Commit Graph

59413 Commits

Author SHA1 Message Date
Dale Johannesen
1feeadac1b Handle DEBUG_VALUE in this pass.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99573 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-26 00:02:44 +00:00
Jim Grosbach
7ec7a0e96b switch the flag for using NEON for SP floating point to a subtarget 'feature'.
Re-commit. This time complete with testsuite updates.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99570 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25 23:47:34 +00:00
Jim Grosbach
78e496e165 need to fix 'make check' tests first. revert for a moment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99569 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25 23:34:05 +00:00
Jim Grosbach
bd17bc96bf switch the flag for using NEON for SP floating point to a subtarget 'feature'
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99568 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25 23:32:19 +00:00
Gabor Greif
44424646ac rename pred_const_iterator to const_pred_iterator for consistency's sake
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99567 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25 23:25:28 +00:00
Johnny Chen
da9283cd57 Removed instruction class NI from ARMInstrFormats.td.
It doesn't seem to be used anywhere.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99566 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25 23:11:56 +00:00
Jim Grosbach
6b2e8dc9a0 switch the use-vml[as] instructions flag to a subtarget 'feature'
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99565 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25 23:11:16 +00:00
Gabor Greif
60ad781c61 rename use_const_iterator to const_use_iterator for consistency's sake
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99564 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25 23:06:16 +00:00
Daniel Dunbar
ac2884a717 llvm-mc: Add a -mc-relax-all option, which relaxes every fixup. We always need
exactly two passes in that case, and don't ever need to recompute any layout,
so this is a nice baseline for relaxation performance.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99563 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25 22:49:09 +00:00
Johnny Chen
2d2898e6e9 Add NVDupLnFrm and change NVDupLane class to use that format.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99557 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25 21:49:12 +00:00
Jim Grosbach
65cef00142 ARM cortex-a8 doesn't do vmla/vmls well. disable them by default for that cpu
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99549 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25 20:48:50 +00:00
Johnny Chen
fa80bec349 Add NVCVTFrm (NEON Convert with fractional bits immediate) and modify N2VImm to
expect a Format arg.  N2VCvtD/N2VCvtQ are modified to use the NVCVTFrm format.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99548 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25 20:39:04 +00:00
Evan Cheng
0ea15ecfda Add nounwind.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99546 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25 20:01:07 +00:00
Evan Cheng
460e479b19 Code clean up.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99544 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25 19:46:11 +00:00
Daniel Dunbar
0cc8bd4861 MC: Stop restarting layout on every relaxation.
- Still O(N^2), just a faster form, and now its the MCAsmLayout's fault.

On the .s I am tuning against (combine.s from 403.gcc):
--
ddunbar@lordcrumb:MC$ diff stats-before.txt stats-after.txt
5,10c5,10
<    1728 assembler - Number of assembler layout and relaxation steps
<    7707 assembler - Number of emitted assembler fragments
<  120588 assembler - Number of emitted object file bytes
< 2233448 assembler - Number of evaluated fixups
<    1727 assembler - Number of relaxed instructions
< 6723845 mcexpr    - Number of MCExpr evaluations
---
>      3 assembler - Number of assembler layout and relaxation steps
>   7707 assembler - Number of emitted assembler fragments
> 120588 assembler - Number of emitted object file bytes
>  14796 assembler - Number of evaluated fixups
>   1727 assembler - Number of relaxed instructions
>  67889 mcexpr    - Number of MCExpr evaluations
--
Feel free to LOL at the -before numbers, if you like.

