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4561 Commits

Author SHA1 Message Date
Reid Spencer
1abf69e923 For PR950: 
Replace the REM instruction with UREM, SREM and FREM.

llvm-svn: 31369
 2006-11-02 01:53:59 +00:00
Chris Lattner
4cb79a5f9d generalize this api 
llvm-svn: 31365
 2006-11-02 01:39:10 +00:00
Evan Cheng
1da5ee8485 Rename 
llvm-svn: 31364
 2006-11-01 23:18:32 +00:00
Evan Cheng
b1ac9f6c12 Added getTiedToSrcOperand() to check for two-address'ness. 
llvm-svn: 31360
 2006-11-01 23:00:31 +00:00
Evan Cheng
83b0827a2e Add a printSetLabel that takes two id's. 
llvm-svn: 31347
 2006-11-01 09:23:08 +00:00
Evan Cheng
c566892bd5 Add operand constraints to TargetInstrInfo. 
llvm-svn: 31333
 2006-11-01 00:27:05 +00:00
Chris Lattner
d9afd310a6 Change the prototype for TargetLowering::isOperandValidForConstraint 
llvm-svn: 31318
 2006-10-31 19:40:43 +00:00
Anton Korobeynikov
9867bf5eaf Unbreaking static ctors patch. 
Defaulting second arguments of SwitchTo*Section, this should make things
somehow clearer.

llvm-svn: 31306
 2006-10-31 06:11:06 +00:00
Reid Spencer
e01994f8b1 Don't mislead readers by claiming a variable is defaulted to false when 
the default is actually true.

llvm-svn: 31300
 2006-10-30 22:46:49 +00:00
Reid Spencer
db06ed9156 Add debug support for X86/ELF targets (Linux). This allows llvm-gcc4 
generated object modules to be debugged with gdb. Hopefully this helps
pre-release debugging.

llvm-svn: 31299
 2006-10-30 22:32:30 +00:00
Jim Laskey
1ccb7c5d03 Simplify DwarfWriter header. 
llvm-svn: 31295
 2006-10-30 13:35:07 +00:00
Evan Cheng
7437ed9f30 Added a new SDNode type: BR_JT for jumptable branch. 
llvm-svn: 31292
 2006-10-30 07:59:36 +00:00
Chris Lattner
5c33fa2a37 add a new form of insert. 
llvm-svn: 31290
 2006-10-30 05:07:51 +00:00
Chris Lattner
9a99a284dc Add SmallString a (currently) minimal class that adapts SmallVector to be 
more string-like.

llvm-svn: 31289
 2006-10-30 03:39:20 +00:00
Chris Lattner
593e2361b4 add a method 
llvm-svn: 31288
 2006-10-30 03:14:15 +00:00
Chris Lattner
08b405916c add newline at end of file 
llvm-svn: 31287
 2006-10-29 23:47:01 +00:00
Chris Lattner
1db6efc297 add a highly efficient hash table that is specialized for mapping C strings 
to some other type.

llvm-svn: 31286
 2006-10-29 23:42:03 +00:00
Chris Lattner
6a498a7658 Add a new llvm::Allocator abstraction, which will be used by a container 
I'm about to add.  This is similar to, but necessarily different than, the
STL allocator class.

llvm-svn: 31285
 2006-10-29 22:08:03 +00:00
Chris Lattner
fbe8021392 add an assertion 
llvm-svn: 31272
 2006-10-28 18:21:51 +00:00
Chris Lattner
2d12a0cb70 remove dead method 
llvm-svn: 31271
 2006-10-28 18:21:29 +00:00
Chris Lattner
bcd43c46ab add a method for hacking on JTIdx's 
llvm-svn: 31270
 2006-10-28 18:18:36 +00:00
Chris Lattner
3c19558b6b const'ify jump table stuff 
llvm-svn: 31269
 2006-10-28 18:17:09 +00:00
Chris Lattner
fa7bf778e5 add a method for deleting dead jump tables. 
llvm-svn: 31268
 2006-10-28 18:12:00 +00:00
Chris Lattner
394da08e59 determine whether a change was made 
llvm-svn: 31265
 2006-10-28 18:00:05 +00:00
Chris Lattner
dcfee77788 add another target hook for branch folding. 
llvm-svn: 31262
 2006-10-28 17:29:57 +00:00
Chris Lattner
65f872288d add option to isCriticalEdge 
llvm-svn: 31258
 2006-10-28 06:58:17 +00:00
Chris Lattner
85bc826ca6 Expose a smarter way to break critical edges. 
llvm-svn: 31256
 2006-10-28 06:44:56 +00:00
Jim Laskey
f5452dfa52 Editorial clean up. 
llvm-svn: 31250
 2006-10-28 01:34:21 +00:00
Chris Lattner
44b3550217 add a method 
llvm-svn: 31249
 2006-10-28 01:24:05 +00:00
Jim Laskey
ef56bc9680 Switch over from SelectionNodeCSEMap to FoldingSet. 
llvm-svn: 31240
 2006-10-27 23:46:08 +00:00
Jim Laskey
e65b6c3c60 Clean up 
llvm-svn: 31238
 2006-10-27 22:52:02 +00:00
Chris Lattner
05159debc4 Turn conditions like x<Y|z==q into multiple blocks. 
This compiles Regression/CodeGen/X86/or-branch.ll into:

_foo:
        subl $12, %esp
        call L_bar$stub
        movl 20(%esp), %eax
        movl 16(%esp), %ecx
        cmpl $5, %eax
        jl LBB1_1       #cond_true
LBB1_3: #entry
        testl %ecx, %ecx
        jne LBB1_2      #UnifiedReturnBlock
LBB1_1: #cond_true
        call L_bar$stub
        addl $12, %esp
        ret
LBB1_2: #UnifiedReturnBlock
        addl $12, %esp
        ret

instead of:

_foo:
        subl $12, %esp
        call L_bar$stub
        movl 20(%esp), %eax
        movl 16(%esp), %ecx
        cmpl $4, %eax
        setg %al
        testl %ecx, %ecx
        setne %cl
        testb %cl, %al
        jne LBB1_2      #UnifiedReturnBlock
LBB1_1: #cond_true
        call L_bar$stub
        addl $12, %esp
        ret
LBB1_2: #UnifiedReturnBlock
        addl $12, %esp
        ret

