Commit Graph

5419 Commits

Author SHA1 Message Date
Jeff Cohen bef777f506 Make enum-valued bitfield large enough to avoid interpretation as negative values in VC++.
llvm-svn: 36304
2007-04-21 16:29:37 +00:00
Jeff Cohen fa12f9d64a Fix breakage of bytecode reader when built with VC++.
llvm-svn: 36303
2007-04-21 15:29:13 +00:00
Jeff Cohen a30107fb03 The expression "SubclassData = (SubclassData & ~1) | (V) ? 1 : 0;" does not do what
was intended!  | has higher precedence than ?.  Caught by Visual Studio.

llvm-svn: 36302
2007-04-21 14:32:59 +00:00
Christopher Lamb bff50208c8 add support for alignment attributes on load/store instructions
llvm-svn: 36301
2007-04-21 08:16:25 +00:00
Owen Anderson 94e1d9aa39 Fix some null checks to actually test the part that needs checking.
llvm-svn: 36298
2007-04-21 07:04:45 +00:00
Evan Cheng 951ed1bdd2 Add super-register set.
llvm-svn: 36295
2007-04-21 00:54:06 +00:00
Chris Lattner d9d3a4bbd6 Fix a problem where primitive types lose their name after llvm_shutdown is called.
This also reduces the amount of work done at static construction time.

llvm-svn: 36285
2007-04-20 22:33:47 +00:00
Lauro Ramos Venancio 2518889872 Implement "general dynamic", "initial exec" and "local exec" TLS models for
X86 32 bits.

llvm-svn: 36283
2007-04-20 21:38:10 +00:00
Evan Cheng 3bf93733b9 Add sub-registers set accessor.
llvm-svn: 36282
2007-04-20 21:28:05 +00:00
Evan Cheng da2bf2ce0a Add sub-register sets.
llvm-svn: 36277
2007-04-20 21:11:22 +00:00
Owen Anderson 2da606c757 Move more passes to using ETForest instead of DominatorTree.
llvm-svn: 36271
2007-04-20 06:27:13 +00:00
Owen Anderson 7a5136d8c5 Add null checks and const-ify these accessors.
llvm-svn: 36270
2007-04-20 05:44:16 +00:00
Chris Lattner bc43e8d0b3 Fix a very strange assertion message, patch by Christopher Lamb
CVS: ----------------------------------------------------------------------

llvm-svn: 36267
2007-04-20 03:27:36 +00:00
Jeff Cohen 8cd3f3d7b4 Fix some VC++ warnings.
llvm-svn: 36259
2007-04-19 02:04:09 +00:00
Owen Anderson 9749c4744e Add accessor to get the blocks immediately dominated by a given block to ETForest.
llvm-svn: 36251
2007-04-18 05:25:09 +00:00
Evan Cheng 4c53d321aa VarInfo::UsedBlocks is no longer used. Remove.
llvm-svn: 36250
2007-04-18 05:04:38 +00:00
Owen Anderson fae86bcbaa Add an accessor to make ETForest more useful.
llvm-svn: 36246
2007-04-18 04:38:39 +00:00
Evan Cheng b408e8f11d Don't populate TryAgainList when coalescing only physical registers with virtual registers.
llvm-svn: 36240
2007-04-18 02:30:19 +00:00
Chris Lattner 0d7265650d what's an & between friends?
llvm-svn: 36234
2007-04-18 00:43:05 +00:00
Evan Cheng b881bdabd9 Copy coalescing change to prevent a physical register from being pin to a
long live interval that has low usage density.
1. Change order of coalescing to join physical registers with virtual
   registers first before virtual register intervals become too long.
2. Check size and usage density to determine if it's worthwhile to join.
3. If joining is aborted, assign virtual register live interval allocation
   preference field to the physical register.
4. Register allocator should try to allocate to the preferred register
   first (if available) to create identify moves that can be eliminated.

llvm-svn: 36218
2007-04-17 20:32:26 +00:00
Evan Cheng 57b5214d59 Add a register allocation preference field; add a method to compute size of a live interval.
llvm-svn: 36216
2007-04-17 20:25:11 +00:00
Evan Cheng 2f45bf31c5 Change getAllocatableSet() so it returns allocatable registers for a specific register class.
llvm-svn: 36215
2007-04-17 20:23:34 +00:00
Evan Cheng 8387cf1100 Keep track of number of uses within the function per virtual register.
llvm-svn: 36214
2007-04-17 20:22:11 +00:00
Chris Lattner 51109b7830 Commit an patch from Gabor Greif in Mar 2005. This eliminates the tail
pointer from ilist, storing it in the prev pointer of the first node in the
list instead.

This shrinks ilist from 8 to 4 bytes, BasicBlock from 40->36 bytes, Function
from 76->68 bytes, Module from 52->44 bytes.

llvm-svn: 36210
2007-04-17 18:41:42 +00:00
Chris Lattner ceb4b20807 make getnext/getprev accessors private.
llvm-svn: 36209
2007-04-17 18:30:41 +00:00
Chris Lattner 4a1e0b8c3e make next/prev accessors private
llvm-svn: 36207
2007-04-17 18:16:39 +00:00
Chris Lattner d1721d2e50 bool on darwin/ppc is 4 bytes.
llvm-svn: 36206
2007-04-17 18:15:04 +00:00
Chris Lattner b0aebc208c Instruction:: Next/Prev accessors are now private
llvm-svn: 36204
2007-04-17 18:03:55 +00:00
Anton Korobeynikov 8b7aab009e Implemented correct stack probing on mingw/cygwin for dynamic alloca's.
Also, fixed static case in presence of eax livin. This fixes PR331

PS: Why don't we still have push/pop instructions? :)
llvm-svn: 36195
2007-04-17 09:20:00 +00:00
Jeff Cohen 38be56ddf5 Fix build breakage on 64-bit systems.
llvm-svn: 36193
2007-04-17 05:33:04 +00:00
Chris Lattner 3c2ff10b93 merge several fields in GlobalValue to use the same word, move CallingConv
field into SubclassData in Value.  This shrinks GlobalVAlue from 48->40
bytes, Function from 88->76, and GlobalVariable from 76->68.  This trims
4640 bytes off my testcase, reading a bc file without materializing any
functions.

llvm-svn: 36192
2007-04-17 04:31:29 +00:00
Chris Lattner 422cfcdcb3 The (negative) offset from a SymbolTableListTraits-using ilist to its container
object is always constant.  As such, evaluate it at compile time instead of storing
it as an ivar in SymbolTableListTraits.  This shrinks every SymbolTableListTraits
ilist by a word, shrinking BasicBlock from 44->40 bytes, Function from 96->88 bytes,
and Module from 60->52 bytes.

llvm-svn: 36189
2007-04-17 04:04:14 +00:00
Chris Lattner b47aa543bb Refactor SymbolTableListTraits to only have a single pointer in it, instead
of two.  This shrinkifies Function by 8 bytes (104->96) and Module by 8
bytes (68->60).  On a testcase of mine, this reduces the memory used to
read a module header from 565680b to 561024, a little over 4K.

llvm-svn: 36188
2007-04-17 03:26:42 +00:00
Chris Lattner 0ed36f4078 urr, yeah.
llvm-svn: 36187
2007-04-17 02:04:39 +00:00
Reid Spencer 654b96df8b Fix 80 col violations.
llvm-svn: 36168
2007-04-16 21:24:12 +00:00
Devang Patel 9294281ac1 Proivde getAnalysis<FPAnalysis>(Func) support.
llvm-svn: 36159
2007-04-16 20:56:24 +00:00
Devang Patel e64d30573f Give each pass manager chance to manage lower level analysis pass, which is
pass required by one of pass managed by the manager.

