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dda5ca59e2
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10617 Commits

Author SHA1 Message Date
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
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
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
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
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
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
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
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
Victor Hernandez
f5143485fa Rename DIFactory::InsertValue() as DIFactory::InsertDbgValueIntrinsic() 
llvm-svn: 90807
 2009-12-07 21:54:43 +00:00
Devang Patel
e59f4f7204 Add support to emit debug info for c++ style namespaces. 
llvm-svn: 90805
 2009-12-07 21:41:32 +00:00
Chris Lattner
9ed7e3ffb9 add accessor, improve comment. 
llvm-svn: 90792
 2009-12-07 19:45:30 +00:00
Dan Gohman
b52be9ecc4 Apply Pekka Jääskeläinen's patch to raise the first virtual register 
number in order to accomodate targets with more than 1024 registers.

llvm-svn: 90789
 2009-12-07 19:38:26 +00:00
Victor Hernandez
2a16652946 Introduce the "@llvm.dbg.value" debug intrinsic. 
The semantics of llvm.dbg.value are that starting from where it is executed, an offset into the specified user source variable is specified to get a new value.

An example:
  call void @llvm.dbg.value(metadata !{ i32 7 }, i64 0, metadata !2)
Here the user source variable associated with metadata #2 gets the value "i32 7" at offset 0.
 

llvm-svn: 90788
 2009-12-07 19:36:34 +00:00
Chris Lattner
0a810a827f checkpoint of the new PHITransAddr code, still not done and not used by 
anything.

llvm-svn: 90779
 2009-12-07 18:36:53 +00:00
Mikhail Glushenkov
c05e105f51 Deprecate 'unpack_values'. 
Use 'forward_values' + 'comma_separated' instead.

llvm-svn: 90774
 2009-12-07 18:25:54 +00:00
Mikhail Glushenkov
9f567e2e67 Implement 'forward_value' and 'forward_transformed_value'. 
llvm-svn: 90770
 2009-12-07 17:03:05 +00:00
Evan Cheng
79d3b53208 Pre-regalloc tale duplication. Work in progress. 
llvm-svn: 90759
 2009-12-07 10:15:19 +00:00
John Mosby
a8f0994ba7 fixed some typos in method comments, reworded some comments for clarity 
llvm-svn: 90754
 2009-12-07 09:06:37 +00:00
Oscar Fuentes
d4427a6b63 Fixes the Atomic implementation if compiled by MSVC compiler. 
sys::cas_flag should be long on this platform, InterlockedAdd() is
defined only for the Itanium architecture (according to MSDN).

Patch by Michael Beck!

llvm-svn: 90748
 2009-12-07 05:29:59 +00:00
Anton Korobeynikov
fadc276b81 Add MSP430 interrupt calling conv. No functionality change yet. 
llvm-svn: 90738
 2009-12-07 02:27:35 +00:00
Chris Lattner
c9a91632e1 remove extraneous comma clang warns about 
llvm-svn: 90707
 2009-12-06 16:58:41 +00:00
Chris Lattner
aee232cb03 Add helper methods for forming shift operations with a constant 
shift amount.

llvm-svn: 90694
 2009-12-06 01:56:22 +00:00
Dan Gohman
e6ce676cb2 Remove old DBG_LABEL code. 
llvm-svn: 90669
 2009-12-05 17:56:26 +00:00
Dan Gohman
d2797bf9ae Remove the unused DisableLegalizeTypes option and related code. 
llvm-svn: 90668
 2009-12-05 17:51:33 +00:00
Bill Wendling
887646a585 Temporarily revert r90502. It was causing the llvm-gcc bootstrap on PPC to fail. 
llvm-svn: 90653
 2009-12-05 07:30:23 +00:00
Nick Lewycky
6f5e732b75 Document that memory use intrinsics may also return Def results. 
llvm-svn: 90651
 2009-12-05 06:37:52 +00:00
Dan Gohman
c9454cd34f Make TargetSelectInstruction protected and called from FastISel.cpp 
instead of SelectionDAGISel.cpp.

