Commit Graph

40155 Commits

Author SHA1 Message Date
Dan Gohman 3707f1daba Use find instead of lower_bound.
llvm-svn: 53474
2008-07-11 20:58:19 +00:00
Chris Lattner 9fc580f2d0 add support for returning i128, PR2532.
llvm-svn: 53472
2008-07-11 20:53:00 +00:00
Dan Gohman 0597e5b697 Trim unnecessary #includes.
llvm-svn: 53471
2008-07-11 20:38:31 +00:00
Owen Anderson 8e462e9a82 Don't call lookupNumber more than we have to.
llvm-svn: 53470
2008-07-11 20:05:13 +00:00
Duncan Sands 121641d601 Remove an apparently useless routine: there should
be no need to split the result of a vector RET node,
since they are always already legal.

llvm-svn: 53462
2008-07-11 17:02:09 +00:00
Duncan Sands 3e7d0fa3ca It is pointless to turn a UINT_TO_FP into an
SINT_TO_FP libcall plus additional operations:
it might as well be a direct UINT_TO_FP libcall.
So only turn it into an SINT_TO_FP if the target
has special handling for SINT_TO_FP.

llvm-svn: 53461
2008-07-11 17:00:14 +00:00
Duncan Sands 37b7322b35 Add two missing SINT_TO_FP libcalls.
llvm-svn: 53460
2008-07-11 16:57:02 +00:00
Duncan Sands d9948110a6 Port a shift-by-1 optimization from LegalizeDAG: it
was presumably added after the rest of the code was
copied to LegalizeTypes.

llvm-svn: 53459
2008-07-11 16:54:57 +00:00
Duncan Sands 927a3648d5 Add support for 128 bit shifts and 32 bit shifts
on 16 bit machines.

llvm-svn: 53458
2008-07-11 16:52:29 +00:00
Nick Lewycky 45e127ab20 Document 'mask' in this calculation.
llvm-svn: 53454
2008-07-11 08:16:26 +00:00
Duncan Sands 914ca2d368 Align comments, colons and cases. Remove trailing
whitespace.

llvm-svn: 53453
2008-07-11 07:37:30 +00:00
Nick Lewycky da405e1155 Remove misleading constant from comment.
llvm-svn: 53452
2008-07-11 07:36:19 +00:00
Nick Lewycky f95b64acaa Add another optimization from PR2330. Also catch some missing cases that are
similar.

llvm-svn: 53451
2008-07-11 07:20:53 +00:00
Bill Wendling 5774466a33 The frame address on an x86-64 box needs to be offset by -8, not -4.
llvm-svn: 53450
2008-07-11 07:18:52 +00:00
Chris Lattner 3994bed1a9 a missed optimization that Eli spotted
llvm-svn: 53449
2008-07-11 06:40:29 +00:00
Chris Lattner 13a6911ea2 another bug in the same line.
llvm-svn: 53448
2008-07-11 06:38:16 +00:00
Chris Lattner de89b507dd fix a bug spotted by Eli's eagle eyes
llvm-svn: 53447
2008-07-11 06:36:01 +00:00
Chris Lattner bd25b8507c simplify and merge a bunch of code. Instead of comparing against
the min/max values for an integer type, compare against the min/max
values we can prove contain the input.  This might be a tighter bound,
so this is general goodness.

llvm-svn: 53446
2008-07-11 05:40:05 +00:00
Chris Lattner 38a50c9528 fold away (x <= cst) earlier, allowing us to not have to
handle them in some code.

llvm-svn: 53445
2008-07-11 05:08:55 +00:00
Chris Lattner 6af608b8ce Fix folding of icmp's of i1 where the comparison is signed. The code
was using the algorithm for folding unsigned comparisons which is
completely wrong.  This has been broken since the signless types change.

llvm-svn: 53444
2008-07-11 04:20:58 +00:00
Chris Lattner 4fa8bb3430 Fix a bogus optimization: folding (slt (zext i1 A to i32), 1) -> (slt i1 A, true)
This cause a regression in InstCombine/JavaCompare, which was doing the right
thing on accident.  To handle the missed case, generalize the comparisons based
on masked bits a little bit to handle comparisons against the max value. For 
example, we can now xform (slt i32 (and X, 4), 4) -> (setne i32 (and X, 4), 4)

llvm-svn: 53443
2008-07-11 04:09:09 +00:00
Chris Lattner 1be09d9e21 make this condition more precise.
llvm-svn: 53442
2008-07-11 03:54:57 +00:00
Chris Lattner c9046b286b regenerate
llvm-svn: 53440
2008-07-11 00:30:39 +00:00
Chris Lattner 61622615ae Implement PR2538
llvm-svn: 53438
2008-07-11 00:30:06 +00:00
Chris Lattner 87909d0629 Fix a bug in the soft-float handling of FCOPYSIGN that Duncan noticed
when working on legalizetypes.  Both legalizetypes and legalizeops now
produce hte same code for CodeGen/ARM/fcopysign.ll.

