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42379 Commits

Author SHA1 Message Date
Jim Grosbach cb6fc2b2de Add dynamic realignment when rematerializing the base register. 
llvm-svn: 116886
 2010-10-20 00:02:50 +00:00
Jim Grosbach f99ee7cd91 Nuke a commented out bit that got missed a while back. 
llvm-svn: 116883
 2010-10-19 23:48:47 +00:00
Jim Grosbach bbdc5d2ef9 Add a pre-dispatch SjLj EH hook on the unwind edge for targets to do any 
setup they require. Use this for ARM/Darwin to rematerialize the base
pointer from the frame pointer when required. rdar://8564268

llvm-svn: 116879
 2010-10-19 23:27:08 +00:00
Dan Gohman da85ed8541 Move NoAA out of BasicAliasAnalysis.cpp into its own file, now that 
it doesn't have a special relationship with BasicAliasAnalysis
anymore.

llvm-svn: 116876
 2010-10-19 23:09:08 +00:00
Dan Gohman f372cf869b Reapply r116831 and r116839, converting AliasAnalysis to use 
uint64_t, plus fixes for places I missed before.

llvm-svn: 116875
 2010-10-19 22:54:46 +00:00
Douglas Gregor 21afc3b012 Extend StringRef's edit-distance algorithm to permit an upper bound on the allowed edit distance 
llvm-svn: 116867
 2010-10-19 22:13:48 +00:00
Jim Grosbach 3ed6338ff2 Update comments to remove obsolete references. 
llvm-svn: 116863
 2010-10-19 21:34:47 +00:00
Dan Gohman b4aa503501 Revert r116831 and r116839, which are breaking selfhost builds. 
llvm-svn: 116858
 2010-10-19 21:06:16 +00:00
Jakob Stoklund Olesen a4941690cc Shrink MachineOperand from 40 to 32 bytes on 64-bit hosts. 
Pull an unsigned out of the Contents union such that it has the same size as two
pointers and no padding.

Arrange members such that the Contents union and all pointers can be 8-byte
aligned without padding.

This speeds up code generation by 0.8% on a 64-bit host. 32-bit hosts should be
unaffected.

llvm-svn: 116857
 2010-10-19 20:56:32 +00:00
Owen Anderson a4fefc1949 Passes do not need to recursively initialize passes that they preserve, if 
they do not also require them.  This allows us to reduce inter-pass linkage
dependencies.

llvm-svn: 116854
 2010-10-19 20:08:44 +00:00
Dale Johannesen 710a2d9d46 Enable using vdup for vector constants which are splat of 
integers by default, and remove the controlling flag, now
that LICM will hoist such vdup's.  8003375.

llvm-svn: 116852
 2010-10-19 20:00:17 +00:00
Rafael Espindola ee8d15157a Small cleanups and fixes in preparation for fixing _GLOBAL_OFFSET_TABLE_. 
llvm-svn: 116848
 2010-10-19 19:31:37 +00:00
Evan Cheng 63c7608c34 Re-enable register pressure aware machine licm with fixes. Hoist() may have 
erased the instruction during LICM so UpdateRegPressureAfter() should not
reference it afterwards.

llvm-svn: 116845
 2010-10-19 18:58:51 +00:00
Dan Gohman 896ac62346 Oops, check in all the files for converting AliasAnalysis to 
use uint64_t.

llvm-svn: 116839
 2010-10-19 18:08:27 +00:00
Dan Gohman f4c5fe73be Change AliasAnalysis and its clients to use uint64_t instead of unsigned 
for representing object sizes, for consistency with other parts of LLVM.

llvm-svn: 116831
 2010-10-19 18:00:02 +00:00
Owen Anderson 6c18d1aac0 Get rid of static constructors for pass registration. Instead, every pass exposes an initializeMyPassFunction(), which 
must be called in the pass's constructor.  This function uses static dependency declarations to recursively initialize
the pass's dependencies.

