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873 Commits

Author SHA1 Message Date
Chris Lattner defe5c72e8 Implement: FunctionResolve/2003-04-18-ForwardDeclGlobal.ll 
llvm-svn: 5816
 2003-04-19 00:15:27 +00:00
Chris Lattner 5f5d985583 Fix bug: Mem2reg/2003-04-18-DeadBlockProblem.ll 
llvm-svn: 5810
 2003-04-18 19:25:22 +00:00
Chris Lattner 424132aa57 Global constants CAN be external 
llvm-svn: 5808
 2003-04-18 04:34:29 +00:00
Chris Lattner e9f4232a70 Refactor CloneFunction to expose the new CloneBasicBlock function 
llvm-svn: 5806
 2003-04-18 03:50:09 +00:00
Chris Lattner de6f87ba07 New const_cast instead of c style cast 
llvm-svn: 5805
 2003-04-18 03:49:49 +00:00
Chris Lattner 46b3d30bf6 Change the interface to constant expressions to allow automatic folding 
llvm-svn: 5793
 2003-04-16 22:40:51 +00:00
Chris Lattner 379a8d2d1c Add new linkage types to support a real frontend 
llvm-svn: 5786
 2003-04-16 20:28:45 +00:00
Chris Lattner 01587d4ad1 Make help message more clear 
llvm-svn: 5775
 2003-04-13 03:50:14 +00:00
Chris Lattner 18b1bf67b2 * Fix bug: Mem2Reg/2003-04-10-DFNotFound.ll 
* Make Mem2Reg assign version numbers now for renamed variables instead of
  .mem2reg suffixes.  This produces what people think of as SSA.

llvm-svn: 5771
 2003-04-10 19:41:13 +00:00
Chris Lattner 9023155621 Initial checkin of PRE on LLVM. This implementation is still lacking in 
several ways:

 * Load expressions are not PRE'd well.  Alias Analysis should be used to
   get accurate information when computing anticipatibility.
 * The expression collection implementation does not handle PHI nodes properly,
   thus the implementation misses many opportunities to PRE.
 * This code could be sped up quite a bit

Despite these flaws, the code seems to work well, and handles PR's as one
would expect.

llvm-svn: 5759
 2003-03-31 19:55:43 +00:00
Chris Lattner 07f7e5d3b5 * We now preserve the no-critical-edge pass (because we cannot insert critical edges) 
* Small modification to be more efficient

llvm-svn: 5757
 2003-03-31 17:30:25 +00:00
Chris Lattner c42046f9f1 Move BreakCriticalEdges pass to lib/Transforms/Utils 
llvm-svn: 5754
 2003-03-21 21:43:19 +00:00
Chris Lattner 7fb29e19f0 Add the following instcombine xforms: 
- Implement simple reassociation: (A|c1)|(B|c2) == (A|B)|(c1|c2)
  - (A & C1)+(B & C2) -> (A & C1)|(B & C2) iff C1&C2 == 0
  - (A & C1)^(B & C2) -> (A & C1)|(B & C2) iff C1&C2 == 0

