970afd926f
Re-disable TBAA for now; it broke MultiSource/Applications/JM/lencod,
...
at least.
llvm-svn: 118890
2010-11-12 11:21:08 +00:00
0a9dd405a5
Fix memory access lowering on SPU, adding
...
support for the case where alignment<value size.
These cases were silently miscompiled before this patch.
Now they are overly verbose -especially storing is- and
any front-end should still avoid misaligned memory
accesses as much as possible. The bit juggling algorithm
added here probably has some room for improvement still.
llvm-svn: 118889
2010-11-12 10:14:03 +00:00
22d0492f34
Fix up a few more spots of addrmode2 (or not) changes that were
...
missed. Update some comments accordingly.
Fixes rdar://8652289
llvm-svn: 118888
2010-11-12 09:48:30 +00:00
ea18d8ec2d
Enable TBAA.
...
llvm-svn: 118884
2010-11-12 06:20:01 +00:00
c702ba6ca1
Fix some style issues in PBQP. Patch by David Blaikie.
...
llvm-svn: 118883
2010-11-12 05:47:21 +00:00
d4b7fff2e8
Enhance DSE to handle the case where a free call makes more than
...
one store dead. This is especially noticeable in
SingleSource/Benchmarks/Shootout/objinst.
llvm-svn: 118875
2010-11-12 02:19:17 +00:00
620c38f030
Filecheckize.
...
llvm-svn: 118874
2010-11-12 02:02:39 +00:00
6d95ed1760
Remove possibly useful info from comment, per Chris.
...
llvm-svn: 118865
2010-11-12 00:43:18 +00:00
03c0330176
Enable mips32 mul instruction. Patch by Akira Hatanaka <ahatanaka@mips.com>
...
llvm-svn: 118864
2010-11-12 00:38:32 +00:00
8a7f4dafe5
describe the preferred approach to silencing 'unused variable warnings' due to asserts.
...
llvm-svn: 118863
2010-11-12 00:19:41 +00:00
7fe1100c26
add operand iterator apis to MachineInstr, patch by ether zhhb.
...
llvm-svn: 118862
2010-11-12 00:00:21 +00:00
20b6fd7d5d
Start of support for binary emit of 16-it Thumb instructions.
...
llvm-svn: 118859
2010-11-11 23:41:09 +00:00
ce2250fba4
Fill out support for Thumb2 encodings of NEON instructions.
...
llvm-svn: 118854
2010-11-11 23:12:55 +00:00
8abdf4b6ea
The BRK instruction in the MicroBlaze is a branch-and-link.
...
llvm-svn: 118848
2010-11-11 22:21:08 +00:00
add50b0a5d
Doxygenify
...
llvm-svn: 118846
2010-11-11 21:51:44 +00:00
65316d6749
Add helper functions for computing the Location of load, store,
...
and vaarg instructions.
llvm-svn: 118845
2010-11-11 21:50:19 +00:00
bf65066a37
Fix tblgen instruction errors exposed by MC asm parser tests
...
Fix minimum 16-bit signed value error exposed by MC asm parser tests
Add initial MC asm parser tests for the MBlaze backend
llvm-svn: 118844
2010-11-11 21:40:53 +00:00
99a8cb4875
Add correct Thumb2 encodings for NEON vst[1,2,3,4] and vld[1,2,3,4].
...
llvm-svn: 118843
2010-11-11 21:36:43 +00:00
468638826e
Don't forget the TBAA info, if available.
...
llvm-svn: 118842
2010-11-11 21:27:26 +00:00
a826a88755
Factor out Instruction::isSafeToSpeculativelyExecute's code for
...
testing for dereferenceable pointers into a helper function,
isDereferenceablePointer. Teach it how to reason about GEPs
with simple non-zero indices.
Also eliminate ArgumentPromtion's IsAlwaysValidPointer,
which didn't check for weak externals or out of range gep
indices.
llvm-svn: 118840
2010-11-11 21:23:25 +00:00
a56a2e1fc5
Flesh out tests for Thumb2 encodings of NEON instructions.
