Commit Graph

326 Commits

Author SHA1 Message Date
Craig Topper aa741abfc5 [TwoAddressInstruction] Fix typo in comment. NFC
llvm-svn: 294083
2017-02-04 01:58:10 +00:00
Diana Picus 116bbab4e4 [CodeGen] Rename MachineInstrBuilder::addOperand. NFC
Rename from addOperand to just add, to match the other method that has been
added to MachineInstrBuilder for adding more than just 1 operand.

See https://reviews.llvm.org/D28057 for the whole discussion.

Differential Revision: https://reviews.llvm.org/D28556

llvm-svn: 291891
2017-01-13 09:58:52 +00:00
Craig Topper 7600794dde [TwoAddressInstruction] When commuting an instruction don't assume that the destination register is operand 0. Pass it from the caller.
In practice it probably is 0 so this may not be a functional change.

llvm-svn: 281180
2016-09-11 22:10:42 +00:00
Craig Topper 1f81deee1f [CodeGen] Make the TwoAddressInstructionPass check if the instruction is commutable before calling findCommutedOpIndices for every operand. Also make sure the operand is a register before each call to save some work on commutable instructions that might have an operand.
llvm-svn: 281158
2016-09-11 06:00:15 +00:00
Matt Arsenault f403df38eb Replace subregister uses when processing tied operands
This was for some reason skipping operands that are subregisters
instead of keeping the same subregister index.

v_movreld_b32 expects src0 to be the subregister of the tied
super register use/def.

e.g.

v_movreld_b32 v0, v9, <imp-def, tied3> v[0:3], <imp-use, tied2> v[0:3]

was being replaced with

v[4:7] = copy v[0:3]
v_movreld_b32 v0, v9, <imp-def, tied3> v[4:7], <imp-use, tied2> v[4:7],

which really writes to v[0:3]

llvm-svn: 279804
2016-08-26 06:31:32 +00:00
Michael Kuperstein e36d7716c3 Make TwoAddressInstructionPass::rescheduleMIBelowKill subreg-aware
This fixes PR28824.

Differential Revision: https://reviews.llvm.org/D23220

llvm-svn: 278370
2016-08-11 17:38:33 +00:00
Duncan P. N. Exon Smith 50d307680f CodeGen: Avoid iterator conversions in TwoAddressInstructionPass, NFC
Mostly through preferring MachineInstr&, avoid implicit conversions from
iterator to pointer.

Although this may bitrot (since there are other uses blocking me from
removing the implicit operator), this removes the last of the implicit
conversions from MachineInstrBundleIterator to MachineInstr* in the
LLVMCodeGen build target.

llvm-svn: 274893
2016-07-08 17:43:08 +00:00
Duncan P. N. Exon Smith d26fdc83c9 CodeGen: Use MachineInstr& in LiveVariables API, NFC
Change all the methods in LiveVariables that expect non-null
MachineInstr* to take MachineInstr& and update the call sites.  This
clarifies the API, and designs away a class of iterator to pointer
implicit conversions.

llvm-svn: 274319
2016-07-01 01:51:32 +00:00
Duncan P. N. Exon Smith 9cfc75c214 CodeGen: Use MachineInstr& in TargetInstrInfo, NFC
This is mostly a mechanical change to make TargetInstrInfo API take
MachineInstr& (instead of MachineInstr* or MachineBasicBlock::iterator)
when the argument is expected to be a valid MachineInstr.  This is a
general API improvement.

Although it would be possible to do this one function at a time, that
would demand a quadratic amount of churn since many of these functions
call each other.  Instead I've done everything as a block and just
updated what was necessary.

This is mostly mechanical fixes: adding and removing `*` and `&`
operators.  The only non-mechanical change is to split
ARMBaseInstrInfo::getOperandLatencyImpl out from
ARMBaseInstrInfo::getOperandLatency.  Previously, the latter took a
`MachineInstr*` which it updated to the instruction bundle leader; now,
the latter calls the former either with the same `MachineInstr&` or the
bundle leader.

As a side effect, this removes a bunch of MachineInstr* to
MachineBasicBlock::iterator implicit conversions, a necessary step
toward fixing PR26753.

Note: I updated WebAssembly, Lanai, and AVR (despite being
off-by-default) since it turned out to be easy.  I couldn't run tests
for AVR since llc doesn't link with it turned on.

llvm-svn: 274189
2016-06-30 00:01:54 +00:00
Matthias Braun f84547c6e0 LiveIntervalAnalysis: Remove LiveVariables requirement
This requirement was a huge hack to keep LiveVariables alive because it
was optionally used by TwoAddressInstructionPass and PHIElimination.
However we have AnalysisUsage::addUsedIfAvailable() which we can use in
those passes.

