oota-llvm.git
7 years ago[PBQP Regalloc] Pre-spill vregs that have no legal physregs.
Lang Hames [Tue, 3 Feb 2015 06:14:06 +0000 (06:14 +0000)]
[PBQP Regalloc] Pre-spill vregs that have no legal physregs.

The PBQP::RegAlloc::MatrixMetadata class assumes that matrices have at least two
rows/columns (for the spill option plus at least one physreg). This patch
ensures that that invariant is met by pre-spilling vregs that have no physreg
options so that no node (and no corresponding edges) need be added to the PBQP
graph.

This fixes a bug in an out-of-tree target that was identified by Jonas Paulsson.
Thanks for tracking this down Jonas!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227942 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoResurrect initializers for NumLoads and NumStores in LoopVectorizationLegality to...
NAKAMURA Takumi [Tue, 3 Feb 2015 03:55:06 +0000 (03:55 +0000)]
Resurrect initializers for NumLoads and NumStores in LoopVectorizationLegality to suppress undefined behavior.

FIXME: Shall they be managed in LAA?

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227940 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoReally, really, really don't build llvm-pdbdump on MSVC < 2013.
Andrew Kaylor [Tue, 3 Feb 2015 03:08:25 +0000 (03:08 +0000)]
Really, really, really don't build llvm-pdbdump on MSVC < 2013.

There was a typo in the last attempt.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227937 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoPropagate a better error message to the C api.
Rafael Espindola [Tue, 3 Feb 2015 01:53:03 +0000 (01:53 +0000)]
Propagate a better error message to the C api.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227934 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoUse a non-fatal diag handler in the C API. FIxes PR22368.
Rafael Espindola [Tue, 3 Feb 2015 00:49:57 +0000 (00:49 +0000)]
Use a non-fatal diag handler in the C API. FIxes PR22368.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227903 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoInstrProf: Simplify RawCoverageMappingReader's API slightly
Justin Bogner [Tue, 3 Feb 2015 00:20:11 +0000 (00:20 +0000)]
InstrProf: Simplify RawCoverageMappingReader's API slightly

This is still kind of a weird API, but dropping the (partial) update
of the passed in CoverageMappingRecord makes it a little easier to
understand and use.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227900 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoInstrProf: Simplify some logic by using ArrayRef::slice (NFC)
Justin Bogner [Tue, 3 Feb 2015 00:00:00 +0000 (00:00 +0000)]
InstrProf: Simplify some logic by using ArrayRef::slice (NFC)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227898 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoRevert part of r227437 as it was unnecessary. Thanks to echristo for
Alex Rosenberg [Mon, 2 Feb 2015 23:58:54 +0000 (23:58 +0000)]
Revert part of r227437 as it was unnecessary. Thanks to echristo for
pointing this out.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227897 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoMigrate to using the subtarget on the machine function and update
Eric Christopher [Mon, 2 Feb 2015 23:03:45 +0000 (23:03 +0000)]
Migrate to using the subtarget on the machine function and update
all uses.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227891 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoUse the function template getSubtarget off of the machine function,
Eric Christopher [Mon, 2 Feb 2015 23:03:43 +0000 (23:03 +0000)]
Use the function template getSubtarget off of the machine function,
and use it in all locations.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227890 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoUse the cached subtarget on the MachineFunction.
Eric Christopher [Mon, 2 Feb 2015 22:40:56 +0000 (22:40 +0000)]
Use the cached subtarget on the MachineFunction.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227885 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoRemove dead header.
Eric Christopher [Mon, 2 Feb 2015 22:40:54 +0000 (22:40 +0000)]
Remove dead header.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227884 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoRemove dead code in the HexagonMCInst classes. This also fixes
Eric Christopher [Mon, 2 Feb 2015 22:40:53 +0000 (22:40 +0000)]
Remove dead code in the HexagonMCInst classes. This also fixes
a layering violation in the port and removes calls to getSubtargetImpl.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227883 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago80-col fixup.
Eric Christopher [Mon, 2 Feb 2015 22:40:51 +0000 (22:40 +0000)]
80-col fixup.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227882 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoInstrProf: Remove an unused header (NFC)
Justin Bogner [Mon, 2 Feb 2015 22:38:39 +0000 (22:38 +0000)]
InstrProf: Remove an unused header (NFC)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227881 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoRemove dead code in the HexagonMCInst classes. This also fixes
Eric Christopher [Mon, 2 Feb 2015 22:28:48 +0000 (22:28 +0000)]
Remove dead code in the HexagonMCInst classes. This also fixes
a layering violation in the port and removes calls to getSubtargetImpl.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227880 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago80-col fixup.
Eric Christopher [Mon, 2 Feb 2015 22:28:46 +0000 (22:28 +0000)]
80-col fixup.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227879 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoRemove unused class variables and update all callers/uses from
Eric Christopher [Mon, 2 Feb 2015 22:28:44 +0000 (22:28 +0000)]
Remove unused class variables and update all callers/uses from
the HexagonSplitTFRCondSet pass. Use the subtarget off the machine
function at the same time.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227878 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoMigrate the HexagonSplitConst32AndConst64 pass from TargetMachine
Eric Christopher [Mon, 2 Feb 2015 22:11:43 +0000 (22:11 +0000)]
Migrate the HexagonSplitConst32AndConst64 pass from TargetMachine
based getSubtarget to the one cached on the MachineFunction.
Remove unused class variables and update all callers/uses.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227874 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoRemove #if'd code and update comment.
Eric Christopher [Mon, 2 Feb 2015 22:11:42 +0000 (22:11 +0000)]
Remove #if'd code and update comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227873 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoMove HexagonMachineScheduler to use the subtarget off of the
Eric Christopher [Mon, 2 Feb 2015 22:11:40 +0000 (22:11 +0000)]
Move HexagonMachineScheduler to use the subtarget off of the
MachineFunction and update all uses accordingly including
VLIWResourceModel.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227872 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoCache and use the subtarget that owns the target lowering.
Eric Christopher [Mon, 2 Feb 2015 22:11:36 +0000 (22:11 +0000)]
Cache and use the subtarget that owns the target lowering.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227871 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[X86][MMX] Add tests for MMX extract element
Bruno Cardoso Lopes [Mon, 2 Feb 2015 22:00:48 +0000 (22:00 +0000)]
[X86][MMX] Add tests for MMX extract element