...
llvm-svn: 118837
2010-11-11 21:15:47 +00:00
22e0e1cecb
Delete unneeded ssp attributes.
...
llvm-svn: 118836
2010-11-11 21:08:46 +00:00
7ae11c6962
Revert the accidental commit I made reverting the previous commit.
...
llvm-svn: 118835
2010-11-11 20:50:14 +00:00
ba321cb120
Trailing whitespace.
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llvm-svn: 118831
2010-11-11 20:16:23 +00:00
c33f28bf90
ARM fixup encoding for direct call instructions (BL).
...
llvm-svn: 118829
2010-11-11 20:05:40 +00:00
b90f7004cf
Revert this temporarily.
...
llvm-svn: 118827
2010-11-11 19:47:02 +00:00
e6283f950d
Change the prologue and epilogue to use push/pop for the low ARM registers.
...
llvm-svn: 118823
2010-11-11 19:26:03 +00:00
7dacf8f3f3
Avoid calling alias on non-pointer values.
...
llvm-svn: 118822
2010-11-11 19:23:51 +00:00
7ffe3b35ac
Add support for Thumb2 encodings of NEON data processing instructions, using the new PostEncoderMethod infrastructure.
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More tests to come.
llvm-svn: 118819
2010-11-11 19:07:48 +00:00
84d031870c
Mark labels declared in tls sections as STT_TLS. This matches the behavior of
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gas.
llvm-svn: 118818
2010-11-11 19:04:55 +00:00
d1a6f5a384
Fixed some bugs in MBlaze asm parser that were introduced when removing OwningPtrs from the code.
...
llvm-svn: 118807
2010-11-11 18:41:33 +00:00
932aab3cbf
add a note
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llvm-svn: 118806
2010-11-11 18:23:57 +00:00
a3e9a2298d
Initial comdat implementation.
...
llvm-svn: 118805
2010-11-11 18:13:52 +00:00
dcdfd8dd24
TBAA-enable ArgumentPromotion.
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llvm-svn: 118804
2010-11-11 18:09:32 +00:00
4162e3e213
Add a FIXME comment.
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llvm-svn: 118803
2010-11-11 18:08:43 +00:00
9d6d77a9f4
Encoding of destination fixup for ARM branch and conditional branch
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instructions.
llvm-svn: 118801
2010-11-11 18:04:49 +00:00
f11344d770
Check TRI->getReservedRegs because other allocators do it. Even though
...
it makes no sense for allocation_order iterators to visit reserved regs.
The inline spiller depends on AliasAnalysis.
Manage the Query state to avoid uninitialized or stale results.
llvm-svn: 118800
2010-11-11 17:46:29 +00:00
109dfe55d0
Add comments.
...
llvm-svn: 118799
2010-11-11 17:33:39 +00:00
fb6540c112
Make AliasedSymbol able to handle MCTargetExpr. They can get here if
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a weakref is used with a VariantKind.
llvm-svn: 118798
2010-11-11 17:24:43 +00:00
1d6aa32b87
add pr#
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llvm-svn: 118797
2010-11-11 17:17:56 +00:00
68685e644f
Encoding for ARM LDRSH_POST.
...
llvm-svn: 118794
2010-11-11 16:55:29 +00:00
fa7b55754c
Fix the symbol index of weak references. Also make RecordRelocation a bit
...
easier to read by having const references to the symbol, aliased symbol and
renamed symbol.
llvm-svn: 118793
2010-11-11 16:48:11 +00:00
c669dfa113
Add brief doxygen comments for AliasResult enum values.
...
llvm-svn: 118792
2010-11-11 16:37:38 +00:00
f51d06bbee
Include ImmutablePass passes in -debug-pass=Arguments.
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llvm-svn: 118790
2010-11-11 16:32:17 +00:00
6cf9bb45ad
Remove the memmove->memcpy optimization from CodeGen. MemCpyOpt does this.
