Duncan Sands
d885dbdf9e
Add truncate and AssertZext result expansion.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46926 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-10 10:08:52 +00:00
Bill Wendling
91b9ad1824
Return "(c1 + c2)" instead of yet another ADD node (which made this a
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no-op).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46922 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-10 08:10:24 +00:00
Chris Lattner
be036a94c3
add anote
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46918 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-10 01:01:35 +00:00
Nick Lewycky
16b0bd6c83
Match GCC's behaviour for these sections.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46916 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-10 00:03:54 +00:00
Nate Begeman
fea2be50b9
memopv16i8 had wrong alignment requirement, would have broken pabsb
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pabs{b,w,d} are not two address
fix extract-to-mem sse4 ops
add sse4 vector sign extend nodes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46915 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-09 23:46:37 +00:00
Wojciech Matyjewicz
3913187bf6
We should check that existing cast operation has the appropriate opcode before we reuse it.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46908 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-09 18:30:13 +00:00
Evan Cheng
63a18c491a
Remove unused hidden option.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46903 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-09 08:36:28 +00:00
Nate Begeman
1426d52cab
Skeleton of insert and extract matching, more to come
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46902 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-09 01:38:08 +00:00
Nate Begeman
b5af3344c1
Tablegen support for insert & extract element matching
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46901 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-09 01:37:05 +00:00
Chris Lattner
9071dd3a57
check that terminators only occur at the end of a block. This catches the
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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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46900 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-09 01:06:01 +00:00
Dan Gohman
6394b099e8
Change ConstantSDNode to store an APInt instead of a uint64_t, and
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begin adding some methods to use it this way.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46899 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-08 22:59:30 +00:00
Devang Patel
82ada54da0
Fix PR 1995.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46898 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-08 22:49:13 +00:00
Evan Cheng
f2f8c2ae07
Forgot these files.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46896 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-08 22:05:27 +00:00
Evan Cheng
bbd8322daa
Also print alignment.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46895 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-08 22:05:07 +00:00
Evan Cheng
5fd79d0560
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.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46893 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-08 21:20:40 +00:00
Dale Johannesen
0c191872ab
64-bit (MMX) vectors do not need restrictive alignment.
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128-bit vectors need it only when SSE is on.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46890 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-08 19:48:20 +00:00
Dan Gohman
60783304f6
Avoid needlessly casting away const qualifiers.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46877 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-08 03:29:40 +00:00
Dan Gohman
547ca537b6
Avoid needlessly casting away const qualifiers.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46876 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-08 03:26:46 +00:00
Evan Cheng
33663fc104
Added missing entries in X86 load / store folding tables.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46866 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-08 00:12:56 +00:00
Evan Cheng
27240c7d50
Remove remnant of load folding in local register allocator. Patch by Holger Schurig.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46861 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-07 19:46:55 +00:00
Dan Gohman
3069b87437
Follow Chris' suggestion; change the PseudoSourceValue accessors
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to return pointers instead of references, since this is always what
is needed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46857 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-07 18:41:25 +00:00
Dan Gohman
4fdad172de
Add SourceValue information for outgoing argument stores on x86.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46854 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-07 16:28:05 +00:00
Dan Gohman
2bfe6ff605
Don't abort if a MemOperand is missing a SourceValue; just print it
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as <unknown>. And make some minor adjustments to the MemOperand
dump format.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46853 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-07 16:18:00 +00:00
Evan Cheng
be3bf42331
Fix a x86-64 codegen deficiency. Allow gv + offset when using rip addressing mode.