LLVM ToT produces poor MMX code compared to 3.5. However, part of the previous
functionality can be achieved by using -x86-experimental-vector-widening-legalization.
Add tests to be sure we don't regress again.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227869 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[X86][MMX] Cleanup shuffle, bitcast and insert element tests
Bruno Cardoso Lopes [Mon, 2 Feb 2015 21:56:11 +0000 (21:56 +0000)]
[X86][MMX] Cleanup shuffle, bitcast and insert element tests

- Merge MMX arg passing test files
- Merge MMX bitcast, insert elt and shuffle tests

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227867 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agobpf: Use the getSubtarget call off of the MachineFunction rather than the TargetMachine
Alexei Starovoitov [Mon, 2 Feb 2015 21:24:27 +0000 (21:24 +0000)]
bpf: Use the getSubtarget call off of the MachineFunction rather than the TargetMachine

Summary:
Hi Eric,

this patch cleans up the layering violation that you're fixing across backends.
Anything else I need to fix on bpf backend side?

Thanks

Reviewers: echristo

Reviewed By: echristo

Differential Revision: http://reviews.llvm.org/D7355

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227865 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoResurrect the assertion removed by r227717
Jingyue Wu [Mon, 2 Feb 2015 20:41:11 +0000 (20:41 +0000)]
Resurrect the assertion removed by r227717

Summary: MSVC can compile "LoopID->getOperand(0) == LoopID" when LoopID is MDNode*.

Test Plan: no regression

Reviewers: mkuper

Subscribers: jholewinski, llvm-commits

Differential Revision: http://reviews.llvm.org/D7327

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227853 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoFix the -Werror build, NFC
Duncan P. N. Exon Smith [Mon, 2 Feb 2015 20:20:56 +0000 (20:20 +0000)]
Fix the -Werror build, NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227849 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoIR: Allow GenericDebugNode construction from MDString
Duncan P. N. Exon Smith [Mon, 2 Feb 2015 20:01:03 +0000 (20:01 +0000)]
IR: Allow GenericDebugNode construction from MDString

Allow `GenericDebugNode` construction directly from `MDString`, rather
than requiring `StringRef`s.  I've refactored the `StringRef`
constructors to use these.  There's no real functionality change here,
except for exposing the lower-level API.

The purpose of this is to simplify construction of string operands when
reading bitcode.  It's unnecessarily indirect to parse an `MDString` ID,
lookup the `MDString` in the bitcode reader list, get the `StringRef`
out of that, and then have `GenericDebugNode::getImpl()` use
`MDString::get()` to acquire the original `MDString`.  Instead, this
allows the bitcode reader to directly pass in the `MDString`.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227848 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoIR: Extract DEFINE_MDNODE_GET(), NFC
Duncan P. N. Exon Smith [Mon, 2 Feb 2015 19:55:21 +0000 (19:55 +0000)]
IR: Extract DEFINE_MDNODE_GET(), NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227847 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoIR: Separate helpers for string operands, NFC
Duncan P. N. Exon Smith [Mon, 2 Feb 2015 19:54:05 +0000 (19:54 +0000)]
IR: Separate helpers for string operands, NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227846 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[Orc] Make OrcMCJITReplacement::addObject calls transfer buffer ownership to the
Lang Hames [Mon, 2 Feb 2015 19:51:18 +0000 (19:51 +0000)]
[Orc] Make OrcMCJITReplacement::addObject calls transfer buffer ownership to the
ObjectLinkingLayer.

There are a two of overloads for addObject, one of which transfers ownership of
the underlying buffer to OrcMCJITReplacement. This commit makes the ownership
transfering version pass ownership down to the ObjectLinkingLayer in order to
prevent the issue described in r227778.

