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551 Commits

Author SHA1 Message Date
Evan Cheng
450fcb1d91 (store (op (load ...)), ...) 
If store's chain operand is load, then use load's chain operand instead. If
it isn't (likely a TokenFactor), then do not allow the folding.

llvm-svn: 25708
 2006-01-27 22:13:45 +00:00
Evan Cheng
77885c204d Subtarget feature can now set any variable to any value 
llvm-svn: 25678
 2006-01-27 08:09:42 +00:00
Chris Lattner
df97630390 Use printInlineAsm to, well, print inline asm's. 
llvm-svn: 25677
 2006-01-27 02:10:50 +00:00
Chris Lattner
cc5d4e56f0 PHI and INLINEASM are now builtin instructions provided by Target.td 
llvm-svn: 25673
 2006-01-27 01:45:06 +00:00
Chris Lattner
c3d295a47c If we want to emit things in enum order, use getInstructionsByEnumValue to 
get the order, don't compute it ourselves.

Don't emit stuff like (14<<0), emit 14 instead.

Don't attempt to get target properties for builtin instructions.

llvm-svn: 25672
 2006-01-27 01:44:09 +00:00
Chris Lattner
a932c5aafb There is at least a 'noitinerary' itinerary now 
llvm-svn: 25671
 2006-01-27 01:41:55 +00:00
Chris Lattner
1ec0a10fed Don't emit JIT code for these instructions 
llvm-svn: 25669
 2006-01-27 01:39:38 +00:00
Chris Lattner
0ee2c3b109 Teach the dag selectors to select InlineAsm nodes. 
Aren't we happy the pattern selectors are almost all gone?

llvm-svn: 25666
 2006-01-26 23:08:55 +00:00
Evan Cheng
8b6fb0763c Another folding problem: if a node r/w chain or flag, don't fold it if it 
has already been selected. The number of use check is not strong enough since
a node can be replaced with newly created target node. e.g. If the original
node has two uses, when it is selected for one of the uses it is replaced with
another. Each node now has a single use but isel still should not fold it.

llvm-svn: 25651
 2006-01-26 19:13:45 +00:00
Evan Cheng
37d647c562 Add a FIXME comment. 
llvm-svn: 25635
 2006-01-26 02:13:31 +00:00
Evan Cheng
849d522805 Incoming (and optional) flag bugs. They may be embedded inside a inner node of 
a pattern. Also, nodes which take incoming flag should not be folded if it has
more than one use.

llvm-svn: 25627
 2006-01-26 00:22:25 +00:00
Evan Cheng
dd2ee4821a Fix an optional in flag bug. 
llvm-svn: 25590
 2006-01-24 20:46:50 +00:00
Evan Cheng
1f68845c8c Optional InFlag was not being included in node. 
llvm-svn: 25588
 2006-01-24 20:07:38 +00:00
Evan Cheng
d3713a9b9a Prevent folding of a node with multiple uses if the node already folds a load! 
Here is an example where the load ended up being done twice:

%A = global uint 0

uint %test(uint %B, ubyte %C) {
	%tmp = load uint *%A;
	%X = shl uint %tmp, ubyte %C
	%Cv = sub ubyte 32, %C
	%Y = shr uint %B, ubyte %Cv
	%Z = or uint %Y, %X
	store uint %Z, uint* %A
	ret uint %Z
}

==>

	subl $4, %esp
	movl %ebx, (%esp)
	movl 8(%esp), %edx
	movl A, %eax
	movb 12(%esp), %bl
	movb %bl, %cl
	shldl %cl, %edx, %eax
	movb %bl, %cl
	shldl %cl, %edx, A
	movl (%esp), %ebx
	addl $4, %esp
	ret

llvm-svn: 25471
 2006-01-20 01:11:03 +00:00
Evan Cheng
4a3ee9d5a6 Bug fix. Flag operand number may be calculated incorrectly. 
llvm-svn: 25465
 2006-01-19 21:57:10 +00:00
Evan Cheng
f168c680e5 Use pattern information to determine whether the use expects this 
instruction to produce a result. e.g MUL8m, the instruction does not
produce a explicit result. However it produces an implicit result in
AL which would be copied to a temp. The root operator of the matching
pattern is a mul so the use would expect it to produce a result.

llvm-svn: 25458
 2006-01-19 10:12:58 +00:00
Evan Cheng
49fa8f2cea Prevent unnecessary CopyToReg when the same HW register appears in two spots 
in the pattern.

llvm-svn: 25437
 2006-01-19 01:55:45 +00:00
Chris Lattner
6efb726290 fix a broken comment 
llvm-svn: 25411
 2006-01-17 21:31:18 +00:00
John Criswell
ab12f83120 Regenerated the Lex and Yacc output files on Linux. It seems that our 
Linux machines don't like the source code generated on MacOS X for some
reason.

llvm-svn: 25394
 2006-01-17 17:01:34 +00:00
Evan Cheng
e840301269 Emit a type matching check for ComplexPatterns. 
llvm-svn: 25392
 2006-01-17 07:36:41 +00:00
Evan Cheng
ddc62a9b61 Type inferencing bug 
llvm-svn: 25337
 2006-01-15 10:04:45 +00:00
Evan Cheng
dc7ec6c63e Allow transformation from GlobalAddress to TargetGlobalAddress and 
ExternalSymbol to TargetExternalSymbol.

llvm-svn: 25252
 2006-01-12 19:35:54 +00:00
Evan Cheng
bbe910088d GlobalAddress -> TargetGlobalAddress; ExternalSymbol -> TargetExternalSymbol 
llvm-svn: 25245
 2006-01-12 07:54:57 +00:00
Evan Cheng
5fa1397b29 Some minor fixes. 
llvm-svn: 25227
 2006-01-11 22:16:13 +00:00
Chris Lattner
4e465047c1 Always select target registers to themselves 
llvm-svn: 25218
 2006-01-11 19:52:27 +00:00
Chris Lattner
0343518492 Emit an error instead of an assertion if trying to do bogus things in result patterns. 
llvm-svn: 25194
 2006-01-11 01:33:49 +00:00
Robert Bocchino
9a57550e4e Added support for the extractelement operation. 
llvm-svn: 25181
 2006-01-10 19:05:34 +00:00
Evan Cheng
7b8f8c317e * Remove instruction fields hasInFlag / hasOutFlag and added SNDPInFlag and 
SNDPOutFlag to DAG nodes. These properties do not belong to target specific
instructions.
* Added DAG node property SNDPOptInFlag. It's same as SNDPInFlag except it's
optional. Used by ret / call, etc.

