Commit Graph

104045 Commits

Author SHA1 Message Date
Chris Lattner
2b05880476 Export ConstantFoldTerminator, allow it to fold conditional branches to
the same label.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107 91177308-0d34-0410-b5e6-96231b3b80d8
2001-06-29 23:56:58 +00:00
Chris Lattner
cb056de508 Added documentation. Constant fold terminators.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106 91177308-0d34-0410-b5e6-96231b3b80d8
2001-06-29 23:56:23 +00:00
Chris Lattner
7b8ec2d752 Add a check to avoid allowing V->replaceAllUsesWith(V)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104 91177308-0d34-0410-b5e6-96231b3b80d8
2001-06-29 05:25:51 +00:00
Chris Lattner
b47af25099 Add implementation of BasicBlock::removePredecessor code that was factored
out of DCE.cpp


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103 91177308-0d34-0410-b5e6-96231b3b80d8
2001-06-29 05:25:23 +00:00
Chris Lattner
25d17a5001 * Factored RemovePredecessorFromBlock into BasicBlock::removePredecessor
* Avoid messing around with this case:
  br label %A
%A:  br label %A
* Enable optimizations that are correct now.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102 91177308-0d34-0410-b5e6-96231b3b80d8
2001-06-29 05:24:28 +00:00
Chris Lattner
bca26a4c6b We need to make sure to remove PHI nodes in the successor that cannot be
executed when removing branch dest.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101 91177308-0d34-0410-b5e6-96231b3b80d8
2001-06-29 05:23:10 +00:00
Chris Lattner
1be1d79a1d Added a note about a new verification the verifier should do
Removed a redundant check


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100 91177308-0d34-0410-b5e6-96231b3b80d8
2001-06-29 05:22:12 +00:00
Chris Lattner
7fc9fe3439 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


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96 91177308-0d34-0410-b5e6-96231b3b80d8
2001-06-27 23:41:11 +00:00
Chris Lattner
138a124f09 Add a new Sparse Conditional Constant Propogation pass
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95 91177308-0d34-0410-b5e6-96231b3b80d8
2001-06-27 23:38:11 +00:00
Chris Lattner
8a36b31e1a Change to use the new GenericBinaryInst class. Support lots more operators.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92 91177308-0d34-0410-b5e6-96231b3b80d8
2001-06-27 23:36:49 +00:00
Chris Lattner
3b34c59dcb Misc cleanup
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@91 91177308-0d34-0410-b5e6-96231b3b80d8
2001-06-27 23:36:09 +00:00
Chris Lattner
531450d8a6 * Expose DoConstantPoolMerging
* Cleanups (post->pre increment, new cleaner API, etc)
* Moved stuff into ConstantHandling.h


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90 91177308-0d34-0410-b5e6-96231b3b80d8
2001-06-27 23:35:26 +00:00
Chris Lattner
079df31921 Convert ugly postincrement to efficient preincrement
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@89 91177308-0d34-0410-b5e6-96231b3b80d8
2001-06-27 23:34:01 +00:00
Chris Lattner
6bb09d96a0 Add instructions to fold unary and binary instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@87 91177308-0d34-0410-b5e6-96231b3b80d8
2001-06-27 23:31:34 +00:00
Chris Lattner
17262f7784 Convert postincrements to more efficient preincrements
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81 91177308-0d34-0410-b5e6-96231b3b80d8
2001-06-27 23:28:02 +00:00
Chris Lattner
20554f11d0 Moved UnaryOperator::create to InstrTypes.cpp until there is an iUnaryOps.cpp
Moved BinaryOperator::create to iBinaryOperators.cpp
Add getUniqueName to SymbolTable


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76 91177308-0d34-0410-b5e6-96231b3b80d8
2001-06-25 07:33:13 +00:00
Chris Lattner
d473a0acc4 Implement induction variable injection!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75 91177308-0d34-0410-b5e6-96231b3b80d8
2001-06-25 07:32:19 +00:00
Chris Lattner
bebd60dc9d Renamed get.*Operator to create seeing that it would have to be qualified
with the classname anyways.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74 91177308-0d34-0410-b5e6-96231b3b80d8
2001-06-25 07:31:31 +00:00
Chris Lattner
3bcd6394ec * Rename get.*Operator to create seeing that it would have to be qualified
with the classname anyways.
* Add an isPHINode() method to Instruction
* Add getUniqueName() to SymbolTable class
* Add an insert method to ValueHolder


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73 91177308-0d34-0410-b5e6-96231b3b80d8
2001-06-25 07:31:05 +00:00
Chris Lattner
53b1c0161d A silly stupid test of the loop depth calculator was added. REMOVE in the
future.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72 91177308-0d34-0410-b5e6-96231b3b80d8
2001-06-25 03:55:37 +00:00
Chris Lattner
23e36625a2 IntervalPartition: recode to use IntervalIterator to do all the work
LoopDepth.cpp: new file that calculates the depth of a loop, using
IntervalPartitions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71 91177308-0d34-0410-b5e6-96231b3b80d8
2001-06-25 03:55:04 +00:00
Chris Lattner
2d676c961e New file due to the Intervals.h splitup
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66 91177308-0d34-0410-b5e6-96231b3b80d8
2001-06-24 04:07:44 +00:00
Chris Lattner
c9f39b26c0 #include a different header due to Intervals.h splitting up
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63 91177308-0d34-0410-b5e6-96231b3b80d8
2001-06-24 04:05:45 +00:00
Chris Lattner
107109c2cd IntervalPartition & IntervalIterator classes have been split out into
their own .h files & .cpp file