llvm-svn: 5743
 2003-03-11 00:12:48 +00:00
Chris Lattner 934a64cfa4 Implement: -A*-B == A*B 
llvm-svn: 5740
 2003-03-10 23:23:04 +00:00
Chris Lattner 3e327a4334 Add new transformation: // (~A | ~B) == (~(A & B)) 
llvm-svn: 5738
 2003-03-10 23:13:59 +00:00
Chris Lattner bb74e2284a 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 dcf240a649 Generalize (A+c1)+c2 optimization to work with all associative operators 
llvm-svn: 5733
 2003-03-10 21:43:22 +00:00
Chris Lattner 3695257724 Minor change, no functionality diff 
llvm-svn: 5731
 2003-03-10 19:20:30 +00:00
Chris Lattner e8d6c604bb 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 1bbb7b6f19 Implement: (A|B)^B == A & (~B) 
llvm-svn: 5728
 2003-03-10 18:24:17 +00:00
Chris Lattner 569a57f9ff Fix bug: SimplifyCFG/2003-03-07-DominateProblem.ll 
llvm-svn: 5722
 2003-03-07 18:13:41 +00:00
Chris Lattner 235af5673b Implement %test7 in InstCombine/getelementptr.ll 
llvm-svn: 5704
 2003-03-05 22:33:14 +00:00
Chris Lattner e54d214fcb Implement CFGSimplify/PhiBlockMerge*.ll 
llvm-svn: 5702
 2003-03-05 21:36:33 +00:00
Chris Lattner 31116bafed Implement testcase CFGSimplify/EqualPHIEdgeBlockMerge.ll 
llvm-svn: 5699
 2003-03-05 21:01:52 +00:00
Chris Lattner 0592bb7654 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 50cbb9081a Eliminate tons of bogus warnings 
llvm-svn: 5686
 2003-03-03 19:57:46 +00:00
Chris Lattner e27406eb59 Change the mem2reg interface to accept a TargetData argument 
llvm-svn: 5685
 2003-03-03 17:25:18 +00:00
Chris Lattner e19a9f8ef7 Fix bug: LICM/2003-02-28-PromoteDifferentType.ll 
llvm-svn: 5675
 2003-02-28 19:21:40 +00:00
Chris Lattner 49eb0e3026 Fix bug I introduced yesterday :( 
llvm-svn: 5669
 2003-02-28 16:54:17 +00:00
Chris Lattner 32a39c26e0 Fix bug: LICM/2003-02-27-PreheaderExitNodeUpdate.ll 
llvm-svn: 5667
 2003-02-28 03:07:54 +00:00
Chris Lattner f2d9f94a33 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 10b2b055e8 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 1ad80e2511 Fix bug: 2003-02-27-StoreSinkPHIs.ll 
llvm-svn: 5658
 2003-02-27 21:59:36 +00:00
Chris Lattner 4e2fbfb4c3 * 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 dbb05b0f09 Replace assertion with a handler. 
llvm-svn: 5653
 2003-02-27 20:55:48 +00:00
Chris Lattner 650096a061 * 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 71b82bb494 Convert to work with new AliasAnalysis interface by conservatively assuming all pointers are arbitrarily large accesses 
llvm-svn: 5636
 2003-02-26 19:28:57 +00:00
Chris Lattner 4869f3700e Rename Instruction::hasSideEffects() -> mayWriteToMemory() 
llvm-svn: 5620
 2003-02-24 20:48:32 +00:00
Chris Lattner 45d67d6ea7 Initial implementation of Loop invariant memory->scalar promotion 
llvm-svn: 5613
 2003-02-24 03:52:32 +00:00
Chris Lattner 26f159046c Split mem2reg promotion into two parts: a function which does the work, and 
a pass which wraps the function.  This allows other passes to use the functionality

llvm-svn: 5610
 2003-02-22 23:57:48 +00:00
Chris Lattner 04cad6a010 Clean up std namespace references 
llvm-svn: 5608
 2003-02-22 22:25:17 +00:00
Chris Lattner 57c8d99bbd 4 new transformations: 
* X*C + X --> X * (C+1)
  * X + X*C --> X * (C+1)
  * X - X*C --> X * (1-C)
  * X*C - X --> X * (C-1)

llvm-svn: 5592
 2003-02-18 19:57:07 +00:00
Chris Lattner 3082c5a070 Add a variety of new transformations: 
* A & ~A == 0
  * A / (2^c) == A >> c  if unsigned
  * 0 / A == 0
  * 1.0 * A == A
  * A * (2^c) == A << c
  * A ^ ~A == -1
  * A | ~A == -1
  * 0 % X = 0
  * A % (2^c) == A & (c-1) if unsigned
  * A - (A & B) == A & ~B
  * -1 - A == ~A

llvm-svn: 5587
 2003-02-18 19:28:33 +00:00
Anand Shukla f8c09ee341 Changes to runtime framework 
llvm-svn: 5572
 2003-02-14 20:41:53 +00:00
Chris Lattner 04c9274e50 Fix a bug that cause a crash resolving questionable function calls 
llvm-svn: 5567
 2003-02-14 19:12:29 +00:00
Chris Lattner ade85ecf77 Fix a misunderstanding of the standard associative containers 
llvm-svn: 5565
 2003-02-14 05:34:36 +00:00
Chris Lattner 222e70a9fa Fix bug: LevelRaise/2003-02-13-CallRaise.ll 
llvm-svn: 5562
 2003-02-14 03:07:17 +00:00
Chris Lattner eaec4be9ea Revert Anand's patch which broke the build 
llvm-svn: 5525
 2003-02-10 15:55:50 +00:00
Anand Shukla 893dfda486 *** empty log message *** 
llvm-svn: 5522
 2003-02-09 21:15:36 +00:00
Chris Lattner 4ecd2d0125 Fix a problem Sumant was running into 
llvm-svn: 5499
 2003-02-06 22:03:46 +00:00
Chris Lattner 82723d73ba Split public interface out into header file 
llvm-svn: 5472
 2003-02-03 19:08:18 +00:00
Chris Lattner c44c04af44 Change DSGraph stuff to use hash_(set|map) instead of std::(set|map) 
This change provides a small (3%) but consistent speedup