...
llvm-svn: 118789
2010-11-11 16:24:49 +00:00
0cc4c7516e
Make Sink tbaa-aware.
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llvm-svn: 118788
2010-11-11 16:21:47 +00:00
c3b4ea7b7d
It's safe to sink some instructions which are not safe to speculatively
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execute. Make Sink's predicate more precise.
llvm-svn: 118787
2010-11-11 16:20:28 +00:00
f791007e81
CMake: Add the new option "LLVM_LIT_ARGS".
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Defaults:
if (MSVC OR XCODE): "-sv --no-progress-bar"
else: "-sv"
llvm-svn: 118776
2010-11-11 04:09:35 +00:00
19fa38000a
Remove some explicit arguments to getELFSection. This is
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a leftover from the removal of isExplicit.
llvm-svn: 118774
2010-11-11 03:40:25 +00:00
f18b951e18
Encoding for ARM LDRSH and LDRSH_PRE. Cannonicalize operand names.
...
llvm-svn: 118767
2010-11-11 01:55:59 +00:00
e967c0a795
Fix encoding of Ra register for ARM smla* instructions.
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llvm-svn: 118761
2010-11-11 01:27:41 +00:00
c88ce8329c
Add support for specifying a PostEncoderMethod, which can perform post-processing after the automated encoding of an instruction.
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Not yet used.
llvm-svn: 118759
2010-11-11 01:19:24 +00:00
607efcbc3e
ARM STRH encoding information.
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llvm-svn: 118757
2010-11-11 01:09:40 +00:00
3cb92d809b
Add a testcase which demonstrates alias analysis pass precedence.
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llvm-svn: 118755
2010-11-11 01:03:30 +00:00
9a2c6b8f3e
Delete SplittingSpiller. It was not being used by anyone, and it is being
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superceded by SplitKit.
llvm-svn: 118754
2010-11-11 00:52:44 +00:00
c87c843db7
It's not necessary to clear out the Size and TBAATag at each of
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these points.
llvm-svn: 118752
2010-11-11 00:42:22 +00:00
8bf3d832e5
Set NonLocalDepInfo's Size field to UnknownSize when invalidating
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it, so that it doesn't appear to be a known size.
llvm-svn: 118748
2010-11-11 00:20:27 +00:00
c400670bf1
Insert two blank SlotIndexes between basic blocks instead of just one.
...
This is the first small step towards using closed intervals for liveness instead
of the half-open intervals we're using now.
We want to be able to distinguish between a SlotIndex that represents a variable
being live-out of a basic block, and an index representing a variable live-in to
its successor.
That requires two separate indexes between blocks. One for live-outs and one for
live-ins.
With this change, getMBBEndIdx(MBB).getPrevSlot() becomes stable so it stays
greater than any instructions inserted at the end of MBB.
llvm-svn: 118747
2010-11-11 00:19:20 +00:00
fd0ad36c28
Document debuginfo-tests.
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llvm-svn: 118746
2010-11-11 00:13:39 +00:00
b057cf8146
Delete unused function.
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llvm-svn: 118743
2010-11-10 23:56:02 +00:00
3cb87f4c31
No need to add liveness that's already there.
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llvm-svn: 118742
2010-11-10 23:56:00 +00:00
868dd4e66a
Hook up AliasAnalysis in InlineSpiller. This is used for rematerializing
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constant loads.
llvm-svn: 118741
2010-11-10 23:55:56 +00:00
c4dd2349c7
Move LDM predicate operand encoding into base clase. Add STM missing STM
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encoding bits.
llvm-svn: 118738
2010-11-10 23:44:32 +00:00
cc4a491557
ARM LDM encoding for the mode (ia, ib, da, db) operand.
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llvm-svn: 118736
2010-11-10 23:38:36 +00:00
5a8d781caa
Factor some code into WriteSection.
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llvm-svn: 118733
2010-11-10 23:36:59 +00:00
58ef598cd1
Fix ARM encoding of non-return LDM instructions.