llvm-svn: 25154
 2006-01-09 18:27:06 +00:00
Evan Cheng
353958d60c Pattern complexity calculation fix. 
llvm-svn: 25133
 2006-01-06 22:19:44 +00:00
Evan Cheng
1d376c6eb2 Tweak pattern complexity calc. 
llvm-svn: 25122
 2006-01-06 02:30:23 +00:00
Evan Cheng
c6ad7a02a8 Bug fix wrt chain operand. 
llvm-svn: 25115
 2006-01-06 00:41:12 +00:00
Jeff Cohen
2230844c7b Replace fix with one less disruptive to the original code. 
Also note that GCC 4.1 also correctly flags the syntax error.

llvm-svn: 25076
 2006-01-04 03:23:30 +00:00
Jeff Cohen
8c5173a440 Tblgen was generating syntactically illegal C++ code like: 
SDOperand Tmp0,Tmp1,Tmp2,Tmp3,;

GCC has a bug (24907) in which is fails to catch this, but VC++ correctly
notes its illegality, so tblgen must be taught to only generate legal C++.

llvm-svn: 25075
 2006-01-04 03:15:19 +00:00
Chris Lattner
5a6761490a Remove obsolete comment, make things look a bit nicer 
llvm-svn: 25070
 2006-01-04 00:32:01 +00:00
Chris Lattner
ae035f3604 reduce stack usage of the recursive SelectCode function by out-lining each 
case of the switch statement into its own method.

llvm-svn: 25069
 2006-01-04 00:25:00 +00:00
Chris Lattner
f6418363ba Remove my previous ugly hack that tries to reduce the stack space usage 
of SelectCode to make way for a better solution.

llvm-svn: 25068
 2006-01-03 22:55:16 +00:00
Duraid Madina
d3cf232a4f HP-UX DVDs are crunchy and good to eat 
llvm-svn: 25052
 2005-12-30 16:41:48 +00:00
Duraid Madina
c4a1bfd13d almost got the HP-UX tester up.. :) 
llvm-svn: 25051
 2005-12-30 14:56:37 +00:00
Nate Begeman
ec7c28a28c Add support for generating v4i32 altivec code 
llvm-svn: 25046
 2005-12-30 00:12:56 +00:00
Duraid Madina
d63b3a13cc This gets most of the backends building with HP HappyC++. 
llvm-svn: 25029
 2005-12-27 10:56:22 +00:00
Evan Cheng
231b11ba87 Added field noResults to Instruction. 
Currently tblgen cannot tell which operands in the operand list are results so
it assumes the first one is a result. This is bad. Ideally we would fix this
by separating results from inputs, e.g. (res R32:$dst),
(ops R32:$src1, R32:$src2). But that's a more distruptive change. Adding
'let noResults = 1' is the workaround to tell tblgen that the instruction does
not produces a result. It works for now since tblgen does not support
instructions which produce multiple results.

llvm-svn: 25017
 2005-12-26 09:11:45 +00:00
Duraid Madina
b8be651393 more standards-compliance stuff 
llvm-svn: 25014
 2005-12-26 05:08:55 +00:00
Andrew Lenharth
b42cc57048 support targetexternalsym 
llvm-svn: 25005
 2005-12-24 23:36:59 +00:00
Evan Cheng
bd79f871a2 * Support for hasInFlag and hasOutFlag (on instructions). Remove nameless FLAG 
support which is fragile.
* Fixed a number of bugs.

llvm-svn: 24996
 2005-12-23 22:11:47 +00:00
Chris Lattner
d752db6276 silence some bogus gcc warnings 
llvm-svn: 24962
 2005-12-22 20:37:36 +00:00
Evan Cheng
b18b8c847f Attempt to fix a crash on WIN32. 
llvm-svn: 24936
 2005-12-22 02:35:21 +00:00
Evan Cheng
578fad3f9d * Added support for FLAG - a special nameless flag register. Can be used as 
either an operand or a result.
* Fixed some more flag / chain bugs.

llvm-svn: 24933
 2005-12-22 02:24:50 +00:00
Evan Cheng
3b09247bb9 Allows instructions which no explicit operands. e.g. X86 RET which has but 
an implicit flag operand.

llvm-svn: 24916
 2005-12-21 20:20:49 +00:00
Chris Lattner
643e6c2b9e Eliminate some GCC warnings from the generated code 
llvm-svn: 24897
 2005-12-21 05:31:05 +00:00
Evan Cheng
4106feae54 Fix the semantic of Requires<[cond]> to mean if (!cond) goto PXXFail; 
llvm-svn: 24883
 2005-12-20 20:08:01 +00:00
Chris Lattner
28cf136707 This ugly patch works around a GCC bug where it is compiling SelectCode to 
use too much stack space, overflowing the stack for large functions.  Instead
of emitting new SDOperands in each match block, we emit some common ones at
the top of SelectCode then reuse them when possible.

This reduces the stack size of SelectCode from 28K to 21K.  Note that GCC
compiles it to 512 bytes :-/

I've filed GCC PR 25505 to track this.

llvm-svn: 24882
 2005-12-20 19:41:03 +00:00
Evan Cheng
98c6b52236 Now support instructions with implicit write to non-flag registers. 
llvm-svn: 24878
 2005-12-20 07:37:41 +00:00
Evan Cheng
63d897b0e2 Lefted out a fix in the previous check in. 
llvm-svn: 24873
 2005-12-20 00:06:17 +00:00
Evan Cheng
e93635d0ac Fix another bug related to chain / flag. 
llvm-svn: 24868
 2005-12-19 22:40:04 +00:00
Evan Cheng
c56f9824db Fixes for a number of bugs: save flag results in CodeGenMap, folded chains 
may not all have ResNo == 0.

llvm-svn: 24858
 2005-12-19 07:18:51 +00:00
Chris Lattner
abadc27396 Handle basic block nodes 
llvm-svn: 24833
 2005-12-18 21:05:44 +00:00
Chris Lattner
5dfbcbb8be More fixes for Selection of copyto/fromreg with a flag 
llvm-svn: 24829
 2005-12-18 15:45:51 +00:00
Chris Lattner
5322894560 Select copytoreg and copyfromreg nodes that have flag operands correctly. 
llvm-svn: 24827
 2005-12-18 15:28:25 +00:00
Evan Cheng
54695fd38d Support for read / write from explicit registers with FlagVT type. 
llvm-svn: 24753
 2005-12-17 01:19:28 +00:00
Evan Cheng
297c23d2e7 Added support to specify predicates. 
llvm-svn: 24715
 2005-12-14 22:02:59 +00:00
Evan Cheng
81f4683257 Skip over srcvalue nodes when generating ISEL code. 
llvm-svn: 24704
 2005-12-14 02:21:57 +00:00
Evan Cheng
518610154b Bug fix: CodeGenMap[N] = ... -> CodeGenMap[N.getValue(0)] = ... 
llvm-svn: 24680
 2005-12-12 23:45:21 +00:00
Evan Cheng
1bc6443c22 At top of generated isel SelectCode() is this: 
if (!N.Val->hasOneUse()) {
    std::map<SDOperand, SDOperand>::iterator CGMI = CodeGenMap.find(N);
    if (CGMI != CodeGenMap.end()) return CGMI->second;
  }

Suppose a DAG like this:

           X
         ^   ^
        /     \
      USE1    USE2

Suppose USE1 is being selected first and during which X is selected and
returned a new node. After this, USE1 is no longer an use of X. During USE2
selection, X will be selected again since it has only one use!