This re-applies r260806 with LiveVariables manually added to PowerPC to
hopefully not break the stage 2 bots this time.

llvm-svn: 267954
2016-04-28 23:42:51 +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
Duncan P. N. Exon Smith be8f8c4478 CodeGen: Update LiveIntervalAnalysis API to use MachineInstr&, NFC
These parameters aren't expected to be null, so take them by reference.

llvm-svn: 262151
2016-02-27 20:14:29 +00:00
Duncan P. N. Exon Smith 3ac9cc6156 CodeGen: Take MachineInstr& in SlotIndexes and LiveIntervals, NFC
Take MachineInstr by reference instead of by pointer in SlotIndexes and
the SlotIndex wrappers in LiveIntervals.  The MachineInstrs here are
never null, so this cleans up the API a bit.  It also incidentally
removes a few implicit conversions from MachineInstrBundleIterator to
MachineInstr* (see PR26753).

At a couple of call sites it was convenient to convert to a range-based
for loop over MachineBasicBlock::instr_begin/instr_end, so I added
MachineBasicBlock::instrs.

llvm-svn: 262115
2016-02-27 06:40:41 +00:00
Matthias Braun ac697c5d8e Revert "LiveIntervalAnalysis: Remove LiveVariables requirement" and LiveIntervalTest
The commit breaks stage2 compilation on PowerPC. Reverting for now while
this is analyzed. I also have to revert the LiveIntervalTest for now as
that depends on this commit.

Revert "LiveIntervalAnalysis: Remove LiveVariables requirement"
This reverts commit r260806.
Revert "Remove an unnecessary std::move to fix -Wpessimizing-move warning."
This reverts commit r260931.
Revert "Fix typo in LiveIntervalTest"
This reverts commit r260907.
Revert "Add unittest for LiveIntervalAnalysis::handleMove()"
This reverts commit r260905.

llvm-svn: 261189
2016-02-18 05:21:43 +00:00
Matthias Braun bbb528f189 LiveIntervalAnalysis: Remove LiveVariables requirement
This requirement was a huge hack to keep LiveVariables alive because it
was optionally used by TwoAddressInstructionPass and PHIElimination.
However we have AnalysisUsage::addUsedIfAvailable() which we can use in
those passes.

llvm-svn: 260806
2016-02-13 04:35:31 +00:00
Eugene Zelenko ecefe5a81f Fix Clang-tidy readability-redundant-control-flow warnings; other minor fixes.
Differential revision: http://reviews.llvm.org/D16793

llvm-svn: 259539
2016-02-02 18:20:45 +00:00
Sanjay Patel 0b2a94916d use range-based for loops; NFCI
llvm-svn: 254453
2015-12-01 19:57:43 +00:00
Sanjay Patel b53791e5a7 don't repeat function/variable names in comments; NFC
llvm-svn: 254445
2015-12-01 19:32:35 +00:00
Sanjay Patel 96824deebc fix typo; NFC
llvm-svn: 254442
2015-12-01 19:19:18 +00:00
Duncan P. N. Exon Smith f1ff53ecc2 CodeGen: Remove implicit ilist iterator conversions, NFC
Finish removing implicit ilist iterator conversions from LLVMCodeGen.
I'm sure there are lots more of these in lib/CodeGen/*/.

llvm-svn: 249915
2015-10-09 22:56:24 +00:00
Craig Topper da5168b7ce Use range-based for loops. NFC.
llvm-svn: 249659
2015-10-08 06:06:42 +00:00
Craig Topper 2c4068f409 [TwoAddressInstructionPass] When looking for a 3 addr conversion after commuting, make sure regB has been updated to take into account the commute.
llvm-svn: 249378
2015-10-06 05:39:59 +00:00
Andrew Kaylor 16c4da03d5 Improved the interface of methods commuting operands, improved X86-FMA3 mem-folding&coalescing.
Patch by Slava Klochkov (vyacheslav.n.klochkov@intel.com)

Differential Revision: http://reviews.llvm.org/D11370

llvm-svn: 248735
2015-09-28 20:33:22 +00:00
NAKAMURA Takumi a9cb538a74 Reformat blank lines.
llvm-svn: 248263
2015-09-22 11:14:39 +00:00
NAKAMURA Takumi 84965031a7 Reformat comment lines.
llvm-svn: 248262
2015-09-22 11:14:12 +00:00