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Author SHA1 Message Date
Nick Lewycky
1acee08e53 Doxygenify 
llvm-svn: 118846
 2010-11-11 21:51:44 +00:00
Dan Gohman
f3bf6591e0 Add helper functions for computing the Location of load, store, 
and vaarg instructions.

llvm-svn: 118845
 2010-11-11 21:50:19 +00:00
Wesley Peck
0e937ae80d 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
Owen Anderson
0913dac245 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
Dan Gohman
97ce60bfa4 Don't forget the TBAA info, if available. 
llvm-svn: 118842
 2010-11-11 21:27:26 +00:00
Dan Gohman
b20b7d2ec2 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
Owen Anderson
7fda1a6efd Flesh out tests for Thumb2 encodings of NEON instructions. 
llvm-svn: 118837
 2010-11-11 21:15:47 +00:00
Dan Gohman
139b090e0e Delete unneeded ssp attributes. 
llvm-svn: 118836
 2010-11-11 21:08:46 +00:00
Eric Christopher
474a93ff76 Revert the accidental commit I made reverting the previous commit. 
llvm-svn: 118835
 2010-11-11 20:50:14 +00:00
Jim Grosbach
b48a272807 Trailing whitespace. 
llvm-svn: 118831
 2010-11-11 20:16:23 +00:00
Jim Grosbach
cc8e5dc0c6 ARM fixup encoding for direct call instructions (BL). 
llvm-svn: 118829
 2010-11-11 20:05:40 +00:00
Eric Christopher
e7f27cf66a Revert this temporarily. 
llvm-svn: 118827
 2010-11-11 19:47:02 +00:00
Eric Christopher
beb7a50acb 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
Dan Gohman
b68f197748 Avoid calling alias on non-pointer values. 
llvm-svn: 118822
 2010-11-11 19:23:51 +00:00
Owen Anderson
f43f09f6f6 Add support for Thumb2 encodings of NEON data processing instructions, using the new PostEncoderMethod infrastructure. 
More tests to come.

llvm-svn: 118819
 2010-11-11 19:07:48 +00:00
Rafael Espindola
1725702868 Mark labels declared in tls sections as STT_TLS. This matches the behavior of 
gas.

llvm-svn: 118818
 2010-11-11 19:04:55 +00:00
Wesley Peck
9ad36509f8 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
Chris Lattner
b3eff154cd add a note 
llvm-svn: 118806
 2010-11-11 18:23:57 +00:00
Rafael Espindola
8555d32c9e Initial comdat implementation. 
llvm-svn: 118805
 2010-11-11 18:13:52 +00:00
Dan Gohman
7c6a63aea3 TBAA-enable ArgumentPromotion. 
llvm-svn: 118804
 2010-11-11 18:09:32 +00:00
Dan Gohman
d88f1d63ac Add a FIXME comment. 
llvm-svn: 118803
 2010-11-11 18:08:43 +00:00
Jim Grosbach
abf0e10ea0 Encoding of destination fixup for ARM branch and conditional branch 
instructions.

llvm-svn: 118801
 2010-11-11 18:04:49 +00:00
Andrew Trick
5e77065d78 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
Dan Gohman
7c06994452 Add comments. 
llvm-svn: 118799
 2010-11-11 17:33:39 +00:00
Rafael Espindola
f7b3bb84e8 Make AliasedSymbol able to handle MCTargetExpr. They can get here if 
a weakref is used with a VariantKind.

