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* Simplify SelectRoot's interface, and factor out some common codeDan Gohman2008-08-219-9/+9
| | | | | | | from all targets. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55124 91177308-0d34-0410-b5e6-96231b3b80d8
* Elements in DeadNodeSet are checked for use_empty() before theyDan Gohman2008-08-211-1/+0
| | | | | | | | are actually deleted, so it's not necessary to remove re-used nodes from the set. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55123 91177308-0d34-0410-b5e6-96231b3b80d8
* Clean up whitespace.Bill Wendling2008-08-211-5/+7
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55117 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert r54876 r54877 r54906 and r54907. Evan found that these caused a 20%Nick Lewycky2008-08-211-68/+22
| | | | | | | slowdown in bzip2. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55113 91177308-0d34-0410-b5e6-96231b3b80d8
* unbreak the CBE on treeadd an many others.Chris Lattner2008-08-211-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55112 91177308-0d34-0410-b5e6-96231b3b80d8
* recommit bcreader, handling packed structs correctly. ApparentlyChris Lattner2008-08-212-13/+133
| | | | | | | people want fast *and* correct. Sheesh. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55102 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert 55090, regressions in:Daniel Dunbar2008-08-212-132/+13
| | | | | | | | | - Postgres - llvm-test/SingleSource/UnitTests/{2006-01-23-InitializedBitField, 2004-11-28-GlobalBoolLayout, 2003-05-02-DependentPHI} git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55100 91177308-0d34-0410-b5e6-96231b3b80d8
* Basic fast-isel support for instructions with constant int operands.Dan Gohman2008-08-211-19/+69
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55099 91177308-0d34-0410-b5e6-96231b3b80d8
* Type of first GEP operand is always the same as the target pointer type.Evan Cheng2008-08-211-7/+5
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55097 91177308-0d34-0410-b5e6-96231b3b80d8
* Use raw_ostream throughout the AsmPrinter.Owen Anderson2008-08-2155-150/+353
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55092 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix an N^2 issue handling constant resolution due to RAUW in large arraysChris Lattner2008-08-212-13/+132
| | | | | | | | | this speeds up the bcreader from 6.67s to 0.12s on a testcase Daniel provided. rdar://6158117 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55090 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix unused variable warnings.Dan Gohman2008-08-201-3/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55089 91177308-0d34-0410-b5e6-96231b3b80d8
* Silence a compiler warning.Evan Cheng2008-08-201-1/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55087 91177308-0d34-0410-b5e6-96231b3b80d8
* First cut, un-optimized (and untested) fast isel lowering of GetElementPtrInst.Evan Cheng2008-08-202-5/+109
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55085 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a new ConstantExpr::getWithOperands that takes any array of operands Chris Lattner2008-08-201-4/+4
| | | | | | | | | instead of requiring an std::vector. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55084 91177308-0d34-0410-b5e6-96231b3b80d8
* Move the handling of ANY_EXTEND, SIGN_EXTEND_INREG, and TRUNCATEDan Gohman2008-08-203-138/+159
| | | | | | | | | | | | | | out of X86ISelDAGToDAG.cpp C++ code and into tablegen code. Among other things, using tablegen for these things makes them friendlier to FastISel. Tablegen can handle the case of i8 subregs on x86-32, but currently the C++ code for that case uses MVT::Flag in a tricky way, and it happens to schedule better in some cases. So for now, leave the C++ code in place to handle the i8 case on x86-32. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55078 91177308-0d34-0410-b5e6-96231b3b80d8
* Simplify the BuildMI calls even more.Dan Gohman2008-08-201-6/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55077 91177308-0d34-0410-b5e6-96231b3b80d8
* Simplify FastISel's constructor argument list, make the FastISelDan Gohman2008-08-205-25/+22
| | | | | | | | | class hold a MachineRegisterInfo member, and make the MachineBasicBlock be passed in to SelectInstructions rather than the FastISel constructor. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55076 91177308-0d34-0410-b5e6-96231b3b80d8
* Dump the instruction that foiled ISel even when -debug is not used.Dan Gohman2008-08-201-1/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55075 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't hoist instructions that define a physical register.Bill Wendling2008-08-201-1/+8
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55074 91177308-0d34-0410-b5e6-96231b3b80d8
* Make more use of the BuildMI API.Dan Gohman2008-08-201-8/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55072 91177308-0d34-0410-b5e6-96231b3b80d8
* Minor code reorganization.Dan Gohman2008-08-201-3/+3
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55071 91177308-0d34-0410-b5e6-96231b3b80d8
* Minor whitespace cleanup.Dan Gohman2008-08-201-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55070 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix 80 column violation.Dan Gohman2008-08-201-1/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55069 91177308-0d34-0410-b5e6-96231b3b80d8
