Commit Graph

36761 Commits

Author SHA1 Message Date
Nick Lewycky 52ea27db17 Match GCC's behaviour for these sections.
llvm-svn: 46916
2008-02-10 00:03:54 +00:00
Nate Begeman 727c7634c7 memopv16i8 had wrong alignment requirement, would have broken pabsb
pabs{b,w,d} are not two address
fix extract-to-mem sse4 ops
add sse4 vector sign extend nodes

llvm-svn: 46915
2008-02-09 23:46:37 +00:00
Chris Lattner 20ed4ef554 add some more notes, still not ready for review :)
llvm-svn: 46914
2008-02-09 22:58:07 +00:00
Chris Lattner 56e82884db scoped_ptr.h was removed.
llvm-svn: 46913
2008-02-09 22:50:06 +00:00
Gabor Greif dd1fc981b5 explain that NumElements in alloca and malloc defaults to one
llvm-svn: 46912
2008-02-09 22:24:34 +00:00
Dale Johannesen 43a2ed8611 Alignment of struct containing vectors depends on
whether SSE is present, on Darwin anyway.  Make it
explicit.

llvm-svn: 46909
2008-02-09 19:04:25 +00:00
Wojciech Matyjewicz 784d071e16 We should check that existing cast operation has the appropriate opcode before we reuse it.
llvm-svn: 46908
2008-02-09 18:30:13 +00:00
Wojciech Matyjewicz 5c252865de Add a check if the initial value of the induction variable is 0 (the method comment says it should be).
llvm-svn: 46907
2008-02-09 18:06:58 +00:00
Evan Cheng 6aabf837fe Remove unused hidden option.
llvm-svn: 46903
2008-02-09 08:36:28 +00:00
Nate Begeman 6715f755cc Skeleton of insert and extract matching, more to come
llvm-svn: 46902
2008-02-09 01:38:08 +00:00
Nate Begeman 17bedbc500 Tablegen support for insert & extract element matching
llvm-svn: 46901
2008-02-09 01:37:05 +00:00
Chris Lattner 7f5c2553c7 check that terminators only occur at the end of a block. This catches the
common problem of putting two terminators in the same block.  I can't write
a testcase for this because the .ll parser rejects this before the verifier
can, but this can occur when generating IR.

llvm-svn: 46900
2008-02-09 01:06:01 +00:00
Dan Gohman 65f63eba2b Change ConstantSDNode to store an APInt instead of a uint64_t, and
begin adding some methods to use it this way.

llvm-svn: 46899
2008-02-08 22:59:30 +00:00
Devang Patel 26f75e2576 Fix PR 1995.
llvm-svn: 46898
2008-02-08 22:49:13 +00:00
Evan Cheng f2bd1387b0 Forgot these files.
llvm-svn: 46896
2008-02-08 22:05:27 +00:00
Evan Cheng e460869d86 Also print alignment.
llvm-svn: 46895
2008-02-08 22:05:07 +00:00
Dan Gohman 168700bdf3 Add an isSignedIntN, like isIntN but for signed integer values instead of
unsigned.

llvm-svn: 46894
2008-02-08 21:58:15 +00:00
Evan Cheng 3b3286d4bc It's not always safe to fold movsd into xorpd, etc. Check the alignment of the load address first to make sure it's 16 byte aligned.
llvm-svn: 46893
2008-02-08 21:20:40 +00:00
Dale Johannesen 36c2967d89 64-bit (MMX) vectors do not need restrictive alignment.
128-bit vectors need it only when SSE is on.

llvm-svn: 46890
2008-02-08 19:48:20 +00:00
Ted Kremenek 6beacb1e14 Constified operator<< in APSInt.
llvm-svn: 46882
2008-02-08 07:14:19 +00:00
Dan Gohman 7a55a94ba1 Avoid needlessly casting away const qualifiers.
llvm-svn: 46877
2008-02-08 03:29:40 +00:00
Dan Gohman 140a73efac Avoid needlessly casting away const qualifiers.
llvm-svn: 46876
2008-02-08 03:26:46 +00:00
Evan Cheng 8d59dd119b Added missing entries in X86 load / store folding tables.
llvm-svn: 46866
2008-02-08 00:12:56 +00:00
Devang Patel eef348687e Begin setting features for target based on target triple string.
llvm-svn: 46863
2008-02-07 22:32:50 +00:00
Evan Cheng 6a80462568 Remove remnant of load folding in local register allocator. Patch by Holger Schurig.
llvm-svn: 46861
2008-02-07 19:46:55 +00:00
Dan Gohman 16d4bc3dc0 Follow Chris' suggestion; change the PseudoSourceValue accessors
to return pointers instead of references, since this is always what
is needed.

