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Matt Arsenault [Thu, 11 Jun 2015 16:03:52 +0000 (16:03 +0000)]
Fix merges of non-zero vector stores
Now actually stores the non-zero constant instead of 0.
I somehow forgot to include this part of r238108.
The test change was just an independent instruction order swap,
so just add another check line to satisfy CHECK-NEXT.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239539
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Daniel Sanders [Thu, 11 Jun 2015 15:34:59 +0000 (15:34 +0000)]
Replace string GNU Triples with llvm::Triple in computeDataLayout(). NFC.
Summary:
This continues the patch series to eliminate StringRef forms of GNU triples
from the internals of LLVM that began in r239036.
Reviewers: rengolin
Reviewed By: rengolin
Subscribers: llvm-commits, jfb, rengolin
Differential Revision: http://reviews.llvm.org/D10361
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239538
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Tom Stellard [Thu, 11 Jun 2015 14:51:50 +0000 (14:51 +0000)]
R600/SI: Define latency for flat instructions
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239535
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Tom Stellard [Thu, 11 Jun 2015 14:51:49 +0000 (14:51 +0000)]
R600/SI: Move flat instruction defs to CIInstructions.td
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239534
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Tom Stellard [Thu, 11 Jun 2015 14:51:46 +0000 (14:51 +0000)]
R600/SI: Add -mcpu=bonaire to a test that uses flat address space
Flat instructions don't exist on SI, but there is a bug in the backend that
allows them to be selected.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239533
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Sanjay Patel [Thu, 11 Jun 2015 14:26:49 +0000 (14:26 +0000)]
remove function names from comments; NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239532
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Aaron Ballman [Thu, 11 Jun 2015 13:06:02 +0000 (13:06 +0000)]
Fixing MSVC 2013 build error.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239529
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Toma Tabacu [Thu, 11 Jun 2015 10:36:10 +0000 (10:36 +0000)]
Recommit "[mips] [IAS] Add support for BNE and BEQ with an immediate operand." (r239396).
Apparently, Arcanist didn't include some of my local changes in my previous
commit attempt.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239523
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Zoran Jovanovic [Thu, 11 Jun 2015 10:22:46 +0000 (10:22 +0000)]
[mips][microMIPS] Implement ERET and ERETNC instructions
http://reviews.llvm.org/D10091
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239522
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Zoran Jovanovic [Thu, 11 Jun 2015 09:51:58 +0000 (09:51 +0000)]
[mips] Change existing uimm10 operand to restrict the accepted immediates
http://reviews.llvm.org/D10312
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239520
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Zoran Jovanovic [Thu, 11 Jun 2015 09:42:10 +0000 (09:42 +0000)]
[mips][microMIPSr6] Change disassembler tests to one line format
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239519
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Hao Liu [Thu, 11 Jun 2015 09:18:07 +0000 (09:18 +0000)]
[LoopVectorize] Revert the enabling of interleaved memory access in Loop Vectorizor, which was wrongly committed in r239514.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239515
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Hao Liu [Thu, 11 Jun 2015 09:05:02 +0000 (09:05 +0000)]
[AArch64] Match interleaved memory accesses into ldN/stN instructions.
Add a pass AArch64InterleavedAccess to identify and match interleaved memory accesses. This pass transforms an interleaved load/store into ldN/stN intrinsic. As Loop Vectorizor disables optimization on interleaved accesses by default, this optimization is also disabled by default. To enable it by "-aarch64-interleaved-access-opt=true"
E.g. Transform an interleaved load (Factor = 2):
%wide.vec = load <8 x i32>, <8 x i32>* %ptr
%v0 = shuffle %wide.vec, undef, <0, 2, 4, 6> ; Extract even elements
%v1 = shuffle %wide.vec, undef, <1, 3, 5, 7> ; Extract odd elements
Into:
%ld2 = { <4 x i32>, <4 x i32> } call aarch64.neon.ld2(%ptr)
%v0 = extractelement { <4 x i32>, <4 x i32> } %ld2, i32 0
%v1 = extractelement { <4 x i32>, <4 x i32> } %ld2, i32 1
E.g. Transform an interleaved store (Factor = 2):
%i.vec = shuffle %v0, %v1, <0, 4, 1, 5, 2, 6, 3, 7> ; Interleaved vec
store <8 x i32> %i.vec, <8 x i32>* %ptr
Into:
%v0 = shuffle %i.vec, undef, <0, 1, 2, 3>
%v1 = shuffle %i.vec, undef, <4, 5, 6, 7>
call void aarch64.neon.st2(%v0, %v1, %ptr)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239514
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Arnaud A. de Grandmaison [Thu, 11 Jun 2015 07:50:21 +0000 (07:50 +0000)]
[LiveVariables] Improve isLiveOut runtime performances. NFC.
