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607 Commits

Author SHA1 Message Date
Chris Lattner
697e830c63 Autogenerate code to map from GCC builtin to LLVM intrinsic. 
llvm-svn: 26770
 2006-03-15 01:33:26 +00:00
Reid Spencer
13a38e914a Add a newline at the end to avoid gcc warnings. 
llvm-svn: 26749
 2006-03-14 05:59:52 +00:00
Chris Lattner
ecc2db9f6d emit a mapping from LLVM intrinsic -> GCC builtins. 
llvm-svn: 26736
 2006-03-13 23:08:44 +00:00
Chris Lattner
5efaeff492 Verify that packed type operands have the right size and base type. 
llvm-svn: 26735
 2006-03-13 22:38:57 +00:00
Chris Lattner
8930c740ac fix pasto in generate assertion msg 
llvm-svn: 26706
 2006-03-11 00:20:47 +00:00
Chris Lattner
fa0acde009 generate side-effect info 
llvm-svn: 26672
 2006-03-09 22:37:52 +00:00
Chris Lattner
67900dea61 Parse mod/ref properties, autogen mod/ref information 
llvm-svn: 26669
 2006-03-09 22:30:49 +00:00
Chris Lattner
35d32c232a parse intrinsic types 
autogenerate an intrinsic verifier

llvm-svn: 26666
 2006-03-09 22:05:04 +00:00
Chris Lattner
f4bb4b3b11 autogenerate the function name recognizer 
llvm-svn: 26663
 2006-03-09 20:34:19 +00:00
Evan Cheng
df3c89dd52 Temporary hack to enable more (store (op (load ...))) folding. This makes 
it possible when a TokenFactor is between the load and store. But is still
missing some cases due to ordering issue.

llvm-svn: 26638
 2006-03-09 08:19:11 +00:00
Evan Cheng
71c62ae1f4 Don't generate silly matching code like this: 
if (N1.getOpcode() == ISD::ADD &&
     ...)
   if (... &&
       (N1.getNumOperands() == 1 || !isNonImmUse(N1.Val, N10.Val))) &&
       ...)

TableGen knows N1 must have more than one operand.

llvm-svn: 26592
 2006-03-07 08:31:27 +00:00
Chris Lattner
a31ef8a613 Silence a warning. 
llvm-svn: 26508
 2006-03-03 19:34:28 +00:00
Chris Lattner
d2068344fc Fix pasteo 
llvm-svn: 26499
 2006-03-03 06:13:41 +00:00
Chris Lattner
c8db4dd179 remove a bunch of long-dead testing code 
llvm-svn: 26497
 2006-03-03 02:34:28 +00:00
Chris Lattner
0b3c1c1fe2 initial implementation of intrinsic parsing 
llvm-svn: 26495
 2006-03-03 02:32:46 +00:00
Chris Lattner
b878804a5f remove out of date comment 
llvm-svn: 26492
 2006-03-03 02:04:07 +00:00
Chris Lattner
29d28e02b0 Add support for "-Ifoo" in addition to "-I foo" 
llvm-svn: 26487
 2006-03-03 01:53:40 +00:00
Chris Lattner
90eecf3882 Regenerate 
llvm-svn: 26486
 2006-03-03 01:47:37 +00:00
Chris Lattner
10c2fb116d add support for multiple include directories 
llvm-svn: 26485
 2006-03-03 01:47:14 +00:00
Evan Cheng
9539ab3ecc New vector type v2f32. 
llvm-svn: 26437
 2006-03-01 01:10:52 +00:00
Chris Lattner
1ffa8d3666 Select inline asm memory operands. 
llvm-svn: 26349
 2006-02-24 02:13:31 +00:00
Evan Cheng
6a9422ce1c Added x86 integer vector types: 64-bit packed byte integer (v16i8), 64-bit 
packed word integer (v8i16), and 64-bit packed doubleword integer (v2i32).

