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Author SHA1 Message Date
Dan Gohman
2a4208c74e Fold bswap(undef) to undef. 
llvm-svn: 96432
 2010-02-17 00:54:58 +00:00
Dan Gohman
82f46afcdd Delete some unneeded casts. 
llvm-svn: 96429
 2010-02-17 00:42:19 +00:00
Dan Gohman
493a1fcbe0 Don't attempt to divide INT_MIN by -1; consider such cases to 
have overflowed.

llvm-svn: 96428
 2010-02-17 00:41:53 +00:00
Chris Lattner
9625fb062a make the new isel's interpreter loop call the generated 
CheckComplexPattern function.  Though it is logically const,
I don't have the fortitude to clean up all the targets now,
and it not being const doesn't block anything.

llvm-svn: 96426
 2010-02-17 00:41:34 +00:00
Chris Lattner
fdd452441a improve comments in generated matcher a bit. 
llvm-svn: 96422
 2010-02-17 00:39:26 +00:00
Dan Gohman
d35c563d80 Make the operand and format specifier match, and print all 
64 bits, fixing a variety of problems.

llvm-svn: 96421
 2010-02-17 00:37:20 +00:00
Chris Lattner
1f818d2e25 make the new isel generator plop out a CheckComplexPattern function 
for evaluating complex patterns.  Some cleanup has to happen before
this can be used though.

llvm-svn: 96419
 2010-02-17 00:31:50 +00:00
Bob Wilson
532656cffc Wrap lines to 80 columns and generally try to clean up whitespace and 
indentation.  No functional changes.

llvm-svn: 96418
 2010-02-17 00:31:29 +00:00
Chris Lattner
c87f9d6d1a roundss is an sse 4 thing, fix the test on non-sse41 builders 
like llvm-gcc-x86_64-darwin10-selfhost

llvm-svn: 96417
 2010-02-17 00:29:06 +00:00
Chris Lattner
ebf80812e3 fix inverted condition. 
llvm-svn: 96416
 2010-02-17 00:11:30 +00:00
Dale Johannesen
d147b9a4d4 Make g5 target explicit; scheduling affects register choice. 
llvm-svn: 96413
 2010-02-16 23:25:23 +00:00
Chris Lattner
3499eaaac1 complex patterns don't get 'record' nodes, they implicitly 
record all their results.

llvm-svn: 96412
 2010-02-16 23:16:25 +00:00
Chris Lattner
c89e98d63b clean up some code, eliminate NodeIsComplexPattern, which 
does the same thing as getComplexPatternInfo.

llvm-svn: 96411
 2010-02-16 23:13:59 +00:00
Bill Wendling
964b01232c Make error statement more personal. 
llvm-svn: 96410
 2010-02-16 22:47:14 +00:00
Chris Lattner
617c3a5c69 fix indentation 
llvm-svn: 96409
 2010-02-16 22:38:31 +00:00
Chris Lattner
0d35c68d5c fix rdar://7653908, a crash on a case where we would fold a load 
into a roundss intrinsic, producing a cyclic dag.  The root cause
of this is badness handling ComplexPattern nodes in the old dagisel
that I noticed through inspection.  Eliminate a copy of the of the
code that handled ComplexPatterns by making EmitChildMatchCode call
into EmitMatchCode.

llvm-svn: 96408
 2010-02-16 22:35:06 +00:00
Dale Johannesen
60d48aef7b Adjust register numbers in tests to compensate for the 
new lack of R2.

llvm-svn: 96407
 2010-02-16 22:31:31 +00:00
Chris Lattner
008f62bfa2 filecheckize 
llvm-svn: 96404
 2010-02-16 22:13:43 +00:00
Bob Wilson
ed0eab5843 Handle tGPR register class in a few more places. This fixes some llvm-gcc 
build failures due to my fix for pr6111.

llvm-svn: 96402
 2010-02-16 22:01:59 +00:00
Johnny Chen
7171461638 Add SMC (Secure Monitor Call) system instruction for disassembly only. 
llvm-svn: 96401
 2010-02-16 21:59:54 +00:00
Dale Johannesen
f31a06506f Really reserve R2 on PPC Darwin. PR 6314. 
llvm-svn: 96399
 2010-02-16 21:53:27 +00:00
Devang Patel
bebe8e55dc Use line and column number to distinguish two lexical blocks at the same level. 
llvm-svn: 96395
 2010-02-16 21:39:34 +00:00
Jim Grosbach
2acf602672 80 column cleanup 
llvm-svn: 96393
 2010-02-16 21:23:02 +00:00
Devang Patel
1b865d88f9 New testcase. 
llvm-svn: 96391
 2010-02-16 21:16:08 +00:00
Evan Cheng
ee44d6a752 Look for SSE and instructions of this form: (and x, (build_vector c1,c2,c3,c4)). 
If there exists a use of a build_vector that's the bitwise complement of the mask,
then transform the node to
(and (xor x, (build_vector -1,-1,-1,-1)), (build_vector ~c1,~c2,~c3,~c4)).

Since this transformation is only useful when 1) the given build_vector will
become a load from constpool, and 2) (and (xor x -1), y) matches to a single
instruction, I decided this is appropriate as a x86 specific transformation.
rdar://7323335

llvm-svn: 96389
 2010-02-16 21:09:44 +00:00
Jim Grosbach
0c678d7b17 Remove trailing whitespace 
llvm-svn: 96388
 2010-02-16 21:07:46 +00:00
Bob Wilson
86dded571f Rename SuccessorNumber to GetSuccessorNumber. 
llvm-svn: 96387
 2010-02-16 21:06:42 +00:00
David Greene
c10133139e Add support for emitting non-temporal stores for DAGs marked 
non-temporal.  Fix from r96241 for botched encoding of MOVNTDQ.