On large goto table based interpreters, where phi nodes can have (very) large
fan-ins, isLiveOut exhibited poor performances: about 40% of the full
codegen time was spent in PHIElim, sorting MachineBasicBlock addresses.
This patch improve the performances for such cases, and does not show
compile time regressions on the LNT, at bootstrap (llvm+clang+lldb) or
any other benchmarks we have in-house.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239510
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Simon Pilgrim [Thu, 11 Jun 2015 07:46:37 +0000 (07:46 +0000)]
[X86][SSE] Vectorized i8 and i16 shift operators
This patch ensures that SHL/SRL/SRA shifts for i8 and i16 vectors avoid scalarization. It builds on the existing i8 SHL vectorized implementation of moving the shift bits up to the sign bit position and separating the 4, 2 & 1 bit shifts with several improvements:
1 - SSE41 targets can use (v)pblendvb directly with the sign bit instead of performing a comparison to feed into a VSELECT node.
2 - pre-SSE41 targets were masking + comparing with an 0x80 constant - we avoid this by using the fact that a set sign bit means a negative integer which can be compared against zero to then feed into VSELECT, avoiding the need for a constant mask (zero generation is much cheaper).
3 - SRA i8 needs to be unpacked to the upper byte of a i16 so that the i16 psraw instruction can be correctly used for sign extension - we have to do more work than for SHL/SRL but perf tests indicate that this is still beneficial.
The i16 implementation is similar but simpler than for i8 - we have to do 8, 4, 2 & 1 bit shifts but less shift masking is involved. SSE41 use of (v)pblendvb requires that the i16 shift amount is splatted to both bytes however.
Tested on SSE2, SSE41 and AVX machines.
Differential Revision: http://reviews.llvm.org/D9474
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239509
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Arnaud A. de Grandmaison [Thu, 11 Jun 2015 07:45:05 +0000 (07:45 +0000)]
[PHIElim] Use ranges and const-ify, NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239508
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Nemanja Ivanovic [Thu, 11 Jun 2015 06:21:25 +0000 (06:21 +0000)]
LLVM support for vector quad bit permute and gather instructions through builtins
This patch corresponds to review:
http://reviews.llvm.org/D10096
This is the back end portion of the patch related to D10095.
The patch adds the instructions and back end intrinsics for:
vbpermq
vgbbd
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239505
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Reid Kleckner [Thu, 11 Jun 2015 01:31:48 +0000 (01:31 +0000)]
Revert "Move dllimport name mangling to IR mangler."
This reverts commit r239437.
This broke clang-cl self-hosts. We'd end up calling the __imp_ symbol
directly instead of using it to do an indirect function call.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239502
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Pete Cooper [Thu, 11 Jun 2015 01:04:56 +0000 (01:04 +0000)]
Remove MachineModuleInfo::UsedFunctions as it has no users.
It hasn't been used since r130964.
This also removes MachineModuleInfo::isUsedFunction and
MachineModuleInfo::AnalyzeModule, both of which were only
there to support UsedFunctions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239501
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Sanjay Patel [Wed, 10 Jun 2015 23:27:33 +0000 (23:27 +0000)]
change assert that will never fire to llvm_unreachable
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239497
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Jingyue Wu [Wed, 10 Jun 2015 22:54:02 +0000 (22:54 +0000)]
[NFC] added a missing space
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239495
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Pete Cooper [Wed, 10 Jun 2015 22:38:46 +0000 (22:38 +0000)]
Stop returning a Use* from allocHungOffUses.