llvm-svn: 5460
 2003-02-01 04:52:08 +00:00
Chris Lattner f683599915 Fix typo 
llvm-svn: 5458
 2003-02-01 04:50:59 +00:00
Chris Lattner 68f63f779c Fix a bug resolving sprintf(...) to sprintf(char*, char*, ...) 
llvm-svn: 5446
 2003-01-30 22:38:44 +00:00
Chris Lattner 47948952dd Actually print the function _name_ if there is a problem 
llvm-svn: 5443
 2003-01-30 21:33:07 +00:00
Chris Lattner 069c158bc5 * Fix linking of opaque types and their non-opaque versions 
* Fix bug: Linker/2003-01-30-LinkerTypeRename.ll

llvm-svn: 5441
 2003-01-30 20:53:43 +00:00
Chris Lattner 2e65dd3575 Eliminate using decls 
llvm-svn: 5439
 2003-01-30 19:53:34 +00:00
Chris Lattner b2d9f7dcc9 * Fix function resolution for varargs function to generate incorrect bytecode instead of crashing 
* remove using decls
 CVS: ----------------------------------------------------------------------

llvm-svn: 5437
 2003-01-30 18:22:32 +00:00
Chris Lattner 747f67c96f Fix levelraise/2003-01-30-ShiftCrash.ll 
llvm-svn: 5435
 2003-01-30 17:10:41 +00:00
Chris Lattner 6e07784692 Initial checkin of pool allocation code 
llvm-svn: 5432
 2003-01-29 21:12:13 +00:00
Chris Lattner d1fd7e958c Disable construction of pool allocator 
llvm-svn: 5422
 2003-01-24 20:13:20 +00:00
Chris Lattner 6a3586b839 Fix bug: LevelRaise/2003-01-22-GEPProblem.ll 
llvm-svn: 5407
 2003-01-23 02:39:10 +00:00
Chris Lattner 6fa1629c47 Fix bug: ADCE/2003-01-22-PredecessorProblem.ll 
llvm-svn: 5405
 2003-01-23 02:12:18 +00:00
Chris Lattner 57fd307f6d Rename include/llvm/Transforms/Instrumentation/TraceFunctions.h to Instrumentation.h 
llvm-svn: 5281
 2003-01-14 22:39:29 +00:00
Chris Lattner e885b1f596 Fix typeo 
llvm-svn: 5278
 2003-01-14 22:34:36 +00:00
Chris Lattner 580bcaca7d Remove unused header and function 
llvm-svn: 5277
 2003-01-14 22:34:13 +00:00
Chris Lattner 2f04a0da4e Clean up #includes 
Move graph.h into local directory

llvm-svn: 5276
 2003-01-14 22:33:56 +00:00
Chris Lattner 049112106e Fix bug 
llvm-svn: 5264
 2003-01-14 19:04:43 +00:00
Chris Lattner 803c66bc64 Add debugging helper 
llvm-svn: 5235
 2003-01-13 00:52:25 +00:00
Chris Lattner b9636a70e5 Make sure to handle %'s in strings correctly so that the names of BB's and functions are actually printed! 
llvm-svn: 5234
 2003-01-13 00:52:14 +00:00
Chris Lattner 661841c49b Fix references to functions 
llvm-svn: 5222
 2003-01-13 00:27:23 +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
Vikram S. Adve d9676ed983 External routines used to identify Cilk operations inserted by the 
parallelization pass.

llvm-svn: 4965
 2002-12-10 13:08:48 +00:00
Vikram S. Adve c864ab1e33 This file implements the function DemoteRegToStack(), which takes a 
virtual register computed by an Instruction& X and replaces it with
a slot in the stack frame, allocated via alloca.

llvm-svn: 4964
 2002-12-10 13:07:58 +00:00
Vikram S. Adve 9a672d17ae This file implements a pass that automatically parallelizes a program, 
using the Cilk multi-threaded runtime system to execute parallel code.
The current version inserts too many sync() operations in the program
because it does not attempt to optimize their placement.

