- Oct 03, 2008
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Dan Gohman authored
Instead, just create one, and make sure everything that needs it can access it. Previously most of the SelectionDAGISel subclasses all had their own TargetLowering object, which was redundant with the TargetLowering object in the TargetMachine subclasses, except on Sparc, where SparcTargetMachine didn't have a TargetLowering object. Change Sparc to work more like the other targets here. llvm-svn: 57016
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Dan Gohman authored
isReg, etc., from isRegister, etc. llvm-svn: 57006
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- Sep 29, 2008
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Duncan Sands authored
instead of hasWeakLinkage in a bunch of optimization passes. llvm-svn: 56782
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- Sep 26, 2008
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Oscar Fuentes authored
llvm-svn: 56641
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- Sep 25, 2008
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Anton Korobeynikov authored
llvm-svn: 56573
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Anton Korobeynikov authored
llvm-svn: 56572
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- Sep 23, 2008
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Dan Gohman authored
instruction opcodes are now numbered. No functionality change. llvm-svn: 56497
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- Sep 22, 2008
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Dale Johannesen authored
default. llvm-svn: 56471
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- Sep 16, 2008
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Bill Wendling authored
Apologies for the thrashing. llvm-svn: 56251
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Bill Wendling authored
- Add linkage to SymbolSDNode (default to external). - Change ISD::ExternalSymbol to ISD::Symbol. - Change ISD::TargetExternalSymbol to ISD::TargetSymbol These changes pave the way to allowing SymbolSDNodes with non-external linkage. llvm-svn: 56249
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- Sep 13, 2008
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Dan Gohman authored
isImmediate(), isRegister(), and friends, to avoid confusion about having two different names with the same meaning. I'm not attached to the longer names, and would be ok with changing to the shorter names if others prefer it. llvm-svn: 56189
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Dan Gohman authored
Currently it just holds the calling convention and flags for isVarArgs and isTailCall. And it has several utility methods, which eliminate magic 5+2*i and similar index computations in several places. CallSDNodes are not CSE'd. Teach UpdateNodeOperands to handle nodes that are not CSE'd gracefully. llvm-svn: 56183
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- Sep 12, 2008
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Dan Gohman authored
with ConstantInt. This led to fixing a bug in TargetLowering.cpp using getValue instead of getAPIntValue. llvm-svn: 56159
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- Sep 04, 2008
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Dan Gohman authored
llvm-svn: 55779
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Dale Johannesen authored
No functional change (and no FE change to generate them). llvm-svn: 55753
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- Aug 28, 2008
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Gabor Greif authored
llvm-svn: 55504
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- Aug 26, 2008
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Owen Anderson authored
was inserted or not. This allows bitcast in fast isel to properly handle the case where an appropriate reg-to-reg copy is not available. llvm-svn: 55375
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- Aug 23, 2008
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Dan Gohman authored
process up to a higher level. This allows FastISel to leverage more of SelectionDAGISel's infastructure, such as updating Machine PHI nodes. Also, implement transitioning from SDISel back to FastISel in the middle of a block, so it's now possible to go back and forth. This allows FastISel to hand individual CallInsts and other complicated things off to SDISel to handle, while handling the rest of the block itself. To help support this, reorganize the SelectionDAG class so that it is allocated once and reused throughout a function, instead of being completely reallocated for each block. llvm-svn: 55219
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- Aug 21, 2008
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Dan Gohman authored
from all targets. llvm-svn: 55124
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Owen Anderson authored
llvm-svn: 55092
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- Aug 16, 2008
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Anton Korobeynikov authored
llvm-svn: 54844
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Anton Korobeynikov authored
Reduce heap trashing due to std::string construction / concatenation via caching of section flags string representations llvm-svn: 54842
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- Aug 15, 2008
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Owen Anderson authored
Convert uses of std::vector in TargetInstrInfo to SmallVector. This change had to be propoagated down into all the targets and up into all clients of this API. llvm-svn: 54802
