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c109d30239
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631 Commits

Author SHA1 Message Date
Chris Lattner
c109d30239 Fix bug with ADD nodes and malloc promotion 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1144 91177308-0d34-0410-b5e6-96231b3b80d8
 2001-11-05 21:13:30 +00:00
Chris Lattner
277b4e4a9b Don't print spurious linking warnings about methods that are never used. 
Cleanup ExprTypeConvert a bit.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1141 91177308-0d34-0410-b5e6-96231b3b80d8
 2001-11-05 19:43:10 +00:00
Chris Lattner
e4f4d8c3ec Use the expression map correctly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1140 91177308-0d34-0410-b5e6-96231b3b80d8
 2001-11-05 18:30:53 +00:00
Vikram S. Adve
c352d2c530 Modified graph construction to use one pass to find all defs. 
Avoids having to handle some special cases that cause complex interactions
with instr. selection.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1138 91177308-0d34-0410-b5e6-96231b3b80d8
 2001-11-05 04:04:23 +00:00
Vikram S. Adve
df1c3b8398 Make reg. numbers signed ints. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1137 91177308-0d34-0410-b5e6-96231b3b80d8
 2001-11-05 03:56:02 +00:00
Chris Lattner
901216d527 New file for expression tree conversion 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1128 91177308-0d34-0410-b5e6-96231b3b80d8
 2001-11-04 23:24:20 +00:00
Chris Lattner
59cd9f1e9f Refactor code to share stuff 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1127 91177308-0d34-0410-b5e6-96231b3b80d8
 2001-11-04 23:24:06 +00:00
Chris Lattner
bacec7bc24 * Relax restriction that prevented malloc promotion in certain cases 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1125 91177308-0d34-0410-b5e6-96231b3b80d8
 2001-11-04 22:11:10 +00:00
Vikram S. Adve
510eec7c89 Generate code for Rem instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1124 91177308-0d34-0410-b5e6-96231b3b80d8
 2001-11-04 21:59:14 +00:00
Chris Lattner
5cb17410f2 Fix obscure nasty bug with bytecode writing that could cause the last byte to be dropped. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1123 91177308-0d34-0410-b5e6-96231b3b80d8
 2001-11-04 21:32:41 +00:00
Chris Lattner
b980e18066 * Disable debug output 
* fix minor bug with taking datasize of unsized array type
* Insert code to support speculative changes later


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1122 91177308-0d34-0410-b5e6-96231b3b80d8
 2001-11-04 21:32:11 +00:00
Chris Lattner
f3b976e65f Convert backward conversion of expression trees into a new more powerful bidirectional approach. Add transforms for more instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1121 91177308-0d34-0410-b5e6-96231b3b80d8
 2001-11-04 20:21:12 +00:00
Vikram S. Adve
b7f06f46a1 Fixed instruction information for RDCCR and WRCCR. 
Fixed selection to create a TmpInstruction for each integer CC register
(since it is an implicit side-effect, unlike FP CC registers which are
explicit operands).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1120 91177308-0d34-0410-b5e6-96231b3b80d8
 2001-11-04 19:34:49 +00:00
Chris Lattner
8e7f409169 Minor method rename 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1119 91177308-0d34-0410-b5e6-96231b3b80d8
 2001-11-04 08:08:34 +00:00
Chris Lattner
b96939519b Add transformations for Load and GetElementPtr. Fix broken transform with shr. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1118 91177308-0d34-0410-b5e6-96231b3b80d8
 2001-11-04 07:42:17 +00:00
Chris Lattner
ab9f21f4c4 Fix cast instructions that end up in bad places in GCC output 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1117 91177308-0d34-0410-b5e6-96231b3b80d8
 2001-11-04 07:40:51 +00:00
Ruchira Sasanka
a9e45c8d66 Added an assertion since it seems like AdjList returns an errornous size in method 
IGNode::pushOnStack().


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1116 91177308-0d34-0410-b5e6-96231b3b80d8
 2001-11-03 22:01:09 +00:00
Chris Lattner
081431a639 Avoid making a broken transformation! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1115 91177308-0d34-0410-b5e6-96231b3b80d8
 2001-11-03 21:30:22 +00:00
Chris Lattner
5b497ee7c2 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 ]
//


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1114 91177308-0d34-0410-b5e6-96231b3b80d8
 2001-11-03 21:08:59 +00:00
Ruchira Sasanka
80b1a1a26a Added support for correct spilling of %ccr 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1112 91177308-0d34-0410-b5e6-96231b3b80d8
 2001-11-03 20:41:22 +00:00
Ruchira Sasanka
3839e6e309 Added code to support correct saving of %ccr across calls 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1111 91177308-0d34-0410-b5e6-96231b3b80d8
 2001-11-03 19:59:59 +00:00
Chris Lattner
b20807f23e * 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;
}


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1110 91177308-0d34-0410-b5e6-96231b3b80d8
 2001-11-03 19:51:56 +00:00
Ruchira Sasanka
51bc0e7994 Arranged stack frame - needs furhter organization 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1108 91177308-0d34-0410-b5e6-96231b3b80d8
 2001-11-03 17:14:44 +00:00
Ruchira Sasanka
ef1b0cb9a5 Arranged stack frame - needs furhter organization 
Moved InsertCallerSaveInstr to the SparcRegInfo.cpp


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1106 91177308-0d34-0410-b5e6-96231b3b80d8
 2001-11-03 17:13:27 +00:00
Ruchira Sasanka
fca59d7dc9 Commented out code so that copies are inserted for all phi args 
CahedCopyMap was disabled to insert phi elimination code for all phi args