llvm-svn: 4962
 2002-12-10 00:43:34 +00:00
Chris Lattner 1ee7f8e6bb Fix bug that was bugging bugpoint 
llvm-svn: 4953
 2002-12-07 21:27:16 +00:00
Chris Lattner 688ac5b723 Remove dead code 
llvm-svn: 4952
 2002-12-07 18:42:13 +00:00
Chris Lattner c6509f487b Fix bug: 2002-12-05-MissedConstProp.ll pointed out by Casey Carter 
llvm-svn: 4935
 2002-12-05 22:41:53 +00:00
Chris Lattner f4c0811faa Fix big bug introduced with symbol table changes 
llvm-svn: 4885
 2002-12-03 18:32:30 +00:00
Chris Lattner e4dbb1af42 Initial checkin of Module cloning support stuff 
llvm-svn: 4788
 2002-11-20 20:47:41 +00:00
Chris Lattner 8016a16ed0 Fix symbol table problem 
llvm-svn: 4785
 2002-11-20 19:32:43 +00:00
Chris Lattner 98cf1f5d64 - Eliminated the deferred symbol table stuff in Module & Function, it really 
wasn't an optimization and it was causing lots of bugs.

llvm-svn: 4779
 2002-11-20 18:36:02 +00:00
Chris Lattner 7c6d9d9eac Fix minor bugs 
llvm-svn: 4778
 2002-11-20 18:32:31 +00:00
Chris Lattner 84dd0f4767 Remove unneccesary #include 
llvm-svn: 4772
 2002-11-19 23:12:53 +00:00
Chris Lattner fb311d203a Implement the CloneFunction function 
llvm-svn: 4771
 2002-11-19 23:12:22 +00:00
Chris Lattner c362618f2a Minor changes to cloning interface 
llvm-svn: 4770
 2002-11-19 22:54:01 +00:00
Chris Lattner 8bce9886c3 Fix two fixmes: integrate with inlining, and document 
llvm-svn: 4769
 2002-11-19 22:04:49 +00:00
Chris Lattner b1120055b9 Rework inline pass to use cloning infrastructure to do the dirty work 
llvm-svn: 4766
 2002-11-19 21:54:07 +00:00
Chris Lattner 1666751257 Start using the new function cloning header 
llvm-svn: 4764
 2002-11-19 20:59:41 +00:00
Chris Lattner d06467db62 Move MutatStructTypes.h out of IPO 
llvm-svn: 4762
 2002-11-19 20:49:40 +00:00
Chris Lattner fb8ca4a899 Rename CloneFunction.h to Cloning.h 
llvm-svn: 4760
 2002-11-19 20:08:24 +00:00
Chris Lattner 58f9002b4a Move the function extractor pass from tools/extract into lib/Xform/IPO 
llvm-svn: 4759
 2002-11-19 18:42:59 +00:00
Chris Lattner 7a3c0671da Fix bug: 2002-11-13-PointerFunction.ll 
This should fix codegen on vortex to work much better

llvm-svn: 4704
 2002-11-13 06:54:20 +00:00
Chris Lattner 52b8fc0c35 Fix testcase: FunctionResolve/2002-11-09-ExternFn.ll 
llvm-svn: 4668
 2002-11-10 03:36:55 +00:00
Chris Lattner a2620ac156 Fix warning 
llvm-svn: 4649
 2002-11-09 00:49:43 +00:00
Chris Lattner 0da31d6648 Fix spelling error 
llvm-svn: 4645
 2002-11-08 23:18:37 +00:00
Chris Lattner 17069b342a Use the new getMainFunction() method to efficiently locate main 
llvm-svn: 4630
 2002-11-08 20:34:21 +00:00
Chris Lattner 5997c3d866 Fix bug: FunctionResolve/2002-11-07-RetMismatch.ll 
llvm-svn: 4618
 2002-11-08 00:38:20 +00:00
Chris Lattner 5d606a09ff Instcombine this away: 
%A = getelementptr [4 x int]* %M, long 0, long 0
        %B = getelementptr int* %A, long 2

llvm-svn: 4536
 2002-11-04 16:43:32 +00:00
Chris Lattner 1085bdf49f Add a transformation to turn: 
malloc Ty, C
int
  malloc [C x Ty], 1

llvm-svn: 4534
 2002-11-04 16:18:53 +00:00
Chris Lattner 0544dadbee Ack: Fix bug in previous checkin. 
llvm-svn: 4526
 2002-11-04 05:50:42 +00:00
Chris Lattner 4262f815b5 Be more generous about level raising constant expressions don't force each 
constant to one particular type.