llvm-svn: 46857
2008-02-07 18:41:25 +00:00
Dan Gohman 63a8452e9c Add SourceValue information for outgoing argument stores on x86.
llvm-svn: 46854
2008-02-07 16:28:05 +00:00
Dan Gohman b781c79d2c Don't abort if a MemOperand is missing a SourceValue; just print it
as <unknown>. And make some minor adjustments to the MemOperand
dump format.

llvm-svn: 46853
2008-02-07 16:18:00 +00:00
Evan Cheng a20a773654 Fix a x86-64 codegen deficiency. Allow gv + offset when using rip addressing mode.
Before:
_main:
        subq    $8, %rsp
        leaq    _X(%rip), %rax
        movsd   8(%rax), %xmm1
        movss   _X(%rip), %xmm0
        call    _t
        xorl    %ecx, %ecx
        movl    %ecx, %eax
        addq    $8, %rsp
        ret
Now:
_main:
        subq    $8, %rsp
        movsd   _X+8(%rip), %xmm1
        movss   _X(%rip), %xmm0
        call    _t
        xorl    %ecx, %ecx
        movl    %ecx, %eax
        addq    $8, %rsp
        ret

Notice there is another idiotic codegen issue that needs to be fixed asap:
xorl    %ecx, %ecx
movl    %ecx, %eax

llvm-svn: 46850
2008-02-07 08:53:49 +00:00
Evan Cheng 1bc1cae318 In some cases, e.g. ADD32ri, no transformation is made. Guide against it.
llvm-svn: 46849
2008-02-07 08:29:53 +00:00
Nick Lewycky 7c1d787977 Don't make up new directives. (".set_foobar")
llvm-svn: 46848
2008-02-07 06:36:26 +00:00
Dan Gohman b3efe03672 Fix a typo in a comment.
llvm-svn: 46836
2008-02-07 02:30:40 +00:00
Dan Gohman 4f26eb7270 Add support to FoldingSet for hashing APInt objects.
llvm-svn: 46833
2008-02-06 23:09:15 +00:00
Dan Gohman 2d489b5081 Re-apply the memory operand changes, with a fix for the static
initializer problem, a minor tweak to the way the
DAGISelEmitter finds load/store nodes, and a renaming of the
new PseudoSourceValue objects.

llvm-svn: 46827
2008-02-06 22:27:42 +00:00
Evan Cheng 127b41500c It's PR1925, not PR1609.
llvm-svn: 46825
2008-02-06 22:07:17 +00:00
Bill Wendling c676a0329c Temporarily reverting:
http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20080128/057882.html

This is causing a miscompilation on PPC G5 and just now seeing it on iMac x86-64.

llvm-svn: 46822
2008-02-06 20:03:07 +00:00
Evan Cheng 1ec748c784 Fix a number of local register allocator issues: PR1609.
llvm-svn: 46821
2008-02-06 19:16:53 +00:00
Chris Lattner 47ce2b2d22 some more notes.
llvm-svn: 46818
2008-02-06 18:32:06 +00:00
Chris Lattner 0ec3504e95 make it clear :)
llvm-svn: 46817
2008-02-06 18:00:48 +00:00
Chris Lattner cdc44ed525 add a bunch of random notes and fix some issues noticed by Gabor.
This is not ready for review or hacking, this is a work in progress :)

llvm-svn: 46816
2008-02-06 18:00:06 +00:00
Evan Cheng 8291ab4449 RegAllocaLocal still *requires* LiveVariables since it runs PHIElimination, followed by TwoAddress which requires LiveVariables. We cannot run LiveVariables on non-SSA code.
llvm-svn: 46813
2008-02-06 08:00:32 +00:00
Chris Lattner 7422bce18a a starter shell for 2.2 release notes
llvm-svn: 46810
2008-02-06 06:30:34 +00:00
Tanya Lattner 182a9fd39f Throttle the non-local dependence analysis for basic blocks with more than 50 predecessors. Added command line option to play with this threshold.
llvm-svn: 46790
2008-02-06 00:54:55 +00:00
Anton Korobeynikov c107b133ba Don't dereference an invalid pointer if string is empty.
llvm-svn: 46781
2008-02-05 23:34:40 +00:00
Evan Cheng 87fbd66f9f Fix PR1975: dag isel emitter produces patterns that isel wrong flag result.
llvm-svn: 46776
2008-02-05 22:50:29 +00:00
Evan Cheng 0f32916111 Move to getCALLSEQ_END to ensure CALLSEQ_END node produces a flag. This is consistent with the definition in td file.
llvm-svn: 46775
2008-02-05 22:44:06 +00:00
Chris Lattner a838141957 Make RenamePass faster by making the 'is this a new phi node'
check more intelligent.  This speeds up mem2reg from 5.29s to 
0.79s on a synthetic testcase with tons of predecessors and
phi nodes.

