Commit Graph

570 Commits

Author SHA1 Message Date
Kalle Raiskila
2d25d247bd Add branch hinting for SPU.
The implemented algorithm is overly simplistic (just speculate all branches are
taken)- this is work in progress.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126651 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-28 14:08:24 +00:00
Owen Anderson
95771afbfd Allow targets to specify a the type of the RHS of a shift parameterized on the type of the LHS.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126518 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-25 21:41:48 +00:00
Devang Patel
68e6beeccc Revert r124611 - "Keep track of incoming argument's location while emitting LiveIns."
In other words, do not keep track of argument's location.  The debugger (gdb) is not prepared to see line table entries for arguments. For the debugger, "second" line table entry marks beginning of function body.
This requires some coordination with debugger to get this working. 
 - The debugger needs to be aware of prolog_end attribute attached with line table entries.
 - The compiler needs to accurately mark prolog_end in line table entries (at -O0 and at -O1+)



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126155 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-21 23:21:26 +00:00
Oscar Fuentes
00d78f1348 Use explicit add_subdirectory's for LLVM target sublibraries instead
of testing for its presence at cmake time.

This way the build automatically regenerates the makefiles when a svn
update brings in a new sublibrary.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126068 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-20 02:55:27 +00:00
Devang Patel
e9a7ea6865 Keep track of incoming argument's location while emitting LiveIns.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124611 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-31 21:38:14 +00:00
David Greene
9f08f60993 Fix vector sign extend to put the source and destination types in the
correct places.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124601 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-31 20:39:01 +00:00
Ted Kremenek
584520e8e2 Null initialize a few variables flagged by
clang's -Wuninitialized-experimental warning.
While these don't look like real bugs, clang's
-Wuninitialized-experimental analysis is stricter
than GCC's, and these fixes have the benefit
of being general nice cleanups.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124073 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-23 17:05:06 +00:00
Kalle Raiskila
5106b84506 Allow sign-extending of i8 and i16 to i128 on SPU.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123912 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-20 15:49:06 +00:00
Jeffrey Yasskin
955ed73d12 Remove unused variables found by gcc-4.6's -Wunused-but-set-variable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123707 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-18 00:51:23 +00:00
Kalle Raiskila
9dcb98cbe7 Split up RotateShift itinerary in SPU.
'rotq*' and 'shlq*' instructions go to the odd pipeline,
wheras the inter-vector equivalents 'rot*', 'shl*' go 
to the even.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123622 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-17 13:33:19 +00:00
Kalle Raiskila
8702e8be8d Don't crash SPU BE with memory accesses with big alignmnet.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123620 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-17 11:59:20 +00:00
Jakob Stoklund Olesen
4f28c1c714 Teach frame lowering to ignore debug values after the terminators.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123399 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-13 21:28:52 +00:00
Kalle Raiskila
b9505f6bed Fix a thinko in 123226 that caused test failures on "other" platforms.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123229 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-11 11:27:56 +00:00
Kalle Raiskila
76020ed6f3 Add a "nop filler" pass to SPU.
Filling no-ops is done just before emitting of assembly,
when the instruction stream is final. No-ops are inserted
to align the instructions so the dual-issue of the pipeline
is utilized. This speeds up generated code with a minimum of 
1% on a select set of algorithms.

This pass may be redundant if the instruction scheduler and 
all subsequent passes that modify the instruction stream 
(prolog+epilog inserter, register scavenger, are there others?)
are made aware of the instruction alignments.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123226 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-11 09:07:54 +00:00
Anton Korobeynikov
7af6fad0a7 Update CMake stuff
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123171 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-10 12:39:23 +00:00
Anton Korobeynikov
16c29b5f28 Rename TargetFrameInfo into TargetFrameLowering. Also, put couple of FIXMEs and fixes here and there.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123170 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-10 12:39:04 +00:00
Andrew Trick
2da8bc8a5f Various bits of framework needed for precise machine-level selection
DAG scheduling during isel. Most new functionality is currently
guarded by -enable-sched-cycles and -enable-sched-hazard.