llvm-svn: 90636
 2009-12-05 01:27:58 +00:00
Dan Gohman
f9654e9258 Remove the target hook TargetInstrInfo::BlockHasNoFallThrough in favor of 
MachineBasicBlock::canFallThrough(), which is target-independent and more
thorough.

llvm-svn: 90634
 2009-12-05 00:44:40 +00:00
David Greene
4ab7e5fa6a Remove an unneeded include. 
llvm-svn: 90627
 2009-12-05 00:03:24 +00:00
David Greene
7ff6aa2e62 Fix a bad merge. 
llvm-svn: 90616
 2009-12-04 23:08:02 +00:00
David Greene
4c625161b2 Update the TargetInstrInfo interfaces so hasLoad/StoreFrom/ToStackSlot 
can return a MachineMemOperand.

llvm-svn: 90615
 2009-12-04 23:00:50 +00:00
Bob Wilson
b8002101b4 Fix indentation. 
llvm-svn: 90613
 2009-12-04 22:46:47 +00:00
Evan Cheng
0b005cade5 Add a pre-regalloc tail duplication pass. 
llvm-svn: 90567
 2009-12-04 09:42:45 +00:00
Chris Lattner
167f1dc040 add the start of a class used to handle phi translation in memdep and 
gvn (this is just a skeleton so far).  This will ultimately be used
to fix a nasty miscompilation with GVN.

llvm-svn: 90518
 2009-12-04 02:10:16 +00:00
Mike Stump
cbbfda910a Create yet another helper for Invoke. 
llvm-svn: 90514
 2009-12-04 01:53:15 +00:00
Mike Stump
9bc36df3e7 Add some helpers for Invoke to mirror CreateCall helpers. 
llvm-svn: 90508
 2009-12-04 01:26:26 +00:00
Jakob Stoklund Olesen
7c5af26d12 Also attempt trivial coalescing for live intervals that end in a copy. 
The coalescer is supposed to clean these up, but when setting up parameters
for a function call, there may be copies to physregs. If the defining
instruction has been LICM'ed far away, the coalescer won't touch it.

The register allocation hint does not always work - when the register
allocator is backtracking, it clears the hints.

This patch takes care of a few more cases that r90163 missed.

llvm-svn: 90502
 2009-12-04 00:16:04 +00:00
Devang Patel
fe7cf074f0 Add support to emit debug info for virtual functions and virtual base classes. 
llvm-svn: 90474
 2009-12-03 19:11:07 +00:00
Daniel Dunbar
63e2201f3e Add an implementation of the delta debugging algorithm. 
- This is a pretty slow / memory intensive implementation, and I will likely
   change it to an iterative model, but it works.

llvm-svn: 90447
 2009-12-03 11:12:42 +00:00
Andreas Neustifter
39cc7661ad Use ProfileInfo-API in ProfileInfo Loader and do more assertions. 
llvm-svn: 90446
 2009-12-03 11:00:37 +00:00
Andreas Neustifter
83d47e4f5f Converted ProfileInfo to template, added more API for ProfileInfo-preserving. 
llvm-svn: 90445
 2009-12-03 09:30:12 +00:00
Evan Cheng
1c3edb4fa8 Fill out codegen SSA updater. It's not yet tested. 
llvm-svn: 90395
 2009-12-03 02:31:43 +00:00
Chris Lattner
09df97d257 remove some dead std::ostream using code. 
llvm-svn: 90366
 2009-12-03 00:55:04 +00:00
Chris Lattner
9ce833945e improve portability to avoid conflicting with std::next in c++'0x. 
Patch by Howard Hinnant!

llvm-svn: 90365
 2009-12-03 00:50:42 +00:00
Bill Wendling
db54e8c67c This initial code is meant to convert TargetData to use an AbstractTypesUser so 
that it doesn't have dangling pointers when abstract types are resolved. This
modifies it somewhat to address comments: making the "StructLayoutMap" an
anonymous structure, calling "removeAbstractTypeUser" when appropriate, and
adding asserts where helpful.

llvm-svn: 90362
 2009-12-03 00:17:12 +00:00