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6 years agoAttempt to pacify 4.8.5 with makeArrayRef
Reid Kleckner [Thu, 21 Dec 2017 00:28:34 +0000 (00:28 +0000)]
Attempt to pacify 4.8.5 with makeArrayRef

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321233 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[orc][cmake] Check if 8 byte atomics require libatomic for unittest
Simon Dardis [Wed, 20 Dec 2017 22:26:41 +0000 (22:26 +0000)]
[orc][cmake] Check if 8 byte atomics require libatomic for unittest

rL319838 introduced SymbolStringPool which uses 8 byte atomics for
reference counters. On systems which do not support such atomics
natively such as MIPS32, explicitly add libatomic as one of the
libraries for SymbolStringPool's unittest.

Reviewers: lhames, beanz

Differential Revision: https://reviews.llvm.org/D41010

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321225 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[ARM] Optimize {s,u}{add,sub}.with.overflow.
Joel Galenson [Wed, 20 Dec 2017 22:25:39 +0000 (22:25 +0000)]
[ARM] Optimize {s,u}{add,sub}.with.overflow.

The AArch64 backend contains code to optimize {s,u}{add,sub}.with.overflow during SelectionDAG.  This commit ports that code to the ARM backend.

Differential revision: https://reviews.llvm.org/D35635

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321224 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[Hexagon] Use ArrayRef member functions instead of custom ones
Krzysztof Parzyszek [Wed, 20 Dec 2017 20:54:13 +0000 (20:54 +0000)]
[Hexagon] Use ArrayRef member functions instead of custom ones

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321221 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[Hexagon] Allow construction of HVX vector predicates
Krzysztof Parzyszek [Wed, 20 Dec 2017 20:49:43 +0000 (20:49 +0000)]
[Hexagon] Allow construction of HVX vector predicates

Handle BUILD_VECTOR of boolean values.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321220 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[Hexagon] Legalize vector elements to i32 in buildVector32/64
Krzysztof Parzyszek [Wed, 20 Dec 2017 20:33:49 +0000 (20:33 +0000)]
[Hexagon] Legalize vector elements to i32 in buildVector32/64

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321218 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoDo not generate an empty switch statement as it causes MSVC to issue diagnostics...
Aaron Ballman [Wed, 20 Dec 2017 20:09:30 +0000 (20:09 +0000)]
Do not generate an empty switch statement as it causes MSVC to issue diagnostics about switch statements without case or default labels.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321217 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agobpf: add support for objdump -print-imm-hex
Yonghong Song [Wed, 20 Dec 2017 19:39:58 +0000 (19:39 +0000)]
bpf: add support for objdump -print-imm-hex

Add support for 'objdump -print-imm-hex' for imm64, operand imm
and branch target. If user programs encode immediate values
as hex numbers, such an option will make it easy to correlate
asm insns with source code. This option also makes it easy
to correlate imm values with insn encoding.

There is one changed behavior in this patch. In old way, we
print the 64bit imm as u64:
  O << (uint64_t)Op.getImm();
and the new way is:
  O << formatImm(Op.getImm());

The formatImm is defined in llvm/MC/MCInstPrinter.h as
  format_object<int64_t> formatImm(int64_t Value)

So the new way to print 64bit imm is i64 type.
If a 64bit value has the highest bit set, the old way
will print the value as a positive value and the
new way will print as a negative value. The new way
is consistent with x86_64.
For the code (see the test program):
 ...
 if (a == 0xABCDABCDabcdabcdULL)
 ...
x86_64 objdump, with and without -print-imm-hex, looks like:
 48 b8 cd ab cd ab cd ab cd ab   movabsq $-6067004223159161907, %rax
 48 b8 cd ab cd ab cd ab cd ab   movabsq $-0x5432543254325433, %rax

Signed-off-by: Yonghong Song <yhs@fb.com>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321215 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoPR35705: Fix Chapter 9 example code for API changes to DIBuilder
David Blaikie [Wed, 20 Dec 2017 19:36:54 +0000 (19:36 +0000)]
PR35705: Fix Chapter 9 example code for API changes to DIBuilder

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321214 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Refactor DomainReassignment pass to make the Closure class not stores reference...
Craig Topper [Wed, 20 Dec 2017 19:36:43 +0000 (19:36 +0000)]
[X86] Refactor DomainReassignment pass to make the Closure class not stores references to the main data structures of the pass itself

Multiple Closure objects can be created and stored for a single function. It's not a good idea to devote so many fields of it to storing pointers and references to global data structures of the pass. The closure class should only store the things needed to represent the closure itself.

This patch refactors many of the methods of Closure to belong to the pass object and to pass around a reference to the current Closure. The Closure class gains a few simple methods to add instructions and edges, and to return iterators to edges and instructions

Differential Revision: https://reviews.llvm.org/D41327

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321213 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoTableGen: Allow setting SDNodeProperties on intrinsics
Matt Arsenault [Wed, 20 Dec 2017 19:36:28 +0000 (19:36 +0000)]
TableGen: Allow setting SDNodeProperties on intrinsics

Allows preserving MachineMemOperands on intrinsics
through selection. For reasons I don't understand, this
is a static property of the pattern and the selector
deliberately goes out of its way to drop if not present.

Intrinsics already inherit from SDPatternOperator allowing
them to be used directly in instruction patterns. SDPatternOperator
has a list of SDNodeProperty, but you currently can't set them on
the intrinsic. Without SDNPMemOperand, when the node is selected
any memory operands are always dropped. Allowing setting this
on the intrinsics avoids needing to introduce another equivalent
target node just to have SDNPMemOperand set.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321212 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[ICP] Expose unconditional call promotion interface
Matthew Simpson [Wed, 20 Dec 2017 19:26:37 +0000 (19:26 +0000)]
[ICP] Expose unconditional call promotion interface

This patch modifies the indirect call promotion utilities by exposing and using
an unconditional call promotion interface. The unconditional promotion
interface (i.e., call promotion without creating an if-then-else) can be used
if it's known that an indirect call has only one possible callee. The existing
conditional promotion interface uses this unconditional interface to promote an
indirect call after it has been versioned and placed within the "then" block.

