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Author SHA1 Message Date
Nick Lewycky
75dfadbaf9 Switch to DenseSet, simplifying much more code. We now have a single iteration 
where we hash, compare and fold, instead of one iteration where we build up
the hash buckets and a second one to fold.

llvm-svn: 112582
 2010-08-31 05:53:05 +00:00
Owen Anderson
bd9edea8a3 Remove r111665, which implemented store-narrowing in InstCombine. Chris discovered a miscompilation in it, and it's not easily 
fixable at the optimizer level. I'll investigate reimplementing it in DAGCombine.

llvm-svn: 112575
 2010-08-31 04:41:06 +00:00
Bruno Cardoso Lopes
ebe80d78ff zap unused method. x86 is the only user and already has a more powerfull version 
llvm-svn: 112571
 2010-08-31 02:36:20 +00:00
Bruno Cardoso Lopes
08d5d62dcb Use X86ISD::MOVSS and MOVSD to represent the movl mask pattern, also fix the handling of those nodes when seeking for scalars inside vector shuffles 
llvm-svn: 112570
 2010-08-31 02:26:40 +00:00
Eric Christopher
b2756a8b99 Rewrite slightly so we can expand for floating point types easier. 
llvm-svn: 112568
 2010-08-31 01:28:42 +00:00
Jakob Stoklund Olesen
6fa8a6ac6b Add experimental -disable-physical-join command line option. 
Eventually, we want to disable physreg coalescing completely, and let the
register allocator do its job using hints.

This option makes it possible to measure the impact of disabling physreg
coalescing.

llvm-svn: 112567
 2010-08-31 01:27:49 +00:00
Owen Anderson
f1cec75012 Fix a typo. 
llvm-svn: 112560
 2010-08-30 23:59:30 +00:00
Eric Christopher
21b355b522 If we have an unhandled type then assert, we shouldn't get here for 
things we can't handle.

llvm-svn: 112559
 2010-08-30 23:48:26 +00:00
Dan Gohman
d261381db5 Update the descriptions of NoModRef and ModRef to be consistent 
with the descriptions of Mod and Ref.

llvm-svn: 112557
 2010-08-30 23:47:24 +00:00
Anton Korobeynikov
c3f039784a Fix borken test 
llvm-svn: 112555
 2010-08-30 23:41:49 +00:00
Owen Anderson
18110f0db4 Combine these two tests, and make sure there's a newline at the end of the file. 
llvm-svn: 112554
 2010-08-30 23:37:41 +00:00
Owen Anderson
c90a98e0a5 Cleanups suggested by Chris. 
llvm-svn: 112553
 2010-08-30 23:34:17 +00:00
Owen Anderson
af33f22b40 Re-apply r112539, being more careful to respect the return values of the constant folding methods. Additionally, 
use the ConstantExpr::get*() methods to simplify some constant folding.

llvm-svn: 112550
 2010-08-30 23:22:36 +00:00
Anton Korobeynikov
851437063a Expand MOVi32imm in ARM mode after regalloc. This provides 
scheduling opportunities (extra instruction can go in between
MOVT / MOVW pair removing the stall).

llvm-svn: 112546
 2010-08-30 22:50:36 +00:00
Owen Anderson
8e72b2f3f5 Add statistics to evaluate this pass. 
llvm-svn: 112545
 2010-08-30 22:45:55 +00:00
Owen Anderson
9d301e20e8 Revert r112539. It accidentally introduced a miscompilation. 
llvm-svn: 112543
 2010-08-30 22:33:41 +00:00
Owen Anderson
479c0c406f Fixes and cleanups pointed out by Chris. In general, be careful to handle 0 results from ComputeValueKnownInPredecessors 
(indicating undef), and re-use existing constant folding APIs.

llvm-svn: 112539
 2010-08-30 22:07:52 +00:00
Bill Wendling
7532e3418e Use the existing T2I_bin_s_irs pattern instead of creating T2I_bin_sw_irs, which 
is meant to do exactly the same thing. Thanks to Jim Grosbach for pointing this
out! :-)

llvm-svn: 112538
 2010-08-30 22:05:23 +00:00
NAKAMURA Takumi
2c7cfc7bd4 Fix a comment. 
llvm-svn: 112535
 2010-08-30 21:54:03 +00:00
Jakob Stoklund Olesen
ce3cfe3e8b Remember to clear the shadow kill flag at the same time as clearing the real 
kill flag.