This always just set the User::OperandList which is now set
in that method instead of being returned.
Reviewed by Duncan Exon Smith.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239493
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Pete Cooper [Wed, 10 Jun 2015 22:38:41 +0000 (22:38 +0000)]
Add User::growHungoffUses and use it to grow the hung off uses. NFC.
PhiNode, SwitchInst, LandingPad and IndirectBr all had virtually identical
logic for growing the hung off uses.
Move it to User so that they can all call a single shared implementation.
Their destructors were all empty after this change and were deleted. They all
have virtual clone_impl methods which can be used as vtable anchors.
Reviewed by Duncan Exon Smith.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239492
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Pete Cooper [Wed, 10 Jun 2015 22:38:38 +0000 (22:38 +0000)]
Delete User::dropHungOffUses and move it in to ~User which is the only caller. NFC.
Now that the subclasses which care about hung off uses let ~User clean it up,
there's no need for a separate method. Just inline it to ~User and delete it.
Reviewed by Duncan Exon Smith.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239491
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Pete Cooper [Wed, 10 Jun 2015 22:38:34 +0000 (22:38 +0000)]
Make User track whether a class has 'hung off uses' and delete them in its destructor.
Currently all of the logic for deleting hung off uses, which PHI/switch/etc use,
is in their classes.
This adds a bit to Value which tracks whether that user had hung off uses,
then User can be responsible for clearing them instead of the sub classes.
Note, the bit used here was taken from NumOperands which was 30-bits.
Given the reduction to 29 bits, and the average User being just over 100 bytes,
a single User with 29-bits of num operands would need 50GB of RAM for itself
so its reasonable to assume that 29-bits is enough for now.
This is a step towards hiding all the hung off uses logic in the User.
Reviewed by Duncan Exon Smith.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239490
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Pete Cooper [Wed, 10 Jun 2015 22:38:30 +0000 (22:38 +0000)]
Move the special Phi logic for hung off uses in to User::allocHungOffUses. NFC.
PhiNode's need to allocate space for an array of Use[N] and then BasicBlock*[N].
They had their own allocHungOffUses to handle all of this. This moves the logic
in to User::allocHungOffUses and PhiNode passes in a bool to say to allocate
the BB* space too.
Reviewed by Duncan Exon Smith.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239489
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Peter Collingbourne [Wed, 10 Jun 2015 21:14:34 +0000 (21:14 +0000)]
ArgumentPromotion: Drop sret attribute on functions that are only called directly.
If the first argument to a function is a 'this' argument and the second
has the sret attribute, the ArgumentPromotion pass may promote the 'this'
argument to more than one argument, violating the IR constraint that 'sret'
may only be applied to the first or second argument.
Although this IR constraint is arguably unnecessary, it highlighted the fact
that ArgPromotion does not need to preserve this attribute. Dropping the
attribute reduces register pressure in the backend by avoiding the register
copy required by sret. Because sret implies noalias, we also replace the
former with the latter.
Differential Revision: http://reviews.llvm.org/D10353
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239488
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Sanjay Patel [Wed, 10 Jun 2015 20:32:21 +0000 (20:32 +0000)]
[x86] Add a reassociation optimization to increase ILP via the MachineCombiner pass
This is a reimplementation of D9780 at the machine instruction level rather than the DAG.
Use the MachineCombiner pass to reassociate scalar single-precision AVX additions (just a
starting point; see the TODO comments) to increase ILP when it's safe to do so.
The code is closely based on the existing MachineCombiner optimization that is implemented
for AArch64.
This patch should not cause the kind of spilling tragedy that led to the reversion of r236031.
Differential Revision: http://reviews.llvm.org/D10321
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239486
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Sanjay Patel [Wed, 10 Jun 2015 19:52:58 +0000 (19:52 +0000)]
punctuation policing; NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239484
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Reid Kleckner [Wed, 10 Jun 2015 18:14:07 +0000 (18:14 +0000)]
[WinEH] _except_handlerN uses 0 instead of 1 to indicate catch-all
Our usage of 1 was a holdover from __C_specific_handler.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239482
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Teresa Johnson [Wed, 10 Jun 2015 17:49:28 +0000 (17:49 +0000)]
Add new EliminateAvailableExternally module pass, which is performed in
O2 compiles just before GlobalDCE, unless we are preparing for LTO.