A consequence of unconditional promotion is that the fix-up operations for phi
nodes in the normal destination of invoke instructions are changed. This is
necessary because the existing implementation assumed that an invoke had been
versioned, creating a "merge" block where a return value bitcast could be
placed. In the new implementation, the edge between a promoted invoke's parent
block and its normal destination is split if needed to add a bitcast for the
return value. If the invoke is also versioned, the phi node merging the return
value of the promoted and original invoke instructions is placed in the "merge"
block.

Differential Revision: https://reviews.llvm.org/D40751

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321210 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Remove zext from vXi32 to vXi64 on indices of gather/scatter instructions if...
Craig Topper [Wed, 20 Dec 2017 19:25:33 +0000 (19:25 +0000)]
[X86] Remove zext from vXi32 to vXi64 on indices of gather/scatter instructions if we can prove the pre-extended value is positive.

Gather/scatter can implicitly sign extend from i32->i64 on indices. So if we know the sign bit of the input to a zext is 0 we can use the implicit extension.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321209 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoDAG: Tolerate non-MemSDNodes for OPC_RecordMemRef
Matt Arsenault [Wed, 20 Dec 2017 19:11:59 +0000 (19:11 +0000)]
DAG: Tolerate non-MemSDNodes for OPC_RecordMemRef

When intrinsics are allowed to have mem operands, there
are two ways this can happen. First is an intrinsic
that is marked has having a mem operand, but is not handled
by getTgtMemIntrinsic.

The second way can occur even for intrinsics which do not
have a mem operand. It seems the selector table does
some kind of sorting based on the opcode, and the
mem ref recording can happen in the same scope for
intrinsics that both do and do not have mem refs.
I haven't been able to figure out exactly why this happens
(although it happens even with the matcher optimizations disabled).
I'm not sure if it's worth trying to avoid hitting this for
these nodes since I think it's still reasonable to handle
this in case getTgtMemIntrinic is not implemented.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321208 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoImprove the test for r320216. NFC.
Warren Ristow [Wed, 20 Dec 2017 19:11:31 +0000 (19:11 +0000)]
Improve the test for r320216.  NFC.

Patch by Matthew Voss!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321207 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[opt-viewer] Also demangle indirect-call promotion targets
Adam Nemet [Wed, 20 Dec 2017 19:08:12 +0000 (19:08 +0000)]
[opt-viewer] Also demangle indirect-call promotion targets

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321206 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[PowerPC] Added an assert to make sure that the MBBI iterator is valid.
Stefan Pintilie [Wed, 20 Dec 2017 19:07:44 +0000 (19:07 +0000)]
[PowerPC] Added an assert to make sure that the MBBI iterator is valid.

The function createTailCallBranchInstr assumes that the iterator MBBI is valid.
However, only one use of MBBI is guarded in the function.
Fix this by adding an assert.

Differential Revision: https://reviews.llvm.org/D41358

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321205 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[DAG] Fix condition on overlapping store check.
Nirav Dave [Wed, 20 Dec 2017 19:06:47 +0000 (19:06 +0000)]
[DAG] Fix condition on overlapping store check.

Prevent overlapping store elision when overlapping store is
pre-inc/dec as analysis is wrong in these cases.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321204 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[hwasan] Implement -fsanitize-recover=hwaddress.
Evgeniy Stepanov [Wed, 20 Dec 2017 19:05:44 +0000 (19:05 +0000)]
[hwasan] Implement -fsanitize-recover=hwaddress.

Summary: Very similar to AddressSanitizer, with the exception of the error type encoding.

Reviewers: kcc, alekseyshl

Subscribers: cfe-commits, kubamracek, llvm-commits, hiraditya

Differential Revision: https://reviews.llvm.org/D41417

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321203 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[AMDGPU, AsmParser] Enable the mnemonic spell corrector.
Matt Arsenault [Wed, 20 Dec 2017 18:52:57 +0000 (18:52 +0000)]
[AMDGPU, AsmParser] Enable the mnemonic spell corrector.

Patch by Dmitry Venikov

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321202 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Implement the fusing of MUL+SUBADD to FMSUBADD
Craig Topper [Wed, 20 Dec 2017 18:05:15 +0000 (18:05 +0000)]
[X86] Implement the fusing of MUL+SUBADD to FMSUBADD

This patch turns shuffles of fadd/fsub with fmul into fmsubadd.

Patch by Dmitry Venikov

Differential Revision: https://reviews.llvm.org/D40335

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321200 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[PGO] Function section hotness prefix should look at all blocks
Teresa Johnson [Wed, 20 Dec 2017 17:53:10 +0000 (17:53 +0000)]
[PGO] Function section hotness prefix should look at all blocks

Summary:
The function section prefix for PGO based layout (e.g. hot/unlikely)
should look at the hotness of all blocks not just the entry BB.
A function with a cold entry but a very hot loop should be placed in the
hot section, for example, so that it is located close to other hot
functions it may call. For SamplePGO it was already looking at the
branch weights on calls, and I made that code conditional on whether
this is SamplePGO since it was essentially a noop for instrumentation
PGO anyway.

Reviewers: davidxl

Subscribers: eraman, llvm-commits

Differential Revision: https://reviews.llvm.org/D41395

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321197 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[InstCombine] Add debug location to new caller.
Florian Hahn [Wed, 20 Dec 2017 17:16:59 +0000 (17:16 +0000)]
[InstCombine] Add debug location to new caller.

