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Author SHA1 Message Date
Bill Wendling
826f093517 Also revert r63206 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63041 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-26 21:30:17 +00:00
Bill Wendling
34b946b8fb Temporarily revert r63025 until the testsuite failures can be fixed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63040 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-26 21:27:03 +00:00
Dan Gohman
94cb2bf4e7 Fix the name of an argument. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63037 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-26 20:27:11 +00:00
Anton Korobeynikov
36c826ad95 During bittest switch lowering emit shift in the test block, which should (theoretically) 
allow us to generate more efficient code. We don't do this now though :)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63027 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-26 19:26:01 +00:00
Owen Anderson
d7250517b0 Get rid of a bunch of dead code now that interval reconstruction is enabled. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63026 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-26 19:18:06 +00:00
Owen Anderson
8af1e761f8 Fix an issue where LiveIntervals was trying to be smart about removing kill 
markers, and ended up foiling the interval reconstruction.

This allows us to turn on reconstruction in the pre alloc splitter, which
fixes a number of miscompilations.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63025 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-26 19:12:06 +00:00
Evan Cheng
5b2e5893c6 Enhance logic in X86DAGToDAGISel::PreprocessForRMW which move load inside callseq_start to allow it to be folded into a call. It was not considering the cases where a token factor is between the load and the callseq_start. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63022 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-26 18:43:34 +00:00
Evan Cheng
b964f33873 Silence a bogus compiler warning. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63021 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-26 18:33:51 +00:00
Steve Naroff
544526885b Update VS project files. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63017 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-26 18:08:55 +00:00
Roman Levenstein
8d8a0c36b7 Fix a bug in BitVector.h. All assignment operations (except the usual 
assignment operator) were returning a copy of the bit vector, instead of a
reference! This old semantics probably did not meet the expectations.
With this patch, chained assignments happen to the right object.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63012 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-26 11:07:20 +00:00
Evan Cheng
c4b1abd81e Actually source file has already been uniquified into an id during isel. Eliminate the StringMap. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63009 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-26 07:53:42 +00:00
Evan Cheng
d0adbb5b7d Add data structure to define and track debug location during codegen. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63008 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-26 07:41:49 +00:00
Evan Cheng
d5362986da Looks like comments were chopped off. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63007 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-26 07:40:13 +00:00
Evan Cheng
891415b5a2 LLVM_SUPPORT_DEBUGINFO_H -> LLVM_ANALYSIS_DEBUGINFO_H since DebugInfo.h is under Analysis. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63005 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-26 07:31:20 +00:00
Mon P Wang
fe6d2cd9d1 Fixed optimization of combining two shuffles where the first shuffle inputs 
has a different number of elements than the output.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62998 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-26 04:39:00 +00:00
Dan Gohman
e7852d0144 Take the next steps in making SDUse more consistent with LLVM Use, and 
tidy up SDUse and related code.
 - Replace the operator= member functions with a set method, like
   LLVM Use has, and variants setInitial and setNode, which take
   care up updating use lists, like LLVM Use's does. This simplifies
   code that calls these functions.
 - getSDValue() is renamed to get(), as in LLVM Use, though most
   places can either use the implicit conversion to SDValue or the
   convenience functions instead.
 - Fix some more node vs. value terminology issues.

Also, eliminate the one remaining use of SDOperandPtr, and
SDOperandPtr itself.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62995 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-26 04:35:06 +00:00
Scott Michel
19c10e658a Untabify code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62991 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-26 03:37:41 +00:00
Scott Michel
c9c8b2a804 CellSPU: 
- Rename fcmp.ll test to fcmp32.ll, start adding new double tests to fcmp64.ll
- Fix select_bits.ll test
- Capitulate to the DAGCombiner and move i64 constant loads to instruction
  selection (SPUISelDAGtoDAG.cpp).

  <rant>DAGCombiner will insert all kinds of 64-bit optimizations after
  operation legalization occurs and now we have to do most of the work that
  instruction selection should be doing twice (once to determine if v2i64
  build_vector can be handled by SelectCode(), which then runs all of the
  predicates a second time to select the necessary instructions.) But,
  CellSPU is a good citizen.</rant>


