Commit Graph

84 Commits

Author SHA1 Message Date
Chris Lattner
2ac8510d68 Fix some checking that was causing duraid to get a perplexing assertion
instead of a happy error message


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23816 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-19 04:12:14 +00:00
Chris Lattner
5024d93c8b Make the generated code significantly more memory efficient, by using
SelectNodeTo instead of getTargetNode when possible.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23758 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-16 01:41:58 +00:00
Chris Lattner
3c7e18d690 Fairly serious rework of the typing code to add new int/fp lattice values.
Overall, no functionality change yet though.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23729 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-14 06:12:03 +00:00
Chris Lattner
03ebd802c7 Add basic support for recognizing a new SDTCisOpSmallerThanOp type constraint
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23725 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-14 04:53:53 +00:00
Chris Lattner
0ee7cff4fb 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23724 91177308-0d34-0410-b5e6-96231b3b80d8
2005-10-14 04:11:13 +00:00
Chris Lattner
e46e17b7fb 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23526 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-29 19:28:10 +00:00
Chris Lattner
7cf2fe6c48 add support for an associative marker
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23502 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-28 20:58:06 +00:00
Chris Lattner
e97603f1bd 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!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23501 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-28 19:27:25 +00:00
Chris Lattner
a1a68ae061 collect commutativity information
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23499 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-28 18:28:29 +00:00
Chris Lattner
72fe91c4dd Teach the DAG isel generator to emit code that creates nodes.
Fix a few corner cases parsing things like (i32 imm:$foo)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23417 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-24 00:40:24 +00:00
Chris Lattner
8fc3568d98 Emit better code (no more copies for var references), and support DAG patterns
(e.g. things like rotates).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23416 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-23 23:16:51 +00:00
Chris Lattner
d1ff35a49d 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23414 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-23 21:33:23 +00:00
Chris Lattner
3f7e91477e emit information about the order patterns are to be matched.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23413 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-23 20:52:47 +00:00
Chris Lattner
813033248c start filling in the switch stmt
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23412 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-23 19:36:15 +00:00
Chris Lattner
a28aec1da7 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).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23369 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-15 22:23:50 +00:00
Chris Lattner
ae5b350b3b put instructions into a map instead of a vector for quick lookup
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23368 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-15 21:57:35 +00:00
Chris Lattner
ae6d828de8 when parsing instructions remember information about the types taken and
returned.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23367 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-15 21:51:12 +00:00
Chris Lattner
b39e4be1e1 rename a couple of methods, add structure for pattern parsing
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23364 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-15 02:38:02 +00:00
Chris Lattner
b0276200e6 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23361 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-14 22:55:26 +00:00
Chris Lattner
d8a3bde6fd Parse significantly more of the instruction pattern, now collecting and
verifying information about the operands.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23353 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-14 20:53:42 +00:00
Chris Lattner
71cdb7fc7a remove some code that isn't ready for prime time
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23346 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-14 06:03:10 +00:00
Chris Lattner
ec67643e86 Switch to a slightly more structured representation for instructions
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23345 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-14 04:03:16 +00:00
Chris Lattner
1f39e2910b start parsing instructions into patterns, start doing many more checks of
'set's.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23343 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-14 00:09:24 +00:00
Chris Lattner
6de8b53230 continue xform function parsing
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23338 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-13 21:59:15 +00:00
Chris Lattner
24eeeb8c3e Start parsing node transformation information
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23337 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-13 21:51:00 +00:00
Chris Lattner
ee9f0c3c2e completely eliminate TreePattern::PatternType
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23335 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-13 21:20:49 +00:00
Jeff Cohen
8337b0797b Fix miscellaneous Visual Studio build problems.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23307 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-10 02:00:02 +00:00
Chris Lattner
3793709e89 add an accessor to provide more checking
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23289 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-09 01:15:01 +00:00
Chris Lattner
2018005096 add some accessors
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23287 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-09 01:11:17 +00:00
Chris Lattner
327076005d 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)))


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23284 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-08 23:22:48 +00:00
Chris Lattner
33c92e9296 Parse information about type constraints on SDNodes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23281 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-08 21:27:15 +00:00
Chris Lattner
ca559d0654 start parsing SDNode info records
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23279 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-08 21:03:01 +00:00
Chris Lattner
54cb8fd814 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23261 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-07 23:44:43 +00:00
Chris Lattner
4a24c645c8 Add an option and stuff implementation of a dag isel emitter
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23236 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-03 01:14:03 +00:00