llvm-svn: 53435
2008-07-10 23:46:13 +00:00
Chris Lattner 17b234cf9b make legalize types be a command line option: -enable-legalize-types.
llvm-svn: 53434
2008-07-10 23:37:50 +00:00
Ted Kremenek e4a6db3349 Make typedef public to make MSVC++ happy.
llvm-svn: 53433
2008-07-10 23:24:20 +00:00
Ted Kremenek 72a2d8e6b5 Make some typedefs public to make MSVC++ happy.
llvm-svn: 53432
2008-07-10 23:09:45 +00:00
Ted Kremenek 483300f96d Make typedefs in ilist public (Visual C++ errors out when they are private).
llvm-svn: 53431
2008-07-10 22:58:10 +00:00
Bill Wendling c20893b026 Pull r53428 from Gaz into mainline:
Remove warnings about unused/shadowed variables.

llvm-svn: 53430
2008-07-10 22:57:49 +00:00
Ted Kremenek 40a63884fe Added ImmutableMap constructor that accepts a const TreeTy*.
llvm-svn: 53429
2008-07-10 22:57:10 +00:00
Bill Wendling 33d58e7657 Put CPPBackend tests into their own directory and run them only if they're
supported.

llvm-svn: 53427
2008-07-10 22:35:32 +00:00
Dan Gohman 38c5ffb753 Tidy up #includes.
llvm-svn: 53426
2008-07-10 22:26:19 +00:00
Dan Gohman f50b0a0cbd Add a SubclassData field to SDNode, similar to what's done
in Value, to make use of some otherwise unused space. Use this
field to shrink LoadSDNode and StoreSDNode by moving the
addressing mode and ext/trunc fields there.

llvm-svn: 53422
2008-07-10 21:44:59 +00:00
Dan Gohman 84b6cc9cbe Fix a copy+pasto in an assertion string.
llvm-svn: 53419
2008-07-10 19:58:23 +00:00
Dan Gohman 40e1c38d2d Stack objects have nonnegative indices, not just positive indices.
llvm-svn: 53418
2008-07-10 19:57:25 +00:00
Dan Gohman 43f97716c7 Escape the graph name. This unbreaks -view-cfg.
llvm-svn: 53417
2008-07-10 19:55:54 +00:00
Dan Gohman 49eff5fbc0 Remove this file; the code that it went with is no longer
in the repository.

llvm-svn: 53416
2008-07-10 19:55:04 +00:00
Dan Gohman 7ce10037c4 Make stack slot coloring's debug output more consistent with
other passes.

llvm-svn: 53415
2008-07-10 19:49:32 +00:00
Evan Cheng 45fdeb6c3f Change StackSlotForVirtReg (which maps vregs to frame indices) from std::map to IndexedMap.
llvm-svn: 53414
2008-07-10 18:23:23 +00:00
Chris Lattner 60de1ae3d9 Remove extraneous vertical whitespace before Eric gets the wrong idea ;-)
llvm-svn: 53411
2008-07-10 16:49:53 +00:00
Chris Lattner 5e718e7431 Fix an altivec constant miscompilation that Duncan found through
his work on legalizetypes.

llvm-svn: 53410
2008-07-10 16:33:38 +00:00
Duncan Sands abdcac66dc Add support for 128 bit multiplicative operations.
Lack of these caused a bootstrap failure with Fortran
on x86-64 with LegalizeTypes turned on.  While there,
be nice to 16 bit machines and support expansion of
i32 too.

llvm-svn: 53408
2008-07-10 15:35:05 +00:00
Duncan Sands 5e6d1402c2 Add a mysteriously missing libcall, FPTOSINT_F80_I32.
Be nice to 16 bit machines by supporting FP_TO_XINT
expansion for these.

llvm-svn: 53407
2008-07-10 15:33:02 +00:00
Duncan Sands 303524be58 Fix a FIXME: use an apint in CTTZ legalization.
llvm-svn: 53406
2008-07-10 15:30:54 +00:00
Duncan Sands e78352a125 Remove PromoteIntRes_FP_ROUND - not sure what it
was doing there: FP_ROUND returns a float, not an
integer.

llvm-svn: 53405
2008-07-10 15:29:55 +00:00
Duncan Sands 4ac3984fc5 Make sure the alignment of the temporary created
in CreateStackStoreLoad is good enough for both
the source and destination types.

llvm-svn: 53404
2008-07-10 15:26:17 +00:00
Duncan Sands d4c09df689 Make the LegalizeType method naming scheme more regular.
llvm-svn: 53403
2008-07-10 15:25:04 +00:00
Duncan Sands 74f23ff45c Don't barf when dumping a constant that contains
a ginormous value (eg: i128 -1).

llvm-svn: 53402
2008-07-10 11:23:14 +00:00
Duncan Sands 4603a2ae6b Correct a comment.
llvm-svn: 53401
2008-07-10 11:21:59 +00:00
Matthijs Kooijman e0f3ab82c4 Restructure dead argument elimination, try #3 :-)
Rewrite the DeadArgumentElimination pass, to use a more explicit tracking of
dependencies between return values and/or arguments. Also make the handling of
arguments and return values the same.

