantHandling 
llvm-svn: 10789
 2004-01-12 18:35:03 +00:00
Chris Lattner
118a76cb2f Remove unneeded #include 
llvm-svn: 10788
 2004-01-12 18:33:54 +00:00
Chris Lattner
fc6c859a0c Move llvm::ConstantFoldInstruction from VMCore to here, next to ConstantFoldTerminator 
llvm-svn: 10785
 2004-01-12 18:25:22 +00:00
Chris Lattner
81d8822396 Remove uses of ConstantHandling itf 
llvm-svn: 10783
 2004-01-12 18:12:44 +00:00
Chris Lattner
0fe5b32c01 Use constantexprs for casts. Eliminate use of the ConstantHandling interfaces 
llvm-svn: 10779
 2004-01-12 17:43:40 +00:00
Chris Lattner
fe992d4332 Fix fairly severe bug in my last checking where we treated all unfoldable 
constants as being "true" when evaluating branches.  This was introduced
because we now create constantexprs for the constants instead of failing the
fold.

llvm-svn: 10778
 2004-01-12 17:40:36 +00:00
Chris Lattner
49f74522ec * Implement minor performance optimization for the getelementptr case 
* Implement SCCP of load instructions, implementing Transforms/SCCP/loadtest.ll
  This allows us to fold expressions like "foo"[2], even if the pointer is only
  a conditional constant.

llvm-svn: 10767
 2004-01-12 04:29:41 +00:00
Chris Lattner
7e8af38637 Do not hack on volatile loads. I'm not sure what the point of a volatile load 
from constant memory is, but lets not take chances.

llvm-svn: 10765
 2004-01-12 04:13:56 +00:00
Chris Lattner
05fe6847a8 Implement SCCP/phitest.ll 
llvm-svn: 10763
 2004-01-12 03:57:30 +00:00
Chris Lattner
fafa2ff2d6 Implement Transforms/ScalarRepl/phinodepromote.ll, which is an important 
case that the C/C++ front-end generates.

llvm-svn: 10761
 2004-01-12 01:18:32 +00:00
Chris Lattner
3bcecb92f3 Update obsolete comments 
Fix iterator invalidation problems which was causing -mstrip to miss some
entries, and read free'd memory.  This shrinks the symbol table of 254.gap
from 333 to 284 bytes!  :)

llvm-svn: 10751
 2004-01-10 21:36:49 +00:00
Chris Lattner
df3c342a4c Finegrainify namespacification 
llvm-svn: 10727
 2004-01-09 06:12:26 +00:00
Chris Lattner
fdf788eebd Remove dependence on structure index type. s/MT/FT 
llvm-svn: 10726
 2004-01-09 06:02:51 +00:00
Chris Lattner
49525f8cf4 Finegrainify namespacification 
llvm-svn: 10725
 2004-01-09 06:02:20 +00:00
Chris Lattner
ff66958154 Finegrainify namespacification 
add flags for PR82

llvm-svn: 10724
 2004-01-09 05:53:38 +00:00
Chris Lattner
9cc1a0e40d Inching towards fixing PR82 
llvm-svn: 10722
 2004-01-09 05:44:50 +00:00
Chris Lattner
59d2d7fc33 Improve encapsulation in the Loop and LoopInfo classes by eliminating the 
getSubLoops/getTopLevelLoops methods, replacing them with iterator-based
accessors.

llvm-svn: 10714
 2004-01-08 00:09:44 +00:00
Chris Lattner
56db5e98c8 Merging constants can cause further room for improvement. Iterate until 
we converge

llvm-svn: 10618
 2003-12-28 07:19:08 +00:00
Chris Lattner
30513e0a3a rename ClassifyExpression -> ClassifyExpr 
llvm-svn: 10592
 2003-12-23 08:04:08 +00:00
Chris Lattner
7e755e443f More minor non-functional changes. This now computes the exit condition, though 
it doesn't do anything with it.

llvm-svn: 10590
 2003-12-23 07:47:09 +00:00
Chris Lattner
93bfb6c741 Remove extraneous #include 
finegrainify namespacification

llvm-svn: 10589
 2003-12-23 07:43:38 +00:00
Chris Lattner
c2ee05427e Fix memory corruption bug PR193 
llvm-svn: 10586
 2003-12-22 23:49:36 +00:00
Chris Lattner
a02d5aa6ce Don't mind me, I'm just refactoring away. This patch makes room for LFTR, but 
contains no functionality changes.

