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path: root/include/llvm/CodeGen/SelectionDAG.h
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2009-10-08Add a SelectionDAG getTargetInsertSubreg convenience function,Bob Wilson
similar to getTargetExtractSubreg. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83564 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-25Improve MachineMemOperand handling.Dan Gohman
- Allocate MachineMemOperands and MachineMemOperand lists in MachineFunctions. This eliminates MachineInstr's std::list member and allows the data to be created by isel and live for the remainder of codegen, avoiding a lot of copying and unnecessary translation. This also shrinks MemSDNode. - Delete MemOperandSDNode. Introduce MachineSDNode which has dedicated fields for MachineMemOperands. - Change MemSDNode to have a MachineMemOperand member instead of its own fields with the same information. This introduces some redundancy, but it's more consistent with what MachineInstr will eventually want. - Ignore alignment when searching for redundant loads for CSE, but remember the greatest alignment. Target-specific code which previously used MemOperandSDNodes with generic SDNodes now use MemIntrinsicSDNodes, with opcodes in a designated range so that the SelectionDAG framework knows that MachineMemOperand information is available. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82794 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-25Rename getTargetNode to getMachineNode, for consistency with theDan Gohman
naming scheme used in SelectionDAG, where there are multiple kinds of "target" nodes, but "machine" nodes are nodes which represent a MachineInstr. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82790 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-23Rename several variables from EVT to more descriptive names, now that EVTDan Gohman
is also the name of their type, as declarations like "EVT EVT" look really odd. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82654 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-15Better solution for tracking both the original alignment of the access, and ↵Nate Begeman
the current alignment based on the source value offset. This avoids increasing the size of mem nodes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81897 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-15Add an "original alignment" field to load and store nodes. This enables theNate Begeman
DAG Combiner to disambiguate chains for loads and stores of types which are broken up by the Legalizer into smaller pieces. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81813 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-03Recognize more opportunities to use SSE min and max instructions,Dan Gohman
swapping the operands if necessary. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80940 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-28Reapply 79977.Devang Patel
Use MDNodes to encode debug info in llvm IR. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80406 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-26Remove all the LLVM_COMPACTIFY_SENTINELS-related macro magic as discussed ↵Gabor Greif
with Chris on IRC. Anybody wanting to debug sentinel dereferencing problems must revert this patch and perform the indicated modifications. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80128 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-26Revert 79977. It causes llvm-gcc bootstrap failures on some platforms.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80073 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-25re-committing yesterday's r79938.Gabor Greif
This time there is no additional include of llvm/Config/config.h at all. Instead I use a hard-coded preprecessor symbol: LLVM_COMPACTIFY_SENTINELS (should this work on the self-hosting buildbot, then cleanups come next) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80035 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-25Update DebugInfo interface to use metadata, instead of special named ↵Devang Patel
llvm.dbg.... global variables, to encode debugging information in llvm IR. This is mostly a mechanical change that tests metadata support very well. This change speeds up llvm-gcc by more then 6% at "-O0 -g" (measured by compiling InstructionCombining.cpp!) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79977 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-25--- Reverse-merging r79938 into '.':Bill Wendling
U include/llvm/BasicBlock.h U include/llvm/ADT/ilist_node.h U include/llvm/ADT/ilist.h U include/llvm/CodeGen/SelectionDAG.h U include/llvm/CodeGen/MachineFunction.h U include/llvm/CodeGen/MachineBasicBlock.h U include/llvm/Function.h Revert r79938. It was causing self-hosting build failures. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79960 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-24Resubmit an earlier patch of mine:Gabor Greif
reduce the size of relevant "ghostly" sentinels by a pointer. This attempt now makes the compactification dependent on the configure variable LLVM_COMPACT_SENTINELS and should not cause any bootstrap failures for llvm-gcc any more. Please note that this is not yet the final version, and (as settled with Chris) I shall take out the autofoo/cmake portions in the next days. This will also lose the assertability on sentinel dereferencing and operator++, but that seems an acceptable price to pay for the simplified build logic. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79938 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-21Fix a comment.Bob Wilson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79643 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-19Add an x86 peep that narrows TEST instructions to forms that useDan Gohman
a smaller encoding. These kinds of patterns are very frequent in sqlite3, for example. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79439 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-11Split EVT into MVT and EVT, the former representing _just_ a primitive type, ↵Owen Anderson
while the latter is capable of representing either a primitive or an extended type. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78713 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-10Rename MVT to EVT, in preparation for splitting SimpleValueType out into its ↵Owen Anderson
