0fe76d1585
* Infer instruction property hasCtrlDep from pattern if it has one.
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* Fixed a bug related to hasCtrlDep property use.
llvm-svn: 24610
2005-12-05 23:08:55 +00:00
ba369ae8f1
Implement PR673: for explicit register references, use type information
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if available
llvm-svn: 24597
2005-12-05 02:36:37 +00:00
d49489f01e
Generate code to silence bogus GCC warnings.
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llvm-svn: 24593
2005-12-05 00:48:51 +00:00
f02bb9af8b
* Commit the fix (by Chris) for a tblgen type inferencing bug.
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* 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
006bb04f3a
Support multiple ValueTypes per RegisterClass, needed for upcoming vector
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work. This change has no effect on generated code.
llvm-svn: 24563
2005-12-01 04:51:06 +00:00
fed83adbe3
Teach tblgen to accept register source operands in patterns, e.g.
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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
cdf2c67888
Stop checking the ValueType of the CodeGenInstruction. Instead, use the
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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
3e63dc00da
Make the code generated by tblgen return the result of SelectNodeTo, to
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permit future changes.
llvm-svn: 24553
2005-11-30 23:08:45 +00:00
c8af0cb893
Better error message when unrecognized opcode is seen.
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llvm-svn: 24519
2005-11-29 18:44:58 +00:00
a70c7dff2e
Validate that the input to 'Pat' patterns is sane.
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llvm-svn: 24393
2005-11-17 17:43:52 +00:00
2a230e1c1a
teach tblgen to be smart enough to handle tglobaladdr nodes
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llvm-svn: 24391
2005-11-17 07:39:45 +00:00
b22950df6c
fix a tblgen bug that Evan ran into, where we would lose the '$src' name
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on patterns like "(set R32:$dst, (i32 imm:$src))"
llvm-svn: 24383
2005-11-16 23:14:54 +00:00
64209fd14b
Reject integer literals that are out of range for their type.
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llvm-svn: 24162
2005-11-03 05:46:11 +00:00
590176be16
Add support for immediates directly in the pattern, this allows itanium to
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define:
def : Pat<(i1 1), (CMPEQ r0, r0)>;
llvm-svn: 24149
2005-11-02 06:49:14 +00:00
d91df9d941
Make negative immediates in patterns work correctly, silence some warnings
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building the itanium backend.
llvm-svn: 24095
2005-10-29 16:39:40 +00:00
7ad0bed89f
Rename Record::getValueAsListDef to getValueAsListOfDefs, to more accurately
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reflect what it is.
Convert some more code over to use it.
llvm-svn: 24072
2005-10-28 22:49:02 +00:00
802bd8d94f
Use the new interface Jim added
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llvm-svn: 24071
2005-10-28 22:43:25 +00:00
f277ac7caa
Condcodes are in the ISD namespace
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llvm-svn: 24010
2005-10-26 17:02:02 +00:00
611b0c634c
Add support for CondCode's
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llvm-svn: 24008
2005-10-26 16:59:37 +00:00
d980c46f52
Emit some boilerplate for targets
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llvm-svn: 23983
2005-10-25 20:35:14 +00:00
8bda5afd91
Make tblgen emit:
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tblgen: In ZAPNOTi: Cannot use 'IZAPX' in an input pattern!
for a bad pattern, instead of an ugly assertion.
llvm-svn: 23854
2005-10-21 01:19:59 +00:00
c9ad735e78
add support for literal immediates in patterns to match, allowing us to
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write things like this:
def : Pat<(add GPRC:$in, 12),
(ADD12 GPRC:$in)>;
Andrew: if this isn't enough or doesn't work for you, please lemme know.
llvm-svn: 23819
2005-10-19 04:41:05 +00:00
7f6f565846
Add basic support for integer constants in pattern results.
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llvm-svn: 23817
2005-10-19 04:30:56 +00:00
b8014e10ae
Add support for patterns that have physical registers in them. Testcase:
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def : Pat<(trunc G8RC:$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
c8f899f98d
Asserting here is to violent
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llvm-svn: 23814
2005-10-19 01:55:23 +00:00
8baf5043a8
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
ed653cbe43
Duraid pointed out that it is impolite to emit PPC:: into the IA64 backend
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llvm-svn: 23780
2005-10-18 04:41:01 +00:00
825298b060
Make the generated code significantly more memory efficient, by using
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SelectNodeTo instead of getTargetNode when possible.
llvm-svn: 23758
2005-10-16 01:41:58 +00:00
6b22d2554a
Implement the last major missing piece in the DAG isel generator: when emitting
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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
c4db8f4163
Now that we have int/fp lattice values, implement the SDTCisOpSmallerThanOp
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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
ecaf56b21a
Fairly serious rework of the typing code to add new int/fp lattice values.
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Overall, no functionality change yet though.
llvm-svn: 23729
2005-10-14 06:12:03 +00:00
cdf483556f
simplify the code a bit
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llvm-svn: 23728
2005-10-14 05:08:37 +00:00
4892df38f3
Add basic support for recognizing a new SDTCisOpSmallerThanOp type constraint
...
llvm-svn: 23725
2005-10-14 04:53:53 +00:00
7b0275ba8c
Implement a couple of new (important) features.
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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
366fe04301
Teach tablegen to reassociate operators when possible. This allows it to
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find all of teh pattern matches for EQV from one definition
llvm-svn: 23529
2005-09-29 22:36:54 +00:00
e86824e57a
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
492e70f4ec
add support for an associative marker
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llvm-svn: 23502
2005-09-28 20:58:06 +00:00
8bb25cd68a
Emit an error if instructions or patterns are defined but can never match.
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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
f74c30c281
collect commutativity information
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llvm-svn: 23499
2005-09-28 18:28:29 +00:00
3622f15491
Prefer cheaper patterns to more expensive ones. Print the costs to the generated
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file
llvm-svn: 23492
2005-09-28 17:57:56 +00:00
75b4c5d868
Select Constant nodes to TargetConstant nodes
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llvm-svn: 23488
2005-09-28 16:58:06 +00:00
d455c36c91
memoize the assert results
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llvm-svn: 23457
2005-09-26 22:10:24 +00:00
c9153266c6
Emit the switch stmt cases in alphabetical order instead of pointer order,
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which is not stable.
llvm-svn: 23456
2005-09-26 21:59:35 +00:00
d5de8544f8
implement a fixme: only select values once, even if used multiple times.
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llvm-svn: 23454
2005-09-26 21:53:26 +00:00
23b1d28e69
Fix VC++ build errors.
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llvm-svn: 23431
2005-09-25 19:04:43 +00:00
cc1d38160d
memoize translations
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llvm-svn: 23419
2005-09-24 00:50:51 +00:00
0afb14cade
Teach the DAG isel generator to emit code that creates nodes.
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Fix a few corner cases parsing things like (i32 imm:$foo)
llvm-svn: 23417
2005-09-24 00:40:24 +00:00
cd093e868e
Emit better code (no more copies for var references), and support DAG patterns
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(e.g. things like rotates).
llvm-svn: 23416
2005-09-23 23:16:51 +00:00
8ffb99b4fe
Fix a fixme by passing around SDOperand's instead of SDNode*'s
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llvm-svn: 23415
2005-09-23 21:53:45 +00:00
cc8a564cb1
Emit code that matches the incoming DAG pattern and checks predicates.
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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
Evan Cheng