The fix is to always query CodeGenMap.

llvm-svn: 24679
 2005-12-12 23:22:48 +00:00
Evan Cheng
e7f40a3b8b Bug fix: finding the correct incoming chain for pattern with nested src operand. And a minor change to make output code slightly more readible. 
llvm-svn: 24669
 2005-12-12 19:37:43 +00:00
Nate Begeman
a0e26b25f4 Add support for TargetConstantPool nodes to the dag isel emitter, and use 
them in the PPC backend, to simplify some logic out of Select and
SelectAddr.

llvm-svn: 24657
 2005-12-10 02:36:00 +00:00
Evan Cheng
c8ebe5f6eb Stop emitting a redudant type check for complex pattern node. 
llvm-svn: 24655
 2005-12-10 01:57:33 +00:00
Evan Cheng
8300ae66d1 For instructions which produce no result, e.g. store, chain's Resno == 0. 
llvm-svn: 24652
 2005-12-10 00:09:17 +00:00
Chris Lattner
aaec1f6faa Add a new SDTCisPtrTy constraint, which indicates that an operand must have 
the same type as the pointer type for a target.

llvm-svn: 24649
 2005-12-09 22:57:42 +00:00
Evan Cheng
9586e87904 * Do not allow nodes which produce chain results (e.g. loads) to be folded if 
it has more than one real use (non-chain uses).
* Record folded chain producing node in CodeGenMap.
* Do not fold a chain producing node if it has already been selected as an
  operand of a chain use.

llvm-svn: 24647
 2005-12-09 22:45:35 +00:00
Evan Cheng
18134d8c96 Prevent folding of instructions which produce chains that have more than 1 real use 
llvm-svn: 24643
 2005-12-09 06:06:08 +00:00
Evan Cheng
1d7435f478 * Make sure complex pattern operands are selected first since their select 
functions can return false and causing the instruction pattern match to fail.
* Code clean up.

llvm-svn: 24642
 2005-12-09 00:48:42 +00:00
Evan Cheng
ed205f20a5 * Added an explicit type field to ComplexPattern. 
* Renamed MatchingNodes to RootNodes.

llvm-svn: 24636
 2005-12-08 02:14:08 +00:00
Evan Cheng
d11d31e0bd Added support for ComplexPattern. These are patterns that require C++ pattern 
matching code that is not currently auto-generated by tblgen, e.g. X86
addressing mode. Selection routines for complex patterns can return multiple operands, e.g. X86 addressing mode returns 4.

llvm-svn: 24634
 2005-12-08 02:00:36 +00:00
Evan Cheng
3d51fa3305 * Infer instruction property hasCtrlDep from pattern if it has one. 
* Fixed a bug related to hasCtrlDep property use.

llvm-svn: 24610
 2005-12-05 23:08:55 +00:00
Chris Lattner
8ef7c0297c Implement PR673: for explicit register references, use type information 
if available

llvm-svn: 24597
 2005-12-05 02:36:37 +00:00
Chris Lattner
e64b6d64d0 Add some methods 
llvm-svn: 24596
 2005-12-05 02:35:08 +00:00
Chris Lattner
5c7d4632f6 Generate code to silence bogus GCC warnings. 
llvm-svn: 24593
 2005-12-05 00:48:51 +00:00
Evan Cheng
cf4f349880 * Commit the fix (by Chris) for a tblgen type inferencing bug. 
* Enhanced tblgen to handle instructions which have chain operand and writes a
chain result.
* Enhanced tblgen to handle instructions which produces no results. Part of
the change is a temporary hack which relies on instruction property (e.g.
isReturn, isBranch). The proper fix would be to change the .td syntax to
separate results dag from ops dag.

llvm-svn: 24587
 2005-12-04 08:18:16 +00:00
Nate Begeman
811a41a87c Support multiple ValueTypes per RegisterClass, needed for upcoming vector 
work.  This change has no effect on generated code.

llvm-svn: 24563
 2005-12-01 04:51:06 +00:00
Evan Cheng
9c3508e1ab Teach tblgen to accept register source operands in patterns, e.g. 
def SHL8rCL  : I<0xD2, MRM4r, (ops R8 :$dst, R8 :$src),
                 "shl{b} {%cl, $dst|$dst, %CL}",
                 [(set R8:$dst, (shl R8:$src, CL))]>, Imp<[CL],[]>;

This generates a CopyToReg operand and added its 2nd result to the shl as
a flag operand.

llvm-svn: 24557
 2005-12-01 00:18:45 +00:00
Nate Begeman
b79a074c0a Nuke CodeGenInstruction's ValueType member, it is no longer used. 
llvm-svn: 24556
 2005-12-01 00:12:04 +00:00
Nate Begeman
466eaefd38 Stop checking the ValueType of the CodeGenInstruction. Instead, use the 
ValueType from the RegisterClass or Operands.  This step is necessary to
allow RegisterClasses to have multiple ValueTypes.

llvm-svn: 24555
 2005-12-01 00:06:14 +00:00
Nate Begeman
3935bea6c1 fit into 80 columns 
llvm-svn: 24554
 2005-11-30 23:58:18 +00:00
Chris Lattner
7678189bc6 Make the code generated by tblgen return the result of SelectNodeTo, to 
permit future changes.

llvm-svn: 24553
 2005-11-30 23:08:45 +00:00
Nate Begeman
84be54b731 No longer track value types for asm printer operands, and remove them as 
an argument to every operand printing function.  Requires some slight
tweaks to x86, the only user.

