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2008-07-28Add x86 isel patterns to match what would be a ZERO_EXTEND_INREG operation,Dan Gohman
which is represented in codegen as an 'and' operation. This matches them with movz instructions, instead of leaving them to be matched by and instructions with an immediate field. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54147 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-28Fold the useful features of alist and alist_node into ilist, andDan Gohman
a new ilist_node class, and remove them. Unlike alist_node, ilist_node doesn't attempt to manage storage itself, so it avoids the associated problems, including being opaque in gdb. Adjust the Recycler class so that it doesn't depend on alist_node. Also, change it to use explicit Size and Align parameters, allowing it to work when the largest-sized node doesn't have the greatest alignment requirement. Change MachineInstr's MachineMemOperand list from a pool-backed alist to a std::list for now. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54146 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-28Don't remove volatile loads. Thanks to Duncan for noticing this one.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54144 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-28Disable gp_rel relocation for constant pools access for now.Bruno Cardoso Lopes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54142 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-28Since build_vector is a variadic node, the numberDuncan Sands
of operands should be -1 not 0. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54141 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-28Added floating point lowering for setcc and brcond.Bruno Cardoso Lopes
Fixed COMM asm directive usage. ConstantPool using custom FourByteConstantSection. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54139 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-28Fix a typo in a comment.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54136 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-28Add support for eliminating stores that store the same value that was just ↵Owen Anderson
loaded. This fixes PR2599. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54133 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-28Fix a subtle bug when removing instructions from memdep. In very specific Owen Anderson
circumstances we could end up remapping a dependee to the same instruction that we're trying to remove. Handle this properly by just falling back to a conservative solution. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54132 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-27Remove <iostream> include.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54131 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-27Make the ScheduleDAG's GraphRoot edge be blue and dashed too, likeDan Gohman
the SelectionDAG's. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54129 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-27Rename SDOperand to SDValue.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54128 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-27Tidy SDNode::use_iterator, and complete the transition to have itDan Gohman
parallel its analogue, Value::value_use_iterator. The operator* method now returns the user, rather than the use. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54127 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-27Rename isOnlyUseOf to isOnlyUserOf.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54124 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-27Some binary operations were being treated asDuncan Sands
unary operations! Add support for softening some additional unary operations like fp_to_sint. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54122 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-25Fix the issues originally addressed in r54070. After thinking about it some ↵Owen Anderson
more, I realized that the right thing to do is to have StrongPHIElimination use its knowledge of the PHIs before they're erased to update the intervals appropriate. This is both simpler and more accurate than the alternative, which was having LIA figure it out when it renumbered things, plus it's just the right thing to do! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54077 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-25Revert my previous patch. In retrospect, this is completely the wrong way ↵Owen Anderson
to fix this problem. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54072 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-25Special cases are needed in renumbering when dealing with renumbering after ↵Owen Anderson
a PHI has been removed. The interval previously defined by the PHI needs to be extended to the beginning of its basic block, and the intervals that were inputs need to be trimmed to the end of their basic blocks. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54070 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-25In order to avoid reprocessing a register more than once, we need to add itOwen Anderson
to the handled set so it will get filtered out in future iterations. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54065 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-25Remove live interval entries for an interval if we're eliminating its only VN.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54062 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-25Properly remap live ranges whose end indices are the end of the function.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54061 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-25Make the remapping of interval indices (particularly ending indices) more ↵Owen Anderson
robust. This is tricky business, and will probably take a few more iterations to get the last kinks out of it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54043 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-25Disable mov{L, LP, HP, HLP, *DUP} shuffles for mmxNate Begeman
mmx needs its own fancy shuffle logic based on unpack; for now we get correct but awful code. Also commit Mon Ping's VSETCC patch git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54039 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-25Remove unnecessary implicit argumentNate Begeman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54031 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-25Fix minor issues with VICmp/VFCmp constant expressionsNate Begeman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54030 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-25Fit in 80 colsNate Begeman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54029 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-25Allow verifier to be run on partially materialized modules.Nate Begeman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54028 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-25Remove dead PatLeaf; there are a number of issues around MMX movl that need ↵Nate Begeman
to be fixed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54026 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-25Tab removalNate Begeman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54025 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-25Disable the new aggressive remat logic introduced in 54000; it causes someDan Gohman
regressions, such as PR2595. Also, there is a significant code-quality issue in SPEC 464.h264ref and a few others. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54014 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-25When splitting a vector shuffle, fixed which type we used for the hi partMon P Wang
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54007 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-25Teach ARM isLegalAddressingMode to handle unknown type without crashing. ↵Evan Cheng
This fixes pr2589. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54004 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-25Use AliasAnalysis::pointsToConstantMemory in SDISel to avoid unnecessaryDan Gohman
dependencies with constant load nodes. This allows them to be scheduled freely. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54001 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-25Enable rematerialization of constants using ↵Dan Gohman
AliasAnalysis::pointsToConstantMemory, and knowledge of PseudoSourceValues. This unfortunately isn't sufficient to allow constants to be rematerialized in PIC mode -- the extra indirection is a complication. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54000 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-24Put the LICM of constant GlobalVariables, introduced in r53945, under aDan Gohman
command-line option, and disable it by default. It introduced performance regressions because CodeGen is currently not able to remat such loads. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53997 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-24Avoid emitting casts in static initializer contexts. This fixesDan Gohman
large numbers of CBE regressions caused by r53958. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53990 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-24Store the predecessor MBB in the PHIUnion, rather than an index, since the ↵Owen Anderson
indices will change after renumbering. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53985 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-24Fix a catastrophic PPC64 ABI bug: i32 operands which are passed in memory ↵Evan Cheng
(all of the parameter registers are used) are loaded from sp offsets that were off by 4. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53979 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-24Create temp. file in current path.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53973 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-24Rename instance variables, parameter argument names to eliminate a bunch of ↵Evan Cheng
compilation warnings with -Wshadow. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53970 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-23Enable the insertion of empty indices into LiveInterals, thereby making ↵Owen Anderson
renumbering possible. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53961 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-23Fix a compile-time regression introduced by my heuristic-changing patch. I ↵Owen Anderson
forgot to multiply the instruction count by a constant factor in a few places, which caused the register allocator to require many more iterations. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53959 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-23Use C99 aggregate literal syntax for first-class struct and array values.Dan Gohman
This fixes several recent CBE regressions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53958 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-23Minor fixes.Bruno Cardoso Lopes
Added ConstantPool support. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53951 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-23"Allow LICM to sink or lift loads from constant memory. Also add a testChris Lattner
case for this. This allows instructions like loads from global variables declared to be constant to be moved out of loops." Patch by Stefanus Du Toit! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53945 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-23Update the generated .cvs files.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53943 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-23Enable first-class aggregates support.Dan Gohman
Remove the GetResultInst instruction. It is still accepted in LLVM assembly and bitcode, where it is now auto-upgraded to ExtractValueInst. Also, remove support for return instructions with multiple values. These are auto-upgraded to use InsertValueInst instructions. The IRBuilder still accepts multiple-value returns, and auto-upgrades them to InsertValueInst instructions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53941 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-23Fix PR2485: do all 4-element SSE shuffles in max. of 2 shuffle instructions.Evan Cheng
Based on patch by Nicolas Capens. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53939 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-22LegalizeTypes support for VSETCC. Fixes PR2575.Duncan Sands
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53938 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-22Change the heuristics used in the coalescer, register allocator, and withinOwen Anderson
live intervals itself to use an instruction count approximation that is not affected by inserting empty indices. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53937 91177308-0d34-0410-b5e6-96231b3b80d8
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