Owen Anderson
0b1a8af290
Use TargetLowering to get the types in fast isel, which handles pointer types correctly for our purposes.
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llvm-svn: 55428
2008-08-27 18:58:30 +00:00
Dan Gohman
b76e1ca974
Don't check TLI.getOperationAction. The FastISel way is to
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just try to do the action and let the tablegen-generated code
determine if there is target-support for an operation.
llvm-svn: 55427
2008-08-27 18:15:05 +00:00
Dan Gohman
d5e34d9dce
Add a new FastISel method, getRegForValue, which takes care of
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the details of materializing constants and other values into
registers, and make use of it in several places.
llvm-svn: 55426
2008-08-27 18:10:19 +00:00
Dan Gohman
6174651396
Add a comment about the current floating-point constant code in FastISel.
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llvm-svn: 55425
2008-08-27 18:01:42 +00:00
Devang Patel
23569e6a1f
Fix typos and whitespaces. Other cosmetic changes based on feedback.
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llvm-svn: 55424
2008-08-27 17:50:18 +00:00
Chris Lattner
551cf02a2d
Minor cleanup.
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llvm-svn: 55423
2008-08-27 17:36:58 +00:00
Dan Gohman
3976cccecd
Reinstate the x86-64 portion of r55190. When doing extloads into
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64-bit registers from 16-bit and smaller memory locations, prefer
instructions that define the entire 64-bit register, to avoid
partial-register updates.
llvm-svn: 55422
2008-08-27 17:33:15 +00:00
Dan Gohman
d9e0302919
Optimize ScheduleDAGRRList's topological sort to use one pass instead
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of two, and to not need a scratch std::vector. Also, compute the ordering
immediately in the result array, instead of in another scratch std::vector
that is copied to the result array.
llvm-svn: 55421
2008-08-27 16:29:48 +00:00
Dan Gohman
db4286e6f7
Optimize ScheduleDAG's ComputeDepths and ComputeHeights to not need
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a scratch std::vector.
llvm-svn: 55420
2008-08-27 16:27:25 +00:00
Dan Gohman
5189ab26fb
Remove the std::ostream form of PseudoSourceValue's print,
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which isn't needed anymore.
llvm-svn: 55419
2008-08-27 16:19:44 +00:00
Dan Gohman
378f477a02
Update a comment to reflect recent changes.
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llvm-svn: 55418
2008-08-27 16:18:22 +00:00
Dan Gohman
47abc17d0f
Unbreak PseudoSourceValue::print. This fixes -print-machine-instrs
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and various other things.
llvm-svn: 55415
2008-08-27 15:24:43 +00:00
Dan Gohman
be3a88eac3
Diagnose uses of unsized types with the byval attribute in the
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verifier. See PR2711 for details.
llvm-svn: 55414
2008-08-27 14:48:06 +00:00
Dan Gohman
6d6043d2fc
Update wording, as aggregates are now first-class.
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llvm-svn: 55413
2008-08-27 14:44:57 +00:00
Evan Cheng
20b295388f
Add DebugInfoBuilder. Patch by Talin!
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llvm-svn: 55409
2008-08-27 06:51:14 +00:00
Dan Gohman
5e5f1c9e8f
Basic FastISel support for floating-point constants.
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llvm-svn: 55401
2008-08-27 01:09:54 +00:00
Owen Anderson
a0b7e0ab93
Fix handling of inttoptr and ptrtoint when unhandled operands are present.
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llvm-svn: 55400
2008-08-27 00:35:37 +00:00
Owen Anderson
c5d2fe6354
Add support for fast isel of inttoptr and ptrtoint in the cases where truncation is not needed.
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llvm-svn: 55399
2008-08-27 00:31:01 +00:00
Owen Anderson
a8911f33f8
Factor out a large amoutn of the cast handling code in fast isel into helper methods.
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This simultaneously makes the code simpler and adds support for sext as well.
llvm-svn: 55398
2008-08-26 23:46:32 +00:00
Dan Gohman
284f18a884
Add a MachineInstrBuilder method for adding floating-point
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immediate operands.
llvm-svn: 55397
2008-08-26 23:19:23 +00:00
Owen Anderson
0cee245fdc
Add support for fast isel of zext.
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llvm-svn: 55396
2008-08-26 23:14:49 +00:00
Gabor Greif
4b86114f92
disallow direct access to SDValue::ResNo, provide a getter instead
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llvm-svn: 55394
2008-08-26 22:36:50 +00:00
Owen Anderson
d33f25d615
Add support for fptosi of constants in fast isel.
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llvm-svn: 55393
2008-08-26 22:34:28 +00:00
Owen Anderson
14510f8fee
Put a heuristic in place to prevent GVN from falling into bad cases with massively complicated CFGs.
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This speeds up a particular testcase from 12+ hours to 5 seconds with little perceptible loss of quality.
llvm-svn: 55391
2008-08-26 22:07:42 +00:00
Dan Gohman
3e50c6348a
Optimize SelectionDAG's topological sort to use one pass instead
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of two, and to not need a scratch std::vector. Also, use the
SelectionDAG's topological sort in LegalizeDAG instead of having
a separate implementation.
llvm-svn: 55389
2008-08-26 21:42:18 +00:00
Dan Gohman
57b5f9b931
Refactor the bitcast code into its own function.
