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9211 Commits

Author SHA1 Message Date
Chris Lattner 4031cdde57 Fix many bugs. Implement PHI transforms & other cycles 
llvm-svn: 1151
 2001-11-06 08:34:17 +00:00
Chris Lattner 710c3861b5 Fix bug with ADD nodes and malloc promotion 
llvm-svn: 1144
 2001-11-05 21:13:30 +00:00
Chris Lattner 7e89a616e6 Don't print spurious linking warnings about methods that are never used. 
Cleanup ExprTypeConvert a bit.

llvm-svn: 1141
 2001-11-05 19:43:10 +00:00
Chris Lattner 0ecba60d26 Use the expression map correctly. 
llvm-svn: 1140
 2001-11-05 18:30:53 +00:00
Chris Lattner db750679a3 New file for expression tree conversion 
llvm-svn: 1128
 2001-11-04 23:24:20 +00:00
Chris Lattner 3084cb65ff Refactor code to share stuff 
llvm-svn: 1127
 2001-11-04 23:24:06 +00:00
Chris Lattner cb3da314d9 * Relax restriction that prevented malloc promotion in certain cases 
llvm-svn: 1125
 2001-11-04 22:11:10 +00:00
Chris Lattner 36c5a79153 * Disable debug output 
* fix minor bug with taking datasize of unsized array type
* Insert code to support speculative changes later

llvm-svn: 1122
 2001-11-04 21:32:11 +00:00
Chris Lattner 40a2d9076b Convert backward conversion of expression trees into a new more powerful bidirectional approach. Add transforms for more instructions. 
llvm-svn: 1121
 2001-11-04 20:21:12 +00:00
Chris Lattner 33d9cb9903 Minor method rename 
llvm-svn: 1119
 2001-11-04 08:08:34 +00:00
Chris Lattner f00563d39d Add transformations for Load and GetElementPtr. Fix broken transform with shr. 
llvm-svn: 1118
 2001-11-04 07:42:17 +00:00
Chris Lattner eb7b620d58 Fix cast instructions that end up in bad places in GCC output 
llvm-svn: 1117
 2001-11-04 07:40:51 +00:00
Chris Lattner 033324fc0c Avoid making a broken transformation! 
llvm-svn: 1115
 2001-11-03 21:30:22 +00:00
Chris Lattner ec83fc091e Add new cleanup pass: 
//  1. PHI nodes with multiple entries for the same predecessor.  GCC sometimes
//     generates code that looks like this:
//
//  bb7:  br bool %cond1004, label %bb8, label %bb8
//  bb8: %reg119 = phi uint [ 0, %bb7 ], [ 1, %bb7 ]
//
//     which is completely illegal LLVM code.  To compensate for this, we insert
//     an extra basic block, and convert the code to look like this:
//
//  bb7: br bool %cond1004, label %bbX, label %bb8
//  bbX: br label bb8
//  bb8: %reg119 = phi uint [ 0, %bbX ], [ 1, %bb7 ]
//

llvm-svn: 1114
 2001-11-03 21:08:59 +00:00
Chris Lattner 784c623efb * Export method to merge identically named methods 
* Add code to fix PHI nodes that are missing arguments.  These PHI nodes can
  be generated by GCC if there is an uninitialized variable flowing into a merge
  point.  For example:

int foo(int y) {
  int X;
  if (y) X = 1;
  return X;
}

llvm-svn: 1110
 2001-11-03 19:51:56 +00:00
Ruchira Sasanka 629a15247a Commented out code so that copies are inserted for all phi args 
CahedCopyMap was disabled to insert phi elimination code for all phi args

llvm-svn: 1105
 2001-11-03 17:09:59 +00:00
Chris Lattner 629d7a7849 Changes to compile the TSP benchmark successfully. Favor warning instead of assertion failures. 
llvm-svn: 1103
 2001-11-03 10:04:22 +00:00
Chris Lattner 1f3947c1d1 Add code to link method together with the same name if one is vararg and the other isn't. 
This resolves definitions like this:
   %list * "foo"(...)
   %list * "foo"(int)

together which can often occur because C programmers don't put prototypes in like they should.  GRR

llvm-svn: 1102
 2001-11-03 09:19:00 +00:00
Chris Lattner 3855f2c806 Don't forget to link type names together too. Fix for Olden/mst benchmark 
llvm-svn: 1094
 2001-11-03 05:18:24 +00:00
Chris Lattner 1e60d6b762 Add extra code for debugging linker problems 
llvm-svn: 1091
 2001-11-03 03:27:29 +00:00
Chris Lattner 9bc6b190cc * Add comments for peepholes 
* Implement new peephole:
     // Peephole optimize the following instructions:
     // %t1 = cast {<...>} * %StructPtr to <ty> *
     //
     // Into: %t2 = getelementptr {<...>} * %StructPtr, <0, 0, 0, ...>
     //       %t1 = cast <eltype> * %t1 to <ty> *

