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2005-09-09When spilling a live range that is used multiple times by one instruction,Chris Lattner
only add a reload live range once for the instruction. This is one step towards fixing a regalloc pessimization that Nate notice, but is later undone by the spiller (so no code is changed). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23293 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-09Teach the code generator that rlwimi is commutable if the rotate amountChris Lattner
is zero. This lets the register allocator elide some copies in some cases. This implements CodeGen/PowerPC/rlwimi-commute.ll git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23292 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-09Added targets to speed up build of llc.Jim Laskey
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23291 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-09New testcase, neither should require a register-register copyChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23290 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-09add an accessor to provide more checkingChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23289 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-09use new accessors to simplify code. Add checking to make sure top-level instrChris Lattner
definitions are void git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23288 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-09add some accessorsChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23287 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-09Introduce two new concepts:Chris Lattner
1. Add support for defining Pattern's, which can match expressions when there is no instruction that directly implements something. Instructions usually implicitly define patterns. 2. Add support for defining SDNodeXForm's, which are node transformations. This seperates the concept of a node xform out from the existing predicate support. Using this new stuff, we add a few instruction patterns, one for testing, and two for OR/XOR by an arbitrary immediate. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23286 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-08Fix incorrect commentChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23285 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-08Implement a complete type inference system for dag patterns, based on theChris Lattner
constraints defined in the DAG node definitions in the .td files. This allows us to infer (and check!) the types for all nodes in the current ppc .td file. For example, instead of: Inst pattern EQV: (set GPRC:i32:$rT, (xor (xor GPRC:i32:$rA, GPRC:i32:$rB), (imm)<<Predicate_immAllOnes>>)) we now fully infer: Inst pattern EQV: (set:void GPRC:i32:$rT, (xor:i32 (xor:i32 GPRC:i32:$rA, GPRC:i32:$rB), (imm:i32)<<Predicate_immAllOnes>>)) from: (set GPRC:$rT, (not (xor GPRC:$rA, GPRC:$rB))) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23284 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-08whitespace/comment changes, no functionality diffsChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23283 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-08Compute the value types that are natively supported by a target.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23282 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-08Parse information about type constraints on SDNodesChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23281 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-08use node info in the one place we currently use itChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23280 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-08start parsing SDNode info recordsChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23279 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-08Move yet more folds over to the dag combiner from sd.cppNate Begeman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23278 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-08Add a bunch of stuff needed for node type inference. Move 'BLR' down withChris Lattner
the rest of the instructions, add comment markers to seperate portions of the file into logical parts git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23277 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-08Fix indentationChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23276 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-08regenerateChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23275 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-08Add support for automatically created anonymous definitions.Chris Lattner
This implements Regression/TableGen/AnonDefinitionOnDemand.td git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23274 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-08x and X should be structurally identicalChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23273 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-08new expression typeChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23272 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-08regenerateChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23271 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-08Tabs to spaces.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23270 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-08Keep names even when inlining. This allows us to realize that ADDI is:Chris Lattner
(set GPRC:i32:$rD, (add GPRC:i32:$rA, (imm)<<Predicate_immSExt16>>:$imm)) not: (set GPRC:i32:$rD, (add GPRC:i32:$rA, (imm)<<Predicate_immSExt16>>)) (we keep the ":$imm") git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23269 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-08add patterns for x?oris?Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23268 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-08add patterns to the addi/addis/mulli etc instructions. Define predicatesChris Lattner
for matching signed 16-bit and shifted 16-bit ppc immediates git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23267 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-08Add patterns for some new instructions, allowing the use of the ineg fragment.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23266 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-07add some missing PPC backend filesChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23265 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-07Add tblgen fpcmp and the nightly tester to the utils folderChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23264 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-07ignore generated filesChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23263 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-07Remove some cases handled by the generated portion of the iselChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23262 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-07Initial cut of the dag isel generator. This is still very much a work inChris Lattner
progress. It correctly parses instructions and pattern fragments and glues together pattern fragments into instructions. The only code it generates currently is some boilerplate code for things like the EntryNode. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23261 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-07Another round of dag combiner changes. This fixes some missing XOR foldsNate Begeman
as well as fixing how we replace old values with new values. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23260 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-07Fix a bug that Tzu-Chien Chiu noticed: live interval analysis does NOTChris Lattner
preserve livevar git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23259 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-07Implement a common missing fold, (add (add x, c1), c2) -> (add x, c1+c2).Nate Begeman
This restores all of stanford to being identical with and without the dag combiner with the add folding turned off in sd.cpp. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23258 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-07On non-apple systems, when using -march=ppc32, do not print:Chris Lattner
'' is not a recognized processor for this target (ignoring processor) Default to "generic" instead of "" for the default CPU. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23257 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-07Print:Chris Lattner
'' is not a recognized processor for this target (ignoring processor) instead of: is not a recognized processor for this target (ignoring processor) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23256 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-07Fix a bug nate ran into with replacealluseswith. In the recursive cse case,Chris Lattner
we were losing a node, causing an assertion to fail. Now we eagerly delete discovered CSE's, and provide an optional vector to keep track of these discovered equivalences. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23255 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-07Add a new argument to ReplaceAllUsesWith to keep track of nodes deleted byChris Lattner
this method git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23254 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-07Add an option to the DAG Combiner to enable it for beta runs, and turn onNate Begeman
that option for PowerPC's beta. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23253 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-06Rename a class. These files are being migrated to the new isel and I want toChris Lattner
reuse the names git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23252 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-06Test the new 64bit i64<->fp functionalityNate Begeman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23251 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-06Implement i64<->fp using the fctidz/fcfid instructions on PowerPC when weNate Begeman
are allowed to generate 64-bit-only PowerPC instructions for 32 bit hosts, such as the PowerPC 970. This speeds up 189.lucas from 81.99 to 32.64 seconds. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23250 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-06regenerateChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23249 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-06Tighten up the specification to allow TableGen/nested-comment.td to passChris Lattner
(fixing a bug where / in a /* */ comment would cause it to not close). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23248 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-06new testcase: tblgen should grok this.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23247 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-06Fix up the AssertXext problem, as well as adding it at callsAndrew Lenharth
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23246 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-06Add note about future optimization noted in the ppc compiler writer's guideNate Begeman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23245 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-06Add accessor for 64bit flag, so that we can tell when it is safe toNate Begeman
generate the fun in-register fp<->long instructions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23244 91177308-0d34-0410-b5e6-96231b3b80d8
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