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3024 Commits

Author SHA1 Message Date
Chris Lattner
0f5ab645eb Generalize not and neg comparison testers to allow constant to be considered not'able and neg'able. This 
allows optimization of this:
int %test4(int %A, int %B) {
        %a = xor int %A, -1
        %c = and int %a, 5    ; 5 = ~c2
        %d = xor int %c, -1
        ret int %d
}

into this:
int %test4(int %A, int %B) {            ; No predecessors!
        %c.demorgan = or int %A, -6             ; <int> [#uses=1]
        ret int %c.demorgan
}

llvm-svn: 5736
 2003-03-10 23:06:50 +00:00
Chris Lattner
5e5950b7e0 Fix ConstantUInt::isAllOnesValue 
llvm-svn: 5734
 2003-03-10 22:39:02 +00:00
Chris Lattner
3eca9aaa0a Generalize (A+c1)+c2 optimization to work with all associative operators 
llvm-svn: 5733
 2003-03-10 21:43:22 +00:00
Chris Lattner
9dec4368c0 Minor change, no functionality diff 
llvm-svn: 5731
 2003-03-10 19:20:30 +00:00
Chris Lattner
5fbfe9b9a8 Fix bug: (x << 100) wasn't folded to 0, but (x >> 100) was (when x is unsigned) 
Implement new shift optimizations for shifting the result of a shift.

llvm-svn: 5729
 2003-03-10 19:16:08 +00:00
Chris Lattner
5e6fb8b8d5 Implement: (A|B)^B == A & (~B) 
llvm-svn: 5728
 2003-03-10 18:24:17 +00:00
Chris Lattner
9f2f48a648 Fix bug: SimplifyCFG/2003-03-07-DominateProblem.ll 
llvm-svn: 5722
 2003-03-07 18:13:41 +00:00
Chris Lattner
0509f2bb59 Clean up cruft 
llvm-svn: 5720
 2003-03-06 23:23:32 +00:00
Chris Lattner
90932ffc26 Remove #include 
Extend getNullValue to work with struct and array types

llvm-svn: 5718
 2003-03-06 21:02:18 +00:00
Chris Lattner
1bb2b2b8c9 Infrastructure for more compact bytecode files and REAL support for versioning 
llvm-svn: 5716
 2003-03-06 17:55:45 +00:00
Chris Lattner
70b5574318 s/Method/Function in variable and method names 
llvm-svn: 5715
 2003-03-06 17:18:14 +00:00
Chris Lattner
66c7c883d3 Continue simplifying error handling, s/method/function 
llvm-svn: 5714
 2003-03-06 17:15:19 +00:00
Chris Lattner
5210697f31 Cleanup error handling constructs 
llvm-svn: 5713
 2003-03-06 17:03:28 +00:00
Chris Lattner
84c6e94784 Pull common code out 
llvm-svn: 5712
 2003-03-06 16:50:32 +00:00
Chris Lattner
8080df315f Remove unneccesary forward decl 
llvm-svn: 5710
 2003-03-06 16:37:29 +00:00
Chris Lattner
f9b71aab86 Use the std namespace explicitly 
llvm-svn: 5708
 2003-03-06 16:32:25 +00:00
Chris Lattner
bd009a8938 Implement %test7 in InstCombine/getelementptr.ll 
llvm-svn: 5704
 2003-03-05 22:33:14 +00:00
Chris Lattner
4a9f0be9dd Implement CFGSimplify/PhiBlockMerge*.ll 
llvm-svn: 5702
 2003-03-05 21:36:33 +00:00
Chris Lattner
92a316864d Simplify some of the PHI node interfaces 
llvm-svn: 5700
 2003-03-05 21:15:12 +00:00
Chris Lattner
e025920ff8 Implement testcase CFGSimplify/EqualPHIEdgeBlockMerge.ll 
llvm-svn: 5699
 2003-03-05 21:01:52 +00:00
Chris Lattner
9d545c8aa3 Fix bug: BasicAA/2003-03-04-GEPCrash.ll 
llvm-svn: 5695
 2003-03-04 16:40:17 +00:00
Chris Lattner
4eaaa99b93 Convert LICM over to use AliasSetTracker. Besides being nicer, this automatically 
allows LICM to use access sizes to help alias analysis be more precise.