Reviewers: rnk, aprantl, majnemer

Reviewed By: aprantl

Differential Revision: https://reviews.llvm.org/D414

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321191 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[JumpTables] Let targets decide which switch instructions are suitable
Nemanja Ivanovic [Wed, 20 Dec 2017 15:44:32 +0000 (15:44 +0000)]
[JumpTables] Let targets decide which switch instructions are suitable

This commits the non-controversial part of https://reviews.llvm.org/D41029
(making the queries virtual). The PPC-specific portion of this will be
committed in a subsequent patch once some of the finer points are ironed out.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321182 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoRevert r320548:[SLP] Vectorize jumbled memory loads
Mohammad Shahid [Wed, 20 Dec 2017 15:26:59 +0000 (15:26 +0000)]
Revert r320548:[SLP] Vectorize jumbled memory loads

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321181 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoAdd optional SelectionDAG* parameter to SValue::dump and SDValue::dumpr
Krzysztof Parzyszek [Wed, 20 Dec 2017 15:15:04 +0000 (15:15 +0000)]
Add optional SelectionDAG* parameter to SValue::dump and SDValue::dumpr

These functions simply call their counterparts in the associated SDNode,
which do take an optional SelectionDAG. This change makes the legalization
debug trace a little easier to read, since target-specific nodes will
now have their names shown instead of "Unknown node #123".

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321180 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[SCEV] Fix Typo. NFC.
Javed Absar [Wed, 20 Dec 2017 15:06:26 +0000 (15:06 +0000)]
[SCEV] Fix Typo. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321179 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[NVPTX] Initial adaptation of MCAsmStreamer/MCTargetStreamer for debug info in Cuda.
Alexey Bataev [Wed, 20 Dec 2017 14:55:10 +0000 (14:55 +0000)]
[NVPTX] Initial adaptation of MCAsmStreamer/MCTargetStreamer for debug info in Cuda.

Summary:
Initial changes in interfaces of MCAsmStreamer/MCTargetStreamer for
correct debug info emission for Cuda.
1. PTX foramt does not support `.ascii` directives. Added the ability to
nullify it.
2. The initial function label must follow the first debug `.loc`
directive, not be followed by.
3. DWARF sections must be enclosed in braces.

Reviewers: hfinkel, probinson, jlebar, rafael, echristo

Subscribers: sdardis, nemanjai, llvm-commits, aprantl

Differential Revision: https://reviews.llvm.org/D40033

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321178 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[Hexagon] Adjust the value type for BCvt in LowerFormalArguments
Krzysztof Parzyszek [Wed, 20 Dec 2017 14:44:05 +0000 (14:44 +0000)]
[Hexagon] Adjust the value type for BCvt in LowerFormalArguments

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321177 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[globalisel][tablegen] Allow ImmLeaf predicates to use InstructionSelector members
Daniel Sanders [Wed, 20 Dec 2017 14:41:51 +0000 (14:41 +0000)]
[globalisel][tablegen] Allow ImmLeaf predicates to use InstructionSelector members

NFC for currently supported targets. This resolves a problem encountered by
targets such as RISCV that reference `Subtarget` in ImmLeaf predicates.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321176 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoAllow to apply cherry-picks when building Docker images.
Ilya Biryukov [Wed, 20 Dec 2017 14:39:07 +0000 (14:39 +0000)]
Allow to apply cherry-picks when building Docker images.

Reviewers: mehdi_amini, ioeric, klimek

Reviewed By: ioeric

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D41393

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321175 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[LV] Remove unnecessary DoExtraAnalysis guard (silent bug)
Florian Hahn [Wed, 20 Dec 2017 13:28:38 +0000 (13:28 +0000)]
[LV] Remove unnecessary DoExtraAnalysis guard (silent bug)

canVectorize is only checking if the loop has a normalized pre-header if DoExtraAnalysis is true.
This doesn't make sense to me because reporting analysis information shouldn't alter legality
checks. This is probably the result of a last minute minor change before committing (?).

Patch by Diego Caballero.

Reviewed By: fhahn

Differential Revision: https://reviews.llvm.org/D40973

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321172 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86][AVX2] Split more shuffle tests into 'slow' and 'fast' variable shuffles
Simon Pilgrim [Wed, 20 Dec 2017 13:12:34 +0000 (13:12 +0000)]
[X86][AVX2] Split more shuffle tests into 'slow' and 'fast' variable shuffles

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321171 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoTrivial commit to force LLVM to run TableGen for Mips target after
Sander de Smalen [Wed, 20 Dec 2017 12:45:40 +0000 (12:45 +0000)]
Trivial commit to force LLVM to run TableGen for Mips target after
a change to the AsmMatcherEmitter, and should fix the buildbot
failure on llvm-clang-x86_64-expensive-checks-win.

The issue is also described here:
http://lists.llvm.org/pipermail/llvm-dev/2017-December/119617.html

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321170 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[TargetParser] Check size before accessing architecture version.
Florian Hahn [Wed, 20 Dec 2017 11:32:43 +0000 (11:32 +0000)]
[TargetParser] Check size before accessing architecture version.

Summary:
This fixes a crash when invalid -march options like `armv` are provided.

Based on a patch by Will Lovett.

Reviewers: rengolin, samparker, mcrosier

Reviewed By: samparker

Subscribers: aemerson, kristof.beyls, llvm-commits

Differential Revision: https://reviews.llvm.org/D41429

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321166 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[ARM GlobalISel] Fix assertion in RegBankSelect
Diana Picus [Wed, 20 Dec 2017 11:27:10 +0000 (11:27 +0000)]
[ARM GlobalISel] Fix assertion in RegBankSelect

We get an assertion in RegBankSelect for code along the lines of
my_32_bit_int = my_64_bit_int, which tends to translate into a 64-bit
load, followed by a G_TRUNC, followed by a 32-bit store. This appears in
a couple of places in the test-suite.