llvm-svn: 26294
 2006-02-20 22:34:53 +00:00
Jeff Cohen
6e4fbcce8f Fix bugs identified by VC++. 
llvm-svn: 26287
 2006-02-18 03:20:33 +00:00
Evan Cheng
110f651cba Bump up pattern cost if the resulting instruction is marked 
usesCustomDAGSchedInserter.

llvm-svn: 26282
 2006-02-18 02:33:09 +00:00
Chris Lattner
0974ebab7b Check the new form for bison output into CVS 
llvm-svn: 26208
 2006-02-15 07:24:01 +00:00
Chris Lattner
be28034223 Adjust to new form of handling lexer dependencies, this way shouldn't have 
the problems the old way did.

llvm-svn: 26161
 2006-02-14 05:13:13 +00:00
Evan Cheng
e8a0e56482 Call InsertISelMapEntry rather than map insertion operator to prevent overly 
aggrssive inlining. This reduces Select_store frame size from 24k to 10k.

llvm-svn: 26095
 2006-02-09 22:12:27 +00:00
Evan Cheng
fd9315eaaa Match getTargetNode() changes (now returns SDNode* instead of SDOperand). 
llvm-svn: 26084
 2006-02-09 07:16:09 +00:00
Evan Cheng
521e5a1bfe Change Select() from 
SDOperand Select(SDOperand N);
to
void Select(SDOperand &Result, SDOperand N);

llvm-svn: 26067
 2006-02-09 00:37:58 +00:00
Evan Cheng
0ff5d88abd Hoist all SDOperand declarations within a Select_{opcode}() to the top level 
to reduce stack memory usage. This is intended to work around the gcc bug.

llvm-svn: 26026
 2006-02-07 00:37:41 +00:00
Chris Lattner
cf81cdcf95 Add support for modifier strings in machine instr descriptions. This allows 
us to avoid creating lots of "Operand" types with different printers, instead
we can fold several together and use modifiers.  For example, we can now use:

${target:call} to say that the operand should be printed like a 'call' operand.

llvm-svn: 26024
 2006-02-06 23:40:48 +00:00
Chris Lattner
232dd5c069 Simplify the variant handling code, no functionality change. 
llvm-svn: 26023
 2006-02-06 22:43:28 +00:00
Evan Cheng
2af9230f1e At the end of isel, select a replacement node for each handle that does not 
have one. This can happen if a load's real uses are dead (i.e. they do not
have uses themselves).

llvm-svn: 26014
 2006-02-06 08:12:55 +00:00
Evan Cheng
6f1778d4e1 Name change. 
llvm-svn: 26013
 2006-02-06 06:03:35 +00:00
Evan Cheng
09b5e544a9 Handle HANDLENODE: just return itself. 
llvm-svn: 26011
 2006-02-05 08:46:14 +00:00
Evan Cheng
0b5d4a10a9 Allow more loads to be folded which were previously prevented from happening 
due to ordering issue. i.e. they were selected for chain use first.
Now at load select time, check if it is being selected for a chain use and if
it has only a single real use. If so, return a HANDLENODE (with the load as
its operand) in its place and record it.
When it is folded or the load is selected for a real use, the isel records it
as the replacement for the HANDLENODE. The replacement is done when all nodes
are selected.
This scheme exposed a couple of problems where cycles can happen. (See comments
in EmitMatchCode() for descriptions of the problems and their workaround /
solutions.) These problems have been resolved with a small compile time
penality.

llvm-svn: 25995
 2006-02-05 06:43:12 +00:00
Evan Cheng
d5d3d7ad9e Re-committing the last bit of change. It shouldn't break PPC this time. 
llvm-svn: 25982
 2006-02-05 05:22:18 +00:00
Chris Lattner
951217976d Temporarily revert the last change, which breaks PPC and other targets that 
DO select things.

llvm-svn: 25970
 2006-02-04 09:23:06 +00:00
Evan Cheng
6a366c5eda Complex pattern's custom matcher should not call Select() on any operands. 
Select them afterwards if it returns true.

llvm-svn: 25968
 2006-02-04 08:50:49 +00:00
Chris Lattner
21f305febf node predicates add to the complexity of a pattern. This ensures that the 
X86 backend attempts to match small-immediate versions of instructions before
the full size immediate versions.

llvm-svn: 25937
 2006-02-03 18:06:02 +00:00
Evan Cheng
7c8bab62e5 (store (op (load ...))) folding problem. In the generated matching code, 
Chain is initially set to the chain operand of store node, when it reaches
load, if it matches the load then Chain is set to the chain operand of the
load.

