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2008-02-27LegalizeTypes support for legalizing the maskDuncan Sands
operand of a VECTOR_SHUFFLE. The mask is a vector of constant integers. The code in LegalizeDAG doesn't bother to legalize the mask, since it's basically just storage for a bunch of constants, however LegalizeTypes is more picky. The problem is that there may not exist any legal vector-of-integers type with a legal element type, so it is impossible to create a legal mask! Unless of course you cheat by creating a BUILD_VECTOR where the operands have a different type to the element type of the vector being built... This is pretty ugly but works - all relevant tests in the testsuite pass, and produce the same assembler with and without LegalizeTypes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47670 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-27LegalizeTypes support for INSERT_VECTOR_ELT.Duncan Sands
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47669 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-27Support for legalizing MEMBARRIER.Duncan Sands
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47667 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-27Final de-tabification.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47663 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-27Teach Legalize how to expand an EXTRACT_ELEMENT.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47656 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-27Convert the last remaining users of the non-APInt form ofDan Gohman
ComputeMaskedBits to use the APInt form, and remove the non-APInt form. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47654 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-27Convert SimplifyDemandedMask and ShrinkDemandedConstant to use APInt.Dan Gohman
Change several cases in SimplifyDemandedMask that don't ever do any simplifying to reuse the logic in ComputeMaskedBits instead of duplicating it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47648 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-26Rename PrintableName to Name.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47629 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-26Change "Name" to "AsmName" in the target register info. Gee, a refactoring toolBill Wendling
would have been a Godsend here! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47625 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-26Avoid aborting on invalid shift counts.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47612 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-26Fix PR2096, a regression introduced with my patch last night. ThisChris Lattner
also fixes cfrac, flops, and 175.vpr git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47605 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-26Fix a nasty bug in LegalizeTypes (spotted inDuncan Sands
CodeGen/PowerPC/illegal-element-type.ll): suppose a node X is processed, and processing maps it to a node Y. Then X continues to exist in the DAG, but with no users. While processing some other node, a new node may be created that happens to be equal to X, and thus X will be reused rather than a truly new node. This can cause X to "magically reappear", and since it is in the Processed state in will not be reprocessed, so at the end of type legalization the illegal node X can still be present. The solution is to replace X with Y whenever X gets resurrected like this. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47601 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-26Fix isNegatibleForFree to not return true for ConstantFP nodes Chris Lattner
after legalize. Just because a constant is legal (e.g. 0.0 in SSE) doesn't mean that its negated value is legal (-0.0). We could make this stronger by checking to see if the negated constant is actually legal post negation, but it doesn't seem like a big deal. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47591 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-26Refactor inline asm constraint matching code out of SDIsel into TargetLowering.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47587 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-25Make some static variables const.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47566 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-25Convert MaskedValueIsZero and all its users to use APInt. Also addDan Gohman
a SignBitIsZero function to simplify a common use case. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47561 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-25In debug builds check that the key property holds: allDuncan Sands
result and operand types are legal. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47546 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-24Add support to LegalizeTypes for building legal vectorsDuncan Sands
out of illegal elements (BUILD_VECTOR). Uses and beefs up BUILD_PAIR, though it didn't really have to. Like most of LegalizeTypes, does not support soft-float. This cures all "make check" vector building failures. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47537 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-22Pass alignment on ByVal parameters, from FE, allDale Johannesen
the way through. It is now used for codegen. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47484 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-22Fix a regression in 403.gcc and 186.crafty introduced in 47383. To testDan Gohman
that a value is >= 32, check that all of the high bits are zero, not just one or more. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47467 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-21Make the clobber analysis a bit more smart: we only are careful about Chris Lattner
early clobbers if the clobber list contains a *register* not some thing like {memory}, {dirflag} etc. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47457 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-21Treat clobber operands like early clobbers: if we haveChris Lattner
any, we force sdisel to do all regalloc for an asm. This leads to gross but correct codegen. This fixes the rest of PR2078. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47454 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-21Better names as per Evan's requestAndrew Lenharth
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47435 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-21Atomic op support. If any gcc test uses __sync builtins, it might start ↵Andrew Lenharth
failing on archs that haven't implemented them yet git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47430 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-21Add support for matching mem operands. This fixes PR1133, patch byChris Lattner
Eli Friedman. This implements CodeGen/Generic/2008-02-20-MatchingMem.ll. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47428 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-21Fix a (harmless) but where vregs were added to the used reg lists for Chris Lattner