llvm-svn: 24541
 2005-11-30 18:54:35 +00:00
Nate Begeman
ed43f5159f Fix some copy and paste typos. 
llvm-svn: 24540
 2005-11-30 18:37:14 +00:00
Evan Cheng
5395a80640 Better error message when unrecognized opcode is seen. 
llvm-svn: 24519
 2005-11-29 18:44:58 +00:00
Nate Begeman
e4d7c1b7dd Add the new vector types to tablegen 
llvm-svn: 24514
 2005-11-29 06:19:38 +00:00
Chris Lattner
3727cc7ac0 Initialize this variable on all paths, fixing a crasher in windows. Thanks 
to JeffC for pointing this out.

llvm-svn: 24426
 2005-11-19 07:48:33 +00:00
Chris Lattner
a36ad00a9a Teach tblgen about instruction operands that have multiple MachineInstr 
operands, digging into them to find register values (used on X86).  Patch
by Evan Cheng!

llvm-svn: 24424
 2005-11-19 07:05:57 +00:00
Chris Lattner
6b83dcf750 Validate that the input to 'Pat' patterns is sane. 
llvm-svn: 24393
 2005-11-17 17:43:52 +00:00
Chris Lattner
464f4402cf teach tblgen to be smart enough to handle tglobaladdr nodes 
llvm-svn: 24391
 2005-11-17 07:39:45 +00:00
Chris Lattner
b545ab1ac1 fix a tblgen bug that Evan ran into, where we would lose the '$src' name 
on patterns like "(set R32:$dst, (i32 imm:$src))"

llvm-svn: 24383
 2005-11-16 23:14:54 +00:00
Jim Laskey
42681c1d58 1. Remove ranges from itinerary data. 
2. Tidy up the subtarget emittined code.

llvm-svn: 24172
 2005-11-03 22:47:41 +00:00
Chris Lattner
5a4c453d60 Reject integer literals that are out of range for their type. 
llvm-svn: 24162
 2005-11-03 05:46:11 +00:00
Chris Lattner
e3897f6c24 Add support for immediates directly in the pattern, this allows itanium to 
define:

def : Pat<(i1 1), (CMPEQ r0, r0)>;

llvm-svn: 24149
 2005-11-02 06:49:14 +00:00
Jim Laskey
4cb1e29b27 Allow itineraries to be passed through the Target Machine. 
llvm-svn: 24139
 2005-11-01 20:06:59 +00:00
Jeff Cohen
1a0261fe4f Keep VC++ happy. 
llvm-svn: 24137
 2005-11-01 18:04:06 +00:00
Jim Laskey
1c66d7fb02 Emit itinerary class in instruction info. 
llvm-svn: 24122
 2005-10-31 17:16:46 +00:00
Jim Laskey
d79749c8a5 Generate cpu to itinerary map. 
llvm-svn: 24121
 2005-10-31 17:16:01 +00:00
Chris Lattner
9fd7ba3c84 Make negative immediates in patterns work correctly, silence some warnings 
building the itanium backend.

llvm-svn: 24095
 2005-10-29 16:39:40 +00:00
Chris Lattner
d44a96088b Switch more code over to using getValueAsListOfDefs. Look at all the -'s. :) 
llvm-svn: 24074
 2005-10-28 22:59:53 +00:00
Chris Lattner
06c5e018ef Rename Record::getValueAsListDef to getValueAsListOfDefs, to more accurately 
reflect what it is.
Convert some more code over to use it.

llvm-svn: 24072
 2005-10-28 22:49:02 +00:00
Chris Lattner
dea00d4a37 Use the new interface Jim added 
llvm-svn: 24071
 2005-10-28 22:43:25 +00:00
Jim Laskey
b86d73937d Removed Mr. Smith from the code. 
llvm-svn: 24070
 2005-10-28 21:47:29 +00:00
Jim Laskey
7bfb35c1ef Added method to return a vector of records for a ListInit of Def field. This 
simplifies using list of records.

llvm-svn: 24069
 2005-10-28 21:46:31 +00:00
Jim Laskey
dba6376b92 Add some commentary. 
llvm-svn: 24055
 2005-10-28 15:20:43 +00:00
Jeff Cohen
744bfe72c0 Keep Visual Studio happy. 
llvm-svn: 24052
 2005-10-28 01:43:09 +00:00
Jim Laskey
1910cbd4dc Now generating instruction itineraries for scheduling. Not my best work, but... 
llvm-svn: 24050
 2005-10-27 19:47:21 +00:00
Jim Laskey
75494b3a8b Simplify. 
llvm-svn: 24015
 2005-10-26 17:49:21 +00:00
Jim Laskey
9ce53d8411 Give full control of subtarget features over to table generated code. 
llvm-svn: 24013
 2005-10-26 17:30:34 +00:00
Chris Lattner
b462de0868 Condcodes are in the ISD namespace 
llvm-svn: 24010
 2005-10-26 17:02:02 +00:00
Chris Lattner
acc8e41a83 Add support for CondCode's 
llvm-svn: 24008
 2005-10-26 16:59:37 +00:00
Chris Lattner
60d02fd01f Emit some boilerplate for targets 
llvm-svn: 23983
 2005-10-25 20:35:14 +00:00
Jim Laskey
bb03da2612 Refactored to make room for more stuff (scheduling info.) 
llvm-svn: 23975
 2005-10-25 15:16:36 +00:00
Chris Lattner
ffa72e8d79 Fix an incompatibility with GCC 4.1, thanks to Vladimir Merzliakov 
for pointing this out!

llvm-svn: 23963
 2005-10-24 15:04:15 +00:00
Chris Lattner
b621e451ba Add the needed #include, emit enums with the sizes of tables, remove 
definitions from the LLVM namespace, since they are all static.

llvm-svn: 23907
 2005-10-23 22:33:08 +00:00
Chris Lattner
fbab2de9dd Remove the obsolete instr selector emitter 
llvm-svn: 23894
 2005-10-23 05:47:52 +00:00
Jim Laskey
f0f90be71c Sort the features and processor lists for the sake of search (and maintainers.) 
llvm-svn: 23879
 2005-10-22 07:59:56 +00:00
Jim Laskey
1fbdee408d Plugin new subtarget backend into the build. 
llvm-svn: 23870
 2005-10-21 19:05:19 +00:00
Jim Laskey
c2e76396fc New TableGen backends for subtarget information. Only command line stuff 
active now.  Scheduling itinerary next.

llvm-svn: 23869
 2005-10-21 19:00:04 +00:00
Chris Lattner
b018f20c7b Make tblgen emit: 
tblgen: In ZAPNOTi: Cannot use 'IZAPX' in an input pattern!
for a bad pattern, instead of an ugly assertion.

