Commit Graph

1139 Commits

Author SHA1 Message Date
Krzysztof Parzyszek 0e7d2d339d [Hexagon] Define certain aliases for vector instructions
Specifically:
  Vd = #0   -> Vd = vxor(Vd, Vd)
  Vdd = #0  -> Vdd.w = vsub(Vdd.w, Vdd.w)
  Vdd = Vss -> Vdd = vcombine(Vss.H, Vss.L)

llvm-svn: 267901
2016-04-28 16:43:16 +00:00
Krzysztof Parzyszek e737b86f8c [Hexagon] Handle double-vector registers as new-value producers
Patch by Colin LeMahieu.

llvm-svn: 267897
2016-04-28 15:54:48 +00:00
Krzysztof Parzyszek efd72857a3 [RDF] Handle undefined registers in RDF copy propagation
When updating the graph, make sure that new uses without reaching defs
are handled correctly.

llvm-svn: 267891
2016-04-28 15:09:19 +00:00
Craig Topper 33772c5375 [CodeGen] Default CTTZ_ZERO_UNDEF/CTLZ_ZERO_UNDEF to Expand in TargetLoweringBase. This is what the majority of the targets want and removes a bunch of code. Set it to Legal explicitly in the few cases where that's the desired behavior.
llvm-svn: 267853
2016-04-28 03:34:31 +00:00
Colin LeMahieu a3782da3e3 [Hexagon] Merging nops in to previous packet rather than always creating a new one.
llvm-svn: 267798
2016-04-27 21:37:44 +00:00
Andrew Kaylor 5b444a21df Add optimization bisect opt-in calls for Hexagon passes
Differential Revision: http://reviews.llvm.org/D19509

llvm-svn: 267593
2016-04-26 19:46:28 +00:00
Krzysztof Parzyszek 3e28229000 [Hexagon] Few fixes for exception handling
llvm-svn: 267469
2016-04-25 21:05:19 +00:00
Krzysztof Parzyszek e8e754da74 [Hexagon] Register save/restore functions do not follow regular conventions
Do not mark them as modifying any of the volatile registers by default.

llvm-svn: 267433
2016-04-25 17:49:44 +00:00
Krzysztof Parzyszek e6ee481bdf [Hexagon] Correctly set "Flags" in ELF header
llvm-svn: 267397
2016-04-25 12:49:47 +00:00
Craig Topper 855d182656 Fix a couple assertions that can never fire because they just contained the text string which always evaluates to true. Add a ! so they'll evaluate to false.
llvm-svn: 267312
2016-04-24 02:01:25 +00:00
Craig Topper 6e6a1f0a5b [Hexagon] Set ctlz_zero_undef/cttz_zero_undef to Expand so LegalizeDAG will convert them to ctlz/cttz. Remove the now unneccessary isel patterns. NFC
llvm-svn: 267266
2016-04-23 02:49:31 +00:00
Krzysztof Parzyszek 040bb35d9d [Hexagon] Use common Pat classes for selecting code for intrinsics
llvm-svn: 267178
2016-04-22 18:05:55 +00:00
Krzysztof Parzyszek c06e79356f [Hexagon] Properly close live range in HexagonBlockRanges
llvm-svn: 267173
2016-04-22 17:27:22 +00:00
Krzysztof Parzyszek 9062b75a93 [Hexagon] Teach mux expansion how to deal with undef predicates
llvm-svn: 267165
2016-04-22 16:47:01 +00:00
Krzysztof Parzyszek e2c6405708 [Hexagon] Add definitions for trap/pause instructions
Also add tests for other instructions from HexagonSystemInst.td.

llvm-svn: 267162
2016-04-22 16:25:00 +00:00
Krzysztof Parzyszek adf02ae540 [Hexagon] Properly recognize register alt names
llvm-svn: 267038
2016-04-21 19:49:53 +00:00
Krzysztof Parzyszek 5de5910d7d [Hexagon] Expand handling of the small-data/bss section
llvm-svn: 267034
2016-04-21 18:56:45 +00:00
Krzysztof Parzyszek 64d4e2bc0d [Hexagon] Add -mv.. options to override CPU selection
This is for compatibility with scripts that use -mv5, etc. with the
assembler.

llvm-svn: 266918
2016-04-20 21:17:40 +00:00
Krzysztof Parzyszek 5626703837 [Hexagon] Fix handling of lcomm directive
Patch by Colin LeMahieu.

llvm-svn: 266882
2016-04-20 15:54:13 +00:00
Krzysztof Parzyszek 16331f0aa0 [RDF] Consider register as live if any alias is live
This only affects the recomputation of kill flags.