This pass eliminates available externally globals (turning them into
declarations), regardless of whether they are dead/unreferenced, since
we are guaranteed to have a copy available elsewhere at link time.
This enables additional opportunities for GlobalDCE.
If we are preparing for LTO (e.g. a -flto -c compile), the pass is not
included as we want to preserve available externally functions for possible
link time inlining. The FE indicates whether we are doing an -flto compile
via the new PrepareForLTO flag on the PassManagerBuilder.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239480
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Alexey Samsonov [Wed, 10 Jun 2015 17:37:38 +0000 (17:37 +0000)]
[GVN] Set proper debug locations for some instructions created by GVN.
Determining proper debug locations for instructions created in
PHITransAddr is tricky. We use a simple approach here and simply copy
debug locations from instructions computing load address to
"corresponding" instructions re-creating the address computation
in predecessor basic blocks.
This may not always be correct, given all the rearrangement and
simplification going on, and debug locations may jump around a lot,
as the basic blocks we copy locations between may be very far from
each other.
Still, this would work good in most simple cases (e.g. when chain
of address computing instruction is short, or our mapping turns out
to be 1-to-1), and we desire to have *some* reasonable debug locations
associated with newly inserted instructions.
See http://reviews.llvm.org/D10351 review thread for more details.
Test Plan: regression test suite
Reviewers: spatel, dblaikie
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D10351
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239479
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Sanjay Patel [Wed, 10 Jun 2015 17:08:12 +0000 (17:08 +0000)]
fix typo in comment; NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239478
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Colin LeMahieu [Wed, 10 Jun 2015 16:52:32 +0000 (16:52 +0000)]
[Hexagon] Adding decoders for signed operands and ensuring all signed operand types disassemble correctly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239477
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Benjamin Kramer [Wed, 10 Jun 2015 14:43:59 +0000 (14:43 +0000)]
[Hexagon] Make global arrays 'static const'. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239475
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Igor Laevsky [Wed, 10 Jun 2015 13:24:00 +0000 (13:24 +0000)]
[Statepoints] Add test case to check that statepoint is marked with Throwable attribute.
Differential Revision: http://reviews.llvm.org/D10215
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239473
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Igor Laevsky [Wed, 10 Jun 2015 12:31:53 +0000 (12:31 +0000)]
[StatepointLowering] Reuse stack slots across basic blocks
During statepoint lowering we can sometimes avoid spilling of the value if we know that it was already spilled for previous statepoint.
We were doing this by checking if incoming statepoint value was lowered into load from stack slot. This was working only in boundaries of one basic block.
But instead of looking at the lowered node we can look directly at the llvm-ir value and if it was gc.relocate (or some simple modification of it) look up stack slot for it's derived pointer and reuse stack slot from it. This allows us to look across basic block boundaries.
Differential Revision: http://reviews.llvm.org/D10251
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239472
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Daniel Sanders [Wed, 10 Jun 2015 12:11:26 +0000 (12:11 +0000)]
Replace string GNU Triples with llvm::Triple in MCSubtargetInfo and create*MCSubtargetInfo(). NFC.
Summary:
This continues the patch series to eliminate StringRef forms of GNU triples
from the internals of LLVM that began in r239036.
Reviewers: rafael
Reviewed By: rafael
Subscribers: rafael, ted, jfb, llvm-commits, rengolin, jholewinski
Differential Revision: http://reviews.llvm.org/D10311
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239467
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Daniel Sanders [Wed, 10 Jun 2015 10:54:40 +0000 (10:54 +0000)]
Replace string GNU Triples with llvm::Triple in create*MCRelocationInfo(). NFC.
Summary:
This continues the patch series to eliminate StringRef forms of GNU triples
from the internals of LLVM that began in r239036.
