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394 Commits

Author SHA1 Message Date
Dale Johannesen 4bbd2eefba Fix incorrect combination of different loads. Reenable zext-over-truncate 
combination.

llvm-svn: 35517
 2007-03-30 21:38:07 +00:00
Chris Lattner 47206667c0 fold away addc nodes when we know there cannot be a carry-out. 
llvm-svn: 34913
 2007-03-04 20:40:38 +00:00
Chris Lattner 362621c7ae eliminate some ops if they have an undef RHS 
llvm-svn: 34908
 2007-03-04 20:01:46 +00:00
Chris Lattner 387f464121 fold trivial token factor nodes. This allows us to compile 
test/CodeGen/X86/fp-stack-ret.ll into:

        movl 4(%esp), %eax
        fldl (%eax)
        ret

instead of:

        subl $12, %esp
        movl 16(%esp), %eax
        movsd (%eax), %xmm0
        movsd %xmm0, (%esp)
        fldl (%esp)
        addl $12, %esp
        ret

by eliminating a token factor that blocked a check.

llvm-svn: 34584
 2007-02-25 08:24:27 +00:00
Jim Laskey 4b37a4c712 Selection and lowering for exception handling. 
llvm-svn: 34481
 2007-02-21 22:53:45 +00:00
Chris Lattner 9af2c86bc8 Introduce new UnarySDNode/BinarySDNode/TernarySDNode nodes, which coallocate 
their operands with the node itself.  This reduces malloc traffic for operand
lists.  This reduces isel time on kc++ from 2.6164 to 2.5570s, about 2.3%.

llvm-svn: 33878
 2007-02-04 08:35:21 +00:00
Chris Lattner 22639f3d90 eliminate the SDNode::setValueTypes method. 
llvm-svn: 33876
 2007-02-04 07:37:24 +00:00
Chris Lattner f17b4222e2 eliminate a bunch of duplicate ctors and helper functions. 
llvm-svn: 33875
 2007-02-04 07:28:00 +00:00
Chris Lattner edfc7e5fa2 move MorphNode to out of line and merge setNodeOperands into it. There is 
no behavior or performance change here.

llvm-svn: 33869
 2007-02-04 02:49:29 +00:00
Chris Lattner 3bf17b6fa5 simplify MorphNodeTo to take a VTList operand. 
llvm-svn: 33868
 2007-02-04 02:41:42 +00:00
Chris Lattner 486edfbc6f eliminate some extraneous methods in SDNode 
llvm-svn: 33867
 2007-02-04 02:32:44 +00:00
Chris Lattner 20754cc579 Give each selectiondag node class a home for it's vtable and rtti info 
llvm-svn: 33866
 2007-02-04 02:23:32 +00:00
Chris Lattner cba058ce51 Eliminate some std::sets. This speeds up isel of kimwitu by about 0.9% 
llvm-svn: 33852
 2007-02-04 00:24:41 +00:00
Chris Lattner feec7137ce Switch SelectionDAG::ReplaceAllUsesOfValueWith to use a SmallSetVector for 
the users set (most nodes have 1 or 2 users).  This speeds up the isel pass
3.2% on kimwitu.

llvm-svn: 33849
 2007-02-04 00:14:31 +00:00
Chris Lattner 296a83cefb Fit in 80 columns 
llvm-svn: 33745
 2007-02-01 04:55:59 +00:00
Nate Begeman eda5997cc8 Finish off bug 680, allowing targets to custom lower frame and return 
address nodes.

