Chris Lattner
e29f6a85ee
Fix bug: test/Regression/Transforms/LevelRaise/2002-09-10-PointerAdds.ll
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3658 91177308-0d34-0410-b5e6-96231b3b80d8
2002-09-10 19:42:53 +00:00
Chris Lattner
2a7c23ef91
Simplify code (somtimes dramatically), by using the new "auto-insert" feature
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of instruction constructors.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3656 91177308-0d34-0410-b5e6-96231b3b80d8
2002-09-10 17:04:02 +00:00
Chris Lattner
3ea5cb0df1
Simplify code (somtimes dramatically), by using the new "auto-insert" feature
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of instruction constructors.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3655 91177308-0d34-0410-b5e6-96231b3b80d8
2002-09-10 17:03:06 +00:00
Chris Lattner
5e76140536
* Clean up code a little bit
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* Fix bug: test/Regression/Transforms/IndVarsSimplify/2002-09-09-PointerIndVar.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3644 91177308-0d34-0410-b5e6-96231b3b80d8
2002-09-10 05:24:05 +00:00
Chris Lattner
1b9029c2f2
Hack unneccesary now that shifts of pointers are no longer legal!
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3640 91177308-0d34-0410-b5e6-96231b3b80d8
2002-09-10 03:50:54 +00:00
Chris Lattner
871d2ce690
Disallow creation of pointer typed shift instructions
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3637 91177308-0d34-0410-b5e6-96231b3b80d8
2002-09-09 20:25:21 +00:00
Chris Lattner
5fb724332a
Factor silly code duplication out
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3627 91177308-0d34-0410-b5e6-96231b3b80d8
2002-09-08 21:47:54 +00:00
Chris Lattner
e30e1cf029
Fix Bug: test/Regression/Transforms/InstCombine/2002-09-08-PointerShiftBug.ll
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3626 91177308-0d34-0410-b5e6-96231b3b80d8
2002-09-08 21:39:07 +00:00
Chris Lattner
bd78696719
Minor simplification
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3619 91177308-0d34-0410-b5e6-96231b3b80d8
2002-09-08 18:55:04 +00:00
Chris Lattner
b0dbd7fc5a
Initial checkin of Correlated Expression Elimination Pass
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3599 91177308-0d34-0410-b5e6-96231b3b80d8
2002-09-06 18:41:55 +00:00
Chris Lattner
f4d4a49311
Fix file header to be accurate, instead of something I just copied and pasted.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3591 91177308-0d34-0410-b5e6-96231b3b80d8
2002-09-06 03:59:56 +00:00
Chris Lattner
a9d2bffeeb
Fix bug with critical edge splitting code where it wouldn't update PHI nodes
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in the old destination block to indicate that the value flows from the new
edge splitting block, not from the original multi-successor block.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3590 91177308-0d34-0410-b5e6-96231b3b80d8
2002-09-06 03:51:45 +00:00
Chris Lattner
4af3ccbbea
Check in the implementation of critical edge detection and splitting
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3588 91177308-0d34-0410-b5e6-96231b3b80d8
2002-09-06 02:35:34 +00:00
Chris Lattner
0c4e886dbf
- Renamed Type::isIntegral() to Type::isInteger()
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- Added new method Type::isIntegral() that is the same as isInteger, but
also accepts bool.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3574 91177308-0d34-0410-b5e6-96231b3b80d8
2002-09-03 01:08:28 +00:00
Chris Lattner
65ad37205e
- Renamed Type::isIntegral() to Type::isInteger()
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- Added new method Type::isIntegral() that is the same as isInteger, but
also accepts bool.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3573 91177308-0d34-0410-b5e6-96231b3b80d8
2002-09-03 01:07:35 +00:00
Chris Lattner
62b14df410
Add constant prop & DIE to InstCombine, so it cleans up after itself
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3568 91177308-0d34-0410-b5e6-96231b3b80d8
2002-09-02 04:59:56 +00:00
Chris Lattner
2a88bb7065
- Implement SCCP of getelementptr instructions
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- Implement SCCP of globals into ConstantExprs hopefully opening new
opportunities for more SCCP.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3555 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-30 23:39:00 +00:00
Chris Lattner
c74cb8698f
- Eliminate the last traces of the 'analysis' namespace
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3550 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-30 22:53:53 +00:00
Chris Lattner
2964f3624c
Really minor cleanups
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3549 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-30 22:53:30 +00:00
Chris Lattner
14987f16b4
- GCSE now no longer counts instructions not removed (due to no common
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dominator as being removed)
- GCSE now uses new Value #'ing interface, instead of dealing with AA itself
- GCSE worklist implementation much simpler, class cleaned up.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3533 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-30 20:22:29 +00:00
Chris Lattner
e6f9a91618
- instcombine demorgan's law: and (not A), (not B) == not (or A, B)
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3495 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-23 18:32:43 +00:00
Chris Lattner
3bb8ad27a8
Eliminated the MemAccessInst class, folding contents into GEP class.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3488 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-22 23:37:24 +00:00
Chris Lattner
cc63f1c674
Eliminated the MemAccessInst class, folding contents into GEP class.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3487 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-22 23:37:20 +00:00
Chris Lattner
24ea74eb9a
Load & StoreInst no longer derive from MemAccessInst, so we don't have
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to handle indexing anymore
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3485 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-22 22:49:05 +00:00
