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39475 Commits

Author SHA1 Message Date
Devang Patel
e4acff8720 Revert 106528. It is causing self host failures. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106529 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-22 06:14:09 +00:00
Devang Patel
52e0612f7d Do not rely on DenseMap slot which can be easily invalidated when DenseMap grows. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106528 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-22 05:16:56 +00:00
Bob Wilson
ec68864877 Revert my change to clone named metadata. Buildbots are complaining. 
--- Reverse-merging r106508 into '.':
U    lib/Transforms/Utils/CloneModule.cpp


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106521 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-22 02:08:51 +00:00
Dan Gohman
cc1ca987f3 When unfolding a load, avoid assuming which instruction that 
kill and dead flags will end up on.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106520 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-22 02:07:21 +00:00
Devang Patel
a762b09310 Use single interface, using twine, to get named metadata. 
getNamedMetadata().


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106518 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-22 01:19:38 +00:00
Evan Cheng
4d54e5b2dd Tail merging pass shall not break up IT blocks. rdar://8115404 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106517 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-22 01:18:16 +00:00
Devang Patel
7e1d742e1a Discard special LLVM prefix from linkage name. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106516 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-22 01:06:05 +00:00
Devang Patel
d1bbc6b70e Do not rely on Twine temporaries to survive. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106515 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-22 01:01:58 +00:00
Chris Lattner
ceea301c1d make sure to initialize indent_level 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106513 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-22 00:40:26 +00:00
Dan Gohman
7aa7bc735d Fix the new load-unfolding code to update LiveVariable's dead flags, 
in addition to the kill flags.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106512 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-22 00:32:04 +00:00
Bob Wilson
e42f493f4c Include named metadata when cloning a module. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106508 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-22 00:11:03 +00:00
Chris Lattner
3284877064 add some support for blockaddress. This isn't really enough to be useful, 
but it will cover uses of blockaddress that are actually in a function.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106502 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-21 23:19:36 +00:00
Chris Lattner
1018c24c13 eliminate a mutable global variable, use raw_ostream::indent instead of 
rolling our own.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106501 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-21 23:14:47 +00:00
Chris Lattner
7e6d7451ae un-indent a huge amount of code out of an anonymous namespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106500 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-21 23:12:56 +00:00
Bruno Cardoso Lopes
c27d1e4d17 revert r106482 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106499 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-21 22:59:03 +00:00
Dan Gohman
584fedf188 Teach two-address lowering how to unfold a load to open up commuting 
opportunities. For example, this lets it emit this:

   movq (%rax), %rcx
   addq %rdx, %rcx

instead of this:

   movq %rdx, %rcx
   addq (%rax), %rcx

in the case where %rdx has subsequent uses. It's the same number
of instructions, and usually the same encoding size on x86, but
it appears faster, and in general, it may allow better scheduling
for the load.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106493 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-21 22:17:20 +00:00
Bruno Cardoso Lopes
b7cc3f6ae6 change parameter name to avoid confusion with global definition 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106486 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-21 21:28:07 +00:00
Bob Wilson
56a1a69a35 sign_extend_inreg needs to be expanded for pre-v6 Thumb as well as ARM. 
Radar 8104310.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106484 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-21 21:27:34 +00:00
Jim Grosbach
a967d1121a LEApcrelJT shouldn't be marked as neverHasSideEffects, as we don't want it 
being moved around away from the jump table it references. rdar://8104340

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106483 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-21 21:27:27 +00:00
Bruno Cardoso Lopes
b44e8b2d11 Add unpack and interleave AVX instructions, encoding tests cooming soon 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106482 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-21 21:21:48 +00:00
Evan Cheng
d95ea2da28 Fix PR7421: bug in kill transferring logic. It was ignoring loads / stores which have already been processed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106481 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-21 21:21:14 +00:00
Chris Lattner
61abd7b395 "This is just a cosmetic change in MCAsmStreamer.cpp/EmitSymbolAttribute: all attributes have now a \t before and after, as done for '.type'. 
This makes the output look consistent, as well as help some third party assemblers expecting the attributes to be in the second column."

Patch by Arnaud de Grandmaison!



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106469 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-21 20:35:01 +00:00
Eric Christopher
be4e066ff9 Remove isTwoAddress from SystemZ. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106467 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-21 20:25:57 +00:00
Eric Christopher
c63a404d56 Remove isTwoAddress from Sparc. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106466 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-21 20:22:35 +00:00
Eric Christopher
c452d79c43 Remove isTwoAddress from Mips. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106465 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-21 20:19:21 +00:00
Eric Christopher
b82a7ea1b2 Remove isTwoAddress from Blackfin. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106457 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-21 20:13:37 +00:00
Eric Christopher
f704408bf7 Remove isTwoAddress from MSP430. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106455 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-21 20:07:30 +00:00
Dan Gohman
403a8cdda5 Use A.append(...) instead of A.insert(A.end(), ...) when A is a 
SmallVector, and other SmallVector simplifications.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106452 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-21 19:47:52 +00:00
Eric Christopher
658ebcc7ec Make 80-column. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106448 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-21 18:56:55 +00:00
Eric Christopher
90301312d5 Remove isTwoAddress from PIC16. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106447 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-21 18:55:01 +00:00
Eric Christopher
4a232f0836 Remove isTwoAddress from XCore. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106446 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-21 18:51:38 +00:00
Eric Christopher
23265d0054 Remove isTwoAddress from Alpha. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106445 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-21 18:48:55 +00:00
Dan Gohman
e407c1d158 Move several non-performance-critical member functinos out of line. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106444 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-21 18:46:45 +00:00
Devang Patel
10de3bb4fd Do not directly use function names to construct new name for named metadata. 
"llvm.dbg.lv.~A" is not a valid name.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106438 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-21 18:36:58 +00:00
Bruno Cardoso Lopes
c79e43aee3 Move part of SSE 1 & 2 compare, shuffle and unpack instructions closely. Preparing them for refactoring and to the addition of their AVX forms 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106437 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-21 18:36:04 +00:00
Bruno Cardoso Lopes
59bb6fae9a Add AVX regular (non-aliased ones) and,or,xor,andn packed instructions. They are already tested in the MC framework, no test needed 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106436 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-21 18:22:54 +00:00
Dale Johannesen
b0ccb757b3 Fix PR 7433. Silly typo in non-Darwin ARM tail call 
handling, plus correct R9 handling in that mode.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106434 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-21 18:21:49 +00:00
Eric Christopher
18fb00b4b9 Add some codegen patterns for x86_64-linux-gnu tls codegen matching. 
Based on a patch by Patrick Marlier!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106433 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-21 18:21:27 +00:00
Jim Grosbach
9cfcfeb24b early exit for dbg_value instructions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106430 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-21 17:49:23 +00:00
Chris Lattner
9e13715fd5 remove some dead variables reported by clang++ 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106428 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-21 17:20:18 +00:00
Dan Gohman
c7bd7b7f12 Revert r106422, which is breaking the non-fast-isel path. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106423 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-21 16:02:28 +00:00
Dan Gohman
faeb0e7448 More changes for non-top-down fast-isel. 
Split the code for materializing a value out of
SelectionDAGBuilder::getValue into a helper function, so that it can
be used in other ways. Add a new getNonRegisterValue function which
uses it, for use in code which doesn't want a CopyFromReg even
when FuncMap.ValueMap already has an entry for it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106422 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-21 15:13:54 +00:00
Kalle Raiskila
951b229ccf Mark the SPU 'lr' instruction to never have side effects. 
This allows the fast regiser allocator to remove redundant 
register moves.
Update a set of tests that depend on the register allocator
to be linear scan. 


