Chris Lattner
a8505609fe
fix PR6305 by handling BlockAddress in a helper function
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called by jump threading.
llvm-svn: 96263
2010-02-15 20:47:49 +00:00
Evan Cheng
b5fe25544c
Split SelectionDAGISel::IsLegalAndProfitableToFold to
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IsLegalToFold and IsProfitableToFold. The generic version of the later simply checks whether the folding candidate has a single use.
This allows the target isel routines more flexibility in deciding whether folding makes sense. The specific case we are interested in is folding constant pool loads with multiple uses.
llvm-svn: 96255
2010-02-15 19:41:07 +00:00
David Greene
ba8bac644b
Add support for emitting non-temporal stores for DAGs marked
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non-temporal.
llvm-svn: 96241
2010-02-15 17:02:56 +00:00
David Greene
4f983d569c
Add non-temporal flags and remove an assumption of default arguments.
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llvm-svn: 96240
2010-02-15 17:00:31 +00:00
David Greene
1b3d9eece5
Remove an assumption of default arguments. This is in anticipation of a
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change to SelectionDAG build APIs.
llvm-svn: 96239
2010-02-15 16:57:43 +00:00
David Greene
fcf8375377
Remove an assumption of default arguments. This is in anticipation of a
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change to SelectionDAG build APIs.
llvm-svn: 96238
2010-02-15 16:57:13 +00:00
David Greene
196564c820
Remove an assumption of default arguments. This is in anticipation of a
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change to SelectionDAG build APIs.
llvm-svn: 96237
2010-02-15 16:57:02 +00:00
David Greene
b503e48b12
Remove an assumption of default arguments. This is in anticipation of a
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change to SelectionDAG build APIs.
llvm-svn: 96236
2010-02-15 16:56:53 +00:00
David Greene
ea559af89a
Remove an assumption of default arguments. This is in anticipation of a
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change to SelectionDAG build APIs.
llvm-svn: 96235
2010-02-15 16:56:34 +00:00
David Greene
725287f422
Remove an assumption of default arguments. This is in anticipation of a
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change to SelectionDAG build APIs.
llvm-svn: 96234
2010-02-15 16:56:22 +00:00
David Greene
118edab4c9
Remove an assumption of default arguments. This is in anticipation of a
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change to SelectionDAG build APIs.
llvm-svn: 96233
2010-02-15 16:56:10 +00:00
David Greene
47a10d2053
Remove an assumption of default arguments. This is in anticipation of a
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change to SelectionDAG build APIs.
llvm-svn: 96232
2010-02-15 16:55:58 +00:00
David Greene
3bb90b9985
Remove an assumption of default arguments. This is in anticipation of a
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change to SelectionDAG build APIs.
llvm-svn: 96231
2010-02-15 16:55:37 +00:00
David Greene
1efa05ab91
Remove an assumption of default arguments. This is in anticipation of a
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change to SelectionDAG build APIs.
llvm-svn: 96230
2010-02-15 16:55:24 +00:00
David Greene
b3a7357944
Remove an assumption of default arguments. This is in anticipation of a
...
change to SelectionDAG build APIs.
llvm-svn: 96229
2010-02-15 16:55:07 +00:00
David Greene
75cc8f80a6
Remove an assumption of default arguments. This is in anticipation of a
...
change to SelectionDAG build APIs.
llvm-svn: 96228
2010-02-15 16:53:33 +00:00
David Greene
dd3a290ebf
Remove an assumption of default arguments. This is in anticipation of a
...
change to SelectionDAG build APIs.
llvm-svn: 96227
2010-02-15 16:49:52 +00:00
David Greene
0ed0396052
Add non-temporal flags to MachineMemOperand.
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llvm-svn: 96226
2010-02-15 16:48:31 +00:00
Duncan Sands
2acaf3609c
Uniformize the names of type predicates: rather than having isFloatTy and
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isInteger, we now have isFloatTy and isIntegerTy. Requested by Chris!
llvm-svn: 96223
2010-02-15 16:12:20 +00:00
Andrew Lenharth
87e914773e
Fix changes from r75027
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llvm-svn: 96220
2010-02-15 15:00:44 +00:00
Dan Gohman
adc600ceb5
When testing whether a given SCEV depends on a temporary symbolic
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name, test whether the SCEV itself is that temporary symbolic name,
in addition to checking whether the symbolic name appears as a
possibly-indirect operand.
llvm-svn: 96216
2010-02-15 10:28:37 +00:00
Chris Lattner
ba70b52fe6
no need to add the instruction count anymore.
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llvm-svn: 96212
2010-02-15 06:38:41 +00:00
Chris Lattner
bd65f192f2
enhance raw_svector_ostream::write_impl to work with unbuffered streams,
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which may call write_impl on things that are not the usual buffer.
llvm-svn: 96209
2010-02-15 02:18:26 +00:00
Chris Lattner
eeadc240f2
make PadToColumn return the stream so you can use:
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OS.PadToColumn(42) << "foo";
llvm-svn: 96208
2010-02-15 02:17:50 +00:00
Dale Johannesen
c23d94e163
Ignore DBG_VALUE in a couple more places.