I think this commit will fix the sanitizer bot failures that necessitated the
removal of the load-object-a.ll regression test in r227785, so I'm reinstating
that test.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227845 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoMove simple case earlier and use a continue.
Rafael Espindola [Mon, 2 Feb 2015 19:22:51 +0000 (19:22 +0000)]
Move simple case earlier and use a continue.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227841 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoMigrate HexagonISelDAGToDAG to setting a subtarget pointer during
Eric Christopher [Mon, 2 Feb 2015 19:22:03 +0000 (19:22 +0000)]
Migrate HexagonISelDAGToDAG to setting a subtarget pointer during
runOnMachineFunction. Update all uses of the Subtarget accordingly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227840 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoUse the getSubtarget call off of the MachineFunction rather than
Eric Christopher [Mon, 2 Feb 2015 19:22:01 +0000 (19:22 +0000)]
Use the getSubtarget call off of the MachineFunction rather than
the TargetMachine.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227839 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoRemove unused class variables and update calls to get the subtarget
Eric Christopher [Mon, 2 Feb 2015 19:05:28 +0000 (19:05 +0000)]
Remove unused class variables and update calls to get the subtarget
off of the machine function.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227837 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoSink queries into asserts since the variable is unused otherwise.
Eric Christopher [Mon, 2 Feb 2015 18:58:24 +0000 (18:58 +0000)]
Sink queries into asserts since the variable is unused otherwise.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227836 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoIR: Split out DebugInfoMetadata.h, NFC
Duncan P. N. Exon Smith [Mon, 2 Feb 2015 18:53:21 +0000 (18:53 +0000)]
IR: Split out DebugInfoMetadata.h, NFC

Move debug-info-centred `Metadata` subclasses into their own
header/source file.  A couple of private template functions are needed
from both `Metadata.cpp` and `DebugInfoMetadata.cpp`, so I've moved them
to `lib/IR/MetadataImpl.h`.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227835 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoUpdate CMake build for removed files.
Eric Christopher [Mon, 2 Feb 2015 18:52:49 +0000 (18:52 +0000)]
Update CMake build for removed files.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227834 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoGet TargetRegisterInfo and TargetInstrInfo off of the MachineFunction
Eric Christopher [Mon, 2 Feb 2015 18:46:31 +0000 (18:46 +0000)]
Get TargetRegisterInfo and TargetInstrInfo off of the MachineFunction
and remove unnecessary class variables.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227832 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoUse the function template getSubtarget to remove an explicit cast.
Eric Christopher [Mon, 2 Feb 2015 18:46:29 +0000 (18:46 +0000)]
Use the function template getSubtarget to remove an explicit cast.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227831 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoGrab TargetInstrInfo off of the MachineFunction and remove
Eric Christopher [Mon, 2 Feb 2015 18:46:27 +0000 (18:46 +0000)]
Grab TargetInstrInfo off of the MachineFunction and remove
unnecessary class variables.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227830 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoRemove unused files.
Eric Christopher [Mon, 2 Feb 2015 18:46:23 +0000 (18:46 +0000)]
Remove unused files.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227829 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoSTLExtras: Provide less/equal functors with templated function call operators, plus...
David Blaikie [Mon, 2 Feb 2015 18:35:10 +0000 (18:35 +0000)]
STLExtras: Provide less/equal functors with templated function call operators, plus a deref'ing functor template utility

Similar to the C++14 void specializations of these templates, useful as
a stop-gap until LLVM switches to '14.

Example use-cases in tblgen because I saw some functors that looked like
they could be simplified/refactored.

Reviewers: dexonsmith

Differential Revision: http://reviews.llvm.org/D7324

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227828 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoDebug Info: Relax assertion in isUnsignedDIType() to allow floats to be
Adrian Prantl [Mon, 2 Feb 2015 18:31:58 +0000 (18:31 +0000)]
Debug Info: Relax assertion in isUnsignedDIType() to allow floats to be
described by integer constants. This is a bit ugly, but if the source
language allows arbitrary type casting, the debug info must follow suit.

For example:
  void foo() {
    float a;
    *(int *)&a = 0;
  }
For the curious: SROA replaces the float alloca with an i32 alloca, which
is then optimized away and described via dbg.value(i32 0, ...).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227827 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoFix some file headers, NFC
Duncan P. N. Exon Smith [Mon, 2 Feb 2015 18:20:15 +0000 (18:20 +0000)]
Fix some file headers, NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227826 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoSupport: Add missing header to BlockFrequencyTest.cpp, NFC
Duncan P. N. Exon Smith [Mon, 2 Feb 2015 18:18:07 +0000 (18:18 +0000)]
Support: Add missing header to BlockFrequencyTest.cpp, NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227825 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoR600/SI: 64-bit and larger memory access must be at least 4-byte aligned
Tom Stellard [Mon, 2 Feb 2015 18:02:28 +0000 (18:02 +0000)]
R600/SI: 64-bit and larger memory access must be at least 4-byte aligned

This is true for SI only. CI+ supports unaligned memory accesses,
but this requires driver support, so for now we disallow unaligned
accesses for all GCN targets.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227822 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoR600/SI: Merge two test files
Tom Stellard [Mon, 2 Feb 2015 18:02:23 +0000 (18:02 +0000)]
R600/SI: Merge two test files

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227821 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[AArch64] Prefer DUP/MOV ("CPY") to INS for vector_extract.
Ahmed Bougacha [Mon, 2 Feb 2015 17:55:57 +0000 (17:55 +0000)]
[AArch64] Prefer DUP/MOV ("CPY") to INS for vector_extract.