However, if the matching code that follows this fails, isel moves on to the
next pattern but it does not restore Chain to the chain operand of the store.
So when it tries to match the next store / op / load pattern it would fail on
the Chain == load.getOperand(0) test.

The solution is for each chain operand to get a unique name. e.g. Chain10.

llvm-svn: 25931
 2006-02-03 06:22:41 +00:00
Chris Lattner
c9a001a67d add a note, ya knoe 
llvm-svn: 25880
 2006-02-01 19:12:23 +00:00
Evan Cheng
efdfb534a7 If a pattern's root node is a constant, its size should be 3 rather than 2. 
llvm-svn: 25870
 2006-02-01 06:06:31 +00:00
Chris Lattner
8d9da62be7 implement test/Regression/TableGen/DagIntSubst.ll 
llvm-svn: 25836
 2006-01-31 06:02:35 +00:00
Chris Lattner
b7616b85bc simplify some code 
llvm-svn: 25791
 2006-01-29 20:01:35 +00:00
Andrew Lenharth
1ba3cfd622 it is nice not to chop off bits for those blessed with lots of bits 
llvm-svn: 25766
 2006-01-29 05:22:37 +00:00
Andrew Lenharth
fde505e9f5 make the casts actually cast to the variable type 
llvm-svn: 25765
 2006-01-29 05:17:22 +00:00
Andrew Lenharth
896015b24f start of the 64bit safety cleanup 
llvm-svn: 25764
 2006-01-29 05:07:04 +00:00
Chris Lattner
024ea8e7ca Emit series of conditionals with &&, emitting stuff like this: 
if (N1.getOpcode() == ISD::LOAD &&
        N1.hasOneUse() &&
        !CodeGenMap.count(N1.getValue(0)) &&
        !CodeGenMap.count(N1.getValue(1))) {

instead of this:

    if (N1.getOpcode() == ISD::LOAD) {
      if (N1.hasOneUse()) {
        if (!CodeGenMap.count(N1.getValue(0))) {
          if (!CodeGenMap.count(N1.getValue(1))) {

llvm-svn: 25763
 2006-01-29 04:41:05 +00:00
Chris Lattner
8624868903 Factor matching code that is common between patterns. This works around 
GCC not jump-threading across this common code, and produces far nicer
output.

llvm-svn: 25762
 2006-01-29 04:25:26 +00:00
Chris Lattner
f94049edf9 Split out code generation from analysis from emission 
llvm-svn: 25759
 2006-01-29 02:57:39 +00:00
Chris Lattner
6be3b584f4 move some code around, no change in the generated code 
llvm-svn: 25758
 2006-01-29 02:43:35 +00:00
Chris Lattner
3cdfba635c now that we have control over emission of the code, emit the code using nested 
"if" statements (indenting it appropriately, of course) instead of using goto's.

This inverts the logic for all of the if statements, which makes things simpler
to understand in addition to making the generated code easier to read.

llvm-svn: 25757
 2006-01-28 20:43:52 +00:00
Chris Lattner
b6fc7b5e71 Change PatternCodeEmitter to emit code into a buffer instead of emitting it 
directly to the output file.  This makes things simple because the code doesn't
have to worry about indentation or the case when there is no goto.  It also
allows us to indent the code better without touching everything :)

llvm-svn: 25756
 2006-01-28 20:31:24 +00:00
Chris Lattner
d9026d62f8 Fit to 80 columns, no functionality change 
llvm-svn: 25752
 2006-01-28 19:06:51 +00:00
Jeff Cohen
96bb922537 Teach tablegen to generate code that is VC++ warning-free. 
llvm-svn: 25709
 2006-01-27 22:22:28 +00:00
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