llvm-svn: 5693
 2003-03-03 23:32:45 +00:00
Chris Lattner
c8a5c7e4a7 Fix bug: Assembler/2003-03-03-DuplicateConstant.ll 
llvm-svn: 5692
 2003-03-03 23:28:55 +00:00
Chris Lattner
eb82f294bd ADd two new 'add' methods 
llvm-svn: 5691
 2003-03-03 23:28:05 +00:00
Chris Lattner
db94bd1661 Eliminate tons of bogus warnings 
llvm-svn: 5686
 2003-03-03 19:57:46 +00:00
Chris Lattner
a49e96dda5 Change the mem2reg interface to accept a TargetData argument 
llvm-svn: 5685
 2003-03-03 17:25:18 +00:00
Chris Lattner
1778154dc7 Don't apply type information to load instructions if it will cause collapsing 
llvm-svn: 5684
 2003-03-03 17:13:31 +00:00
Chris Lattner
a29ba21066 Fix a problem with negative indexes 
llvm-svn: 5681
 2003-03-02 23:43:34 +00:00
Chris Lattner
09c35df4e9 Fix bug: LICM/2003-02-28-PromoteDifferentType.ll 
llvm-svn: 5675
 2003-02-28 19:21:40 +00:00
Chris Lattner
77840ef407 Add dump method for Loops 
llvm-svn: 5671
 2003-02-28 16:54:45 +00:00
Chris Lattner
dec7727a9f Fix bug I introduced yesterday :( 
llvm-svn: 5669
 2003-02-28 16:54:17 +00:00
Chris Lattner
e2aebf5906 Fix bug: LICM/2003-02-27-PreheaderExitNodeUpdate.ll 
llvm-svn: 5667
 2003-02-28 03:07:54 +00:00
Chris Lattner
d64f135965 Fix bug: 2003-02-27-PreheaderExitNodeUpdate.ll by updating exit node info 
llvm-svn: 5664
 2003-02-27 22:48:57 +00:00
Chris Lattner
030a114dba Simplify a bit by using a new member function 
llvm-svn: 5662
 2003-02-27 22:48:08 +00:00
Chris Lattner
c37308604f Change behavior of changeExitBlock function to replace all instances of exit block 
llvm-svn: 5661
 2003-02-27 22:37:44 +00:00
Chris Lattner
74b9aaa89c Add a new assertion to check that stuff is happening right 
Ironically the exit block modification code wasn't updating the exit block
information itself.  Fix this.

llvm-svn: 5659
 2003-02-27 22:31:07 +00:00
Chris Lattner
d40fa5ca2f Fix bug: 2003-02-27-StoreSinkPHIs.ll 
llvm-svn: 5658
 2003-02-27 21:59:36 +00:00
Chris Lattner
e1d4fb3c2c Fix bug: LICM/2003-02-27-PreheaderProblem.ll 
There may be a single outside predecessor and
still need a new loop-preheader if the predecessor has multiple
successors.

llvm-svn: 5656
 2003-02-27 21:51:38 +00:00
Chris Lattner
e8dda81b22 * Don't forget to update Loop information! 
* Remove bogus assertion: there may be a single outside predecessor and
    still need a new loop-preheader if the predecessor has multiple
    successors.  See bug: LICM/2003-02-27-PreheaderProblem.ll

llvm-svn: 5655
 2003-02-27 21:50:19 +00:00
Chris Lattner
3b3cce733d Replace assertion with a handler. 
llvm-svn: 5653
 2003-02-27 20:55:48 +00:00
Chris Lattner
b078b28fa5 * Significant changes to the preheader insertion pass: 
- Now we perform loop exit-block splitting to ensure exit blocks are
     always dominated by the loop header.
   - We now preserve dominance frontier information
   - This fixes bug: LICM/2003-02-26-LoopExitNotDominated.ll

llvm-svn: 5652
 2003-02-27 20:27:08 +00:00
Chris Lattner
ac72aab6e7 - LoopInfo now calculates and tracks loop exit blocks 
llvm-svn: 5650
 2003-02-27 00:38:34 +00:00
Chris Lattner
5baf8bb966 Make the aliassettracker much more precise by actually tracking size 
information for various accesses.  What a concept.

llvm-svn: 5647
 2003-02-26 22:11:00 +00:00
Chris Lattner
933b11a154 Fix bug: BasicAA/2003-02-26-AccessSizeTest.ll 
llvm-svn: 5645
 2003-02-26 21:57:23 +00:00
Chris Lattner
e923b037b7 Fix several bugs in basic-aa 
llvm-svn: 5643
 2003-02-26 21:28:49 +00:00
Chris Lattner
ea424f3aff Rename -no-* to -disable-* 
llvm-svn: 5642
 2003-02-26 20:00:41 +00:00
Chris Lattner
4e622afb23 Add new -no-aa implementation 
llvm-svn: 5641
 2003-02-26 19:57:10 +00:00
Chris Lattner
721f9fc770 Move BasicAA pass out to it's own header file 
llvm-svn: 5640
 2003-02-26 19:41:54 +00:00
Chris Lattner
4162adcfee Adjust to implement new AA interface 
llvm-svn: 5638
 2003-02-26 19:29:36 +00:00
Chris Lattner
4d57299049 Adjust to new AA interface 
llvm-svn: 5637
 2003-02-26 19:29:16 +00:00