llvm-svn: 266875
2016-04-20 14:33:23 +00:00
Krzysztof Parzyszek 3af70c126d [Hexagon] Fix operand swapping in HexagonPeephole
Also, disable zero- and size-extend optimizations for now.

llvm-svn: 266821
2016-04-19 21:36:24 +00:00
Krzysztof Parzyszek 5ffee8d829 [Hexagon] Fix printing the address operand of S2_storerinewabs
llvm-svn: 266811
2016-04-19 20:20:33 +00:00
Krzysztof Parzyszek 7b59ae28aa [Hexagon] Implement branch relaxation
Patch by Sirish Pande.

llvm-svn: 266792
2016-04-19 18:30:18 +00:00
Mehdi Amini b550cb1750 [NFC] Header cleanup
Removed some unused headers, replaced some headers with forward class declarations.

Found using simple scripts like this one:
clear && ack --cpp -l '#include "llvm/ADT/IndexedMap.h"' | xargs grep -L 'IndexedMap[<]' | xargs grep -n --color=auto 'IndexedMap'

Patch by Eugene Kosov <claprix@yandex.ru>

Differential Revision: http://reviews.llvm.org/D19219

From: Mehdi Amini <mehdi.amini@apple.com>
llvm-svn: 266595
2016-04-18 09:17:29 +00:00
Craig Topper 18e69f4f63 Use MVT instead of EVT to remove a bunch of unnecessary calls to getSimpleVT.
llvm-svn: 266414
2016-04-15 06:20:21 +00:00
Derek Schuff 1dbf7a571f Add MachineFunctionProperty checks for AllVRegsAllocated for target passes
Summary:
This adds the same checks that were added in r264593 to all
target-specific passes that run after register allocation.

Reviewers: qcolombet

Subscribers: jyknight, dsanders, llvm-commits

Differential Revision: http://reviews.llvm.org/D18525

llvm-svn: 265313
2016-04-04 17:09:25 +00:00
Hans Wennborg e1a2e90ffa Change eliminateCallFramePseudoInstr() to return an iterator
This will become necessary in a subsequent change to make this method
merge adjacent stack adjustments, i.e. it might erase the previous
and/or next instruction.

It also greatly simplifies the calls to this function from Prolog-
EpilogInserter. Previously, that had a bunch of logic to resume iteration
after the call; now it just continues with the returned iterator.

Note that this changes the behaviour of PEI a little. Previously,
it attempted to re-visit the new instruction created by
eliminateCallFramePseudoInstr(). That code was added in r36625,
but I can't see any reason for it: the new instructions will obviously
not be pseudo instructions, they will not have FrameIndex operands,
and we have already accounted for the stack adjustment.

Differential Revision: http://reviews.llvm.org/D18627

llvm-svn: 265036
2016-03-31 18:33:38 +00:00
Krzysztof Parzyszek 2d65ea74dc [Hexagon] Improve handling of unaligned vector loads and stores
llvm-svn: 264584
2016-03-28 15:43:03 +00:00
Krzysztof Parzyszek bb63f66686 [Hexagon] Only use restore functions for single register at -Oz
llvm-svn: 264581
2016-03-28 14:52:21 +00:00
Krzysztof Parzyszek a34901aae9 [Hexagon] Speed up frame lowering when no optimizations are enabled
- Do not optimize stack slots in optnone functions.
- Get aligned-base register from HexagonMachineFunctionInfo instead of
  looking for ALIGNA instruction in the function's body.

llvm-svn: 264580
2016-03-28 14:42:03 +00:00
Krzysztof Parzyszek 01598de3ec [Hexagon] Be sure to treat subregisters of a CSR as CSRs as well
llvm-svn: 264331
2016-03-24 20:31:41 +00:00
Krzysztof Parzyszek c9d4caa32c [Hexagon] Add support for run-time stack overflow checking
Patch by Sundeep Kushwaha.

llvm-svn: 264328
2016-03-24 20:20:07 +00:00
Krzysztof Parzyszek 181fdbd174 [Hexagon] Generate PIC-specific versions of save/restore routines
In PIC mode, the registers R14, R15 and R28 are reserved for use by
the PLT handling code. This causes all functions to clobber these
registers. While this is not new for regular function calls, it does
also apply to save/restore functions, which do not follow the standard
ABI conventions with respect to the volatile/non-volatile registers.