The pass now looks properly inside returned structs, but only at the first
level (ie, not inside nested structs).

This version fixed a few more bugs and was cleaned up a bit. It now passes all
of LLVM's testing, and should still pass SPEC2006. There is still a minor bug
with regard to returning nested structs. Since there is currently nothing that
emits such IR, I will fix that in a seperate commit (partly because it requires
a non-trivial fix).

llvm-svn: 53400
2008-07-10 10:24:08 +00:00
Evan Cheng e9ba28dd68 - Change the horrible N^2 isRegReDefinedByTwoAddr. Now callers must supply the operand index of def machineoperand and at most one full scan of non-implicit operands is needed.
- Change local register allocator to use the new isRegReDefinedByTwoAddr instead of reinventing the wheel.

llvm-svn: 53394
2008-07-10 07:35:43 +00:00
Nick Lewycky 6193a564ab Fix overzealous optimization. Thanks to Duncan Sands for pointing out my error!
llvm-svn: 53393
2008-07-10 05:51:40 +00:00
Owen Anderson 04a77c2492 Use DenseMap instead of std::map in local register allocation. This improves the time on instcombine from .31s to .22s
llvm-svn: 53390
2008-07-10 01:56:35 +00:00
Owen Anderson 20f41dac8d Fix 403.gcc. Finally got the check for two-address-ness correct.
llvm-svn: 53389
2008-07-10 01:53:01 +00:00
Owen Anderson 36b92ca037 Fix the build by adding a #include.
llvm-svn: 53388
2008-07-10 01:44:27 +00:00
Chris Lattner 683ed3d94e The source and dest of an alias are *not* required to have the same type,
though that would be nice and make sense :).  Patch by Nathan Keynes!

llvm-svn: 53387
2008-07-10 01:09:33 +00:00
Evan Cheng 71b7398463 Fix for PR2472. Use movss to set lower 32-bits of a zero XMM vector.
llvm-svn: 53386
2008-07-10 01:08:23 +00:00
Chris Lattner 2e24e0ca68 open plugins with RTLD_GLOBAL, pointed out by Bram Adams.
llvm-svn: 53385
2008-07-10 00:52:20 +00:00
Chris Lattner d977c07680 SImplify ConstantVector::get a bit and make it turn a vector
of all undefs into a single undef value.

llvm-svn: 53384
2008-07-10 00:44:03 +00:00
Chris Lattner 67136cff7b Fix a case where vector comparison constant folding would cause an
infinite recursion.  part of PR2529

llvm-svn: 53383
2008-07-10 00:29:28 +00:00
Chris Lattner 97c661df7a add a helper method for code that wants to handle vector
constants by element without caring how they are formed.

llvm-svn: 53382
2008-07-10 00:28:34 +00:00
Chris Lattner 2105d66c05 add a helper method for code that wants to handle vector
constants by element without caring how they are formed.

llvm-svn: 53381
2008-07-10 00:28:11 +00:00
Chris Lattner b69689e18b elementwise comparison of vector constants was completely wrong. Fix
it for PR2529

llvm-svn: 53380
2008-07-10 00:08:17 +00:00
Evan Cheng 0e6973442d - Replace use of std::map<std::string, ..> with StringMap. Replace use of std::map with DenseMap, std::set with SmallPtrSet. This results in minor speed up.
- Some code clean up.

llvm-svn: 53379
2008-07-10 00:04:23 +00:00
Owen Anderson be2e9a4447 Revert r53367, which was breaking things.
llvm-svn: 53378
2008-07-09 23:09:10 +00:00
Dan Gohman 7d94c49db9 Simplify hasNUsesOfValue and hasAnyUsesOfValue even more. This
makes their special-case checks of use_size() less beneficial,
so remove them. This eliminates all but one use of use_size(),
which is in AssignTopologicalOrder, which uses it only once for
each node, and so can reasonably afford to recompute it, as
this allows the UsesSize field of SDNode to be removed
altogether.

llvm-svn: 53377
2008-07-09 23:03:14 +00:00
Dan Gohman 7a510c2990 hasAnyUseOfValue can check SDUse nodes of its users directly instead
of examining every operand of every user.

llvm-svn: 53374
2008-07-09 22:39:01 +00:00
Dan Gohman db4504fa57 Move MemoryVT out of LSBaseNode into MemSDNode, allowing the
getMemOperand function to be moved into the base class as well
and made non-virtual.

llvm-svn: 53372
2008-07-09 22:08:04 +00:00
Anton Korobeynikov 6e816424b0 Remove a FIXME: we really need to use const_data section on darwin for
constant pool, if relocation model is not static. This directly maps to
the way how GCC works.

