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Author SHA1 Message Date
Dan Gohman
bc5a716f10 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
Dan Gohman
2cf0e523cb Filecheckize. 
llvm-svn: 118874
 2010-11-12 02:02:39 +00:00
Dale Johannesen
659061fcd3 Remove possibly useful info from comment, per Chris. 
llvm-svn: 118865
 2010-11-12 00:43:18 +00:00
Bruno Cardoso Lopes
37f2439cbd Enable mips32 mul instruction. Patch by Akira Hatanaka <ahatanaka@mips.com> 
llvm-svn: 118864
 2010-11-12 00:38:32 +00:00
Chris Lattner
6f46d6f99f describe the preferred approach to silencing 'unused variable warnings' due to asserts. 
llvm-svn: 118863
 2010-11-12 00:19:41 +00:00
Chris Lattner
ce47bb4409 add operand iterator apis to MachineInstr, patch by ether zhhb. 
llvm-svn: 118862
 2010-11-12 00:00:21 +00:00
Jim Grosbach
f00a6faa17 Start of support for binary emit of 16-it Thumb instructions. 
llvm-svn: 118859
 2010-11-11 23:41:09 +00:00
Owen Anderson
85cf1b8ff5 Fill out support for Thumb2 encodings of NEON instructions. 
llvm-svn: 118854
 2010-11-11 23:12:55 +00:00
Wesley Peck
7974f4c201 The BRK instruction in the MicroBlaze is a branch-and-link. 
llvm-svn: 118848
 2010-11-11 22:21:08 +00:00
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