  This peephole eliminated 9 evil casts in the health benchmark, and
  completely turned the addList method around.  :)

llvm-svn: 1085
 2001-11-01 17:05:27 +00:00
Chris Lattner 71c842cddf Add DCE as integral part of the level raising to avoid processing instructions that are dead 
llvm-svn: 1084
 2001-11-01 07:00:51 +00:00
Chris Lattner 7567f6c15f Expose the low level DCE mechanism to external users 
Refactor code to support it

llvm-svn: 1083
 2001-11-01 07:00:27 +00:00
Chris Lattner 9a13ececd8 * Implement expression type conversion for constant values 
* Fix a problem setting a name on a constant value that died because no symbol table was passed in
* Add some comments describing the passes
* Implement a new peephole:
     // Peephole optimize the following instructions:
     // %t = cast <T1>* %P to <T2> * ;; If T1 is losslessly convertable to T2
     // store <T2> %V, <T2>* %t
     //
     // Into:
     // %t = cast <T2> %V to <T1>
     // store <T1> %t2, <T1>* %P

llvm-svn: 1080
 2001-11-01 05:57:59 +00:00
Chris Lattner 04648a4cc6 Simplify DCE code a lot 
llvm-svn: 1079
 2001-11-01 05:55:29 +00:00
Chris Lattner 1267be2319 * Convert getelementptr/store pairs into a single store 
* Convert getelementptr/load pairs into a single load

llvm-svn: 1075
 2001-11-01 03:12:34 +00:00
Chris Lattner 025f9fcf80 Initial checkin of level raising code, after move and cleanup and expands from the opt directory 
llvm-svn: 1074
 2001-11-01 02:42:08 +00:00
Chris Lattner 246f157af4 Propogate name to the malloc itself instead of to the cast 
llvm-svn: 1071
 2001-11-01 02:40:36 +00:00
Chris Lattner 7e6a0d8c17 Use the correct prototype for malloc and free 
llvm-svn: 1066
 2001-10-31 06:36:23 +00:00
Chris Lattner 20726ed31b Implement code to convert %malloc and %free FUNCTION CALLS into the instruction equivalent 
llvm-svn: 1065
 2001-10-31 06:35:59 +00:00
Chris Lattner 9db8b765cd Implemented constant propogation of cast instructions 
llvm-svn: 1064
 2001-10-31 05:07:57 +00:00
Chris Lattner 34b9518c88 Initial version of GCC cleanup pass: just removes extraneous global symbol table entries for types 
llvm-svn: 1062
 2001-10-31 04:33:19 +00:00
Chris Lattner 2a2b531294 Fix bug when inlining a method that refers to a global variable 
llvm-svn: 1056
 2001-10-31 02:27:26 +00:00
Chris Lattner cba9036e34 Fix broken assertion. Didn't allow for pointer case 
llvm-svn: 1034
 2001-10-29 17:27:38 +00:00
Chris Lattner 3e95c716aa Pull method symbols over when linking. Otherwise the result of the link will appear stripped 
llvm-svn: 1033
 2001-10-29 16:55:41 +00:00
Vikram S. Adve 66aea7a58c Make newlines be newlines! This should now work in both lli and native code. 
llvm-svn: 1016
 2001-10-28 22:44:02 +00:00
Chris Lattner fc361b1d55 Remove non linking related stuff 
llvm-svn: 1015
 2001-10-28 22:43:06 +00:00
Vikram S. Adve 6e26c8b0fc Added name-mangling routines for future use. 
llvm-svn: 1003
 2001-10-28 21:38:02 +00:00
Vikram S. Adve 96f6ac9ffc Use separate functions for printing values of each type. 
Put trace code before condition-generating instruction in basic blocks
that end in a conditional branch.

