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Author SHA1 Message Date
Bob Wilson
9e68616e49 Fix a comment. 
llvm-svn: 90975
 2009-12-09 18:05:27 +00:00
Chris Lattner
2f9b661ab8 Add a minor optimization: if we haven't changed the operands of an 
add, there is no need to scan the world to find the same add again.
This invalidates the previous testcase, which wasn't wonderful anyway,
because it needed a run of instcombine to permute the use-lists in 
just the right way to before GVN was run (so it was really fragile).
Not a big loss.

llvm-svn: 90973
 2009-12-09 17:27:45 +00:00
Anton Korobeynikov
4e845b12dd Add note about loadable modules on windows. 
Patch by Gregory Petrosyan!

llvm-svn: 90972
 2009-12-09 17:26:02 +00:00
Chris Lattner
e05f9a128c fix PR5733, a case where we'd replace an add with a lexically identical 
binary operator that wasn't an add.  In this case, a xor.  Whoops.

llvm-svn: 90971
 2009-12-09 17:18:49 +00:00
David Goodwin
2bc2d833ab <rdar://problem/7453528>. Track only physical registers that are valid for the target. 
llvm-svn: 90970
 2009-12-09 17:18:22 +00:00
Chris Lattner
8361f3cfc9 merge crash-2.ll into crash.ll 
llvm-svn: 90969
 2009-12-09 17:17:26 +00:00
Eric Christopher
ff291e48aa Silence conversion warning from 64 to 32-bit. 
llvm-svn: 90962
 2009-12-09 08:29:32 +00:00
Chris Lattner
db0baa713d change AnalyzeLoadFromClobberingMemInst/AnalyzeLoadFromClobberingStore 
to require the load ty/ptr to be passed in, no functionality change.

llvm-svn: 90960
 2009-12-09 07:37:07 +00:00
Chris Lattner
b3587059c8 change AnalyzeLoadFromClobberingWrite and clients to pass in type 
and pointer instead of the load.  No functionality change.

llvm-svn: 90959
 2009-12-09 07:34:10 +00:00
Chris Lattner
366b8ac755 enhance NonLocalDepEntry to keep the per-block phi translated address 
of the query.

llvm-svn: 90958
 2009-12-09 07:31:04 +00:00
Daniel Dunbar
a8dc0ca084 DeltaAlgorithm: Add a virtual destructor and home. 
llvm-svn: 90957
 2009-12-09 07:19:48 +00:00
Chris Lattner
e0207b46d2 change NonLocalDepEntry from being a typedef for an std::pair to be its 
own small class.  No functionality change.

llvm-svn: 90956
 2009-12-09 07:08:01 +00:00
Lang Hames
a5a7da896e Added a new "splitting" spiller. 
When a call is placed to spill an interval this spiller will first try to
break the interval up into its component values. Single value intervals and
intervals which have already been split (or are the result of previous splits)
are spilled by the default spiller.

Splitting intervals as described above may improve the performance of generated
code in some circumstances. This work is experimental however, and it still
miscompiles many benchmarks. It's not recommended for general use yet.

llvm-svn: 90951
 2009-12-09 05:39:12 +00:00
Daniel Dunbar
3d073e0978 Remove spurious extern. 
llvm-svn: 90937
 2009-12-09 03:26:33 +00:00
Daniel Dunbar
b7c5aa749a Remove unneeded ';' and a class/struct mismatch (noticed by clang). 
llvm-svn: 90934
 2009-12-09 02:58:09 +00:00
Chris Lattner
1f1da3a5a6 the code in GVN that tries to forward large loads to small 
stores is not phi translating, thus it miscompiles really
crazy testcases.  This is from inspection, I haven't seen
this in the wild.

llvm-svn: 90930
 2009-12-09 02:43:05 +00:00
Chris Lattner
4645bb977a add some aborts to #if 0's. 
llvm-svn: 90929
 2009-12-09 02:41:54 +00:00
Chris Lattner
dda5ca59e2 Switch GVN and memdep to use PHITransAddr, which correctly handles 
phi translation of complex expressions like &A[i+1].  This has the
following benefits:

1. The phi translation logic is all contained in its own class with
   a strong interface and verification that it is self consistent.

2. The logic is more correct than before.  Previously, if intermediate
   expressions got PHI translated, we'd miss the update and scan for
   the wrong pointers in predecessor blocks.  @phi_trans2 is a testcase
   for this.

3. We have a lot less code in memdep.

We can handle phi translation across blocks of things like @phi_trans3,
which is pretty insane :).

This patch should fix the miscompiles of 255.vortex, and I tested it 
with a bootstrap of llvm-gcc, llvm-test and dejagnu of course.

llvm-svn: 90926
 2009-12-09 01:59:31 +00:00
Evan Cheng
41c13e41fe Teach InferPtrAlignment to infer GV+cst alignment and use it to simplify x86 isl lowering code. 
llvm-svn: 90925
 2009-12-09 01:53:58 +00:00
Devang Patel
d5a8051dea Remove tests that are not suitable anymore. Plus they are not testing the original bugfixes anymore. These tests were inserted to check bug fixes in code that handled debug info intrinsics. These intrinsics are no longer used and now llvm parser simply ignores old .dbg intrinsics from these dead tests. 
llvm-svn: 90923
 2009-12-09 01:46:00 +00:00
Evan Cheng
7941695285 Move isConsecutiveLoad to SelectionDAG. It's not target dependent and it's primary used by selectdag passes. 
llvm-svn: 90922
 2009-12-09 01:36:00 +00:00
Chris Lattner
9c2474e272 fix a nasty variable that was shadowing the real CurBB but with the wrong value. 
llvm-svn: 90920
 2009-12-09 01:19:16 +00:00
Evan Cheng
ad75af2aa2 Infer alignment for non-fixed stack object. 
llvm-svn: 90919
 2009-12-09 01:17:24 +00:00
Evan Cheng
293ec7b394 Add const qualifier. 
llvm-svn: 90918
 2009-12-09 01:10:37 +00:00
Evan Cheng
b925774a74 Refactor InferAlignment out of DAGCombine. 
llvm-svn: 90917
 2009-12-09 01:04:59 +00:00
Chris Lattner
3211af28ba fix many input tracking bugs. 
llvm-svn: 90915
 2009-12-09 00:56:14 +00:00
Chris Lattner
26c6e3ba7d when opt crashes, print its command line arguments as a pretty stack trace. 
Somehow opt was missed when this was added.