And on ppc to:

        cmpwi cr0, r29, 5
        blt cr0, LBB1_1 ;cond_true
LBB1_3: ;entry
        cmplwi cr0, r30, 0
        bne cr0, LBB1_2 ;UnifiedReturnBlock

instead of:

        cmpwi cr7, r4, 4
        mfcr r2
        addic r4, r3, -1
        subfe r30, r4, r3
        rlwinm r29, r2, 30, 31, 31
        and r2, r29, r30
        cmplwi cr0, r2, 0
        bne cr0, LBB1_2 ;UnifiedReturnBlock

llvm-svn: 31230
 2006-10-27 21:36:01 +00:00
Jim Laskey
3d1116e32c Apply editorials. 
llvm-svn: 31218
 2006-10-27 18:05:12 +00:00
Jim Laskey
69b57830c2 Breakout folding hash set from SelectionDAGCSEMap. 
llvm-svn: 31215
 2006-10-27 16:16:16 +00:00
Evan Cheng
d2d6b83b83 Indexed load / store changes. 
llvm-svn: 31208
 2006-10-26 21:52:24 +00:00
Devang Patel
ac5109eec8 Save temp. bc files when saveTemps flag is true. Use final output file 
name supplied by linker to construct temp bc file names.

Remove tabs.

llvm-svn: 31205
 2006-10-26 20:46:22 +00:00
Evan Cheng
5963dcb6e8 Added CStringSection. 
llvm-svn: 31202
 2006-10-26 19:16:20 +00:00
Evan Cheng
9d0bfecda6 Add isCString() - returns true if a ConstantArray is a CString. 
llvm-svn: 31201
 2006-10-26 19:15:05 +00:00
Chris Lattner
257998ec14 Add isFPOrFPVector() method, which indicates if a type is either FP or a 
vector of FP types.

llvm-svn: 31198
 2006-10-26 18:22:45 +00:00
Reid Spencer
6833ffe8b8 For PR950: 
Make necessary changes to support DIV -> [SUF]Div. This changes llvm to
have three division instructions: signed, unsigned, floating point. The
bytecode and assembler are bacwards compatible, however.

llvm-svn: 31195
 2006-10-26 06:15:43 +00:00
Devang Patel
3c1afad503 Supply alignment info to linker through LLVMSymbol. 
llvm-svn: 31181
 2006-10-25 18:10:07 +00:00
Devang Patel
cb480ce29c TargetData is not subclassed. So no need to have virtual method. 
llvm-svn: 31173
 2006-10-24 20:48:29 +00:00
Devang Patel
0691019e12 Move getPreferredAlignmentLog from AsmPrinter to TargetData 
llvm-svn: 31171
 2006-10-24 20:32:14 +00:00
Devang Patel
c114a200c5 Instead of hard coding global prefix, use TargetAsmInfo. 
Add LTO destructor.

llvm-svn: 31168
 2006-10-24 18:41:02 +00:00
Chris Lattner
79a1ca0a61 Generalize CaseBlock a bit more: 
Rename LHSBB/RHSBB to TrueBB/FalseBB.  Allow the RHS value to be null,
in which case the LHS is treated as a bool.

llvm-svn: 31166
 2006-10-24 17:57:59 +00:00
Chris Lattner
bc4f0e8b56 update comment 
llvm-svn: 31165
 2006-10-24 17:41:22 +00:00
Chris Lattner
fc8e70297e generalize 'CaseBlock'. It really allows any comparison to be inserted. 
llvm-svn: 31161
 2006-10-24 17:03:35 +00:00
Rafael Espindola
b35e4b16ae fix assert comment 
llvm-svn: 31154
 2006-10-24 14:47:28 +00:00
Jim Laskey
605cf8cc6a Tighter data structure for deleted debug labels. 
llvm-svn: 31152
 2006-10-24 11:50:43 +00:00
Chris Lattner
eb7ccde058 add missing dcb* intrinsics 
llvm-svn: 31147
 2006-10-24 01:07:39 +00:00
Chris Lattner
108484eb68 add two helper methods 
llvm-svn: 31143
 2006-10-23 23:35:35 +00:00
Devang Patel
5ff2903a58 Add removeModule(). 
llvm-svn: 31142
 2006-10-23 23:12:26 +00:00
Andrew Lenharth
b22538d23c change this back 
llvm-svn: 31134
 2006-10-23 19:52:54 +00:00
Jim Laskey
f6a28d7161 More complete solution to deleting blocks and debug info. 
llvm-svn: 31129
 2006-10-23 14:56:37 +00:00
Chris Lattner
9b527c4477 New, wonderful isSuccessor method 
llvm-svn: 31103
 2006-10-21 06:50:05 +00:00
Chris Lattner
f959f98fda typo 
llvm-svn: 31089
 2006-10-20 22:44:45 +00:00
Chris Lattner
b9ea8d6ddd add isIdenticalTo method to machineinstr/operand. 
llvm-svn: 31087
 2006-10-20 22:39:36 +00:00
Chris Lattner
684db58e17 add method 
llvm-svn: 31066
 2006-10-20 18:00:03 +00:00
Reid Spencer
82347acc95 Fix a comment to be accurate. 
llvm-svn: 31064
 2006-10-20 07:24:55 +00:00
Reid Spencer
d414793dbc For PR950: 
This patch implements the first increment for the Signless Types feature.
All changes pertain to removing the ConstantSInt and ConstantUInt classes
in favor of just using ConstantInt.

llvm-svn: 31063
 2006-10-20 07:07:24 +00:00
Chris Lattner
5b4ca99562 add a method to determine whether evaluation of a constant can trap. 
llvm-svn: 31059
 2006-10-20 00:27:06 +00:00
Owen Anderson
12374f766b Add support for the new "target data" information in .ll files. This provides 
a better encoding of the targets data layout, rather than trying to guess it
from the endianness and pointersize like before.