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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
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46850 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-07 08:53:49 +00:00
Evan Cheng
15246738f2
In some cases, e.g. ADD32ri, no transformation is made. Guide against it.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46849 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-07 08:29:53 +00:00
Nick Lewycky
33d4f7792f
Don't make up new directives. (".set_foobar")
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46848 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-07 06:36:26 +00:00
Dan Gohman
b3f5cfc670
Fix a typo in a comment.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46836 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-07 02:30:40 +00:00
Dan Gohman
167b8bc24d
Add support to FoldingSet for hashing APInt objects.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46833 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-06 23:09:15 +00:00
Dan Gohman
69de1932b3
Re-apply the memory operand changes, with a fix for the static
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initializer problem, a minor tweak to the way the
DAGISelEmitter finds load/store nodes, and a renaming of the
new PseudoSourceValue objects.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46827 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-06 22:27:42 +00:00
Bill Wendling
e00fec554b
Temporarily reverting:
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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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46822 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-06 20:03:07 +00:00
Evan Cheng
2fc628d662
Fix a number of local register allocator issues: PR1609.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46821 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-06 19:16:53 +00:00
Evan Cheng
22ff3eeebe
RegAllocaLocal still *requires* LiveVariables since it runs PHIElimination, followed by TwoAddress which requires LiveVariables. We cannot run LiveVariables on non-SSA code.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46813 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-06 08:00:32 +00:00
Tanya Lattner
63aa160b27
Throttle the non-local dependence analysis for basic blocks with more than 50 predecessors. Added command line option to play with this threshold.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46790 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-06 00:54:55 +00:00
Evan Cheng
a58891ff1e
Fix PR1975: dag isel emitter produces patterns that isel wrong flag result.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46776 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-05 22:50:29 +00:00
Evan Cheng
ebaaa91094
Move to getCALLSEQ_END to ensure CALLSEQ_END node produces a flag. This is consistent with the definition in td file.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46775 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-05 22:44:06 +00:00
Chris Lattner
2663ffe751
Make RenamePass faster by making the 'is this a new phi node'
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check more intelligent. This speeds up mem2reg from 5.29s to
0.79s on a synthetic testcase with tons of predecessors and
phi nodes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46767 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-05 21:26:23 +00:00
Dale Johannesen
e672af15d6
Implement sseregparm.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46764 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-05 20:46:33 +00:00
Evan Cheng
bb4151bd1f
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).
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46763 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-05 20:04:18 +00:00
Nate Begeman
5a804e3e21
Ident mnemonics appropriately
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46746 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-05 08:49:09 +00:00
Chris Lattner
7c95debb49
Fix a bug compiling PR1978 (perhaps not the only one though) which
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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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46739 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-05 04:45:32 +00:00
Owen Anderson
a8701a6c62
Fix an obscure read-after-free bug that Duncan found.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46738 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-05 04:34:03 +00:00
Evan Cheng
fc718542a3
Typo.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46725 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-04 23:10:38 +00:00
Evan Cheng
4e3f5a4e9c
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.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46724 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-04 23:06:48 +00:00
Nate Begeman
c451ac0a42
This method should be virtual
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46723 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-04 23:04:24 +00:00
Nate Begeman
48a65511d0
Eliminate some redundant code.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46720 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-04 21:44:06 +00:00
Ted Kremenek
26e3c445fc
Added "bucket_iterators" to FoldingSet. Bucket iterators allow iteration
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over all the nodes in a particular bucket.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46716 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-04 21:11:17 +00:00
Devang Patel
a1e4bba98a
Set error message.
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Patch by Shantonu Sen.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46715 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-04 20:57:54 +00:00
Ted Kremenek
27a8e0dc2f
Fixed 80 col. violation.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46709 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-04 17:14:20 +00:00
Duncan Sands
6cb7e6d36b
I don't see how NodeUpdated can be called with a
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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].
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46705 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-04 09:29:17 +00:00
Nate Begeman
204e84e138
The rest of the SSE4.1 intrinsic patterns that are obvious to me. Getting
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Evan's help with the rest.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46697 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-04 06:00:24 +00:00
Nate Begeman
2f6f1c02ca
Some more SSE 4.1 intrinsic patterns.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46696 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-04 05:34:34 +00:00
Owen Anderson
c69ace3a64
Be more precise when eliminating pointers bue to memcpy's. This allows more
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stores to be deleted in some cases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46694 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-04 04:53:00 +00:00
Owen Anderson
6f7a52d300
Allow GVN to hack on memcpy's, making them open to further optimization.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46693 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-04 02:59:58 +00:00
Nick Lewycky
5be2920149
There are some cases where icmp(add) can be folded into a new icmp. Handle them.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46687 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-03 16:33:09 +00:00
Nick Lewycky
0c2c3f6e81
Hack on vectors too.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46684 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-03 08:19:11 +00:00
Nick Lewycky
b6eabff169
Fold away one multiply in instcombine. This would normally be caught in
...