Added InstrItineraryData::IssueWidth field, currently derived from
ARM itineraries, but could be initialized differently on other targets.

Added ScheduleHazardRecognizer::MaxLookAhead to indicate whether it is
active, and if so how many cycles of state it holds.

Added SchedulingPriorityQueue::HasReadyFilter to allowing gating entry
into the scheduler's available queue.

ScoreboardHazardRecognizer now accesses the ScheduleDAG in order to
get information about it's SUnits, provides RecedeCycle for bottom-up
scheduling, correctly computes scoreboard depth, tracks IssueCount, and
considers potential stall cycles when checking for hazards.

ScheduleDAGRRList now models machine cycles and hazards (under
flags). It tracks MinAvailableCycle, drives the hazard recognizer and
priority queue's ready filter, manages a new PendingQueue, properly
accounts for stall cycles, etc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122541 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-24 05:03:26 +00:00
Andrew Trick
6e8f4c4048 whitespace
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122539 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-24 04:28:06 +00:00
Chris Lattner
036609bd7d Flag -> Glue, the ongoing saga
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122513 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-23 18:28:41 +00:00
Chris Lattner
f1b4eafbfe rename MVT::Flag to MVT::Glue. "Flag" is a terrible name for
something that just glues two nodes together, even if it is
sometimes used for flags.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122310 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-21 02:38:05 +00:00
Kalle Raiskila
18aa393153 Don't feed 19 bit immediates to ILA.
Patch (slightly modified) by Visa Putkinen.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122052 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-17 09:36:09 +00:00
Kalle Raiskila
7d17097e4a Dont' feed ILA two inputs - it takes just one.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121372 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-09 16:17:31 +00:00
Kalle Raiskila
9363f739cd Handle lshr for i128 correctly on SPU also when
shiftamount > 7.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120288 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-29 14:44:28 +00:00
Kalle Raiskila
c2ebfd454c Enable PostRA scheduling for SPU.
This speeds up selected test cases with up to
5% - no slowdowns observed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120286 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-29 10:30:25 +00:00
Kalle Raiskila
b00f24b13c Allow machine LICM to do its job on SPU.
-return a sensible value for register pressure
-add pattern to 'ila' instrucion


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120285 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-29 10:08:09 +00:00
Kalle Raiskila
11edd0cedc Add missing i128 case.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120284 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-29 09:36:26 +00:00
Anton Korobeynikov
94c5ae0875 Move more PEI-related hooks to TFI
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120229 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-27 23:05:25 +00:00
Kalle Raiskila
7de8101668 Use i8 as SETCC result type for i1 in SPU.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120092 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-24 12:59:16 +00:00
Kalle Raiskila
702a4046a9 Allow for 'fcmp ogt' in SPU.
Fix by Visa Putkinen!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120090 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-24 11:42:17 +00:00
Kalle Raiskila
0cc5b1f60e Division by pow-of-2 is not cheap on SPU, do it with
shifts.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120022 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-23 13:27:59 +00:00
Wesley Peck
bf17cfa3f9 Renaming ISD::BIT_CONVERT to ISD::BITCAST to better reflect the LLVM IR concept.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119990 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-23 03:31:01 +00:00
Kalle Raiskila
d87e571e62 Fix a bug with extractelement on SPU.
In the attached testcase, the element was
never extracted (missing rotate).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119973 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-22 16:28:26 +00:00
Anton Korobeynikov
d9e3385ced Move getInitialFrameState() to TargetFrameInfo
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119754 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-18 23:25:52 +00:00
Anton Korobeynikov
d0c3817669 Move hasFP() and few related hooks to TargetFrameInfo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119740 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-18 21:19:35 +00:00
Rafael Espindola
5c0556341e Change CodeGen to use .loc directives. This produces a lot more readable output
and testing is easier.  A good example is the unknown-location.ll test that
now can just look for ".loc 1 0 0".  We also don't use a DW_LNE_set_address for
every address change anymore.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119613 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-18 02:04:25 +00:00
Kalle Raiskila
38e0c9ba57 Improve code layout, mostly indentation.
No functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119142 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-15 10:12:32 +00:00
Anton Korobeynikov
a460e4a142 Attempt to unbreak cmake-based builds
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119098 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-15 00:48:12 +00:00
Anton Korobeynikov
3346491223 First step of huge frame-related refactoring: move emit{Prologue,Epilogue} out of TargetRegisterInfo to TargetFrameInfo, which is definitely much better suitable place
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119097 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-15 00:06:54 +00:00
Chris Lattner
1139691e3a move all the target's asmprinters into the main target. The piece
that should be split out is the InstPrinter (if a target is mc'ized).
This change makes all the targets be consistent.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119056 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-14 18:43:56 +00:00
Kalle Raiskila
7ea1ab5f41 Fix memory access lowering on SPU, adding
support for the case where alignment<value size.