llvm-svn: 118798
 2010-11-11 17:24:43 +00:00
Chris Lattner
3514fa6b11 add pr# 
llvm-svn: 118797
 2010-11-11 17:17:56 +00:00
Jim Grosbach
cfc32e3b5a Encoding for ARM LDRSH_POST. 
llvm-svn: 118794
 2010-11-11 16:55:29 +00:00
Rafael Espindola
f1ee36c3a3 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
Dan Gohman
503ad44b14 Add brief doxygen comments for AliasResult enum values. 
llvm-svn: 118792
 2010-11-11 16:37:38 +00:00
Dan Gohman
9f805118c3 Include ImmutablePass passes in -debug-pass=Arguments. 
llvm-svn: 118790
 2010-11-11 16:32:17 +00:00
Dan Gohman
8e986f9c2f Remove the memmove->memcpy optimization from CodeGen. MemCpyOpt does this. 
llvm-svn: 118789
 2010-11-11 16:24:49 +00:00
Dan Gohman
01ed16d764 Make Sink tbaa-aware. 
llvm-svn: 118788
 2010-11-11 16:21:47 +00:00
Dan Gohman
4a432aa7bc It's safe to sink some instructions which are not safe to speculatively 
execute. Make Sink's predicate more precise.

llvm-svn: 118787
 2010-11-11 16:20:28 +00:00
NAKAMURA Takumi
5b3bb628fb CMake: Add the new option "LLVM_LIT_ARGS". 
Defaults:
if (MSVC OR XCODE): "-sv --no-progress-bar"
else: "-sv"

llvm-svn: 118776
 2010-11-11 04:09:35 +00:00
Rafael Espindola
5766346831 Remove some explicit arguments to getELFSection. This is 
a leftover from the removal of isExplicit.

llvm-svn: 118774
 2010-11-11 03:40:25 +00:00
Jim Grosbach
8cb10f8def Encoding for ARM LDRSH and LDRSH_PRE. Cannonicalize operand names. 
llvm-svn: 118767
 2010-11-11 01:55:59 +00:00
Jim Grosbach
b86e183a33 Fix encoding of Ra register for ARM smla* instructions. 
llvm-svn: 118761
 2010-11-11 01:27:41 +00:00
Owen Anderson
f2e9cc82db Add support for specifying a PostEncoderMethod, which can perform post-processing after the automated encoding of an instruction. 
Not yet used.

llvm-svn: 118759
 2010-11-11 01:19:24 +00:00
Jim Grosbach
3b13f9013c ARM STRH encoding information. 
llvm-svn: 118757
 2010-11-11 01:09:40 +00:00
Dan Gohman
2ffc9c8de3 Add a testcase which demonstrates alias analysis pass precedence. 
llvm-svn: 118755
 2010-11-11 01:03:30 +00:00
Jakob Stoklund Olesen
e7e1f14d50 Delete SplittingSpiller. It was not being used by anyone, and it is being 
superceded by SplitKit.

llvm-svn: 118754
 2010-11-11 00:52:44 +00:00
Dan Gohman
50936c7c4b It's not necessary to clear out the Size and TBAATag at each of 
these points.

llvm-svn: 118752
 2010-11-11 00:42:22 +00:00
Dan Gohman
b476dc0f55 Set NonLocalDepInfo's Size field to UnknownSize when invalidating 
it, so that it doesn't appear to be a known size.

llvm-svn: 118748
 2010-11-11 00:20:27 +00:00
Jakob Stoklund Olesen
313b78d28e 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
Devang Patel
a4eeec4604 Document debuginfo-tests. 
llvm-svn: 118746
 2010-11-11 00:13:39 +00:00
Jakob Stoklund Olesen
3eb4a7b12d Delete unused function. 
llvm-svn: 118743
 2010-11-10 23:56:02 +00:00
Jakob Stoklund Olesen
2f72fda7ef No need to add liveness that's already there. 
llvm-svn: 118742
 2010-11-10 23:56:00 +00:00
Jakob Stoklund Olesen
6a63cbe06d Hook up AliasAnalysis in InlineSpiller. This is used for rematerializing 
constant loads.

llvm-svn: 118741
 2010-11-10 23:55:56 +00:00
Jim Grosbach
2c1d6373ab Move LDM predicate operand encoding into base clase. Add STM missing STM 
encoding bits.

llvm-svn: 118738
 2010-11-10 23:44:32 +00:00
Jim Grosbach
ad037e5ded ARM LDM encoding for the mode (ia, ib, da, db) operand. 
llvm-svn: 118736
 2010-11-10 23:38:36 +00:00