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106420 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-21 15:08:16 +00:00
Kalle Raiskila
91fdee125c Fix the lowering of VECTOR_SHUFFLE on SPU to handle splats. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106419 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-21 14:42:19 +00:00
Dan Gohman
3193a689db Do one lookup instead of two. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106415 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-21 14:21:47 +00:00
Dan Gohman
37db6cdaea Generalize this to look in the regular ValueMap in addition to 
the LocalValueMap, to make it more flexible when fast-isel isn't
proceding straight top-down.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106414 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-21 14:17:46 +00:00
Rafael Espindola
c2b3e00cdf Fix an unintentional commit. I think I typed "git svn dcommit" in the wrong branch. 
I was trying to do some refactoring on the copyRegToReg, but this is realyl a work in progress and not generally useful yet.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106413 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-21 13:31:32 +00:00
Kalle Raiskila
4794807134 Fix lowering of VECTOR_SHUFFLE on SPU. Old algorithm 
used to choke llc with the attached test.
 


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106411 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-21 10:17:36 +00:00
Rafael Espindola
f0efafa61e wip 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106408 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-21 02:17:34 +00:00
Nick Lewycky
2a3ee5e8e9 Fix warning in no-asserts build. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106405 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-20 20:27:42 +00:00
Evan Cheng
859df5e9f9 Fix a crash caused by dereference of MBB.end(). rdar://8110842 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106399 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-20 00:54:38 +00:00
Dan Gohman
6f5fed253f Restore a call to rememberInstruction which was accidentally dropped 
in refactoring.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106398 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-19 22:50:35 +00:00
Dan Gohman
74e5ef096e Add a TODO comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106397 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-19 21:30:18 +00:00
Dan Gohman
1e3121c80a Include the use kind along with the expression in the key of the 
use sharing map. The reconcileNewOffset logic already forces a
separate use if the kinds differ, so incorporating the kind in the
key means we can track more sharing opportunities.

More sharing means fewer total uses to track, which means smaller
problem sizes, which means the conservative throttles don't kick
in as often.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106396 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-19 21:29:59 +00:00
Dan Gohman
b6211710ac Don't include things in anonymous namespaces that don't need it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106395 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-19 21:21:39 +00:00
Benjamin Kramer
6118efa59e Use calloc instead of new/memset, it is more efficient when the set is very large. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106390 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-19 17:00:31 +00:00
Dan Gohman
b92654d9c9 Fix ScalarEvolution's "exhaustive" trip count evaluation code to avoid 
assuming that loops are in canonical form, as ScalarEvolution doesn't
depend on LoopSimplify itself. Also, with indirectbr not all loops can
be simplified. This fixes PR7416.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106389 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-19 14:17:24 +00:00
Dan Gohman
485c43fc47 Factor out duplicated code for reusing and inserting casts into 
a helper function.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106388 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-19 13:25:23 +00:00
Bob Wilson
54eee524f1 Tidy. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106383 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-19 05:33:57 +00:00
Bob Wilson
31ef8e6663 Remove a fixme comment that is no longer relevant. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106382 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-19 05:32:41 +00:00
Bob Wilson
dc076da4d2 Fix error message to match function name. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106381 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-19 05:32:09 +00:00
Bruno Cardoso Lopes
f6ff003043 Refactoring of regular logical packed instructions to prepare for AVX ones. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106375 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-19 04:09:22 +00:00
Bruno Cardoso Lopes
f4f4bad696 Refactor aliased packed logical instructions, also add 
AVX AND,OR,XOR,NAND{P}{S,D}{rr,rm} instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106374 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-19 02:44:01 +00:00
Evan Cheng
02ba9e19c7 Ignore dbg_value's. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106373 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-19 02:36:21 +00:00
Bruno Cardoso Lopes
1e8d06282f Move new sse 1 & 2 generic classes to a more appropriate place 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106372 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-19 01:32:46 +00:00
Bruno Cardoso Lopes
efc9b69deb Remove unnecessary arguments 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106371 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-19 01:22:34 +00:00
Bruno Cardoso Lopes
17227db062 Add AVX packed intrinsics for MIN, MAX 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106370 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-19 01:17:05 +00:00
Evan Cheng
0110ac66eb Disable sibcall optimization for Thumb1 for now since Thumb1RegisterInfo::emitEpilogue is not expecting them. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106368 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-19 01:01:32 +00:00
Eric Christopher
a938cfb13a Finish ripping isTwoAddress out of X86. Some mindless formatting 
and operand renaming to help.