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62990 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-26 03:31:40 +00:00
Nate Begeman
5bf4b7556f Fix a typo 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62989 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-26 03:15:54 +00:00
Nate Begeman
c2fd67f697 De-identifying per sabre review 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62988 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-26 03:15:31 +00:00
Nick Lewycky
1281741311 Build libLTO on any platform so long as PIC is enabled. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62987 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-26 03:04:57 +00:00
Nate Begeman
34509841e7 Add some documentation for address-space-based access to the segment registers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62986 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-26 02:54:45 +00:00
Chris Lattner
18f02318a6 Handle single-entry phi nodes gracefully in condprop. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62985 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-26 02:18:20 +00:00
Chris Lattner
3796a262c5 Fix PR3408 by making a non-obvious assumption very obvious, and 
handling the flaw inherent in that assumption.  :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62984 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-26 02:11:30 +00:00
Chris Lattner
f6784a3262 More cleanups and simplifications, no functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62983 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-26 01:57:01 +00:00
Chris Lattner
2ba2543df2 tidy asserts 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62982 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-26 01:38:24 +00:00
Nate Begeman
51a0437b16 Map address space 256 to gs; similar mappings could be supported for the 
other x86 segments.  address space 0 is stack/default, 1-255 are reserved for
client use.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62980 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-26 01:24:32 +00:00
Nate Begeman
740ab03f12 Support pattern matching various x86 sse shifts. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62979 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-26 00:52:55 +00:00
Chris Lattner
4469c53cfc silence a warning when assertions are disabled. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62976 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-25 23:08:00 +00:00
Torok Edwin
afb564c697 should have removed the + when manually applying a patch! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62973 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-25 20:29:34 +00:00
Torok Edwin
c8ad2d2abf revert this patch for now, because Codegen does still want to generate SSE code, 
for example in the case of va-args. XFAIL associated tests.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62972 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-25 20:21:24 +00:00
Torok Edwin
a10b879b4c testcase for llvm-gcc part of PR3402. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62969 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-25 18:00:06 +00:00
Torok Edwin
7f1d5252c7 If user explicitly asks not to use SSE, don't force it. This fixes LLVM part of PR3402. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62967 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-25 17:58:56 +00:00
Dan Gohman
399461095b Eliminate the loop that searches through each of the operands 
of each use in the SelectionDAG ReplaceAllUses* functions. Thanks
to Chris for spotting this opportunity.

Also, factor out code from all 5 of the ReplaceAllUses* functions
into AddNonLeafNodeToCSEMaps, which is now renamed
AddModifiedNodeToCSEMaps to more accurately reflect its purpose.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62964 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-25 16:29:12 +00:00
Dan Gohman
74692c0d65 Whitespace tidiments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62963 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-25 16:21:38 +00:00
Dan Gohman
e77f89de8c Move the N->use_empty() assert from DeleteNode to 
DeleteNodeNotInCSEMaps, since DeleteNode just calls
DeleteNodeNotInCSEMaps.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62962 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-25 16:20:37 +00:00
Dan Gohman
d5b455f6b0 Reality-check the FAQ entry for "Can I use LLVM to convert C++ to C?" 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62961 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-25 16:04:50 +00:00
Nick Lewycky
237d873439 Start generating arbitrary precision integer SCEVs. This removes the temporary 
code that rounded up and capped the size.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62958 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-25 08:16:27 +00:00
Nick Lewycky
67e1f49a50 Actually run the test in this directory. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62957 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-25 08:05:07 +00:00
Nick Lewycky
9d4979123e The function that does nothing but call malloc is noalias return. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62956 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-25 07:59:57 +00:00
Evan Cheng
1902a129a5 Private linkage support for PPC / Darwin. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62955 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-25 06:32:01 +00:00
Evan Cheng
d498c8f2c8 Teach 2addr pass to be do more commuting. If both uses of a two-address instruction are killed, but the first operand has a use before and after the def, commute if the second operand does not suffer from the same issue. 
%reg1028<def> = EXTRACT_SUBREG %reg1027<kill>, 1                                                                                                                                     
%reg1029<def> = MOV8rr %reg1028                                                                                                                                                      
%reg1029<def> = SHR8ri %reg1029, 7, %EFLAGS<imp-def,dead>                                                                                                                            
insert => %reg1030<def> = MOV8rr %reg1028                                                                                                                                            
%reg1030<def> = ADD8rr %reg1028<kill>, %reg1029<kill>, %EFLAGS<imp-def,dead>                                                                                                         

In this case, it might not be possible to coalesce the second MOV8rr                                                                                                                 
instruction if the first one is coalesced. So it would be profitable to                                                                                                              
commute it:                                                                                                                                                                          
%reg1028<def> = EXTRACT_SUBREG %reg1027<kill>, 1                                                                                                                                     
%reg1029<def> = MOV8rr %reg1028                                                                                                                                                      
%reg1029<def> = SHR8ri %reg1029, 7, %EFLAGS<imp-def,dead>                                                                                                                            
insert => %reg1030<def> = MOV8rr %reg1029                                                                                                                                            
%reg1030<def> = ADD8rr %reg1029<kill>, %reg1028<kill>, %EFLAGS<imp-def,dead>


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62954 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-25 03:53:59 +00:00
Nate Begeman
9b99485074 Fix an indent and a typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62940 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-24 22:12:48 +00:00
Dale Johannesen
381e6f6b7d Revert previous change; even this mild and clearly 
more accurate change loses more than it gains on
benchmarks.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62938 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-24 21:49:34 +00:00
Torok Edwin
e46a686dc2 add note about possible GEP improvement with fields of size 0. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62925 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-24 19:30:25 +00:00
Dan Gohman
54e853a779 Add a PR comment to this test. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62921 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-24 17:32:54 +00:00
Torok Edwin
08ffee539e testcase for PR3381. 
Also it was an empty struct, not a void after all.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62920 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-24 17:16:04 +00:00
Dan Gohman
d8791e5ed7 Add more documentation mentioning the limitations due to PR2660. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62919 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-24 15:58:40 +00:00
Torok Edwin
629e92b63b void* is represented as pointer to empty struct {}. 
Thus we need to check whether the struct is empty before trying to index into
it. This fixes PR3381.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62918 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-24 11:30:49 +00:00
Owen Anderson
32ca8657b8 Some cleanups. No functional changes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62917 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-24 10:07:43 +00:00