llvm-svn: 1002
 2001-10-28 21:37:25 +00:00
Chris Lattner b046867a97 Fix problem linking in a method prototype when a method body exists 
llvm-svn: 965
 2001-10-23 20:43:42 +00:00
Chris Lattner e2c61267ad Refix bugs, stop using deprecated strstream header 
llvm-svn: 898
 2001-10-18 20:06:03 +00:00
Chris Lattner 4816d63844 Initial checkin 
llvm-svn: 897
 2001-10-18 20:05:37 +00:00
Vikram S. Adve a0db1c9a0e Only print values live at BB or method exit, and insert loads at each 
BB exit to read and print values stored in that BB.   Note that only
these stored values are live at method exit!.  Also, print messages at
method entry and exit.

llvm-svn: 892
 2001-10-18 18:16:11 +00:00
Vikram S. Adve 7ac553aa12 Handle multiple exit blocks correctly. 
Restore string variable cache.
Resurrect code to use formatted printing instead of PrintVal
but leave it turned off for now.

llvm-svn: 888
 2001-10-18 13:49:22 +00:00
Chris Lattner 5309e10be1 Convert to be compatible with lli. 
Need to eliminate duplicate \n entries

llvm-svn: 883
 2001-10-18 06:03:05 +00:00
Chris Lattner a0a8b5bc26 Massive hacks to try to fix subtle logic bugs. I think it's all working now, 
at least what used to.  I should disable method exit code completely because
it's broken (doesn't insert just post dominating values)

llvm-svn: 881
 2001-10-18 05:28:08 +00:00
Chris Lattner 6fea0324d7 Convert to new simpler pass itf 
llvm-svn: 880
 2001-10-18 05:27:33 +00:00
Chris Lattner 5398a6eb6c Convert optimizations to the pass infrastructure 
llvm-svn: 873
 2001-10-18 01:32:34 +00:00
Chris Lattner 1bb5f8e4ee Add new Pass infrastructure and some examples 
llvm-svn: 836
 2001-10-15 17:31:51 +00:00
Chris Lattner 162ed4d6cc Rename ConstPoolPointerReference to ConstPoolPointerRef - My fingers get tired typing that much 
llvm-svn: 822
 2001-10-15 13:21:42 +00:00
Chris Lattner 1afbdc0ea5 * getExitNode() doesn't exist in method anymore 
* Make local functions static

llvm-svn: 820
 2001-10-15 13:07:21 +00:00
Vikram S. Adve 9a35320053 Added Instrumentation subdirectory. 
llvm-svn: 819
 2001-10-15 12:01:05 +00:00
Chris Lattner c306f18c3e Implement linking of global variable constant references 
llvm-svn: 817
 2001-10-15 03:12:52 +00:00
Chris Lattner a972919f92 Minor cleanup 
llvm-svn: 812
 2001-10-14 23:29:30 +00:00
Chris Lattner 1090dc96ff Implement linker. It's 95% working now. 
llvm-svn: 810
 2001-10-14 23:29:15 +00:00
Vikram S. Adve a200a6c583 Insert code to trace values at basic block and method exits. 
Current version does not check for liveness.

llvm-svn: 800
 2001-10-14 23:18:45 +00:00
Chris Lattner 1362299644 Check in makefile 
llvm-svn: 788
 2001-10-13 16:57:03 +00:00
Chris Lattner b7b537f192 Start of a linker 
llvm-svn: 775
 2001-10-13 07:03:50 +00:00
Chris Lattner f0b68888af Support the invoke instruction 
llvm-svn: 765
 2001-10-13 06:52:41 +00:00
Chris Lattner cfc2f446a6 Support indirect calls 
llvm-svn: 764
 2001-10-13 06:52:31 +00:00
Chris Lattner da55810666 Commit more code over to new cast style 
llvm-svn: 697
 2001-10-02 03:41:24 +00:00
Chris Lattner 3856934386 Convert more code to use new style casts 
Eliminate old style casts from value.h

llvm-svn: 696
 2001-10-01 20:11:19 +00:00
Chris Lattner 8f19112923 Add more support for new style casts 
Convert more code to use them

llvm-svn: 695
 2001-10-01 18:26:53 +00:00
Chris Lattner 4b717c0edc Add support for new style casts 
llvm-svn: 694
 2001-10-01 16:18:37 +00:00
Chris Lattner ba1c1f2fb6 Pull predecessor and successor iterators out of the CFG*.h files, and plop them into 
the BasicBlock class where they should be.  pred_begin/pred_end become methods on BasicBlock,
and the cfg namespace isn't used anymore.