llvm-svn: 10583
 2003-12-22 09:53:29 +00:00
Chris Lattner
6449dcefbc Implement IndVarsSimplify/pointer-indvars.ll, transforming pointer 
arithmetic into "array subscripts"

llvm-svn: 10580
 2003-12-22 05:02:01 +00:00
Chris Lattner
d3678bc7c5 Fix PR194 
llvm-svn: 10573
 2003-12-22 03:58:44 +00:00
Chris Lattner
fc7bdac1b3 Fix ADCE/2003-12-19-MergeReturn.llx 
llvm-svn: 10539
 2003-12-19 09:08:34 +00:00
Chris Lattner
918460190f Remove the wierd "Operands" loop, by traversing basicblocks in reverse order 
llvm-svn: 10536
 2003-12-19 08:18:16 +00:00
Chris Lattner
547192d688 Implement LICM/sink_multiple.ll, by sinking all possible instructions in the 
loop before hoisting any.

llvm-svn: 10534
 2003-12-19 07:22:45 +00:00
Chris Lattner
031a3f8cc7 Generalize a special case to fix PR187 
llvm-svn: 10531
 2003-12-19 06:27:08 +00:00
Chris Lattner
91daeb5431 Factor code out into the Utils library 
llvm-svn: 10530
 2003-12-19 05:58:40 +00:00
Chris Lattner
04efa4b155 Add new function 
llvm-svn: 10529
 2003-12-19 05:56:28 +00:00
John Criswell
b22e9b4b35 Reverted back to previous revision - this was previously merged 
according to the CVS log messages.

llvm-svn: 10517
 2003-12-18 17:19:19 +00:00
John Criswell
86a3a48697 Merged in RELEASE_11. 
llvm-svn: 10516
 2003-12-18 16:43:17 +00:00
Chris Lattner
9e2b42a0c8 When we delete instructions from the loop, make sure to remove them from the 
AliasSetTracker as well.

llvm-svn: 10507
 2003-12-18 08:12:32 +00:00
Chris Lattner
6c08bb8b8e Fix for PR185 & IndVarsSimplify/2003-12-15-Crash.llx 
llvm-svn: 10473
 2003-12-15 17:34:02 +00:00
Chris Lattner
884e824534 Refactor code just a little bit, allowing us to implement TailCallElim/return_constant.ll 
llvm-svn: 10467
 2003-12-14 23:57:39 +00:00
Chris Lattner
d1c371c32c Do not promote volatile alias sets into registers 
llvm-svn: 10458
 2003-12-14 04:52:31 +00:00
Chris Lattner
34399dda2d Fix LICM/2003-12-11-SinkingToPHI.ll, and quite possibly all of the other known problems in the universe. 
llvm-svn: 10409
 2003-12-11 22:23:32 +00:00
Chris Lattner
027253b0d5 verifyFunction depends on dominator info, which levelraise does not declare 
that it needs.  This is pretty scary code!  This fixes

Regression.Transforms.LevelRaise.2002-07-16-SourceAndDestCrash
Regression.Transforms.LevelRaise.2002-07-31-AssertionFailure

llvm-svn: 10406
 2003-12-11 21:47:37 +00:00
Chris Lattner
6281fd3ead Fix bug: LICM/sink_multiple_exits.ll 
Thanks for pointing this out John  :)

llvm-svn: 10387
 2003-12-10 22:35:56 +00:00
Chris Lattner
55c2113b7b Don't allow dead instructions to stop sinking early. 
llvm-svn: 10386
 2003-12-10 20:43:29 +00:00
Chris Lattner
713907e2b8 Fix bug: IndVarsSimplify/2003-12-10-RemoveInstrCrash.llx 
llvm-svn: 10385
 2003-12-10 20:43:04 +00:00
Chris Lattner
7e5bd59da2 Finegrainify namespacification 
Fix bug: LowerInvoke/2003-12-10-Crash.llx

llvm-svn: 10382
 2003-12-10 20:22:42 +00:00
Chris Lattner
ccd9f3c1f8 Finegrainify namespacification 
Reorder #includes
Implement: IndVarsSimplify/2003-12-10-IndVarDeadCode.ll

llvm-svn: 10376
 2003-12-10 18:06:47 +00:00