llvm-svn: 31030
 2006-10-18 02:21:12 +00:00
Chris Lattner
22e311fe77 add a method to remove a line # record. 
llvm-svn: 31025
 2006-10-17 23:16:42 +00:00
Chris Lattner
7353b07275 expose DWARF_LABEL opcode# so the branch folder can update debug info properly. 
llvm-svn: 31024
 2006-10-17 22:41:45 +00:00
Chris Lattner
ea84388ac0 update comment 
llvm-svn: 31023
 2006-10-17 22:12:15 +00:00
Chris Lattner
dd39b9d358 Do not leak all of the SourceLineInfo objects. Do not bother mallocing each 
one separately.

llvm-svn: 31022
 2006-10-17 22:06:46 +00:00
Chris Lattner
9771af72c1 minor cleanups 
llvm-svn: 31021
 2006-10-17 21:51:44 +00:00
Evan Cheng
582d22a821 Split PRE_INDEXED to PRE_INC / PRE_DEC and similarly for POST_INDEXED. 
llvm-svn: 31015
 2006-10-17 21:12:56 +00:00
Jim Laskey
37679253ae Clean up interface to getGlobalLinkName. 
llvm-svn: 31001
 2006-10-17 17:17:24 +00:00
Jim Laskey
620df3ea5f Basic support for getGlobalLinkName. 
llvm-svn: 30997
 2006-10-17 13:41:07 +00:00
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
Evan Cheng
c8b9d15614 Start checking from the root of the matched sub-tree. 
llvm-svn: 30957
 2006-10-14 08:30:53 +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
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
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
63ec35db20 Expose method and ivars for measuring inline asm length properly. 
llvm-svn: 30934
 2006-10-13 17:50:07 +00:00
Chris Lattner
cf5bfb0e80 simplify trivial function 
llvm-svn: 30924
 2006-10-12 23:50:28 +00:00
Evan Cheng
61afb767eb 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
9b31a4d4ed Naming consistency. 
llvm-svn: 30878
 2006-10-11 07:10:22 +00:00
Andrew Lenharth
4b783303e5 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
Chris Lattner
aa1741fc87 add two helper methods. 
llvm-svn: 30869
 2006-10-11 03:58:02 +00:00
Evan Cheng
8090a67f40 Comments; getChain(), getBasePtr(), etc. should return a SDOperand by value. 
llvm-svn: 30850
 2006-10-10 01:44:58 +00:00
Evan Cheng
967d6af1d2 Merging ISD::LOAD and ISD::LOADX. Added LoadSDNode to represent load nodes. 
Chain and address ptr remains as operands. SrcValue, extending mode, extending
VT (or rather loaded VT before extension) are now instance variables of
LoadSDNode.

Introduce load / store addressing modes to represent pre- and post-indexed
load and store. Also added an additional operand offset that is only used in
post-indexed mode (i.e. base ptr += offset after load/store).

Added alignment info (not yet used) and isVolatile fields.

llvm-svn: 30843
 2006-10-09 20:55:20 +00:00
Andrew Lenharth
6223a6ce63 Fix build error in gcc 3.4 and make more this general 
llvm-svn: 30839
 2006-10-09 19:05:44 +00:00
Nick Lewycky
3c69e2291b Fix usage example. 
llvm-svn: 30837
 2006-10-09 18:33:08 +00:00
Chris Lattner
e3f0524253 Fix PR897 
llvm-svn: 30820
 2006-10-08 22:28:34 +00:00
Chris Lattner
77545e4a28 Add support for targets to declare that they use a GOT 
llvm-svn: 30777
 2006-10-06 22:46:34 +00:00
Chris Lattner
621a182abd add an accessor 
llvm-svn: 30761
 2006-10-06 01:16:29 +00:00
Evan Cheng
c9e079d0c1 Add getStore() helper function to create ISD::STORE nodes. 
llvm-svn: 30758
 2006-10-05 22:57:11 +00:00
Chris Lattner
14ad447136 Add insertelement/extractelement helper ctors. 
llvm-svn: 30750
 2006-10-05 06:24:58 +00:00
Chris Lattner
94d1cfd32d remove JumpTableTextSection 
llvm-svn: 30746
 2006-10-05 03:14:23 +00:00
Chris Lattner
068190eb91 Pass the MachineFunction into EmitJumpTableInfo. 
llvm-svn: 30742
 2006-10-05 03:01:21 +00:00
Chris Lattner
da8321b52e move getSectionForFunction to AsmPrinter. 
llvm-svn: 30734
 2006-10-05 02:41:43 +00:00
Chris Lattner
6ba6d0e937 Give TargetAsmInfo a virtual dtor, add a new getSectionForFunction method. 
llvm-svn: 30732
 2006-10-05 00:35:16 +00:00
Evan Cheng
494e8e6971 Combine ISD::EXTLOAD, ISD::SEXTLOAD, ISD::ZEXTLOAD into ISD::LOADX. Add an 
extra operand to LOADX to specify the exact value extension type.

llvm-svn: 30714
 2006-10-04 00:56:09 +00:00
Chris Lattner
a05ee6de92 ADd a method 
llvm-svn: 30707
 2006-10-03 20:16:45 +00:00
Chris Lattner
77aa419991 Provide a function that ensures MBB numbering is dense and inorder. This 
can be used by MachineFunctionPasses who need this property.

llvm-svn: 30706
 2006-10-03 19:18:57 +00:00
Chris Lattner
4b7c9854bf clean up use of 'explicit'. This is PR934. 
Patch contributed by Kevin Sopp!

llvm-svn: 30701
 2006-10-03 17:09:12 +00:00
Bill Wendling
9b15198af4 Fix for PR929. The PHI nodes were being gone through for each instruction 
in a successor block for every block...resulting in some O(N^k) algorithm
which wasn't very good for performance. Calculating this information up
front and keeping it in a map made it much faster.

llvm-svn: 30697
 2006-10-03 07:20:20 +00:00
Chris Lattner
895cf34500 Move DominatorTree to immediately follow DominatorTreeBase 
llvm-svn: 30693
 2006-10-03 05:24:56 +00:00
Jim Laskey
3d44b337d9 Add ability to annotate (color) nodes in a viewGraph. 
llvm-svn: 30686
 2006-10-02 12:26:53 +00:00
Chris Lattner
1ab553b24d Override use_back in instruction/basicblock to provide more type information. 
llvm-svn: 30678
 2006-09-30 22:20:34 +00:00
Chris Lattner
78e10ebf8a Add a version of the globalvariable ctor that inserts at a specific location. 
llvm-svn: 30677
 2006-09-30 21:31:26 +00:00
Chris Lattner
220e198fbe Now that ConstantBool::True/False are gone, we can modify Type.cpp to 
eliminate its static dtors, without having code that depends on order of
initialization.  Eliminate static ctors/dtors from Type.cpp.