* Kill off SimpleBBISel, it's replaced by FastISel.Evan Cheng2008-08-203-78/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55067 91177308-0d34-0410-b5e6-96231b3b80d8
* Move the fast-path (<=i64) cases of various APInt methods inlineChris Lattner2008-08-201-150/+40
| | | | | | | | and the slow-path cases out of line. This speeds up instcombine a bit in real world cases. Patch contributed by m-s. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55063 91177308-0d34-0410-b5e6-96231b3b80d8
* Disable DAGCombine's alignment inference in "fast" codegen mode.Dan Gohman2008-08-202-9/+12
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55059 91177308-0d34-0410-b5e6-96231b3b80d8
* Change the FoldingSetNodeID usage for objects which carryDan Gohman2008-08-202-36/+36
| | | | | | | | | alignment and volatility information, such as loads and stores, to reduce the number of integer values added to the FoldingSetNodeID. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55058 91177308-0d34-0410-b5e6-96231b3b80d8
* Clean up a dead return missed in r55055.Dan Gohman2008-08-201-3/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55057 91177308-0d34-0410-b5e6-96231b3b80d8
* Tablegen generated code already tests the opcode value, so it's notDan Gohman2008-08-204-247/+183
| | | | | | | necessary to use dyn_cast in these predicates. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55055 91177308-0d34-0410-b5e6-96231b3b80d8
* Use BitVector instead of std::vector<unsigned char>.Dan Gohman2008-08-201-2/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55054 91177308-0d34-0410-b5e6-96231b3b80d8
* It's not necessary to check if a value is null before delete[].Dan Gohman2008-08-201-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55053 91177308-0d34-0410-b5e6-96231b3b80d8
* Use cast instead of dyn_cast.Dan Gohman2008-08-201-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55052 91177308-0d34-0410-b5e6-96231b3b80d8
* Avoid an empty-if-body warning in release builds.Dan Gohman2008-08-201-1/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55050 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix indentation.Dan Gohman2008-08-201-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55049 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix comment spacing.Dan Gohman2008-08-201-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55047 91177308-0d34-0410-b5e6-96231b3b80d8
* Fixed shuffle optimizations to handle non power of 2 vectorsMon P Wang2008-08-201-4/+4
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55035 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix FastISel to recognize that the last block in the function doesDan Gohman2008-08-201-5/+8
| | | | | | | not have a fall-through successor. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55033 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a leak in the FastISel code that Chris pointed out.Dan Gohman2008-08-201-0/+8
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55031 91177308-0d34-0410-b5e6-96231b3b80d8
* Add remaining 64-bit atomic patterns for x86-64.Dale Johannesen2008-08-202-0/+60
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55029 91177308-0d34-0410-b5e6-96231b3b80d8
* Add support for running SelectionDAG if FastISel fails. This is underDan Gohman2008-08-201-11/+16
| | | | | | | | a command-line option, so that the default behavior is an abort, which is useful for exposing code that isn't supported yet. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55028 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix FastISel to recognize unhandled operands, such as constantsDan Gohman2008-08-201-0/+4
| | | | | | | that aren't available as virtual registers (for now). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55026 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert r55018 and apply the correct "fix" for the 64-bit sub_and_fetch atomic.Bill Wendling2008-08-204-51/+5
| | | | | | | Just expand it like the other X-bit sub_and_fetches. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55023 91177308-0d34-0410-b5e6-96231b3b80d8
* Get rid of a couple of dynamic_cast.Evan Cheng2008-08-201-4/+10
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55022 91177308-0d34-0410-b5e6-96231b3b80d8
* Add FastISel support for floating-point operations.Dan Gohman2008-08-201-6/+13
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55021 91177308-0d34-0410-b5e6-96231b3b80d8
* Add FastISel support for several more binary operators.Dan Gohman2008-08-201-16/+62
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55020 91177308-0d34-0410-b5e6-96231b3b80d8
* Add support for the __sync_sub_and_fetch atomics and friends for X86. The codeBill Wendling2008-08-193-6/+54
| | | | | | | | was already present, but not hooked up to anything. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55018 91177308-0d34-0410-b5e6-96231b3b80d8
* Add code to call FastISel, and a command-line option to enable it.Dan Gohman2008-08-191-1/+32
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55015 91177308-0d34-0410-b5e6-96231b3b80d8
* Support unconditional fall-through branches in FastISel.Dan Gohman2008-08-191-0/+16
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55014 91177308-0d34-0410-b5e6-96231b3b80d8
* Allow the fast-path spilling code to attempt folding, but still leaving out ↵Owen Anderson2008-08-191-59/+68
| | | | | | remat and splitting. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55012 91177308-0d34-0410-b5e6-96231b3b80d8
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