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62 91177308-0d34-0410-b5e6-96231b3b80d8
2001-06-24 04:05:21 +00:00
Chris Lattner
a0eb461263 Prepare for split between Interval, IntervalIterator, and IntervalIPartition
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60 91177308-0d34-0410-b5e6-96231b3b80d8
2001-06-24 03:25:01 +00:00
Chris Lattner
364b147a0f Implement a lot more functionality. Now loop invariant and linear
induction variables are correctly identified.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57 91177308-0d34-0410-b5e6-96231b3b80d8
2001-06-22 02:24:38 +00:00
Chris Lattner
a4ef933a04 Interval::HeaderNode is now accessed thorugh an accessor function
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56 91177308-0d34-0410-b5e6-96231b3b80d8
2001-06-22 02:23:39 +00:00
Chris Lattner
28d480b316 Add a space to the PHI node output code to make it look nicer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53 91177308-0d34-0410-b5e6-96231b3b80d8
2001-06-21 05:29:56 +00:00
Chris Lattner
da956802bd Moved printing code to the Assembly/Writer library.
Code now detects looping intervals


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52 91177308-0d34-0410-b5e6-96231b3b80d8
2001-06-21 05:27:22 +00:00
Chris Lattner
1c54f1da79 Implement the new Interval::isLoop method
Implement destructor to free memory


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51 91177308-0d34-0410-b5e6-96231b3b80d8
2001-06-21 05:26:15 +00:00
Chris Lattner
5ef7afb011 Get rid of a silly printout that isn't needed right now
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45 91177308-0d34-0410-b5e6-96231b3b80d8
2001-06-20 23:09:39 +00:00
Chris Lattner
568320595c Add capability to print a derived interval graph
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@42 91177308-0d34-0410-b5e6-96231b3b80d8
2001-06-20 22:44:38 +00:00
Chris Lattner
ed465bc265 Add capability to build a derived interval graph
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41 91177308-0d34-0410-b5e6-96231b3b80d8
2001-06-20 22:44:32 +00:00
Chris Lattner
2275c1d55d Initial Checking of Interval handling code
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39 91177308-0d34-0410-b5e6-96231b3b80d8
2001-06-20 20:09:55 +00:00
Chris Lattner
d213f0f3a1 Add a test case for interval code
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36 91177308-0d34-0410-b5e6-96231b3b80d8
2001-06-20 19:27:11 +00:00
Chris Lattner
d36c91c9c6 Updates to work with new cfg namespace
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29 91177308-0d34-0410-b5e6-96231b3b80d8
2001-06-13 19:55:22 +00:00
Chris Lattner
ee976f3371 Updates to support
* Changes in PHI node structure


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25 91177308-0d34-0410-b5e6-96231b3b80d8
2001-06-11 15:04:40 +00:00
Chris Lattner
c24d2088dc Updates to support
* Changes in PHI node structure
* Change to PHI syntax


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24 91177308-0d34-0410-b5e6-96231b3b80d8
2001-06-11 15:04:20 +00:00
Chris Lattner
477c2ec3e0 Moved getBinaryOperator to the BinaryOperator class and the getUnaryOperator
to the UnaryOperator class (from the Instruction class).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21 91177308-0d34-0410-b5e6-96231b3b80d8
2001-06-08 21:30:13 +00:00
Chris Lattner
dac6dda315 Updated to work with new CFG.h file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15 91177308-0d34-0410-b5e6-96231b3b80d8
2001-06-07 21:18:45 +00:00
Chris Lattner
b0b0aa3849 Add extra method to PHI node class
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11 91177308-0d34-0410-b5e6-96231b3b80d8
2001-06-07 16:59:37 +00:00
Chris Lattner
f155e13092 Significant rework. DCE is still not done (see #ifdef'd out parts)
but at least the stuff that is checked in, now works.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10 91177308-0d34-0410-b5e6-96231b3b80d8
2001-06-07 16:59:26 +00:00
Chris Lattner
b9a4578df5 Fixed to print slightly differently. Added use counts for labels
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9 91177308-0d34-0410-b5e6-96231b3b80d8
2001-06-07 16:58:55 +00:00
Chris Lattner
bbcfc51f3b Fixes for BB iterators, additional methods added for DCE pass
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8 91177308-0d34-0410-b5e6-96231b3b80d8
2001-06-07 16:58:36 +00:00
Chris Lattner
009505452b Initial revision
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2 91177308-0d34-0410-b5e6-96231b3b80d8
2001-06-06 20:29:01 +00:00