llvm-svn: 30667
 2006-09-28 23:38:07 +00:00
Chris Lattner
155e6b8403 Eliminate ConstantBool::True and ConstantBool::False. Instead, provide 
ConstantBool::getTrue() and ConstantBool::getFalse().

llvm-svn: 30666
 2006-09-28 23:36:21 +00:00
Chris Lattner
b512048344 refactor critical edge breaking out into the SplitCritEdgesForPHIConstants method. 
This is a baby step towards fixing PR925.

llvm-svn: 30643
 2006-09-28 06:17:10 +00:00
Chris Lattner
7e0e7c7bc9 remove dead method 
llvm-svn: 30640
 2006-09-28 00:37:43 +00:00
Chris Lattner
30da1ba0a2 new helper class to provide more explicit management of static ctor/dtors. 
llvm-svn: 30638
 2006-09-28 00:31:55 +00:00
Evan Cheng
51144ea51c - Added a hook processFunctionBeforeCalleeSaveScn(). This is called by PEI just 
before it determines which callee-save registers are to be spilled. This allows
the target to make changes such as forcing certain physical registers to be
spilled.
- Modified comments. It's important to note the order of registers in the array
returns by getCalleeSaveRegs() determines the order of callee save spill code.

llvm-svn: 30635
 2006-09-28 00:07:19 +00:00
Chris Lattner
ddf92db1ca Add support for ${:comment}, which expands to the current target's comment 
character, and ${:uid} which expands to a unique ID for the MachineInstr.
More can be added if/when they are needed.

llvm-svn: 30619
 2006-09-26 23:59:50 +00:00
Chris Lattner
167aa73273 Add support for targets that want to do something with the llvm.used list, 
because they have an aggressive linker that does dead code stripping.

llvm-svn: 30604
 2006-09-26 03:38:18 +00:00
Chris Lattner
bab51c66fc order this properly to avoid warnings in TargetAsmInfo.cpp. Add a comment 
in a format that matches every other ivars in this class.

llvm-svn: 30603
 2006-09-25 22:38:36 +00:00
Andrew Lenharth
58f5a24f0c Add support for other relocation bases to jump tables, as well as custom asm directives 
llvm-svn: 30593
 2006-09-24 19:45:58 +00:00
Chris Lattner
941d6d205a remove misleading comment 
llvm-svn: 30585
 2006-09-23 06:09:45 +00:00
Chris Lattner
bf0b610dfa add method, correct comment 
llvm-svn: 30584
 2006-09-23 04:03:45 +00:00
Devang Patel
8248ba3afc Use iterative algorith to assign DFS number. This reduces 
call stack depth.

llvm-svn: 30575
 2006-09-22 01:05:33 +00:00
Devang Patel
5bc8dcf913 Use abstract class to facilitate dlopen() interface. 
llvm-svn: 30569
 2006-09-21 17:22:55 +00:00
Nick Lewycky
ad4eb4f0de Fix findCaseDest to return null when BB is both the default dest and one 
of the numeric cases.

llvm-svn: 30468
 2006-09-18 20:44:37 +00:00
Nick Lewycky
87f79d5d69 Add a new helper method to SwitchInst. Useful when you've got a BB from 
somewhere (like the dominator graph) and would like to know which case it
came from.

llvm-svn: 30466
 2006-09-18 19:03:59 +00:00
Jim Laskey
07ac577a34 Sort out mangled names for globals 
llvm-svn: 30460
 2006-09-18 14:47:26 +00:00
Chris Lattner
3c4ca91dbd Add support for pattern matching cast operations 
llvm-svn: 30454
 2006-09-18 05:17:11 +00:00
Chris Lattner
93bc6e881f fix typo 
llvm-svn: 30453
 2006-09-18 04:58:06 +00:00
Chris Lattner
be102d68c2 add a helper method 
llvm-svn: 30452
 2006-09-18 04:54:57 +00:00
Anton Korobeynikov
7c2118575c Added some eye-candy for Subtarget type checking 
Added X86 StdCall & FastCall calling conventions. Codegen will follow.

llvm-svn: 30446
 2006-09-17 20:25:45 +00:00
Chris Lattner
547b62a967 Add ShiftInst::isLogical/ArithmeticShift methods. 
llvm-svn: 30445
 2006-09-17 19:29:56 +00:00
Chris Lattner
8aa718b0ed Add new SetCondInst::isRelational/isEquality methods. Rename 
Instruction::isRelational to Instruction::isComparison.

llvm-svn: 30444
 2006-09-17 19:14:47 +00:00
Chris Lattner
9306fac571 Keep track of the start of MBB's in a separate map from instructions. This 
is faster and is needed for future improvements.

llvm-svn: 30383
 2006-09-15 03:57:23 +00:00
Devang Patel
0d540a2f9a Undo previous check-in. 
Reintroduce recursive assignDFSNumber().

llvm-svn: 30380
 2006-09-14 21:43:24 +00:00
Anton Korobeynikov
6e19f80688 Adding dllimport, dllexport and external weak linkage types. 
DLL* linkages got full (I hope) codegeneration support in C & both x86
assembler backends.
External weak linkage added for future use, we don't provide any
codegeneration, etc. support for it.

llvm-svn: 30374
 2006-09-14 18:23:27 +00:00
Evan Cheng
489428e6f8 Add MachineConstantPoolEntry getOffset() accessor. 
llvm-svn: 30325
 2006-09-14 07:32:32 +00:00
Evan Cheng
b25fd42e43 The top bit is used to determine whether it's a MachineConstantPoolValue. 
llvm-svn: 30324
 2006-09-14 07:30:48 +00:00
Chris Lattner
31e8414b3f revert accidentally committed file 
llvm-svn: 30323
 2006-09-14 06:42:17 +00:00
Chris Lattner
2544818d6b Remove dead methods, add getNumBlockIDs() method 
llvm-svn: 30322
 2006-09-14 06:40:48 +00:00
Reid Spencer
2a3ab75d50 Add a HAVE_MACH_MACH_H #define to detect the presence of the mach/mach.h 
header file on Darwin.