This avoids a partial false dependency on the previous content of
the upper lanes of the destination vector register.

Differential Revision: http://reviews.llvm.org/D7307

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227820 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoSince TargetLowering is already subtarget dependent just pass
Eric Christopher [Mon, 2 Feb 2015 17:52:27 +0000 (17:52 +0000)]
Since TargetLowering is already subtarget dependent just pass
in the subtarget and stash it in the class so that lookups are
easier and safer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227819 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoUse the function template getSubtarget on the MachineFunction
Eric Christopher [Mon, 2 Feb 2015 17:52:25 +0000 (17:52 +0000)]
Use the function template getSubtarget on the MachineFunction
rather than a larger explicit cast.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227818 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoRemove unused class variable.
Eric Christopher [Mon, 2 Feb 2015 17:52:23 +0000 (17:52 +0000)]
Remove unused class variable.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227817 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoRemove unused class variable.
Eric Christopher [Mon, 2 Feb 2015 17:52:20 +0000 (17:52 +0000)]
Remove unused class variable.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227816 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agofix typo
Sanjay Patel [Mon, 2 Feb 2015 17:47:30 +0000 (17:47 +0000)]
fix typo

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227815 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoReuse a bunch of cached subtargets and remove getSubtarget calls
Eric Christopher [Mon, 2 Feb 2015 17:38:43 +0000 (17:38 +0000)]
Reuse a bunch of cached subtargets and remove getSubtarget calls
without a Function argument.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227814 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoRemove unnecessary forward declaration.
Eric Christopher [Mon, 2 Feb 2015 17:38:40 +0000 (17:38 +0000)]
Remove unnecessary forward declaration.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227813 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoRemove some unused forward declarations.
Eric Christopher [Mon, 2 Feb 2015 17:38:37 +0000 (17:38 +0000)]
Remove some unused forward declarations.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227812 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoFix ARM peephole optimizeCompare to avoid optimizing unsigned cmp to 0.
Jan Wen Voung [Mon, 2 Feb 2015 16:56:50 +0000 (16:56 +0000)]
Fix ARM peephole optimizeCompare to avoid optimizing unsigned cmp to 0.

Summary:
Previously it only avoided optimizing signed comparisons to 0.
Sometimes the DAGCombiner will optimize the unsigned comparisons
to 0 before it gets to the peephole pass, but sometimes it doesn't.

Fix for PR22373.

Test Plan: test/CodeGen/ARM/sub-cmp-peephole.ll

Reviewers: jfb, manmanren

Subscribers: aemerson, llvm-commits

Differential Revision: http://reviews.llvm.org/D7274

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227809 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoFix: SLPVectorizer crashes with assertion when vectorizing a cmp instruction.
Erik Eckstein [Mon, 2 Feb 2015 12:45:34 +0000 (12:45 +0000)]
Fix: SLPVectorizer crashes with assertion when vectorizing a cmp instruction.

The commit r225977 uncovered this bug. The problem was that the vectorizer tried to
read the second operand of an already deleted instruction.
The bug didn't show up before r225977 because the freed memory still contained a non-null pointer.
With r225977 deletion of instructions is delayed and the read operand pointer is always null.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227800 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[Orc] Remove one of the OrcMCJITReplacement regression tests while I
Lang Hames [Mon, 2 Feb 2015 06:01:02 +0000 (06:01 +0000)]
[Orc] Remove one of the OrcMCJITReplacement regression tests while I
investigate a sanitizer bot failure.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227785 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agogold-plugin.cpp: Fixup r227599 corresponding to r227685 and r227731 -- Don't lose...
NAKAMURA Takumi [Mon, 2 Feb 2015 05:47:30 +0000 (05:47 +0000)]
gold-plugin.cpp: Fixup r227599 corresponding to r227685 and r227731 -- Don't lose DataLayoutPass.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227783 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[Orc] Regression tests for OrcMCJITReplacement.
Lang Hames [Mon, 2 Feb 2015 05:04:55 +0000 (05:04 +0000)]
[Orc] Regression tests for OrcMCJITReplacement.

Duplicated from the MCJIT regression tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227780 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[Orc] Remove the OwnedModules list from OrcMCJITReplacement and use
Lang Hames [Mon, 2 Feb 2015 04:34:02 +0000 (04:34 +0000)]
[Orc] Remove the OwnedModules list from OrcMCJITReplacement and use
ExecutionEngine's Modules list instead.