llvm-svn: 53370
2008-07-09 21:54:26 +00:00
Evan Cheng 1787443028 Avoid creating expensive comment string if it's not going to be printed.
llvm-svn: 53369
2008-07-09 21:53:02 +00:00
Anton Korobeynikov 443864544e Add FIXME for future checking.
llvm-svn: 53368
2008-07-09 21:38:28 +00:00
Owen Anderson d3736ca1e0 Loosen our check here. Local regalloc only cares that the reg is used and def'd by the same instruction, but about the details of
the relationship.

llvm-svn: 53367
2008-07-09 21:34:36 +00:00
Dale Johannesen ca43dce1e8 Remove extra call to DW.SetModuleInfo on Linux.
llvm-svn: 53365
2008-07-09 21:33:15 +00:00
Dale Johannesen f76138c71f Emit debug info for data-only files on Cell SPU.
I cannot test this target, let me know if it breaks!

llvm-svn: 53363
2008-07-09 21:25:06 +00:00
Dale Johannesen dbd04c0783 Emit debug into for data-only files for Linux PPC.
I cannot test this target, let me know if it breaks!

llvm-svn: 53362
2008-07-09 21:24:07 +00:00
Dan Gohman 89e71d48b8 Move the IsVolatile and SVOffset fields into the MemSDNode base
class, and store IsVolatile and Alignment in a more compact form.
This makes AtomicSDNode slightly larger, but it shrinks LoadSDNode
and StoreSDNode, which are much more common and are the largest of
the SDNode subclasses. Also, this lets the isVolatile() and
getAlignment() accessors be non-virtual.

llvm-svn: 53361
2008-07-09 21:23:02 +00:00
Dale Johannesen c4650f4b56 Emit debug info for data-only files. ARM version.
llvm-svn: 53360
2008-07-09 21:20:54 +00:00
Owen Anderson b42ed21894 Don't use an expensive check for two-address-ness when we have the information sitting around to determine it much more quickly,
This speeds up the local register allocator from 0.37s to 0.31s on instcombine.

llvm-svn: 53359
2008-07-09 21:15:10 +00:00
Dale Johannesen 605d38657a Emit debug info for data-only files. This version
is X86 ATT only.

llvm-svn: 53355
2008-07-09 20:55:35 +00:00
Anton Korobeynikov bcfb41ca7d Add missed section
llvm-svn: 53354
2008-07-09 20:47:55 +00:00
Dale Johannesen b9aaddc110 Emit debug info for data-only files. This version
applies to ppc Darwin only.

llvm-svn: 53353
2008-07-09 20:43:39 +00:00
Owen Anderson a0bc522466 Factor local liveness computation out into its own function.
llvm-svn: 53352
2008-07-09 20:14:53 +00:00
Dan Gohman 70aa89d215 Reuse the MO variable instead of recomputing it in RegAllocLocal.
Keep RegAllocSimple in sync.

llvm-svn: 53351
2008-07-09 20:12:26 +00:00
Anton Korobeynikov 5c0d2bd46e Distinguish .const and .const_data on Darwin, when needed. This is somehow crazy :)
llvm-svn: 53350
2008-07-09 20:01:42 +00:00
Dan Gohman d0a33a9270 Give RegAllocSimple a TargetInstrInfo member to keep it consistent
with RegAllocLocal.

llvm-svn: 53347
2008-07-09 19:56:01 +00:00
Dan Gohman 8ab08642ee RegAllocLocal has a TargetInstrInfo data member. Use it instead
of having local variables duplicate it.

llvm-svn: 53346
2008-07-09 19:55:19 +00:00
Dan Gohman 8a95073098 Use find with std::map, when that's what's needed, instead of lower_bound
with extra checks.