llvm-svn: 30319
 2006-09-14 06:17:21 +00:00
Evan Cheng
b68bfafe09 Mirrors ConstantPoolSDNode. 
llvm-svn: 30314
 2006-09-14 05:48:39 +00:00
Devang Patel
2983c628cd Avoid recursion in assignDFSNumber(). Move def from ET-Forest.h 
to Dominators.h

llvm-svn: 30309
 2006-09-14 01:27:42 +00:00
Evan Cheng
499d77553a Added support for machine specific constantpool values. These are useful for 
representing expressions that can only be resolved at link time, etc.

llvm-svn: 30278
 2006-09-12 21:00:35 +00:00
Nick Lewycky
a2c3d7b1ca Add ability to remove nodes from DominatorTree, for when a BasicBlock 
is being removed.

llvm-svn: 30270
 2006-09-12 00:18:28 +00:00
Nate Begeman
1109e4a222 Behold, more work on relocations. Things are looking pretty good now. 
llvm-svn: 30240
 2006-09-10 23:03:44 +00:00
Chris Lattner
7005757ced Implement new fpowi node 
llvm-svn: 30223
 2006-09-09 05:55:44 +00:00
Nate Begeman
2dfa13e74f First pass at supporting relocations. Relocations are written correctly to 
the file now, however the relocated address is currently wrong.  Fixing
that will require some deep pondering.

llvm-svn: 30207
 2006-09-08 22:42:09 +00:00
Chris Lattner
98c39f8e5b add powi intrinsics. 
llvm-svn: 30176
 2006-09-08 06:43:00 +00:00
Jim Laskey
160a8aa339 1. Remove condition on delete. 
2. Protect and outline createTargetAsmInfo.

3. Misc. kruft.

llvm-svn: 30169
 2006-09-07 23:39:26 +00:00
Jim Laskey
9da25f6119 Make target asm info a property of the target machine. 
llvm-svn: 30162
 2006-09-07 22:06:40 +00:00
Chris Lattner
47f39eb3db Add new option to leave asm names alone 
llvm-svn: 30149
 2006-09-07 18:20:41 +00:00
Devang Patel
2e6c5085f8 Add getTargetTriple() that linker can use to query target architecture. 
llvm-svn: 30132
 2006-09-06 20:16:28 +00:00
Devang Patel
bb3ca8e494 Keep track of all modules crated using a name to module map. 
Add private member function getMoudle().

llvm-svn: 30130
 2006-09-06 18:50:26 +00:00
Jim Laskey
b3cfa98236 Separate target specifc asm properties from asm printers. 
llvm-svn: 30127
 2006-09-06 18:35:33 +00:00
Jim Laskey
6b86ef852c Separate target specific asm properties from the asm printers. 
llvm-svn: 30126
 2006-09-06 18:34:40 +00:00
Devang Patel
208eaf86a6 Extract target triplet from optimized module. 
Untabify.

llvm-svn: 30123
 2006-09-06 00:28:22 +00:00
Evan Cheng
e7875b655d IsDef can only be accessed / set if operand is a register. 
llvm-svn: 30119
 2006-09-05 20:20:04 +00:00
Evan Cheng
f041d2de7e Initialize IsDef of all non-register MachineOperand to false. 
llvm-svn: 30116
 2006-09-05 18:56:02 +00:00
Chris Lattner
9cd4e3429e Completely eliminate def&use operands. Now a register operand is EITHER a 
def operand or a use operand.

llvm-svn: 30109
 2006-09-05 02:31:13 +00:00
Chris Lattner
40e16d9e51 ADd getImm/setImm methods 
llvm-svn: 30105
 2006-09-04 23:35:22 +00:00
Chris Lattner
35f1acab3a Add some short-hand accessors 
llvm-svn: 30104
 2006-09-04 23:05:29 +00:00
Duraid Madina
51396ffd3e add setJumpBufSize() and setJumpBufAlignment() to target-lowering. 
Call these from your backend to enjoy setjmp/longjmp goodness, see
lib/Target/IA64/IA64ISelLowering.cpp for an example

llvm-svn: 30095
 2006-09-04 06:21:35 +00:00
Chris Lattner
33c9ddc91d Completely rearchitect the interface between targets and the pass manager. 
This pass:

1. Splits TargetMachine into TargetMachine (generic targets, can be implemented
any way, like the CBE) and LLVMTargetMachine (subclass of TM that is used by
things using libcodegen and other support).
2. Instead of having each target fully populate the passmgr for file or JIT
   output, move all this to common code, and give targets hooks they can
   implement.
3. Commonalize the target population stuff between file emission and JIT
   emission.
4. All (native code) codegen stuff now happens in a FunctionPassManager, which
   paves the way for "fast -O0" stuff in the CFE later, and now LLC could
   lazily stream .bc files from disk to use less memory.
5. There are now many fewer #includes and the targets don't depend on the
   scalar xforms or libanalysis anymore (but codegen does).
6. Changing common code generator pass ordering stuff no longer requires
   touching all targets.
7. The JIT now has the option of "-fast" codegen or normal optimized codegen,
   which is now orthogonal to the fact that JIT'ing is being done.

llvm-svn: 30081
 2006-09-04 04:14:57 +00:00
Chris Lattner
50f76d4c5d Add explicit doInitialization/doFinalization methods instead of making 
the FunctionPassManager redo this for each function.

llvm-svn: 30079
 2006-09-04 04:07:39 +00:00
Chris Lattner
2024543fb2 Eliminate target name. 
llvm-svn: 30071
 2006-09-03 18:44:26 +00:00
Chris Lattner
b590a41f7b Avoid beating on the mi2i map when we know the answer already. 
llvm-svn: 30066
 2006-09-03 08:07:11 +00:00
Chris Lattner
cc5b4bff8f Move two methods out of line, make them work when the record for a machine 
instruction includes physregs.