llvm-svn: 36153
2007-04-16 20:12:57 +00:00
Devang Patel 254c9eb7c8 Add getPotentialPassManagerType(). No functionality change, yet.
llvm-svn: 36149
2007-04-16 18:51:25 +00:00
Anton Korobeynikov fb80151c42 Removed tabs everywhere except autogenerated & external files. Add make
target for tabs checking.

llvm-svn: 36146
2007-04-16 18:10:23 +00:00
Reid Spencer 9c2eec377e For PR1328:
Don't assert everytime an intrinsic name isn't recognized. Instead, make
the assert optional when callin getIntrinsicID(). This allows the assembler
to handle invalid intrinsic names gracefully.

llvm-svn: 36120
2007-04-16 06:54:34 +00:00
Owen Anderson f064c92298 Tabs -> Spaces
llvm-svn: 36094
2007-04-15 23:14:18 +00:00
Owen Anderson f35a1dbc7a Remove ImmediateDominator analysis. The same information can be obtained from DomTree. A lot of code for
constructing ImmediateDominator is now folded into DomTree construction.

This is part of the ongoing work for PR217.

llvm-svn: 36063
2007-04-15 08:47:27 +00:00
Owen Anderson 78cecc817f Make ETForest depend on DomTree rather than IDom. This is the first step
in the long process that will be fixing PR 217.

llvm-svn: 36034
2007-04-14 23:49:24 +00:00
Jeff Cohen e7ce8f23f6 Fix PR1329.
llvm-svn: 36016
2007-04-14 21:50:21 +00:00
Chris Lattner 45f15572f7 add GetElementPtrInst::hasAllZeroIndices, a long-overdue helper method.
Writing it twice in the same day was too much for me.

llvm-svn: 35978
2007-04-14 00:12:57 +00:00
Reid Spencer 9329e7b626 Implement a getBitsNeeded method to determine how many bits are needed to
represent a string in binary form by an APInt.

llvm-svn: 35968
2007-04-13 19:19:07 +00:00
Dan Gohman a789d31517 Rename Value::getValueType to getValueID, to avoid confusion with
other things named getValueType.

llvm-svn: 35964
2007-04-13 18:12:09 +00:00
Chris Lattner e71f1447f7 CSE simple binary expressions when they are inserted. This makes LSR produce
less huge code that needs to be cleaned up by sdisel.

llvm-svn: 35959
2007-04-13 05:04:18 +00:00
Lauro Ramos Venancio 749e4668e7 Implement the "thread_local" keyword.
llvm-svn: 35950
2007-04-12 18:32:50 +00:00
Reid Spencer c6251a7dfd For PR1284:
Implement the "part_set" intrinsic.

llvm-svn: 35938
2007-04-12 02:48:46 +00:00
Chris Lattner af039c53c0 improve the patch for PR1318 to also support grouped options with custom
handlers (like the pass list).  My previous fix only supported *new* command
line options, not additions to old ones.

This fixes test/Feature/load_module.ll

llvm-svn: 35935
2007-04-12 00:36:29 +00:00
Reid Spencer a472f66dd0 For PR1146:
Put the parameter attributes in their own ParamAttr name space. Adjust the
rest of llvm as a result.

llvm-svn: 35877
2007-04-11 02:44:20 +00:00
Reid Spencer d3f622e0d5 Teach sys::Path how to recognize different kinds of object files for ELF
and Mach-O systems. Additionally, correct the Mach-O logic code to look at
byte 12 not byte 15. Hopefully this fixes the llvm-ld warning on Darwin.

llvm-svn: 35876
2007-04-11 02:02:09 +00:00
Bill Wendling f099841573 Add support for our first SSSE3 instruction "pmulhrsw".
llvm-svn: 35869
2007-04-10 22:10:25 +00:00
Chris Lattner b05e1727ef fix a comment bug Reid noticed
llvm-svn: 35864
2007-04-10 16:33:06 +00:00
Chris Lattner 2cc9c488e8 add missing methods, mark stuff const
llvm-svn: 35862
2007-04-10 07:06:21 +00:00
Chris Lattner 338bd30f19 getLimitedValue now just forward to APInt's getLimitedValue. Mark it const.
llvm-svn: 35861
2007-04-10 06:44:12 +00:00
Chris Lattner c43883c8a9 add a method
llvm-svn: 35860
2007-04-10 06:43:18 +00:00
Reid Spencer 782ae66e41 Drop the "bit" prefix for the part.select intrinsic.
llvm-svn: 35854
2007-04-10 02:52:46 +00:00
Chris Lattner 35f0417ec1 remove dead target hooks.
llvm-svn: 35847
2007-04-09 23:34:08 +00:00
Chris Lattner 39f65335d5 remove some dead target hooks, subsumed by isLegalAddressingMode
llvm-svn: 35840
2007-04-09 22:27:04 +00:00
Chris Lattner 288c994403 add a default ctor for AddrMode.
llvm-svn: 35832
2007-04-09 21:18:34 +00:00
Reid Spencer ce38beb6a4 For PR1146:
* Add ParamAttrs to InvokeInst class too.
* Make sure all initializes of ParamAttrs in CallInst and InvokeInst are 0
* Destruct the ParamAttrs in Call/Invoke destructors to avoid memory
  leaks. This will change when ParamAttrsList is uniquified but needs to
  be correct until then.

llvm-svn: 35824
2007-04-09 18:00:57 +00:00
Reid Spencer 019c8869ed For PR1146:
* Add ParamAttrList pointers to Function and CallInst.
* Move the implementation of ParamAttrList from Type.cpp to Function.cpp

llvm-svn: 35818
2007-04-09 15:01:12 +00:00
Anton Korobeynikov 506eaf7915 Next stage into switch lowering refactoring
1. Fix some bugs in the jump table lowering threshold
2. Implement much better metric for optimal pivot selection
3. Tune thresholds for different lowering methods
4. Implement shift-and trick for lowering small (<machine word
length) cases with few destinations. Good testcase will follow.

llvm-svn: 35816
2007-04-09 12:31:58 +00:00
Reid Spencer 1ba12951e4 For PR1146:
Remove the handling of ParameterAttributes from FunctionType as they are
their own object defined in ParameterAttributes.h now.

llvm-svn: 35805
2007-04-09 06:06:57 +00:00
Owen Anderson 6978893a8f Move isReachableFromEntry out of line to avoid an unnecessary #include
llvm-svn: 35797
2007-04-09 04:07:36 +00:00
Reid Spencer bdcf9d6f08 Chris convinced me that the default size of the SmallVector (2) was too
small.  Since it doesn't cost much to have 2 more (8 bytes), but not having
them would require a malloc as soon as the third one is needed. Setting
the default to 4 delays the malloc until the 5th parameter attribute.

llvm-svn: 35793
2007-04-09 01:53:54 +00:00
Reid Spencer 389decb3a4 Remove redundancy.
llvm-svn: 35790
2007-04-09 01:26:02 +00:00
Owen Anderson ae39ca037a Cleanup some from my DomSet-removal changes. Add a new
isReachableFromEntry
test to ETForest to factor a common test out of code.

llvm-svn: 35786
2007-04-09 00:52:49 +00:00
Reid Spencer db77ca7cc1 Fix a typo.
llvm-svn: 35781
2007-04-08 22:50:29 +00:00
Reid Spencer f71c15bda6 Implement more feedback:
* Allow attributes to be added and removed singly or jointly so that in
  the future something like -pruneh can manipulate them more easily.
* Move functions generally only useful for LLVM internals to the end of
  the accessors list instead of the beginning.