llvm-svn: 691
 2001-10-01 13:19:53 +00:00
Chris Lattner bb09a10929 Pull iterators out of CFG.h and CFGdecls and put them in Support directory 
llvm-svn: 664
 2001-09-28 22:56:31 +00:00
Chris Lattner b271be3185 ADCE is broken but at least we know why 
llvm-svn: 656
 2001-09-28 00:06:42 +00:00
Chris Lattner acfd27d502 Make ADCE more robust, it still has problems, but it's getting closer 
llvm-svn: 521
 2001-09-09 22:26:47 +00:00
Chris Lattner d707ec62b6 Types and constants are wierd things in symbol tables now 
llvm-svn: 457
 2001-09-07 16:43:50 +00:00
Chris Lattner dae05dc937 * Eliminate reference to ConstantPool class 
* Constants are global objects that are not allocated or freed

llvm-svn: 456
 2001-09-07 16:43:22 +00:00
Chris Lattner e57fc205f4 Constant pool is dead 
llvm-svn: 455
 2001-09-07 16:42:51 +00:00
Chris Lattner 6d7bce9f3c Constants are now global unique objects 
llvm-svn: 454
 2001-09-07 16:42:26 +00:00
Chris Lattner 07e158de3c * Eliminate constant pool dependancies: 
* Eliminate DoRemoveUnusedConstants

llvm-svn: 453
 2001-09-07 16:42:08 +00:00
Chris Lattner 030772df99 * Supoprt global constants 
* Remove support for local constant pools
* Eliminate constant pool merging method, which is no longer neccesary
* Disable invalid optimization (todo: fix it)

llvm-svn: 452
 2001-09-07 16:41:30 +00:00
Chris Lattner b62b602fe2 Enable the elimination of method prototypes that are not referenced 
llvm-svn: 325
 2001-07-28 17:51:49 +00:00
Chris Lattner e2472bbf6c Moved inline/llvm/Tools/* to include/llvm/Support/* 
llvm-svn: 279
 2001-07-23 17:46:59 +00:00
Chris Lattner 3e37ec7c0a Support external methods 
llvm-svn: 200
 2001-07-15 21:43:45 +00:00
Chris Lattner 5451c9e977 Add knowledge about the struct form of the GetElementPtr instruction 
llvm-svn: 183
 2001-07-14 06:11:51 +00:00
Chris Lattner 5b1200bf8e Remove dependency on the structure of ValueHolder. 
llvm-svn: 182
 2001-07-14 06:11:26 +00:00
Chris Lattner d6c5a769ea Don't clean out the type plane of the constant pool... this is a hack. FIXME 
llvm-svn: 172
 2001-07-09 19:38:52 +00:00
Chris Lattner 31feae8550 Implement checking for new instructions 
llvm-svn: 163
 2001-07-08 21:18:49 +00:00
Chris Lattner fb8ed0cf3a Use the CDG to mark branches alive on demand. 
llvm-svn: 159
 2001-07-08 18:38:36 +00:00
Chris Lattner a682182f64 Neg instruction removed. Cast instruction implemented. 
llvm-svn: 156
 2001-07-08 04:57:15 +00:00
Chris Lattner b1ca9cbceb Broad superficial changes: 
* Renamed getOpcode to getOpcodeName
* Changed getOpcodeName to return a const char * instead of string
* Added a getOpcode method to replace getInstType
* Changed code to use getOpcode instead of getInstType

llvm-svn: 152
 2001-07-07 19:24:15 +00:00
Chris Lattner a073acb22d Changed the fundemental architecture of Operands for Instructions. Now 
Operands are maintained as a vector<Use> in the User class, and operator
iterators are provided as before.  Getting an operand no longer requires
a virtual function call.