At the moment, the legalizer doesn't distinguish between integer and
floating point scalars, so a 64-bit load will be marked as legal for
targets with VFP, and so will the rest of the sequence, leading to a
slightly bizarre G_TRUNC reaching RegBankSelect.

Since the current support for 64-bit integers is rather immature, this
patch works around the issue by explicitly handling this case in
RegBankSelect and InstructionSelect. In the future, we may want to
revisit this decision and make sure 64-bit integer loads are narrowed
before reaching RegBankSelect.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321165 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[ARM] Lower unsigned saturation to USAT
Florian Hahn [Wed, 20 Dec 2017 11:13:57 +0000 (11:13 +0000)]
[ARM] Lower unsigned saturation to USAT

Summary:
Implement lower of unsigned saturation on an interval [0, k] where k + 1 is a power of two using USAT instruction in a similar way to how [~k, k] is lowered using SSAT on ARM models that supports it.

Patch by Marten Svanfeldt

Reviewers: t.p.northover, pbarrio, eastig, SjoerdMeijer, javed.absar, fhahn

Reviewed By: fhahn

Subscribers: fhahn, aemerson, javed.absar, llvm-commits, kristof.beyls

Differential Revision: https://reviews.llvm.org/D41348

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321164 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[AArch64][SVE] Re-submit patch series for ZIP1/ZIP2
Sander de Smalen [Wed, 20 Dec 2017 11:02:42 +0000 (11:02 +0000)]
[AArch64][SVE] Re-submit patch series for ZIP1/ZIP2

This patch resubmits the SVE ZIP1/ZIP2 patch series consisting of
of r320992, r320986, r320973, and r320970 by reverting
https://reviews.llvm.org/rL321024.

The issue that caused r321024 has been addressed in https://reviews.llvm.org/rL321158,
so this patch-series should be safe to resubmit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321163 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoAArch64: fix one more place movi.2d could be created.
Tim Northover [Wed, 20 Dec 2017 10:45:39 +0000 (10:45 +0000)]
AArch64: fix one more place movi.2d could be created.

Somehow got missed out of r320965.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321162 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoGive up on array allocas in getPointerDereferenceableBytes
Bjorn Steinbrink [Wed, 20 Dec 2017 10:01:30 +0000 (10:01 +0000)]
Give up on array allocas in getPointerDereferenceableBytes

Summary:
As suggested by Eli Friedman, don't try to handle array allocas here,
because of possible overflows, instead rely on instcombine converting
them to allocations of array types.

Reviewers: efriedma

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D41398

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321159 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[AArch64] Asm: Fix parsing of register aliases that have a name starting with 'z'
Sander de Smalen [Wed, 20 Dec 2017 09:45:45 +0000 (09:45 +0000)]
[AArch64] Asm: Fix parsing of register aliases that have a name starting with 'z'

Summary: This fixes an issue as identified by @rnk in https://reviews.llvm.org/rL321029.

Reviewers: rnk, fhahn, rengolin, efriedma, echristo, olista01

Reviewed By: rnk, fhahn

Subscribers: aemerson, javed.absar, kristof.beyls, llvm-commits, rnk

Differential Revision: https://reviews.llvm.org/D41382

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321158 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[AArch64] CCSIDR2 system register
Sam Parker [Wed, 20 Dec 2017 08:56:41 +0000 (08:56 +0000)]
[AArch64] CCSIDR2 system register

Implement the 'Current Cache Size' register that has been introduced
as part of the Armv8.3 architecture. I originally missed this, and
(hopefully) should be the final patch for assembler support.

Differential Revision: https://reviews.llvm.org/D41396

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321155 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86][CLFLUSH]: Adding full coverage of MC encoding for the CLFLUSH isa sets.<NFC>
Gadi Haber [Wed, 20 Dec 2017 08:28:24 +0000 (08:28 +0000)]
[X86][CLFLUSH]: Adding full coverage of MC encoding for the CLFLUSH isa sets.<NFC>

NFC.
Adding MC regressions tests to cover the CLFLSH and CLFLUSHOPT isa sets.
This patch is part of a larger task to cover MC encoding of all X86 isa sets started in revision: https://reviews.llvm.org/D39952

Reviewers: zvi, RKSimon, craig.topper, m_zuckerman
Differential Revision: https://reviews.llvm.org/D41331

Change-Id: Ifa643dd52f1b7184c52bc1806038dc74b234fc65

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321153 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Optimize sign extends on index operand to gather/scatter to not sign extend...
Craig Topper [Wed, 20 Dec 2017 07:36:59 +0000 (07:36 +0000)]
[X86] Optimize sign extends on index operand to gather/scatter to not sign extend past i32.

The gather instruction will implicitly sign extend to the pointer width, we don't need to further extend it. This can prevent unnecessary splitting in some cases.

There's still an issue that lowering on non-VLX can introduce another sign extend that doesn't get combined with shifts from a lowered sign_extend_inreg.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321152 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[AArch64] Implement stack probing for windows
Martin Storsjo [Wed, 20 Dec 2017 06:51:45 +0000 (06:51 +0000)]
[AArch64] Implement stack probing for windows

Differential Revision: https://reviews.llvm.org/D41131

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321150 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Add a missing return to combineGatherScatter after sucessful combine.
Craig Topper [Wed, 20 Dec 2017 06:44:50 +0000 (06:44 +0000)]
[X86] Add a missing return to combineGatherScatter after sucessful combine.

Not sure how to test this cause I think the worst that happens is that we don't revisit the node a second time to look for additional combines. We used UpdateNodeOperands so the updating the DAG work was already done.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321148 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[PowerPC] fix a bug in redundant compare elimination
Hiroshi Inoue [Wed, 20 Dec 2017 05:18:19 +0000 (05:18 +0000)]
[PowerPC] fix a bug in redundant compare elimination

This patch fixes a bug in the redundant compare elimination reported in https://reviews.llvm.org/rL320786 and re-enables the optimization.