llvm-svn: 4525
 2002-11-04 05:46:37 +00:00
Chris Lattner 669c6cf459 Make sure to _delete_ memory allocated by worklists 
llvm-svn: 4523
 2002-11-04 02:54:22 +00:00
Anand Shukla 320febba68 code to lightly instrument at branches 
llvm-svn: 4511
 2002-11-03 01:45:20 +00:00
Chris Lattner 36c05c8f69 Make sure to include name information if we have it 
llvm-svn: 4481
 2002-11-01 04:49:06 +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 12764c85e8 BreakCriticalEdges should update dominance frontier information as well as 
other dominance stuff.  Patch contributed by Casey Carter

llvm-svn: 4457
 2002-10-31 02:44:36 +00:00
Misha Brukman 632df28deb Fix spelling of `propagate'. 
llvm-svn: 4423
 2002-10-29 23:06:16 +00:00
Chris Lattner 5ae3bd630d Ensure definate initialization 
llvm-svn: 4263
 2002-10-22 23:34:11 +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 26783a5be5 * Apparently string::find doesn't work right on our sun boxes. Work around this. 
llvm-svn: 4219
 2002-10-17 16:22:08 +00:00
Chris Lattner 3ff5457b32 Really disable pool allocator 
llvm-svn: 4216
 2002-10-17 04:57:09 +00:00
Chris Lattner 149376dee5 - Change Function's so that their argument list is populated when they are 
constructed.  Before, external functions would have an empty argument list,
    now a Function ALWAYS has a populated argument list.

llvm-svn: 4149
 2002-10-13 20:57:00 +00:00
Chris Lattner 69ce8674b5 - Rename Instruction::First*Op to *OpsBegin, and Num*Ops to *OpsEnd to 
reflect the fact that it's a range being defined.

llvm-svn: 4147
 2002-10-13 19:39:16 +00:00
Chris Lattner 5f9f4e3aac Account for global variables resolved more accurately. 
llvm-svn: 4143
 2002-10-13 17:30:30 +00:00
Chris Lattner 88dbc4dbe9 Use methods that are more explanatory 
llvm-svn: 4142
 2002-10-13 17:12:47 +00:00
Anand Shukla 12b05f3880 Changed to external global var 
llvm-svn: 4120
 2002-10-12 20:33:47 +00:00
Chris Lattner 1a535e18cd Stop using DataStructureGraph.h 
llvm-svn: 4106
 2002-10-10 20:33:46 +00:00
Chris Lattner eac4dcd0bd - Dramatically simplify the ConstantMerge code now that 
Value::replaceAllUsesWith works with constants correctly.

llvm-svn: 4104
 2002-10-09 23:16:04 +00:00
Chris Lattner 013eca003a Almost a complete rewrite of FunctionResolution to now resolve functions 
and global variables.

This fixes bug: FuncResolve/2002-08-19-ResolveGlobalVarsEasier.ll
And bug: SingleSource/UnitTests/2002-10-09-ArrayResolution.c

Note that this does not fix bug:
FunctionResolve/2002-08-19-ResolveGlobalVars.ll because replaceAllUsesWith
breaks when a constantexpr is pointing to the thing being replaced.  This
is more of an infrastructure problem than anything.

llvm-svn: 4099
 2002-10-09 21:10:06 +00:00
Chris Lattner a4e2653cd7 - Rename MTy to FTy (no methods exist anymore) 
- Fix bug: LevelRaise/2002-10-08-VarArgCallInfLoop.ll

llvm-svn: 4088
 2002-10-09 00:16:00 +00:00
Chris Lattner a185db3d72 - Fix bug: LevelRaise/2002-10-08-VarArgCall.ll 
llvm-svn: 4083
 2002-10-08 22:19:25 +00:00
Chris Lattner b7368500dc - Fix bug: cee/2002-10-07-NoImmediateDominator.ll 
llvm-svn: 4081
 2002-10-08 21:53:51 +00:00
Chris Lattner caf5b504a3 Changes to support PHINode::removeIncoming changes 
llvm-svn: 4080
 2002-10-08 21:36:34 +00:00
Chris Lattner a704ac8a66 Changes to support PHINode::removeIncoming changes 
llvm-svn: 4079
 2002-10-08 21:36:33 +00:00
Chris Lattner 736709feda - Checkin LARGE number of Changes to CEE pass that will make it much more 
powerful, but that are largely disabled.  The basic idea here is that it
    is trying to forward branches across basic blocks that have PHI nodes in
    it, which are crucial to be able to handle cases like whet.ll.
    Unfortunately we are not updating SSA correctly, causing sim.c to die, and I
    don't have time to fix the regression now, so I must disable the
    functionality.