This could cause duplicate kill flags when the same register was used twice in a
continuous sequence of STRs.

There is no small test case. <rdar://problem/8218046>

llvm-svn: 112534
 2010-08-30 21:52:40 +00:00
Dan Gohman
36b6dc3bc1 Fix llc to run the verifier once, not twice. 
llvm-svn: 112532
 2010-08-30 21:41:20 +00:00
Owen Anderson
24665a1e03 Remove this from the main tree. I'll host it out of tree. 
llvm-svn: 112529
 2010-08-30 21:34:26 +00:00
Dan Gohman
6909a51674 Add comments explaining why it's not necessary to include the 
is-function-local flag in metadata uniquing bits.

llvm-svn: 112528
 2010-08-30 21:18:41 +00:00
Bob Wilson
826a677f94 Remove NEON vmovn intrinsic, replacing it with vector truncate operations. 
Auto-upgrade the old intrinsic and update tests.

llvm-svn: 112507
 2010-08-30 20:02:30 +00:00
Jim Grosbach
674b25ce31 Make ARM add rN, sp, #imm instructions rematerializable. That's how the address of locals is calculated, so this should 
help relieve register pressure a bit. Recalculating the local address is
almost always going to be better than spilling.

llvm-svn: 112503
 2010-08-30 19:49:58 +00:00
Eric Christopher
da5541e56d Fix LLVM target initialization to deal with sociopathic outside projects 
that like to randomly define things like "X86", regenerate autoconf bits
and update cmake.

Fixes PR7852.

Patch by Xerxes Rånby!

llvm-svn: 112499
 2010-08-30 18:34:48 +00:00
Eric Christopher
5f8ae3dbd6 Kill a couple of unused variables. 
llvm-svn: 112498
 2010-08-30 18:31:44 +00:00
Chris Lattner
e667efb462 nuke dead ivar which was supposed to be committed with r112496 
llvm-svn: 112497
 2010-08-30 18:16:27 +00:00
Chris Lattner
765e59210c two changes: 
1) nuke ConstDataCoalSection, which is dead.
2) revise my previous patch for rdar://8018335,
  which was completely wrong.  Specifically, it doesn't 
  make sense to mark __TEXT,__const_coal as PURE_INSTRUCTIONS,
  because it is for readonly data.  templates (it turns out)
  go to const_coal_nt.  The real fix for rdar://8018335 was
  to give ConstTextCoalSection a section kind of ReadOnly 
  instead of Text.

llvm-svn: 112496
 2010-08-30 18:12:35 +00:00
Bob Wilson
2b83684be8 When expanding NEON VST pseudo instructions, if the original super-register 
operand is killed, add it to the expanded instruction as an implicit kill
operand instead of marking the individual subregs with kill flags.  This
should work better in general and also handles the case for VST3 where one
of the subregs was not referenced in the expanded instruction and so was
not marked killed.

llvm-svn: 112494
 2010-08-30 18:10:48 +00:00
Benjamin Kramer
6c5076f317 MCELF: The value of all common symbols is the offset from the start of the section. Patch by Roman Divacky. 
llvm-svn: 112492
 2010-08-30 17:20:17 +00:00
Owen Anderson
d29fb4b991 It is possible to try to merge a not-constant with a constantrage, when dealing with ptrtoint ConstantExpr's. 
Unfortunately, the only testcase I have for this is huge and doesn't reduce well because the error is
sensitive to iteration-order issues, since the problem only occurs when merging values in a particular order.

llvm-svn: 112489
 2010-08-30 17:03:45 +00:00
Michael J. Spencer
51a65365f3 Partially revert r112480. Caused test failures. 
llvm-svn: 112486
 2010-08-30 15:34:08 +00:00
NAKAMURA Takumi
89dab50acd coff-dump.py: Fix PR7996. Now it is compatible to Python-2.4. 
llvm-svn: 112485
 2010-08-30 15:19:56 +00:00
Michael J. Spencer
2f463fc492 Fix constant-over-index.ll test on windows. 
llvm-svn: 112483
 2010-08-30 15:08:02 +00:00
Michael J. Spencer
cd662e3540 Test: Fix LLVMC tests on CMake. 
The CMake build didn't define TEST_COMPILE_CXX_CMD. The tests assumed gcc.