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1105 91177308-0d34-0410-b5e6-96231b3b80d8
 2001-11-03 17:09:59 +00:00
Chris Lattner
0f279b245d Be lenient on types so that programs that are not very typesafe will work 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1104 91177308-0d34-0410-b5e6-96231b3b80d8
 2001-11-03 10:15:32 +00:00
Chris Lattner
055c963f58 Changes to compile the TSP benchmark successfully. Favor warning instead of assertion failures. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1103 91177308-0d34-0410-b5e6-96231b3b80d8
 2001-11-03 10:04:22 +00:00
Chris Lattner
b6b26921e3 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


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1102 91177308-0d34-0410-b5e6-96231b3b80d8
 2001-11-03 09:19:00 +00:00
Chris Lattner
2c236f3e20 Don't forget to link type names together too. Fix for Olden/mst benchmark 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1094 91177308-0d34-0410-b5e6-96231b3b80d8
 2001-11-03 05:18:24 +00:00
Chris Lattner
ebef5e5ba2 Remove debugging info 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1093 91177308-0d34-0410-b5e6-96231b3b80d8
 2001-11-03 03:31:39 +00:00
Chris Lattner
e244a25014 Fix major bugs in type resolution 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1092 91177308-0d34-0410-b5e6-96231b3b80d8
 2001-11-03 03:27:53 +00:00
Chris Lattner
2d3e8bba62 Add extra code for debugging linker problems 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1091 91177308-0d34-0410-b5e6-96231b3b80d8
 2001-11-03 03:27:29 +00:00
Chris Lattner
3b1e3f45c0 Dramatically simplify recursive type processing. Fixed a few bugs, a few still remain :( 
Why does this stuff have to come up NOW?


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1089 91177308-0d34-0410-b5e6-96231b3b80d8
 2001-11-02 07:51:31 +00:00
Chris Lattner
5084d032e5 Improve some debugging code 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1088 91177308-0d34-0410-b5e6-96231b3b80d8
 2001-11-02 07:46:26 +00:00
Chris Lattner
1e2c614864 Support floating point numbers in expodential form so that small numbers don't get truncated, which broke the health benchmark 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1087 91177308-0d34-0410-b5e6-96231b3b80d8
 2001-11-01 22:06:08 +00:00
Chris Lattner
e99c66b74f * 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.  :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1085 91177308-0d34-0410-b5e6-96231b3b80d8
 2001-11-01 17:05:27 +00:00
Chris Lattner
68b07b7c5d Add DCE as integral part of the level raising to avoid processing instructions that are dead 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1084 91177308-0d34-0410-b5e6-96231b3b80d8
 2001-11-01 07:00:51 +00:00
Chris Lattner
a1f6e648be Expose the low level DCE mechanism to external users 
Refactor code to support it


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1083 91177308-0d34-0410-b5e6-96231b3b80d8
 2001-11-01 07:00:27 +00:00
Chris Lattner
35d64564c8 Implement new simpler constructors for if you don't have a index list 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1081 91177308-0d34-0410-b5e6-96231b3b80d8
 2001-11-01 05:58:42 +00:00
Chris Lattner
dedee7bf15 * 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


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1080 91177308-0d34-0410-b5e6-96231b3b80d8
 2001-11-01 05:57:59 +00:00
Chris Lattner
edefaa1196 Simplify DCE code a lot 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1079 91177308-0d34-0410-b5e6-96231b3b80d8
 2001-11-01 05:55:29 +00:00
Chris Lattner
76ac1a45b4 Implement constant propogation of null pointer values. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1078 91177308-0d34-0410-b5e6-96231b3b80d8
 2001-11-01 05:55:13 +00:00
Chris Lattner
8d38e54c2f * Convert getelementptr/store pairs into a single store 
* Convert getelementptr/load pairs into a single load


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1075 91177308-0d34-0410-b5e6-96231b3b80d8
 2001-11-01 03:12:34 +00:00
Chris Lattner
d32a96121b Initial checkin of level raising code, after move and cleanup and expands from the opt directory 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1074 91177308-0d34-0410-b5e6-96231b3b80d8
 2001-11-01 02:42:08 +00:00
Chris Lattner
591bda986e Propogate name to the malloc itself instead of to the cast 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1071 91177308-0d34-0410-b5e6-96231b3b80d8
 2001-11-01 02:40:36 +00:00
Chris Lattner
7ef6559718 Use the correct prototype for malloc and free 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1066 91177308-0d34-0410-b5e6-96231b3b80d8
 2001-10-31 06:36:23 +00:00
Chris Lattner
bfe11108ad Implement code to convert %malloc and %free FUNCTION CALLS into the instruction equivalent 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1065 91177308-0d34-0410-b5e6-96231b3b80d8
 2001-10-31 06:35:59 +00:00
Chris Lattner
37aabf28b3 Implemented constant propogation of cast instructions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1064 91177308-0d34-0410-b5e6-96231b3b80d8
 2001-10-31 05:07:57 +00:00
Chris Lattner
e51e03b3c6 Initial version of GCC cleanup pass: just removes extraneous global symbol table entries for types 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1062 91177308-0d34-0410-b5e6-96231b3b80d8
 2001-10-31 04:33:19 +00:00
Chris Lattner
4f68528de4 Fix bug when inlining a method that refers to a global variable 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1056 91177308-0d34-0410-b5e6-96231b3b80d8
 2001-10-31 02:27:26 +00:00