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267 Commits

Author SHA1 Message Date
Chris Lattner
2e9eae1fa2 validate that input sdnodes don't exist in an output pattern. 
llvm-svn: 99747
 2010-03-28 06:57:56 +00:00
Chris Lattner
adf7ecf9d3 eliminate a bunch of code duplication in ParseTreePattern 
by rotating it.

llvm-svn: 99746
 2010-03-28 06:50:34 +00:00
Chris Lattner
ffdac7b76a SDTCisVT<0, isVoid> is not valid, reject it. 
llvm-svn: 99744
 2010-03-28 06:04:39 +00:00
Chris Lattner
4a5f7be077 fix CodeGenTarget::getRegisterVTs to not return the 
same vt multiple times for a register.  For example,
ECX is in 5 different i32 reg classes, just return 
1 i32 instead of 5.

llvm-svn: 99727
 2010-03-27 20:32:26 +00:00
Chris Lattner
7bc5d9b576 hoist some funky logic into CodeGenInstruction 
from two places in CodeGenDAGPatterns.cpp, and
use it in DAGISelMatcherGen.cpp instead of using
an incorrect predicate that happened to get lucky
on our current targets.

llvm-svn: 99726
 2010-03-27 20:09:24 +00:00
Chris Lattner
d44966f26d continue pushing tblgen's support for nodes with multiple 
results forward.  We can now handle an instruction that 
produces one implicit def and one result instead of one or
the other when not at the root of the pattern.

llvm-svn: 99725
 2010-03-27 19:15:02 +00:00
Chris Lattner
5c2182ef77 remove parallel support. 
llvm-svn: 99703
 2010-03-27 02:53:27 +00:00
Chris Lattner
6c2d178957 add plumbing for handling multiple result nodes 
in some more places.

llvm-svn: 99366
 2010-03-24 00:41:19 +00:00
Chris Lattner
38c99662ff implement SDTCisVTSmallerThanOp with EnforceSmallerThan 
instead of reimplementing it wrong and poorly.

llvm-svn: 99357
 2010-03-24 00:06:46 +00:00
Chris Lattner
57ebf63da7 bring sanity to EnforceVectorEltType 
llvm-svn: 99354
 2010-03-24 00:01:16 +00:00
Chris Lattner
6070ee2a58 Cleanup getImplicitType 
llvm-svn: 99353
 2010-03-23 23:50:31 +00:00
Chris Lattner
2109cb461c Change intrinsic result type for void to store it as an empty list 
instead of as a single element list with VoidTy.  Now with a fix
for the verifier.

llvm-svn: 99206
 2010-03-22 20:56:36 +00:00
Daniel Dunbar
d177edf361 Fix suggested parentheses warning. 
llvm-svn: 99111
 2010-03-21 01:38:21 +00:00
Eric Christopher
3e2bb702db Revert r99009 temporarily it seems to be breaking the bots. 
llvm-svn: 99011
 2010-03-19 23:04:23 +00:00
Chris Lattner
933b2cf9a8 Change intrinsic result type for void to store it as an empty list 
instead of as a single element list with VoidTy.

llvm-svn: 99009
 2010-03-19 22:40:56 +00:00
Chris Lattner
2db7abaa44 make getOperandNum a static function (since it's just used by 
ApplyTypeConstraint) and make it handle multiple result nodes.

llvm-svn: 99003
 2010-03-19 21:56:21 +00:00
Chris Lattner
f144725ebc major surgery on tblgen: generalize TreePatternNode 
to maintain a list of types (one for each result of
the node) instead of a single type.  There are liberal
hacks added to emulate the old behavior in various
situations, but they can start disolving now.

llvm-svn: 98999
 2010-03-19 21:37:09 +00:00
Chris Lattner
6d765ebc0d make FillWithPossibleTypes take a predicate to filter types so that 
we don't blow the smallvector as often.  No functionality change.

