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23951 Commits

Author SHA1 Message Date
Duncan Sands
eb04d356e3 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
1e3fe05638 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
58130a26f4 Add two missing SINT_TO_FP libcalls. 
llvm-svn: 53460
 2008-07-11 16:57:02 +00:00
Duncan Sands
52f1dbf139 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
669d4d6909 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
cafc3d583d Document 'mask' in this calculation. 
llvm-svn: 53454
 2008-07-11 08:16:26 +00:00
Duncan Sands
94f659d6cb Align comments, colons and cases. Remove trailing 
whitespace.

llvm-svn: 53453
 2008-07-11 07:37:30 +00:00
Nick Lewycky
12c88a28f5 Remove misleading constant from comment. 
llvm-svn: 53452
 2008-07-11 07:36:19 +00:00
Nick Lewycky
8cd0f2058e 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
9f17caa9a9 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
07bfade2d4 a missed optimization that Eli spotted 
llvm-svn: 53449
 2008-07-11 06:40:29 +00:00
Chris Lattner
34b0895d4d another bug in the same line. 
llvm-svn: 53448
 2008-07-11 06:38:16 +00:00
Chris Lattner
3cdb6789b9 fix a bug spotted by Eli's eagle eyes 
llvm-svn: 53447
 2008-07-11 06:36:01 +00:00
Chris Lattner
3d40848bfd 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
d1198896ae 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
16b8ae98c1 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
f3f6b6d7af 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
20b1bde882 regenerate 
llvm-svn: 53440
 2008-07-11 00:30:39 +00:00
Chris Lattner
9dff6fbe58 Implement PR2538 
llvm-svn: 53438
 2008-07-11 00:30:06 +00:00
Chris Lattner
78d60a220b 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
5e784a8ebd make legalize types be a command line option: -enable-legalize-types. 
llvm-svn: 53434
 2008-07-10 23:37:50 +00:00
Dan Gohman
1f42b96c7e 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
d7023b66ea 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
b5d45a49ea Remove extraneous vertical whitespace before Eric gets the wrong idea ;-) 
llvm-svn: 53411
 2008-07-10 16:49:53 +00:00
Chris Lattner
5f3c587276 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
a6c09579f0 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
90a916539d 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
91912e046a Fix a FIXME: use an apint in CTTZ legalization. 
llvm-svn: 53406
 2008-07-10 15:30:54 +00:00
Duncan Sands
f2734eabf2 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
16f5ab06b0 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
a219bb03e1 Make the LegalizeType method naming scheme more regular. 
llvm-svn: 53403
 2008-07-10 15:25:04 +00:00
Duncan Sands
8afe39dc56 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
Matthijs Kooijman
ca5124a630 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
3ec3113431 - 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
26ccb8e9a8 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
65e43ae1e8 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
189609bb36 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
bb9849b7b6 Fix the build by adding a #include. 
llvm-svn: 53388
 2008-07-10 01:44:27 +00:00
Chris Lattner
6d7c5fa8dc 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
02a618dc56 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
5e57a12a80 open plugins with RTLD_GLOBAL, pointed out by Bram Adams. 
llvm-svn: 53385
 2008-07-10 00:52:20 +00:00
Chris Lattner
7797bfa0fd 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
563d2c9fac 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
6c12d086d9 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
4fbada0bef 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
80f6966c7f - 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
35080ed650 Revert r53367, which was breaking things. 
llvm-svn: 53378
 2008-07-09 23:09:10 +00:00
Dan Gohman
e10fc737ca 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
6ba50d7fc1 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
679872b05f 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
9eae9520a9 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
082f7f802e 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
a5955dc461 Add FIXME for future checking. 
llvm-svn: 53368
 2008-07-09 21:38:28 +00:00
Owen Anderson
8174cf28a3 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
be88d5cd94 Remove extra call to DW.SetModuleInfo on Linux. 
llvm-svn: 53365
 2008-07-09 21:33:15 +00:00
Dale Johannesen
02e8b93701 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
f48f4811a3 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
f6e651fcf2 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
11d39779a1 Emit debug info for data-only files. ARM version. 
llvm-svn: 53360
 2008-07-09 21:20:54 +00:00
Owen Anderson
50a64de51e 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
36a38a5ba1 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
61f4175d64 Add missed section 
llvm-svn: 53354
 2008-07-09 20:47:55 +00:00
Dale Johannesen
51c3445491 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
58912683fd Factor local liveness computation out into its own function. 
llvm-svn: 53352
 2008-07-09 20:14:53 +00:00
Dan Gohman
0975e33ffc 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
57e9182691 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
c27e4e9651 Give RegAllocSimple a TargetInstrInfo member to keep it consistent 
with RegAllocLocal.