llvm-svn: 4077
 2002-10-08 21:34:15 +00:00
Chris Lattner 5ac72defc9 Expose isCriticalEdge & SplitCriticalEdge methods from crit-edges pass 
llvm-svn: 4075
 2002-10-08 21:06:27 +00:00
Chris Lattner 394617f38b It is illegal for PHI nodes to have zero values, delete the code to handle them 
llvm-svn: 4071
 2002-10-08 17:07:39 +00:00
Chris Lattner 2e0fb39d87 Fold ashr -1, X into -1 
llvm-svn: 4070
 2002-10-08 16:16:40 +00:00
Chris Lattner 68f21bcb1b Non-functionality change just to make it more clear what is going on 
llvm-svn: 4060
 2002-10-07 18:34:32 +00:00
Chris Lattner 0f5346d743 Fix bug: 2002-10-02-SignExtensionProblem.ll 
llvm-svn: 4017
 2002-10-02 18:53:14 +00:00
Chris Lattner c2996d9a8b Changes to work with Statistics rework 
* 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: 4004
 2002-10-01 22:40:31 +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 3cf3782bc0 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: 4001
 2002-10-01 22:38:37 +00:00
Chris Lattner f242bec91b Build subdirs in parallel 
llvm-svn: 4000
 2002-10-01 22:36:35 +00:00
Chris Lattner 05e86302f4 Fix bug in LICM that caused the previous big win. :( 
llvm-svn: 3980
 2002-09-29 22:26:07 +00:00
Chris Lattner 6443769b34 Hoist the contents of Loops in depth first order in the dominator tree, 
rather than in random order.  This causes LICM to be DRAMATICALLY more
effective. For example, on bzip2.c, it is able to hoist 302 loads and
2380 total instructions, as opposed to 44/338 before.  This  obviously
makes other transformations much more powerful as well!

llvm-svn: 3978
 2002-09-29 21:46:09 +00:00
Chris Lattner 03a9e15a9f Fix major bugs in dominator set & tree information updating 
llvm-svn: 3975
 2002-09-29 21:41:38 +00:00
Vikram S. Adve be55f2dd2c Convert DIRS to PARALLEL_DIRS. They can be built independently. 
llvm-svn: 3972
 2002-09-29 11:52:14 +00:00
Chris Lattner d57f3f5073 - Further cleanups of LICM pass, remove extra work from previous implementation 
- Do not clone instructions then insert clone outside of loop.  Just move them.

llvm-svn: 3951
 2002-09-26 19:40:25 +00:00
Chris Lattner f64f2d3fb3 Improve comments, doxygenize more 
llvm-svn: 3950
 2002-09-26 16:52:07 +00:00
Chris Lattner 718b221ff8 Clean up LICM significantly now that it is guaranteed to have loop preheaders 
llvm-svn: 3947
 2002-09-26 16:38:03 +00:00
Chris Lattner ca056914c6 Change pass name to something sane 
llvm-svn: 3946
 2002-09-26 16:37:37 +00:00
Chris Lattner d771fdfd75 Loop invariant code motion now depends on the LoopPreheader pass. Dead code 
has not yet been removed.

llvm-svn: 3945
 2002-09-26 16:19:31 +00:00
Chris Lattner bedbd6bc16 - Cleanup break-crit-edges pass by making SplitCriticalEdge a member method. 
- break-crit-edges pass does not invalidate loop-preheader pass.

llvm-svn: 3944
 2002-09-26 16:18:51 +00:00
Chris Lattner 61992f66d8 Checkin new loop-preheader insertion pass. 
llvm-svn: 3942
 2002-09-26 16:17:31 +00:00
Chris Lattner 870a4a5bb4 Converted SimpleStructMutation to take TargetData as a required pass. 
llvm-svn: 3932
 2002-09-26 00:17:21 +00:00
Chris Lattner 3cab9f0396 Change LowerAllocations pass to 'require' TargetData instead of it being 
passed in.

llvm-svn: 3929
 2002-09-25 23:47:47 +00:00
Chris Lattner b408154f5f - Fix bug: Mem2Reg/2002-05-01-ShouldNotPromoteThisAlloca.ll 
llvm-svn: 3917
 2002-09-24 21:19:41 +00:00
Chris Lattner 4357e54760 Eliminate extraneous #include 
llvm-svn: 3916
 2002-09-24 21:18:40 +00:00
Chris Lattner d6dcd8ec32 Fix bug: SimplifyCFG/2002-09-24-PHIAssertion.ll 
llvm-svn: 3913
 2002-09-24 16:09:17 +00:00
Chris Lattner c05ad96803 - Do not expose Critical Edge breaking mechanics outside the BCE pass, thus 
removing it from Transforms/Local.h and from Transforms/Utils/*

