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4522 Commits

Author SHA1 Message Date
Chris Lattner
1643e8ec7b Fix minor bug 
llvm-svn: 1273
 2001-11-12 20:13:04 +00:00
Ruchira Sasanka
cc3da8c107 Changed insert instructions only for CONSTANTS - back to original 
llvm-svn: 1271
 2001-11-12 19:32:04 +00:00
Chris Lattner
49ec72411e Initail checking of structure swapper 
llvm-svn: 1248
 2001-11-10 07:28:25 +00:00
Chris Lattner
5dada09565 Initial checkin of structure mutator 
llvm-svn: 1246
 2001-11-10 07:26:31 +00:00
Chris Lattner
0043cc1109 Remove false optimization that basically broke everything 
llvm-svn: 1219
 2001-11-09 01:08:10 +00:00
Chris Lattner
54e9f453c9 * Add better caching of data to avoid silly recusions 
* Only check to see if uses of instructions can be converted for expressions... so we don't look at all of the uses of a constant.  This was making the code unnecessarily conservative

llvm-svn: 1218
 2001-11-08 22:06:31 +00:00
Chris Lattner
583e95e0b2 Improve raising significantly 
llvm-svn: 1214
 2001-11-08 20:19:56 +00:00
Vikram S. Adve
3b193679f0 Bug fix: cannot modify Phi operands while iterating over them! 
llvm-svn: 1203
 2001-11-08 05:25:33 +00:00
Chris Lattner
3b7199e36c Add #includes to enable buiding in Release mode 
llvm-svn: 1174
 2001-11-07 13:49:45 +00:00
Chris Lattner
6c4681ca28 Fix minor bug for shifts 
llvm-svn: 1160
 2001-11-06 21:51:48 +00:00
Chris Lattner
0136101e37 Fix bugs 
llvm-svn: 1152
 2001-11-06 08:34:29 +00:00
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