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- Aug 08, 2008
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Anton Korobeynikov authored
llvm-svn: 54543
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Anton Korobeynikov authored
llvm-svn: 54541
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Anton Korobeynikov authored
llvm-svn: 54540
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- Aug 07, 2008
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Anton Korobeynikov authored
llvm-svn: 54456
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Anton Korobeynikov authored
llvm-svn: 54455
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Anton Korobeynikov authored
llvm-svn: 54450
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- Aug 03, 2008
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Chris Lattner authored
llvm-svn: 54313
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- Jul 27, 2008
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Dan Gohman authored
llvm-svn: 54128
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- Jul 17, 2008
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Dan Gohman authored
replacement of multiple values. This is slightly more efficient than doing multiple ReplaceAllUsesOfValueWith calls, and theoretically could be optimized even further. However, an important property of this new function is that it handles the case where the source value set and destination value set overlap. This makes it feasible for isel to use SelectNodeTo in many very common cases, which is advantageous because SelectNodeTo avoids a temporary node and it doesn't require CSEMap updates for users of values that don't change position. Revamp MorphNodeTo, which is what does all the work of SelectNodeTo, to handle operand lists more efficiently, and to correctly handle a number of corner cases to which its new wider use exposes it. This commit also includes a change to the encoding of post-isel opcodes in SDNodes; now instead of being sandwiched between the target-independent pre-isel opcodes and the target-dependent pre-isel opcodes, post-isel opcodes are now represented as negative values. This makes it possible to test if an opcode is pre-isel or post-isel without having to know the size of the current target's post-isel instruction set. These changes speed up llc overall by 3% and reduce memory usage by 10% on the InstructionCombining.cpp testcase with -fast and -regalloc=local. llvm-svn: 53728
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- Jul 10, 2008
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Owen Anderson authored
llvm-svn: 53388
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- Jul 08, 2008
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Dan Gohman authored
MachineMemOperands. The pools are owned by MachineFunctions. This drastically reduces the number of calls to malloc/free made during the "Emit" phase of scheduling, as well as later phases in CodeGen. Combined with other changes, this speeds up the "instruction selection" phase of CodeGen by 10% in some cases. llvm-svn: 53212
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- Jul 07, 2008
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Dan Gohman authored
llvm-svn: 53179
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- Jul 03, 2008
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Evan Cheng authored
- Remove calls to copyKillDeadInfo which is an N^2 function. Instead, propagate kill / dead markers as new instructions are constructed in foldMemoryOperand, convertToThressAddress, etc. - Also remove LiveVariables::instructionChanged, etc. Replace all calls with cheaper calls which update VarInfo kill list. llvm-svn: 53097
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- Jul 02, 2008
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Duncan Sands authored
to be passed the list of value types, and use this where appropriate. Inappropriate places are where the value type list is already known and may be long, in which case the existing method is more efficient. llvm-svn: 53035
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- Jul 01, 2008
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Dan Gohman authored
the need for a flavor operand, and add a new SDNode subclass, LabelSDNode, for use with them to eliminate the need for a label id operand. Change instruction selection to let these label nodes through unmodified instead of creating copies of them. Teach the MachineInstr emitter how to emit a MachineInstr directly from an ISD label node. This avoids the need for allocating SDNodes for the label id and flavor value, as well as SDNodes for each of the post-isel label, label id, and label flavor. llvm-svn: 52943
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- Jun 30, 2008
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Dan Gohman authored
purpose, and give it a custom SDNode subclass so that it doesn't need to have line number, column number, filename string, and directory string, all existing as individual SDNodes to be the operands. This was the only user of ISD::STRING, StringSDNode, etc., so remove those and some associated code. This makes stop-points considerably easier to read in -view-legalize-dags output, and reduces overhead (creating new nodes and copying std::strings into them) on code containing debugging information. llvm-svn: 52924
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Evan Cheng authored
llvm-svn: 52923
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