llvm-svn: 53344
2008-07-09 19:51:00 +00:00
Anton Korobeynikov 92e4ac1599 Weak stuff always goes to coalesced sections on Darwin
llvm-svn: 53340
2008-07-09 19:06:02 +00:00
Dan Gohman 0acb6be89c Remove #include <iostream>.
llvm-svn: 53333
2008-07-09 18:08:48 +00:00
Anton Korobeynikov dad7a35acf Testcase for PR2024
llvm-svn: 53327
2008-07-09 14:09:41 +00:00
Anton Korobeynikov 86e706d448 Silence a warning
llvm-svn: 53326
2008-07-09 13:56:43 +00:00
Anton Korobeynikov decb136538 Drop enum and use constants for SectionFlags
llvm-svn: 53325
2008-07-09 13:41:07 +00:00
Anton Korobeynikov ee09e66a01 Add FIXME needed to be resolved later
llvm-svn: 53324
2008-07-09 13:30:02 +00:00
Anton Korobeynikov 56827c1b60 Use only 'subset' of flags
llvm-svn: 53323
2008-07-09 13:29:44 +00:00
Anton Korobeynikov d5cf47d853 Typo
llvm-svn: 53322
2008-07-09 13:29:27 +00:00
Anton Korobeynikov d62b4f5b37 Revert accidentially added stuff
llvm-svn: 53321
2008-07-09 13:29:08 +00:00
Anton Korobeynikov daee281590 First sketch of special section objects
llvm-svn: 53320
2008-07-09 13:28:49 +00:00
Anton Korobeynikov 03dc8bf4d6 Honour text sections
llvm-svn: 53319
2008-07-09 13:28:19 +00:00
Anton Korobeynikov 577c45dd74 Use isWeakForLinker() hook
llvm-svn: 53318
2008-07-09 13:27:59 +00:00
Anton Korobeynikov deaa37362a Unbreak
llvm-svn: 53317
2008-07-09 13:27:37 +00:00
Anton Korobeynikov fe047d241c Switch to new section name handling facility
llvm-svn: 53316
2008-07-09 13:27:16 +00:00
Anton Korobeynikov 3d3d12f431 Another bunch of hacks for named sections support
llvm-svn: 53315
2008-07-09 13:26:52 +00:00
Anton Korobeynikov 4f125b7217 Typo
llvm-svn: 53314
2008-07-09 13:26:24 +00:00
Anton Korobeynikov 9da4fd0f2e Drop mergeable flag, if size is no suitable
llvm-svn: 53313
2008-07-09 13:26:05 +00:00
Anton Korobeynikov 13b9a22fb0 Fix several bugs in named sections handling
llvm-svn: 53312
2008-07-09 13:25:46 +00:00
Anton Korobeynikov 60919583b3 Add hacky way to distinguish named and named sections. This will be generalized in the future.
llvm-svn: 53311
2008-07-09 13:25:26 +00:00
Anton Korobeynikov d789b7c196 Use 'gnu.linkonce', where needed
llvm-svn: 53310
2008-07-09 13:24:55 +00:00
Anton Korobeynikov 7504c283f2 Fix thinko
llvm-svn: 53309
2008-07-09 13:24:38 +00:00
Anton Korobeynikov e1a65bcda1 Drop dead member reference
llvm-svn: 53308
2008-07-09 13:24:18 +00:00
Anton Korobeynikov 1e4dc36be4 Add funny darwin section selection logic
llvm-svn: 53307
2008-07-09 13:23:57 +00:00
Anton Korobeynikov 908998f071 Handle ELF mergeable sections
llvm-svn: 53306
2008-07-09 13:23:37 +00:00
Anton Korobeynikov 4c37c3ad5b Provide section selection for X86 ELF targets
llvm-svn: 53305
2008-07-09 13:23:08 +00:00
Anton Korobeynikov 9d6939b5fc Provide general hook for section name calculation
llvm-svn: 53304
2008-07-09 13:22:46 +00:00
Anton Korobeynikov 94ff6f02ef Print entity size for mergeable sections
llvm-svn: 53303
2008-07-09 13:22:17 +00:00
Anton Korobeynikov 4e4f3168dd Split PrintSectionFlags
llvm-svn: 53302
2008-07-09 13:21:49 +00:00
Anton Korobeynikov cf638bfaac Split UniqueSectionForGlobal()
llvm-svn: 53301
2008-07-09 13:21:29 +00:00
Anton Korobeynikov d947aa838c Split PreferredEHDataFormat hook
llvm-svn: 53300
2008-07-09 13:21:08 +00:00
Anton Korobeynikov 9a6ed374f8 Split X86TargetAsmInfo into 4 subtarget-specific classes
llvm-svn: 53299
2008-07-09 13:20:48 +00:00
Anton Korobeynikov 84fd5698f3 Whitespace cleanup
llvm-svn: 53298
2008-07-09 13:20:27 +00:00
Anton Korobeynikov 2633a040a3 Move flag decoding stuff into special hook
llvm-svn: 53297
2008-07-09 13:20:07 +00:00
Anton Korobeynikov ab778022d5 Properly handle linkonce stuff
llvm-svn: 53296
2008-07-09 13:19:38 +00:00
Anton Korobeynikov 7680198798 Provide skeletone code for calculation of section, where global should be emitted into
llvm-svn: 53295
2008-07-09 13:19:08 +00:00
Anton Korobeynikov 3ee57868a5 Use 'llvm-linkonce' consistently
llvm-svn: 53294
2008-07-09 13:18:38 +00:00
Anton Korobeynikov 0bf332476a Make hooks virtual
llvm-svn: 53293
2008-07-09 13:18:21 +00:00
Anton Korobeynikov 21539c6d1e Add default section name resolution routine
llvm-svn: 53292
2008-07-09 13:18:02 +00:00
Anton Korobeynikov aab504fb19 Constify
llvm-svn: 53291
2008-07-09 13:17:36 +00:00
Anton Korobeynikov 9e4ab5023a Add code for default section falgs computation
llvm-svn: 53290
2008-07-09 13:16:59 +00:00
Duncan Sands 37ab611e8e Remove some unneeded includes.
llvm-svn: 53289
2008-07-09 12:08:25 +00:00
Duncan Sands 5e266c914a Redo LegalizeTypes soft float support for
SINT_TO_FP and UINT_TO_FP.  This now produces
the same code as LegalizeDAG (the previous
code was based on a mistaken idea of what
LegalizeDAG did in this case).