llvm-svn: 30061
 2006-09-03 00:05:09 +00:00
Chris Lattner
518f055373 Fix a typo pointed out by Gabor 
llvm-svn: 30058
 2006-09-02 22:27:29 +00:00
Chris Lattner
c01fbffc67 add a prototype 
llvm-svn: 30051
 2006-09-02 05:37:53 +00:00
Chris Lattner
dfda549a00 Iteration is required for some cases, even if they don't occur in crafty. 
Restore it, which re-fixes X86/2006-08-21-ExtraMovInst.ll

llvm-svn: 30050
 2006-09-02 05:32:53 +00:00
Chris Lattner
9ad19f6f8b new method 
llvm-svn: 30048
 2006-09-02 05:26:01 +00:00
Chris Lattner
89a7eadf22 remove some particularly expensive assertions 
llvm-svn: 30014
 2006-09-01 06:57:35 +00:00
Chris Lattner
7453a7d197 add a simple reserve method. 
llvm-svn: 30011
 2006-09-01 06:08:16 +00:00
Chris Lattner
0c120af606 Iterative coallescing doesn't buy us anything (we get identical results on 
crafty with and without it).  Removing it speeds up live intervals 6%.

llvm-svn: 30010
 2006-09-01 04:02:42 +00:00
Chris Lattner
998dd9b42e avoid calling the virtual isMoveInstr method endlessly by caching its results. 
llvm-svn: 29994
 2006-08-31 05:54:43 +00:00
Chris Lattner
45063c4be4 Restore source-level compatibility with clients of these functions. 
llvm-svn: 29978
 2006-08-30 20:47:48 +00:00
Chris Lattner
c7fb7a05bf fix 80 column issue 
llvm-svn: 29972
 2006-08-30 05:56:52 +00:00
Chris Lattner
e84b1b8352 Instantiate Statistic<> in one place, not in every .o file that uses it. 
llvm-svn: 29971
 2006-08-30 04:17:00 +00:00
Chris Lattner
3a4d512930 Teach the coallescer to coallesce live intervals joined by an arbitrary 
number of copies, potentially defining live ranges that appear to have
differing value numbers that become identical when coallsced.  Among other
things, this fixes CodeGen/X86/shift-coalesce.ll and PR687.

llvm-svn: 29968
 2006-08-29 23:18:15 +00:00
Devang Patel
a5bb9b49d3 Do not rely on std::sort and std::erase to get list of unique 
exit blocks. The output is dependent on addresses of basic block.

Add and use Loop::getUniqueExitBlocks.

llvm-svn: 29966
 2006-08-29 22:29:16 +00:00
Evan Cheng
2335c819cd Move isCommutativeBinOp from SelectionDAG.cpp and DAGCombiner.cpp out. Make it a static method of SelectionDAG. 
llvm-svn: 29951
 2006-08-29 06:42:35 +00:00
Nick Lewycky
9535a84c33 Add PredicateSimplifier pass. Collapses equal variables into one form 
and simplifies expressions. This implements the optimization described
in PR807.

llvm-svn: 29947
 2006-08-28 22:44:55 +00:00
Chris Lattner
4fa85705f6 Add 2nd form of resize 
llvm-svn: 29945
 2006-08-28 21:52:08 +00:00
Chris Lattner
5571652921 remove extraneous space 
llvm-svn: 29940
 2006-08-28 17:30:49 +00:00
Reid Spencer
959705759f Back out last revision which should not have been committed (yet). 
llvm-svn: 29935
 2006-08-28 01:08:45 +00:00
Reid Spencer
2567610703 For PR387: 
Close out this long standing bug by removing the remaining overloaded
virtual functions in LLVM. The -Woverloaded-virtual option is now turned on.

llvm-svn: 29934
 2006-08-28 01:02:49 +00:00
Chris Lattner
8a59e8be23 simplify AnalysisGroup registration, eliminating one typeid call. 
llvm-svn: 29932
 2006-08-28 00:42:29 +00:00
Chris Lattner
6474b3fe80 Silence -Woverloaded-virtual warnings. 
llvm-svn: 29929
 2006-08-28 00:09:00 +00:00
Chris Lattner
a39dcb5377 eliminate RegisterOpt. It does the same thing as RegisterPass. 
llvm-svn: 29925
 2006-08-27 22:42:52 +00:00
Chris Lattner
f530302eda Eliminate RegisterAnalysis. RegisterPass now does all that is necessary. 
llvm-svn: 29921
 2006-08-27 22:30:17 +00:00
Chris Lattner
216059ff5a We no longer care whether something is an opt vs analysis pass, only whether 
something is a pass vs an analysis group now.  Simplify interfaces.

llvm-svn: 29920
 2006-08-27 22:21:55 +00:00
Chris Lattner
dc7bad1787 Remove a dead class. 
llvm-svn: 29918
 2006-08-27 22:11:07 +00:00
Chris Lattner
db0a995bbe add directive to disable inlining 
llvm-svn: 29912
 2006-08-27 13:16:05 +00:00
Chris Lattner
33bd5dcfb7 s|llvm/Support/Visibility.h|llvm/Support/Compiler.h| 
llvm-svn: 29911
 2006-08-27 12:54:02 +00:00
Chris Lattner
91f098c9f7 Add external definitions for commonly-used template specializations and add 
anchor methods to others.  This eliminates the vtable/template method bloat
in .o files that defining a cl::opt used to impose (~4K per .o file for one
cp::opt<unsigned>).

llvm-svn: 29909
 2006-08-27 12:45:47 +00:00
Chris Lattner
a72e220a25 New place to put compiler-specific functionality. This replaces Visibility.h, 
and provides macros that can be used to make explicit instantiations of
template specializations, which is a gcc-specific feature.

llvm-svn: 29908
 2006-08-27 12:42:45 +00:00
Evan Cheng
6e08e7035f Eliminate SelectNodeTo() and getTargetNode() variants which take more than 
3 SDOperand operands. They are replaced by versions which take an array
of SDOperand and the number of operands.

llvm-svn: 29905
 2006-08-27 08:08:54 +00:00
Chris Lattner
5d7bd21c41 make optional pointer really optional 
llvm-svn: 29904
 2006-08-27 07:11:54 +00:00
Nate Begeman
f94ddf0d12 Properly size the string table, and emit symbol table and string table 
entries in the correct order, fixing several fixmes.