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llvm-svn: 118732
2010-11-10 23:18:49 +00:00
e39a9fcc0e
Fix ARM encoding of LDM+Return instruction.
...
llvm-svn: 118730
2010-11-10 23:12:48 +00:00
6791936848
When clearing a non-local pointer dependency cache entry, clear
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the reverse map too. This fixes seflhost build errors.
llvm-svn: 118729
2010-11-10 22:35:02 +00:00
eb97f59753
Update the section index map after we add the medatada sections.
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llvm-svn: 118728
2010-11-10 22:34:07 +00:00
364bf04267
Take care of special characters while creating named MDNode name to hold function specific local variable's info.
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This fixes radar 8653152. I am checking in testcase as a separate check-in.
llvm-svn: 118726
2010-11-10 22:19:21 +00:00
1801410fa8
Use SectionIndexMap in WriteSymbolTable to make it a little less brittle.
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llvm-svn: 118725
2010-11-10 22:16:43 +00:00
1d760ce8b3
Factor out the code for computing an AliasAnalysis::Location
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for a given instruction into a helper function.
llvm-svn: 118723
2010-11-10 21:51:35 +00:00
d634003ebd
Factor some code into ComputeIndexMap.
...
llvm-svn: 118722
2010-11-10 21:51:05 +00:00
2e8ca44b81
Fully invalidate cached results when a prior query's size or
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type is insufficient for, or incompatible with, the current query.
llvm-svn: 118721
2010-11-10 21:45:11 +00:00
ca52411955
Fix an issue where we tried to turn a v2f32 build_vector into a v4i32 build vector with 2 elts
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llvm-svn: 118720
2010-11-10 21:35:41 +00:00
8f7220e9fd
Reduce the maximum recursion depth, 5 seems pointlessly too much.
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Probably it should just be 1, but compromise with 3.
llvm-svn: 118718
2010-11-10 20:53:24 +00:00
0a6021a54d
Enhance GVN to do more precise alias queries for non-local memory
...
references. For example, this allows gvn to eliminate the load in
this example:
void foo(int n, int* p, int *q) {
p[0] = 0;
p[1] = 1;
if (n) {
*q = p[0];
}
}
llvm-svn: 118714
2010-11-10 20:37:15 +00:00
51d68339a2
Change the String<size> methods to take a fragment instead of a buffer.
...
llvm-svn: 118709
2010-11-10 20:02:59 +00:00
6ee7d9aade
Basic rematerialization during splitting.
...
Whenever splitting wants to insert a copy, it checks if the value can be
rematerialized cheaply instead.
Missing features:
- Delete instructions when all uses have been rematerialized.
- Truncate live ranges to the remaining uses after rematerialization.
llvm-svn: 118702
2010-11-10 19:31:50 +00:00
89eb6a8b94
RABasic is nearly functionally complete. There are a few remaining
...
benchmarks hitting an assertion.
Adds LiveIntervalUnion::collectInterferingVRegs.
Fixes "late spilling" by checking for any unspillable live vregs among
all physReg aliases.
llvm-svn: 118701
2010-11-10 19:18:47 +00:00
36ef57d2eb
Use MCSectionELF in places we know we have an ELF section.
...
llvm-svn: 118699
2010-11-10 19:05:07 +00:00
d209911642
Use getValueOperand() and getPointerOperand() on load and store
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instructions instead of hard-coding operand numbers.
llvm-svn: 118698
2010-11-10 19:03:33 +00:00
f899c87343
Rename AccessesArguments and AccessesArgumentsReadonly, and rewrite
...
their comments.
llvm-svn: 118696
2010-11-10 18:30:00 +00:00
f3b1bf1606
Teach InstructionSimplify how to look through PHI nodes. Since PHI
...
nodes can be used in loops, this could result in infinite looping
if there is no recursion limit, so add such a limit. It is also
used for the SelectInst case because in theory there could be an
infinite loop there too if the basic block is unreachable.
llvm-svn: 118694
2010-11-10 18:23:01 +00:00
ebfb6fb563
Fix a copy+pasto Duncan noticed.