This makes the owned modules visibile to ExecutionEngine. In particular,
it is required for ExecutionEngine::runStaticConstructorsAndDestructors to
work.

Regression tests for Orc (which test this issue) will be committed shortly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227779 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[Orc] Make the ObjectLinkingLayer take ownership of object files until
Lang Hames [Mon, 2 Feb 2015 04:32:17 +0000 (04:32 +0000)]
[Orc] Make the ObjectLinkingLayer take ownership of object files until
finalization time.

As currently implemented, RuntimeDyldELF requires the original object
file to be avaible when relocations are being resolved. This patch
ensures that the ObjectLinkingLayer preserves it until then. In the
future RuntimeDyldELF should be rewritten to remove this requirement, at
which point this patch can be reverted.

Regression test cases for Orc (which include coverage of this bug) will
be committed shortly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227778 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[Orc] Add sensible defaults for the ObjectLinkingLayer constructor.
Lang Hames [Mon, 2 Feb 2015 01:03:10 +0000 (01:03 +0000)]
[Orc] Add sensible defaults for the ObjectLinkingLayer constructor.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227776 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[PowerPC] Put PPCEarlyReturn into its own source file
Hal Finkel [Sun, 1 Feb 2015 22:58:46 +0000 (22:58 +0000)]
[PowerPC] Put PPCEarlyReturn into its own source file

PPCInstrInfo.cpp has ended up containing several small MI-level passes, and
this is making the file harder to read than necessary. Split out
PPCEarlyReturn into its own source file. NFC.

Now that PPCInstrInfo.cpp does not also contain pass implementations, I hope
that it will be slightly less unwieldy.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227775 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[PowerPC] Remove unnecessary include
Hal Finkel [Sun, 1 Feb 2015 22:03:13 +0000 (22:03 +0000)]
[PowerPC] Remove unnecessary include

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227772 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[PowerPC] Put PPCVSXCopy into its own source file
Hal Finkel [Sun, 1 Feb 2015 22:01:29 +0000 (22:01 +0000)]
[PowerPC] Put PPCVSXCopy into its own source file

PPCInstrInfo.cpp has ended up containing several small MI-level passes, and
this is making the file harder to read than necessary. Split out
PPCVSXCopy into its own source file. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227771 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[PowerPC] Put PPCVSXFMAMutate into its own source file
Hal Finkel [Sun, 1 Feb 2015 21:51:22 +0000 (21:51 +0000)]
[PowerPC] Put PPCVSXFMAMutate into its own source file

PPCInstrInfo.cpp has ended up containing several small MI-level passes, and
this is making the file harder to read than necessary. Split out
PPCVSXFMAMutate into its own source file. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227770 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[PowerPC] Remove the PPCVSXCopyCleanup pass
Hal Finkel [Sun, 1 Feb 2015 21:20:58 +0000 (21:20 +0000)]
[PowerPC] Remove the PPCVSXCopyCleanup pass

This MI-level pass was necessary when VSX support was first being developed,
specifically, before the ABI code had been updated to use VSX registers for
arguments (the register assignments did not change, in a physical sense, but
the VSX super-registers are now used). Unfortunately, I never went back and
removed this pass after that was done. I believe this code is now effectively
dead.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227767 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoLoopVectorize: Remove initializer list that blocks MSVC.
Benjamin Kramer [Sun, 1 Feb 2015 21:13:26 +0000 (21:13 +0000)]
LoopVectorize: Remove initializer list that blocks MSVC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227766 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[PowerPC] Add implicit ops to conditional returns in PPCEarlyReturn
Hal Finkel [Sun, 1 Feb 2015 20:16:10 +0000 (20:16 +0000)]
[PowerPC] Add implicit ops to conditional returns in PPCEarlyReturn

When PPCEarlyReturn, it should really copy implicit ops from the old return
instruction to the new one. This currently does not matter much, because we run
PPCEarlyReturn very late in the pipeline (there is nothing to do DCE on
definitions of those registers). However, for completeness, we should do it
anyway.

Noticed by inspection (and there should be no functional change); thus, no
test case.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227763 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoFoldingSetVectorIterator is just a subset of pointee_iterator, remove it.
Benjamin Kramer [Sun, 1 Feb 2015 19:26:05 +0000 (19:26 +0000)]
FoldingSetVectorIterator is just a subset of pointee_iterator, remove it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227761 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoValueTracking: Make isSafeToSpeculativelyExecute a little cleaner
David Majnemer [Sun, 1 Feb 2015 19:10:19 +0000 (19:10 +0000)]
ValueTracking: Make isSafeToSpeculativelyExecute a little cleaner

No functional change intended.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227760 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[PowerPC] VSX stores don't also read
Hal Finkel [Sun, 1 Feb 2015 19:07:41 +0000 (19:07 +0000)]
[PowerPC] VSX stores don't also read

The VSX store instructions were also picking up an implicit "may read" from the
default pattern, which was an intrinsic (and we don't currently have a way of
specifying write-only intrinsics).

