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06f4428abc
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Author SHA1 Message Date
Jim Laskey
06f4428abc Pass AliasAnalysis thru to DAGCombiner. 
llvm-svn: 30984
 2006-10-16 20:52:31 +00:00
Chris Lattner
3bfbb5eabd add a ReplaceMBBInJumpTables method 
llvm-svn: 30983
 2006-10-16 20:41:42 +00:00
Jim Laskey
5fe261bc52 Global name regression. 
llvm-svn: 30982
 2006-10-16 19:38:41 +00:00
Rafael Espindola
25fbeb5ec2 define the DFPBinOp class 
llvm-svn: 30981
 2006-10-16 18:39:22 +00:00
Rafael Espindola
57dc40a3a8 add the FPBinOp class 
llvm-svn: 30980
 2006-10-16 18:32:36 +00:00
Rafael Espindola
8a40de94f2 define the Addr1BinOp class 
llvm-svn: 30979
 2006-10-16 18:18:14 +00:00
Rafael Espindola
6554b1014d define the IntBinOp class and use it to implement the multiply instructions 
llvm-svn: 30978
 2006-10-16 17:57:20 +00:00
Rafael Espindola
71ae8c3d4a fix assembly syntax 
llvm-svn: 30977
 2006-10-16 17:38:12 +00:00
Rafael Espindola
d255bfb09b implement LDRB, LDRSB, LDRH and LDRSH 
llvm-svn: 30976
 2006-10-16 17:17:22 +00:00
Rafael Espindola
93359fa883 implement smull and umull 
llvm-svn: 30975
 2006-10-16 16:33:29 +00:00
Evan Cheng
ca5eaf4020 Avoid getting into an infinite loop when -disable-x86-shuffle-opti is specified. 
llvm-svn: 30974
 2006-10-16 06:36:00 +00:00
Evan Cheng
c73547a71d SelectScalarSSELoad should call CanBeFoldedBy as well. 
llvm-svn: 30973
 2006-10-16 06:34:55 +00:00
Evan Cheng
f872538d4b Passing isel root and use operands to ComplexPattern functions, these should do the usual load folding checks as well. 
llvm-svn: 30972
 2006-10-16 06:33:44 +00:00
Chris Lattner
9ecd9bcde4 regenerate 
llvm-svn: 30971
 2006-10-15 23:27:25 +00:00
Chris Lattner
2ac6ca0f82 Produce a useful error message for Regression/Verifier/2006-10-15-AddrLabel.ll 
llvm-svn: 30970
 2006-10-15 23:26:46 +00:00
Chris Lattner
a5383a5b2d testcase that causes the asmparser to assert 
llvm-svn: 30969
 2006-10-15 23:26:28 +00:00
Chris Lattner
5a4d067b26 label* is not a valid type, add an assertion. 
llvm-svn: 30968
 2006-10-15 23:21:12 +00:00
Chris Lattner
fd983f91e7 fix a buggy check that accidentally disabled this xform 
llvm-svn: 30967
 2006-10-15 22:42:15 +00:00
Chris Lattner
99ce7667fb clarify 
llvm-svn: 30966
 2006-10-15 20:05:59 +00:00
Reid Spencer
88ad34206e Document the VAArg, and vector instruction opcodes. 
llvm-svn: 30965
 2006-10-15 00:11:05 +00:00
Anton Korobeynikov
61d88967b9 Align stack size to DWORD boundary 
llvm-svn: 30964
 2006-10-14 20:53:35 +00:00
Rafael Espindola
c426cede28 expand ISD::BRCOND 
llvm-svn: 30963
 2006-10-14 17:59:54 +00:00
Rafael Espindola
38c602f658 fix some fp condition codes 
use non trapping comparison instructions

llvm-svn: 30962
 2006-10-14 13:42:53 +00:00
Jim Laskey
1070dfefba Tidy up after truncstore changes. 
llvm-svn: 30961
 2006-10-14 12:14:27 +00:00
Evan Cheng
078a38abd7 One cyclic dag a day is good for ya... 
llvm-svn: 30960
 2006-10-14 08:35:02 +00:00
Evan Cheng
bfd74c6d9c Debug tweak. 
llvm-svn: 30959
 2006-10-14 08:34:06 +00:00
Evan Cheng
6c8de88f88 Corrected load folding check. We need to start from the root of the sub-dag 
being matched and ensure there isn't a non-direct path to the load (i.e. a
path that goes out of the sub-dag.)

llvm-svn: 30958
 2006-10-14 08:33:25 +00:00
Evan Cheng
c8b9d15614 Start checking from the root of the matched sub-tree. 
llvm-svn: 30957
 2006-10-14 08:30:53 +00:00
Evan Cheng
513dc7ed5f When checking if a load can be folded, we check if there is any non-direct 
way to reach the load via any nodes that would be folded. Start from the
root of the matched sub-tree.