I am a little surprised we make more than 2 relaxation passes. It's pretty
trivial for us to do relaxation out-of-order if that would give a speedup.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99543 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25 19:35:56 +00:00
Daniel Dunbar
6307dd263f Fix -Asserts warning, again.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99542 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25 19:35:53 +00:00
Jakob Stoklund Olesen
4a2a6e73d9 Tag SSE2 integer instructions as SSEPackedInt.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99540 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25 18:52:04 +00:00
Jakob Stoklund Olesen
70feca409e Teach TableGen to understand X.Y notation in the TSFlagsFields strings.
Remove much horribleness from X86InstrFormats as a result. Similar
simplifications are probably possible for other targets.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99539 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25 18:52:01 +00:00
Chris Lattner
7bf198fd60 fix a valgrind error on copy-constructor-synthesis.cpp, which is caused when
the custom insertion hook deletes the instruction, then we try to set dead
flags on it.  Neither the code that I added nor the code that was there 
before was safe.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99538 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25 18:49:10 +00:00
Evan Cheng
fd59f4cd3d Remove an unused option.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99537 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25 18:37:23 +00:00
Daniel Dunbar
f476b00f51 MC: Simplify main section layout process by moving alignment into LayoutSection.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99529 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25 18:16:42 +00:00
Daniel Dunbar
be644a38c0 MC: Sink Section address assignment into LayoutSection.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99528 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25 18:16:38 +00:00
Jakob Stoklund Olesen
352aa503fa Add a late SSEDomainFix pass that twiddles SSE instructions to avoid domain crossings.
On Nehalem and newer CPUs there is a 2 cycle latency penalty on using a register
in a different domain than where it was defined. Some instructions have
equvivalents for different domains, like por/orps/orpd.

The SSEDomainFix pass tries to minimize the number of domain crossings by
changing between equvivalent opcodes where possible.

This is a work in progress, in particular the pass doesn't do anything yet. SSE
instructions are tagged with their execution domain in TableGen using the last
two bits of TSFlags. Note that not all instructions are tagged correctly. Life
just isn't that simple.

The SSE execution domain issue is very similar to the ARM NEON/VFP pipeline
issue handled by NEONMoveFixPass. This pass may become target independent to
handle both.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99524 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25 17:25:00 +00:00
Johnny Chen
e4614f7e84 Added a new instruction class NVDupLane to be inherited by VDUPLND and VDUPLNQ,
instead of the current N2V.  Format of NVDupLane instances are set to NEONFrm
currently.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99518 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25 17:01:27 +00:00
Bob Wilson
86afec7730 Reapply Kevin's change 94440, now that Chris has fixed the limitation on
opcode values fitting in one byte (svn r99494).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99514 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25 16:36:14 +00:00
Daniel Dunbar
60dadb64a5 Sketch a few Clang release notes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99512 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25 16:09:18 +00:00
Devang Patel
2ddefecfa0 Add comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99507 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25 15:09:44 +00:00
John Criswell
52c02866ba Fixed spurious warning problem noticed by Daniel Dunbar. The configure script
now configures prerequisite projects individually but also ignores them in the
big project switch statement to avoid the incorrect warning.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99506 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25 13:59:09 +00:00
Daniel Dunbar
8fb040308c MC/Mach-O: Switch to MCSectionData::getOrdinal.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99504 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25 08:08:54 +00:00
Evan Cheng
4ec9bd9a6f Scheduler assumes SDDbgValue nodes are in source order. That's true currently. But add an assertion to verify it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99501 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25 07:16:57 +00:00
Daniel Dunbar
5a6e97a7e4 MC: Explicity track section and fragment ordinals.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99500 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25 07:10:11 +00:00
Daniel Dunbar
b026d64bf2 Fix -Asserts warning.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99499 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25 07:10:05 +00:00
Daniel Dunbar
f104f5b17a lit: Add LitTestCase and lit.load_test_suite, for adapting lit based suites for
use with Python's unittest.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99498 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25 07:10:01 +00:00
Chris Lattner
d5d5a3dcba Change tblgen to emit FOOISD opcode names as two
bytes instead of one byte.  This is important because
we're running up to too many opcodes to fit in a byte
and it is aggrevated by FIRST_TARGET_MEMORY_OPCODE
making the numbering sparse.  This just bites the
bullet and bloats out the table.  In practice, this
increases the size of the x86 isel table from 74.5K
to 76K.  I think we'll cope :)

