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2002-09-10Simplify code (somtimes dramatically), by using the new "auto-insert" featureChris Lattner
of instruction constructors. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3656 91177308-0d34-0410-b5e6-96231b3b80d8
2002-09-10Simplify code (somtimes dramatically), by using the new "auto-insert" featureChris Lattner
of instruction constructors. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3655 91177308-0d34-0410-b5e6-96231b3b80d8
2002-09-10* Clean up code a little bitChris Lattner
* 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
2002-09-10Hack unneccesary now that shifts of pointers are no longer legal!Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3640 91177308-0d34-0410-b5e6-96231b3b80d8
2002-09-09Disallow creation of pointer typed shift instructionsChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3637 91177308-0d34-0410-b5e6-96231b3b80d8
2002-09-08Factor silly code duplication outChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3627 91177308-0d34-0410-b5e6-96231b3b80d8
2002-09-08Fix Bug: test/Regression/Transforms/InstCombine/2002-09-08-PointerShiftBug.llChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3626 91177308-0d34-0410-b5e6-96231b3b80d8
2002-09-08Minor simplificationChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3619 91177308-0d34-0410-b5e6-96231b3b80d8
2002-09-06Initial checkin of Correlated Expression Elimination PassChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3599 91177308-0d34-0410-b5e6-96231b3b80d8
2002-09-06Fix file header to be accurate, instead of something I just copied and pasted.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3591 91177308-0d34-0410-b5e6-96231b3b80d8
2002-09-06Fix bug with critical edge splitting code where it wouldn't update PHI nodesChris Lattner
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
2002-09-06Check in the implementation of critical edge detection and splittingChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3588 91177308-0d34-0410-b5e6-96231b3b80d8
2002-09-03 - Renamed Type::isIntegral() to Type::isInteger()Chris Lattner
- 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- Renamed Type::isIntegral() to Type::isInteger()Chris Lattner
- 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
2002-09-02Add constant prop & DIE to InstCombine, so it cleans up after itselfChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3568 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-30 - Implement SCCP of getelementptr instructionsChris Lattner
- 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 - Eliminate the last traces of the 'analysis' namespaceChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3550 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-30Really minor cleanupsChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3549 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-30 - GCSE now no longer counts instructions not removed (due to no commonChris Lattner
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
2002-08-23 - instcombine demorgan's law: and (not A), (not B) == not (or A, B)Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3495 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-22Eliminated the MemAccessInst class, folding contents into GEP class.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3488 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-22Eliminated the MemAccessInst class, folding contents into GEP class.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3487 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-22Load & StoreInst no longer derive from MemAccessInst, so we don't haveChris Lattner
to handle indexing anymore git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3485 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-22*** empty log message ***Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3483 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-22Add capability of using pointer analysis to LICMChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3478 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-22Remove long obsolete commentsChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3476 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-22Instcombine PHI's of the form %PN = phi PN, X into X andChris Lattner
%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
2002-08-22Convert GCSE pass to use new alias analysis infrastructureChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3463 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-22Do not generate load/store instructions with indexing.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3461 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-21 - Split Dominators.h into Dominators.h & PostDominators.hChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3432 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-21Do not generate loads/stores with indexingChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3422 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-21Remove extraneous #includesChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3421 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-21Do not create load/stores with indexesChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3420 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-21Remove an optimization that isn't.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3419 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-21- Do not expose ::ID from any of the analyses anymore.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3417 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-20fixed bug: test/Regression/Linker/2002-08-20-ConstantExpr.llChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3412 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-20 - instcombine (~(a < b)) into (a >= b)Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3406 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-20 - implemented instcombine of phi (X, X, X) -> XChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3397 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-18 - Made GlobalDCE worklist driven, making it more successful. Now can handleChris Lattner
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
2002-08-17Promote getelementptr instructions to constexprs if we can.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3368 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-15Handle more cases of cast-of-cast in more general forms.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3347 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-14Implement capability to fold this:Chris Lattner
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
2002-08-14Avoid creating 'load X, 0' instead of just 'load X'Chris Lattner
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
2002-08-14Avoid inserting an entry block unless we need itChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3336 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-14Remove support for Not ConstantExpr. This simplifies the unary case to onlyChris Lattner
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
2002-08-14Fix bug introduced in last checkin due to CastInst not being visibleChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3327 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-14Remove support for NOT instructionChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3323 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-14Remove extra #includesChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3322 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-14Remove support for unary operatorsChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3318 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-14 - Fix InstCombine pass to not generate or process NOT instructionsChris Lattner
- Fixed testcases to not use them either. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3315 91177308-0d34-0410-b5e6-96231b3b80d8
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