llvm-svn: 53288
2008-07-09 12:07:22 +00:00
Duncan Sands b9e63db718 Forgot to update the chain result when softening
loads.

llvm-svn: 53287
2008-07-09 11:15:31 +00:00
Duncan Sands ed811f0ec1 LegalizeTypes soft float support for FP_TO_SINT and
FP_TO_UINT.

llvm-svn: 53286
2008-07-09 11:13:46 +00:00
Duncan Sands 8090f8576f LegalizeTypes support for powi soft float.
llvm-svn: 53285
2008-07-09 11:11:47 +00:00
Duncan Sands c52d3bf646 Make the role of MVT::i32 clearer here, and add a
note since it is not clear whether it is correct.

llvm-svn: 53284
2008-07-09 08:07:41 +00:00
Nick Lewycky bb89c2a3f6 Simplify, suggested by Chris Lattner.
llvm-svn: 53283
2008-07-09 07:35:26 +00:00
Nick Lewycky f9c27c343a Fold (a < 8) && (b < 8) into (a|b) < 8 for unsigned less or greater than.
llvm-svn: 53282
2008-07-09 07:29:11 +00:00
Evan Cheng 7898e98026 Missed alignment argument on stores lowered from memcpy.
llvm-svn: 53281
2008-07-09 06:38:06 +00:00
Evan Cheng 49c8e68e4c Back out 53254. It broke ppc debug info codegen.
llvm-svn: 53280
2008-07-09 06:36:53 +00:00
Bill Wendling 88d2506ae2 Make the DICountVisitor not a visitor. This keeps us from calling virtual
functions and junk.

llvm-svn: 53279
2008-07-09 06:02:33 +00:00
Bill Wendling a2279686cf Silence warning by initializing variable.
llvm-svn: 53278
2008-07-09 05:55:53 +00:00
Bruno Cardoso Lopes bcc2139ba6 Fixed features usage.
llvm-svn: 53277
2008-07-09 05:32:22 +00:00
Nick Lewycky 364661c43e Fold ((1 << a) & 1) to (a == 0).
llvm-svn: 53276
2008-07-09 05:20:13 +00:00
Chris Lattner a660f4bb07 Add a little wrapper header that is put around bc files when emitting
bc files for modules with a target triple that indicates they are for
darwin.  The reader unconditionally handles this, and the writer could
turn this on for more targets if we care.

This change has two benefits for darwin:

1) it allows us to encode the cpu type of the file in an easy to read
   place that doesn't require decoding the bc file.
2) it works around a bug (IMO) in darwin's AR where it is incapable of
   handling files that are not a multiple of 8 bytes long.  BC files
   are only guaranteed to be multiples of 4 bytes long.

llvm-svn: 53275
2008-07-09 05:14:23 +00:00
Chris Lattner 304deea9e6 random bugfix sitting in my tree.
llvm-svn: 53274
2008-07-09 05:12:07 +00:00
Chris Lattner 7212e2014c Fix a broken test. Neither load is eliminable without changing the CFG.
llvm-svn: 53273
2008-07-09 05:01:02 +00:00
Bruno Cardoso Lopes 7ceec57703 Fixe typos and 80 column size problems
llvm-svn: 53272
2008-07-09 04:45:36 +00:00
Nick Lewycky 0d3645e673 Reduce x - y to -y when we know the 'x' part will get masked off anyways.
llvm-svn: 53271
2008-07-09 04:32:37 +00:00
Bruno Cardoso Lopes a6ce3cee2f MipsTargetLowering cleanup
llvm-svn: 53270
2008-07-09 04:15:08 +00:00
Nick Lewycky b36bd47419 Remove getValueRange from SCEV. It wasn't doing anything there anyways, and a
more complete version is now available from the LoopVR pass.

llvm-svn: 53269
2008-07-09 03:21:51 +00:00
Dan Gohman 1526985bac Consistently put quotes around pass names in debugging output.
llvm-svn: 53268
2008-07-09 00:50:40 +00:00
Devang Patel 51cbf928ab If loop induction variable's start value is less then its exit value then do not split the loop.
llvm-svn: 53265
2008-07-09 00:12:01 +00:00
Dan Gohman 919936815e const-ify SelectionDAG::getNodeValueTypes.
llvm-svn: 53264
2008-07-09 00:00:42 +00:00
Dan Gohman f188fa4499 It's no longer necessary to test if a MachineBasicBlock's
parent is non-null. It now always is.

llvm-svn: 53263
2008-07-08 23:59:09 +00:00
Dan Gohman 8293650d90 Verify that MachineMemOperand alignment is a non-zero power of 2.
llvm-svn: 53262
2008-07-08 23:47:04 +00:00
Dan Gohman e8d8d2ea42 Factor out the code for computing an alignment value, and make it
available to getAtomic in addition to just getLoad and getStore,
to prevent MachineMemOperands with 0 alignment.