reassociate anyways, but they could be generated during instcombine's run.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46683 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-03 07:42:09 +00:00
Chris Lattner
9d3e5d476c
Fix typo
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46682 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-03 07:30:27 +00:00
Nate Begeman
63ec90a6a8
SSE 4.1 Intrinsics and detection
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46681 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-03 07:18:54 +00:00
Chris Lattner
fcd8e9e3a2
handle the case where a node can become ready to process
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multiple times due to a RAUW.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46680 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-03 07:13:32 +00:00
Chris Lattner
42bd25f8ec
Use the new infrastructure for listening to node updates to
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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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46679 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-03 07:08:51 +00:00
Chris Lattner
d8cd3be370
the world doesn't need my debugging code.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46678 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-03 07:01:05 +00:00
Chris Lattner
f8dc0617ba
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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46677 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-03 06:49:24 +00:00
Chris Lattner
3d62d780ab
explicitly include Compiler.h instead of getting it from tblgen in the middle of a class.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46676 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-03 05:43:57 +00:00
Chris Lattner
11d049c87f
Generalize the SDOperand->SDOperand form of
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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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46674 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-03 03:35:22 +00:00
Chris Lattner
a47b9bcbde
don't do ReplaceUses on a result that doesn't exist.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46673 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-03 03:20:59 +00:00
Chris Lattner
a658baba78
add a -view-legalize-types-dags option, for viewing the dags going into legalize types.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46672 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-03 02:05:04 +00:00
Evan Cheng
4eecdeb3fa
Get rid of the annoying blank lines before labels.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46667 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-02 08:39:46 +00:00
Nick Lewycky
916a9f071f
Don't use uninitialized values. Fixes vec_align.ll on X86 Linux.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46666 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-02 08:29:58 +00:00
Evan Cheng
fcf5d4f456
Unbreak ppc debug support.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46665 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-02 05:06:29 +00:00
Evan Cheng
a844bdeab3
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.
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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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46659 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-02 04:07:54 +00:00
Devang Patel
1cf47cb217
Add comment explaining what is lower level analysis pass.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46658 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-02 01:43:30 +00:00
Gordon Henriksen
e62a8a353c
Fixing a bug creating floating point constants of type other
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than double through the C bindings. Thanks to Tomas Lindquist
Olsen for reporting it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46656 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-02 01:07:50 +00:00
Evan Cheng
b8033e821d
Frame index can be negative.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46655 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-02 00:17:00 +00:00
Lauro Ramos Venancio
859efca7f9
CBackend: Implement unaligned load/store.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46646 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-01 21:25:59 +00:00
Duncan Sands
532d022794
Don't drop function/call return attributes like 'nounwind'.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46645 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-01 20:37:16 +00:00
Evan Cheng
1b08bbca55
Remove the nasty LABEL hack with a much less evil one. Now llvm.dbg.func.start implies a stoppoint is set. SelectionDAGISel records a new source line but does not create a ISD::LABEL node for this special stoppoint. Asm printer will magically print this label. This ensures nothing is emitted before.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46635 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-01 09:10:45 +00:00
Evan Cheng
a647c92ec2
Rename RecordLabel to RecordSourceLine because that's what it is doing.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46628 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-01 02:05:57 +00:00
Evan Cheng
334dc1f58d
Revert 46556 and 46585. Dan please fix the PseudoSourceValue problem and re-commit.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46623 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-31 21:00:00 +00:00
Dale Johannesen
b63fa050b7
Chris' change to print an approximation to long doubles
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exposed a bug in APFloat's long double->double conversion of
NaNs. Broke several things in the ieee part of gcc testsuite.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46617 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-31 18:34:01 +00:00
Evan Cheng
7bdc5f734f
Add a comment for a nasty short term hack.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46610 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-31 10:05:13 +00:00
Evan Cheng
bb81d97feb
Add an extra operand to LABEL nodes which distinguishes between debug, EH, or misc labels. This fixes the EH breakage. However I am not convinced this is *the* solution.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46609 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-31 09:59:15 +00:00
Christopher Lamb
8535624739
Allow ComplexExpressions in InstrInfo.td files to be slightly more... complex! ComplexExpressions can now have attributes which affect how TableGen interprets
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the pattern when generating matchin code.
