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2008-10-17Define patterns for shld and shrd that match immediateDan Gohman
shift counts, and patterns that match dynamic shift counts when the subtract is obscured by a truncate node. Add DAGCombiner support for recognizing rotate patterns when the shift counts are defined by truncate nodes. Fix and simplify the code for commuting shld and shrd instructions to work even when the given instruction doesn't have a parent, and when the caller needs a new instruction. These changes allow LLVM to use the shld, shrd, rol, and ror instructions on x86 to replace equivalent code using two shifts and an or in many more cases. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57662 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-17Use 0 instead of false to return a null pointer.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57660 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-16Fix this test so it actually runs the grep lines.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57653 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-16Trim #includes.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57649 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-16fix typo noticed by sdtChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57644 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-16Introduce a typing refinenement on tagged dataGabor Greif
using the 'volatile' qualifier. This should not have any operational consequences on code, because tags should always be stripped off (giving a non-volatile pointer) before dereferencing. The new qualification is there to catch some attempts to use tagged pointers in a context where an untagged pointer is appropriate. Notably this approach does not catch dereferencing of tagged pointers, but helps in separating the two concepts a bit. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57641 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-16Re-apply Makefile changes. Fix build with srcdir != objdir.Mikhail Glushenkov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57636 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-16Fix warnings about mb/me being potentially usedDuncan Sands
uninitialized in these functions with gcc-4.3. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57635 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-16Fix "large integer implicitly truncated to unsigned type"Duncan Sands
warning on x86-64 with gcc-4.3. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57634 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-16Testcase for PR2762.Duncan Sands
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57633 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-16add some notesChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57631 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-16add some notes and a file to collect unimplemented features in theChris Lattner
x86 backend. These will all be answered with "patches welcome", so a PR doesn't help drive them along. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57630 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-16mark some targets as experimental. Andrew, if you think that Alpha isChris Lattner
basically working, feel free to remove the tag. The other targets have really basic things that break them. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57628 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-16Verify prefetch arguments, PR2576.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57626 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-16apply Eli's patch for PR2165 and provide a testcase.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57625 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-16Const-ify several TargetInstrInfo methods.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57622 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-16Remove an unused variable.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57621 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-16Fix Instruction::isIdenticalTo and isSameOperationAs to recognizeDan Gohman
additional information in Loads, Stores, Calls, Invokes, InsertValueInsts, and ExtractValueInsts. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57620 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-16Fix a calculation error in comments.Zhongxing Xu
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57619 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-16Rename AliasSet to SubRegs, to reflect changes in the surrounding code.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57618 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-16Move the include of MachineLocation.h into MachineModuleInfo.hDan Gohman
because it declares a std::vector<MachineMove>, and strict concept checking requires the definition of MachineMove to be available. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57617 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-16Implement a SmallVector insert method that can insert multipleDan Gohman
copies of a value, and add several additional utilities to make SmallVector better conform to the Container concept. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57616 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-16Fix several places that called mapped_iterator's constructor withoutDan Gohman
passing in a function object. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57615 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-16Fix a subtle bug in DeadMachineInstructionElim's livenessDan Gohman
computation. A def of a register doesn't necessarily kill live super-registers. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57614 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-16Fix the predicate for memop64 to be a regular load, not justDan Gohman
an unindexed load. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57612 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-15Teach instcombine's visitLoad to scan back several instructionsDan Gohman
to find opportunities for store-to-load forwarding or load CSE, in the same way that visitStore scans back to do DSE. Also, define a new helper function for testing whether the addresses of two memory accesses are known to have the same value, and use it in both visitStore and visitLoad. These two changes allow instcombine to eliminate loads in code produced by front-ends that frequently emit obviously redundant addressing for memory references. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57608 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-15Correct the name of isTrapping in comments.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57606 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-15Fix whitespace in a comment.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57605 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-15Testcase for PR2894.Duncan Sands
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57604 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-15Remove naming Tilmann for generics.Nicolas Geoffray
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57599 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-15Add global variable to test for consistencyAnton Korobeynikov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57597 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-15This is not failing anymoreAnton Korobeynikov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57596 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-15Also properly handle linking of strong alias and weak globalAnton Korobeynikov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57595 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-15Properly handle linking of strong alias with weak function, this fixes PR2883Anton Korobeynikov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57594 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-15Testcase for PR1638.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57590 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-15Fix a missing space after the return type in invoke statements.Dan Gohman
This fixes PR2894. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57589 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-15Fix PR2115 by doxygenating Use more, and make some more methods private.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57587 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-15move PR1941 here.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57586 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-15Unbreak the build. Please test out the proper fix for this by compiling LLVMBill Wendling
with the build directory different from the source directory. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57583 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-15move PR1604 here.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57582 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-15move PR1488 into this file.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57579 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-15Temporary revert r57567 and unbreak the build.Anton Korobeynikov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57578 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-15regenerateNuno Lopes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57577 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-15fix memleak in GetForwardRefForGlobal()Nuno Lopes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57576 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-15regenerateNuno Lopes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57575 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-15fix memleak in getTypeVal()Nuno Lopes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57574 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-15regenerateNuno Lopes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57573 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-15fix memleak in ResolveTypeTo()Nuno Lopes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57572 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-15catch one more typo, canonicalize LLVMdevGabor Greif
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57571 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-15fix some validation errors, improve formatting, squash a strange pluralGabor Greif
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57570 91177308-0d34-0410-b5e6-96231b3b80d8
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