llvm-svn: 53261
2008-07-08 23:46:32 +00:00
Owen Anderson 27b8a21dfd Fix the build. Apparently MachineInstr& is no longer implicitly convertable to MachineBasicBlock::iterator.
llvm-svn: 53260
2008-07-08 23:36:37 +00:00
Dan Gohman cb2ec30ef6 The graph name really does matter for configurations that use gv.
llvm-svn: 53259
2008-07-08 23:33:46 +00:00
Owen Anderson 45d4475fe5 Make the local register allocator compute (purely local) liveness information for itself
rather than depending on LiveVariables.  This decreases compile time from:
0.5909s (LV + Regalloc) to 0.421s (just regalloc).

llvm-svn: 53256
2008-07-08 22:24:50 +00:00
Dale Johannesen 07f5db0318 Testcase for debug info from data-only files.
This one is x86-32-Darwin specific.

llvm-svn: 53255
2008-07-08 21:57:56 +00:00
Dale Johannesen b9097a71d4 Make debug info come out in data-only files.
This is a question of the debugging setup code not
being called at the right time, and it's called from
target-dependent code for some reason.  I have only
attempted to fix Darwin, but I'm pretty sure it's
broken elsewhere; I'll leave that to people who can
test it.

llvm-svn: 53254
2008-07-08 21:56:22 +00:00
Dale Johannesen 45a4ec1a27 Remove some dead code.
llvm-svn: 53253
2008-07-08 21:53:43 +00:00
Nick Kledzik c232347cb8 fix dangling pointer and argv off by one errors. Add support for --disable-inlining
llvm-svn: 53249
2008-07-08 21:14:10 +00:00
Evan Cheng 34ef1db87c Do not CSE DEBUG_LOC, DBG_LABEL, DBG_STOPPOINT, DECLARE, and EH_LABEL SDNode's. This improves compile time slightly at -O0 -g.
llvm-svn: 53246
2008-07-08 20:06:39 +00:00
Duncan Sands 0797e5bf05 Remove custom expansion from LegalizeTypes when doing
soft float: experiments show that targets aren't
expecting this for results or for operands.  Add
support select/select_cc result soft float and
correct operand soft float for these.

llvm-svn: 53245
2008-07-08 20:03:24 +00:00
Duncan Sands 360d689db3 Add missing select_cc libcall line, somehow omitted
in LegalizeTypes.

llvm-svn: 53244
2008-07-08 20:00:05 +00:00
Chris Lattner 350e41760a improve comment
llvm-svn: 53243
2008-07-08 18:47:38 +00:00
Chris Lattner 4f1a9ffc09 'Optimize' test
llvm-svn: 53242
2008-07-08 18:33:33 +00:00
Chris Lattner 2528d63ba7 Add a new hidden option to the interpreter to cause it to print
out every volatile load and store.  This is useful for tracking 
down insane volatile memory bugs.

llvm-svn: 53241
2008-07-08 17:25:49 +00:00
Chris Lattner 501d78fdc0 Fix PR2496, a really nasty bug which involved sinking volatile loads
into phis.  This is actually the same bug as PR2262 /
2008-04-29-VolatileLoadDontMerge.ll, but I missed checking the first 
predecessor for multiple successors.  Testcase here:
InstCombine/2008-07-08-VolatileLoadMerge.ll

llvm-svn: 53240
2008-07-08 17:18:32 +00:00
Chris Lattner 855d2c38ec new testcase for PR2496
llvm-svn: 53239
2008-07-08 17:18:05 +00:00
Evan Cheng 0a1e672dff Unbreak C++ tests on x86 Darwin.
llvm-svn: 53237
2008-07-08 16:40:43 +00:00
Owen Anderson c76bacbffb Global variables beginning with \01 have special meaning on Darwin, so we need to remove
the name prefix when we change them from internal to external.  This allows bugpointing
of codegen miscompilations to work more reliably on Darwin.

llvm-svn: 53236
2008-07-08 16:38:42 +00:00
Duncan Sands 12525efdfc LegalizeTypes support for FP_ROUND and FP_EXTEND
soft float.

llvm-svn: 53231
2008-07-08 10:50:55 +00:00
Duncan Sands acf0189b4b Testcase for PR2520.
llvm-svn: 53230
2008-07-08 10:11:36 +00:00
Duncan Sands 66336db096 Add some helpers for manipulating function
parameter attributes.

llvm-svn: 53228
2008-07-08 09:41:30 +00:00
Duncan Sands 441080f7f2 Pacify gcc-4.3.
llvm-svn: 53227
2008-07-08 09:33:14 +00:00
Duncan Sands 825bde45cc Note that 'nest' only applies to pointers.
llvm-svn: 53226
2008-07-08 09:27:25 +00:00
Matthijs Kooijman 328494c428 Add CallSite::getArgumentNo() to be able to translate an operand number into a
argument number.

llvm-svn: 53225
2008-07-08 08:51:47 +00:00
Matthijs Kooijman ea017c77ff Add CallSite::getArgumentOffset() to hide the differences in operands betwen
Call and Invoke in a single method instead of having it hardcoded in multiple
places.