llvm-svn: 46767
2008-02-05 21:26:23 +00:00
Dale Johannesen d88f1d060e Implement sseregparm.
llvm-svn: 46764
2008-02-05 20:46:33 +00:00
Evan Cheng 8d78b0597b If a vr is already marked alive in a bb, then it has PHI uses that are visited earlier, then it is not killed in the def block (i.e. not dead).
llvm-svn: 46763
2008-02-05 20:04:18 +00:00
Chris Lattner e115fb5b87 regenerate
llvm-svn: 46761
2008-02-05 19:43:53 +00:00
Chris Lattner 42e35d4fcc Make the check for GCC version more robust, fix shared library
dependencies in makefile, and fix llvm_cv_no_link_all_option
on darwin.

Patch by Shantonu Sen, more info here:
http://lists.cs.uiuc.edu/pipermail/llvmdev/2008-February/012410.html

llvm-svn: 46760
2008-02-05 19:43:40 +00:00
Ted Kremenek 571e9b409e Added FoldingSet profiling support to ImmutableSet.
llvm-svn: 46757
2008-02-05 18:50:25 +00:00
Ted Kremenek e96bd56de9 Changed profiling method for ImmutableMap to once again just use its
unique ImutAVLTree* for profiling.

Modified ImutAVLTree:
 (1) changed ComputeHash() to ComputeDigest() and
 (2) changed Profile() to use the computed digest and
 (3) modified insertion of IMutAVLTree into the FoldingSet owned by
     the ImutAVLTreeFactory object to use profiling instead of computing
     a direct hash.  This fixes a bug where our abuse of the FoldingSet would
     not work when the FoldingSet was resized.

llvm-svn: 46753
2008-02-05 17:30:43 +00:00
Nate Begeman f3c89be368 Ident mnemonics appropriately
llvm-svn: 46746
2008-02-05 08:49:09 +00:00
Chris Lattner f4ed277135 dump the module *before* we delete it, not after.
llvm-svn: 46741
2008-02-05 06:18:42 +00:00
Chris Lattner 682a7dc653 Fix a bug compiling PR1978 (perhaps not the only one though) which
was incorrectly simplifying "x == (gep x, 1, i)" into false, even 
though i could be negative.  As it turns out, all the code to 
handle this already existed, we just need to disable the incorrect
optimization case and let the general case handle it.

llvm-svn: 46739
2008-02-05 04:45:32 +00:00
Owen Anderson 1de5997119 Fix an obscure read-after-free bug that Duncan found.
llvm-svn: 46738
2008-02-05 04:34:03 +00:00
Dale Johannesen 969104db55 Missed one.
llvm-svn: 46733
2008-02-05 01:12:10 +00:00
Evan Cheng baba47f1ea This should also work on x86 now.
llvm-svn: 46730
2008-02-05 00:25:31 +00:00
Evan Cheng eefc0a2410 Unbreak teh build.
llvm-svn: 46729
2008-02-05 00:25:13 +00:00
Dale Johannesen b53713f26b Do not unconditionally redefine vec_ext_v16qi and
vec_ext_v4si builtins.  This is a hack; they should
be defined here, then resolved in the X86 BE.
However there is enough other stuff missing in the
X86 BE for SSE41 that this will do for now.

llvm-svn: 46727
2008-02-04 23:27:29 +00:00
Evan Cheng ac3cd69add Typo.
llvm-svn: 46725
2008-02-04 23:10:38 +00:00
Evan Cheng 2cb9068c78 Dwarf requires variable entries to be in the source order. Right now, since we are recording variable information at isel time this means parameters would appear in the reverse order. The short term fix is to issue recordVariable() at asm printing time instead.
llvm-svn: 46724
2008-02-04 23:06:48 +00:00
Nate Begeman 5420516b3f This method should be virtual
llvm-svn: 46723
2008-02-04 23:04:24 +00:00
Nate Begeman ef14d5f926 Eliminate some redundant code.
llvm-svn: 46720
2008-02-04 21:44:06 +00:00
Ted Kremenek b1e5bcb719 Modified 'Profile' method of ImmutableMap to use the 'Profile' method
of the contained ImutAVLTree root.