The redundant compare elimination assumes that we can replace signed comparison with unsigned comparison for the equality check. But due to the difference in the sign extension behavior we cannot change the opcode if the comparison is against an immediate and the most significant bit of the immediate is one.

Differential Revision: https://reviews.llvm.org/D41385

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321147 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[memcpyopt] Teach memcpyopt to optimize across basic blocks
Dan Gohman [Wed, 20 Dec 2017 01:36:25 +0000 (01:36 +0000)]
[memcpyopt] Teach memcpyopt to optimize across basic blocks

This teaches memcpyopt to make a non-local memdep query when a local query
indicates that the dependency is non-local. This notably allows it to
eliminate many more llvm.memcpy calls in common Rust code, often by 20-30%.

This is r319482 and r319483, along with fixes for PR35519: fix the
optimization that merges stores into memsets to preserve cached memdep
info, and fix memdep's non-local caching strategy to not assume that larger
queries are always more conservative than smaller ones.

Fixes PR28958 and PR35519.

Differential Revision: https://reviews.llvm.org/D40802

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321138 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Improve coverage of fma negations.
Craig Topper [Wed, 20 Dec 2017 01:26:36 +0000 (01:26 +0000)]
[X86] Improve coverage of fma negations.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321137 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Fix probable typo in fma fneg test.
Craig Topper [Wed, 20 Dec 2017 01:26:35 +0000 (01:26 +0000)]
[X86] Fix probable typo in fma fneg test.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321136 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Remove code from combineSext that looks for MVT::i1 after operation legalizatio...
Craig Topper [Wed, 20 Dec 2017 01:00:01 +0000 (01:00 +0000)]
[X86] Remove code from combineSext that looks for MVT::i1 after operation legalization which can never happen.

Type legalization guarantees this to be impossible since MVT::i1 isn't a legal type.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321132 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[WebAssembly] Disable tee_local optimizations when targeting the ELF ABI.
Dan Gohman [Wed, 20 Dec 2017 00:59:28 +0000 (00:59 +0000)]
[WebAssembly] Disable tee_local optimizations when targeting the ELF ABI.

These optimizations depend on the ExplicitLocals pass to lower TEE
instructions, which is disabled in the ELF ABI, so disable them too.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321131 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[WebAssembly] Remove an obsolete comment.
Dan Gohman [Wed, 20 Dec 2017 00:10:28 +0000 (00:10 +0000)]
[WebAssembly] Remove an obsolete comment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321127 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoRevert "Fix faulty assertion in debug info"
Adrian McCarthy [Tue, 19 Dec 2017 23:34:37 +0000 (23:34 +0000)]
Revert "Fix faulty assertion in debug info"

This reverts commit e32def3f7ebe1136b7038336eff56a415a962bf2.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321125 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoFix faulty assertion in debug info
Adrian McCarthy [Tue, 19 Dec 2017 23:01:17 +0000 (23:01 +0000)]
Fix faulty assertion in debug info

It appears the code uses nullptr to represent a void type in debug metadata,
which led to an assertion failure when building DeltaAlgorithm.cpp with a
self-hosted clang on Windows.

I'm not sure why/if the problem was Windows-specific.

Fixes bug https://bugs.llvm.org/show_bug.cgi?id=35543

Differential Revision: https://reviews.llvm.org/D41264

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321122 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Add an assert to indicate that there is only once specific VT allowed at a...
Craig Topper [Tue, 19 Dec 2017 22:38:09 +0000 (22:38 +0000)]
[X86] Add an assert to indicate that there is only once specific VT allowed at a certain point in LowerMULH.

Helps with code readability a little.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321118 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoSilence a bunch of implicit fallthrough warnings
Adrian Prantl [Tue, 19 Dec 2017 22:05:25 +0000 (22:05 +0000)]
Silence a bunch of implicit fallthrough warnings

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321114 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[CodeGen] Move printing MO_BlockAddress operands to MachineOperand::print
Francis Visoiu Mistrih [Tue, 19 Dec 2017 21:47:14 +0000 (21:47 +0000)]
[CodeGen] Move printing MO_BlockAddress operands to MachineOperand::print

Work towards the unification of MIR and debug output by refactoring the
interfaces.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321113 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[CodeGen] Move printing MO_IntrinsicID operands to MachineOperand::print
Francis Visoiu Mistrih [Tue, 19 Dec 2017 21:47:10 +0000 (21:47 +0000)]
[CodeGen] Move printing MO_IntrinsicID operands to MachineOperand::print

Work towards the unification of MIR and debug output by refactoring the
interfaces.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321112 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[CodeGen] Move printing MO_IntrinsicID operands to MachineOperand::print
Francis Visoiu Mistrih [Tue, 19 Dec 2017 21:47:05 +0000 (21:47 +0000)]
[CodeGen] Move printing MO_IntrinsicID operands to MachineOperand::print

Work towards the unification of MIR and debug output by refactoring the
interfaces.

