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2010-11-10Fix ARM encoding of LDM+Return instruction.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118730 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-10When clearing a non-local pointer dependency cache entry, clearDan Gohman
the reverse map too. This fixes seflhost build errors. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118729 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-10Update the section index map after we add the medatada sections.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118728 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-10Take care of special characters while creating named MDNode name to hold ↵Devang Patel
function specific local variable's info. This fixes radar 8653152. I am checking in testcase as a separate check-in. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118726 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-10Use SectionIndexMap in WriteSymbolTable to make it a little less brittle.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118725 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-10Factor out the code for computing an AliasAnalysis::LocationDan Gohman
for a given instruction into a helper function. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118723 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-10Factor some code into ComputeIndexMap.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118722 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-10Fully invalidate cached results when a prior query's size orDan Gohman
type is insufficient for, or incompatible with, the current query. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118721 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-10Fix an issue where we tried to turn a v2f32 build_vector into a v4i32 build ↵Nate Begeman
vector with 2 elts git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118720 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-10Reduce the maximum recursion depth, 5 seems pointlessly too much.Duncan Sands
Probably it should just be 1, but compromise with 3. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118718 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-10Enhance GVN to do more precise alias queries for non-local memoryDan Gohman
references. For example, this allows gvn to eliminate the load in this example: void foo(int n, int* p, int *q) { p[0] = 0; p[1] = 1; if (n) { *q = p[0]; } } git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118714 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-10Change the String<size> methods to take a fragment instead of a buffer.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118709 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-10Basic rematerialization during splitting.Jakob Stoklund Olesen
Whenever splitting wants to insert a copy, it checks if the value can be rematerialized cheaply instead. Missing features: - Delete instructions when all uses have been rematerialized. - Truncate live ranges to the remaining uses after rematerialization. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118702 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-10RABasic is nearly functionally complete. There are a few remainingAndrew Trick
benchmarks hitting an assertion. Adds LiveIntervalUnion::collectInterferingVRegs. Fixes "late spilling" by checking for any unspillable live vregs among all physReg aliases. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118701 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-10Use MCSectionELF in places we know we have an ELF section.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118699 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-10Use getValueOperand() and getPointerOperand() on load and storeDan Gohman
instructions instead of hard-coding operand numbers. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118698 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-10Teach InstructionSimplify how to look through PHI nodes. Since PHIDuncan Sands
nodes can be used in loops, this could result in infinite looping if there is no recursion limit, so add such a limit. It is also used for the SelectInst case because in theory there could be an infinite loop there too if the basic block is unreachable. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118694 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-10Add a doesAccessArgPointees helper function, and update code to useDan Gohman
it, and to be consistent. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118692 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-10Simplify and clean up MC symbol lookup for ARM constant pool values. This fixesJim Grosbach
double quoting of ObjC symbol names in constant pool entries. rdar://8652107 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118688 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-10Factor out the code for testing whether a function accessesDan Gohman
arbitrary memory into a helper function, and adjust some comments. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118687 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-10Fix Whitespace.Michael J. Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118683 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-10System/Win32/Path: Implement isSymLink.Michael J. Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118681 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-10Simplify binary operations where one operand is a select instruction.Duncan Sands
The simplifications performed here never create new instructions, they only return existing instructions (or a constant), and so are always a win. In theory they should transform (for example) %z = and i32 %x, %y %s = select i1 %cond, i32 %y, i32 %z %r = and i32 %x, %s into %r = and i32 %x, y but in practice they get into a fight with instcombine, and lose. Unfortunately instcombine does a poor job in this case. Nonetheless I'm committing this transform to make it easier to discuss what to do to make peace with instcombine. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118679 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-10Win32/Process.inc: [PR8527] Process::FileDescriptorIsDisplayed(fd) should ↵NAKAMURA Takumi
not check by FILE_TYPE_CHAR. It must be better to check it with Console API. The special file "NUL" is FILE_TYPE_CHAR with GetFileType(h). It was treated as display device and discarding output to NUL had failed. (eg. opt -o nul) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118678 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-10Update ARMConstantPoolValue to not use a modifier string. Use an explicitJim Grosbach
VariantKind marker to indicate the additional information necessary. Update MC to handle the new Kinds. rdar://8647623 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118671 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-10Add clo instruction. Patch by Akira Hatanaka (ahatanaka@mips.com) with some ↵Bruno Cardoso Lopes
minor tweaks git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118667 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-10When checking that the necessary bits are zero inDale Johannesen
order to reduce ((x<<30)>>24) to x<<6, check the correct bits. PR 8547. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118665 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-10Emit a '!' if this is a "writeback" register or memory address.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118662 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-10Simplify the LiveRangeEdit::canRematerializeAt() interface a bit.Jakob Stoklund Olesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118661 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-10Make ModRefBehavior a lattice. Use this to clean up AliasAnalysisDan Gohman
chaining and simplify FunctionAttrs' GetModRefBehavior logic. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118660 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-10Rename a parameter to avoid confusion with a local variableMatt Beaumont-Gay
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118656 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-09Emit the warning about the register list not being in ascending order only once.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118653 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-09Fixed version of 118639 with an extra assert to catch similar problemsRafael Espindola
earlier. Implicit bool -> int conversions are evil! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118651 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-09s/std::vector/SmallVector/Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118648 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-09Revert previous patch. Missed a case.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118645 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-09Delete the allocated vector.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118644 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-09Define the subtarget feature for the architecture version,Bob Wilson
as derived from the target triple. This is important for enabling features that are implied based on the architecture version. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118643 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-09Do not use MEMBARRIER_MCR for any Thumb code.Bob Wilson
It is only supported for ARM code. Normally Thumb2 code would use DMB instead, but depending on how the compiler is invoked (e.g., -mattr=-db) that might be disabled. This prevents a "cannot select MEMBARRIER_MCR" error in that situation. Radar 8644195 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118642 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-09Two types of instructions have register lists:Bill Wendling
* LDM, et al, uses a bit mask to indicate the register list. * VLDM, et al, uses a base register plus number. The LDM instructions may be non-contiguous, but the VLDM ones must be contiguous. Those are semantic checks that should be done later in the compiler. Also postpone the creation of the bit mask until it's needed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118640 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-09Remove IsExplicit. It was always false.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118639 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-09Change the ARMConstantPoolValue modifier string to an enumeration. This willJim Grosbach
help in MC'izing the references that use them. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118633 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-09Adds RABasic verification and tracing.Andrew Trick
(retry now that the windows build is green) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118630 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-09Teach FunctionAttrs about the VAArg instruction.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118627 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-09Use the AliasAnalysis interface to determine how a Function accessesDan Gohman
memory. This isn't a real improvement with present day AliasAnalysis implementations; it's mainly for consistency. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118624 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-09VAArg doesn't capture its operand.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118623 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-09Teach AliasAnalysis about AccessesArgumentsReadonly.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118621 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-09Teach LICM and AliasSetTracker about AccessesArgumentsReadonly.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118618 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-09Teach FunctionAttrs about AccessesArgumentsReadonly.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118617 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-09Add a trivial virtual dtor to AbstractRegisterDescription to appeaseMatt Beaumont-Gay
-Wnon-virtual-dtor. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118616 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-09Reverting r118604. Windows build broke.Andrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118613 91177308-0d34-0410-b5e6-96231b3b80d8