llvm-svn: 23854
 2005-10-21 01:19:59 +00:00
Chris Lattner
1bac5bc8a3 add support for literal immediates in patterns to match, allowing us to 
write things like this:

def : Pat<(add GPRC:$in, 12),
          (ADD12 GPRC:$in)>;

Andrew: if this isn't enough or doesn't work for you, please lemme know.
llvm-svn: 23819
 2005-10-19 04:41:05 +00:00
Chris Lattner
1b8609b570 Add basic support for integer constants in pattern results. 
llvm-svn: 23817
 2005-10-19 04:30:56 +00:00
Chris Lattner
cac2ff4864 Fix some checking that was causing duraid to get a perplexing assertion 
instead of a happy error message

llvm-svn: 23816
 2005-10-19 04:12:14 +00:00
Chris Lattner
39538be7a5 Add support for patterns that have physical registers in them. Testcase: 
def : Pat<(trunc G8RC:$in),
          (OR8To4 G8RC:$in, X0)>;

Even though this doesn't make any sense on PPC :)

llvm-svn: 23815
 2005-10-19 02:07:26 +00:00
Chris Lattner
2a81cf4395 Asserting here is to violent 
llvm-svn: 23814
 2005-10-19 01:55:23 +00:00
Chris Lattner
0816495607 Nate wants to define 'Pat's which turn into instructions that don't have 
patterns.  Certainly a logical request.

llvm-svn: 23810
 2005-10-19 01:27:22 +00:00
Chris Lattner
fbf3838a61 Duraid pointed out that it is impolite to emit PPC:: into the IA64 backend 
llvm-svn: 23780
 2005-10-18 04:41:01 +00:00
Chris Lattner
a4dc9eda40 Make the generated code significantly more memory efficient, by using 
SelectNodeTo instead of getTargetNode when possible.

llvm-svn: 23758
 2005-10-16 01:41:58 +00:00
Chris Lattner
5a4ed7e8ab Implement the last major missing piece in the DAG isel generator: when emitting 
a pattern match, make sure to emit the (minimal number of) type checks that
verify the pattern matches this specific instruction.  This allows FMA32
patterns to not match double expressions for example.

llvm-svn: 23748
 2005-10-15 21:34:21 +00:00
Chris Lattner
3aa7a188b9 Now that we have int/fp lattice values, implement the SDTCisOpSmallerThanOp 
type constraint.  This lets tblgen realize that it doesn't need any dynamic
type checks for fextend/fround on PPC (and many other targets), because there
are only two fp types.

llvm-svn: 23730
 2005-10-14 06:25:00 +00:00
Chris Lattner
28621890d9 Fairly serious rework of the typing code to add new int/fp lattice values. 
Overall, no functionality change yet though.

llvm-svn: 23729
 2005-10-14 06:12:03 +00:00
Chris Lattner
c5dbaceaee simplify the code a bit 
llvm-svn: 23728
 2005-10-14 05:08:37 +00:00
Chris Lattner
d83bbd0f14 Add basic support for recognizing a new SDTCisOpSmallerThanOp type constraint 
llvm-svn: 23725
 2005-10-14 04:53:53 +00:00
Chris Lattner
81047cdfc0 Implement a couple of new (important) features. 
1. If an operation has to be int or fp and the target only supports one
   int or fp type, relize that the op has to have that type.
2. If a target has operations on multiple types, do not emit matching code
   for patterns involving those operators, since we do not emit the code to
   check for them yet.  This prevents PPC from generating FP ops currently.

Also move some code around into more logical places.

llvm-svn: 23724
 2005-10-14 04:11:13 +00:00
Chris Lattner
ee8c8e4562 Do not let getLegalValueTypes return a list with duplicates in it 
llvm-svn: 23723
 2005-10-14 03:54:49 +00:00
Chris Lattner
cccadf388c Emit the value type for each register class. 
llvm-svn: 23584
 2005-10-02 06:23:37 +00:00
Chris Lattner
c744d9398f Rename MRegisterDesc -> TargetRegisterDesc for consistency 
llvm-svn: 23564
 2005-09-30 17:49:27 +00:00
Chris Lattner
f29abb6f4a remove some more initializers 
llvm-svn: 23562
 2005-09-30 17:41:05 +00:00
Chris Lattner
6124aae803 trim down the target info structs now that we have a preferred spill register class for each callee save register 
llvm-svn: 23560
 2005-09-30 17:35:22 +00:00
Chris Lattner
2da37b0d74 Compute a preferred spill register class for each callee-save register 
llvm-svn: 23553
 2005-09-30 06:44:45 +00:00
Chris Lattner
7b69bfc7b6 Fix a warning 
llvm-svn: 23550
 2005-09-30 06:09:50 +00:00
Chris Lattner
7e3972b706 Regenerate 
llvm-svn: 23549
 2005-09-30 04:53:25 +00:00
Chris Lattner
2b7ab1f445 Refactor this a bit to move ParsingTemplateArgs to only apply to classes, 
not defs.

Implement support for forward definitions of classes.  This implements
TableGen/ForwardRef.td.

llvm-svn: 23548
 2005-09-30 04:53:04 +00:00
Chris Lattner
c0830ec129 Regenerate 
llvm-svn: 23546
 2005-09-30 04:42:56 +00:00
Chris Lattner
2e4e3a8678 Generate a parse error instead of a checked exception if template args are 
used on a def.

llvm-svn: 23545
 2005-09-30 04:42:31 +00:00
Chris Lattner
3a8b099f34 regenerate 
llvm-svn: 23543
 2005-09-30 04:11:27 +00:00
Chris Lattner
baa6d77025 Refactor the grammar a bit to implement TableGen/ForwardRef.td 
llvm-svn: 23542
 2005-09-30 04:10:49 +00:00
Chris Lattner
7be456ae2f allow regs to be in multiple reg classes 
llvm-svn: 23540
 2005-09-30 01:33:48 +00:00
Chris Lattner
10a8d57590 Teach tablegen to reassociate operators when possible. This allows it to 
find all of teh pattern matches for EQV from one definition

llvm-svn: 23529
 2005-09-29 22:36:54 +00:00
Chris Lattner
31a9d318a3 Teach tblgen to build permutations of instructions, so that the target author 
doesn't have to specify them manually.  It currently handles associativity,
e.g. knowing that (X*Y)+Z  also matches  X+(Y*Z)  and will be extended in
the future.