Also add support for printing with a null TargetIntrinsicInfo and no
MachineFunction.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321111 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[CodeGen] Move printing MO_FPImmediate operands to MachineOperand::print
Francis Visoiu Mistrih [Tue, 19 Dec 2017 21:47:00 +0000 (21:47 +0000)]
[CodeGen] Move printing MO_FPImmediate operands to MachineOperand::print

Work towards the unification of MIR and debug output by refactoring the
interfaces.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321110 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[CodeGen] Refactor printOffset from MO and MIRPrinter
Francis Visoiu Mistrih [Tue, 19 Dec 2017 21:46:55 +0000 (21:46 +0000)]
[CodeGen] Refactor printOffset from MO and MIRPrinter

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321109 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[CGP] Format. NFC
Haicheng Wu [Tue, 19 Dec 2017 20:53:32 +0000 (20:53 +0000)]
[CGP] Format. NFC

Clang-format.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321107 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoTargetLoweringBase: Fix darwinHasSinCos()
Matthias Braun [Tue, 19 Dec 2017 20:24:12 +0000 (20:24 +0000)]
TargetLoweringBase: Fix darwinHasSinCos()

Another followup to my refactoring in r321036: Turns out we can end up
with an x86 darwin target that is not macos (simulator triples can look
like i386-apple-ios) so we need the x86/32bit check in all cases.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321104 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[dwarfdump][test] Add test case for r321064
Jonas Devlieghere [Tue, 19 Dec 2017 19:42:32 +0000 (19:42 +0000)]
[dwarfdump][test] Add test case for r321064

Verify that -lookup takes a 64-bit address.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321101 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[AMDGPU] Turn off MergeConsecutiveStores() before Instruction Selection for AMDGPU...
Mark Searles [Tue, 19 Dec 2017 19:26:23 +0000 (19:26 +0000)]
[AMDGPU] Turn off MergeConsecutiveStores() before Instruction Selection for AMDGPU. Commit dbbb6c5fc3642987430866dffdf710df4f616ac7 turned on MergeConsecutiveStores() before Instruction Selection for all targets. Enough AMDGPU compiles go into an infinite loop ( MergeConsecutiveStores() merges two stores; LegalizeStoreOps() un-merges; MergeConsecutiveStores() re-merges, etc. ) to warrant turning it off until the issues can be addressed.

Differential Revision: https://reviews.llvm.org/D41377

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321100 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[SeparateConstOffsetFromGEP] Fix a typo. NFC.
Haicheng Wu [Tue, 19 Dec 2017 18:49:21 +0000 (18:49 +0000)]
[SeparateConstOffsetFromGEP] Fix a typo. NFC.

do CSE for to => do CSE to

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321098 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Regenerate popcnt tests
Simon Pilgrim [Tue, 19 Dec 2017 18:05:13 +0000 (18:05 +0000)]
[X86] Regenerate popcnt tests

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321093 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[GlobalISel][Legalizer] Fix crash when trying to lower G_FNEG of fp128 types.
Amara Emerson [Tue, 19 Dec 2017 17:21:35 +0000 (17:21 +0000)]
[GlobalISel][Legalizer] Fix crash when trying to lower G_FNEG of fp128 types.

This doesn't add legalizer support, just prevents crashing so that we
can gracefully fall back to SDAG.

Fixes PR35690.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321091 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[DAG] Elide overlapping store
Nirav Dave [Tue, 19 Dec 2017 17:10:56 +0000 (17:10 +0000)]
[DAG] Elide overlapping store

Summary:
Extend overlapping store elision to handle overwrites of stores by
larger stores.

Nontemporal tests have been modified to add memory dependencies to
prevent store elision.

Reviewers: craig.topper, rnk, t.p.northover

Subscribers: javed.absar, hiraditya, llvm-commits

Differential Revision: https://reviews.llvm.org/D40969

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321089 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86][AVX512] Attempt target shuffle combining to different types instead of early-out
Simon Pilgrim [Tue, 19 Dec 2017 16:54:07 +0000 (16:54 +0000)]
[X86][AVX512] Attempt target shuffle combining to different types instead of early-out

We try to prevent shuffle combining to value types that would stop the folding of masked operations, but by just returning early, we were failing to try different shuffle types.

The TODOs are all still relevant here to improve codegen but we're lacking test examples.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321085 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[CodeGen] Move printing MO_CFIIndex operands to MachineOperand::print
Francis Visoiu Mistrih [Tue, 19 Dec 2017 16:51:52 +0000 (16:51 +0000)]
[CodeGen] Move printing MO_CFIIndex operands to MachineOperand::print

Work towards the unification of MIR and debug output by refactoring the
interfaces.

Before this patch we printed "<call frame instruction>" in the debug
output.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321084 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[CFGVPrinter] Fix -dot-cfg-only
Francis Visoiu Mistrih [Tue, 19 Dec 2017 15:20:18 +0000 (15:20 +0000)]
[CFGVPrinter] Fix -dot-cfg-only

The refactoring in r281640 made -dot-cfg-only ignore the "-only" part.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321079 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[ThinLTO][C-API] Correct api comments
Ben Dunbobbin [Tue, 19 Dec 2017 14:49:33 +0000 (14:49 +0000)]
[ThinLTO][C-API] Correct api comments

Negative values never disabled the pruning - they simply set high values for the pruning interval.

The behaviour now is that negative values set the maximum pruning interval (which appears to have been the intention from the start) see https://reviews.llvm.org/D41231.

I have adjusted the comments to reflect this, removed any inaccurate statements, and corrected any typos I spotted in the English.

Differential Revision: https://reviews.llvm.org/D41279

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321078 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[Support][CachePruning] Disable cache pruning regression fix
Ben Dunbobbin [Tue, 19 Dec 2017 14:42:38 +0000 (14:42 +0000)]
[Support][CachePruning] Disable cache pruning regression fix

borked by: rL284966 (see: https://reviews.llvm.org/D25730).

Previously, Interval was unsigned (see: CachePruning.h), replacing the type with std::chrono::seconds (which is signed) causes a regression in behaviour because the c-api intends negative values to translate to large positive intervals to *effectively* disable the pruning (see comments on: setCachePruningInterval()).