Add documentation for !nontemporal metadata.

Add a simpler movnt testcase.

llvm-svn: 96386
 2010-02-16 20:50:18 +00:00
Bob Wilson
7bb549dc8e Testcase for critical edge splitting with load PRE. 
llvm-svn: 96385
 2010-02-16 20:48:55 +00:00
Jim Grosbach
0c8c072ddf Update Thumb2 to not use CarryDefIsUnused or CarryDefIsUsed predicates, but 
to have the predicate on the pattern itself instead. Support for the new
ISel. Remove definitions of CarryDefIsUnused and CarryDefIsUsed since they are
no longer used anywhere.

llvm-svn: 96384
 2010-02-16 20:42:29 +00:00
Jim Grosbach
27e3b55717 Remove redundant setting of Defs. CPSR is already marked by the block level set of Defs. 
llvm-svn: 96383
 2010-02-16 20:35:59 +00:00
Dan Gohman
e2da5181db Refactor rewriting for PHI nodes into a separate function. 
llvm-svn: 96382
 2010-02-16 20:25:07 +00:00
Jim Grosbach
872d6b21aa First step in eliminating the CarryDefIsUnused and CarryDefIsUsed predicates. 
They won't work with the new ISel mechanism, as Requires predicates are no
longer allowed to reference the node being selected. Moving the predicate to
the patterns instead solves the problem.

This patch handles ARM mode. Thumb2 will follow.

llvm-svn: 96381
 2010-02-16 20:17:57 +00:00
Johnny Chen
900ebc03c5 Added for disassembly the following instructions: 
o Store Return State (SRSW, SRS)
o Load/Store Coprocessor (LDC/STC and friends)
o MSR (immediate)

llvm-svn: 96380
 2010-02-16 20:04:27 +00:00
Bob Wilson
a866c660db Split critical edges as needed for load PRE. 
llvm-svn: 96378
 2010-02-16 19:51:59 +00:00
Bob Wilson
1115365fcf Refactor to share code to find the position of a basic block successor in the 
terminator's list of successors.

llvm-svn: 96377
 2010-02-16 19:49:17 +00:00
Dan Gohman
815d966a5a Fix whitespace. 
llvm-svn: 96372
 2010-02-16 19:42:34 +00:00
Kenneth Uildriks
13195c9525 Function attributes have index ~0, not 0 
llvm-svn: 96370
 2010-02-16 19:28:02 +00:00
Chris Lattner
cafd2c75a1 simplify this code. In the new world order there is no 
need to scan the entire subtree of the pattern anymore.

llvm-svn: 96369
 2010-02-16 19:19:58 +00:00
Chris Lattner
ebcd505b14 convert the new matcher to check intermediate nodes for a single 
use and only call IsProfitableToFold/IsLegalToFold on the load
being folded, like the old dagiselemitter does.  This 
substantially simplifies the code and improves opportunities for
sharing.

llvm-svn: 96368
 2010-02-16 19:15:55 +00:00
Chris Lattner
eba9f75b00 change dag isel emitter to only call 'IsProfitableToFold' on nodes 
with chains.  On interior nodes that lead up to them, we just directly
check that there is a single use.  This generates slightly more
efficient code.

llvm-svn: 96366
 2010-02-16 19:03:34 +00:00
Bob Wilson
94eef3fc13 Fix pr6111: Avoid using the LR register for the target address of an indirect 
branch in ARM v4 code, since it gets clobbered by the return address before
it is used.  Instead of adding a new register class containing all the GPRs
except LR, just use the existing tGPR class.

llvm-svn: 96360
 2010-02-16 17:24:15 +00:00
Duncan Sands
e9a13a3c60 Introduce isOpaqueTy and use it rather than isa<OpaqueType>. Also, move some 
methods to try to have the type predicates be more logically positioned.

llvm-svn: 96349
 2010-02-16 14:50:09 +00:00
Duncan Sands
1b33dd3c83 There are two ways of checking for a given type, for example isa<PointerType>(T) 
and T->isPointerTy().  Convert most instances of the first form to the second form.
Requested by Chris.

llvm-svn: 96344
 2010-02-16 11:11:14 +00:00
Benjamin Kramer
32ff92be51 Minor warning fixes (semicolons, newline at EOF). 
llvm-svn: 96343
 2010-02-16 10:25:04 +00:00
Chris Lattner
2507e6b51f mark all the generated node predicates 'const'. 
llvm-svn: 96337
 2010-02-16 07:26:36 +00:00
Chris Lattner
a9550b6d27 generate code for node and pattern predicates. Note that this won't 
build if enabled, it will fail with constness issues. I'll resolve 
these next.

llvm-svn: 96336
 2010-02-16 07:21:10 +00:00
Chris Lattner
5a026d7367 refactor some code into a local class. 
llvm-svn: 96334
 2010-02-16 06:52:01 +00:00
Chris Lattner
eb72054cb3 remove now dead code and fixme. 
llvm-svn: 96333
 2010-02-16 06:15:00 +00:00
Chris Lattner
5901090df8 remove dead code. This is never generated for any targets in mainline. 
llvm-svn: 96332
 2010-02-16 06:14:22 +00:00