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2008-10-17Add implicit defs of XMM8 to XMM15 on 32-bit call instructions. While this ↵Evan Cheng
is not technically true, it tells tblgen that these instructions "clobber" the entire XMM register file. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57723 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-17Add RCBarriers to TargetInstrDesc. It's a list of register classes the given ↵Evan Cheng
instruction can "clobber". For example, on x86 the call instruction can modify all of the XMM and fp stack registers. TableGen has been taught to generate the lists from instruction definitions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57722 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-17Fix PR2898. Spiller delete a store for reuse before it knows for sure the ↵Evan Cheng
reuse happened. Patch by Lang Hames! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57720 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-17add support for 128 bit aggregates.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57715 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-17The Dwarf writer was comparing mangled and unmangled names for C++ code when weBill Wendling
have an unreachable block in a function. This was triggering the assert. This is a horrid hack to cover this up. Oh! for a good debug info architecture! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57714 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-17Added MemIntrinsicNode which is useful to represent target intrinsics thatMon P Wang
touches memory and need an associated MemOperand git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57712 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-17Factor out the code for mapping LLVM IR condition opcodes toDan Gohman
ISD condition opcodes into helper functions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57710 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-17add support for 128 bit inputs on both x86-64 and x86-32.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57709 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-17Fix a bug where the x86 backend would reject 64-bit r constraints whenChris Lattner
in 32-bit mode instead of assigning a register pair. This has nothing to do with PR2356, but I happened to notice it while working on it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57704 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-17Fix PR2356 on PowerPC: if we have an input and output that are tied togetherChris Lattner
that have different sizes (e.g. i32 and i64) make sure to reserve registers for the bigger operand. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57699 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-17remove an xfailed test.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57695 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-17remove this test: it is xfailed anyway, and is failing for a reasonChris Lattner
other than why it was xfailed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57694 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-17Fix lfence and mfence encoding. These look like MRM5r and MRM6r instructions ↵Evan Cheng
except they do not have any operands. The RegModRM byte is encoded with register number 0. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57692 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-17getX86RegNum has long been moved to X86RegisterInfo.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57691 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-17refactor some code into a helper method, no functionality change.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57690 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-17Keep track of *which* input constraint matches an outputChris Lattner
constraint. Reject asms where an output has multiple input constraints tied to it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57687 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-17add an assert so that PR2356 explodes instead of running off anChris Lattner
array. Improve some minor comments, refactor some helpers in AsmOperandInfo. No functionality change for valid code. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57686 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-17remove spurious space in linkGabor Greif
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57677 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-17Add comment on how tagged pointers areGabor Greif
distinguished from normal (untagged) ones as per review comment. I am sufficiently unaquainted with doxygen to defer the markup to someone with more experience. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57676 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-17Fix a very subtle spiller bug: UpdateKills should not forget to track defs ↵Evan Cheng
of aliases. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57673 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-17add some simple hacky long double support for the CBE. ThisChris Lattner
should work for intel long double, but ppc long double aborts in convert. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57672 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-17Use INT64_C to emit constant values, to avoid problems withDan Gohman
constants that don't fit in an int. This fixes "this decimal constant is unsigned only in ISO C90" warnings. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57668 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-17Fun x86 encoding tricks: when adding an immediate value of 128,Dan Gohman
use a SUB instruction instead of an ADD, because -128 can be encoded in an 8-bit signed immediate field, while +128 can't be. This avoids the need for a 32-bit immediate field in this case. A similar optimization applies to 64-bit adds with 0x80000000, with the 32-bit signed immediate field. To support this, teach tablegen how to handle 64-bit constants. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57663 91177308-0d34-0410-b5e6-96231b3b80d8
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
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