Reviewers: rafael
Reviewed By: rafael
Subscribers: rafael, llvm-commits, rengolin
Differential Revision: http://reviews.llvm.org/D10307
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239465
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Daniel Sanders [Wed, 10 Jun 2015 10:35:34 +0000 (10:35 +0000)]
Replace string GNU Triples with llvm::Triple in MCAsmBackend subclasses and create*AsmBackend(). NFC.
Summary:
This continues the patch series to eliminate StringRef forms of GNU triples
from the internals of LLVM that began in r239036.
Reviewers: echristo, rafael
Reviewed By: rafael
Subscribers: rafael, llvm-commits, rengolin
Differential Revision: http://reviews.llvm.org/D10243
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239464
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Elena Demikhovsky [Wed, 10 Jun 2015 06:49:28 +0000 (06:49 +0000)]
AVX-512: Fixed a bug in comparison of i1 vectors.
cmp eq should give kxnor instruction
cmp neq should give kxor
https://llvm.org/bugs/show_bug.cgi?id=23631
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239460
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Yaron Keren [Wed, 10 Jun 2015 06:00:59 +0000 (06:00 +0000)]
Replace magic number 19 with the constant GlobalValueSubClassDataBits.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239459
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Alexei Starovoitov [Wed, 10 Jun 2015 03:06:06 +0000 (03:06 +0000)]
fix crash
fix segfault by checking for UnknownArch, since
getArchTypePrefix() will return nullptr for UnknownArch.
This fixes regression caused by r238424.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239456
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Craig Topper [Wed, 10 Jun 2015 02:07:37 +0000 (02:07 +0000)]
Remove unnecessary conversion from StringRef to std::string and back to StringRef. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239455
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Reid Kleckner [Wed, 10 Jun 2015 01:34:54 +0000 (01:34 +0000)]
[WinEH] Call llvm.stackrestore in __except blocks
We have to do this manually, the runtime only sets up ebp. Fixes a crash
when returning after catching an exception.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239451
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Reid Kleckner [Wed, 10 Jun 2015 01:13:44 +0000 (01:13 +0000)]
Remove safeseh debug print and remove extra braces
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239449
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Reid Kleckner [Wed, 10 Jun 2015 01:02:30 +0000 (01:02 +0000)]
[WinEH] Emit .safeseh directives for all 32-bit exception handlers
Use a "safeseh" string attribute to do this. You would think we chould
just accumulate the set of personalities like we do on dwarf, but this
fails to account for the LSDA-loading thunks we use for
__CxxFrameHandler3. Each of those needs to make it into .sxdata as well.
The string attribute seemed like the most straightforward approach.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239448
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Reid Kleckner [Wed, 10 Jun 2015 00:04:53 +0000 (00:04 +0000)]
Fix -Wsign-compare warning in WinException.cpp
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239445
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Pete Cooper [Tue, 9 Jun 2015 23:33:35 +0000 (23:33 +0000)]
Fix warning of comparing different enums. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239443
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NAKAMURA Takumi [Tue, 9 Jun 2015 23:33:25 +0000 (23:33 +0000)]
Add explicit -mtriple=arm-unknown to llvm/test/CodeGen/ARM/disable-tail-calls.ll, to satisfy *-win32.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239442
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Pete Cooper [Tue, 9 Jun 2015 22:35:55 +0000 (22:35 +0000)]
Revert "Move MCSymbol Value in to the union of Offset and CommonSize."
This reverts commit
2e449ec5bcdf67b52b315b16c2128aaf25d5b73c.
This was svn r239440. Its currently failing an ARM test so reverting while I work out
what to do next.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239441
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Pete Cooper [Tue, 9 Jun 2015 22:21:37 +0000 (22:21 +0000)]
Move MCSymbol Value in to the union of Offset and CommonSize.
It wasn't possible to have a variable Symbol with offset or 'isCommon' so
this just enables better packing of the MCSymbol class.
Reviewed by Rafael Espindola.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239440
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Tobias Edler von Koch [Tue, 9 Jun 2015 22:10:58 +0000 (22:10 +0000)]
[RegisterScavenger] Fix handling of predicated instructions
Summary:
The RegisterScavenger explicitly ignores <kill> flags on operands of
predicated instructions and therefore assumes that such registers remain
live. When it then scavenges such a register, it inserts a spill of this
(killed) register. This is invalid code and gets flagged up by the
verifier.