llvm-svn: 35780
2007-04-08 22:30:27 +00:00
Reid Spencer 0c19c91961 Implement review feedback.
llvm-svn: 35777
2007-04-08 22:05:44 +00:00
Owen Anderson fe507270ac Remove DomSet completely. This concludes work on PR1171.
llvm-svn: 35775
2007-04-08 21:30:05 +00:00
Reid Spencer 0d95160c6d Implement the output inserter for PathWithStatus
llvm-svn: 35770
2007-04-08 20:05:10 +00:00
Reid Spencer 3638a2375f For PR1146:
New header file to provide parameter attribute declarations.

llvm-svn: 35767
2007-04-08 14:46:50 +00:00
Reid Spencer 43340fee01 For PR1291:
Change to use PathWithStatus

llvm-svn: 35746
2007-04-07 19:50:21 +00:00
Reid Spencer ceeb918dd1 For PR1291:
Implement the PathWithStatus class and its use throughout lib/System.

llvm-svn: 35742
2007-04-07 18:52:17 +00:00
Owen Anderson f7ebea1b9f Add DomSet back, and revert the changes to LoopSimplify. Apparently the
ETForest updating mechanisms don't work as I thought they did.  These changes
will be reapplied once the issue is worked out.

llvm-svn: 35741
2007-04-07 18:23:27 +00:00
Nick Lewycky b89804f246 Add signExtend to ConstantRange, to complement zeroExtend and truncate.
llvm-svn: 35733
2007-04-07 15:41:33 +00:00
Owen Anderson 8763ba1b88 Completely purge DomSet. This is the (hopefully) final patch for PR1171.
llvm-svn: 35731
2007-04-07 07:17:27 +00:00
Owen Anderson f095bf3ac4 Expunge DomSet from CodeExtractor. This is part of the continuing work
on PR1171.

llvm-svn: 35726
2007-04-07 05:31:27 +00:00
Chris Lattner 45c0dce868 add loop rot
llvm-svn: 35722
2007-04-07 04:43:02 +00:00
Devang Patel f42389ffe5 Add loop rotation pass.
llvm-svn: 35714
2007-04-07 01:25:15 +00:00
Chris Lattner 5247f60d20 rearchitect the registration mechanism used by the command line option stuff.
This dramatically reduce the amount of memory allocated by the commandline stuff
at static init time, changing it to build local data structures when ParseCommandLineOptions
is called.  In a dummy empty program that links some llvm libraries, this reduces
the number of malloc'd bytes from 4864 to 3360 on entry to main.  Most of that
memory is now allocated by non-commandline related stuff.

llvm-svn: 35701
2007-04-06 21:06:55 +00:00
Chris Lattner d31e5155be Switch some vectors to smallvectors. This reduces amount of malloc'd
memory that occurs before main starts from 5104 to 4864 bytes with a dummy
example app.

llvm-svn: 35698
2007-04-06 18:36:18 +00:00
Chris Lattner 7bbcd122db Eliminate unneeded virtual methods
llvm-svn: 35697
2007-04-06 18:06:27 +00:00
Reid Spencer 8d529a18f4 For PR1209:
Implement Type class's ContainedTys without using a std::vector.

llvm-svn: 35693
2007-04-06 02:02:20 +00:00
Chris Lattner 91e66dc136 eliminate a virtual method
llvm-svn: 35691
2007-04-05 22:21:39 +00:00
Chris Lattner 2031b02faf remove the dead removeArgument method, rename Options to OptionsMap.
llvm-svn: 35690
2007-04-05 21:58:17 +00:00
Chris Lattner 9df6baa772 Add a helper class (APSInt) which can represent an APInt along with sign
information.  This is useful when a value does have a sign associated with
it.  This shouldn't be used generally in LLVM for mid-level optimizer stuff.

llvm-svn: 35681
2007-04-05 05:20:11 +00:00
Reid Spencer cce90f55ed Implement the llvm.bit.part_select.iN.iN.iN overloaded intrinsic.
llvm-svn: 35678
2007-04-04 23:48:25 +00:00
Lauro Ramos Venancio 6db5eb028c Fix release build.
llvm-svn: 35676
2007-04-04 22:13:39 +00:00
Anton Korobeynikov 915e61736b Properly emit range comparisons for switch cases, where neighbour cases
go to the same destination. Now we're producing really good code for
switch-lower-feature.ll testcase

llvm-svn: 35672
2007-04-04 21:14:49 +00:00
Evan Cheng 44a28f7d77 Add isFixedObjectIndex. It returns true if the stack slot index is for a fixed stack object.
llvm-svn: 35659
2007-04-04 07:38:25 +00:00
Reid Spencer 031fb8d4dc Make the LinkInFile and LinkInLibrary both return an indication of whether
the file was found to be a native library (and thus not linked by these
functions).

llvm-svn: 35652
2007-04-04 06:32:01 +00:00
Reid Spencer 6d211ab8ed For PR1302:
Make the FileType enumerators more readable and add COFF, ELF and Mach-O.

llvm-svn: 35649
2007-04-04 06:29:49 +00:00
Chris Lattner e7cc7c825b trivial optimization
llvm-svn: 35648
2007-04-04 06:18:21 +00:00
Chris Lattner adf83a3513 use calloc instead of new/memset, it is more efficient
llvm-svn: 35644
2007-04-04 00:44:31 +00:00
Chris Lattner c712a1322a Initialize the symbol table to zero explicitly. This ensures that the
symbol table does no allocations for prototypes or other lazily deserialized
functions, saving significant space and time.

llvm-svn: 35643
2007-04-04 00:30:49 +00:00
Chris Lattner 2376346a8e Extend StringMap to support being initialized as completely empty. When
initialized this way, they do not do a malloc to allocate their buckets.

llvm-svn: 35642
2007-04-04 00:29:37 +00:00
Bill Wendling ac5b650a54 Adding more MMX instructions.
llvm-svn: 35638
2007-04-03 23:48:32 +00:00
Bill Wendling e7b2a864f2 Add FEMMS and ADDQ. Renamed MMX recipes to prepend the MMX_ to them.
llvm-svn: 35616
2007-04-03 06:00:37 +00:00
Chris Lattner fae5c8fae9 add missing operator
llvm-svn: 35613
2007-04-03 04:25:46 +00:00
Chris Lattner 6b3ff17c70 add a helper function to constantint.
llvm-svn: 35610
2007-04-03 01:41:34 +00:00
Evan Cheng 476fb6a5c9 Ugh. Copy coalescer does not update register numbers.
llvm-svn: 35600
2007-04-02 18:49:18 +00:00
Chris Lattner d14447833a add a helper function.
llvm-svn: 35585
2007-04-02 05:41:00 +00:00
Chris Lattner 7c773e6850 add range version of insert()
llvm-svn: 35572
2007-04-02 01:21:19 +00:00
Zhou Sheng 63b6bc1c88 Remove unused methods.
llvm-svn: 35553
2007-04-01 12:45:33 +00:00
Reid Spencer eba021453b For PR1297:
Implement bswap, ctpop, ctlz, and cttz utilizing the new overloaded
intrinsic feature of tblgen. By defining llvm_int_ty to have an ValueType
of iAny, any intrinsic using that type becomes an overloaded intrinsic.
This signals that a) any integer type could be used for that argument and
b) the intrinsic needs a suffix to match each such argument for the
actual intrinsic.