llvm-svn: 29902
 2006-08-26 15:46:34 +00:00
Evan Cheng
1c3d571e4b SelectNodeTo now returns a SDNode*. 
llvm-svn: 29901
 2006-08-26 08:00:10 +00:00
Chris Lattner
ec9c7fa089 Completely change the way that joining with physregs is implemented. This 
paves the way for future changes, increases coallescing opportunities (in
theory, not witnessed in practice), and eliminates the really expensive
LiveIntervals::overlapsAliases method.

llvm-svn: 29890
 2006-08-25 23:41:24 +00:00
Jim Laskey
e9b0e1014e Tidy up. 
llvm-svn: 29888
 2006-08-25 22:56:30 +00:00
Reid Spencer
9b5ea0704e For PR797: 
Make the Win32 code exception free (untested/uncompiled) which forced some
interface changes which had ripple effect. This should be the last of 797.

llvm-svn: 29884
 2006-08-25 21:37:17 +00:00
Reid Spencer
e2b7b29a82 For PR797: 
Final commit for this bug. This removes the last EH holdouts in LLVM
and turns off exception support by using the -fno-exceptions option. This
leads to the following reduction in library and executable sizes:
                DEBUG BUILD                RELEASE BUILD
         before     after   delta     before   after    delta
lib    162,328K  157,616K   4,712    17,864K  16,416K  1,448K
bin    571,444K  557,156K  14,288    63,296K   56,996K 6,300K

Debug   Improvement: 19,000K (2.59%)
Release Improvement:  7,748K (9.55%)

llvm-svn: 29882
 2006-08-25 19:54:53 +00:00
Jim Laskey
3af6953257 Consolidate callee saved register information so that it can me used by debug 
information and exception handling.

llvm-svn: 29881
 2006-08-25 19:45:51 +00:00
Reid Spencer
741140980f For PR797: 
Remove exception throwing/handling from lib/Bytecode, and adjust its users
to compensate for changes in the interface.

llvm-svn: 29875
 2006-08-25 17:43:11 +00:00
Nate Begeman
ce8ab85260 Get closer to handling globals correctly. We now generally get them in the 
right section.

llvm-svn: 29871
 2006-08-25 06:36:58 +00:00
Reid Spencer
d813eae003 For PR797: 
Remove exception handling from the bytecode archiver and adjust the llvm-ar
tool to accommodate the new interfaces.

llvm-svn: 29866
 2006-08-24 23:45:08 +00:00
Chris Lattner
28645a15bd Take advantage of the recent improvements to the liveintervals set (tracking 
instructions which define each value#) to simplify and improve the coallescer.
In particular, this patch:

1. Implements iterative coallescing.
2. Reverts an unsafe hack from handlePhysRegDef, superceeding it with a
   better solution.
3. Implements PR865, "coallescing" away the second copy in code like:

   A = B
   ...
   B = A

This also includes changes to symbolically print registers in intervals
when possible.

llvm-svn: 29862
 2006-08-24 22:43:55 +00:00
Reid Spencer
88bbd0bcf8 Remove a FIXME. Don't use strlcpy that isn't available on non-BSD platforms 
and ensure that a memory overrun won't occur while still writing Length
bytes in the outstring function.

llvm-svn: 29855
 2006-08-24 14:25:39 +00:00
Chris Lattner
a6ad752f16 update some comments 
llvm-svn: 29853
 2006-08-24 00:21:32 +00:00
Nate Begeman
0f0148d5f8 Correctly attribute file author & remote tabs 
llvm-svn: 29852
 2006-08-23 21:33:27 +00:00
Nate Begeman
1268d6cd46 Initial checkin of the Mach-O emitter. There's plenty of fixmes, but it 
does emit linkable .o files in very simple cases.

llvm-svn: 29850
 2006-08-23 21:08:52 +00:00
Reid Spencer
71c3f66dc6 For PR797: 
Final removal of exceptions from lib/System and adjustment of users to
accommodate.

llvm-svn: 29846
 2006-08-23 20:34:57 +00:00
Reid Spencer
b702899462 Fix constructor documentation. 
llvm-svn: 29845
 2006-08-23 17:43:20 +00:00
Reid Spencer
bc4c8e8ac0 For PR797: 
Eliminate exception throwing from Path::renamePathOnDisk and adjust its
users correspondingly.

llvm-svn: 29843
 2006-08-23 07:30:48 +00:00
Reid Spencer
0bc83e3c5e For PR797: 
Remove exception throwing from Path::getDirectoryContents and its users.

llvm-svn: 29841
 2006-08-23 06:56:27 +00:00
Reid Spencer
baf54399e7 For PR797: 
Remove exceptions from the Path::create*OnDisk methods. Update their users
to handle error messages via arguments and result codes.

llvm-svn: 29840
 2006-08-23 00:39:35 +00:00
Reid Spencer
45120b0798 For PR797: 
Change the Path::make*OnDisk methods exception free and adjust their usage.

llvm-svn: 29836
 2006-08-22 23:27:23 +00:00
Reid Spencer
353b72a7c0 Make the sys::Path::GetTemporaryDirectory method not throw exceptions and 
adjust users of it to compensate.

llvm-svn: 29831
 2006-08-22 19:01:30 +00:00
Chris Lattner
410c49afd3 Improve the LiveInterval class to keep track of which machine instruction 
defines each value# tracked by the interval.  This will be used to improve
coallescing.

llvm-svn: 29830
 2006-08-22 18:19:46 +00:00
Reid Spencer
4e1170d5d3 Fix some indentation. 
llvm-svn: 29825
 2006-08-22 17:38:05 +00:00
Chris Lattner
a6735ae8d1 add resize, move swap out of line 
llvm-svn: 29823
 2006-08-22 17:28:57 +00:00
Reid Spencer
e9b9e6a6c2 For PR797: 
Adjust users of MappedFile to its new non-throwing interface.  Note that in
most cases the lazy step of just throwing after a call to MappedFile was
installed. This was done in the name of incremental changes. Getting rid of
the new throw statements will take adjustment of interfaces and propagation
of errors to higher levels.  Those changes will come in subsequent patches.