llvm-svn: 98968
 2010-03-19 17:41:26 +00:00
Chris Lattner
bb34b4e10f resolve fixme: we now infer the instruction-level 'isvariadic' bit 
from the pattern if present, and we use it instead of the bit.

llvm-svn: 98938
 2010-03-19 05:34:15 +00:00
Chris Lattner
83aeaab462 add a new SDNPVariadic SDNP node flag, and use it in 
dag isel gen instead of instruction properties.  This
allows the oh-so-useful behavior of matching a variadic
non-root node.

llvm-svn: 98934
 2010-03-19 05:07:09 +00:00
Chris Lattner
be6b17f927 rewrite EnforceSmallerThan to be less bone headed. 
llvm-svn: 98933
 2010-03-19 04:54:36 +00:00
Daniel Dunbar
ec71ba25e5 Fix -Asserts warning. 
llvm-svn: 98927
 2010-03-19 03:18:20 +00:00
Chris Lattner
da5b4ad03e eliminate the last use of EEVT::isUnknown 
llvm-svn: 98918
 2010-03-19 01:14:27 +00:00
Chris Lattner
918be520dc change Target.getInstructionsByEnumValue to return a reference 
to a vector that CGT stores instead of synthesizing it on every 
call.

llvm-svn: 98910
 2010-03-19 00:34:35 +00:00
Chris Lattner
70eb897d7c don't go through getInstructions(). 
llvm-svn: 98906
 2010-03-19 00:18:23 +00:00
Chris Lattner
9aec14b560 look up instructions by record, not by name. 
llvm-svn: 98904
 2010-03-19 00:07:20 +00:00
Chris Lattner
63a627cd88 expand tblgen's support for instructions with implicit defs. 
llvm-svn: 98900
 2010-03-18 23:57:40 +00:00
Chris Lattner
fdc20711e8 infer results of a pattern from implicit defs. This allows you to do something 
like this:

 def : Pat<(add ...),
           (FOOINST)>;

When fooinst only has a single implicit def (e.g. to R1).  This will be handled
as if written as (set R1, (FOOINST ...))

llvm-svn: 98897
 2010-03-18 23:15:10 +00:00
Chris Lattner
13590892e7 simplify this code, the # of sets in the pattern for an instruction 
shouldn't change this.

llvm-svn: 98872
 2010-03-18 21:15:05 +00:00
Chris Lattner
5f418eafdc remove some code that was working around old sparc v9 backend bugs. 
Add checking that the input/output operand list in spelled right.

llvm-svn: 98865
 2010-03-18 20:50:52 +00:00
Chris Lattner
0db1d6500a eliminate some #if 0 code I added in r96905, type inference 
now enforces that input/output named values have hte same type.

llvm-svn: 98535
 2010-03-15 06:03:22 +00:00
Chris Lattner
cabe037b2d Completely rewrite tblgen's type inference mechanism, 
changing the primary datastructure from being a 
"std::vector<unsigned char>" to being a new TypeSet class
that actually has (gasp) invariants!

This changes more things than I remember, but one major
innovation here is that it enforces that named input 
values agree in type with their output values.

This also eliminates code that transparently assumes (in 
some cases) that SDNodeXForm input/output types are the
same, because this is wrong in many case.

This also eliminates a bug which caused a lot of ambiguous
patterns to go undetected, where a register class would
sometimes pick the first possible type, causing an
ambiguous pattern to get arbitrary results.