It is smart enough to not introduce duplicate patterns or patterns that can
never match.

llvm-svn: 23526
 2005-09-29 19:28:10 +00:00
Chris Lattner
86a339dc34 add support for an associative marker 
llvm-svn: 23502
 2005-09-28 20:58:06 +00:00
Chris Lattner
0231f57a46 Emit an error if instructions or patterns are defined but can never match. 
Currently we check that immediate values live on the RHS of commutative
operators.  Defining ORI like this, for example:

def ORI   : DForm_4<24, (ops GPRC:$dst, GPRC:$src1, u16imm:$src2),
                    "ori $dst, $src1, $src2",
                    [(set GPRC:$dst, (or immZExt16:$src2, GPRC:$src1))]>;

results in:

tblgen: In ORI: Instruction can never match: Immediate values must be on the RHS of commutative operators!
llvm-svn: 23501
 2005-09-28 19:27:25 +00:00
Chris Lattner
18ccb532b5 collect commutativity information 
llvm-svn: 23499
 2005-09-28 18:28:29 +00:00
Chris Lattner
5dae8ab260 Prefer cheaper patterns to more expensive ones. Print the costs to the generated 
file

llvm-svn: 23492
 2005-09-28 17:57:56 +00:00
Chris Lattner
eeead91a84 Select Constant nodes to TargetConstant nodes 
llvm-svn: 23488
 2005-09-28 16:58:06 +00:00
Chris Lattner
cdeed56e4e memoize the assert results 
llvm-svn: 23457
 2005-09-26 22:10:24 +00:00
Chris Lattner
5c061685a2 Emit the switch stmt cases in alphabetical order instead of pointer order, 
which is not stable.

llvm-svn: 23456
 2005-09-26 21:59:35 +00:00
Chris Lattner
ad79bd3f47 implement a fixme: only select values once, even if used multiple times. 
llvm-svn: 23454
 2005-09-26 21:53:26 +00:00
Jeff Cohen
a5c4ff5a96 Fix VC++ build errors. 
llvm-svn: 23431
 2005-09-25 19:04:43 +00:00
Chris Lattner
fc89cbf740 memoize translations 
llvm-svn: 23419
 2005-09-24 00:50:51 +00:00
Chris Lattner
9e2188cf4e Teach the DAG isel generator to emit code that creates nodes. 
Fix a few corner cases parsing things like (i32 imm:$foo)

llvm-svn: 23417
 2005-09-24 00:40:24 +00:00
Chris Lattner
7c7fbdc7e1 Emit better code (no more copies for var references), and support DAG patterns 
(e.g. things like rotates).

llvm-svn: 23416
 2005-09-23 23:16:51 +00:00
Chris Lattner
8c19aa13c8 Fix a fixme by passing around SDOperand's instead of SDNode*'s 
llvm-svn: 23415
 2005-09-23 21:53:45 +00:00
Chris Lattner
6c5dfefcb3 Emit code that matches the incoming DAG pattern and checks predicates. 
This does not check that types match yet, but PPC only has one integer type
;-).

This also doesn't have the code to build the resultant dag.

llvm-svn: 23414
 2005-09-23 21:33:23 +00:00
Chris Lattner
9949ef9748 emit information about the order patterns are to be matched. 
llvm-svn: 23413
 2005-09-23 20:52:47 +00:00
Chris Lattner
d9b4002bac start filling in the switch stmt 
llvm-svn: 23412
 2005-09-23 19:36:15 +00:00
Chris Lattner
2e3569b604 Fix a minor bug, add comments 
llvm-svn: 23370
 2005-09-16 00:29:46 +00:00
Chris Lattner
4c1ec1c784 teach the type inference code how to infer types for instructions and node 
xforms.  Run type inference on result patterns, so we always have fully typed
results (and to catch errors in .td files).

llvm-svn: 23369
 2005-09-15 22:23:50 +00:00
Chris Lattner
07b63eafa1 put instructions into a map instead of a vector for quick lookup 
llvm-svn: 23368
 2005-09-15 21:57:35 +00:00
Chris Lattner
335614b54a when parsing instructions remember information about the types taken and 
returned.

llvm-svn: 23367
 2005-09-15 21:51:12 +00:00
Chris Lattner
66c08682d9 Start parsing "Pattern" nodes 
llvm-svn: 23365
 2005-09-15 21:42:00 +00:00
Chris Lattner
fe7a70834b rename a couple of methods, add structure for pattern parsing 
llvm-svn: 23364
 2005-09-15 02:38:02 +00:00
Chris Lattner
ab6886a31d Verify that xform functions only occur in logical places 
llvm-svn: 23363
 2005-09-14 23:05:13 +00:00
Chris Lattner
6f94c802a2 Promote xform fns to be explicit nodes in result patterns, and clean off 
predicates since they will have already matched at this point.

llvm-svn: 23362
 2005-09-14 23:01:59 +00:00
Chris Lattner
57cae81b5e start building the instruction dest pattern correctly. Change the xform 
functions to preserve the Record for the xform instead of making it into a
function name.

llvm-svn: 23361
 2005-09-14 22:55:26 +00:00
Chris Lattner
a6a0d51065 catch unnamed inputs 
llvm-svn: 23360
 2005-09-14 22:06:36 +00:00
Chris Lattner
f749a0ef7c check that there are no unexpected operands 
llvm-svn: 23359
 2005-09-14 21:59:34 +00:00
Chris Lattner
9c196b02fa force all instruction operands to be named. 
llvm-svn: 23358
 2005-09-14 21:13:50 +00:00
Chris Lattner
c19f24f3d7 Check that operands have unique names. REJECT instructions with broken operand 
lists: only don't parse them if they are entirely missing (sparcv9).

llvm-svn: 23355
 2005-09-14 21:05:02 +00:00
Chris Lattner
3cbcb9f5d6 fix a broke range check 
llvm-svn: 23354
 2005-09-14 21:04:12 +00:00
Chris Lattner
a5ba887c02 Parse significantly more of the instruction pattern, now collecting and 
verifying information about the operands.

llvm-svn: 23353
 2005-09-14 20:53:42 +00:00
Chris Lattner
901ddab7b1 Verify that set destinations occur first in the instruction operand list. 
llvm-svn: 23351
 2005-09-14 18:19:25 +00:00
Chris Lattner
76f1dae1af add an accessor 
llvm-svn: 23349
 2005-09-14 18:02:53 +00:00
Chris Lattner
72cfebc71b remove some code that isn't ready for prime time 
llvm-svn: 23346
 2005-09-14 06:03:10 +00:00
Chris Lattner
c4ae94aa32 Switch to a slightly more structured representation for instructions 
llvm-svn: 23345
 2005-09-14 04:03:16 +00:00
Chris Lattner
77cc161bd5 Add some more checking/verification code 
llvm-svn: 23344
 2005-09-14 02:11:12 +00:00
Chris Lattner
9ab561788e start parsing instructions into patterns, start doing many more checks of 
'set's.