This fixes rdar://7791648


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99494 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25 06:33:05 +00:00
Devang Patel
d4c6c3a7c3 Fix typo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99493 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25 06:26:14 +00:00
Jakob Stoklund Olesen
d1baa252c4 Fix evil TableGen bug in template parameters with defaults.
If a TableGen class has an initializer expression containing an X.Y subexpression,
AND X depends on template parameters,
AND those template parameters have defaults,
AND some parameters with defaults are beyond position 1,
THEN parts of the initializer expression are evaluated prematurely with the default values when the first explicit template parameter is substituted, before the remaining explicit template parameters have been substituted.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99492 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25 06:23:34 +00:00
Devang Patel
f906cb933e Include isFunctionLocal while calculating folding node set profile for a MDNode.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99490 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25 06:04:47 +00:00
Evan Cheng
167bda4baa Remove a fixme that doesn't make sense any more.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99489 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25 06:02:53 +00:00
Chris Lattner
219d77430b fix PR6642, GVN forwarding from memset to load of the base of the memset.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99488 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25 05:58:19 +00:00
Evan Cheng
c388ace6f9 Make sure SDDbgValue.Invalid is initialized to false by all the constructors.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99487 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25 05:50:26 +00:00
Chris Lattner
589ad5d8c2 eliminate a bunch more parallels now that scheduling
handles dead implicit results more aggressively.  More
to come, I think this is now just a data entry problem.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99486 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25 05:44:01 +00:00
Chris Lattner
47cdf4abff Make the NDEBUG assertion stronger and more clear what is
happening.

Enhance scheduling to set the DEAD flag on implicit defs
more aggressively.  Before, we'd set an implicit def operand
to dead if it were present in the SDNode corresponding to
the machineinstr but had no use.  Now we do it in this case
AND if the implicit def does not exist in the SDNode at all.

This exposes a couple of problems: one is the FIXME, which
causes a live intervals crash on CodeGen/X86/sibcall.ll.
The second is that it makes machinecse and licm more 
aggressive (which is a good thing) but also exposes a case
where licm hoists a set0 and then it doesn't get resunk.

Talking to codegen folks about both these issues, but I need
this patch in in the meantime.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99485 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25 05:40:48 +00:00
Devang Patel
ea7b6bb323 Include isFunctionLocal while calculating folding node set provide for a MDNode.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99484 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25 05:36:13 +00:00
Eric Christopher
f27e6088a3 Reapply r99451 with a fix to move the NoInline check to the cost functions
instead of InlineFunction.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99483 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25 04:49:10 +00:00
Chris Lattner
3d7d07ef03 reapply 99444/99445, which I speculatively reverted in
r99453.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99482 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25 04:41:16 +00:00
Daniel Dunbar
5d428511ca MC: Route access to SectionData offset and file size through MCAsmLayout.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99474 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25 02:00:07 +00:00
Daniel Dunbar
432cd5fd9b MC: Route access to Fragment offset and effective size through MCAsmLayout.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99473 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25 02:00:02 +00:00
Eric Christopher
4750cb9da9 Make sure this runs in 64-bit only, 32-bit won't produce the correct stores.
Fariborz please review and make sure this is what you meant.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99472 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25 01:46:07 +00:00
Evan Cheng
bfcb305189 Change how dbg_value sdnodes are converted into machine instructions. Their placement should be determined by the relative order of incoming llvm instructions. The scheduler will now use the SDNode ordering information to determine where to insert them. A dbg_value instruction is inserted after the instruction with the last highest source order and before the instruction with the next highest source order. It will optimize the placement by inserting right after the instruction that produces the value if they have consecutive order numbers.
Here is a theoretical example that illustrates why the placement is important.

tmp1 = 
store tmp1 -> x
...
tmp2 = add ...
...
call
...
store tmp2 -> x

Now mem2reg comes along:

tmp1 = 
dbg_value (tmp1 -> x)
...
tmp2 = add ...
...
call
...
dbg_value (tmp2 -> x)

When the debugger examine the value of x after the add instruction but before the call, it should have the value of tmp1.

Furthermore, for dbg_value's that reference constants, they should not be emitted at the beginning of the block (since they do not have "producers").

This patch also cleans up how SDISel manages DbgValue nodes. It allow a SDNode to be referenced by multiple SDDbgValue nodes. When a SDNode is deleted, it uses the information to find the SDDbgValues and invalidate them. They are not deleted until the corresponding SelectionDAG is destroyed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99469 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25 01:38:16 +00:00
Daniel Dunbar
7c3d45a03e MC: Eliminate MC{Fragment,{Section,Symbol}Data}::getAddress.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99467 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-25 01:03:24 +00:00