llvm-svn: 90912
 2009-12-09 00:41:28 +00:00
Dan Gohman
ed3d370a10 Fix a typo in a comment, and adjust SmallSet and SmallVector sizes, 
that Chris noticed.

llvm-svn: 90910
 2009-12-09 00:28:42 +00:00
Chris Lattner
c457aaea0d fix PHI translation to take the PHI out of the instinputs set and add 
the translated value back to it if an instruction.

llvm-svn: 90909
 2009-12-09 00:18:13 +00:00
Chris Lattner
b0d20540ad instructions defined in CurBB may be intermediate nodes of the computation. 
llvm-svn: 90908
 2009-12-09 00:10:55 +00:00
Chris Lattner
83cb0b1450 add dumping and sanity checking support. 
llvm-svn: 90906
 2009-12-09 00:01:00 +00:00
Dan Gohman
2d7d4fb9a6 Put a threshold on the number of users PointerMayBeCaptured 
examines; fall back to a conservative answer if there are
more. This works around some several compile time problems
resulting from BasicAliasAnalysis calling PointerMayBeCaptured.

The value has been chosen arbitrarily.

This fixes rdar://7438917 and may partially address PR5708.

llvm-svn: 90905
 2009-12-08 23:59:12 +00:00
Chris Lattner
604cebbfc1 make sure that PHITransAddr keeps its 'InstInputs' list up to 
date when instsimplify kicks in.

llvm-svn: 90901
 2009-12-08 23:42:51 +00:00
Devang Patel
11874672da Revert 90858 90875 and 90805 for now. 
llvm-svn: 90898
 2009-12-08 23:21:45 +00:00
Evan Cheng
edcc21919f - Support inline asm 'w' constraint for 128-bit vector types. 
- Also support the 'q' NEON registers asm code.

llvm-svn: 90894
 2009-12-08 23:06:22 +00:00
Daniel Dunbar
ea0c099b04 lit: Prevent crash-on-invalid (when run on directory which has no test suite). 
llvm-svn: 90871
 2009-12-08 19:49:30 +00:00
Daniel Dunbar
1b05b09ba4 CMake/lit: Add llvm_{unit_,}site_config parameters, and always pass them when running tests from the project files. 
llvm-svn: 90869
 2009-12-08 19:47:36 +00:00
Evan Cheng
522b98d737 Revert 90789 for now. It caused massive compile time regression. Post-ra scheduler slowed down dramatically with this. 
llvm-svn: 90868
 2009-12-08 19:34:53 +00:00
Bob Wilson
04cc375a1a Some superficial cleanups. 
llvm-svn: 90866
 2009-12-08 18:27:03 +00:00
Bob Wilson
d673b32280 Clean up dead operands left around after SROA replaces a mem intrinsic. 
I'm not aware that this does anything significant on its own, but it's
needed for another patch that I'm working on.

llvm-svn: 90864
 2009-12-08 18:22:03 +00:00
Devang Patel
5905a705fe Cleanup. 
There is no need to supply ModuleCU to addType() as a parameter.

llvm-svn: 90858
 2009-12-08 15:31:31 +00:00
Devang Patel
cb39ef375f Do not try to push dead variable's debug info into namespace info. 
llvm-svn: 90857
 2009-12-08 15:01:35 +00:00
Benjamin Kramer
2d6d1651cf Remove useless calls to c_str(). 
llvm-svn: 90855
 2009-12-08 13:07:38 +00:00
Duncan Sands
897f9579d6 Teach GlobalOpt to delete aliases with internal linkage (after 
forwarding any uses).  GlobalDCE can also do this, but is only
run at -O3.

llvm-svn: 90850
 2009-12-08 10:10:20 +00:00
Chris Lattner
8cc673c6a0 fix a typo (and -> add) and fix GetAvailablePHITranslatedSubExpr to not 
side-effect the current object.

llvm-svn: 90837
 2009-12-08 06:06:26 +00:00
Nick Lewycky
5a00cea348 Remove unnecessary #include "llvm/LLVMContext.h". 
llvm-svn: 90836
 2009-12-08 05:45:41 +00:00
Chris Lattner
acc9c4f542 whitespace cleanup 
llvm-svn: 90834
 2009-12-08 05:31:46 +00:00
Oscar Fuentes
bb3243a706 Removed VC++ compatibility code from DataTypes.h.in. 
This header file is not used on VC++ builds.

llvm-svn: 90829
 2009-12-08 02:49:54 +00:00
Oscar Fuentes
7c94e1aa2a For VC++, define the ?INT*_C macros only it they are not yet defined. 
Some compatibility updates like the Boost TR1 compatibility headers
define them.

Patch contributed by OvermindDL1!

llvm-svn: 90828
 2009-12-08 02:40:09 +00:00
Anton Korobeynikov
0ace515a4c Reduce (cmp 0, and_su (foo, bar)) into (bit foo, bar). This saves extra instruction. Patch inspired by Brian Lucas! 
llvm-svn: 90819
 2009-12-08 01:03:04 +00:00