Clients that only create passes through the createFooPass() APIs will require no changes.  Clients that want to use the
CommandLine options for passes will need to manually call the appropriate initialization functions in PassInitialization.h
before parsing commandline arguments.

I have tested this with all standard configurations of clang and llvm-gcc on Darwin.  It is possible that there are problems
with the static dependencies that will only be visible with non-standard options.  If you encounter any crash in pass
registration/creation, please send the testcase to me directly.

llvm-svn: 116820
 2010-10-19 17:21:58 +00:00
Daniel Dunbar 418204e523 Revert r116781 "- Add a hook for target to determine whether an instruction def 
is", which breaks some nightly tests.

llvm-svn: 116816
 2010-10-19 17:14:24 +00:00
Dan Gohman 14fe8cf238 Consistently use AliasAnalysis::UnknownSize instead of hardcoding ~0u. 
llvm-svn: 116815
 2010-10-19 17:06:23 +00:00
Mikhail Glushenkov 2072db24ed GlobalOpt: EvaluateFunction() must not evaluate stores to weak_odr globals. 
Fixes PR8389.

llvm-svn: 116812
 2010-10-19 16:47:23 +00:00
Che-Liang Chiou 05046a177d Add lower argument and return of device function 
llvm-svn: 116805
 2010-10-19 13:14:40 +00:00
Bill Wendling 5391eb61fb Fix spelling. 
llvm-svn: 116804
 2010-10-19 10:18:23 +00:00
Michael J. Spencer 3e64de9504 X86: Add MS-CRT libcalls. 
llvm-svn: 116801
 2010-10-19 07:32:52 +00:00
Michael J. Spencer 8b382e7e10 Fix Whitespace. 
llvm-svn: 116800
 2010-10-19 07:32:42 +00:00
NAKAMURA Takumi 392f084f46 lib/CodeGen/TargetLoweringObjectFileImpl.cpp: Tweak to emit ".{section}${name}" instead of ".{section}$linkonce_{name}" for linkonce sections. 
It seems GNU ld/PECOFF relies on section names, linking with g++'s libstdc++.a would fail.

llvm-svn: 116791
 2010-10-19 03:24:42 +00:00
Andrew Trick 2006bbef7d Fix for machine licm assert: RCCost <= RegPressure[RCId] 
in MultiSource/Benchmarks/VersaBench/beamformer/beamformer.
SmallSet.insert returns true if the element is inserted.

llvm-svn: 116790
 2010-10-19 02:50:50 +00:00
Rafael Espindola e73bc89093 Fix PR8300 by remembering to keep the bitcast in all cases. 
llvm-svn: 116788
 2010-10-19 02:02:57 +00:00
NAKAMURA Takumi 898fbd82a5 lib/System/Win32/ThreadLocal.inc: Suppress "unused" warning on -Asserts. 
llvm-svn: 116785
 2010-10-19 01:22:01 +00:00
NAKAMURA Takumi fe84f39adb lib/Support/raw_ostream.cpp: Fix Cygwin's build. 
setmode is provided by io.h on Cygwin.

llvm-svn: 116784
 2010-10-19 01:21:55 +00:00
Evan Cheng 8249dfe6ce - Add a hook for target to determine whether an instruction def is 
"long latency" enough to hoist even if it may increase spilling. Reloading
  a value from spill slot is often cheaper than performing an expensive
  computation in the loop. For X86, that means machine LICM will hoist
  SQRT, DIV, etc. ARM will be somewhat aggressive with VFP and NEON
  instructions.
- Enable register pressure aware machine LICM by default.