llvm-svn: 3911
 2002-09-24 15:52:01 +00:00
Chris Lattner 75f80bd0b6 - Do not expose Critical Edge breaking mechanics outside the BCE pass, thus 
removing it from Transforms/Local.h and from Transforms/Utils/*

llvm-svn: 3910
 2002-09-24 15:51:56 +00:00
Chris Lattner b4e7e22be3 Correlated Exprs pass now requires BCE pass instead of doing it manually 
llvm-svn: 3908
 2002-09-24 15:43:56 +00:00
Chris Lattner 4bec665b09 - Expose passinfo from BreakCriticalEdges pass so that it may be "Required" 
by other passes.  Make BCE pass be in anonymous namespace now.

llvm-svn: 3907
 2002-09-24 15:43:12 +00:00
Chris Lattner 5325c5f340 Minor cleanups 
llvm-svn: 3904
 2002-09-24 00:09:26 +00:00
Chris Lattner b03832d5d0 Add new BreakCriticalEdges pass 
llvm-svn: 3903
 2002-09-24 00:08:39 +00:00
Chris Lattner 555518c70f Optimize away cases like: 
%cast109 = cast uint %cast212 to short          ; <short> [#uses=1]
        %cast214 = cast short %cast109 to uint          ; <uint> [#uses=1]
        %cast215 = cast uint %cast214 to short          ; <short> [#uses=1]

llvm-svn: 3897
 2002-09-23 23:39:43 +00:00
Chris Lattner 28d103548d Fix: ConstantMerge/2002-09-23-CPR-Update.ll 
Basically, this bug boiled down to calling replaceUsesOfWith on a constant,
which changed it's shape in an illegal way.  This pass now goes through all
of the trouble neccesary to do the replacement on constants.

llvm-svn: 3895
 2002-09-23 23:00:46 +00:00
Chris Lattner 7ccb217f21 * Fix bug: CorrelatedExprs/2002-09-23-PHIUpdateBug.ll 
* Make sure "Changed" is updated correctly

llvm-svn: 3891
 2002-09-23 20:06:22 +00:00
Chris Lattner 4037a261d8 Insert resolved constants into the global map so they are reused correctly. 
This bug was exposed linking the SPEC benchmark suite.

llvm-svn: 3888
 2002-09-23 18:14:15 +00:00
Chris Lattner facc751260 Don't insert a PHI node to merge "returns" from an inlined function if there 
is only a single return from the function!

llvm-svn: 3878
 2002-09-22 18:41:25 +00:00
Anand Shukla 77dca14403 Added checking threshold 
llvm-svn: 3864
 2002-09-20 16:44:35 +00:00
Anand Shukla ea77a493ff split retracing into a separate file 
llvm-svn: 3809
 2002-09-18 03:55:26 +00:00
Misha Brukman ebcd1d7c16 Removed unnecessary #includes. 
llvm-svn: 3802
 2002-09-18 02:07:57 +00:00
Misha Brukman 892f59fcb2 Fixed typo. 
llvm-svn: 3801
 2002-09-18 00:42:45 +00:00
Chris Lattner 22cbac6511 There is a #define in some header that conflicts with INFINITY, rename it. 
llvm-svn: 3797
 2002-09-17 23:46:33 +00:00
Chris Lattner a8339e3613 Fix bug: test/Regression/Transforms/InstCombine/2002-09-17-GetElementPtrCrash.ll 
Thanks to Casey for finding it!

llvm-svn: 3783
 2002-09-17 21:05:42 +00:00
Chris Lattner afb4fc189c Fix FunctionInlining pass assertion failure: 
ilist:104: failed assertion `Traits::getNext(NodePtr) != 0 && "Dereferencing end()!"'

llvm-svn: 3768
 2002-09-16 22:30:20 +00:00
Chris Lattner ec3936ac0d Fix: test/Regression/LLC/badidx.c problem 
llvm-svn: 3763
 2002-09-16 18:32:33 +00:00
Vikram S. Adve dba59921d7 Extract most of the transformation into an externally accessible 
function -- DecomposeArrayRef(GetElementPtrInst* GEP) -- that can
be invoked on a single instruction at a time.

