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23852 Commits

Author SHA1 Message Date
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