The giant turn the constraints on and selectively turn it off
should probably be inverted at some point since it's just largely
50/50.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106367 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-19 00:37:40 +00:00
Bruno Cardoso Lopes
be4d595afd Shrink down code and add for free AVX {MIN,MAX}P{S,D}{rm,rr} instructions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106366 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-19 00:37:31 +00:00
Chris Lattner
617e595022 rip out dead code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106365 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-19 00:34:14 +00:00
Chris Lattner
1cf44fc051 fix rdar://7873482 by teaching the instruction encoder to emit 
segment prefixes.  Daniel wrote most of this patch.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106364 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-19 00:34:00 +00:00
Evan Cheng
6523d2ff7f Indentation and remove dead code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106362 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-19 00:11:54 +00:00
Bruno Cardoso Lopes
fda1acb389 Clean up: remove now unnecessary Constraints 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106361 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-19 00:09:27 +00:00
Dan Gohman
9559e3b99a Silence compiler warnings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106360 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-19 00:02:06 +00:00
Bruno Cardoso Lopes
c82f199892 more refactoring! yay! big win over the intrinsics 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106359 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-19 00:00:22 +00:00
Eric Christopher
96ab7f494d Remove isTwoAddress from here too. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106358 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 23:56:07 +00:00
Bruno Cardoso Lopes
ccf30bd984 Fix typo, SSE1 should be used by XS, not SSE2 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106357 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 23:53:27 +00:00
Eric Christopher
f6bc0b9d4b Remove isTwoAddress from 64-bit files. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106356 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 23:51:21 +00:00
Evan Cheng
96c3da6436 Move ARM if-conversion before post-ra scheduling. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106355 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 23:32:07 +00:00
Dan Gohman
db4971259c Teach regular and fast isel to set dead flags on unused implicit defs 
on calls and similar instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106353 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 23:28:01 +00:00
Bruno Cardoso Lopes
8af5ed9e15 Apply some refactor to packed instructions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106349 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 23:13:35 +00:00
Evan Cheng
3ee608c5aa Update cmake list. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106348 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 23:12:10 +00:00
Evan Cheng
886459456c Thumb2 hazard recognizer. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106347 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 23:11:35 +00:00
Jakob Stoklund Olesen
fe181f4848 Only run CoalesceExtSubRegs when we can expect LiveIntervalAnalysis to clean up 
the inserted INSERT_SUBREGs after us.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106345 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 23:10:20 +00:00
Evan Cheng
86050dc8cc Allow ARM if-converter to be run after post allocation scheduling. 
- This fixed a number of bugs in if-converter, tail merging, and post-allocation
  scheduler. If-converter now runs branch folding / tail merging first to
  maximize if-conversion opportunities.
- Also changed the t2IT instruction slightly. It now defines the ITSTATE
  register which is read by instructions in the IT block.
- Added Thumb2 specific hazard recognizer to ensure the scheduler doesn't
  change the instruction ordering in the IT block (since IT mask has been
  finalized). It also ensures no other instructions can be scheduled between
  instructions in the IT block.

This is not yet enabled.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106344 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 23:09:54 +00:00
Jim Grosbach
ef6eb9c7ab back-end libcall handling for ATOMIC_SWAP (__sync_lock_test_and_set) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106342 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 23:03:10 +00:00
Jim Grosbach
68741be5e6 Enable Expand handling of atomics for subtargets that can't do them inline. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106336 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 22:35:32 +00:00
Jakob Stoklund Olesen
0465bcffbb TwoAddressInstructionPass::CoalesceExtSubRegs can insert INSERT_SUBREG 
instructions, but it doesn't really understand live ranges, so the first
INSERT_SUBREG uses an implicitly defined register.

Fix it in LiveVariableAnalysis by adding the <undef> flag.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106333 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 22:29:44 +00:00
Evan Cheng
6a5e2832d0 Fix an inverted condition. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106330 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 22:17:13 +00:00
Bruno Cardoso Lopes
4b8921d1c7 Use the new 'defm' class inheritance in SSE 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106327 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 22:10:11 +00:00
Evan Cheng
a845706dc1 Fix cross initialization compilation error. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106324 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 22:01:37 +00:00
Evan Cheng
a9934dc20a Teach iff-converter to properly count # of dups. It was not skipping over dbg_value's which resulted in non-duplicated instructions being deleted. rdar://8104384. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106323 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 21:52:57 +00:00
Jim Grosbach
e03262fcfc Add Expand-to-libcall support for additional atomics. This covers the usual 
entries used by llvm-gcc. *_[U]MIN and such can be added later if needed.

This enables the front ends to simplify handling of the atomic intrinsics by
removing the target-specific decision about which targets can handle the
intrinsics.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106321 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 21:43:38 +00:00
Bob Wilson
ebe99b2c19 Rewrite chained if's as switches and replace assertions with llvm_unreachable 
(as suggested in radar 8104405).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106318 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 21:32:42 +00:00
Dale Johannesen
51bd47edbc Fix ARM/Thumb reversal in previous attempt. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106314 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 21:07:47 +00:00
Jakob Stoklund Olesen
52c61ec164 When using ADDri to get the address of a stack object, 255 is a conservative 
limit on the offset that can be materialized without using the register
scavenger.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106312 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 20:59:25 +00:00
Dan Gohman
1415a602ad Make this comment less specific. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106311 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 20:45:41 +00:00
Dan Gohman
ea9f151cbc Fix X86FastISel's address-mode folding to stay within the 
original basic block. This avoids trouble with examining
instructions in other basic blocks which haven't been
assigned registers yet.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106310 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 20:44:47 +00:00
Dale Johannesen
10416803c1 An attempt to fix the problem Anton reported with 
ARM tail calls.  Don't know if it works, but it
doesn't break Darwin.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106309 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 20:44:28 +00:00
Dan Gohman
3bf63768e5 Revert r106304 (105548 and friends), which are the SCEVComplexityCompare 
optimizations. There is still some nondeterminism remaining.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106306 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 19:54:20 +00:00
Dan Gohman
78db186d2d Reapply 105540, 105542, and 105548, and revert r105732. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106304 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 19:26:04 +00:00
Dan Gohman
e0f0c7b024 Reapply 105546. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106302 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 19:12:32 +00:00
Dan Gohman
c72f0c8c57 Reapply 105544. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106301 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 19:09:27 +00:00
Dale Johannesen
c66cdf74a9 Enable tail calls on ARM by default, with some 
basic tests.

This has been well tested on Darwin but not elsewhere.
It should work provided the linker correctly resolves
  B.W  <label in other function>
which it has not seen before, at least from llvm-based
compilers.  I'm leaving the arm-tail-calls switch in
until I see if there's any problems because of that;
it might need to be disabled for some environments.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106299 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 19:00:18 +00:00
Dan Gohman
71f095b20a Don't leak RegClass2VRegMap, which is now a new[] array instead of a 
std::vector.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106298 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 18:54:05 +00:00
Dan Gohman
a606d955de Start TargetRegisterClass indices at 0 instead of 1, so that 
MachineRegisterInfo doesn't have to confusingly allocate an extra
entry.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106296 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 18:13:55 +00:00
Dale Johannesen
df50d7e238 Last round of changes for ARM tail calls. 
Not turning them on yet.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106295 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 18:13:11 +00:00
Bob Wilson
f50e952b0d Fix PR7372: Conditional branches (at least on ARM) are treated as predicated, 
so when IfConverter::CopyAndPredicateBlock checks to see if it should ignore
an instruction because it is a branch, it should not check if the branch is
predicated.

