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Author SHA1 Message Date
Bruno Cardoso Lopes
6e4c5af01e Fix the encoding of t2ISB by using the right class and also parse it correctly 
llvm-svn: 123776
 2011-01-18 21:17:09 +00:00
Dan Gohman
df668227fb Teach BasicAA to return PartialAlias in cases where both pointers 
are pointing to the same object, one pointer is accessing the entire
object, and the other is access has a non-zero size. This prevents
TBAA from kicking in and saying NoAlias in such cases.

llvm-svn: 123775
 2011-01-18 21:16:06 +00:00
Jakob Stoklund Olesen
c0ff5356d4 Add RAGreedy methods for splitting live ranges around regions. 
Analyze the live range's behavior entering and leaving basic blocks. Compute an
interference pattern for each allocation candidate, and use SpillPlacement to
find an optimal region where that register can be live.

This code is still not enabled.

llvm-svn: 123774
 2011-01-18 21:13:27 +00:00
Bruno Cardoso Lopes
c1e21b06b9 Follow the current hack set and enable the correct parsing of bkpt while in thumb mode. 
llvm-svn: 123772
 2011-01-18 20:55:11 +00:00
Chris Lattner
4832a9d32c fix rdar://8878965, a regression I introduced with the recent 
llvm.objectsize changes.

llvm-svn: 123771
 2011-01-18 20:53:04 +00:00
Bruno Cardoso Lopes
94247155c4 Add support for parsing and encoding ARM's official syntax for the BFI instruction 
llvm-svn: 123770
 2011-01-18 20:45:56 +00:00
Jim Grosbach
6de3a4f76f Add a FIXME. 
llvm-svn: 123769
 2011-01-18 19:59:19 +00:00
Bruno Cardoso Lopes
13cefe452d Ensure Mips::GP is properly reloaded after a function call. Patch by Sasa Stankovic 
llvm-svn: 123768
 2011-01-18 19:50:18 +00:00
Bruno Cardoso Lopes
2d509b8b40 Negative zero is not legal on mips. Patch by Sasa Stankovic 
llvm-svn: 123766
 2011-01-18 19:41:41 +00:00
Bruno Cardoso Lopes
542853bcd7 Handle (i32,i32) => f64 in a cleaner way. Patch by Sasa Stankovic 
llvm-svn: 123763
 2011-01-18 19:38:25 +00:00
Bruno Cardoso Lopes
6c5db0236a Add support for mips32 madd and msub instructions. Patch by Akira Hatanaka 
llvm-svn: 123760
 2011-01-18 19:29:17 +00:00
Duncan Sands
732cb58b61 For completeness, generalize the (X + Y) - Y -> X transform and add X - (X + 1) -> -1. 
These were not recommended by my auto-simplifier since they don't fire often enough.
However they do fire from time to time, for example they remove one subtraction from
the final bitcode for 483.xalancbmk.

llvm-svn: 123755
 2011-01-18 11:50:19 +00:00
Duncan Sands
2abe6f500f Simplify (X<<1)-X into X. According to my auto-simplier this is the most common missed 
simplification in fully optimized code.  It occurs sporadically in the testsuite, and
many times in 403.gcc: the final bitcode has 131 fewer subtractions after this change.
The reason that the multiplies are not eliminated is the same reason that instcombine
did not catch this: they are used by other instructions (instcombine catches this with
a more general transform which in general is only profitable if the operands have only
one use).

llvm-svn: 123754
 2011-01-18 09:24:58 +00:00
Chris Lattner
08e1bf567f add a note 
llvm-svn: 123752
 2011-01-18 07:47:48 +00:00
Chris Lattner
fa467f3d1b finish a sentence. 
llvm-svn: 123750
 2011-01-18 06:12:10 +00:00
Venkatraman Govindaraju
ecf49c6279 SPARC backend: Modified LowerCall and LowerFormalArguments so that they use CallingConv assignments. 
llvm-svn: 123749
 2011-01-18 06:09:55 +00:00
Cameron Zwarich
ea98dd25a5 Remove an unnecessary #include. 
llvm-svn: 123748
 2011-01-18 06:07:18 +00:00
Cameron Zwarich
c8083524f8 Move DominanceFrontier from VMCore to Analysis. 
llvm-svn: 123747
 2011-01-18 06:06:27 +00:00
Daniel Dunbar
12dd48769d McARM: Use accessors where appropriate. 
llvm-svn: 123746
 2011-01-18 05:55:27 +00:00
Daniel Dunbar
51fef8d445 McARM: Fill in ASMOperand::dump() for memory operands. 
llvm-svn: 123745
 2011-01-18 05:55:21 +00:00
Daniel Dunbar
f966e16cb0 McARM: Make ARMOperand use a union where appropriate. 
llvm-svn: 123744
 2011-01-18 05:55:15 +00:00
Cameron Zwarich
caca9a63e6 There is no point in verifying an analysis that is never updated. 
llvm-svn: 123743
 2011-01-18 05:44:04 +00:00
Daniel Dunbar
0cff3f953b McARM: Unify ParseMemory() successfull return. 
llvm-svn: 123740
 2011-01-18 05:34:24 +00:00
Daniel Dunbar
3cb5e8b0cb McARM: Early exit on failure (NEFC). 
llvm-svn: 123739
 2011-01-18 05:34:17 +00:00
Daniel Dunbar
9ea6873c89 McARM: Always keep an offset expression, if used (instead of assuming == 0 if used but not present), and simplify logic. 
Also, clean up various non-sensicalisms in isMemModeRegThumb() and isMemModeImmThumb().