Differential Revision: https://reviews.llvm.org/D41231

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321077 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Fix uninitialized variable sanitizer warning from rL321074
Simon Pilgrim [Tue, 19 Dec 2017 14:34:35 +0000 (14:34 +0000)]
[X86] Fix uninitialized variable sanitizer warning from rL321074

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321076 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[InlineCost] Skip volatile loads when looking for repeated loads
Haicheng Wu [Tue, 19 Dec 2017 13:42:58 +0000 (13:42 +0000)]
[InlineCost] Skip volatile loads when looking for repeated loads

This is a follow-up fix of r320814.  A test case is also added.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321075 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86][SSE] Add cpu feature for aggressive combining to variable shuffles
Simon Pilgrim [Tue, 19 Dec 2017 13:16:43 +0000 (13:16 +0000)]
[X86][SSE] Add cpu feature for aggressive combining to variable shuffles

As mentioned in D38318 and D40865, modern Intel processors prefer to combine multiple shuffles to a variable shuffle mask (PSHUFB/VPERMPS etc.) instead of having multiple stage 'fixed' shuffles which put more pressure on Port 5 (at the expense of extra shuffle mask loads).

This patch provides a FeatureFastVariableShuffle target flag for Haswell+ CPUs that prefers combining 2 or more fixed shuffles to a single variable shuffle (default is 3 shuffles).

The long term aim is to drive more of this from schedule data (probably via the MC) but we're not close to being ready for that yet.

Differential Revision: https://reviews.llvm.org/D41323

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321074 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[ARM] Register the Thumb2SizeReducePass. NFC
David Green [Tue, 19 Dec 2017 12:19:08 +0000 (12:19 +0000)]
[ARM] Register the Thumb2SizeReducePass. NFC

Also adds a simple test case.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321072 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[Support] Add WritableMemoryBuffer class
Pavel Labath [Tue, 19 Dec 2017 12:15:50 +0000 (12:15 +0000)]
[Support] Add WritableMemoryBuffer class

Summary:
The motivation here is LLDB, where we need to fixup relocations in
mmapped files before their contents can be read correctly.  The
MemoryBuffer class does exactly what we need, *except* that it maps the
file in read-only mode.

WritableMemoryBuffer reuses the existing machinery for opening and
mmapping a file. The only difference is in the argument to the
mapped_file_region constructor -- we create a private copy-on-write
mapping, so that we can make changes to the mapped data, but the changes
aren't carried over to the underlying file.

This patch is based on an initial version by Zachary Turner.

Reviewers: mehdi_amini, rnk, rafael, dblaikie, zturner

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D40291

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321071 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86][SSE] Use (V)PHMINPOSUW for vXi8 SMAX/SMIN/UMAX/UMIN horizontal reductions ...
Simon Pilgrim [Tue, 19 Dec 2017 12:02:40 +0000 (12:02 +0000)]
[X86][SSE] Use (V)PHMINPOSUW for vXi8 SMAX/SMIN/UMAX/UMIN horizontal reductions (PR32841)

Extension to D39729 which performed this for vXi16, with the same bit flipping to handle SMAX/SMIN/UMAX cases, vXi8 UMIN horizontal reductions can be performed.

This makes use of the fact that by performing a pair-wise i8 SHUFFLE/UMIN before PHMINPOSUW, we both get the UMIN of each pair but also zero-extend the upper bits ready for v8i16.

Differential Revision: https://reviews.llvm.org/D41294

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321070 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoFix: [YAML] Always double quote UTF-8 characters
Francis Visoiu Mistrih [Tue, 19 Dec 2017 11:59:28 +0000 (11:59 +0000)]
Fix: [YAML] Always double quote UTF-8 characters

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321069 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[YAML] Always double quote UTF-8 characters
Francis Visoiu Mistrih [Tue, 19 Dec 2017 11:51:05 +0000 (11:51 +0000)]
[YAML] Always double quote UTF-8 characters

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321068 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[mips] Handle the emission of microMIPSr6 sll instruction when used as a nop.
Simon Dardis [Tue, 19 Dec 2017 11:16:22 +0000 (11:16 +0000)]
[mips] Handle the emission of microMIPSr6 sll instruction when used as a nop.

This instruction is encoded as zero, so we have handle that case when checking
for unimplemented opcodes when producing the encoding for an instruction.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321066 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[dwarfdump] Lookup needs to be an unsigned long long parameter.
Jonas Devlieghere [Tue, 19 Dec 2017 09:45:26 +0000 (09:45 +0000)]
[dwarfdump] Lookup needs to be an unsigned long long parameter.

Before this patch, dwarfdump's lookup parameter only accepts unsigned.
Given that for many current platforms the load address already exceeds
unsigned (e.g. arm64 w/ 0x100000000), dwarfdump needs an unsigned long
long parameter.

Patch by: Dr. Michael 'Mickey' Lauer <mickey@vanille-media.de>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321064 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[JumpThreading] Restrict PRE across instructions that don't pass control to successors
Max Kazantsev [Tue, 19 Dec 2017 09:10:21 +0000 (09:10 +0000)]
[JumpThreading] Restrict PRE across instructions that don't pass control to successors

PRE in JumpThreading should not be able to hoist copy of non-speculable loads across
instructions that don't always transfer execution to their successors, otherwise they may
introduce an unsafe load which otherwise would not be executed.

The same problem for GVN was fixed as rL316975.

Differential Revision: https://reviews.llvm.org/D40347

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321063 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[FuzzMutate] Don't crash when mutator is unable to find operation
Igor Laevsky [Tue, 19 Dec 2017 08:52:51 +0000 (08:52 +0000)]
[FuzzMutate] Don't crash when mutator is unable to find operation

Differential Revision: https://reviews.llvm.org/D41009

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321062 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoTreat sret arguments as being dereferenceable in getPointerDereferenceableBytes()
Bjorn Steinbrink [Tue, 19 Dec 2017 08:46:46 +0000 (08:46 +0000)]
Treat sret arguments as being dereferenceable in getPointerDereferenceableBytes()

Reviewers: rnk, hfinkel, efriedma

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D41355

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321061 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Don't extend v16i8 non-uniform shifts to v16i32 if we have BWI. Use v16i16...
Craig Topper [Tue, 19 Dec 2017 06:59:10 +0000 (06:59 +0000)]
[X86] Don't extend v16i8 non-uniform shifts to v16i32 if we have BWI. Use v16i16 instead.