These cases were silently miscompiled before this patch.
Now they are overly verbose -especially storing is- and
any front-end should still avoid misaligned memory 
accesses as much as possible. The bit juggling algorithm
added here probably has some room for improvement still.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118889 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-12 10:14:03 +00:00
Duncan Sands
cdfad36b40 Simplify uses of MVT and EVT. An MVT can be compared directly
with a SimpleValueType, while an EVT supports equality and
inequality comparisons with SimpleValueType.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118169 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-03 12:17:33 +00:00
John Thompson
44ab89eb37 Inline asm multiple alternative constraints development phase 2 - improved basic logic, added initial platform support.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117667 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-29 17:29:13 +00:00
Kalle Raiskila
505faa6b12 Change v64 datalayout in SPU.
The SPU ABI does not mention v64, and all examples
in C suggest v128 are treated similarily to arrays, 
we use array alignment for v64 too. This makes the 
alignment of e.g. [2 x <2 x i32>] behave "intuitively"
and similar to as if the elements were e.g. i32s.

This also makes an "unaligned store" test to be 
aligned, with different (but functionally equivalent)
code generated.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117360 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-26 10:45:47 +00:00
Kalle Raiskila
940e7965f1 Improve lowering of sext to i128 on SPU.
The old algorithm inserted a 'rotqmbyi' instruction which was
both redundant and wrong - it made shufb select bytes from the
wrong end of the input quad.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116701 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-18 09:34:19 +00:00
Kalle Raiskila
218c98c284 Add the missing cases to the type->registerclass conversion function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115921 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-07 16:32:42 +00:00
Kalle Raiskila
8a52fa674b Implement two virtual functions in SPUTargetLowering.
Before the implementation of isLegalAddressingMode, some rare cases 
of code were miscompiled if optimized with the LoopStrengthReduce pass.
It is unclear (to me) if LSR is "allowed" to produce wrong code with a 
bad TargetLowering, or if the bug is elsewhere and this patch just 
hides it.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115919 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-07 16:24:35 +00:00
Kalle Raiskila
8258135c90 Zap some redundant 'ori $?, $?, 0' from SPU.
Also remove some code that died in the process.
One now non-existant ori is checked for.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115306 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-01 09:20:01 +00:00
Evan Cheng
63d66eed16 Add support to model pipeline bypass / forwarding.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115005 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-28 23:50:49 +00:00
Oscar Fuentes
3609eb0de2 Removed a bunch of unnecessary target_link_libraries.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114999 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-28 22:39:14 +00:00
Chris Lattner
52a261b3c1 fix a long standing wart: all the ComplexPattern's were being
passed the root of the match, even though only a few patterns
actually needed this (one in X86, several in ARM [which should
be refactored anyway], and some in CellSPU that I don't feel 
like detangling).   Instead of requiring all ComplexPatterns to
take the dead root, have targets opt into getting the root by
putting SDNPWantRoot on the ComplexPattern.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@114471 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-21 20:31:19 +00:00