This was causing MI verification to fail for VSX spill restores.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227759 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[PowerPC] Better scheduling for isel on P7/P8
Hal Finkel [Sun, 1 Feb 2015 17:52:16 +0000 (17:52 +0000)]
[PowerPC] Better scheduling for isel on P7/P8

isel is actually a cracked instruction on the P7/P8, and must start a dispatch
group. The scheduling model should reflect this so that we don't bunch too many
of them together when possible.

Thanks to Bill Schmidt and Pat Haugen for helping to sort this out.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227758 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoInclude cstddef in EquivalenceClasses.h
Adam Nemet [Sun, 1 Feb 2015 17:21:06 +0000 (17:21 +0000)]
Include cstddef in EquivalenceClasses.h

This is to try to appease bots complaining that ptrdiff_t is undefined in
LoopAccessAnalysis.cpp.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227757 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[LoopVectorize] Move LoopAccessAnalysis to its own module
Adam Nemet [Sun, 1 Feb 2015 16:56:15 +0000 (16:56 +0000)]
[LoopVectorize] Move LoopAccessAnalysis to its own module

Other than moving code and adding the boilerplate for the new files, the code
being moved is unchanged.

There are a few global functions that are shared with the rest of the
LoopVectorizer.  I moved these to the new module as well (emitLoopAnalysis,
stripIntegerCast, replaceSymbolicStrideSCEV) along with the Report class used
by emitLoopAnalysis.  There is probably room for further improvement in this
area.

I kept DEBUG_TYPE "loop-vectorize" because it's used as the PassName with
emitOptimizationRemarkAnalysis.  This will obviously have to change.

NFC.  This is part of the patchset that splits out the memory dependence logic
from LoopVectorizationLegality into a new class LoopAccessAnalysis.
LoopAccessAnalysis will be used by the new Loop Distribution pass.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227756 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[LoopVectorize] Move RuntimePointerCheck under LoopAccessAnalysis
Adam Nemet [Sun, 1 Feb 2015 16:56:11 +0000 (16:56 +0000)]
[LoopVectorize] Move RuntimePointerCheck under LoopAccessAnalysis

This class needs to remain public because it's used by
LoopVectorizationLegality::addRuntimeCheck.

NFC.  This is part of the patchset that splits out the memory dependence logic
from LoopVectorizationLegality into a new class LoopAccessAnalysis.
LoopAccessAnalysis will be used by the new Loop Distribution pass.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227755 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[LoopVectorize] Pass parameters explicitly to MemoryDepChecker
Adam Nemet [Sun, 1 Feb 2015 16:56:09 +0000 (16:56 +0000)]
[LoopVectorize] Pass parameters explicitly to MemoryDepChecker

Rather than using globals use a structure to pass parameters from the
vectorizer.  This prepares the class to be moved outside the LoopVectorizer.

It's not great how all this is passed through in LoopAccessAnalysis but this
is all expected to change once the class start servicing the Loop Distribution
pass as well where some of these parameters make no sense.

NFC.  This is part of the patchset that splits out the memory dependence logic
from LoopVectorizationLegality into a new class LoopAccessAnalysis.
LoopAccessAnalysis will be used by the new Loop Distribution pass.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227754 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[LoopVectorize] Make hasVectorInstrinsicScalarOpd inline
Adam Nemet [Sun, 1 Feb 2015 16:56:05 +0000 (16:56 +0000)]
[LoopVectorize] Make hasVectorInstrinsicScalarOpd inline

VectorUtils.h needs to be included in LoopAccessAnalysis.cpp for
getIntrinsicIDForCall but hasVectorInstrinsicScalarOpd is not used by this
module.

NFC.  This is part of the patchset that splits out the memory dependence logic
from LoopVectorizationLegality into a new class LoopAccessAnalysis.
LoopAccessAnalysis will be used by the new Loop Distribution pass.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227753 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[X86] Convert esp-relative movs of function arguments to pushes, step 2
Michael Kuperstein [Sun, 1 Feb 2015 16:56:04 +0000 (16:56 +0000)]
[X86] Convert esp-relative movs of function arguments to pushes, step 2

This moves the transformation introduced in r223757 into a separate MI pass.
This allows it to cover many more cases (not only cases where there must be a
reserved call frame), and perform rudimentary call folding. It still doesn't
have a heuristic, so it is enabled only for optsize/minsize, with stack
alignment <= 8, where it ought to be a fairly clear win.

(Re-commit of r227728)

Differential Revision: http://reviews.llvm.org/D6789

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227752 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[LoopVectorize] Split out LoopAccessAnalysis from LoopVectorizationLegality
Adam Nemet [Sun, 1 Feb 2015 16:56:04 +0000 (16:56 +0000)]
[LoopVectorize] Split out LoopAccessAnalysis from LoopVectorizationLegality

Move the canVectorizeMemory functionality from LoopVectorizationLegality to a
new class LoopAccessAnalysis and forward users.