llvm-svn: 23343
 2005-09-14 00:09:24 +00:00
Chris Lattner
e2591652a2 don't emit the namespace inside the class! 
llvm-svn: 23341
 2005-09-13 22:05:02 +00:00
Chris Lattner
1da656efd4 Emit code suitable for emission into the ISel class, allowing us to use/define 
methods.

llvm-svn: 23340
 2005-09-13 22:03:37 +00:00
Chris Lattner
9bb7fff501 continue xform function parsing 
llvm-svn: 23338
 2005-09-13 21:59:15 +00:00
Chris Lattner
abc740453c Start parsing node transformation information 
llvm-svn: 23337
 2005-09-13 21:51:00 +00:00
Chris Lattner
0dd99c9aaf Add a new Record::getValueAsCode method to mirror the other getValueAs* 
methods.  Use it to simplify some code.

llvm-svn: 23336
 2005-09-13 21:44:28 +00:00
Chris Lattner
4e59482982 completely eliminate TreePattern::PatternType 
llvm-svn: 23335
 2005-09-13 21:20:49 +00:00
Chris Lattner
773456a944 Regenerate 
llvm-svn: 23311
 2005-09-12 05:30:06 +00:00
Chris Lattner
8b34f3d20d Rearrange two rules, which apparently makes some versions of bison happier. 
llvm-svn: 23310
 2005-09-12 05:29:43 +00:00
Jeff Cohen
7e6b5c60fc Fix miscellaneous Visual Studio build problems. 
llvm-svn: 23307
 2005-09-10 02:00:02 +00:00
Chris Lattner
ada7ac14a1 add an accessor to provide more checking 
llvm-svn: 23289
 2005-09-09 01:15:01 +00:00
Chris Lattner
2490f8f606 use new accessors to simplify code. Add checking to make sure top-level instr 
definitions are void

llvm-svn: 23288
 2005-09-09 01:11:44 +00:00
Chris Lattner
2b656c6102 add some accessors 
llvm-svn: 23287
 2005-09-09 01:11:17 +00:00
Chris Lattner
334e21eb98 Fix incorrect comment 
llvm-svn: 23285
 2005-09-08 23:26:30 +00:00
Chris Lattner
a6d21c974c Implement a complete type inference system for dag patterns, based on the 
constraints defined in the DAG node definitions in the .td files.  This
allows us to infer (and check!) the types for all nodes in the current
ppc .td file.  For example, instead of:

Inst pattern EQV:       (set GPRC:i32:$rT, (xor (xor GPRC:i32:$rA, GPRC:i32:$rB), (imm)<<Predicate_immAllOnes>>))

we now fully infer:

Inst pattern EQV:       (set:void GPRC:i32:$rT, (xor:i32 (xor:i32 GPRC:i32:$rA, GPRC:i32:$rB), (imm:i32)<<Predicate_immAllOnes>>))

from:  (set GPRC:$rT, (not (xor GPRC:$rA, GPRC:$rB)))
llvm-svn: 23284
 2005-09-08 23:22:48 +00:00
Chris Lattner
e2fb8f3a77 Compute the value types that are natively supported by a target. 
llvm-svn: 23282
 2005-09-08 21:43:21 +00:00
Chris Lattner
152a72de2c Parse information about type constraints on SDNodes 
llvm-svn: 23281
 2005-09-08 21:27:15 +00:00
Chris Lattner
ef07fffe37 use node info in the one place we currently use it 
llvm-svn: 23280
 2005-09-08 21:04:46 +00:00
Chris Lattner
d9930002aa start parsing SDNode info records 
llvm-svn: 23279
 2005-09-08 21:03:01 +00:00
Chris Lattner
515c19f56d Fix indentation 
llvm-svn: 23276
 2005-09-08 19:47:28 +00:00
Chris Lattner
b07d2cc2eb regenerate 
llvm-svn: 23275
 2005-09-08 18:48:47 +00:00
Chris Lattner
df9876cdb7 Add support for automatically created anonymous definitions. 
This implements Regression/TableGen/AnonDefinitionOnDemand.td

llvm-svn: 23274
 2005-09-08 18:48:23 +00:00
Chris Lattner
9e7e8d43e8 regenerate 
llvm-svn: 23271
 2005-09-08 18:22:57 +00:00
Chris Lattner
2e3ed074d8 Tabs to spaces. 
llvm-svn: 23270
 2005-09-08 18:22:35 +00:00
Chris Lattner
03637c7200 Keep names even when inlining. This allows us to realize that ADDI is: 
(set GPRC:i32:$rD, (add GPRC:i32:$rA, (imm)<<Predicate_immSExt16>>:$imm))

not:

(set GPRC:i32:$rD, (add GPRC:i32:$rA, (imm)<<Predicate_immSExt16>>))

(we keep the ":$imm")

llvm-svn: 23269
 2005-09-08 17:45:12 +00:00
Chris Lattner
65c98b6441 Initial cut of the dag isel generator. This is still very much a work in 
progress.  It correctly parses instructions and pattern fragments and glues
together pattern fragments into instructions.

The only code it generates currently is some boilerplate code for things
like the EntryNode.

llvm-svn: 23261
 2005-09-07 23:44:43 +00:00
Chris Lattner
b529b1bdbd Rename a class. These files are being migrated to the new isel and I want to 
reuse the names

llvm-svn: 23252
 2005-09-06 22:51:34 +00:00
Chris Lattner
f12074e8f6 regenerate 
llvm-svn: 23249
 2005-09-06 21:23:27 +00:00
Chris Lattner
5cd3a27513 Tighten up the specification to allow TableGen/nested-comment.td to pass 
(fixing a bug where / in a /* */ comment would cause it to not close).

llvm-svn: 23248
 2005-09-06 21:23:09 +00:00
Chris Lattner
12c57505bf Add an option and stuff implementation of a dag isel emitter 
llvm-svn: 23236
 2005-09-03 01:14:03 +00:00
Reid Spencer
46a7fdeb66 Implement PR614: 
These changes modify the makefiles so that the output of flex and bison are
placed in the SRC directory, not the OBJ directory. It is intended that they
be checked in as any other LLVM source so that platforms without convenient
access to flex/bison can be compiled. From now on, if you change a .y or
.l file you *must* also commit the generated .cpp and .h files.