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llvm-svn: 96207
2010-02-15 01:45:47 +00:00
Dan Gohman
6c0fdcea5e
When restoring a saved insert location, check to see if the saved
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insert location has become an "inserted" instruction since the time
it was saved. If so, advance to the first non-"inserted" instruction.
llvm-svn: 96203
2010-02-15 00:21:43 +00:00
Chris Lattner
f036c806b3
mark "addr" as having type "iPTR", eliminating some type comparisons
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in hte generated dag isel fil.
llvm-svn: 96193
2010-02-14 21:53:19 +00:00
Dan Gohman
c954fc3333
Fix whitespace.
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llvm-svn: 96179
2010-02-14 18:51:39 +00:00
Dan Gohman
900be69752
Fix a comment.
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llvm-svn: 96178
2010-02-14 18:51:20 +00:00
Dan Gohman
de32b2fac0
When complicated expressions are broken down into subexpressions
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with multiplication by constants distributed through, occasionally
those subexpressions can include both x and -x. For now, if this
condition is discovered within LSR, just prune such cases away,
as they won't be profitable. This fixes a "zero allocated in a
base register" assertion failure.
llvm-svn: 96177
2010-02-14 18:50:49 +00:00
Sanjiv Gupta
318fdf4e39
fixes to pagesel/banksel inserter.
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1. restore these across direct/indirect calls.
2. restore pagesel for any macros with gotos.
llvm-svn: 96175
2010-02-14 18:27:42 +00:00
Anton Korobeynikov
3461f67cee
Forgot to commit the header
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llvm-svn: 96174
2010-02-14 18:25:41 +00:00
Chris Lattner
42c8f96141
follow-on to PR6280
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llvm-svn: 96172
2010-02-14 18:20:09 +00:00
Anton Korobeynikov
9436d20d76
Drop winmcasminfo and use normal AT&T COFF for all windows targets.
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Otherwise AT&T asm printer is used with non-compatible MCAsmInfo and
there is no way to override this behaviour.
llvm-svn: 96165
2010-02-14 15:19:54 +00:00
Johnny Chen
475f273d63
Try to factorize the specification of saturating add/subtract operations a bit,
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as suggested by Bob Wilson.
llvm-svn: 96153
2010-02-14 06:32:20 +00:00
Dan Gohman
dbffcb6c92
Actually, this code doesn't have to be quite so conservative in
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the no-TLI case. But it should still default to declining the
transformation.
llvm-svn: 96152
2010-02-14 03:21:49 +00:00
Dan Gohman
4d5f3b74e4
In rememberInstruction, if the value being remembered is the
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current insertion point, advance the current insertion point.
This avoids a use-before-def situation in a testcase extracted
from clang which is difficult to reduce to a reasonable-sized
regression test.
llvm-svn: 96151
2010-02-14 03:12:47 +00:00
Dan Gohman
47756a8549
Simplify this code; no need for a custom subclass if it doesn't need
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to override anything from the parent class.
llvm-svn: 96150
2010-02-14 02:48:58 +00:00
Dan Gohman
3b065f43af
Don't attempt aggressive post-inc uses if TargetLowering is not available,
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because profitability can't be sufficiently approximated.
llvm-svn: 96148
2010-02-14 02:45:21 +00:00
John McCall
5089836939
Make LSR not crash if invoked without target lowering info, e.g. if invoked
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from opt.
llvm-svn: 96135
2010-02-13 23:40:16 +00:00
Eric Christopher
96f3c4222f
Fix a problem where we had bitcasted operands that gave us
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odd offsets since the bitcasted pointer size and the offset pointer
size are going to be different types for the GEP vs base object.
llvm-svn: 96134
2010-02-13 23:38:01 +00:00
Chris Lattner
b9c4a15ad5
teach the encoder to handle pseudo instructions like FP_REG_KILL,
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encoding them into nothing.
llvm-svn: 96110
2010-02-13 19:16:53 +00:00
Chris Lattner
23368e55d7
remove dead code.
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llvm-svn: 96109
2010-02-13 19:07:06 +00:00
Daniel Dunbar
e6679afaa7
MCAssembler: Fix pcrel relocations. Oh and,
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--
ddunbar@ozzy:tmp$ clang -m32 -integrated-as hello.c && ./a.out
hello world!
--
llvm-svn: 96096
2010-02-13 09:45:59 +00:00
Daniel Dunbar
c05a38a3d3
MC/Mach-O: Start emitting fixups/relocations for instructions.
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llvm-svn: 96095
2010-02-13 09:29:02 +00:00
Daniel Dunbar
7a1fd21459
MCAssembler: Switch MCAsmFixup to storing MCFixupKind instead of just a size.
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llvm-svn: 96094
2010-02-13 09:28:54 +00:00
Daniel Dunbar
8e9044353a
MCAssembler: Sink fixup list into MCDataFragment.
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llvm-svn: 96093
2010-02-13 09:28:43 +00:00
Daniel Dunbar
95ae012b0e
MCAssembler: Switch MCFillFragment to only taking constant values. Symbolic expressions can always be emitted as data + fixups.
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llvm-svn: 96092
2010-02-13 09:28:32 +00:00
Daniel Dunbar
cc282ba52e
MC/Mach-O: Implement EmitValue using data fragments + fixups instead of fill fragment.
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llvm-svn: 96091
2010-02-13 09:28:22 +00:00
Daniel Dunbar
481e926468
MCAssembler: Start applying fixups in the data section.
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llvm-svn: 96090
2010-02-13 09:28:15 +00:00