Currently the collection of the symbolic stride information is kept with
LoopVectorizationLegality and it becomes an input to LoopAccessAnalysis.

NFC.  This is part of the patchset that splits out the memory dependence logic
from LoopVectorizationLegality into a new class LoopAccessAnalysis.
LoopAccessAnalysis will be used by the new Loop Distribution pass.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227751 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[LoopVectorize] Add accessors for Num{Stores,Loads,PredStores} in AccessAnalysis
Adam Nemet [Sun, 1 Feb 2015 16:56:02 +0000 (16:56 +0000)]
[LoopVectorize] Add accessors for Num{Stores,Loads,PredStores} in AccessAnalysis

These members are moving to LoopAccessAnalysis.  The accessors help to hide
this.

NFC.  This is part of the patchset that splits out the memory dependence logic
from LoopVectorizationLegality into a new class LoopAccessAnalysis.
LoopAccessAnalysis will be used by the new Loop Distribution pass.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227750 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[LoopVectorize] Rename the Report class to VectorizationReport
Adam Nemet [Sun, 1 Feb 2015 16:56:00 +0000 (16:56 +0000)]
[LoopVectorize] Rename the Report class to VectorizationReport

This class will become public in the new LoopAccessAnalysis header so the name
needs to be more global.

NFC.  This is part of the patchset that splits out the memory dependence logic
from LoopVectorizationLegality into a new class LoopAccessAnalysis.
LoopAccessAnalysis will be used by the new Loop Distribution pass.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227749 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[LoopVectorize] Factor out duplicated code into Report::emitAnalysis
Adam Nemet [Sun, 1 Feb 2015 16:55:58 +0000 (16:55 +0000)]
[LoopVectorize] Factor out duplicated code into Report::emitAnalysis

The logic in emitAnalysis is duplicated across multiple functions.  This
splits it into a function.  Another use will be added by the patchset.

NFC.  This is part of the patchset that splits out the memory dependence logic
from LoopVectorizationLegality into a new class LoopAccessAnalysis.
LoopAccessAnalysis will be used by the new Loop Distribution pass.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227748 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[LoopVectorize] Split out RuntimePointerCheck from LoopVectorizationLegality
Adam Nemet [Sun, 1 Feb 2015 16:55:56 +0000 (16:55 +0000)]
[LoopVectorize] Split out RuntimePointerCheck from LoopVectorizationLegality

RuntimePointerCheck will be used through LoopAccessAnalysis in
LoopVectorizationLegality.  Later in the patchset it will become a local class
of LoopAccessAnalysis.

NFC.  This is part of the patchset that splits out the memory dependence logic
from LoopVectorizationLegality into a new class LoopAccessAnalysis.
LoopAccessAnalysis will be used by the new Loop Distribution pass.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227747 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoRevert r227728 due to bad line endings.
Michael Kuperstein [Sun, 1 Feb 2015 16:15:07 +0000 (16:15 +0000)]
Revert r227728 due to bad line endings.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227746 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[PowerPC] Make r2 allocatable on PPC64/ELF for some leaf functions
Hal Finkel [Sun, 1 Feb 2015 15:03:28 +0000 (15:03 +0000)]
[PowerPC] Make r2 allocatable on PPC64/ELF for some leaf functions

The TOC base pointer is passed in r2, and we normally reserve this register so
that we can depend on it being there. However, for leaf functions, and
specifically those leaf functions that don't do any TOC access of their own
(which is generally due to accessing the constant pool, using TLS, etc.),
we can treat r2 as an ordinary callee-saved register (it must be callee-saved
because, for local direct calls, the linker will not insert any save/restore
code).

The allocation order has been changed slightly for PPC64/ELF systems to put r2
at the end of the list (while leaving it near the beginning for Darwin systems
to prevent unnecessary output changes). While r2 is allocatable, using it still
requires spill/restore traffic, and thus comes at the end of the list.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227745 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoFix some bashims. More information on https://wiki.ubuntu.com/DashAsBinSh. Reported...
Sylvestre Ledru [Sun, 1 Feb 2015 14:55:43 +0000 (14:55 +0000)]
Fix some bashims. More information on https://wiki.ubuntu.com/DashAsBinSh. Reported initially on https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=772302 & https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=772301

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227744 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[multiversion] Kill FunctionTargetTransformInfo, TTI itself is now
Chandler Carruth [Sun, 1 Feb 2015 14:37:03 +0000 (14:37 +0000)]
[multiversion] Kill FunctionTargetTransformInfo, TTI itself is now
per-function and supports the exact desired interface.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227743 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[multiversion] Remove the function parameter from the unrolling
Chandler Carruth [Sun, 1 Feb 2015 14:31:23 +0000 (14:31 +0000)]
[multiversion] Remove the function parameter from the unrolling
preferences interface on TTI now that all of TTI is per-function.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227741 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[multiversion] Switch the TTI queries from TargetMachine to Subtarget
Chandler Carruth [Sun, 1 Feb 2015 14:22:17 +0000 (14:22 +0000)]
[multiversion] Switch the TTI queries from TargetMachine to Subtarget
now that we have a correct and cached subtarget specific to the
function.