Chris Lattner
8e4fc2598d
*** empty log message ***
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3483 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-22 22:48:32 +00:00
Chris Lattner
f5e84aa088
Add capability of using pointer analysis to LICM
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3478 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-22 21:39:55 +00:00
Chris Lattner
0712d55512
Remove long obsolete comments
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3476 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-22 21:25:54 +00:00
Chris Lattner
c20e24524f
Instcombine PHI's of the form %PN = phi PN, X into X and
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%PN = phi PN, PN, PN into 0 (because the phi must not be reachable)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3470 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-22 20:22:01 +00:00
Chris Lattner
d456ec983c
Convert GCSE pass to use new alias analysis infrastructure
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3463 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-22 18:24:48 +00:00
Chris Lattner
ff9a9e5b13
Do not generate load/store instructions with indexing.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3461 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-22 16:41:31 +00:00
Chris Lattner
a69fd90358
- Split Dominators.h into Dominators.h & PostDominators.h
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3432 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-21 23:43:50 +00:00
Chris Lattner
b63b29d9b0
Do not generate loads/stores with indexing
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3422 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-21 22:11:33 +00:00
Chris Lattner
25ba05972f
Remove extraneous #includes
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3421 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-21 22:11:14 +00:00
Chris Lattner
3f9b28d075
Do not create load/stores with indexes
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3420 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-21 22:10:52 +00:00
Chris Lattner
905641bb01
Remove an optimization that isn't.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3419 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-21 22:10:06 +00:00
Chris Lattner
546b027b3e
- Do not expose ::ID from any of the analyses anymore.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3417 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-21 17:09:49 +00:00
Chris Lattner
b319faff77
fixed bug: test/Regression/Linker/2002-08-20-ConstantExpr.ll
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3412 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-20 19:35:11 +00:00
Chris Lattner
05bd1b2eee
- instcombine (~(a < b)) into (a >= b)
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3406 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-20 18:24:26 +00:00
Chris Lattner
f02c46834a
- implemented instcombine of phi (X, X, X) -> X
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3397 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-20 15:35:35 +00:00
Chris Lattner
0bfb6ba3e3
- Made GlobalDCE worklist driven, making it more successful. Now can handle
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cases like: test/Regression/Transforms/GlobalDCE/2002-08-17-WorkListTest.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3381 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-18 01:28:30 +00:00
Chris Lattner
9b76123124
Promote getelementptr instructions to constexprs if we can.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3368 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-17 22:21:59 +00:00
Chris Lattner
3ecce66e25
Handle more cases of cast-of-cast in more general forms.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3347 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-15 16:15:25 +00:00
Chris Lattner
5cf6f112e6
Implement capability to fold this:
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uint %test4(int %A, int %B) {
%COND = setlt int %A, %B ; <bool> [#uses=1]
%result = cast bool %COND to uint ; <uint> [#uses=1]
ret uint %result
}
into a single cast instruction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3339 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-14 23:21:10 +00:00
Chris Lattner
b9a7793ecb
Avoid creating 'load X, 0' instead of just 'load X'
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This _trivial_ change causes GCSE and LICM to be much more effective at
hoisting loads. Before it would not be able to eliminate 'load X' if there
was just a dominating 'load X, 0' because the expressions were not identical.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3337 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-14 22:11:52 +00:00
Chris Lattner
db6e4d6625
Avoid inserting an entry block unless we need it
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3336 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-14 21:35:02 +00:00
Chris Lattner
ad333484ea
Remove support for Not ConstantExpr. This simplifies the unary case to only
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have to support the cast instruction, so the function is renamed to getCast.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3328 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-14 18:24:09 +00:00
Chris Lattner
9b2b80fd48
Fix bug introduced in last checkin due to CastInst not being visible
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3327 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-14 18:22:19 +00:00
Chris Lattner
0513e9fe03
Remove support for NOT instruction
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3323 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-14 18:18:02 +00:00
Chris Lattner
48a4531ee4
Remove extra #includes
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3322 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-14 18:17:32 +00:00
Chris Lattner
b804760b56
Remove support for unary operators
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3318 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-14 17:53:45 +00:00