llvm-svn: 35544
2007-04-01 07:30:57 +00:00
Reid Spencer c7c4880ab1 For PR1297:
Intrinsic functions might need to be generated (if they are overloaded) so
returning a const char* is no longer possible. Change getOperationName to
return a std::string instead.

llvm-svn: 35543
2007-04-01 07:28:37 +00:00
Reid Spencer be23fb0370 For PR1297:
Change the interface to the getName, getType, getDeclaration methods to
include the "actual" types of the result/arguments. This is necessary to
support overloaded intrinsics.

llvm-svn: 35542
2007-04-01 07:26:35 +00:00
Reid Spencer 51455e00dc For PR1297:
Add an "iAny" ValueType as a place holder for an integer type of any
bit width. This is used for intrinsics overloading on integer type.

llvm-svn: 35538
2007-04-01 07:17:45 +00:00
Chris Lattner f2836d17b6 Split the sdisel code munging stuff out into its own opt-pass, CodeGenPrepare.
llvm-svn: 35528
2007-03-31 04:06:36 +00:00
Chris Lattner f2d71d49e2 switch TL::getValueType to use MVT::getValueType.
llvm-svn: 35527
2007-03-31 04:05:24 +00:00
Chris Lattner 516f38b35f add a method to turn a type into a VT.
llvm-svn: 35526
2007-03-31 04:03:02 +00:00
Chris Lattner ac3f81508c add one addressing mode description hook to rule them all.
llvm-svn: 35520
2007-03-30 23:14:50 +00:00
Zhou Sheng 02d3ac6895 Make sure this method just return value equal or less than Limit.
llvm-svn: 35509
2007-03-30 16:50:28 +00:00
Duncan Sands 3dd14331ac Correct typo.
llvm-svn: 35504
2007-03-30 06:39:42 +00:00
Zhou Sheng 9737575772 Rename and correct the method "greaterOrEqual".
llvm-svn: 35502
2007-03-30 05:10:59 +00:00
Zhou Sheng 12b3549f5d Add two utility methods into ConstantInt.
llvm-svn: 35501
2007-03-30 03:22:55 +00:00
Reid Spencer 200c6f9c3d For PR789:
Make the sys::Path::getFileStatus function more efficient by having it
return a pointer to the FileStatus structure rather than copy it. Adjust
uses of the function accordingly. Also, fix some memory issues in sys::Path.

llvm-svn: 35476
2007-03-29 19:05:44 +00:00
Chris Lattner c3f4d87c90 add a hook to demat functions.
llvm-svn: 35471
2007-03-29 18:30:26 +00:00
Jeff Cohen 73926a5fb5 uniqueID is a uint64_t (caught by VC++)
llvm-svn: 35465
2007-03-29 17:28:31 +00:00
Reid Spencer d394617a55 Add a uniqueID field to the FileStatus structure for Paths. This will map
to the inode number on Unix and something far less unique on Windows. The
windows case needs to be improved.

llvm-svn: 35461
2007-03-29 17:00:31 +00:00
Reid Spencer 858045e396 Don't forget to delete the FileStatus structure on destruction of Path.
llvm-svn: 35459
2007-03-29 16:50:49 +00:00
Reid Spencer 0f92f0e519 For PR789:
* Add a method: bool isAbsolute() const, which determines if the path name
  is absolute or not.
* Implement caching of file status information in the Path object. Allow it
  to be updated forcefully or lazily re-fetched from the cached value.

llvm-svn: 35456
2007-03-29 16:43:20 +00:00
Evan Cheng c2cba18f2b Remove isLegalAddressImmediate.
llvm-svn: 35406
2007-03-28 01:53:55 +00:00
Bill Wendling 5852729ce8 Add support for integer comparison builtins.
llvm-svn: 35384
2007-03-27 20:21:31 +00:00
Evan Cheng ec3ac316e2 Change findRegisterUseOperand() to return operand index instead.
llvm-svn: 35363
2007-03-26 22:37:45 +00:00
Dale Johannesen fd18a0cdf4 Fix reversed logic in getRegsUsed. Rename RegStates to RegsAvailable to
hopefully forestall similar errors.

llvm-svn: 35362
2007-03-26 22:23:54 +00:00
Bill Wendling 98d2104c6f Add support for the v1i64 type. This makes better code for this:
#include <mmintrin.h>

extern __m64 C;

void baz(__v2si *A, __v2si *B)
{
  *A = C;
  _mm_empty();
}

We get this:

_baz:
        call "L1$pb"
"L1$pb":
        popl %eax
        movl L_C$non_lazy_ptr-"L1$pb"(%eax), %eax
        movq (%eax), %mm0
        movl 4(%esp), %eax
        movq %mm0, (%eax)
        emms
        ret

GCC gives us this:

_baz:
        pushl   %ebx
        call    L3
"L00000000001$pb":
L3:
        popl    %ebx
        subl    $8, %esp
        movl    L_C$non_lazy_ptr-"L00000000001$pb"(%ebx), %eax
        movl    (%eax), %edx
        movl    4(%eax), %ecx
        movl    16(%esp), %eax
        movl    %edx, (%eax)
        movl    %ecx, 4(%eax)
        emms
        addl    $8, %esp
        popl    %ebx
        ret

llvm-svn: 35351
2007-03-26 07:53:08 +00:00
Chris Lattner 7a86dc5c27 Start value symbol tables out small (space for 16 elts), not huge (space for 512).
This is particularly useful for the JIT, which lazily deserializes functions.

llvm-svn: 35346
2007-03-26 01:45:35 +00:00
Reid Spencer 8314b16fc3 Compute getLowBitsSet correctly. Using the complement of a 64-bit value
and shifting down without regard for the bitwidth of the APInt can lead
to incorrect initialization values. Instead, check for the word size case
(to avoid undef results from shift) and then do (1 << loBitsSet) - 1

llvm-svn: 35344
2007-03-25 21:58:42 +00:00
Anton Korobeynikov 7037826c86 First step of switch lowering refactoring: perform worklist-driven
strategy, emit JT's where possible.

llvm-svn: 35338
2007-03-25 15:07:15 +00:00
Chris Lattner d685514e2e switch TargetLowering::getConstraintType to take the entire constraint,
not just the first letter.  No functionality change.

llvm-svn: 35322
2007-03-25 02:14:49 +00:00
Reid Spencer 9bb967ec5c Fix a typo in a comment.
llvm-svn: 35316
2007-03-25 01:13:46 +00:00
Reid Spencer d4e07f200a Actually, for getHighBitsSet and getLowBitsSet, don't make a 0 bit size
illegal. Instead do the 0 valued construction for the user. This is because
the caller may not know (or care to check) that the number of bits set is
zero.

llvm-svn: 35315
2007-03-25 00:01:47 +00:00
Reid Spencer 42fbb4fbe3 Make it illegal to set 0 bits in getHighBitsSet and getLowBitsSet. For that
they should have used the uint64_t constructor. This avoids causing
undefined results via shifts by the word size when the bit width is an
exact multiple of the word size.

llvm-svn: 35313
2007-03-24 23:47:58 +00:00
Reid Spencer 790631ff2d In the getBitsSet function, don't optimize for a common case that is
already covered by getLowBitsSet (i.e. when loBits==0). Consequently, remove
the default value for loBits and reorder the arguments to the more natural
loBits, hiBits order. This makes it more clear that this function is for bit
groups in the middle of the bit width and not towards one end or the other.

llvm-svn: 35312
2007-03-24 23:42:47 +00:00
Reid Spencer cf3a678d40 Don't invoke undefined behavior in shifts in the functions getHighBitsSet
and getLowBitsSet.