Patch by Jyotsna Verma.

llvm-svn: 264324
2016-03-24 19:18:48 +00:00
Krzysztof Parzyszek b14f4fd0de [Hexagon] Add handling fixups and instruction relaxation
llvm-svn: 263981
2016-03-21 20:27:17 +00:00
Krzysztof Parzyszek c6f1e1a709 [Hexagon] Properly encode registers in duplex instructions
llvm-svn: 263980
2016-03-21 20:13:33 +00:00
Krzysztof Parzyszek 6514a887f4 [Hexagon] Fix reserving emergency spill slots for register scavenger
- R10 and R11 are not reserved registers.
- Check for reserved registers when finding unused caller-saved registers.

llvm-svn: 263977
2016-03-21 19:57:08 +00:00
James Y Knight f44fc5219f Tweak some atomics functions in preparation for larger changes; NFC.
- Rename getATOMIC to getSYNC, as llvm will soon be able to emit both
  '__sync' libcalls and '__atomic' libcalls, and this function is for
  the '__sync' ones.

- getInsertFencesForAtomic() has been replaced with
  shouldInsertFencesForAtomic(Instruction), so that the decision can be
  made per-instruction. This functionality will be used soon.

- emitLeadingFence/emitTrailingFence are no longer called if
  shouldInsertFencesForAtomic returns false, and thus don't need to
  check the condition themselves.

llvm-svn: 263665
2016-03-16 22:12:04 +00:00
Colin LeMahieu bb0cdfb9f7 [Hexagon] Adding missing break in switch statement. Extra operands would have been appended to the end.
llvm-svn: 263657
2016-03-16 20:00:38 +00:00
Sanjay Patel 7506852709 [DAG] use !isUndef() ; NFCI
llvm-svn: 263453
2016-03-14 18:09:43 +00:00
Sanjay Patel 5719584129 [DAG] use isUndef() ; NFCI
llvm-svn: 263448
2016-03-14 17:28:46 +00:00
Krzysztof Parzyszek 51155fc0d1 [Hexagon] Fix lowering of calls with the return type of i1
This fixes an assertion in test/CodeGen/Hexagon/ifcvt-edge-weight.ll
when run with -debug-only=isel

llvm-svn: 262726
2016-03-04 17:38:05 +00:00
Colin LeMahieu 2d497a0078 [NFC] Convert tabs to spaces.
llvm-svn: 262411
2016-03-01 22:05:03 +00:00
Colin LeMahieu 5cb6eea664 [Hexagon] Modifying r262258 to only be in effect in the hand assembler path, not the integrated assembler.
llvm-svn: 262400
2016-03-01 21:37:41 +00:00
Matthias Braun 17cb57995e TableGen: Check scheduling models for completeness
TableGen checks at compiletime that for scheduling models with
"CompleteModel = 1" one of the following holds:

- Is marked with the hasNoSchedulingInfo flag
- The instruction is a subclass of Sched
- There are InstRW definitions in the scheduling model

Typical steps necessary to complete a model:

- Ensure all pseudo instructions that are expanded before machine
  scheduling (usually everything handled with EmitYYY() functions in
  XXXTargetLowering).
- If a CPU does not support some instructions mark the corresponding
  resource unsupported: "WriteRes<WriteXXX, []> { let Unsupported = 1; }".
- Add missing scheduling information.

Differential Revision: http://reviews.llvm.org/D17747

llvm-svn: 262384
2016-03-01 20:03:21 +00:00
Colin LeMahieu ab9eca4d9f [Hexagon] As a size optimization, not lazy extending TPREL or DTPREL variants since they're usually in range.
llvm-svn: 262258
2016-02-29 21:21:56 +00:00
Colin LeMahieu 9e5a9c32db [Hexagon] Missed member initialization causing ubsan failure.
llvm-svn: 262252
2016-02-29 20:42:25 +00:00
Colin LeMahieu b9f1eae328 [Hexagon] Setting sign mismatch flag on expression instead of using bit tricks.
llvm-svn: 262243
2016-02-29 19:17:56 +00:00
Colin LeMahieu 73cd686ce1 [Hexagon] Using MustExtend flag on expression instead of passing around bools.
llvm-svn: 262238
2016-02-29 18:39:51 +00:00
Duncan P. N. Exon Smith fd8cc23220 CodeGen: Change MachineInstr to use MachineInstr&, NFC
Change MachineInstr API to prefer MachineInstr& over MachineInstr*
whenever the parameter is expected to be non-null.  Slowly inching
toward being able to fix PR26753.

llvm-svn: 262149
2016-02-27 20:01:33 +00:00
Duncan P. N. Exon Smith 5702287809 CodeGen: Update DFAPacketizer API to take MachineInstr&, NFC
In all but one case, change the DFAPacketizer API to take MachineInstr&
instead of MachineInstr*.  In DFAPacketizer::endPacket(), take
MachineBasicBlock::iterator.  Besides cleaning up the API, this is in
search of PR26753.

llvm-svn: 262142
2016-02-27 19:09:00 +00:00