WARNING: getOperand(x) where x >= getNumOperands() will now assert instead
of returning null!

llvm-svn: 149
 2001-07-07 08:36:50 +00:00
Chris Lattner 29aae157f7 Add method to unify all exit nodes of a method 
llvm-svn: 143
 2001-07-06 16:58:36 +00:00
Chris Lattner 8024bde7c7 Update to include right file 
llvm-svn: 138
 2001-07-06 16:32:07 +00:00
Chris Lattner b28986ffc7 Initial checkin. Should print dead instructions, except it doesn't do 
control dependencies.  :(

llvm-svn: 119
 2001-06-30 06:39:11 +00:00
Chris Lattner 1960b3c6d2 Rename DoSparseConditionalConstantProp -> DoSCCP 
llvm-svn: 117
 2001-06-30 06:37:43 +00:00
Chris Lattner d42d492734 Optimizations got their own header files 
Optimizations now live in the 'opt' namespace
include/llvm/Opt was renamed include/llvm/Optimizations

llvm-svn: 113
 2001-06-30 04:36:40 +00:00
Chris Lattner 7ce8b17e60 Export ConstantFoldTerminator, allow it to fold conditional branches to 
the same label.

llvm-svn: 107
 2001-06-29 23:56:58 +00:00
Chris Lattner 10b250eb4d Added documentation. Constant fold terminators. 
llvm-svn: 106
 2001-06-29 23:56:23 +00:00
Chris Lattner 84f07396d3 * Factored RemovePredecessorFromBlock into BasicBlock::removePredecessor 
* Avoid messing around with this case:
  br label %A
%A:  br label %A
* Enable optimizations that are correct now.

llvm-svn: 102
 2001-06-29 05:24:28 +00:00
Chris Lattner e4abb60948 We need to make sure to remove PHI nodes in the successor that cannot be 
executed when removing branch dest.

llvm-svn: 101
 2001-06-29 05:23:10 +00:00
Chris Lattner 4cee8d8ffb Miscellaneous cleanups: 
* Convert post to pre-increment for for loops
  * Use generic programming more
  * Use new Value::cast* instructions
  * Use new Module, Method, & BasicBlock forwarding methods
  * Use new facilities in STLExtras.h
  * Use new Instruction::isPHINode() method

llvm-svn: 96
 2001-06-27 23:41:11 +00:00
Chris Lattner 347389dae8 Add a new Sparse Conditional Constant Propogation pass 
llvm-svn: 95
 2001-06-27 23:38:11 +00:00
Chris Lattner 1a67fb8860 Misc cleanup 
llvm-svn: 91
 2001-06-27 23:36:09 +00:00
Chris Lattner f222bf33c3 * Expose DoConstantPoolMerging 
* Cleanups (post->pre increment, new cleaner API, etc)
* Moved stuff into ConstantHandling.h

llvm-svn: 90
 2001-06-27 23:35:26 +00:00
Chris Lattner dbdaaef7d5 Implement induction variable injection! 
llvm-svn: 75
 2001-06-25 07:32:19 +00:00
Chris Lattner c3a6f546de A silly stupid test of the loop depth calculator was added. REMOVE in the 
future.

llvm-svn: 72
 2001-06-25 03:55:37 +00:00
Chris Lattner f64a8936e5 #include a different header due to Intervals.h splitting up 
llvm-svn: 63
 2001-06-24 04:05:45 +00:00
Chris Lattner 4c4f178723 Implement a lot more functionality. Now loop invariant and linear 
induction variables are correctly identified.

llvm-svn: 57
 2001-06-22 02:24:38 +00:00
Chris Lattner b20a15d334 Moved printing code to the Assembly/Writer library. 
Code now detects looping intervals

llvm-svn: 52
 2001-06-21 05:27:22 +00:00
Chris Lattner 778de94723 Get rid of a silly printout that isn't needed right now 
llvm-svn: 45
 2001-06-20 23:09:39 +00:00
Chris Lattner f86e38e452 Add capability to print a derived interval graph 
llvm-svn: 42
 2001-06-20 22:44:38 +00:00
Chris Lattner d286a997d3 Add a test case for interval code 
llvm-svn: 36
 2001-06-20 19:27:11 +00:00
Chris Lattner 5ba5f88c35 Updates to work with new cfg namespace 
llvm-svn: 29
 2001-06-13 19:55:22 +00:00
Chris Lattner 874ddadf72 Updates to support 
* Changes in PHI node structure

llvm-svn: 25
 2001-06-11 15:04:40 +00:00
Chris Lattner 7e0d6e05ac Updated to work with new CFG.h file. 
llvm-svn: 15
 2001-06-07 21:18:45 +00:00
Chris Lattner d821c2af37 Significant rework. DCE is still not done (see #ifdef'd out parts) 
but at least the stuff that is checked in, now works.

llvm-svn: 10
 2001-06-07 16:59:26 +00:00
Chris Lattner 2f7c963559 Initial revision 
llvm-svn: 2
 2001-06-06 20:29:01 +00:00