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llvm-svn: 55387
2008-08-26 21:28:54 +00:00
Dan Gohman
84d7f86244
Refactor a bunch of FastISelEmitter code into a helper class, and
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put each major step in a separate function. This makes the high
level sequence of events easier to follow.
llvm-svn: 55385
2008-08-26 21:21:20 +00:00
Dan Gohman
58882d14c4
Make FastISel use the correct argument type when casting GEP indices.
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llvm-svn: 55384
2008-08-26 20:57:08 +00:00
Dan Gohman
722e912650
Don't select binary instructions with illegal types.
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llvm-svn: 55383
2008-08-26 20:52:40 +00:00
Owen Anderson
b15e88b671
Add support for fast isel of sitofp, and remove some unnecessary and imprecise legality checks.
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llvm-svn: 55381
2008-08-26 20:37:00 +00:00
Cedric Venet
62a65ed510
- small bug corrected: incorrect iterator type.
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- fix to please VS: add a return after an assert.
llvm-svn: 55380
2008-08-26 19:49:04 +00:00
Owen Anderson
821ddf6726
Use a combination of copyRegToReg and ISD::BIT_CONVERT when doing fast isel of bitcasts,
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allowing it to support the full range of conversions people might ask for in a correct manner.
llvm-svn: 55378
2008-08-26 18:51:24 +00:00
Owen Anderson
fc7b8f3073
These assertions should be return false's instead, allowing the client to detect the failure.
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llvm-svn: 55377
2008-08-26 18:50:40 +00:00
Owen Anderson
9e2381b77d
We need to check that the return type is correct, even in cases where we don't
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have a return type that differs from the operand types.
llvm-svn: 55376
2008-08-26 18:50:00 +00:00
Owen Anderson
5fef19facf
Make TargetInstrInfo::copyRegToReg return a bool indicating whether the copy requested
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was inserted or not. This allows bitcast in fast isel to properly handle the case
where an appropriate reg-to-reg copy is not available.
llvm-svn: 55375
2008-08-26 18:03:31 +00:00
Devang Patel
211c05f7a3
If IV is used in a int-to-float cast inside the loop then try to eliminate the cast operation.
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llvm-svn: 55374
2008-08-26 17:57:54 +00:00
Owen Anderson
76c3c73a7a
Add support for fast isel of non-constant fptosi instructions.
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llvm-svn: 55373
2008-08-26 17:44:42 +00:00
Gabor Greif
ee460cd197
fix doxygen comment
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llvm-svn: 55372
2008-08-26 17:44:40 +00:00
Ted Kremenek
5f192023b2
Grammar fix.
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llvm-svn: 55371
2008-08-26 16:41:15 +00:00
Ted Kremenek
909c1c36e2
Added "str()" method to raw_string_ostream.
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str() mirrors the same method in std::ostringstream.
str() flushes the buffered stream contents to string and returns a reference to the string.
llvm-svn: 55370
2008-08-26 16:34:01 +00:00
Chris Lattner
1804f18b34
code simplification, no functionality change.
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llvm-svn: 55363
2008-08-26 07:01:28 +00:00
Chris Lattner
006fc6636d
stabilize more printing, this doesn't cause a problem
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in the example attached to PR2590, but is a problem in general.
llvm-svn: 55361
2008-08-26 06:50:46 +00:00
Chris Lattner
6adb1b1b26
stablize SubRegsSet printing, part of PR2590
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llvm-svn: 55360
2008-08-26 06:49:06 +00:00
Chris Lattner
e589d360a1
Stabilize 'getDwarfRegNumFull' output to not depend on random memory
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orders, part of PR2590
llvm-svn: 55359
2008-08-26 06:43:25 +00:00
Chris Lattner
c5c00890e5
If an xmm register is referenced explicitly in an inline asm, make sure to
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assign it to a version of the xmm register with the regclass that matches its
type. This fixes PR2715, a bug handling some crazy xpcom case in mozilla.
llvm-svn: 55358
2008-08-26 06:19:02 +00:00
Chris Lattner
4367c5c58b
typo fix.
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llvm-svn: 55355
2008-08-26 06:07:47 +00:00
Dan Gohman
815d50b9e6
Actually recycle SDNode allocations. SelectionDAG is using
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RecyclingAllocator, but this change is needed for the nodes
to actually be recycled. This cuts SelectionDAG's memory
usage high-water-mark in half in some cases.
llvm-svn: 55351
2008-08-26 01:44:34 +00:00
Dan Gohman
5438048f54
Avoid a warning about isTargetNullPtr being unused in release builds.
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llvm-svn: 55350
2008-08-26 01:38:29 +00:00
Owen Anderson
9c207563a1
Throw the switch to allow FastISel to emit instructions whose return types different from their inputs. Next step: adding lowering pattens in FastISel that actually use these newly available opcodes.
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llvm-svn: 55349
2008-08-26 01:22:59 +00:00
Evan Cheng
65d29b2553
This is done.
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llvm-svn: 55348
2008-08-26 01:13:44 +00:00