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2010-01-01add a simple instcombine xform, simplify another one to use hasAllZeroIndices()Chris Lattner
instead of hand rolling a loop. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92403 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-01generalize the pointer difference optimization to handleChris Lattner
a constantexpr gep on the 'base' side of the expression. This completes comment #4 in PR3351, which comes from 483.xalancbmk. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92402 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-01teach instcombine to optimize pointer difference idioms involving constantChris Lattner
expressions. This is a step towards comment #4 in PR3351. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92401 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-01use 'match' to simplify some code.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92400 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-01implement the transform requested in PR5284Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92398 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-01Fix a warning on gcc 4.4.Mikhail Glushenkov
SelectionDAGBuilder.cpp:4294: warning: suggest explicit braces to avoid ambiguous ‘else’ git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92395 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-01Trailing whitespace, 80-col violations.Mikhail Glushenkov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92394 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-01Minor simplifactions.Mikhail Glushenkov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92393 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-01Typo.Mikhail Glushenkov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92392 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-01Make CheckForSuperfluousOptions handle list form of 'switch_on' correctly.Mikhail Glushenkov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92391 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-01Minor simplifications.Mikhail Glushenkov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92390 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-01Better error message.Mikhail Glushenkov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92389 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-01Teach codegen to lower llvm.powi to an efficient (but not optimal) Chris Lattner
multiply sequence when the power is a constant integer. Before, our codegen for std::pow(.., int) always turned into a libcall, which was really inefficient. This should also make many gfortran programs happier I'd imagine. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92388 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-01Make this more likely to generate a libcall.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92387 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-01add missing line.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92384 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-01add a few trivial instcombines for llvm.powi.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92383 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-01update this. To take the next step, llvm.powi should be generalized to workChris Lattner
on integers as well and codegen should lower them to branch trees. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92382 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-01When factoring multiply expressions across adds, factor both Chris Lattner
positive and negative forms of constants together. This allows us to compile: int foo(int x, int y) { return (x-y) + (x-y) + (x-y); } into: _foo: ## @foo subl %esi, %edi leal (%rdi,%rdi,2), %eax ret instead of (where the 3 and -3 were not factored): _foo: imull $-3, 8(%esp), %ecx imull $3, 4(%esp), %eax addl %ecx, %eax ret this started out as: movl 12(%ebp), %ecx imull $3, 8(%ebp), %eax subl %ecx, %eax subl %ecx, %eax subl %ecx, %eax ret This comes from PR5359. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92381 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-01test case we alredy get right.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92380 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-01Remove old header.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92378 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-01clean up some comments.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92377 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-01switch from std::map to DenseMap for rank data structures.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92375 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-31Remove derelict serialization code. Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92374 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-31reuse negates where possible instead of always creating them from scratch.Chris Lattner
This allows us to optimize test12 into: define i32 @test12(i32 %X) { %factor = mul i32 %X, -3 ; <i32> [#uses=1] %Z = add i32 %factor, 6 ; <i32> [#uses=1] ret i32 %Z } instead of: define i32 @test12(i32 %X) { %Y = sub i32 6, %X ; <i32> [#uses=1] %C = sub i32 %Y, %X ; <i32> [#uses=1] %Z = sub i32 %C, %X ; <i32> [#uses=1] ret i32 %Z } git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92373 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-31we don't need a smallptrset to detect duplicates, the values areChris Lattner
sorted, so we can just do a linear scan. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92372 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-31make reassociate more careful about not leaving around dead mul'sChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92370 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-31remove debugChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92369 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-31teach reassociate to factor x+x+x -> x*3. While I'm at it,Chris Lattner
fix RemoveDeadBinaryOp to actually do something. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92368 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-31change reassociate to use SmallVector for its key datastructuresChris Lattner
instead of std::vector. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92366 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-31change an if to an assert, fix comment.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92364 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-31move the rest of the add optimization code out to OptimizeAdd,Chris Lattner
improve some comments, simplify a bit of code. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92363 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-31factor statistic updating better.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92362 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-31Silence compiler warning.Benjamin Kramer
warning: comparison between signed and unsigned integer expressions git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92359 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-31simple fix for an incorrect factoring which causes aChris Lattner
miscompilation, PR5458. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92354 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-31merge some more tests in.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92353 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-31filecheckizeChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92352 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-31fix refactoroChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92349 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-31factor code out into helper functions.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92347 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-31switch some std::vector's to smallvector. Reduce nesting.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92346 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-31use more modern datastructures.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92344 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-31clean up -debug output.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92343 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-31Document the edit-distance algorithm used in StringRef, switch it overDouglas Gregor
to SmallVector, and add a unit test. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92340 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-31this #include is ok.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92338 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-31fix Analysis/DebugInfo.h to not include Metadata.h. Do thisChris Lattner
by moving one method out of line and eliminating redundant checks from other methods. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92337 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-31add some basic named MD tests.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92336 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-31use early exits to reduce indentation.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92335 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-31eliminate another copy of the mdnode printing logic, simplify theChris Lattner
one that remains. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92334 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-31random tidying for MDNode printing.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92333 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-31eliminate a bunch of useless forwarding functions with one caller.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92332 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-31make mdnMap type safe, rename accessors for consistency with the rest of llvm.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92331 91177308-0d34-0410-b5e6-96231b3b80d8
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