llvm-svn: 46719
2008-02-04 21:17:02 +00:00
Devang Patel 623df7620d Do not set time out, lets assume assembler will do its job in reasonable amount of time.
llvm-svn: 46718
2008-02-04 21:16:10 +00:00
Ted Kremenek e036344e21 Modified node creation of ImutAVLTree to do a hash lookup for an existing
node in the FoldingSet of nodes held by the Factory object.  If we
we find a node with a matching hash, we do a full structural comparison.
Nodes are also now inserted into the FoldingSet only when we mark them
Immutable, as their children can change during intermediate-rebalancing.

The 'Profile' method for ImutAVLTree is no longer used when looking up
existing ImutAVLTrees with a given set of contents; instead the Profile method
is used by other clients that wish to insert such a tree into a folding set.
This means that we are not using FoldingSet in ImutAVLTreeFactory in the way
it was intended, but instead are using it as an opaque hashtable.

llvm-svn: 46717
2008-02-04 21:15:24 +00:00
Ted Kremenek e288786356 Added "bucket_iterators" to FoldingSet. Bucket iterators allow iteration
over all the nodes in a particular bucket.

llvm-svn: 46716
2008-02-04 21:11:17 +00:00
Devang Patel 3d4f1b3695 Set error message.
Patch by Shantonu Sen.

llvm-svn: 46715
2008-02-04 20:57:54 +00:00
Duncan Sands 3342d4083f Crashes LegalizeTypes with "Do not know how to
expand the result of this operator!" (node: ctlz).

llvm-svn: 46713
2008-02-04 18:07:02 +00:00
Duncan Sands ff1a444879 Crashes LegalizeTypes with "Do not know how to split
this operator's operand" (node: extract_subvector).

llvm-svn: 46712
2008-02-04 18:05:42 +00:00
Chris Lattner 69f90ccb17 remove target triple to make this test more "generic"
llvm-svn: 46711
2008-02-04 18:02:37 +00:00
Ted Kremenek 726933a589 Fixed 80 col. violation.
llvm-svn: 46709
2008-02-04 17:14:20 +00:00
Ted Kremenek 0bf88b9a51 constified operator~().
llvm-svn: 46707
2008-02-04 16:57:26 +00:00
Duncan Sands 331cd706f5 Crashed the new type legalizer. Not likely to catch
any bugs in the future since to get the crash you also
need hacked in fake libcall support (which creates odd
but legal trees), but since adding it doesn't hurt...
Thanks to Chris for this ultimately reduced version.

llvm-svn: 46706
2008-02-04 09:40:27 +00:00
Duncan Sands 354e353220 I don't see how NodeUpdated can be called with a
ReadyToProcess node - add an assertion to check
this.  Add an assertion to NodeDeleted that checks
that processed/ready nodes are indeed not deleted.
It is because they are never deleted that none of
the maps can have a deleted node as the source of
a mapping.  It does however seem to be possible in
theory to have a deleted value as the target of a
mapping, however this has not yet been spotted in
the wild.  Still mulling on what to do about this.
[The theoretical situation is this: a node A is
expanded/promoted/whatever to a newly created node
B.  Thus A->B is added to a map.  When the subtree
rooted at B is legalized it is conceivable that B
is deleted due to RAUW on a node somewhere above
it].

llvm-svn: 46705
2008-02-04 09:29:17 +00:00
Nate Begeman e146c0e3fd The rest of the SSE4.1 intrinsic patterns that are obvious to me. Getting
Evan's help with the rest.

llvm-svn: 46697
2008-02-04 06:00:24 +00:00
Nate Begeman ccdfd4aa17 Some more SSE 4.1 intrinsic patterns.
llvm-svn: 46696
2008-02-04 05:34:34 +00:00
Owen Anderson 1a78ae76e4 Make this test more aggressive, to cover recent improvements.
llvm-svn: 46695
2008-02-04 04:55:24 +00:00
Owen Anderson a82c9931f4 Be more precise when eliminating pointers bue to memcpy's. This allows more
stores to be deleted in some cases.