llvm-svn: 23115
 2005-08-27 18:50:39 +00:00
Chris Lattner
497c012e54 spell this right 
llvm-svn: 23099
 2005-08-26 20:55:40 +00:00
Chris Lattner
6c4ea26961 spell this variable right 
llvm-svn: 23095
 2005-08-26 20:42:52 +00:00
Chris Lattner
b474a0ab06 Expose a new flag to TargetInstrInfo 
llvm-svn: 23094
 2005-08-26 20:40:46 +00:00
Chris Lattner
17f0f9beae add a marker at the end of the instruction enum list 
llvm-svn: 23090
 2005-08-26 20:17:00 +00:00
Chris Lattner
9ceee53f9a Emit this: 
static const TargetOperandInfo OperandInfo6[] = { { &PPC32::CRRCRegClass }, { 0 }, };

instead of this:

static const TargetOperandInfo OperandInfo6[] = { { PPC32::CRRCRegisterClass }, { 0 }, };

For operand information, which does not require dynamic (startup-time)
initialization.

llvm-svn: 22931
 2005-08-19 20:29:14 +00:00
Chris Lattner
916e016ac1 Expose the derived register classes to the public header, allowing them 
to be accessed.

llvm-svn: 22930
 2005-08-19 20:23:42 +00:00
Chris Lattner
20c1c4cf07 Split register class "Methods" into MethodProtos and MethodBodies 
llvm-svn: 22928
 2005-08-19 19:12:51 +00:00
Chris Lattner
cef54bfd28 Refactor to use Target.getRegisterClasses consistently, which provides 
anonymous regclass definition renaming.

Change the generated code to emit register classes as properly namespace
qualified entities like everything else.

expose the actual class definition as an object, though this isn't quite
usable yet.

llvm-svn: 22920
 2005-08-19 18:47:59 +00:00
Chris Lattner
077a4e87c4 Emit real operand info for instructions. This currently works but is bad 
in one way: the generated tables require dynamic initialization for the
register classes.  This will be fixed in a future patch.

llvm-svn: 22919
 2005-08-19 18:46:26 +00:00
Chris Lattner
341308dc6b Read the namespace field from register classes 
llvm-svn: 22918
 2005-08-19 18:45:20 +00:00
Chris Lattner
bf7633b73b add a setName method to record 
llvm-svn: 22912
 2005-08-19 17:58:49 +00:00
Chris Lattner
1344e9cf9c Add a setName method to Record. 
llvm-svn: 22911
 2005-08-19 17:58:11 +00:00
Chris Lattner
36f99a1374 For now, just emit empty operand info structures. 
llvm-svn: 22910
 2005-08-19 16:57:28 +00:00
Chris Lattner
5ac318c67b Fix a problem jeffc noticed 
llvm-svn: 22903
 2005-08-19 06:16:04 +00:00
Chris Lattner
1685432a06 The code emitter generator only supports targets with 32-bit instruction 
words.  There is no way for one of these targets to have a > 32-bit immediate!

llvm-svn: 22897
 2005-08-19 01:04:33 +00:00
Chris Lattner
7ab998463c now that all of the targets are clean w.r.t. the number of operands for each 
instruction defined, actually emit this to the InstrInfoDescriptor, which
allows an assert in the machineinstrbuilder to do some checking for us,
and is required by the dag->dag emitter

llvm-svn: 22895
 2005-08-19 00:59:49 +00:00
Chris Lattner
d03fa09ce7 Figure out how many operands each instruction has, keep track of whether 
or not it's variable.

llvm-svn: 22885
 2005-08-18 23:38:41 +00:00
Chris Lattner
1f718aa8b5 revert this change, which causes breakage, temporarily 
llvm-svn: 22880
 2005-08-18 22:12:31 +00:00
Chris Lattner
b312f4d374 When emitting implicit use/def lists, only emit each unique list once. Though 
LLVM is able to merge identical static const globals, GCC isn't, and this caused
some bloat in the generated data.  This has a marginal effect on PPC, shrinking
the implicit sets from 10->4, but shrinks X86 from 179 to 23, a much bigger
reduction.

This should speed up the register allocator as well by reducing the dcache
footprint for this static data.

llvm-svn: 22879
 2005-08-18 21:36:47 +00:00
Chris Lattner
d3814ff064 Fill in the numOperands field of the TargetInstrDescriptor struct from the 
.td file.

llvm-svn: 22873
 2005-08-18 19:45:37 +00:00
Jeff Cohen
bd51ec7461 Eliminate all remaining tabs and trailing spaces. 
llvm-svn: 22523
 2005-07-27 06:12:32 +00:00
Chris Lattner
bee317e9b0 Fix PR595: These error messages should not be looking at CGI.Name, they 
should be looking at CGI.TheDef->getName().

llvm-svn: 22445
 2005-07-15 22:43:04 +00:00
Nate Begeman
c871411c9d Add support for a TODO; instructions in .td files can now have arguments 
printed as part of the opcode.  This allows something like
cmp${cc}ss in the x86 backed to be printed as cmpltss, cmpless, etc.
depending on what the value of $cc is.

llvm-svn: 22439
 2005-07-14 22:50:30 +00:00
Jeff Cohen
4d31aeb9df Eliminate tabs and trailing spaces 
llvm-svn: 21441
 2005-04-22 04:13:13 +00:00
Misha Brukman
960a8d47d7 Remove trailing whitespace 
llvm-svn: 21428
 2005-04-22 00:00:37 +00:00
Chris Lattner
070188a856 ignore generated files 
llvm-svn: 21362
 2005-04-19 15:34:36 +00:00
Chris Lattner
0c97ef0c04 fix bogus warning 
llvm-svn: 21361
 2005-04-19 15:32:30 +00:00
Chris Lattner
c2f7fcfbba Major change to tblgen: instead of resolving values every time a class is 
finished up, only resolve fully when the def is defined.  This allows things
to be changed and all uses to be propagated through.  This implements
TableGen/LazyChange.td and fixes TemplateArgRename.td in the process.

None of the .td files used in LLVM backends are changed at all by this
patch.

llvm-svn: 21344
 2005-04-19 03:36:21 +00:00
Chris Lattner
57b0bbfcbd implementing shifting of literal integers 
llvm-svn: 21336
 2005-04-19 01:17:35 +00:00
Chris Lattner
414d27b765 Add initial lexer and parser support for shifting values. Every use of this 
will lead to it being rejected though.

llvm-svn: 21335
 2005-04-19 01:11:03 +00:00
Chris Lattner
fb921a5722 Minor fix. 
llvm-svn: 19761
 2005-01-22 20:59:38 +00:00