llvm-svn: 29817
 2006-08-22 16:06:27 +00:00
Reid Spencer
9fbfd7c399 For PR797: 
Make MappedFile not throw any exceptions.

llvm-svn: 29816
 2006-08-22 16:04:22 +00:00
Chris Lattner
0a5e21e28d Switch to using smallvector for liveintervals. This speeds up live interval 
analysis 11% on kc++.

llvm-svn: 29812
 2006-08-22 06:32:56 +00:00
Chris Lattner
19d59ce917 add a bunch more operations, including swap, insert, erase, front(), and 
bugfixes for operator=.

llvm-svn: 29811
 2006-08-22 06:27:16 +00:00
Chris Lattner
2e9885371b move LiveInterval state all together 
llvm-svn: 29806
 2006-08-21 23:15:12 +00:00
Jim Laskey
db9724d6e4 Adding new Dwarf constants. 
llvm-svn: 29798
 2006-08-21 21:18:10 +00:00
Reid Spencer
8b5b0a7fb3 For PR797: 
Change interface for error recovery without exceptions.

llvm-svn: 29789
 2006-08-21 06:00:58 +00:00
Reid Spencer
88f6824b35 Fix the documentation for this file. 
llvm-svn: 29788
 2006-08-21 05:37:03 +00:00
Reid Spencer
eb02f1c668 For PR885: 
Consolidate the LinkAllAnalyses.h and LinkAllPasses.h headers into one
so there is no dupliation.

llvm-svn: 29787
 2006-08-21 05:34:03 +00:00
Reid Spencer
5ed787710d For PR797: 
Make sys::Program::ExecuteAndWait not throw exceptions and update any
affected code. It now return -9999 to signal that the program couldn't be
executed. Only one case (in bugpoint) actually examines the result code.

llvm-svn: 29785
 2006-08-21 02:04:43 +00:00
Chris Lattner
1bee472fca vpkuwus didn't work, due to this typo 
llvm-svn: 29776
 2006-08-18 19:25:35 +00:00
Reid Spencer
c7c0e6c6ef For PR797: 
Rid the Assembly Parser of exceptions. This is a really gross hack but it
will do until the Assembly Parser is re-written as a recursive descent.
The basic premise is that wherever the old "ThrowException" function was
called (new name: GenerateError) we set a flag (TriggerError). Every
production checks that flag and calls YYERROR if it is set. Additionally,
each call to ThrowException in the grammar is replaced with GEN_ERROR
which calls GenerateError and then YYERROR immediately. This prevents
the remaining production from continuing after an error condition.

llvm-svn: 29763
 2006-08-18 08:43:06 +00:00
Chris Lattner
db290f7479 Constify some methods. Patch provided by Anton Vayvod, thanks! 
llvm-svn: 29756
 2006-08-17 22:00:08 +00:00
Chris Lattner
a2eba83561 switch the SUnit pred/succ sets from being std::sets to being smallvectors. 
This reduces selectiondag time on kc++ from 5.43s to 4.98s (9%).  More
significantly, this speeds up the default ppc scheduler from ~1571ms to 1063ms,
a 33% speedup.

llvm-svn: 29743
 2006-08-17 00:09:56 +00:00
Chris Lattner
c0e2997872 add an accessor 
llvm-svn: 29739
 2006-08-16 22:57:08 +00:00
Chris Lattner
1e0b221fb2 Convert vector to smallvector: 4% speedup. 
llvm-svn: 29735
 2006-08-16 22:12:48 +00:00
Chris Lattner
402986c13f silence a warning. 
llvm-svn: 29734
 2006-08-16 22:09:24 +00:00
Chris Lattner
c1654416d6 Change the use_list to be a smallvector instead of a vector. This reduces 
isel time from 6.79s to 5.53s (22%) on kc++ with a release build on ppc.
Go smallvector! :)

llvm-svn: 29731
 2006-08-16 21:01:10 +00:00
Chris Lattner
cccfd59edf add a way to have multiple modules in a JIT :) 
llvm-svn: 29723
 2006-08-16 02:53:27 +00:00
Chris Lattner
1eabe5fb58 initial changes to support JIT'ing from multiple module providers, implicitly 
linking the program on the fly.

llvm-svn: 29721
 2006-08-16 01:24:12 +00:00
Chris Lattner
2cd25d1642 Bugfixes for smallvector when the element size is small and N is small. 
llvm-svn: 29720
 2006-08-16 01:23:31 +00:00
Chris Lattner
cb3adb8225 Start using SDVTList more consistently 
llvm-svn: 29711
 2006-08-15 19:11:05 +00:00
Chris Lattner
ff1826e850 add a new SDVTList type and new SelectionDAG::getVTList methods to streamline 
the creation of canonical VTLists.

llvm-svn: 29709
 2006-08-15 17:46:01 +00:00
Chris Lattner
28369b8d7d Make getNodeValueTypes methods public. 
llvm-svn: 29688
 2006-08-14 23:54:24 +00:00
Chris Lattner
8e8d9a3358 Add a new getNode() method that takes a pointer to an already-intern'd list 
of value-type nodes.  This avoids having to do mallocs for std::vectors of
valuetypes when a node returns more than one type.

llvm-svn: 29685
 2006-08-14 23:31:51 +00:00
Devang Patel
91349ea154 Avoid extra string copy. 
llvm-svn: 29684
 2006-08-14 23:27:36 +00:00
Devang Patel
c97ee74e6a Use mangler, instead of addUnderscore(), to get mangled name. 
Now, LLVMSymbol keeps symbol original name and mangled name.

llvm-svn: 29679
 2006-08-14 22:36:16 +00:00
Chris Lattner
9ff7eb17e0 remove SelectionDAG::InsertISelMapEntry, it is dead 
llvm-svn: 29677
 2006-08-14 22:24:39 +00:00
Chris Lattner
fe1fd00ce8 Add code to resize the CSEMap hash table. This doesn't speedup codegen of 
kimwitu, but seems like a good idea from a "avoid performance cliffs" standpoint :)

llvm-svn: 29675
 2006-08-14 22:19:25 +00:00