This case (when IgnoreBr is true) is only relevant from IfConvertTriangle,
where new branches are inserted after the block has been copied and predicated.
If the original branch is not removed, we end up with multiple conditional
branches (possibly conflicting) at the end of the block.  Aside from any
immediate errors resulting from that, this confuses the AnalyzeBranch functions
so that the branches are not analyzable.  That in turn causes the IfConverter to
think that the "Simple" pattern can be applied, and things go downhill fast
because the "Simple" pattern does _not_ apply if the block can fall through.

This is pretty fragile.  If there are other degenerate cases where AnalyzeBranch
fails, but where the block may still fall through, the IfConverter should not
perform its "Simple" if-conversion.  But, I don't know how to do that with the
current AnalyzeBranch interface, so for now, the best thing seems to be to
avoid creating branches that AnalyzeBranch cannot handle.

Evan, please review!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106291 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 17:07:23 +00:00
Jakob Stoklund Olesen
0d8ba3303b Treat the ARM inline asm {cc} constraint as a physreg (%CPSR), just like X86 
does for {flags}. If we create virtual registers of the CCR class, RegAllocFast
may try to spill them, and we can't do that.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106289 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 16:49:33 +00:00
Dan Gohman
4593433015 Don't bother calling releaseMemory before destroying the DominatorTreeBase. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106287 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 16:09:11 +00:00
Dan Gohman
927f866105 Minor code simplifications. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106286 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 16:00:29 +00:00
Dan Gohman
03c3dc7b68 Give NamedRegionTimer an Enabled flag, allowing all its clients to 
switch from this:

  if (TimePassesIsEnabled) {
    NamedRegionTimer T(Name, GroupName);
    do_something();
  } else {
    do_something(); // duplicate the code, this time without a timer!
  }

to this:

  {
    NamedRegionTimer T(Name, GroupName, TimePassesIsEnabled);
    do_something();
  }


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106285 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 15:56:31 +00:00
Dan Gohman
27445f0375 Don't replace the old Ordering object with a new one; just clear() 
the old one.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106284 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 15:40:58 +00:00
Dan Gohman
c97df860dd Don't call clear() on DbgInfo when it's going to be deleted anyway. 
Don't replace the old DbgInfo with a new one when clear() on the
old one is sufficient.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106283 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 15:36:18 +00:00
Dan Gohman
027657db7c Change UpdateNodeOperands' operand and return value from SDValue to 
SDNode *, since it doesn't care about the ResNo value.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106282 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 15:30:29 +00:00
Dan Gohman
07587a4500 Remove getIntegerSCEV; it's redundant with getConstant, and getConstant 
is more consistent with the ConstantInt API.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106281 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 14:33:50 +00:00
Dan Gohman
5ff12fc41a Delete unused variables. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106280 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 14:32:32 +00:00
Dan Gohman
e368b460a2 Eliminate unnecessary uses of getZExtValue(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106279 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 14:22:04 +00:00
Dan Gohman
7720cb3823 isValueValidForType can be a static member function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106278 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 14:01:07 +00:00
Eric Christopher
f627dc37bf Some assorted isTwoAddress -> Constraints cleanup. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106273 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 02:41:19 +00:00
Dan Gohman
963433115a Handle execution entrypoints with non-integer return types. 
Fix from Russel Power in PR7284.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106271 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 02:01:10 +00:00
Dan Gohman
a52838285b Disable indvars on loops when LoopSimplify form is not available. 
This fixes PR7333.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106267 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 01:35:11 +00:00
Dan Gohman
e54081088e Don't maintain a set of deleted nodes; instead, use a HandleSDNode 
to track a node over CSE events. This fixes PR7368.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106266 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 01:24:29 +00:00
Bruno Cardoso Lopes
d7f9cc4de7 Add {mix,max}{ss,sd}{rr,rm} AVX forms. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106264 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 01:12:56 +00:00
Dan Gohman
8a7f7426ee Fold the ShrinkDemandedOps pass into the regular DAGCombiner pass, 
which is faster, simpler, and less surprising.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106263 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 01:05:21 +00:00
Dan Gohman
4f46e14b8a Fix a typo in a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106260 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 00:53:08 +00:00
Dan Gohman
9e86a73568 Handle ext(ext(x)) -> ext(x) immediately, since it's simple. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106256 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-18 00:08:30 +00:00
Dan Gohman
27ed6a41ce Simplify this code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106254 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-17 23:34:09 +00:00
Bruno Cardoso Lopes
597ec8ed51 Use new tablegen resources in SSE tablegen code. This will 
be done incrementally and intermixed with the adding of more
AVX instructions. This is a first step in that direction


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106251 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-17 23:05:30 +00:00
Stuart Hastings
3bf9125933 Add a DebugLoc parameter to TargetInstrInfo::InsertBranch(). This 
addresses a longstanding deficiency noted in many FIXMEs scattered
across all the targets.

This effectively moves the problem up one level, replacing eleven
FIXMEs in the targets with eight FIXMEs in CodeGen, plus one path
through FastISel where we actually supply a DebugLoc, fixing Radar
7421831.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106243 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-17 22:43:56 +00:00
Jim Grosbach
59c38f31ac add missing break. inconsequential as the code shouldn't be reached, but 
for correctness' sake, it should be there.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106229 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-17 17:58:54 +00:00
Jim Grosbach
b56ce8171e Add entries for Expanding atomic intrinsics to libcalls. Just a placeholder 
for the moment. The implementation of the libcall will follow.