Also, finish providing a cached per-function subtarget in the core
LLVMTargetMachine -- that layer hadn't switched over yet.

The only use of the TargetMachine was to re-lookup a subtarget for
a particular function to work around the fact that TTI was immutable.
Now that it is per-function and we haved a cached subtarget, use it.

This still leaves a few interfaces with real warts on them where we were
passing Function objects through the TTI interface. I'll remove these
and clean their usage up in subsequent commits now that this isn't
necessary.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227738 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[multiversion] Remove the cached TargetMachine pointer from the
Chandler Carruth [Sun, 1 Feb 2015 14:01:15 +0000 (14:01 +0000)]
[multiversion] Remove the cached TargetMachine pointer from the
intermediate TTI implementation template and instead query up to the
derived class for both the TargetMachine and the TargetLowering.

Most of the derived types had a TLI cached already and there is no need
to store a less precisely typed target machine pointer.

This will in turn make it much cleaner to look up the TLI via
a per-function subtarget instead of the generic subtarget, and it will
pave the way toward pulling the subtarget used for unroll preferences
into the same form once we are *always* using the function to look up
the correct subtarget.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227737 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[multiversion] Remove another place we were "handling" nullptr even
Chandler Carruth [Sun, 1 Feb 2015 13:21:04 +0000 (13:21 +0000)]
[multiversion] Remove another place we were "handling" nullptr even
though it was never a reasonable input.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227736 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[multiversion] Switch all of the targets over to use the
Chandler Carruth [Sun, 1 Feb 2015 13:20:00 +0000 (13:20 +0000)]
[multiversion] Switch all of the targets over to use the
TargetIRAnalysis access path directly rather than implementing getTTI.

This even removes getTTI from the interface. It's more efficient for
each target to just register a precise callback that creates their
specific TTI.

As part of this, all of the targets which are building their subtargets
individually per-function now build their TTI instance with the function
and thus look up the correct subtarget and cache it. NVPTX, R600, and
XCore currently don't leverage this functionality, but its trivial for
them to add it now.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227735 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[multiversion] Remove a false freedom to leave the TargetMachine pointer
Chandler Carruth [Sun, 1 Feb 2015 12:38:24 +0000 (12:38 +0000)]
[multiversion] Remove a false freedom to leave the TargetMachine pointer
null.

For some reason some of the original TTI code supported a null target
machine. This seems to have been legacy, and I made matters worse when
refactoring this code by spreading that pattern further through the
various targets.

The TargetMachine can't actually be null, and it doesn't make sense to
support that use case. I've now consistently removed it and removed all
of the code trying to cope with that situation. This is probably good,
as several targets *didn't* cope with it being null despite the null
default argument in their constructors. =]

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227734 91177308-0d34-0410-b5e6-96231b3b80d8

7 years agoEarlyCSE: Replace custom hash mixing with Hashing.h
Benjamin Kramer [Sun, 1 Feb 2015 12:30:59 +0000 (12:30 +0000)]
EarlyCSE: Replace custom hash mixing with Hashing.h

Brings it in line with the other hashes in EarlyCSE.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227733 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[multiversion] Implement the old pass manager's TTI wrapper pass in
Chandler Carruth [Sun, 1 Feb 2015 12:26:09 +0000 (12:26 +0000)]
[multiversion] Implement the old pass manager's TTI wrapper pass in
terms of the new pass manager's TargetIRAnalysis.

Yep, this is one of the nicer bits of the new pass manager's design.
Passes can in many cases operate in a vacuum and so we can just nest
things when convenient. This is particularly convenient here as I can
now consolidate all of the TargetMachine logic on this analysis.

The most important change here is that this pushes the function we need
TTI for all the way into the TargetMachine, and re-creates the TTI
object for each function rather than re-using it for each function.
We're now prepared to teach the targets to produce function-specific TTI
objects with specific subtargets cached, etc.

One piece of feedback I'd love here is whether its worth renaming any of
this stuff. None of the names really seem that awesome to me at this
point, but TargetTransformInfoWrapperPass is particularly ... odd.
TargetIRAnalysisWrapper might make more sense. I would want to do that
rename separately anyways, but let me know what you think.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227731 91177308-0d34-0410-b5e6-96231b3b80d8

7 years ago[multiversion] Thread a function argument through all the callers of the
Chandler Carruth [Sun, 1 Feb 2015 12:01:35 +0000 (12:01 +0000)]
[multiversion] Thread a function argument through all the callers of the
getTTI method used to get an actual TTI object.

No functionality changed. This just threads the argument and ensures
code like the inliner can correctly look up the callee's TTI rather than
using a fixed one.

The next change will use this to implement per-function subtarget usage
by TTI. The changes after that should eliminate the need for FTTI as that
will have become the default.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@227730 91177308-0d34-0410-b5e6-96231b3b80d8