Nowadays kill flags are set correctly on predicated instructions. This
patch makes the Scavenger respect them.
The bug has so far only been triggered by an internal pass, so I don't
have a test case unfortunately.
Fixes PR23119.
Reviewers: hfinkel, tobiasvk_caf
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D9039
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239439
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Alexey Samsonov [Tue, 9 Jun 2015 22:10:29 +0000 (22:10 +0000)]
[BasicBlockUtils] Set debug locations for instructions created in SplitBlockPredecessors.
Test Plan: regression test suite
Reviewers: eugenis, dblaikie
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D10343
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239438
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Peter Collingbourne [Tue, 9 Jun 2015 22:09:53 +0000 (22:09 +0000)]
Move dllimport name mangling to IR mangler.
This ensures that LTO clients see the correct external symbol name.
Differential Revision: http://reviews.llvm.org/D10318
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239437
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Jingyue Wu [Tue, 9 Jun 2015 21:50:32 +0000 (21:50 +0000)]
[NVPTX] fix a crash bug in NVPTXFavorNonGenericAddrSpaces
Summary:
We used to assume V->RAUW only modifies the operand list of V's user.
However, if V and V's user are Constants, RAUW may replace and invalidate V's
user entirely.
This patch fixes the above issue by letting the caller replace the
operand instead of calling RAUW on Constants.
Test Plan: @nested_const_expr and @rauw in access-non-generic.ll
Reviewers: broune, jholewinski
Reviewed By: broune, jholewinski
Subscribers: jholewinski, llvm-commits
Differential Revision: http://reviews.llvm.org/D10345
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239435
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Peter Collingbourne [Tue, 9 Jun 2015 21:50:22 +0000 (21:50 +0000)]
LibDriver, llvm-lib: introduce.
llvm-lib is intended to be a lib.exe compatible utility that also
understands bitcode. The implementation lives in a library so that
lld can use it to implement /lib.
Differential Revision: http://reviews.llvm.org/D10297
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239434
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Reid Kleckner [Tue, 9 Jun 2015 21:42:19 +0000 (21:42 +0000)]
[WinEH] Add 32-bit SEH state table emission prototype
This gets all the handler info through to the asm printer and we can
look at the .xdata tables now. I've convinced one small catch-all test
case to work, but other than that, it would be a stretch to say this is
functional.
The state numbering algorithm avoids doing any scope reconstruction as
we do for C++ to simplify the implementation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239433
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Chad Rosier [Tue, 9 Jun 2015 20:59:41 +0000 (20:59 +0000)]
[AArch64] Remove an overly conservative check when generating store pairs.
Store instructions do not modify register values and therefore it's safe
to form a store pair even if the source register has been read in between
the two store instructions.
Previously, the read of w1 (see below) prevented the formation of a stp.
str w0, [x2]
ldr w8, [x2, #8]
add w0, w8, w1
str w1, [x2, #4]
ret
We now generate the following code.
stp w0, w1, [x2]
ldr w8, [x2, #8]
add w0, w8, w1
ret
All correctness tests with -Ofast on A57 with Spec200x and EEMBC pass.
Performance results for SPEC2K were within noise.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239432
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Pete Cooper [Tue, 9 Jun 2015 20:58:03 +0000 (20:58 +0000)]
Use AlignOf traits to enable static_assert.
This is better than runtime asserts. Thanks to David Blaikie for the help here.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239431
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Benjamin Kramer [Tue, 9 Jun 2015 20:41:21 +0000 (20:41 +0000)]
Replace loop with std::equal. NFC intended.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239430
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Pete Cooper [Tue, 9 Jun 2015 20:41:08 +0000 (20:41 +0000)]
Reduce duplication in MCSymbol Name handling. NFC>
Based on feedback to r239428 by David Blaikie, use const_cast to reduce
duplication of the const and non-const versions of getNameEntryPtr.
Also have that method return the pointer to the name directly instead
of users having to then get the name from the union.