Currently, the llvm-gcc knows when the intrinsics can be correctly handled by
the back end and only generates them in those cases, issuing libcalls directly
otherwise. That's too much coupling. The intrinsics should always be
generated and the back end decide how to handle them, be it with a libcall,
inline code, or whatever. This patch is a step in that direction.

rdar://8097623



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106227 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-17 17:50:54 +00:00
Jim Grosbach
7072cf62a5 Thumb1 and any pre-v6 ARM target should use the libcall expansion of 
ISD::MEMBARRIER. v7 and v7 ARM mode continue to use the custom lowering.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106204 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-17 02:02:03 +00:00
Jim Grosbach
bbfc0d22a9 ISD::MEMBARRIER should lower to a libcall (__sync_synchronize) if the target 
sets the legalize action to Expand.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106203 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-17 02:00:53 +00:00
Jim Grosbach
c73993b678 simplify code a bit and add a more explanatory assert for cases that 
previously would result in 'cannot yet select' errors.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106199 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-17 01:37:00 +00:00
Jason Molenda
f7a503e6bb Add the entire range of DW_OP_lit[0..31], DW_OP_reg[0..31], and 
DW_OP_breg[0..31] to Dwarf.h.

Add "DW_" prefix to the llvm::dwarf::*String methods which did not
already have them in Dwarf.cpp.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106197 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-17 01:23:24 +00:00
Eric Christopher
e98ad83543 Hack to let the move lowering handle dynamic-no-pic absolute moves of 
TLVP:

movl _a@TLVP, %eax

Daniel: Please review if you get a chance.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106194 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-17 00:51:48 +00:00
Eric Christopher
04b8d3cc49 Update comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106191 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-17 00:49:46 +00:00
Jim Grosbach
7616b646f1 format and 80-column cleanup 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106173 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-16 23:45:49 +00:00
Jim Grosbach
d0e8469ba6 remove trailing whitespace 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106164 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-16 22:41:09 +00:00
Jakob Stoklund Olesen
a2846b4bee Don't attempt preserving conservative kill flags. We were doing it wrong. 
This is before LiveVariables anyway, where these kill flags are recalculated.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106157 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-16 22:11:08 +00:00
Bob Wilson
07f6e805b1 Remove the hidden "neon-reg-sequence" option. The reg sequences are working 
now, so there's no need to disable them.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106155 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-16 21:34:01 +00:00
Eric Christopher
bc06737c35 In progress on 32-bit addends. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106154 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-16 21:32:38 +00:00
Jakob Stoklund Olesen
c66d0f2a93 Allow a register to be redefined multiple times in a basic block. 
LiveVariableAnalysis was a bit picky about a register only being redefined once,
but that really isn't necessary.

Here is an example of chained INSERT_SUBREGs that we can handle now:

68      %reg1040<def> = INSERT_SUBREG %reg1040, %reg1028<kill>, 14
                register: %reg1040 +[70,134:0)
76      %reg1040<def> = INSERT_SUBREG %reg1040, %reg1029<kill>, 13
                register: %reg1040 replace range with [70,78:1) RESULT: %reg1040,0.000000e+00 = [70,78:1)[78,134:0)  0@78-(134) 1@70-(78)
84      %reg1040<def> = INSERT_SUBREG %reg1040, %reg1030<kill>, 12
                register: %reg1040 replace range with [78,86:2) RESULT: %reg1040,0.000000e+00 = [70,78:1)[78,86:2)[86,134:0)  0@86-(134) 1@70-(78) 2@78-(86)
92      %reg1040<def> = INSERT_SUBREG %reg1040, %reg1031<kill>, 11
                register: %reg1040 replace range with [86,94:3) RESULT: %reg1040,0.000000e+00 = [70,78:1)[78,86:2)[86,94:3)[94,134:0)  0@94-(134) 1@70-(78) 2@78-(86) 3@86-(94)

rdar://problem/8096390

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106152 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-16 21:29:40 +00:00
Jim Grosbach
08f55d02da A few more places where SCEVExpander bits need to skip over debug intrinsics 
when iterating through instructions. Yet more work for rdar://7797940