llvm-svn: 35311
2007-03-24 23:35:54 +00:00
Reid Spencer b334e8ac57 Implement the getBitsSet function.
llvm-svn: 35310
2007-03-24 23:27:48 +00:00
Reid Spencer 30e83dfc4b Implement the getHighBitsSet and getLowBitsSet functions.
llvm-svn: 35308
2007-03-24 23:05:35 +00:00
Reid Spencer 41eadeb49d Get the signs in the right place!
llvm-svn: 35307
2007-03-24 22:50:43 +00:00
Reid Spencer 709a820a53 Undo the last change and make this really implement remainder and not
modulus. The previous change was a result of incorrect documentation in
the LangRef.html.

llvm-svn: 35305
2007-03-24 22:37:23 +00:00
Reid Spencer 3e51cacd4f Correct the implementation of srem to be remainder, not modulus. The sign of
the result must follow the sign of the divisor.

llvm-svn: 35302
2007-03-24 21:56:22 +00:00
Reid Spencer 77859c2d49 Clean up this interface:
1. Group similar methods into doxygen groups
2. Reorganize the groups into a consist flow.
3. Significantly improve the quality of the documentation on several methods
4. Rewrite srem and sdiv to eliminate a copy and improve readability.
5. Eliminate unneeded forward references.

llvm-svn: 35300
2007-03-24 18:09:18 +00:00
Chris Lattner 7750e344d3 add a valuetype for v1i64, which is needed by mmx.
llvm-svn: 35298
2007-03-24 17:36:26 +00:00
Bill Wendling 3ab6e72143 This is dead. DEAD I tells you!!
llvm-svn: 35291
2007-03-23 22:42:04 +00:00
Bill Wendling 871c77cda1 PR1260:
Add final support to get the QT example to compile.

llvm-svn: 35290
2007-03-23 22:35:46 +00:00
Dan Gohman ac8fe43024 Add the 'explicit' keyword to several constructors that accept one
argument that don't appear intended as implicit-conversion operators.

llvm-svn: 35280
2007-03-23 18:44:11 +00:00
Bill Wendling 7c17fbc5b7 We generate a shufflevector instruction, so we don't need the builtin
intrinsic.

llvm-svn: 35269
2007-03-22 20:29:26 +00:00
Jeff Cohen d530a17cef Be more explicit concerning argument sizes.
Use VC++ byteswap intrinsics.

llvm-svn: 35267
2007-03-22 19:11:57 +00:00
Bill Wendling d551a18783 Support added for shifts and unpacking MMX instructions.
llvm-svn: 35266
2007-03-22 18:42:45 +00:00
Reid Spencer be7e9bc494 For PR1145:
Add the NoUnwindAttribute to allow explicit marking of functions that do
not unwind the stack via the unwind instruction. This is akin to gcc's
NoThrow attribute and used for optimizing exception handling.

llvm-svn: 35250
2007-03-22 00:32:02 +00:00
Reid Spencer 925e8aa370 Fix a comment.
llvm-svn: 35246
2007-03-21 22:22:19 +00:00
Dale Johannesen 0c6bb5eab7 repair x86 performance, dejagnu problems from previous change
llvm-svn: 35245
2007-03-21 21:51:52 +00:00
Dale Johannesen bacf4acf65 do not share old induction variables when this would result in invalid
instructions (that would have to be split later)

llvm-svn: 35227
2007-03-20 21:54:54 +00:00
Dale Johannesen d05a1a2ade maintain LiveIn when splitting blocks (register scavenging needs it)
llvm-svn: 35226
2007-03-20 21:35:06 +00:00
Devang Patel b39885d23d LoopSimplify::FindPHIToPartitionLoops()
Use ETForest instead of DominatorSet.

llvm-svn: 35222
2007-03-20 20:19:48 +00:00
Evan Cheng 0e3278e505 First cut trivial re-materialization support.
llvm-svn: 35208
2007-03-20 08:13:50 +00:00
Evan Cheng 61f39d186c Added MRegisterInfo hook to re-materialize an instruction.
llvm-svn: 35205
2007-03-20 08:09:38 +00:00
Zhou Sheng 4852dc1cd5 Correct the name: isStrictPositive --> isStrictlyPositive.
llvm-svn: 35201
2007-03-20 02:18:16 +00:00
Chris Lattner cc411d66d0 Add a dtor to fix leaks from all clients of BitVector.
llvm-svn: 35200
2007-03-20 02:10:56 +00:00
Reid Spencer 362fb29d80 Allow ConstantInt::get(Ty, uint64_t) to interpret the 64-bit values as a
negative number. This is needed to fix test/Assembler/2007-03-19-NegValue.ll

llvm-svn: 35181
2007-03-19 20:39:08 +00:00
Reid Spencer 568b8b54dc Add an indication of signedness to the uint64_t constructor so sign bits
can be extended. This helps fix test/Assembler/2007-03-19-NegValue.ll

llvm-svn: 35179
2007-03-19 20:36:48 +00:00
Duncan Sands 5a040c510b Fix obvious typo in comment.
llvm-svn: 35164
2007-03-19 14:25:02 +00:00
Evan Cheng 0420161130 Add a TargetInstrDescriptor flag to mark an instruction as "re-materializable".
It means the instruction can be easily re-materialized at any point. e.g.
constant generation, load from constantpool.

llvm-svn: 35158
2007-03-19 06:19:16 +00:00
Zhou Sheng f89ea5068f Add isStrictPositive() to APInt to determine if this APInt Value > 0.
llvm-svn: 35156
2007-03-19 05:22:18 +00:00
Evan Cheng fd43be8532 Fix comment.
llvm-svn: 35139
2007-03-18 03:26:04 +00:00
Evan Cheng f6f043332f Track the BB's where each virtual register is used.
llvm-svn: 35135
2007-03-17 09:29:54 +00:00
Evan Cheng a2a2fd1e55 Added isLegalAddressExpression hook to test if the given expression can be
folded into target addressing mode for the given type.

llvm-svn: 35121
2007-03-16 08:42:32 +00:00
Evan Cheng 2ae53613ca These forward declarations are not needed.
llvm-svn: 35120
2007-03-16 08:41:06 +00:00
Bill Wendling e31034125c Multiplication support for MMX.
llvm-svn: 35118
2007-03-15 21:24:36 +00:00
Jeff Cohen 137a16ea95 Fix for VS 2005 problem supplied by Morten Ofstad.
llvm-svn: 35098
2007-03-14 15:25:21 +00:00
Zhou Sheng b9c3707e97 Add zextOrCopy() into APInt for convenience.
llvm-svn: 35079
2007-03-13 06:16:26 +00:00
Evan Cheng 6486974e8d More flexible TargetLowering LSR hooks for testing whether an immediate is
a legal target address immediate or scale.

llvm-svn: 35071
2007-03-12 23:26:27 +00:00
Zhou Sheng e8e618a6ff Add getSignBit() and operator<<= into APInt for convenience.
llvm-svn: 35059
2007-03-11 07:16:10 +00:00
Nick Lewycky e455937fae Add getter methods for the extremes of a ConstantRange.
llvm-svn: 35056
2007-03-10 15:54:12 +00:00
Bill Wendling e9b81f5366 Adding more arithmetic operators to MMX. This is an almost exact copy of
the addition. Please let me know if you have suggestions.

llvm-svn: 35055
2007-03-10 09:57:05 +00:00
Bill Wendling 6092ce25cf Added "padd*" support for MMX. Added MMX move stuff to X86InstrInfo so that
moves, loads, etc. are recognized.