The first (and currently, only) attribute causes the immediate parent node of the ComplexPattern operand to be passed into the matching code rather than the node at the root of the entire DAG containing the pattern.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46606 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-31 07:27:46 +00:00
Christopher Lamb
175e81598a
Add more thorough error checking for NULL register classes.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46605 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-31 07:09:08 +00:00
Evan Cheng
c67aa7cbd5
Add x86 specific getFrameIndexOffset(). This fixes local variable debugging info.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46598 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-31 04:06:00 +00:00
Evan Cheng
72bebb9205
MRegisterInfo::getLocation() is a really bad idea. Its function is to calculate the offset from frame pointer to a stack slot and then storing the delta in a MachineLocation object. The name is bad (it implies a getter), and MRegisterInfo doesn't need to know about MachineLocation.
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Replace getLocation() with getFrameIndexOffset() which returns the delta from frame pointer to stack slot. Dwarf writer can then use the information for whatever it wants.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46597 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-31 03:37:28 +00:00
Evan Cheng
0a75538a68
Makes the same change in ppc backend: avoid inserting prologue before debug labels.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46596 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-31 03:33:38 +00:00
Dan Gohman
fa9b80eb64
Avoid unnecessarily casting away const, fixing a FIXME.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46591 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-31 01:05:10 +00:00
Dan Gohman
bbfb9c57c7
Avoid unnecessarily casting away const.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46590 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-31 01:01:48 +00:00
Dan Gohman
1a0248690a
Rename ISD::FLT_ROUNDS to ISD::FLT_ROUNDS_ to avoid conflicting
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with the real FLT_ROUNDS (defined in <float.h>).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46587 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-31 00:41:03 +00:00
Evan Cheng
00dff8dda2
Also avoid adding callee save code before debug labels.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46586 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-31 00:27:49 +00:00
Dan Gohman
c6c391dadd
Create a new class, MemOperand, for describing memory references
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in the backend. Introduce a new SDNode type, MemOperandSDNode, for
holding a MemOperand in the SelectionDAG IR, and add a MemOperand
list to MachineInstr, and code to manage them. Remove the offset
field from SrcValueSDNode; uses of SrcValueSDNode that were using
it are all all using MemOperandSDNode now.
Also, begin updating some getLoad and getStore calls to use the
PseudoSourceValue objects.
Most of this was written by Florian Brander, some
reorganization and updating to TOT by me.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46585 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-31 00:25:39 +00:00
Evan Cheng
294e652491
Fixed a bug in MergeValueInAsValue() pointed out by David Greene. Replace val# with previous liverange's.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46579 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-30 22:44:55 +00:00
Evan Cheng
965d1b4bba
Treat the label for the first @llvm.dbg.stoppoint the same way as the dbg_func_start label. Make sure nothing else is inserted before them.
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Note this solution might be somewhat fragile since ISD::LABEL may be used for other
purposes. If that ends up to be an issue, we may need to introduce a different node
for debug labels.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46571 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-30 20:08:35 +00:00
Dale Johannesen
43b8f3b7d3
Adjust loop per review feedback.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46569 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-30 19:44:39 +00:00
Evan Cheng
6b2cf285bd
A semi-gross fix for a debug info issue. When inserting the "function start" label (i.e. first label in the entry block) take care to insert it at the beginning of the block.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46568 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-30 19:35:32 +00:00
Dale Johannesen
7757fff6ae
Accept getelementptr starting at GV with all 0 indices as a
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legitimate way of representing global variable GV in debug info.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46565 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-30 19:00:21 +00:00
Evan Cheng
ff9b373e8f
Even though InsertAtEndOfBasicBlock is an ugly hack it still deserves a proper name. Rename it to EmitInstrWithCustomInserter since it does not necessarily insert
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instruction at the end.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46562 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-30 18:18:23 +00:00
Dan Gohman
f38dc192dd
Add a new PseudoSourceValue class, which will be used to help track
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memory reference information in the backend. Most of this was written by
Florian Brander, cleanup and updating to TOT by me.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46556 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-30 16:35:31 +00:00
Nick Lewycky
b4b0417220
Remove a couple more cases of "getNumUses() == 0". No need to walk the linked
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list just to see if whether the list is empty.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46555 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-30 08:01:28 +00:00
Nick Lewycky
c7444498ee
Use empty() instead of comparing size() with zero.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46554 91177308-0d34-0410-b5e6-96231b3b80d8
2008-01-30 07:54:16 +00:00