Chris Lattner ff26ab2277 Don't break critical edges for single-bb loops, this helps with PR1877, though ...

it is only a partial fix.  This change is noise for most programs, but
speeds up Shootout-C++/matrix by 20%, Ptrdist/ks by 24%, smg2000 by 8%,
hexxagon by 9%, bzip2 by 9% (not sure I trust this), ackerman by 13%, etc.

OTOH, it slows down Shootout/fib2 by 40% (I'll update PR1877 with this info).



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45354 91177308-0d34-0410-b5e6-96231b3b80d8

2007-12-25 19:06:45 +00:00

..

ADCE.cpp

Integrate the readonly/readnone logic more deeply

2007-12-01 07:51:45 +00:00

BasicBlockPlacement.cpp

Fix typo in comment.

2007-05-06 13:37:16 +00:00

CodeGenPrepare.cpp

Don't break critical edges for single-bb loops, this helps with PR1877, though

2007-12-25 19:06:45 +00:00

CondPropagate.cpp

Fix PR1575 and test/Transforms/CondProp/2007-08-01-InvalidRead.ll

2007-08-02 04:47:05 +00:00

ConstantProp.cpp

Fix typo in comment.

2007-05-06 13:37:16 +00:00

CorrelatedExprs.cpp

Add explicit keywords.

2007-11-19 15:30:20 +00:00

DCE.cpp

Fix GLIBCXX_DEBUG errors. Erase invalidates std::vector iterators

2007-12-17 17:39:51 +00:00

DeadStoreElimination.cpp

Integrate the readonly/readnone logic more deeply

2007-12-01 07:51:45 +00:00

GCSE.cpp

Use DominatorTree instead of ETForest.

2007-06-07 18:45:06 +00:00

GVN.cpp

Fix several cache coherence bugs in MemDep/GVN that were found. Also add some (disabled) debugging code

2007-12-08 01:37:09 +00:00

GVNPRE.cpp

explicit keywords.

2007-09-24 15:48:49 +00:00

IndVarSimplify.cpp

Move the SCEV object factors from being static members of the individual

2007-10-22 18:31:58 +00:00

InstructionCombining.cpp

implement InstCombine/shift-trunc-shift.ll. This allows

2007-12-22 09:07:47 +00:00

LICM.cpp

Integrate the readonly/readnone logic more deeply

2007-12-01 07:51:45 +00:00

LoopIndexSplit.cpp

If ExitValue operand is also defined in Loop header then

2007-12-03 19:17:21 +00:00

LoopRotation.cpp

Make LoopInfoBase more generic, in preparation for having MachineLoopInfo. This involves a small interface change.

2007-11-27 03:43:35 +00:00

LoopStrengthReduce.cpp

Clean up previous patch: PHI uses should not prevent iv reuse if all other uses are addresses. This trades a constant multiply for one fewer iv.

2007-12-20 02:20:53 +00:00

LoopUnroll.cpp

Make LoopInfoBase more generic, in preparation for having MachineLoopInfo. This involves a small interface change.

2007-11-27 03:43:35 +00:00

LoopUnswitch.cpp

Get rid of annoying spaces.

2007-12-17 17:40:29 +00:00

LowerGC.cpp

Change the PointerType api for creating pointer types. The old functionality of PointerType::get() has become PointerType::getUnqual(), which returns a pointer in the generic address space. The new prototype of PointerType::get() requires both a type and an address space.

2007-12-17 01:12:55 +00:00

LowerPacked.cpp

Finishing initial docs for all transformations in Passes.html.

2007-11-04 16:15:04 +00:00

Makefile

DONT_BUILD_RELINKED is gone and implied by BUILD_ARCHIVE now

2005-10-24 02:26:13 +00:00

PredicateSimplifier.cpp

Executive summary: getTypeSize -> getTypeStoreSize / getABITypeSize.

2007-11-01 20:53:16 +00:00

Reassociate.cpp

Fix typo in comment.

2007-05-06 13:37:16 +00:00

Reg2Mem.cpp

Reg2Mem cleanup and optimizations:

2007-10-21 23:05:16 +00:00

ScalarReplAggregates.cpp

At the point of calculating the shift amount, the

2007-11-06 20:39:11 +00:00

SCCP.cpp

Use empty() member functions when that's what's being tested for instead

2007-10-03 19:26:29 +00:00

SimplifyCFG.cpp

Rename isNoReturn to doesNotReturn, and isNoUnwind to

2007-12-18 09:59:50 +00:00

TailDuplication.cpp

Disable tail duplication of call instructions. The cost

2007-11-04 06:37:55 +00:00

TailRecursionElimination.cpp

Prevent tailcallelim from breaking "recursive" calls to builtins.

2007-09-10 20:58:55 +00:00