llvm-svn: 30956
 2006-10-14 08:30:15 +00:00
Chris Lattner
08aa96b824 Make sure that the node returned by SimplifySetCC is added to the worklist 
so that it can be deleted if unused.

llvm-svn: 30955
 2006-10-14 03:52:46 +00:00
Chris Lattner
3fbcd8519e testcase for recent dag combiner patch. Before the entry bb was: 
_test:
        stwu r1, -80(r1)
        stw r1, 76(r1)
        mflr r11
        stw r11, 88(r1)
        rlwinm r2, r4, 0, 30, 31
        cmplwi cr7, r2, 2
        mfcr r2
        rlwinm r2, r2, 30, 31, 31
        cmplwi cr0, r2, 0
        bne cr0, LBB1_2 ;UnifiedReturnBlock

after it is:

_test:
        stwu r1, -80(r1)
        stw r1, 76(r1)
        mflr r11
        stw r11, 88(r1)
        rlwinm r2, r4, 0, 30, 31
        cmplwi cr0, r2, 2
        bgt cr0, LBB1_2 ;UnifiedReturnBlock

llvm-svn: 30954
 2006-10-14 03:40:02 +00:00
Chris Lattner
a515f322f3 fold setcc of a setcc. 
llvm-svn: 30953
 2006-10-14 01:02:29 +00:00
Chris Lattner
25ad62d132 When SimplifySetCC was moved to the DAGCombiner, it was never removed from 
SelectionDAG and it has since bitrotted.  Remove the copy from SelectionDAG.
Next, remove the constant folding piece of DAGCombiner::SimplifySetCC into
a new FoldSetCC method which can be used by getNode() and SimplifySetCC.

This fixes obscure bugs.

llvm-svn: 30952
 2006-10-14 00:41:01 +00:00
Chris Lattner
c4be6ee8b8 disable this pass for now, it's causing issues 
llvm-svn: 30951
 2006-10-14 00:30:06 +00:00
Chris Lattner
1c35d27fc4 falling off the end of a function is ok with an unreachable instruction. 
llvm-svn: 30950
 2006-10-14 00:21:48 +00:00
Chris Lattner
cfa6a33663 testcase for recent selectiondag patch 
llvm-svn: 30949
 2006-10-13 23:54:16 +00:00
Jim Laskey
bf50140aac Reduce the workload by not adding chain users to work list. 
llvm-svn: 30948
 2006-10-13 23:32:28 +00:00
Chris Lattner
9b1878a28c Fix a bug where we incorrectly turned '(X & 0) == 0' into '(X & 0) >> -1', 
which is undefined.  "0" isn't a power of 2.

llvm-svn: 30947
 2006-10-13 22:46:18 +00:00
Chris Lattner
b90d66b7da implement branch inspection/modification methods. 
llvm-svn: 30946
 2006-10-13 21:21:17 +00:00
Evan Cheng
fe5bb5dbe6 Merge ISD::TRUNCSTORE to ISD::STORE. Switch to using StoreSDNode. 
llvm-svn: 30945
 2006-10-13 21:14:26 +00:00
Chris Lattner
b441d8e8ce it is easier to implement these when they are virtual 
llvm-svn: 30944
 2006-10-13 21:02:27 +00:00
Chris Lattner
520bf168f5 allow branch reversal to fail 
llvm-svn: 30943
 2006-10-13 20:59:31 +00:00
Bill Wendling
85f53a4427 Corrected formatting. 
llvm-svn: 30942
 2006-10-13 20:53:50 +00:00
Chris Lattner
87d16e0ed9 add the branch folding pass as a late cleanup pass for all targets. For now 
it just deletes empty MBB's.  Soon it will do more :)

llvm-svn: 30941
 2006-10-13 20:45:56 +00:00
Chris Lattner
f8eaaded24 replace the existing branch inspection/modification APIs with something more 
useful and general.

llvm-svn: 30940
 2006-10-13 20:44:01 +00:00
Chris Lattner
ae19ea4b2a disable some objectionable code, maybe we can bring this pass to life 
llvm-svn: 30939
 2006-10-13 20:43:10 +00:00
Chris Lattner
bea7a9de50 remove some dead code 
llvm-svn: 30938
 2006-10-13 20:40:42 +00:00
Chris Lattner
b22754853b add note 
llvm-svn: 30937
 2006-10-13 20:20:58 +00:00
Chris Lattner
14f18d4896 set isBarrier correctly 
llvm-svn: 30936
 2006-10-13 19:10:34 +00:00
Chris Lattner
a3f4e611a4 Correctly handle instruction separators. 
llvm-svn: 30935
 2006-10-13 17:56:02 +00:00