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106149 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-16 21:13:38 +00:00
Daniel Dunbar
a86de10508 MC/Mach-O: Rewrite atom association to be a final pass we do in Finish(), instead of tracking as part of emission. 
- This allows sharing more code with the MCObjectStreamer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106143 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-16 20:04:32 +00:00
Daniel Dunbar
843aa1f15b MC: Simplify MCAssembler::isSymbolLinkerVisible to only take an MCSymbol. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106142 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-16 20:04:29 +00:00
Daniel Dunbar
83b467178a MC: Lift SwitchSection() and Finish() into MCObjectStreamer. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106141 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-16 20:04:25 +00:00
Daniel Dunbar
8dc68ab931 MC: Factor out an MCObjectStreamer class, which will be shared by the concrete 
object file format writers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106140 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-16 20:04:22 +00:00
Rafael Espindola
e96af56a5b Make sure that simplify libcalls does not replace a call with one calling 
convention with a new call with a different calling convention.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106134 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-16 19:34:01 +00:00
Jim Grosbach
956352eb46 add FIXME 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106126 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-16 18:45:08 +00:00
Bill Wendling
504c0cda91 Improve comment to include that the use of a preg is also verboten in this situation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106119 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-16 18:01:31 +00:00
Benjamin Kramer
0f471e018f TODO-- 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106102 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-16 15:47:00 +00:00
Benjamin Kramer
ea9ca0236d simplify-libcalls: fold strncmp(x, y, 1) -> memcmp(x, y, 1) 
The memcmp will be optimized further and even the pathological case
'strstr(x, "x") == x' generates optimal code now.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106097 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-16 10:30:29 +00:00
Evan Cheng
46df4eb46e Make post-ra scheduling, anti-dep breaking, and register scavenger (conservatively) aware of predicated instructions. This enables ARM to move if-conversion before post-ra scheduler. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106091 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-16 07:35:02 +00:00
Devang Patel
ffd33cd364 Check function pointer first, before comparing function names. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106088 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-16 06:42:02 +00:00
Devang Patel
2f7d5291de Use separate named MDNode to hold each function's local variable info. 
This speeds up local variable handling in DwarfDebug.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106075 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-16 00:53:55 +00:00
Eric Christopher
7500e06e38 Don't emit the linkage for initializer label for mach-o tls. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106073 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-16 00:27:30 +00:00
Eric Christopher
e48dbf8d83 Fix indentation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106072 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-16 00:26:36 +00:00
Bill Wendling
d361a77f14 Create a more targeted fix for not sinking instructions into a range where it 
will conflict with another live range. The place which creates this scenerio is
the code in X86 that lowers a select instruction by splitting the MBBs. This
eliminates the need to check from the bottom up in an MBB for live pregs.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106066 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-15 23:46:31 +00:00
Eric Christopher
6102549737 For 32-bit non-pic tlv mach-o addressing we don't need a pic base or 
a relative address.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106064 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-15 23:08:42 +00:00
Stuart Hastings
cad22ad0bf Added a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106063 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-15 23:06:30 +00:00
Eric Christopher
c9ada472c8 Some more work on mach-o TLV relocations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106062 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-15 22:59:05 +00:00
Dale Johannesen
38d5f0441c Add file missing from previous commit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106058 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-15 22:24:08 +00:00
Bob Wilson
92fffe0405 Fix 80col violations, remove trailing whitespace, and clarify a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106057 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-15 22:18:54 +00:00
Dale Johannesen
6470a116f1 Next round of tail call changes. Register used in a tail 
call must not be callee-saved; following x86, add a new
regclass to represent this.  Also fixes a couple of bugs.
Still disabled by default; Thumb doesn't work yet.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106053 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-15 22:08:33 +00:00
Jakob Stoklund Olesen
8a3eab9b20 Remove the local register allocator. 
Please use the fast allocator instead.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106051 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-15 21:58:33 +00:00
Dale Johannesen
bf37850e42 Reapply 105986 with fix for bug pointed out by Jakob: 
flag argument to addReg is not the same format as flags attached
to MachineOperand, although both have the same info.  I don't
think this actually mattered; the bootstrap failure did not
reproduce on the next run anyway.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106049 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-15 21:36:43 +00:00
Benjamin Kramer
386e918438 simplify-libcalls: fold strstr(a, b) == a -> strncmp(a, b, strlen(b)) == 0 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106047 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-15 21:34:25 +00:00
Mon P Wang
9c4a84b4f3 Fixed vector widening of binary instructions that can trap. Patch by Visa Putkinen! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106038 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-15 20:29:05 +00:00
Daniel Dunbar
71907fbebf fpcmp: Fix bug where fpcmp wouldn't early exit when files obviously differ and 
no tolerance is set.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106033 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-15 19:20:30 +00:00
Daniel Dunbar
d1c82fe726 fpcmp: Fix a possible infinite loop when comparing something like: 
1..19 ok
to
  1..20 o k
(yes, the odd space is necessary).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106032 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-15 19:20:28 +00:00
Chris Lattner
868ee9460c fix fastisel to handle GS and FS relative pointers. Patch by 
Nelson Elhage!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106031 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-15 19:08:40 +00:00
Bob Wilson
827b2106fe Add basic support for NEON modified immediates besides VMOV. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106030 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-15 19:05:35 +00:00
Bob Wilson
6fb124bee9 IfConversion's AnalyzeBlocks method always returns false; clean it up. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106027 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-15 18:57:15 +00:00
Jim Grosbach
288694f430 fix naming 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106024 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-15 18:53:34 +00:00
Jakob Stoklund Olesen
1b2f94c621 Fix an exotic bug that only showed up in an internal test case. 
SimpleRegisterCoalescing::JoinIntervals() uses CoalescerPair to determine if a
copy is coalescable, and in very rare cases it can return true where LHS is not
live - the coalescable copy can come from an alias of the physreg in LHS.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106021 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-15 18:49:14 +00:00
Bob Wilson
669db04130 Fix a comment typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106015 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-15 18:19:27 +00:00
Bob Wilson
4ffd22d810 Add some missing checks for the case where the extract_subregs are 
combined to an insert_subreg, i.e., where the destination register is larger
than the source.  We need to check that the subregs can be composed for that
case in a symmetrical way to the case when the destination is smaller.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106004 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-15 17:27:54 +00:00
Jakob Stoklund Olesen
75ac4d9c2d Avoid processing early clobbers twice in RegAllocFast. 
Early clobbers defining a virtual register were first alocated to a physreg and
then processed as a physreg EC, spilling the virtreg.

This fixes PR7382.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105998 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-15 16:20:57 +00:00
Jakob Stoklund Olesen
40d07bbebb Add CoalescerPair helper class. 
Given a copy instruction, CoalescerPair can determine which registers to
coalesce in order to eliminate the copy. It deals with all the subreg fun to
determine a tuple (DstReg, SrcReg, SubIdx) such that:

- SrcReg is a virtual register that will disappear after coalescing.
- DstReg is a virtual or physical register whose live range will be extended.
- SubIdx is 0 when DstReg is a physical register.
- SrcReg can be joined with DstReg:SubIdx.

CoalescerPair::isCoalescable() determines if another copy instruction is
compatible with the same tuple. This fixes some NEON miscompilations where
shuffles are getting coalesced as if they were copies.

The CoalescerPair class will replace a lot of the spaghetti logic in JoinCopy
later.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105997 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-15 16:04:21 +00:00
Daniel Dunbar
f4a7bf4ec3 Add <cstddef> include to get ptrdiff_t, for gcc-4.6; patch by Dimitry Andric. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105994 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-15 14:50:42 +00:00
Bob Wilson
852a7e362e Generalize the pre-coalescing of extract_subregs feeding reg_sequences, 
replacing the overly conservative checks that I had introduced recently to
deal with correctness issues.  This makes a pretty noticable difference
in our testcases where reg_sequences are used.  I've updated one test to
check that we no longer emit the unnecessary subreg moves.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105991 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-15 05:56:31 +00:00
Bob Wilson
14f1d4e74b VMOVQQ and VMOVQQQQ are pseudo instructions and not predicable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105990 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-15 05:51:27 +00:00
Dale Johannesen
69ba5c6aa8 Revert 105986; looks like I'd better try bootstrapping. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105988 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-15 04:55:06 +00:00
Ted Kremenek
76863b16c6 Update CMake build. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105987 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-15 04:08:14 +00:00
Dale Johannesen
4b559f070a The form of BuildMI used for TAILJMPr was changing the register 
containing the target address, an input, into an output.  I don't
think this actually broke anything on x86 (it does on ARM), but
it's wrong.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105986 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-15 03:13:49 +00:00
Jim Grosbach
400c95fe38 Make sure to skip dbg_value instructions when finding an insertion point for 
the combined load/store instruction. rdar://7797940

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105982 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-15 00:41:09 +00:00
Bob Wilson
d3c4284849 Rename functions referring to VMOV immediates to refer to NEON "modified 
immediate" operands.  These functions have so far only been used for VMOV
but they also apply to other NEON instructions with modified immediate
operands.  No functional changes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105969 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-14 22:19:57 +00:00
Jim Grosbach
c834f413ae More dbg_value cleanup so the presence of debug info doesn't affect code-gen. 
Make sure to skip the dbg_value instructions when moving dups out of the
diamond. rdar://7797940