llvm-svn: 35031
2007-03-08 22:09:11 +00:00
Evan Cheng 58aeb9c444 Add ReadOnlySection directive.
llvm-svn: 35015
2007-03-08 01:00:38 +00:00
Evan Cheng f9e003b653 Added ContainsRelocations() to check if a constant might only be resolvable at load time.
llvm-svn: 35014
2007-03-08 00:59:12 +00:00
Anton Korobeynikov ed4b303c10 Refactoring of formal parameter flags. Enable properly use of
zext/sext/aext stuff.

llvm-svn: 35008
2007-03-07 16:25:09 +00:00
Evan Cheng b127b0bc27 Add a utility function to test whether a load is unindexed.
llvm-svn: 35004
2007-03-07 08:04:41 +00:00
Devang Patel 2ac57e1f02 Now IndVarSimplify is a LoopPass.
llvm-svn: 35003
2007-03-07 06:39:01 +00:00
Devang Patel 69730c96db Now LICM is a LoopPass.
llvm-svn: 35001
2007-03-07 04:41:30 +00:00
Anton Korobeynikov 942fda027f Fix DWARF debugging information on x86/Linux and (hopefully)
Mingw32/Cygwin targets. This fixes PR978

llvm-svn: 35000
2007-03-07 02:47:57 +00:00
Evan Cheng 7e1cae3d2d Add skipTo to set internal iterator. Useful when pointed to instruction is deleted.
llvm-svn: 34997
2007-03-07 02:36:16 +00:00
Devang Patel 9779e56c04 Now LoopUnroll is a LoopPass.
llvm-svn: 34996
2007-03-07 01:38:05 +00:00
Devang Patel 901a27d892 Now LoopUnswitch is a LoopPass.
llvm-svn: 34992
2007-03-07 00:26:10 +00:00
Devang Patel b0743b5d6a Now LoopStrengthReduce is a LoopPass.
llvm-svn: 34984
2007-03-06 21:14:09 +00:00
Devang Patel 4a8725cf2f Use schedulePass() instead of assignPassManager() to add new LPPassManager.
This ensures that require analysis info is available.

llvm-svn: 34980
2007-03-06 19:11:25 +00:00
Devang Patel ef7ac13406 Add LPPassManager::insertLoop().
llvm-svn: 34979
2007-03-06 19:00:02 +00:00
Devang Patel fca3aa3645 LPPassManager::deleteLoopFromQueue() add meat. Cut-n-paste code from
LoopUnswitch pass.

llvm-svn: 34977
2007-03-06 18:38:33 +00:00
Devang Patel 1699384509 LPPassManager. Implement preparePassManager() hook.
llvm-svn: 34975
2007-03-06 17:59:37 +00:00
Devang Patel 9d9fc90952 Keep track of higher level analysis.
llvm-svn: 34974
2007-03-06 17:52:53 +00:00
Devang Patel 84ffc223f1 LPPassManager : Add initialization and finalizatino hooks.
llvm-svn: 34968
2007-03-06 16:59:03 +00:00
Evan Cheng 8b8cac289b Minor interface change.
llvm-svn: 34967
2007-03-06 10:05:14 +00:00
Evan Cheng 372c2c69f8 Register scavenger is now capable of scavenging. It spills a register whose use of furthest away to make it available.
llvm-svn: 34964
2007-03-06 10:01:25 +00:00
Anton Korobeynikov f0b9316552 Enumerate SDISel formal parameter attributes. Make use of new
enumeration.

llvm-svn: 34960
2007-03-06 06:10:33 +00:00
Anton Korobeynikov 666d23d4e6 Implement PR1240
llvm-svn: 34959
2007-03-06 05:32:48 +00:00
Reid Spencer d7c6174f85 Make StoreValueToMemory a little more efficient by not copying a
GenericValue to a temporary.

llvm-svn: 34957
2007-03-06 05:02:28 +00:00
Reid Spencer b5caad1d5c Make GenericeValue into a struct with a union instead of just a union. This
allows an APInt value to be constructed. Remove all the native integer types
from the union. These are replaced with the single IntVal of type APInt.

llvm-svn: 34945
2007-03-06 03:01:54 +00:00
Devang Patel a8c81c5261 Use std::deque to manage loop queue inside LPPassManager.
llvm-svn: 34943
2007-03-06 02:30:46 +00:00
Devang Patel 42dd1e92c7 Keep track of inherited analysis. For example, if a loop pass does not
preserve dominator info then it should update parent FPPassManager's
available analysis info to reflect this.

llvm-svn: 34942
2007-03-06 01:55:46 +00:00
Devang Patel d74ede70fb Add preparePassManager() hook. This allows each pass to check whether
current active pass manager is appropriate or not.

A loop pass may consider current LPPassManager in appropraite if loop
pass is not preserving analysis information that is used by other
passes managed by current LPPassManager. In such situation, loop pass
can pop current LPPassManager from the PMStack using this  hook
and use new LPPassManager for itself.

llvm-svn: 34941
2007-03-06 01:06:16 +00:00
Bill Wendling b1c86b49ea Add the emms intrinsic for MMX support.
llvm-svn: 34938
2007-03-05 23:09:45 +00:00
Reid Spencer ad0075d6d4 Document the use of getValueType() more accurately, specifically explain
that the instruction opcode is added to the InstructionVal value and the
consequences of that.

llvm-svn: 34937
2007-03-05 23:06:32 +00:00
Devang Patel ec2b9a7850 Current pass manager, not the parent pass manager, assumes the role of
last user when one of the managed pass uses info provided by parent pass
manager.

This was exposed by LPPassManager work.

llvm-svn: 34936
2007-03-05 22:57:49 +00:00
Devang Patel 003a559633 Avoid constructing std::strings unless pass debugging is ON.
llvm-svn: 34933
2007-03-05 20:01:30 +00:00
Jeff Cohen 9bf52a72d1 The hack won't work on VS 2005, and it might not be needed anyway.
llvm-svn: 34930
2007-03-05 17:22:33 +00:00
Zhou Sheng 9587a919ee Correct the calculation in APInt::logBase2().
llvm-svn: 34929
2007-03-05 16:42:58 +00:00
Jeff Cohen 50bf51e8ac Elminate tabs and improve comments.
llvm-svn: 34921
2007-03-05 00:46:22 +00:00
Jeff Cohen b622c11f77 Unbreak VC++ build.
llvm-svn: 34917
2007-03-05 00:00:42 +00:00
Chris Lattner 2fbcc0714c add a getSignBit method, elimiante virtual method from getBitMask()
llvm-svn: 34916
2007-03-04 23:33:19 +00:00
Chris Lattner e824f085c8 fix 80 col violations, mark arrays static
llvm-svn: 34915
2007-03-04 23:33:03 +00:00
Chris Lattner dc3d4406bd add a new node
llvm-svn: 34912
2007-03-04 20:40:06 +00:00
Chris Lattner f083768df3 add iterator range version of ctor.
llvm-svn: 34899
2007-03-04 04:04:43 +00:00
Reid Spencer 30ed3bdaf2 Make the creation functions take an error string. This will help the
ExecutionEngine report errors on creation (like bytecode stuff) and also
help to get rid of exception handling.

llvm-svn: 34886
2007-03-03 18:18:11 +00:00
Reid Spencer c3bfe13ed5 Require the destination GlobalValue for LoadValueFromMemory to be passed
in as a parameter instead of returned.