llvm-svn: 46694
2008-02-04 04:53:00 +00:00
Owen Anderson c4a7c41869 Allow GVN to hack on memcpy's, making them open to further optimization.
llvm-svn: 46693
2008-02-04 02:59:58 +00:00
Nick Lewycky 56178bc6ad Tag this test with the PR reference.
llvm-svn: 46688
2008-02-03 16:35:19 +00:00
Nick Lewycky 3b59214320 There are some cases where icmp(add) can be folded into a new icmp. Handle them.
llvm-svn: 46687
2008-02-03 16:33:09 +00:00
Nick Lewycky c7a4ba044b Hack on vectors too.
llvm-svn: 46684
2008-02-03 08:19:11 +00:00
Nick Lewycky e6e3a7f6ea Fold away one multiply in instcombine. This would normally be caught in
reassociate anyways, but they could be generated during instcombine's run.

llvm-svn: 46683
2008-02-03 07:42:09 +00:00
Chris Lattner c41e535df1 Fix typo
llvm-svn: 46682
2008-02-03 07:30:27 +00:00
Nate Begeman e14fdfaecd SSE 4.1 Intrinsics and detection
llvm-svn: 46681
2008-02-03 07:18:54 +00:00
Chris Lattner 62f67ea73a handle the case where a node can become ready to process
multiple times due to a RAUW.

llvm-svn: 46680
2008-02-03 07:13:32 +00:00
Chris Lattner 4e9898825e Use the new infrastructure for listening to node updates to
keep the LegalizeTypes node flags up to date when doing a RAUW.
This fixes a nasty bug that Duncan ran into and makes the 
previous (nonbuggy case) more efficent.

llvm-svn: 46679
2008-02-03 07:08:51 +00:00
Chris Lattner d2d166ea9f the world doesn't need my debugging code.
llvm-svn: 46678
2008-02-03 07:01:05 +00:00
Chris Lattner b2b9d6f0fb Change the 'global modification' APIs in SelectionDAG to take a new
DAGUpdateListener object pointer instead of just returning a vector 
of deleted nodes.  This makes the interfaces more efficient (no more
allocating a vector [at least a malloc], filling it in, then walking
it) and more clean.  This also allows the client to be notified of
nodes that are *changed* but not deleted.

llvm-svn: 46677
2008-02-03 06:49:24 +00:00
Chris Lattner 1770fb883b explicitly include Compiler.h instead of getting it from tblgen in the middle of a class.
llvm-svn: 46676
2008-02-03 05:43:57 +00:00
Chris Lattner 7685891aa3 Generalize the SDOperand->SDOperand form of
SelectionDAG::ReplaceAllUsesWith to handle replacement of
an SDOperand with *any* sdoperand, not just one for a node with
a single result.  Note that this has a horrible FIXME'd hack in it
to work around PR1975.  This should be removed when PR1975 is fixed.

llvm-svn: 46674
2008-02-03 03:35:22 +00:00
Chris Lattner e99faac423 don't do ReplaceUses on a result that doesn't exist.
llvm-svn: 46673
2008-02-03 03:20:59 +00:00
Chris Lattner f34dfe4f28 add a -view-legalize-types-dags option, for viewing the dags going into legalize types.
llvm-svn: 46672
2008-02-03 02:05:04 +00:00
Evan Cheng 32e5347eb8 Get rid of the annoying blank lines before labels.
llvm-svn: 46667
2008-02-02 08:39:46 +00:00
Nick Lewycky f5b9938ef6 Don't use uninitialized values. Fixes vec_align.ll on X86 Linux.
llvm-svn: 46666
2008-02-02 08:29:58 +00:00
Evan Cheng 2aa360adf8 Unbreak ppc debug support.
llvm-svn: 46665
2008-02-02 05:06:29 +00:00
Evan Cheng efd142a920 SDIsel processes llvm.dbg.declare by recording the variable debug information descriptor and its corresponding stack frame index in MachineModuleInfo. This only works if the local variable is "homed" in the stack frame. It does not work for byval parameter, etc.
Added ISD::DECLARE node type to represent llvm.dbg.declare intrinsic. Now the intrinsic calls are lowered into a SDNode and lives on through out the codegen passes.
For now, since all the debugging information recording is done at isel time, when a ISD::DECLARE node is selected, it has the side effect of also recording the variable. This is a short term solution that should be fixed in time.

llvm-svn: 46659
2008-02-02 04:07:54 +00:00