With all the recent target changes, this causes no 
functionality change!

llvm-svn: 98534
 2010-03-15 06:00:16 +00:00
Chris Lattner
e96802e6ed Node arguments to type casts can have names too. This code 
needs to be majorly refactored, but this spot bugfix allows
things like:

 def vmrghw_shuffle : PatFrag<(ops node:$lhs, node:$rhs),
                             (vector_shuffle (v4i32 node:$lhs), node:$rhs), [{
...

llvm-svn: 97952
 2010-03-08 18:36:19 +00:00
Chris Lattner
1e634e31de resolve a fixme by having the .td file parser reject thigns like 
(set GPR, somecomplexpattern)

if somecomplexpattern doesn't declare what it can match.

llvm-svn: 97513
 2010-03-01 22:29:19 +00:00
Chris Lattner
d39f75ba39 Fix PR2590 by making PatternSortingPredicate actually be 
ordered correctly.  Previously it would get in trouble when
two patterns were too similar and give them nondet ordering.
We force this by using the record ID order as a fallback.

The testsuite diff is due to alpha patterns being ordered
slightly differently, the change is a semantic noop afaict:

< 	lda $0,-100($16)
---
> 	subq $16,100,$0

llvm-svn: 97509
 2010-03-01 22:09:11 +00:00
Chris Lattner
99e53b3b33 Generalize my hack to use SDNodeInfo to find out when a 
node is always guaranteed to have a particular type 
instead of hacking in ISD::STORE explicitly.  This allows
us to use implied types for a broad range of nodes, even
target specific ones.

llvm-svn: 97355
 2010-02-28 00:22:30 +00:00
Chris Lattner
7f28b8e8eb use DEBUG instead of DebugFlag directly so that this 
respects -debug-only=something-else.

llvm-svn: 97307
 2010-02-27 06:51:44 +00:00
Chris Lattner
4b9225b41a add some #if 0'd out code for checking that named values in 
input/output patterns have the same type.  It turns out that 
this triggers all the time because we don't infer types 
between these boundaries.  Until we do, don't turn this on.

llvm-svn: 96905
 2010-02-23 07:50:58 +00:00
Chris Lattner
5b0e24902b Reject patterns that use a name multiple times in the src or result 
of a pattern and where the uses have different types.

llvm-svn: 96904
 2010-02-23 07:22:28 +00:00
Chris Lattner
a7722b6f76 reject patterns that have dead named arguments in the input pattern 
this is tidier and can find bugs.

llvm-svn: 96900
 2010-02-23 06:55:24 +00:00
Chris Lattner
94d3b0a77d reject patterns that mention a name in the destination pattern 
but not in the input.  Previously, this would trigger an abort
late in the isel logic.

llvm-svn: 96898
 2010-02-23 06:35:45 +00:00
Chris Lattner
0c0baa91a4 merge some code. 
llvm-svn: 96896
 2010-02-23 06:16:51 +00:00
Chris Lattner
f66b6aa232 more tidying up 
llvm-svn: 96891
 2010-02-23 05:59:10 +00:00
Chris Lattner
ee820ace06 reduce indentation by eliminating 'else after return' 
llvm-svn: 96889
 2010-02-23 05:51:07 +00:00
Chris Lattner
f2d7099b3b reduce nesting. 
llvm-svn: 96466
 2010-02-17 06:53:36 +00:00
Chris Lattner
450d50467c constize 
llvm-svn: 96199
 2010-02-14 22:33:49 +00:00
Chris Lattner
53c39ba3c1 clean up a bunch of code, move some random predicates 
on TreePatternNode to be methods on TreePatternNode.

llvm-svn: 96197
 2010-02-14 22:22:58 +00:00
Chris Lattner
78291e3be8 tidy up 
llvm-svn: 96186
 2010-02-14 21:10:15 +00:00
Bill Wendling
b45a3d8de4 Use the 'MadeChange' variable instead of returning 'false' all of the time. 
llvm-svn: 92155
 2009-12-25 13:35:40 +00:00
Anton Korobeynikov
0f38d989bd Do not infer the target type for COPY_TO_REGCLASS from dest regclass, this won't work if it can contain several types. Require explicit result type for the node for now. This fixes PR5364. 
PS: It seems that blackfin usage of copy_to_regclass is completely bogus!
llvm-svn: 85766
 2009-11-02 00:11:39 +00:00