own struct type. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78610 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-05Major calling convention code refactoring.Dan Gohman
Instead of awkwardly encoding calling-convention information with ISD::CALL, ISD::FORMAL_ARGUMENTS, ISD::RET, and ISD::ARG_FLAGS nodes, TargetLowering provides three virtual functions for targets to override: LowerFormalArguments, LowerCall, and LowerRet, which replace the custom lowering done on the special nodes. They provide the same information, but in a more immediately usable format. This also reworks much of the target-independent tail call logic. The decision of whether or not to perform a tail call is now cleanly split between target-independent portions, and the target dependent portion in IsEligibleForTailCallOptimization. This also synchronizes all in-tree targets, to help enable future refactoring and feature work. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78142 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-09As Chris pointed out, we don't actually need to pass the context around here.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75161 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-09Thread LLVMContext through MVT and related parts of SDISel.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75153 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-03Add NumFixedArgs attribute to CallSDNode which indicates the number of fixed ↵Tilmann Scheller
arguments in a vararg call. With the SVR4 ABI on PowerPC, vector arguments for vararg calls are passed differently depending on whether they are a fixed or a variable argument. Variable vector arguments always go into memory, fixed vector arguments are put into vector registers. If there are no free vector registers available, fixed vector arguments are put on the stack. The NumFixedArgs attribute allows to decide for an argument in a vararg call whether it belongs to the fixed or variable portion of the parameter list. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74764 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-27Remove a redundant #include.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74392 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-25add targetflags to jump tables and constant pool entries.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74204 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-25allow setting target operand flags on TargetGlobalAddress nodes.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74203 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-25start bringing targetoperand flags into isel, first up, ExternalSymbol.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74199 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-02Revert 72707 and 72709, for the moment.Dale Johannesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72712 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-01Make the implicit inputs and outputs of target-independentDale Johannesen
ADDC/ADDE use MVT::i1 (later, whatever it gets legalized to) instead of MVT::Flag. Remove CARRY_FALSE in favor of 0; adjust all target-independent code to use this format. Most targets will still produce a Flag-setting target-dependent version when selection is done. X86 is converted to use i32 instead, which means TableGen needs to produce different code in xxxGenDAGISel.inc. This keys off the new supportsHasI1 bit in xxxInstrInfo, currently set only for X86; in principle this is temporary and should go away when all other targets have been converted. All relevant X86 instruction patterns are modified to represent setting and using EFLAGS explicitly. The same can be done on other targets. The immediate behavior change is that an ADC/ADD pair are no longer tightly coupled in the X86 scheduler; they can be separated by instructions that don't clobber the flags (MOV). I will soon add some peephole optimizations based on using other instructions that set the flags to feed into ADC. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72707 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-23Add a new step to legalization to legalize vector math operations. This Eli Friedman
will allow simplifying LegalizeDAG to eliminate type legalization. (I have a patch to do that, but it's not quite finished; I'll commit it once it's finished and I've fixed any review comments for this patch.) See the comment at the beginning of lib/CodeGen/SelectionDAG/LegalizeVectorOps.cpp for more details on the motivation for this patch. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72325 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-13Indentation.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@71724 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-04Make DBG_STOPPOINT nodes, and therefore DBG_LABEL labels, get a DebugLoc, so ↵Chris Lattner
that it shows up in -print-machineinstrs. This doesn't appear to affect anything, but it was weird for some DBG_LABELs to have DebugLocs but not all of them. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70921 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-29Instead of passing in an unsigned value for the optimization level, use an enum,Bill Wendling
which better identifies what the optimization is doing. And is more flexible for future uses. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70440 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-29Implement review feedback for vector shuffle work.Nate Begeman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70372 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-29Second attempt:Bill Wendling
Massive check in. This changes the "-fast" flag to "-O#" in llc. If you want to use the old behavior, the flag is -O0. This change allows for finer-grained control over which optimizations are run at different -O levels. Most of this work was pretty mechanical. The majority of the fixes came from verifying that a "fast" variable wasn't used anymore. The JIT still uses a "Fast" flag. I'll change the JIT with a follow-up patch. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70343 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-28r70270 isn't ready yet. Back this out. Sorry for the noise.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70275 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-28Massive check in. This changes the "-fast" flag to "-O#" in llc. If you want toBill Wendling