llvm-svn: 34882
2007-03-03 08:35:14 +00:00
Reid Spencer 94a48f06e5 Regularize the interface for conversion functions to/from float/double.
llvm-svn: 34881
2007-03-03 08:34:02 +00:00
Reid Spencer cfe415c4e1 Add APIntVal as a possible GenericeValue.
llvm-svn: 34879
2007-03-03 07:36:44 +00:00
Reid Spencer 1a7d446963 Make getNumWords public so that those using getRawData stand a chance of
not reading beyond the end of the buffer returned.

llvm-svn: 34873
2007-03-03 06:17:23 +00:00
Reid Spencer 22c4fedabf Add names for some of the operators. This is needed for the macros in
the Interpreter.

llvm-svn: 34872
2007-03-03 05:37:23 +00:00
Reid Spencer 3588ab15d1 Add isPositive for symmetry with isNegative.
llvm-svn: 34862
2007-03-03 00:24:39 +00:00
Anton Korobeynikov e41e3fc74e Fix uninitialized use of variable. Remove tabs and fix identation.
llvm-svn: 34850
2007-03-02 22:19:41 +00:00
Chris Lattner c3b68788bb Fix PR1234 by working around a compiler bug.
llvm-svn: 34845
2007-03-02 18:16:29 +00:00
Owen Anderson a0d8da67c1 Fix a typo.
llvm-svn: 34836
2007-03-02 05:03:07 +00:00
Evan Cheng 934405cf03 Make it 64-bit safe.
llvm-svn: 34829
2007-03-02 02:31:37 +00:00
Reid Spencer 3f770e4afd Add a non-virtual test for zero, isZero, and rename isUnitValue isOne.
These will be used in upcoming patches to avoid virtual function call when
the client knows it is a ConstantInt.

llvm-svn: 34820
2007-03-02 00:27:06 +00:00
Reid Spencer 76b2ce19fc Add an abs() function to get the absolute value.
llvm-svn: 34819
2007-03-01 23:37:09 +00:00
Reid Spencer 1700b52b8b Remove virtual keyword from method that doesn't need to be virtual.
llvm-svn: 34817
2007-03-01 23:20:52 +00:00
Reid Spencer caace8cffd Make it possible to create an SCEVUnknown from an APInt as well as an int.
llvm-svn: 34816
2007-03-01 22:28:51 +00:00
Reid Spencer 9c61acc450 Add an isUnitValue method for comparison against 1. This just follows a
common pattern with isNullValue, isAllOnesValue, etc. It also helps to
prevent things like getZExtValue() == 1, which could assert for large
bitwidths.

llvm-svn: 34813
2007-03-01 21:50:41 +00:00
Owen Anderson 90db545350 Use GCC intrinsics when available, and use smarter fallbacks when not.
llvm-svn: 34812
2007-03-01 21:16:30 +00:00
Reid Spencer 022e05fdab Add doubleToBits and floatToBits methods.
llvm-svn: 34807
2007-03-01 20:39:01 +00:00
Jim Laskey 6458e6acb9 Collect eh filter info.
llvm-svn: 34804
2007-03-01 20:25:32 +00:00
Jim Laskey 14c5842a91 Add eh filter intrinsic.
llvm-svn: 34801
2007-03-01 20:23:39 +00:00
Reid Spencer f762893b9b Add bitsToDouble and bitsToFloat methods for re-interpretation of bits as FP.
llvm-svn: 34800
2007-03-01 20:06:51 +00:00
Reid Spencer d1bbfa5aa6 Drop the ConstantInt(const Type&, const APInt&) constructor. It is
redundant and more verbose than the ConstantInt(const APInt&) constructor.

llvm-svn: 34792
2007-03-01 19:30:34 +00:00
Reid Spencer 742d1704e1 Add methods for bit width modification: sextOrTrunc, zextOrTrunc.
llvm-svn: 34789
2007-03-01 17:15:32 +00:00
Evan Cheng 27bc565497 Add a version of FindUnusedReg that restrict search to a specific set of registers.
llvm-svn: 34784
2007-03-01 08:56:24 +00:00
Reid Spencer 6a44033465 Remove the "isSigned" parameters from ConstantRange. It turns out they
are not needed as the results are the same with or without it.

Patch by Nicholas Lewycky.

llvm-svn: 34782
2007-03-01 07:54:15 +00:00
Owen Anderson 3062625451 Use the GCC built-in for PopulationCount when it's available, and use a faster
algorithm when it's not.  This should be particularly noticeable in the
64-bit case.

llvm-svn: 34776
2007-03-01 05:41:28 +00:00
Reid Spencer d99feafd5f Add a square root function.
llvm-svn: 34775
2007-03-01 05:39:56 +00:00
Reid Spencer 5a642a7991 Reduce #includage by taking a method out of line.
llvm-svn: 34774
2007-03-01 04:02:06 +00:00
Reid Spencer 0f49976928 Add an IntegerType::getMask() method to get an APInt mask for the type.
llvm-svn: 34771
2007-03-01 02:25:03 +00:00
Evan Cheng 71c2d65e74 Clean up interface.
llvm-svn: 34769
2007-03-01 02:18:06 +00:00
Evan Cheng 8a703ad4b6 Track all joined registers and eliminate unneeded kills after all joining are done.
llvm-svn: 34767
2007-03-01 02:03:03 +00:00
Evan Cheng d97ccab64d MachineBasicBlock fields should not be public.
llvm-svn: 34766
2007-03-01 02:00:40 +00:00
Reid Spencer 9b3d6ec983 Move ConstantRange class to lib/Support from lib/Analysis and make its
interface not depend on Type or ICmpInst.

llvm-svn: 34761
2007-02-28 22:02:48 +00:00
Reid Spencer 0286bc1af5 Provide an ICmpInst::makeConstantRange to generate a ConstantRange value
from a predicate and an APInt. This is removed from ConstantRange class
so that ConstantRange doesn't have to depend on lib/VMCore.

llvm-svn: 34760
2007-02-28 22:00:54 +00:00
Reid Spencer 3a7e9d8e75 For PR1205:
Remove ConstantInt from ConstantRange interface and adjust its users to
compensate.

llvm-svn: 34758
2007-02-28 19:57:34 +00:00
Reid Spencer 8774fe816a Implement a convenience method to construct a ConstantInt directly from an
APInt. The implied type is the integer type that corresponds to the bit
width of the APInt.

llvm-svn: 34757
2007-02-28 19:50:21 +00:00
Reid Spencer 56f784d12d For PR1205:
First round of ConstantRange changes. This makes all CR constructors use
only APInt and not use ConstantInt. Clients are adjusted accordingly.

llvm-svn: 34756
2007-02-28 18:57:32 +00:00
Jim Laskey c114990526 Provide a more meaningful name.
llvm-svn: 34751
2007-02-28 18:37:50 +00:00
Reid Spencer e1f3f1919c For PR1205:
Convert ConstantRange class to use APInt internally as its value type for
the constant range, instead of ConstantInt.

llvm-svn: 34745
2007-02-28 17:36:23 +00:00
Reid Spencer 074b8a080e Make APInt a little more friendly to its users:
* Add support for + and - of a uint64_t.
  * Make trunc/sext/zext return *this so it can be chained with other ops
  * Add smin, smax, umin, umax functions for getting min/max values.

llvm-svn: 34742
2007-02-28 17:33:36 +00:00
Nate Begeman e0232ec706 More Mach-O writer improvements.
llvm-svn: 34740
2007-02-28 07:40:50 +00:00
Chris Lattner 74bb92902e add methods for analysis of call results and return nodes.
llvm-svn: 34738
2007-02-28 07:09:40 +00:00
Chris Lattner e74744143f add methods to analyze calls and formals.
llvm-svn: 34736
2007-02-28 06:56:37 +00:00
Reid Spencer f8470272a7 getActiveWords should return the number of words, not the index of the
highest active words. Increment its result by one.