llvm-svn: 116781
 2010-10-19 00:55:07 +00:00
Chandler Carruth a960cb7181 Move the definition of this to the source file to anchor the vtable. 
llvm-svn: 116779
 2010-10-19 00:37:30 +00:00
Bob Wilson b6d61dc291 Support alignment for NEON vld-lane and vst-lane instructions. 
llvm-svn: 116776
 2010-10-19 00:16:32 +00:00
Kevin Enderby 49843c0162 Added a few tweaks to the Intel Descriptor-table support instructions to allow 
word forms and suffixed versions to match the darwin assembler in 32-bit and
64-bit modes.  This is again for use just with assembly source for llvm-mc .

llvm-svn: 116773
 2010-10-19 00:01:44 +00:00
Jim Grosbach 1c6fd774f7 ARM encoding information for [SU]SAT* instructions. 
llvm-svn: 116768
 2010-10-18 23:35:38 +00:00
Dan Gohman e4a82e2f21 Make the representation of AliasSets explicitly differentiate 
between "not known yet" and "known no tbaa info" so that it
can merge them properly.

llvm-svn: 116767
 2010-10-18 23:31:47 +00:00
Eric Christopher 7b92c2a9a0 Revert r116220 - thus turning arm fast isel back on by default. 
llvm-svn: 116762
 2010-10-18 22:53:53 +00:00
Daniel Dunbar 418e7046f7 CrashRecoveryContext: Add missing return, so that the signal fires after we our 
routine is off the stack. Otherwise we show up rather confusingly in the stack
trace.

llvm-svn: 116755
 2010-10-18 21:55:18 +00:00
Dan Gohman 408beac597 Don't pass the raw invalid pointer used to represent conflicting 
TBAA information to AliasAnalysis.

llvm-svn: 116751
 2010-10-18 21:28:00 +00:00
Bill Wendling 337a31133b Don't recompute MachineRegisterInfo in the Optimize* method. 
llvm-svn: 116750
 2010-10-18 21:22:31 +00:00
Mikhail Glushenkov cf2afe008d Trailing whitespace. 
llvm-svn: 116749
 2010-10-18 21:16:00 +00:00
Rafael Espindola fba9f74932 Implement R_386_GOT32. 
llvm-svn: 116744
 2010-10-18 20:47:21 +00:00
Dan Gohman 71af9db0e8 Make AliasSetTracker TBAA-aware, enabling TBAA-enabled LICM. 
llvm-svn: 116743
 2010-10-18 20:44:50 +00:00
Rafael Espindola 0a5314fdb3 Relocate with .bss instead of using the symbol. Matches gas behavior. 
llvm-svn: 116741
 2010-10-18 20:25:33 +00:00
Rafael Espindola 3604d4441a Reenable assert. 
llvm-svn: 116738
 2010-10-18 19:33:01 +00:00
Devang Patel 218f3206fa Transfer debug loc to lowered call. 
Patch by Alexander Herz!

llvm-svn: 116733
 2010-10-18 18:53:44 +00:00
Dan Gohman 52dacc0d7f Add TypeBasedAliasAnalysis to the standard pass lists. Note that it 
is currently inert by default.

llvm-svn: 116732
 2010-10-18 18:50:27 +00:00
Dan Gohman f3702452c8 Fix BasicAA to pass TBAAInfo through to the chained analysis. 
llvm-svn: 116730
 2010-10-18 18:45:11 +00:00
Jim Grosbach 6706f3c4b4 For Thumb2, try to use frame pointer references for stack slots even when a 
base register is available. rdar://8525298

llvm-svn: 116729
 2010-10-18 18:39:46 +00:00
Rafael Espindola e3dc9e2ea1 Produce ELF::R_386_GOTPC relocations. 
llvm-svn: 116728
 2010-10-18 18:36:12 +00:00
Dan Gohman 33fcde9b9c Make TypeBasedAliasAnalysis default to doing nothing, with a command-line 
option to enable it.

llvm-svn: 116722
 2010-10-18 18:17:47 +00:00
Dan Gohman f0a3bed6d6 Use chaining in TypeBasedAliasAnalysis::pointsToConstantMemory. 
llvm-svn: 116721
 2010-10-18 18:10:31 +00:00