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105965 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-14 21:30:32 +00:00
Evan Cheng
774bc882fd - Do away with SimpleHazardRecognizer.h. It's not used and offers little value. 
- Rename ExactHazardRecognizer to PostRAHazardRecognizer and move its header to include to allow targets to extend it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105959 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-14 21:06:53 +00:00
Evan Cheng
538ccb0d99 Avoid uncessary array copying. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105955 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-14 20:18:40 +00:00
Chris Lattner
6b601536ff fix a nasty bug where we were not treating available_externally 
symbols as declarations in the X86 backend.  This would manifest
on darwin x86-32 as errors like this with -fvisibility=hidden:

symbol '__ZNSbIcED1Ev' can not be undefined in a subtraction expression

This fixes PR7353.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105954 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-14 20:11:56 +00:00
Chris Lattner
e58867e55e jump threading can't split a critical edge from an indirectbr. This 
fixes PR7356.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105950 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-14 19:45:43 +00:00
Chris Lattner
ef66df4da8 fix a -Wbool-conversions warning from clang. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105943 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-14 18:28:57 +00:00
Chris Lattner
98cdfc779d fix a -Wbool-conversions warning from clang. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105942 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-14 18:28:34 +00:00
Eli Friedman
e103194851 Add back some possible optimizations for va_arg, with wording that makes it 
more clear what exactly is missing.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105934 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-14 07:03:30 +00:00
Benjamin Kramer
c05cb8d561 SimplifyCFG: don't turn volatile stores to null/undef into unreachable. Fixes PR7369. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105914 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-13 14:35:54 +00:00
Rafael Espindola
21d238fdba Merge getStoreRegOpcode and getLoadRegOpcode. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105900 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-12 20:13:29 +00:00
Chris Lattner
2a9a8ae081 improve verifier error about unterminated block to include 
function name, patch by Yuri


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105887 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-12 15:50:24 +00:00
Eli Friedman
8c47d3b73f Add README entry; based on testcase from Bill Hart. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105878 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-12 05:54:27 +00:00
Bruno Cardoso Lopes
2dcf6d6019 make the avx intrinsics 3 address 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105876 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-12 03:12:14 +00:00
Bruno Cardoso Lopes
11ae95c175 Add some basic fp intrinsics for AVX 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105873 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-12 02:38:32 +00:00
Bill Wendling
94366111d3 When performing the Horrible Hack(tm-Duncan) on the EH code to convert a 
clean-up to a catch-all after inlining, take into account that there could be
filter IDs as well. The presence of filters don't mean that the selector catches
anything. It's just metadata information.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105872 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-12 02:34:29 +00:00
Bruno Cardoso Lopes
cf125d02a0 More AVX: {ADD,SUB,MUL,DIV}{PD,PS}rm 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105870 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-12 01:53:48 +00:00
Bruno Cardoso Lopes
7be0d2c8e9 More AVX: {ADD,SUB,MUL,DIV}{PD,PS}rr 
Handle OpSize TSFlag for AVX



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105869 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-12 01:23:26 +00:00
Evan Cheng
729aab3dd3 Allow target to provide its own hazard recognizer to post-ra scheduler. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105862 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-12 00:12:18 +00:00
Evan Cheng
44acc24117 Code formatting. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105861 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-12 00:11:53 +00:00
Bruno Cardoso Lopes
e4f6907a7a Add some comments about REX fields 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105860 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-12 00:03:52 +00:00
Bruno Cardoso Lopes
c902a59f4c More AVX instructions ({ADD,SUB,MUL,DIV}{SS,SD}rm) 
Introduce the VEX_X field


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105859 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-11 23:50:47 +00:00
Bob Wilson
1114f568bc Add a missing bitcast. This code used to only handle conversions between 
i64 and f64 types, but now it also handle Neon vector types, so the f64 result
of VMOVDRR may need to be converted to a Neon type.  Radar 8084742.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105845 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-11 22:45:25 +00:00
Bob Wilson
1a913ed178 Add instruction encoding for the Neon VMOV immediate instruction. This changes 
the machine instruction representation of the immediate value to be encoded
into an integer with similar fields as the actual VMOV instruction.  This makes
things easier for the disassembler, since it can just stuff the bits into the
immediate operand, but harder for the asm printer since it has to decode the
value to be printed.  Testcase for the encoding will follow later when MC has
more support for ARM.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105836 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-11 21:34:50 +00:00
Stuart Hastings
215aa15a0d Support for nested functions/classes in debug output. (Again.) Radar 7424645. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105828 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-11 20:08:44 +00:00
Stuart Hastings
3893ce1b1b Delete duplicate function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105827 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-11 20:05:01 +00:00
Duncan Sands
fc6afa92d6 Avoid "variable 'bits' set but not used [-Wunused-but-set-variable]" 
warnings with gcc-4.6, by not setting bits when the result is not
used.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105790 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-10 16:23:15 +00:00
Evan Cheng
302ef834e0 Code refactoring, no functionality changes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105775 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-10 02:09:31 +00:00
Evan Cheng
aa4b5429ef Delete code that's not safe. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105774 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-10 02:08:20 +00:00
Jim Grosbach
db03adb346 be slightly more subtle about skipping dbg_value instructions; otherwise, if a 
dbg_value immediately follows a sequence of ldr/str instructions that should
be combined into an ldm/stm and is the last instruction in the block, then
combine may end up being skipped.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105758 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-09 22:21:24 +00:00
Jakob Stoklund Olesen
3013a20684 Mark physregs defined by inline asm as implicit. 
This is a bit of a hack to make inline asm look more like call instructions.
It would be better to produce correct dead flags during isel.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105749 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-09 20:05:00 +00:00
Evan Cheng
68fc2daf8f Allow target to place 2-address pass inserted copies in better spots. Thumb2 will use this to try to avoid breaking up IT blocks. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105745 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-09 19:26:01 +00:00
Bill Wendling
d64ba3ee62 It's an error to translate this: 
%reg1025 = <sext> %reg1024
    ...
   %reg1026 = SUBREG_TO_REG 0, %reg1024, 4

into this:

   %reg1025 = <sext> %reg1024
    ...
   %reg1027 = EXTRACT_SUBREG %reg1025, 4
   %reg1026 = SUBREG_TO_REG 0, %reg1027, 4

The problem here is that SUBREG_TO_REG is there to assert that an implicit zext
occurs. It doesn't insert a zext instruction. If we allow the EXTRACT_SUBREG
here, it will give us the value after the <sext>, not the original value of
%reg1024 before <sext>.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105741 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-09 19:00:55 +00:00
Evan Cheng
1d451dff63 Revert 105540, 105542, 105544, 105546, and 105548 to unbreak bootstrapping. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105740 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-09 18:59:43 +00:00
Kenneth Uildriks
42c7d23c6d Pulled CodeMetrics out of InlineCost.h and made it a bit more general, so it can be reused from PartialSpecializationCost 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105725 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-09 15:11:37 +00:00
Kalle Raiskila
43d225dc8b Fix SPU to cope with vector insertelement to an undef position. 
We default to inserting to lane 0.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105722 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-09 09:58:17 +00:00
Kalle Raiskila
c6166c6bca Handle loading from/storing to undef pointers on SPU by inserting a 
random load/store, rather than crashing llc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105710 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-09 08:29:41 +00:00
Evan Cheng
34aa423814 Typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105677 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-09 03:49:12 +00:00
Eli Friedman
092f9c116a A few new x86-64 specific README entries. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105674 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-09 02:43:17 +00:00
Evan Cheng
d847124211 Thumb2 IT blocks are fairly expensive. When there are multiple selects using 
the same condition, it's important to make sure they are scheduled together
to avoid forming multiple IT blocks. I'm adding a pre-regalloc pass that forms
IT blocks early (by re-scheduling instructions and split basic blocks) to
attempt to fix this. This is not turned on by default since I am not sure this
is the right fix.

Another issue is llvm selects are modeled as two-address conditional moves.
This can be very bad when the copies before the conditional moves are not
coalesced away. Teach IT formation pass to move the copies above the IT block
(when legal) to avoid breaking the IT block.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105669 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-09 01:46:50 +00:00
Jakob Stoklund Olesen
c3c2517fed Add argument name comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105665 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-09 00:40:31 +00:00
Kevin Enderby
09712b57ce Incremental improvement to the handling of the x86 "Jump if rCX Zero" 
instruction.  Added the 64-bit version "jrcxz" so it is recognized and also
added the checks for incorrect uses of "jcxz" in 64-bit mode and "jrcxz" in
32-bit mode.  Still to do is to correctly handle the encoding of the
instruction adding the Address-size override prefix byte, 0x67, when the width
of the count register is not the same as the mode the machine is running in.
Which for example means the encoding of "jecxz" depends if you are assembling
as a 32-bit target or a 64-bit target.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105661 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-08 23:48:44 +00:00
Eric Christopher
497f1eb2b8 Split out these asserts so it's more apparent why we're not assembling 
that rip-relative address when executing in 32-bit mode.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105656 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-08 22:57:33 +00:00
Jim Grosbach
6335ac67b6 fix copy/paste/modify think-o 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105653 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-08 22:53:32 +00:00
Bruno Cardoso Lopes
99405df044 Reapply r105521, this time appending "LLU" to 64 bit 
immediates to avoid breaking the build.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105652 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-08 22:51:23 +00:00
Eric Christopher
544153653b Ensure that mov and not lea are used to stick the address into 
the register.  While we're at it, make sure it's in the right one.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105645 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-08 22:04:25 +00:00
Jim Grosbach
b84adb3b80 fix typo 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105634 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-08 20:06:55 +00:00
Daniel Dunbar
ef45832d7c Use const_iterator where appropriate. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105620 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-08 17:21:57 +00:00
Daniel Dunbar
18ed7b27eb DeltaAlgorithm: Tweak split to split by first/second half instead of even/odd, since adjacent changes are more likely to be related. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105613 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-08 16:21:26 +00:00
Daniel Dunbar
73c6031a25 ADT: Add DAGDeltaAlgorithm, which is a DAG minimization algorithm built on top of the standard 'delta debugging' algorithm. 
- This can give substantial speedups in the delta process for inputs we can construct dependency information for.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105612 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-08 16:21:22 +00:00
Benjamin Kramer
d164d3d9e7 Use realloc instead of malloc+memcpy when growing a POD SmallVector. A smart 
realloc implementation can try to expand the allocated memory block in-place,
avoiding the copy.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105605 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-08 11:44:30 +00:00
Kalle Raiskila
e77ff11a34 Flag SPU's function call sequence together. 
Discussed here:
http://lists.cs.uiuc.edu/pipermail/llvmdev/2010-June/032107.html


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105601 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-08 07:55:16 +00:00
Bob Wilson
dd726e5bce Fix up a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105591 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-08 00:42:08 +00:00
Bob Wilson
53dd2454d5 Further changes for Neon vector shuffles: 
- change isShuffleMaskLegal to show that all shuffles with 32-bit and 64-bit
  elements are legal
- the Neon shuffle instructions do not support 64-bit elements, but we were
  not checking for that before lowering shuffles to use them
- remove some 64-bit element vduplane patterns that are no longer needed


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105586 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-07 23:53:38 +00:00
Bob Wilson
66dc4e2acd Fix a mistake in my previous change r105437: don't access operand 2 and assume 
that it is an immediate before checking that the instruction is an
EXTRACT_SUBREG.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105585 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-07 23:48:46 +00:00
Dan Gohman
ba1fe14245 Add some basic debug output. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105561 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-07 22:32:10 +00:00
Jim Grosbach
8077e76f93 Handle dbg_value instructions (i.e., skip them) when generating IT blocks. 
rdar://7797940

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105557 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-07 21:48:47 +00:00
Jim Grosbach
66f360e990 Cleanup. Process the dbg_values separately 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105554 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-07 21:28:55 +00:00
Dan Gohman
b9539745c5 Make bugpoint dead-argument-hacking actually work, and actually test it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105551 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-07 20:20:33 +00:00
Dan Gohman
fd447eff22 The FoldingSet hash data includes pointer values, so it isn't 
determinstic. Instead, give SCEV objects an arbitrary sequence
number.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105548 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-07 19:36:14 +00:00
Dan Gohman
5e5dd68c7f Optimize this code somewhat by taking advantage of the fact 
that the operands are sorted.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105546 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-06-07 19:20:57 +00:00