llvm-svn: 53347
 2008-07-09 19:56:01 +00:00
Dan Gohman
ad2c9877ce 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
4d221ae533 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
67931c35bd Weak stuff always goes to coalesced sections on Darwin 
llvm-svn: 53340
 2008-07-09 19:06:02 +00:00
Dan Gohman
8a421248b9 Remove #include <iostream>. 
llvm-svn: 53333
 2008-07-09 18:08:48 +00:00
Anton Korobeynikov
2b2543166d Add FIXME needed to be resolved later 
llvm-svn: 53324
 2008-07-09 13:30:02 +00:00
Anton Korobeynikov
93fef00b0f Use only 'subset' of flags 
llvm-svn: 53323
 2008-07-09 13:29:44 +00:00
Anton Korobeynikov
32e4256260 Typo 
llvm-svn: 53322
 2008-07-09 13:29:27 +00:00
Anton Korobeynikov
d31e7ad0cf Revert accidentially added stuff 
llvm-svn: 53321
 2008-07-09 13:29:08 +00:00
Anton Korobeynikov
03614f247c First sketch of special section objects 
llvm-svn: 53320
 2008-07-09 13:28:49 +00:00
Anton Korobeynikov
395dac000b Honour text sections 
llvm-svn: 53319
 2008-07-09 13:28:19 +00:00
Anton Korobeynikov
5ad0c235f1 Use isWeakForLinker() hook 
llvm-svn: 53318
 2008-07-09 13:27:59 +00:00
Anton Korobeynikov
f16db15839 Switch to new section name handling facility 
llvm-svn: 53316
 2008-07-09 13:27:16 +00:00
Anton Korobeynikov
1f697cd97b Another bunch of hacks for named sections support 
llvm-svn: 53315
 2008-07-09 13:26:52 +00:00
Anton Korobeynikov
d0f5cb4490 Typo 
llvm-svn: 53314
 2008-07-09 13:26:24 +00:00
Anton Korobeynikov
93fe3c3fad Drop mergeable flag, if size is no suitable 
llvm-svn: 53313
 2008-07-09 13:26:05 +00:00
Anton Korobeynikov
df663a8ddf Fix several bugs in named sections handling 
llvm-svn: 53312
 2008-07-09 13:25:46 +00:00
Anton Korobeynikov
933bf0ecc4 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
f08fab0af5 Use 'gnu.linkonce', where needed 
llvm-svn: 53310
 2008-07-09 13:24:55 +00:00
Anton Korobeynikov
3bde8f2e24 Fix thinko 
llvm-svn: 53309
 2008-07-09 13:24:38 +00:00
Anton Korobeynikov
d30979695f Drop dead member reference 
llvm-svn: 53308
 2008-07-09 13:24:18 +00:00
Anton Korobeynikov
9f05fccb88 Add funny darwin section selection logic 
llvm-svn: 53307
 2008-07-09 13:23:57 +00:00
Anton Korobeynikov
751cfda7dd Handle ELF mergeable sections 
llvm-svn: 53306
 2008-07-09 13:23:37 +00:00
Anton Korobeynikov
dd347538c8 Provide section selection for X86 ELF targets 
llvm-svn: 53305
 2008-07-09 13:23:08 +00:00
Anton Korobeynikov
f42d75201a Provide general hook for section name calculation 
llvm-svn: 53304
 2008-07-09 13:22:46 +00:00
Anton Korobeynikov
c421fcddb4 Print entity size for mergeable sections 
llvm-svn: 53303
 2008-07-09 13:22:17 +00:00
Anton Korobeynikov
849c8617be Split PrintSectionFlags 
llvm-svn: 53302
 2008-07-09 13:21:49 +00:00
Anton Korobeynikov
7f21791b33 Split UniqueSectionForGlobal() 
llvm-svn: 53301
 2008-07-09 13:21:29 +00:00
Anton Korobeynikov
61aca29278 Split PreferredEHDataFormat hook 
llvm-svn: 53300
 2008-07-09 13:21:08 +00:00
Anton Korobeynikov
32d3d15c2e Split X86TargetAsmInfo into 4 subtarget-specific classes 
llvm-svn: 53299
 2008-07-09 13:20:48 +00:00
Anton Korobeynikov
80f2417e3b Whitespace cleanup 
llvm-svn: 53298
 2008-07-09 13:20:27 +00:00
Anton Korobeynikov
059999d321 Move flag decoding stuff into special hook 
llvm-svn: 53297
 2008-07-09 13:20:07 +00:00
Anton Korobeynikov
ca271dd426 Properly handle linkonce stuff 
llvm-svn: 53296
 2008-07-09 13:19:38 +00:00
Anton Korobeynikov
782a69505d 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
2b2f0a4b8f Use 'llvm-linkonce' consistently 
llvm-svn: 53294
 2008-07-09 13:18:38 +00:00
Anton Korobeynikov
5bc572ad96 Add default section name resolution routine 
llvm-svn: 53292
 2008-07-09 13:18:02 +00:00
Anton Korobeynikov
552675bb0f Constify 
llvm-svn: 53291
 2008-07-09 13:17:36 +00:00
Anton Korobeynikov
651865851c Add code for default section falgs computation 
llvm-svn: 53290
 2008-07-09 13:16:59 +00:00
Duncan Sands
e66e7b80f0 Remove some unneeded includes. 
llvm-svn: 53289
 2008-07-09 12:08:25 +00:00
Duncan Sands
828e080f3b 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
bc816b10f7 Forgot to update the chain result when softening 
loads.