BWI supports shifting by word amounts. Even if VLX isn't support we can still widen to v32i16 and extract the lower half. For SKX its preferrable to not use 512-bit vector if we can.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321059 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Use a specific list of MVTs in combineShiftRightArithmetic instead of iterating...
Craig Topper [Tue, 19 Dec 2017 06:29:00 +0000 (06:29 +0000)]
[X86] Use a specific list of MVTs in combineShiftRightArithmetic instead of iterating over every integer VT and checking their size.

Previously, we were checking for MVTs with sizes betwen 8 and 64 which only includes i8, i16, i32, and i64 today. But I don't think we should assume that and should list the types that are legal for x86. I also don't think we need i64 since type legalization is guaranteed to split those up.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321058 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Remove unnecessary check for integer VT from combineShiftRightArithmetic.
Craig Topper [Tue, 19 Dec 2017 06:28:58 +0000 (06:28 +0000)]
[X86] Remove unnecessary check for integer VT from combineShiftRightArithmetic.

I doubt there's any way to create a ashr for an FP type.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321057 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Remove dead code for turning vector shifts by large amounts into a zero vector.
Craig Topper [Tue, 19 Dec 2017 05:21:50 +0000 (05:21 +0000)]
[X86] Remove dead code for turning vector shifts by large amounts into a zero vector.

Pretty sure these are handled by a target independent DAG combine that turns them into undef these days.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321056 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[X86] Use ZERO_EXTEND instead of ANY_EXTEND when extending the shift amount for a...
Craig Topper [Tue, 19 Dec 2017 04:52:04 +0000 (04:52 +0000)]
[X86] Use ZERO_EXTEND instead of ANY_EXTEND when extending the shift amount for a non-uniform shift.

My reading of the SDM says that all bits of the shift amount are used. If the value of the element is larger than the number of bits the result the shift result is zero. So I think we need to zero_extend here to avoid garbage in the upper bits.

In reality we lower any_extend as zero_extend so in most cases it would be hard to hit this.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321055 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoFix APFloat from string conversion for Inf
Serguei Katkov [Tue, 19 Dec 2017 04:27:39 +0000 (04:27 +0000)]
Fix APFloat from string conversion for Inf

The method IEEEFloat::convertFromStringSpecials() does not recognize
the "+Inf" and "-Inf" strings but these strings are printed for
the double Infinities by the IEEEFloat::toString().

This patch adds the "+Inf" and "-Inf" strings to the list of recognized
patterns in IEEEFloat::convertFromStringSpecials().

Re-landing after fix.

Reviewers: sberg, bogner, majnemer, timshen, rnk, skatkov, gottesmm, bkramer, scanon, anna
Reviewed By: anna
Subscribers: mkazantsev, FlameTop, llvm-commits, reames, apilipenko
Differential Revision: https://reviews.llvm.org/D38030

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321054 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[TableGen][GlobalISel] Reset the internal map of RuleMatchers just before the emission
Quentin Colombet [Tue, 19 Dec 2017 02:57:23 +0000 (02:57 +0000)]
[TableGen][GlobalISel] Reset the internal map of RuleMatchers just before the emission

Between the creation of the last InstructionMatcher and the first
emission of the related Rule, we need to clear the internal map of IDs.
We used to do that right after the creation of the main
InstructionMatcher when building the rule and although that worked, this
is fragile because if for some reason some later code decides to create
more InstructionMatcher before the final call to emit, then the IDs
would be completely messed up.

Move that to the beginning of "emit" so that the IDs are guarantee to be
consistent.

NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321053 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoFix Wasm as a follow up to r321035 and the other one
Reid Kleckner [Tue, 19 Dec 2017 01:08:53 +0000 (01:08 +0000)]
Fix Wasm as a follow up to r321035 and the other one

This array is tightly coupled with the .def file. Someone should look
into fixing that.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321050 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoupdate_mir_test_checks: Accept IR as input as well as MIR
Justin Bogner [Tue, 19 Dec 2017 00:49:04 +0000 (00:49 +0000)]
update_mir_test_checks: Accept IR as input as well as MIR

We need to handle IR for tests that want to do lowering (or just
-stop-after with IR as input). I've run this on one AArch64 test to
demonstrate what it looks like.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321048 91177308-0d34-0410-b5e6-96231b3b80d8

6 years ago[llvm-objcopy] Add option to add a progbits section from a file
Jake Ehrlich [Tue, 19 Dec 2017 00:47:30 +0000 (00:47 +0000)]
[llvm-objcopy] Add option to add a progbits section from a file

This change adds support for adding progbits sections with contents from a file

Differential Revision: https://reviews.llvm.org/D41212

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321047 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoTargetLoweringBase: Followup to r321035
Matthias Braun [Tue, 19 Dec 2017 00:43:00 +0000 (00:43 +0000)]
TargetLoweringBase: Followup to r321035

I missed some prefixes and the fact that on AArch64 we use "bzero"
instead of "__bzero" as on X86 when doing my refactoring in r321035.

Improve tests for bzero.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321046 91177308-0d34-0410-b5e6-96231b3b80d8

6 years agoTargetLowering: Fix InitLibcallCallingConvs() overriding things set in InitLibcalls()
Matthias Braun [Tue, 19 Dec 2017 00:20:33 +0000 (00:20 +0000)]
TargetLowering: Fix InitLibcallCallingConvs() overriding things set in InitLibcalls()

I missed the fact that the later called InitLibcallCallingConvs()
overrides some things set in InitLibcalls() when I did the refactoring
in r321036.

Fix by merging InitLibcallCallingConvs() into InitLibcalls() and doing
the initialization earlier.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@321045 91177308-0d34-0410-b5e6-96231b3b80d8