llvm-svn: 3755
 2002-09-16 16:40:07 +00:00
Anand Shukla f94ad68e56 Incorporated changes in alloca and getElementPointer instruction 
llvm-svn: 3733
 2002-09-16 05:26:51 +00:00
Anand Shukla d9a6af0c27 Incorporated changes in alloca instruction 
llvm-svn: 3732
 2002-09-16 05:24:49 +00:00
Chris Lattner 154cf64436 Fix bug I introduced 
llvm-svn: 3719
 2002-09-14 19:33:16 +00:00
Misha Brukman 2e8086f046 Function.h is unnecessary when Module.h is included. 
llvm-svn: 3716
 2002-09-14 03:04:02 +00:00
Misha Brukman 09d24c7374 Following Chris's advice, I'm pruning some unnecessary .h includes that I'm 
noticing. Since Module includes Function, and eventually, BasicBlock and
GlobalVariable, the last three are unnecessary to be included directly.

llvm-svn: 3713
 2002-09-14 02:06:53 +00:00
Chris Lattner fc91ee91e8 Change the MallocInst & AllocaInst ctors to take the allocated type, not the 
pointer type returned.

llvm-svn: 3711
 2002-09-13 22:28:50 +00:00
Chris Lattner 322bf4f3a9 Change the MallocInst & AllocaInst ctors to take the allocated type, not the 
pointer type returned.

llvm-svn: 3710
 2002-09-13 22:28:45 +00:00
Chris Lattner 674c9ff585 Fix bug I introduced with one of my previous changes. 
Thanks fly out to Nick for noticing it!  :)

llvm-svn: 3691
 2002-09-12 19:00:43 +00:00
Chris Lattner 136dab7d86 - Change getelementptr instruction to use long indexes instead of uint 
indexes for sequential types.

llvm-svn: 3682
 2002-09-11 01:21:33 +00:00
Chris Lattner b9d9e0ff8d - Change getelementptr instruction to use long indexes instead of uint 
indexes for sequential types.

llvm-svn: 3681
 2002-09-11 01:21:29 +00:00
Chris Lattner cbc532603a Fix the last of the silly bugs I just introduced. :( 
llvm-svn: 3674
 2002-09-10 23:46:10 +00:00
Chris Lattner 3d7720ae7d Fix bugs in previous checkins 
llvm-svn: 3673
 2002-09-10 23:31:28 +00:00
Chris Lattner 9674b869e5 Fix bug in previous checkin 
llvm-svn: 3672
 2002-09-10 23:31:12 +00:00
Chris Lattner 55f3d94b40 Add cannonicalization of shl X, 1 -> add X, X 
llvm-svn: 3671
 2002-09-10 23:04:09 +00:00
Chris Lattner e8c927f71a Fix minor problems in previous checkin 
llvm-svn: 3669
 2002-09-10 22:52:51 +00:00
Chris Lattner db3f9bc948 Fix minor problems in previous checkin 
llvm-svn: 3668
 2002-09-10 22:52:49 +00:00
Chris Lattner f80f7b02b7 Clean up code due to auto-insert constructors 
llvm-svn: 3666
 2002-09-10 22:38:49 +00:00
Chris Lattner a239e6879d Clean up code due to auto-insert constructors 
llvm-svn: 3665
 2002-09-10 22:38:47 +00:00
Chris Lattner 97ff99cdf9 Clean up code 
llvm-svn: 3664
 2002-09-10 22:38:06 +00:00
Chris Lattner 61c83bf12f Fix bug: test/Regression/Transforms/LevelRaise/2002-09-10-PointerAdds.ll 
llvm-svn: 3658
 2002-09-10 19:42:53 +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 5c447863d5 Simplify code (somtimes dramatically), by using the new "auto-insert" feature 
of instruction constructors.

llvm-svn: 3655
 2002-09-10 17:03:06 +00:00
Chris Lattner 4184bcc701 * Clean up code a little bit 
* Fix bug: test/Regression/Transforms/IndVarsSimplify/2002-09-09-PointerIndVar.ll

llvm-svn: 3644
 2002-09-10 05:24:05 +00:00
Chris Lattner e103d178c5 Hack unneccesary now that shifts of pointers are no longer legal! 
llvm-svn: 3640
 2002-09-10 03:50:54 +00:00
Chris Lattner ff16f07017 Disallow creation of pointer typed shift instructions 
llvm-svn: 3637
 2002-09-09 20:25:21 +00:00
Chris Lattner 5f00d66cc3 Factor silly code duplication out 
llvm-svn: 3627
 2002-09-08 21:47:54 +00:00
Chris Lattner b8bba6f765 Fix Bug: test/Regression/Transforms/InstCombine/2002-09-08-PointerShiftBug.ll 
llvm-svn: 3626
 2002-09-08 21:39:07 +00:00
Chris Lattner bdb147c373 Minor simplification 
llvm-svn: 3619
 2002-09-08 18:55:04 +00:00