llvm-svn: 123738
 2011-01-18 05:34:11 +00:00
Daniel Dunbar
8d7ed1f6a8 McARM: Add a variety of asserts on the sanity of memory operands. 
llvm-svn: 123737
 2011-01-18 05:34:05 +00:00
Daniel Dunbar
aa5e17f3a7 McARM: Use a consistent marker for not-set OffsetRegNum. 
llvm-svn: 123736
 2011-01-18 05:33:57 +00:00
Cameron Zwarich
4ccaa5dccc Convert a std::map to a DenseMap for another 1.7% speedup on -scalarrepl. 
llvm-svn: 123732
 2011-01-18 04:50:38 +00:00
Cameron Zwarich
c35c06d0d4 Make a std::vector a SmallVector<*, 32> like the other vectors in the same 
function. This seems to be about a 1.5% speedup of -scalarrepl on test-suite
with SPEC2000 and SPEC2006.

llvm-svn: 123731
 2011-01-18 04:41:32 +00:00
Rafael Espindola
1cab858a5c Reduce indentation and remove commented out code. 
llvm-svn: 123729
 2011-01-18 04:36:06 +00:00
Cameron Zwarich
62a9d4d454 Remove some now-unused DominanceFrontier methods. 
llvm-svn: 123726
 2011-01-18 04:21:57 +00:00
Cameron Zwarich
c93f994801 Remove code for updating dominance frontiers and some outdated references to 
dominance and post-dominance frontiers.

llvm-svn: 123725
 2011-01-18 04:11:31 +00:00
Cameron Zwarich
e39e476305 Remove outdated references to dominance frontiers. 
llvm-svn: 123724
 2011-01-18 03:53:26 +00:00
Daniel Dunbar
ba39b2fdc1 McARM: Start marking T2 address operands as such, for the benefit of the parser. 
llvm-svn: 123722
 2011-01-18 03:06:03 +00:00
Daniel Dunbar
b8debfe450 Formatting tweak. 
llvm-svn: 123718
 2011-01-18 01:59:30 +00:00
Daniel Dunbar
d4e20df45a Support/CommandLine: Add "Did you mean" print for mismatched operands. 
llvm-svn: 123717
 2011-01-18 01:59:24 +00:00
Eric Christopher
e8aa8b114f The stub routine that we're calling uses test and so clobbers 
the flags.

llvm-svn: 123712
 2011-01-18 01:37:20 +00:00
Chris Lattner
047388c197 minor change to rafael's recent patches: if something is 
constant but requires a unique address, we can still put it in a
readonly section, just not a mergable one.

llvm-svn: 123711
 2011-01-18 01:23:44 +00:00
Jeffrey Yasskin
5f5e1f5ef1 Remove unused variables found by gcc-4.6's -Wunused-but-set-variable. 
llvm-svn: 123707
 2011-01-18 00:51:23 +00:00
Stuart Hastings
f5f8318eb6 Remove checking that prevented overlapping CALLSEQ_START/CALLSEQ_END 
ranges, add legalizer support for nested calls.  Necessary for ARM
byval support.  Radar 7662569.

llvm-svn: 123704
 2011-01-18 00:09:27 +00:00
NAKAMURA Takumi
04e2fe7fd0 Windows/PathV2.inc: For CryptAcquireContext(), CRYPT_VERIFYCONTEXT may be specified for easy use. 
llvm-svn: 123687
 2011-01-17 22:41:34 +00:00
NAKAMURA Takumi
bfd623d7e5 Windows/PathV2.inc: MoveFileEx() can behave like Posix's mv(1) to specify MOVEFILE_COPY_ALLOWED | MOVEFILE_REPLACE_EXISTING. 
llvm-svn: 123686
 2011-01-17 22:41:25 +00:00
NAKAMURA Takumi
6a74aa16c3 lib/Support/Windows/Signals.inc: "Showstopper" dialogs may be suppressed with SetErrorMode() on Windows 7. 
llvm-svn: 123685
 2011-01-17 22:41:15 +00:00
Owen Anderson
b315a60d0f Remove dead code, that I apparently wrote a while back. We seem to be doing well enough 
without whatever this was trying to do.  When/if someone has the time to do some empirical
evaluations, it might be worth it to figure out what this code was trying to do and see if
it's worth resurrecting/fixing.

llvm-svn: 123684
 2011-01-17 22:39:54 +00:00
Douglas Gregor
49f7d8c38c Add a missing <cctype> include, from Joerg Sonnenberger! 
llvm-svn: 123670
 2011-01-17 19:17:01 +00:00
Jim Grosbach
a55f759249 Trailing whitespace. 
llvm-svn: 123665
 2011-01-17 18:34:03 +00:00
Benjamin Kramer
869dc645f1 Fix an off-by-one error in ctpop combining. 
llvm-svn: 123664
 2011-01-17 18:00:28 +00:00
Devang Patel
ec7c842bfa Update tests to accomodate unnamed_addr introduction. 
llvm-svn: 123663
 2011-01-17 17:54:17 +00:00
Cameron Zwarich
0a1975802e Roll r123609 back in with two changes that fix test failures with expensive 
checks enabled:

1) Use '<' to compare integers in a comparison function rather than '<='.

2) Use the uniqued set DefBlocks rather than Info.DefiningBlocks to initialize
the priority queue.

The speedup of scalarrepl on test-suite + SPEC2000 + SPEC2006 is a bit less, at
just under 16% rather than 17%.

llvm-svn: 123662
 2011-01-17 17:38:41 +00:00
Devang Patel
0e3796a7a0 Revert rr123550. It causes clang build failure on darwin9. 
llvm-svn: 123661
 2011-01-17 17:34:43 +00:00