llvm-svn: 53287
 2008-07-09 11:15:31 +00:00
Duncan Sands
cb4999041b 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
c8d39ae369 LegalizeTypes support for powi soft float. 
llvm-svn: 53285
 2008-07-09 11:11:47 +00:00
Duncan Sands
d5c6d06980 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
a7d102aca3 Simplify, suggested by Chris Lattner. 
llvm-svn: 53283
 2008-07-09 07:35:26 +00:00
Nick Lewycky
6341c5a7ec 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
098905497f Missed alignment argument on stores lowered from memcpy. 
llvm-svn: 53281
 2008-07-09 06:38:06 +00:00
Evan Cheng
f51c436a1b Back out 53254. It broke ppc debug info codegen. 
llvm-svn: 53280
 2008-07-09 06:36:53 +00:00
Bill Wendling
3119083ee6 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
ba6c8e3a76 Silence warning by initializing variable. 
llvm-svn: 53278
 2008-07-09 05:55:53 +00:00
Bruno Cardoso Lopes
5ed6e9e045 Fixed features usage. 
llvm-svn: 53277
 2008-07-09 05:32:22 +00:00
Nick Lewycky
38fa84fa12 Fold ((1 << a) & 1) to (a == 0). 
llvm-svn: 53276
 2008-07-09 05:20:13 +00:00
Chris Lattner
b650adae49 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
6bc83fb5de random bugfix sitting in my tree. 
llvm-svn: 53274
 2008-07-09 05:12:07 +00:00
Bruno Cardoso Lopes
2bad4772e7 Fixe typos and 80 column size problems 
llvm-svn: 53272
 2008-07-09 04:45:36 +00:00
Nick Lewycky
2a6469c9a5 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
aef7ff4c46 MipsTargetLowering cleanup 
llvm-svn: 53270
 2008-07-09 04:15:08 +00:00
Nick Lewycky
86adf455bd 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
f152c7c967 Consistently put quotes around pass names in debugging output. 
llvm-svn: 53268
 2008-07-09 00:50:40 +00:00
Devang Patel
2b56d5281d 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
2e23cd5a18 const-ify SelectionDAG::getNodeValueTypes. 
llvm-svn: 53264
 2008-07-09 00:00:42 +00:00
Dan Gohman
9f1547684c 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
286e8f7295 Verify that MachineMemOperand alignment is a non-zero power of 2. 
llvm-svn: 53262
 2008-07-08 23:47:04 +00:00
Dan Gohman
5b24b3baef 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
d90ae5127e Fix the build. Apparently MachineInstr& is no longer implicitly convertable to MachineBasicBlock::iterator. 
llvm-svn: 53260
 2008-07-08 23:36:37 +00:00
Owen Anderson
caf8cb40e8 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
d609d7166c 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
31b41acdd4 Remove some dead code. 
llvm-svn: 53253
 2008-07-08 21:53:43 +00:00
Evan Cheng
a5621a1c54 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
9255845ac7 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
a41982af51 Add missing select_cc libcall line, somehow omitted 
in LegalizeTypes.

llvm-svn: 53244
 2008-07-08 20:00:05 +00:00
Chris Lattner
6163b7a5ad improve comment 
llvm-svn: 53243
 2008-07-08 18:47:38 +00:00
Chris Lattner
c5d6ef88ff 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
c144216d78 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
Evan Cheng
6af015292e Unbreak C++ tests on x86 Darwin. 
llvm-svn: 53237
 2008-07-08 16:40:43 +00:00
Duncan Sands
f9f4389fb7 LegalizeTypes support for FP_ROUND and FP_EXTEND 
soft float.

llvm-svn: 53231
 2008-07-08 10:50:55 +00:00
Duncan Sands
65028bf60d Add some helpers for manipulating function 
parameter attributes.

llvm-svn: 53228
 2008-07-08 09:41:30 +00:00
Duncan Sands
f21350341b Pacify gcc-4.3. 
llvm-svn: 53227
 2008-07-08 09:33:14 +00:00
Duncan Sands
b854603cb5 Add some convenience methods for manipulating 
call attributes.

llvm-svn: 53223
 2008-07-08 08:38:44 +00:00
Chris Lattner
d4bcc9011b 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
Nick Lewycky
9cecc07bec Expand SCEVUDiv of power of 2 to a lshr instruction. 
llvm-svn: 53217
 2008-07-08 05:05:37 +00:00
Evan Cheng
5be1103646 Avoid unnecessary string construction during asm printing. 
llvm-svn: 53215
 2008-07-08 00:55:58 +00:00
Dan Gohman
cd25487258 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
93e0208361 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