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42407 Commits

Author SHA1 Message Date
Michael J. Spencer f509c6ca27 X86: Add alloca probing to dynamic alloca on Windows. Fixes PR8424. 
llvm-svn: 116984
 2010-10-21 01:41:01 +00:00
Evan Cheng 15c2ac90ec Add missing scheduling itineraries for transfers between core registers and VFP registers. 
llvm-svn: 116983
 2010-10-21 01:12:00 +00:00
Owen Anderson 6083502848 Implement correct encodings for NEON vadd, both integer and floating point. 
llvm-svn: 116981
 2010-10-21 00:48:00 +00:00
Michael J. Spencer 83ce5f181f CodeGen-Windows: Only emit _fltused if a VarArg function is called with floating point args. 
This should be the minimum set of functions that could possibly need it.

llvm-svn: 116978
 2010-10-21 00:08:21 +00:00
Eric Christopher 4ac3ed0219 Custom lower f64 args passed in integer registers. 
llvm-svn: 116977
 2010-10-21 00:01:47 +00:00
Michael J. Spencer 9cafc872ab Fix Whitespace. 
llvm-svn: 116972
 2010-10-20 23:40:27 +00:00
Bill Wendling a65f914bb0 Add encoding for moving a value between two ARM core registers and a doublework 
extension register.

llvm-svn: 116970
 2010-10-20 23:37:40 +00:00
Jakob Stoklund Olesen a3b61d32d8 Remember to keep track of rematted values. 
llvm-svn: 116962
 2010-10-20 22:50:42 +00:00
Bill Wendling 058190507b Add encodings for movement between ARM core registers and single-precision 
registers.

llvm-svn: 116961
 2010-10-20 22:44:54 +00:00
Dan Gohman 1b85604130 Memdep says that an instruction clobbers itself 
when it means there is no specific clobber instruction.

llvm-svn: 116960
 2010-10-20 22:37:41 +00:00
Owen Anderson 80b8817c9d Attempt to fix valgrind complaining about (benign) leaks in pass registration by having PassRegistry 
delete PassInfo objects that were created using new-style initialization.

llvm-svn: 116959
 2010-10-20 22:22:30 +00:00
Dan Gohman a2ab75bc8d Factor out the main aliasing check into a separate function. 
llvm-svn: 116958
 2010-10-20 22:11:14 +00:00
Evan Cheng 87066f0677 More accurate estimate / tracking of register pressure. 
- Initial register pressure in the loop should be all the live defs into the
  loop. Not just those from loop preheader which is often empty.
- When an instruction is hoisted, update register pressure from loop preheader
  to the original BB.
- Treat only use of a virtual register as kill since the code is still SSA.

llvm-svn: 116956
 2010-10-20 22:03:58 +00:00
Dale Johannesen ff37675c72 Fix crash introduced in 116852. 8573915. 
llvm-svn: 116955
 2010-10-20 22:03:37 +00:00
Dan Gohman 2549d0cf64 Fix comments; the type graph is currently a tree, not a DAG. 
llvm-svn: 116954
 2010-10-20 22:02:58 +00:00
Jakob Stoklund Olesen 2edaa2fb24 Move some of the InlineSpiller rematerialization code into LiveRangeEdit. 
llvm-svn: 116951
 2010-10-20 22:00:51 +00:00
Dale Johannesen 320a553319 Remove Synthesizable from the Type system; as MMX vector 
types are no longer Legal on X86, we don't need it.
No functional change.  8499854.

llvm-svn: 116947
 2010-10-20 21:32:10 +00:00
Jakob Stoklund Olesen 9b131a004f When SimpleRegisterCoalescing is trimming kill flags on a physical register 
operand, also check if subregisters are killed.

Add <imp-def> operands for subregisters that remain alive after a super register
is killed.

I don't have a testcase for this that reproduces on trunk. <rdar://problem/8441758>

llvm-svn: 116940
 2010-10-20 18:45:55 +00:00
Rafael Espindola 89f6613e76 Handle _GLOBAL_OFFSET_TABLE_ correctly. 
llvm-svn: 116932
 2010-10-20 16:46:08 +00:00
Michael J. Spencer dc47d592e7 Use C++03... 
llvm-svn: 116927
 2010-10-20 16:00:45 +00:00
Michael J. Spencer 9748310eab System-Win32/Path: Fix incorrect assumption in isValid. 
A recent commit to clang exposed a bug in the Win32 Path code. This is a
minimal fix for it.

llvm-svn: 116925
 2010-10-20 15:23:58 +00:00
Chandler Carruth 1898262a33 Remove remaining uses of ATTRIBUTE_UNUSED on variables, and delete three 
#includes in the process.

llvm-svn: 116919
 2010-10-20 08:27:02 +00:00
Eric Christopher af719ef86b Fix a TODO by removing some unnecesary copies. 
llvm-svn: 116915
 2010-10-20 08:02:24 +00:00
NAKAMURA Takumi ffea0abe81 Add ATTRIBUTE_UNUSED for -Asserts. 
llvm-svn: 116909
 2010-10-20 04:05:29 +00:00
Tobias Grosser 23c8341c3d Add RegionPass support. 
A RegionPass is executed like a LoopPass but on the regions detected by the
RegionInfo pass instead of the loops detected by the LoopInfo pass.

llvm-svn: 116905
 2010-10-20 01:54:44 +00:00
Douglas Gregor 48b4568718 Fix CMake build 
llvm-svn: 116903
 2010-10-20 01:36:56 +00:00
Jim Grosbach 723159ef77 Fix backwards conditional. 
llvm-svn: 116897
 2010-10-20 01:10:01 +00:00
Dan Gohman a94cc6dfe8 Make CodeGen TBAA-aware. 
llvm-svn: 116890
 2010-10-20 00:31:05 +00:00
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