llvm-svn: 34713
2007-02-28 02:20:49 +00:00
Evan Cheng e8af69632f Make requiresRegisterScavenging determination on a per MachineFunction basis.
llvm-svn: 34711
2007-02-28 00:59:19 +00:00
Evan Cheng 589ba3964b MRegisterInfo disowns RegScavenger. It's immutable.
llvm-svn: 34706
2007-02-28 00:17:36 +00:00
Reid Spencer 98765e17df Add some syntactic sugar.
llvm-svn: 34704
2007-02-27 23:47:33 +00:00
Evan Cheng a7e4b60b85 Some more code clean up.
llvm-svn: 34700
2007-02-27 22:58:43 +00:00
Evan Cheng 8a8dc04e7e Oops.
llvm-svn: 34698
2007-02-27 22:10:52 +00:00
Reid Spencer 31acef50ad Implement countLeadingOnes() and getMinSignedBits(). This helps to minimize
the bit width of negative numbers by computing the minimum bit width for a
negative value. E.g. 0x1800000000000000 could be just 0x8000000000000000

llvm-svn: 34695
2007-02-27 21:59:26 +00:00
Evan Cheng 51f54640de RegScavenger interface change to make it more flexible.
llvm-svn: 34690
2007-02-27 21:09:48 +00:00
Evan Cheng 16fd33ac5c Let MRegisterInfo owns RegScavenger.
llvm-svn: 34689
2007-02-27 21:08:07 +00:00
Evan Cheng 6b70685aa5 Pass IsImp, IsKill, and IsDead to ChangeToRegister.
llvm-svn: 34688
2007-02-27 21:06:57 +00:00
Reid Spencer 70cb5d4287 Improve APInt interface:
1. Add unsigned and signed versions of methods so a "bool" argument doesn't
   need to be passed in.
2. Make the various getMin/getMax functions all be inline since they are
   so simple.
3. Simplify sdiv and srem code.

llvm-svn: 34680
2007-02-27 20:24:31 +00:00
Reid Spencer c561bd2f18 Allow the RoundDoubleToAPInt function to specify a width to use.
llvm-svn: 34672
2007-02-27 18:22:31 +00:00
Devang Patel 28349abeab Make getPassManagerType() const.
llvm-svn: 34669
2007-02-27 15:00:39 +00:00
Chris Lattner 9f059194a7 Minor refactoring of CC Lowering interfaces
llvm-svn: 34656
2007-02-27 05:13:54 +00:00
Chris Lattner dc3adc83e7 move CC Lowering stuff to its own public interface
llvm-svn: 34655
2007-02-27 04:43:02 +00:00
Evan Cheng ca25c0ee0d forward() should not increment internal iterator. Its client may insert instruction between now and next forward() call.
llvm-svn: 34649
2007-02-27 01:58:48 +00:00
Reid Spencer b31bffed96 For PR1205:
Implement the first step towards arbitrary precision integer support in
LLVM. The APInt class provides arbitrary precision arithmetic and value
representation. This patch changes ConstantInt to use APInt as its value
representation without supporting bit widths > 64 yet. That change will
come after ConstantFolding handles bit widths > 64 bits.

llvm-svn: 34647
2007-02-26 23:54:03 +00:00
Evan Cheng bdec83e4d2 Joining an interval with a dead copy instruction. Shorten the live range to the last use.
llvm-svn: 34645
2007-02-26 21:37:37 +00:00
Reid Spencer 3d88599863 Fix indentation.
llvm-svn: 34643
2007-02-26 21:06:05 +00:00
Reid Spencer eed186ee58 1. Split getValue() into getSExtValue() and getZExtValue() to match
ConstantInt better.
2. Add a getHashValue() method.

llvm-svn: 34641
2007-02-26 20:57:12 +00:00
Reid Spencer 62530f93b3 Implement inline methods that make transition of ConstantInt to use APInt
easier to comprehend and might be useful elsewhere.

llvm-svn: 34635
2007-02-26 17:50:32 +00:00
Reid Spencer 862ee00550 Make isNegative() a const function since it doesn't modify the APInt.
llvm-svn: 34630
2007-02-26 07:45:40 +00:00
Reid Spencer 5aa8560eab Add an isNegative method to determine if the APInt's value is negative.
This is much less expensive than a test against zero.

llvm-svn: 34619
2007-02-26 01:20:59 +00:00
Chris Lattner 76ac8f82bd Rework GlobalValue::removeDeadConstantUsers to always remove dead constant
exprs hanging off a global, even if the global is not otherwise dead.  This
requires some tricky iterator gymnastics.

This implements Transforms/GlobalOpt/constantexpr-dangle.ll by deleting a
constantexpr that made it appear that the address of the function was taken.

llvm-svn: 34608
2007-02-25 21:06:13 +00:00
Reid Spencer a7bd1d0b04 Fix clearUnusedBits to not depend on "undefined behavior" of >> operator
when the bit size is equal to the word size. This happens to work out okay
on x86, but might not on other platforms. The change just detects when
there are no bits to clear (because BitWidth is a multiple of the word size)
and returns early.

Also, move some comments from .cpp file into header.

llvm-svn: 34602
2007-02-25 19:26:01 +00:00
Reid Spencer 16f043a12a Add a private constructor for efficiency.
llvm-svn: 34580
2007-02-25 07:29:03 +00:00
Reid Spencer 8fe5240289 Improve documentation.
Make divide function internal (it was briefly external for testing).

llvm-svn: 34557
2007-02-24 09:50:13 +00:00
Chris Lattner 2195fc41ec Refactor the setName stuff, moving it down the inheritance hierarchy, to
solve a crash in -instcombine -debug that was hit while investigating PR1217

llvm-svn: 34544
2007-02-24 00:55:48 +00:00
Devang Patel d3ccdfd04d Loop passes are set up to accept pointer.
llvm-svn: 34527
2007-02-23 17:53:17 +00:00
Evan Cheng c6ee20233e Temporay hook to enable register scavening for specific targets only.
llvm-svn: 34513
2007-02-23 01:07:04 +00:00
Evan Cheng 9965aebd5d Use findRegisterUseOperand to find a kill of particular register.
llvm-svn: 34512
2007-02-23 01:04:26 +00:00
Evan Cheng 956fdeb694 Initial check in of register scavenger. Its only current functionality is tracking live registers per MBB.
llvm-svn: 34511
2007-02-23 01:01:19 +00:00
Devang Patel 55c3827281 Teach LoopPass to assign itself one Loop Pass Manager.
llvm-svn: 34510
2007-02-23 00:36:57 +00:00
Devang Patel 715add3462 Add facility that allows LoopPass to re-insert a loop into
Loop Pass Manager's queue.

llvm-svn: 34509
2007-02-23 00:16:44 +00:00
Devang Patel 4e335c6c71 Add LPPassManager interface that LoopPass can use to skip
rest of the passes in the queue for a loop.

llvm-svn: 34508
2007-02-23 00:10:16 +00:00
Evan Cheng 1bce781670 Copy and paste silliness.
llvm-svn: 34507
2007-02-22 23:52:23 +00:00
Devang Patel de7d49053f Add LoopQueue. This is used by loop pass manager to manage loop nest.
llvm-svn: 34504
2007-02-22 23:30:07 +00:00
Evan Cheng cc607daac1 Remove unnecessary isKill properties if a live range has been lengthened due to coalescing.
llvm-svn: 34503
2007-02-22 23:03:39 +00:00