llvm-svn: 53224
2008-07-08 08:50:32 +00:00
Duncan Sands 78c8872d87 Add some convenience methods for manipulating
call attributes.

llvm-svn: 53223
2008-07-08 08:38:44 +00:00
Chris Lattner d137a08b0d Fix three bugs:
1) evaluate [v]fcmp true/false with undefs to true or false instead
   of undef.
2) fix vector comparisons with undef to return a vector result instead 
   of i1
3) fix vector comparisons with evaluatable results to return vector
   true/false instead of i1 true/false (PR2529)

llvm-svn: 53220
2008-07-08 05:46:34 +00:00
Chris Lattner fc12d2e5f3 clarify :)
llvm-svn: 53218
2008-07-08 05:12:37 +00:00
Nick Lewycky 3c947045ef Expand SCEVUDiv of power of 2 to a lshr instruction.
llvm-svn: 53217
2008-07-08 05:05:37 +00:00
Evan Cheng 534952224c Avoid unnecessary string construction during asm printing.
llvm-svn: 53215
2008-07-08 00:55:58 +00:00
Nick Kledzik 7c6f23fb9d add _lto_codegen_debug_options so that linker can use it
llvm-svn: 53213
2008-07-07 23:24:06 +00:00
Dan Gohman 3b46030375 Pool-allocation for MachineInstrs, MachineBasicBlocks, and
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
2008-07-07 23:14:23 +00:00
Dan Gohman 7f8b6d5f80 Pool-allocation for SDNodes. The pool is allocated once for each function,
and reused across SelectionDAGs.

This drastically reduces the number of calls to malloc/free made during
instruction selection, and improves memory locality.

llvm-svn: 53211
2008-07-07 23:02:41 +00:00
Dan Gohman e5932e5a3d Add some basic Pool-allocation infrastructure. This adds a Recycler class,
for handling bookkeeping for deleted objects, as well as the alist class
template, for keeping lists of objects allocated from Recyclers, and some
related utilities.

llvm-svn: 53210
2008-07-07 22:58:06 +00:00
Evan Cheng 0189604b0a Clean up PPC register specification.
llvm-svn: 53209
2008-07-07 22:22:07 +00:00
Evan Cheng 90a92af176 ATT asm printer just print register AsmName's instead of calling tolower on each charater of Name. This speeds it up by 10%.
llvm-svn: 53208
2008-07-07 22:21:06 +00:00
Evan Cheng 4a898c0b11 TargetRegisterDesc::Name field is the same as the abstract register name. There is no need for targets to specify register names in addition to their AsmName's.
llvm-svn: 53207
2008-07-07 22:19:41 +00:00
Bill Wendling b46e5165bf Use the canonical way to get an empty structure.
llvm-svn: 53206
2008-07-07 21:41:57 +00:00
Dan Gohman d6ec05077f Refactor the tablegen DAGISelEmitter code for outputing calls to
getTargetNode and SelectNodeTo to reduce duplication, and to
make some of the getTargetNode code available to SelectNodeTo.
Use SelectNodeTo instead of getTargetNode in several new
interesting cases, as it mutates nodes in place instead of
creating new ones.

This triggers some scheduling behavior differences due to nodes
being presented to the scheduler in a different order. Some of the
arbitrary scheduling decisions it makes are now arbitrarily made
differently. This is visible in CodeGen/PowerPC/LargeAbsoluteAddr.ll,
where a trivial scheduling difference led to a trivial register
allocation difference.

llvm-svn: 53203
2008-07-07 21:00:17 +00:00
Bill Wendling 1214860a78 Use StringMap for greater justice!
llvm-svn: 53202
2008-07-07 20:59:31 +00:00
Dan Gohman 9169763955 Fix SDNode::MorphNodeTo (a function used by by SelectNodeTo) to
properly track dead nodes that are on the original SDNode's operand
list but not the new one, and have no other uses.

llvm-svn: 53201
2008-07-07 20:57:48 +00:00
Dan Gohman aedb4a61b8 Move MachineMemOperand's constructor out of line, to avoid a
#include dependency on Support/MathExtras.h in the header file.

llvm-svn: 53200
2008-07-07 20:32:02 +00:00
Dan Gohman 230263c63e Simplify this use of BuildMI. This is also in preparation for
pool-allocating MachineInstrs.

llvm-svn: 53198
2008-07-07 20:09:12 +00:00
Dan Gohman 14464bc61c Use of operator* is redundant and confusing here.
llvm-svn: 53197
2008-07-07 20:08:05 +00:00
Dan Gohman c7fc432b19 Minor const-correctness fixes.
llvm-svn: 53196
2008-07-07 20:06:06 +00:00
Dan Gohman 75f9b72bfc Shrink MachineMemOperand by storing the alignment in log form
and rearranging the fields.

llvm-svn: 53195
2008-07-07 20:05:04 +00:00