llvm-svn: 33636
 2007-01-29 22:58:52 +00:00
Jim Laskey f9e5445ed4 Make LABEL a builtin opcode. 
llvm-svn: 33537
 2007-01-26 14:34:52 +00:00
Bill Wendling 355fc5ad50 Removed more <iostream> includes 
llvm-svn: 32321
 2006-12-07 20:28:15 +00:00
Bill Wendling 22e978a736 Removing even more <iostream> includes. 
llvm-svn: 32320
 2006-12-07 20:04:42 +00:00
Jeff Cohen cc08c83186 Unbreak VC++ build. 
llvm-svn: 32113
 2006-12-02 02:22:01 +00:00
Evan Cheng f64da389f8 Fix an incorrectly inverted condition. 
llvm-svn: 31773
 2006-11-16 00:08:20 +00:00
Reid Spencer 2230144a75 Make an assert comment match the tested assertion. 
llvm-svn: 31686
 2006-11-11 20:07:59 +00:00
Evan Cheng b15000736c Rename ISD::MemOpAddrMode to ISD::MemIndexedMode 
llvm-svn: 31595
 2006-11-09 17:55:04 +00:00
Jim Laskey 61feeb90f9 Remove redundant <cmath>. 
llvm-svn: 31561
 2006-11-08 19:16:44 +00:00
Jeff Cohen 7d6f3db3e2 Unbreak VC++ build. 
llvm-svn: 31464
 2006-11-05 19:31:28 +00:00
Evan Cheng 1a1e23eff7 Added getIndexedStore. 
llvm-svn: 31458
 2006-11-05 09:30:09 +00:00
Evan Cheng 9456dd8b81 Fix comments. 
llvm-svn: 31414
 2006-11-03 07:31:32 +00:00
Evan Cheng c176f038b9 Added isPredecessor. 
llvm-svn: 31409
 2006-11-03 03:05:24 +00:00
Chris Lattner cd7b92251d silence warning 
llvm-svn: 31397
 2006-11-03 01:28:29 +00:00
Reid Spencer de46e48420 For PR786: 
Turn on -Wunused and -Wno-unused-parameter. Clean up most of the resulting
fall out by removing unused variables. Remaining warnings have to do with
unused functions (I didn't want to delete code without review) and unused
variables in generated code. Maintainers should clean up the remaining
issues when they see them. All changes pass DejaGnu tests and Olden.

llvm-svn: 31380
 2006-11-02 20:25:50 +00:00
Evan Cheng 415f365e5c Print jumptable index. 
llvm-svn: 31340
 2006-11-01 04:48:30 +00:00
Evan Cheng c3e695137d Added a new SDNode type: BR_JT for jumptable branch. 
llvm-svn: 31292
 2006-10-30 07:59:36 +00:00
Evan Cheng 7ab6123c42 VLOAD is not the LoadSDNode opcode. 
llvm-svn: 31276
 2006-10-29 06:14:47 +00:00
Nick Lewycky dc146a9fb9 Remove spurious case. EXTLOAD is not one of the node opcodes. 
llvm-svn: 31275
 2006-10-29 02:26:30 +00:00
Jim Laskey eef273a16f Load and stores have not been uniqued properly. 
llvm-svn: 31261
 2006-10-28 17:25:28 +00:00
Chris Lattner b78eb6c8d1 Fix a serious bug that caused any x86 vector stuff to infinite loop 
llvm-svn: 31254
 2006-10-28 06:15:26 +00:00
Jim Laskey bd0f088743 Clean up. 
llvm-svn: 31243
 2006-10-27 23:52:51 +00:00
Jim Laskey f576b42bb2 Switch over from SelectionNodeCSEMap to FoldingSet. 
llvm-svn: 31240
 2006-10-27 23:46:08 +00:00
Evan Cheng 96d6bf50ae getPreIndexedLoad -> getIndexedLoad. 
llvm-svn: 31209
 2006-10-26 21:53:40 +00:00
Chris Lattner 78fd0f83ff Trivial patch to speed up legalizing common i64 constants. 
llvm-svn: 31020
 2006-10-17 21:47:13 +00:00
Evan Cheng 1839d76f69 Reflect MemOpAddrMode change; added a helper to create pre-indexed load. 
llvm-svn: 31016
 2006-10-17 21:14:32 +00:00
Jim Laskey e7d2c24a7d Make it simplier to dump DAGs while in DAGCombiner. Remove a nasty optimization. 
llvm-svn: 31009
 2006-10-17 19:33:52 +00:00
Chris Lattner bd9acad805 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 45ffb1eb70 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
Evan Cheng ab51cf2e78 Merge ISD::TRUNCSTORE to ISD::STORE. Switch to using StoreSDNode. 
llvm-svn: 30945
 2006-10-13 21:14:26 +00:00
Evan Cheng a731cb674a Add RemoveDeadNode to remove a dead node and its (potentially) dead operands. 
llvm-svn: 30916
 2006-10-12 20:34:05 +00:00
Evan Cheng d35734bd1f Naming consistency. 
llvm-svn: 30878
 2006-10-11 07:10:22 +00:00
Andrew Lenharth a6bbf33cbf Jimptables working again on alpha. 
As a bonus, use the GOT node instead of the AlphaISD::GOT for internal stuff.

llvm-svn: 30873
 2006-10-11 04:29:42 +00:00
Evan Cheng 2da4671e05 FindModifiedNodeSlot needs to add LoadSDNode ivars to create proper SelectionDAGCSEMap ID. 
llvm-svn: 30866
 2006-10-11 01:47:58 +00:00
Evan Cheng fe858538c0 SDNode::dump should also print out extension type and VT. 
llvm-svn: 30860
 2006-10-10 20:05:10 +00:00