llvm-svn: 112480
 2010-08-30 14:49:00 +00:00
Benjamin Kramer
b63bf8cf9b Don't print two "0x" prefixes. Use a raw_ostream overload instead of llvm::format. 
llvm-svn: 112479
 2010-08-30 14:46:53 +00:00
NAKAMURA Takumi
b5613b9f12 EE/JIT: Do not invoke parent's ctors/dtors from main()! (PR3897) 
On Mingw and Cygwin, the symbol __main is resolved to
callee's(eg. tools/lli) one, to invoke wrong duplicated ctors
(and register wrong callee's dtors with atexit(3)).
We expect, by callee, ExecutionEngine::runStaticConstructorsDestructors()
is called before ExecutionEngine::runFunctionAsMain() is called.

llvm-svn: 112474
 2010-08-30 14:00:29 +00:00
Benjamin Kramer
b540b09a7c The value is offset from the start of the section for non-common symbols, submitted by Jordan Gordeev. 
llvm-svn: 112473
 2010-08-30 12:00:16 +00:00
Benjamin Kramer
ca65cc9222 Index external symbols by symbol table instead of parent section, by Roman Divacky. 
llvm-svn: 112472
 2010-08-30 11:59:29 +00:00
Benjamin Kramer
3aabb3eb53 Mark all common symbols external. This is not exactly correct but it lets apps 
link for now and can be adjusted later. Patch by Roman Divacky.

llvm-svn: 112471
 2010-08-30 11:56:55 +00:00
Duncan Sands
3e49fe09db Remove a hack that tries to understand incorrect triples from the 
Triple class constructor.  Only valid triples should now be used
inside LLVM - front-ends are now responsable for rejecting or
correcting invalid target triples.  The Triple::normalize method
can be used to straighten out funky triples provided by users.
Give this a whirl through the buildbots to see if I caught all
places where triples enter LLVM.

llvm-svn: 112470
 2010-08-30 10:57:54 +00:00
Duncan Sands
254f8ff0a6 Correct bogus module triple specifications. 
llvm-svn: 112469
 2010-08-30 10:48:29 +00:00
Owen Anderson
fd4ce93e17 Add a new example to the LLVM distribution: a trace-based Brainfuck compiler that uses LLVM as its code generator. 
llvm-svn: 112465
 2010-08-30 07:33:39 +00:00
Chandler Carruth
eddd738031 Attempt to remove the MSIL backend from CMake as well based on Chris's r112375. 
llvm-svn: 112464
 2010-08-30 07:25:54 +00:00
Bill Wendling
999c8b219d Revert r112461. It was failing on PPC... 
llvm-svn: 112463
 2010-08-30 04:36:50 +00:00
Bill Wendling
c325a15569 Create Thumb2sI_cpsr and T2sI_cpsr. These new classes indicate that CPSR is the 
optional modified register (instead of reg0). Along with r112461 it will make
sure that the optional define of CPSR is marked as "def" and will thus mark the
instructions using these classes (t2ANDS*) as setting the 's' flag.

llvm-svn: 112462
 2010-08-30 01:47:35 +00:00
Bill Wendling
450e009b5e When adding a register, we should mark it as "def" if it can optionally define 
said (physical) register.

llvm-svn: 112461
 2010-08-30 01:36:05 +00:00
Chris Lattner
8331070df0 revert 112457, it looks like it broke selfhost. 
llvm-svn: 112459
 2010-08-29 22:28:18 +00:00
Chris Lattner
92879a5ba1 rewrite DwarfEHPrepare to use SSAUpdater to promote its allocas 
instead of PromoteMemToReg.  This allows it to stop using DF and DT,
eliminating a computation of DT and DF from clang -O3.  Clang is now
down to 2 runs of DomFrontier.

llvm-svn: 112457
 2010-08-29 19:54:28 +00:00