inline asms. Fix PR2078 by marking aliases of registers used when a register is marked used. This prevents EAX from being allocated when AX is listed in the clobber set for the asm. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47426 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-20assert is more effective reminder then FIXME tag for unimplemented features.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47388 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-20LegalizeTypes support for scalarizing a vector storeDuncan Sands
and splitting extract_subvector. This fixes nine "make check" testcases, for example 2008-02-04-ExtractSubvector.ll and (partially) CodeGen/Generic/vector.ll. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47384 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-20Convert Legalize to use the APInt form of ComputeMaskedBits.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47383 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-20Add explicit keywords.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47382 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-20Convert DAGCombiner to use the APInt form of ComputeMaskedBits.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47381 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-20Use APInt::intersects.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47380 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-20Update gcc 4.3 warnings fix patch with recent head changesAnton Korobeynikov
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47368 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-20Fix an incredibly subtle bug exposed by Ted's change to APInt profiling.Chris Lattner
AddNodeIDNode does profiling for a ConstantSDNode, but so does SelectionDAG::getConstant. This profiling should be moved to a common static function in ConstantSDNode. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47359 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-19Add GetResultInst. First step for multiple return value support.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47348 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-18- When DAG combiner is folding a bit convert into a BUILD_VECTOR, it should ↵Evan Cheng
check if it's essentially a SCALAR_TO_VECTOR. Avoid turning (v8i16) <10, u, u, u> to <10, 0, u, u, u, u, u, u>. Instead, simply convert it to a SCALAR_TO_VECTOR of the proper type. - X86 now normalize SCALAR_TO_VECTOR to (BIT_CONVERT (v4i32 SCALAR_TO_VECTOR)). Get rid of X86ISD::S2VEC. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47290 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-16I cannot find a libgcc function for this builtin. Therefor expanding it to ↵Andrew Lenharth
a noop (which is how it use to be treated). If someone who knows the x86 backend better than me could tell me how to get a lock prefix on an instruction, that would be nice to complete x86 support. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47213 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-16Teach LegalizeTypes how to expand the operands ofDuncan Sands
br_cc. This fixes 5 "make check" failures. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47212 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-16llvm.memory.barrier, and impl for x86 and alphaAndrew Lenharth
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47204 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-16Rename CountMemOperands to ComputeMemOperandsEnd to reflect whatDan Gohman
it actually does. Simplify CountOperands a little by reusing ComputeMemOperandsEnd. And reword some comments for both. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47198 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-16Revert 47177, which was incorrect.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47196 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-15Make tblgen a little smarter about constants smaller than i32. Currently,Scott Michel
tblgen will complain if a sign-extended constant does not fit into a data type smaller than i32, e.g., i16. This causes a problem when certain hex constants are used, such as 0xff for byte masks or immediate xor values. tblgen will try the sign-extended value first and, if the sign extended value would overflow, it tries to see if the unsigned value will fit. Consequently, a software developer can now safely incant: (XORHIr16 R16C:$rA, 0xffff) which is somewhat clearer and more informative than incanting: (XORHIr16 R16C:$rA, (i16 -1)) even if the two are bitwise equivalent. Tblgen also outputs the 64-bit unsigned constant in the generated ISel code when getTargetConstant() is invoked. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47188 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-15Skip over the defs and start at the uses when looking for operandsDan Gohman
with the TIED_TO attribute. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47177 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-15Use the TargetInstrDescr to determine the number of operandsDan Gohman
that should be checked for the TIED_TO attribute instead of using CountOperands. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47176 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-15Teach LegalizeTypes how to promote the flagsDuncan Sands
in a ret node. These are created as i32 constants but on some platforms i32 is not legal. This fixes 26 "make check" failures, for example Alpha/2005-07-12-TwoMallocCalls.ll. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47172 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-15Use StoreSDNode::getValue instead of calling getOperand directlyDan Gohman
with a hard-coded operand number. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47163 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-14Fix a miscompilation from Dan's recent apintification.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47128 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-14In TargetLowering::LowerCallTo, don't assert thatDuncan Sands
the return value is zero-extended if it isn't sign-extended. It may also be any-extended. Also, if a floating point value was returned in a larger floating point type, pass 1 as the second operand to FP_ROUND, which tells it that all the precision is in the original type. I think this is right but I could be wrong. Finally, when doing libcalls, set isZExt on a parameter if it is "unsigned". Currently isSExt is set when signed, and nothing is set otherwise. This should be right for all calls to standard library routines. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47122 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-14Change how FP immediates are handled. Nate Begeman
1) ConstantFP is now expand by default 2) ConstantFP is not turned into TargetConstantFP during Legalize if it is legal. This allows ConstantFP to be handled like Constant, allowing for targets that can encode FP immediates as MachineOperands. As a bonus, fix up Itanium FP constants, which now correctly match, and match more constants! Hooray. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47121 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-13Allow the APInt form of ComputeMaskedBits to operate on i128 types.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47101 91177308-0d34-0410-b5e6-96231b3b80d8
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