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2008-05-10Cosmetic changes:Bill Wendling
- Comment fixes. - Moar whitespace. - Made ivars "private" by default. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50926 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-09Add a pattern to do move the low element of a v4f32 and zero extend the rest.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50922 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-09Remove an evil vector bool. Cosmetic refactoring,Dale Johannesen
no functional change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50921 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-09Handle a few more cases of folding load i64 into xmm and zero top bits.Evan Cheng
Note, some of the code will be moved into target independent part of DAG combiner in a subsequent patch. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50918 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-09Make OpActionsCapacity multiple of 4.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50917 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-09Rewrite tail merging algorithm to handle theDale Johannesen
case where there are multiple blocks with a large number of common tail instructions more efficiently (compile time optimization). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50916 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-09put LibCallAliasAnalysis into anonymous namespace to avoidTorok Edwin
clashes on ::X git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50912 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-09Simplify test.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50911 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-09Rename Example.td to Graph.td.Mikhail Glushenkov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50910 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-09use doxygen comments for makeBuffer()Nick Kledzik
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50908 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-09don't sink invokes, even if they are readonly. This fixes aChris Lattner
crash on kimwitu++. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50901 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-09Fix a type and formatting.Duncan Sands
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50900 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-09ignore Output dirsGabor Greif
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50899 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-09ignore AutoGenerated.inc, it is created by TableGenGabor Greif
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50898 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-09ignore Output dirGabor Greif
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50897 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-09Reapply 50867: A small refactoring (extract method) + some comment fixes.Mikhail Glushenkov
Fixed the build breakage, sorry for that. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50895 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-09add support for pattern matching 'neg'Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50883 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-09Implement PR2298. This transforms:Chris Lattner
~x < ~y --> y < x -x == -y --> x == y git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50882 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-09restore doxygen comment.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50881 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-09<rdar://problem/5917641> use getMemBufferCopy if supplied buffer is not ↵Nick Kledzik
already zero terminated git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50880 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-08Check for validity of aliasee pointer before dereference.Anton Korobeynikov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50878 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-08Use movq to move low half of XMM register and zero-extend the rest.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50874 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-08conservatively say that volatile stores read memory.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50872 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-08Revertin 50867 since it was breaking the build.Tanya Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50871 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-08store can't read from memory.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50869 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-08Add -E and -S optionsMikhail Glushenkov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50868 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-08A small refactoring (extract method) + some comment fixes.Mikhail Glushenkov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50867 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-08Remove dead return. Thanks to Bill for the review!Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50863 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-08Improve pass documentation and comments.Gordon Henriksen
Patch by Matthijs Kooijman! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50861 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-08More than just loads can read from memory: readonly calls like strlenChris Lattner
also need to be checked for memory modifying instructions before we can sink them. THis fixes the second half of PR2297. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50860 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-08Make instcombine's DSE respect loads as well as stores. It is not safe toChris Lattner
delete the first store in: store x -> p load p store y -> p This is for PR2297. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50859 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-08add a new Instruction::mayReadFromMemory predicate, makeChris Lattner
Instruction::mayWriteToMemory stronger for invokes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50858 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-08Check linkage.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50851 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-08Get exception handling working again on 64 bitDuncan Sands
Darwin. This is a hack of course, but it does at least look at the right thing: gotpcrel means that this is already an offset, so an explicit offset is not needed (and wrong). I think this is good enough for the moment: Anton is working on something better. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50850 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-08new testcase.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50841 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-08Add support for constant folding the 'offsetof' pattern even if theChris Lattner
base is not zero. This fixes test/C++Frontend/2008-05-07-CrazyOffsetOf.cpp git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50840 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-08Handle vector move / load which zero the destination register top bits (i.e. ↵Evan Cheng
movd, movq, movss (addr), movsd (addr)) with X86 specific dag combine. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50838 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-07Add nounwind.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50837 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-07Turn StripPointerCast() into a methodAnton Korobeynikov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50836 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-07Use Doxygen-style comments.Mikhail Glushenkov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50833 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-07Make the interface of CStrInCStrNoCase be the same as strcasestr.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50828 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-07Add a new LibCallAliasAnalysis pass, which is parameterizedChris Lattner
by an instance of LibCallInfo to provide mod/ref info of standard library functions. This is powerful enough to say that 'sqrt' is readonly except that it modifies errno, or that "printf doesn't store to memory unless the %n constraint is present" etc. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50827 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-07Fix some serious logical errors in CStrInCStrNoCase pointed out by Bill.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50826 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-07Output correct exception handling and frame infoDuncan Sands
on x86-64 linux. This causes no regressions on 32 bit linux and 32 bit ppc. More tests pass on 64 bit ppc with no regressions. I didn't turn on eh on 64 bit linux because the intrinsics needed to compile the eh runtime aren't done yet. But if you turn it on and link with the mainline runtime then eh seems to work fine on x86-64 linux with this patch. Thanks to Dale for testing. The main point of the patch is that if you output that some object is encoded using 4 bytes you had better not output 8 bytes for it: the patch makes everything consistent. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50825 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-07Guard for empty strings in CStrInCStrNoCase.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50823 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-07Added CStrInCStrNoCase, a portable implementation of strcasestr.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50821 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-07Add a new interface for describing the behavior of library calls. ThisChris Lattner
Currently is sufficient to describe mod/ref behavior but will hopefully eventually be extended for other purposes. This isn't used by anything yet. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50820 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-07Typo.Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50805 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-07Yet another nasty spiller bug.Evan Cheng
%ecx = op store %cl<kill>, (addr) (addr) = op %al It's not safe to unfold the last operand and eliminate store even though %cl is marked kill. It's a sub-register use which means one of its super-register(s) may be used below. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50794 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-07Fix a bug in the ComputeMaskedBits logic for multiply.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50793 91177308-0d34-0410-b5e6-96231b3b80d8
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