...
llvm-svn: 118693
2010-11-10 18:18:23 +00:00
066c1bb1e9
Add a doesAccessArgPointees helper function, and update code to use
...
it, and to be consistent.
llvm-svn: 118692
2010-11-10 18:17:28 +00:00
ca21cd749e
Simplify and clean up MC symbol lookup for ARM constant pool values. This fixes
...
double quoting of ObjC symbol names in constant pool entries.
rdar://8652107
llvm-svn: 118688
2010-11-10 17:59:10 +00:00
2577580967
Factor out the code for testing whether a function accesses
...
arbitrary memory into a helper function, and adjust some comments.
llvm-svn: 118687
2010-11-10 17:34:04 +00:00
3cd9145da6
Give NonLocalDepResult a NonLocalDepEntry member, replacing
...
indivudal members holding the same data, to clarify the relationship
between NonLocalDepResult and NonLocalDepEntry.
llvm-svn: 118686
2010-11-10 17:15:52 +00:00
61cb245436
Detect if llvm-gcc is built on dragonegg.
...
Store the flags needed to disable optimizations and to emit LLVM-IR depending on
the version of llvm-gcc used.
llvm-svn: 118684
2010-11-10 16:31:34 +00:00
b39a89716f
Fix Whitespace.
...
llvm-svn: 118683
2010-11-10 15:06:00 +00:00
885f18cddf
System/Path: Update comments to match code.
...
llvm-svn: 118682
2010-11-10 15:05:50 +00:00
909d238eba
System/Win32/Path: Implement isSymLink.
...
llvm-svn: 118681
2010-11-10 15:05:39 +00:00
b0579e9d3f
Simplify binary operations where one operand is a select instruction.
...
The simplifications performed here never create new instructions, they
only return existing instructions (or a constant), and so are always a
win. In theory they should transform (for example)
%z = and i32 %x, %y
%s = select i1 %cond, i32 %y, i32 %z
%r = and i32 %x, %s
into
%r = and i32 %x, y
but in practice they get into a fight with instcombine, and lose.
Unfortunately instcombine does a poor job in this case. Nonetheless
I'm committing this transform to make it easier to discuss what to
do to make peace with instcombine.
llvm-svn: 118679
2010-11-10 13:00:08 +00:00
23ebef1456
Win32/Process.inc: [PR8527] Process::FileDescriptorIsDisplayed(fd) should not check by FILE_TYPE_CHAR. It must be better to check it with Console API.
...
The special file "NUL" is FILE_TYPE_CHAR with GetFileType(h). It was treated as display device and discarding output to NUL had failed. (eg. opt -o nul)
llvm-svn: 118678
2010-11-10 08:37:47 +00:00
812834b86c
There is no EndPtr anymore - reinterpret the original comment in terms
...
of InputData.
llvm-svn: 118677
2010-11-10 07:46:36 +00:00
f23b2d9d8d
Update ARMConstantPoolValue to not use a modifier string. Use an explicit
...
VariantKind marker to indicate the additional information necessary. Update
MC to handle the new Kinds. rdar://8647623
llvm-svn: 118671
2010-11-10 03:26:07 +00:00
a4ceea8cd8
Add a test to the previous added clo instruction. Patch by Akira again
...
llvm-svn: 118668
2010-11-10 02:22:44 +00:00
67fc18a493
Add clo instruction. Patch by Akira Hatanaka (ahatanaka@mips.com) with some minor tweaks
...
llvm-svn: 118667
2010-11-10 02:13:22 +00:00
0171dc30ff
When checking that the necessary bits are zero in
...
order to reduce ((x<<30)>>24) to x<<6, check the
correct bits. PR 8547.
llvm-svn: 118665
2010-11-10 01:30:56 +00:00
Dan Gohman