use the old behavior, the flag is -O0. This change allows for finer-grained control over which optimizations are run at different -O levels. Most of this work was pretty mechanical. The majority of the fixes came from verifying that a "fast" variable wasn't used anymore. The JIT still uses a "Fast" flag. I'm not 100% sure if it's necessary to change it there... git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70270 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-272nd attempt, fixing SSE4.1 issues and implementing feedback from duncan.Nate Begeman
PR2957 ISD::VECTOR_SHUFFLE now stores an array of integers representing the shuffle mask internal to the node, rather than taking a BUILD_VECTOR of ConstantSDNodes as the shuffle mask. A value of -1 represents UNDEF. In addition to eliminating the creation of illegal BUILD_VECTORS just to represent shuffle masks, we are better about canonicalizing the shuffle mask, resulting in substantially better code for some classes of shuffles. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70225 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-24Revert 69952. Causes testsuite failures on linux x86-64.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69967 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-24PR2957Nate Begeman
ISD::VECTOR_SHUFFLE now stores an array of integers representing the shuffle mask internal to the node, rather than taking a BUILD_VECTOR of ConstantSDNodes as the shuffle mask. A value of -1 represents UNDEF. In addition to eliminating the creation of illegal BUILD_VECTORS just to represent shuffle masks, we are better about canonicalizing the shuffle mask, resulting in substantially better code for some classes of shuffles. A clean up of x86 shuffle code, and some canonicalizing in DAGCombiner is next. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69952 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-15Generalize one of the SelectionDAG::ReplaceAllUsesWith overloadsDan Gohman
to support replacing a node with another that has a superset of the result types. Use this instead of calling ReplaceAllUsesOfValueWith for each value. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69209 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-09Remove the obsolete SelectionDAG::getNodeValueTypes and simplifyDan Gohman
code that uses it by using SelectionDAG::getVTList instead. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68744 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-27Revert r67844. This fixes the llvm-gcc-4.2 build on Darwin.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67856 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-27Reapply r66415, which was reverted in r66426 forDuncan Sands
causing a bootstrap failure. Bootstraps here on x86-32-linux and x86-64-linux. Requested by the author Gabor Greif who says that a bug that might have been causing the failure has since been fixed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67844 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-19SADDO and UADDO are commutative.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67319 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-09Revert r66415. It's causing failures during bootstrap builds:Bill Wendling
Please submit a full bug report, with preprocessed source if appropriate. See <URL:http://developer.apple.com/bugreporter> for instructions. /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmgcc42.roots/llvmgcc42~obj/src/gcc/libgcc2.c: In function '__muldi3': /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmgcc42.roots/llvmgcc42~obj/src/gcc/libgcc2.c:567: internal compiler error: Bus error Please submit a full bug report, with preprocessed source if appropriate. See <URL:http://developer.apple.com/bugreporter> for instructions. /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmgcc42.roots/llvmgcc42~obj/src/gcc/libgcc2.c: In function '__lshrdi3': /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmgcc42.roots/llvmgcc42~obj/src/gcc/libgcc2.c:421: internal compiler error: Bus error Please submit a full bug report, with preprocessed source if appropriate. See <URL:http://developer.apple.com/bugreporter> for instructions. make[5]: *** [libgcc/./_lshrdi3.o] Error 1 make[5]: *** Waiting for unfinished jobs.... make[5]: *** [libgcc/./_muldi3.o] Error 1 make[5]: *** [libgcc/./_negdi2.o] Error 1 --- Reverse-merging (from foreign repository) r66415 into '.': U include/llvm/BasicBlock.h U include/llvm/ADT/ilist_node.h U include/llvm/CodeGen/SelectionDAG.h U include/llvm/CodeGen/MachineFunction.h U include/llvm/CodeGen/MachineBasicBlock.h U include/llvm/Function.h git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66426 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-09in builds without asserts we do not need to allocate the Next pointer in ↵Gabor Greif
"ghostly" sentinels git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66415 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-04ooops, forgot to include the pointless-write eliminator in my previous checkinGabor Greif
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66081 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-04Give sentinel traits the right to determine the policy where the sentinel is ↵Gabor Greif
kept. This should result in less indirect memory accesses, less dead writes and tighter code. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66061 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-04"Ghostify" embedded sentinels. This is a real win in all casesGabor Greif
because less bytes are allocated and subobject construction is gone. For reference how it works, see BasicBlock.h. Btw. it is very assuring to see that somebody has invented this ilist-embedded sentinel technique before me :-) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66026 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-25Revert BuildVectorSDNode related patches: 65426, 65427, and 65296.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65482 91177308-0d34-0410-b5e6-96231b3b80d8
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