Finally, add a FIXME that we should use a static_assert once available in
the new operator.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239429
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Pete Cooper [Tue, 9 Jun 2015 19:56:05 +0000 (19:56 +0000)]
Make MCSymbol::Name be a union of uint64_t and a pointer.
This should hopefully fix the 32-bit bots which were allocating space for a pointer
but needed to be aligned to 64-bits.
Now we allocate enough space for a uint64_t and a pointer and cast to the appropriate storage
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239428
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Akira Hatanaka [Tue, 9 Jun 2015 19:07:19 +0000 (19:07 +0000)]
Remove DisableTailCalls from TargetOptions and the code in resetTargetOptions
that was resetting it.
Remove the uses of DisableTailCalls in subclasses of TargetLowering and use
the value of function attribute "disable-tail-calls" instead. Also,
unconditionally add pass TailCallElim to the pipeline and check the function
attribute at the start of runOnFunction to disable the pass on a per-function
basis.
This is part of the work to remove TargetMachine::resetTargetOptions, and since
DisableTailCalls was the last non-fast-math option that was being reset in that
function, we should be able to remove the function entirely after the work to
propagate IR-level fast-math flags to DAG nodes is completed.
Out-of-tree users should remove the uses of DisableTailCalls and make changes
to attach attribute "disable-tail-calls"="true" or "false" to the functions in
the IR.
rdar://problem/
13752163
Differential Revision: http://reviews.llvm.org/D10099
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239427
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Alexei Starovoitov [Tue, 9 Jun 2015 18:53:30 +0000 (18:53 +0000)]
[bpf] enable BPF backend in autoconf build
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239425
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Pete Cooper [Tue, 9 Jun 2015 18:50:18 +0000 (18:50 +0000)]
Change from alignof to llvm::alignOf to appease Visual Studio
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239424
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Pete Cooper [Tue, 9 Jun 2015 18:36:13 +0000 (18:36 +0000)]
Allocate space for MCSymbol::Name only if required.
Similarly to User which allocates a number of Use's prior to the this pointer,
allocate space for the Name* for MCSymbol only when we need a name.
Given that an MCSymbol is 48-bytes on 64-bit systems, this saves a decent % of space.
Given the verify_uselistorder test case with debug info and llc, 50k symbols have names
out of 700k so this optimises for the common case of temporary unnamed symbols.
Reviewed by David Blaikie.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239423
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Arnold Schwaighofer [Tue, 9 Jun 2015 18:19:17 +0000 (18:19 +0000)]
MergeFunctions: Don't replace a weak function use by another equivalent weak function
We don't know whether the weak functions definition is the definitive definition.
rdar://
21303727
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239422
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David Blaikie [Tue, 9 Jun 2015 18:01:51 +0000 (18:01 +0000)]
Revert "[DWARF] Fix a few corner cases in expression emission"
This reverts commit r239380 due to apparently GDB regressions:
http://lab.llvm.org:8011/builders/clang-x86_64-ubuntu-gdb-75/builds/22562
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239420
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Samuel Antao [Tue, 9 Jun 2015 16:29:34 +0000 (16:29 +0000)]
The constant initialization for globals in NVPTX is generated as an
array of bytes. The generation of this byte arrays was expecting
the host to be little endian, which prevents big endian hosts to be
used in the generation of the PTX code. This patch fixes the
problem by changing the way the bytes are extracted so that it
works for either little and big endian.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239412
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Eli Bendersky [Tue, 9 Jun 2015 15:57:30 +0000 (15:57 +0000)]
Add more wrappers for symbol APIs to the C API.
This represents some of the functionality we expose in the llvmlite Python
binding.
Patch by Antoine Pitrou
Differential Revision: http://reviews.llvm.org/D10222
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239411
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Alexei Starovoitov [Tue, 9 Jun 2015 15:46:00 +0000 (15:46 +0000)]
[bpf] make BPF backend non-experimental
only cmake build change. autoconf build and docs will follow
email thread:
http://lists.cs.uiuc.edu/pipermail/llvmdev/2015-June/thread.html#86523
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239410
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Rui Ueyama [Tue, 9 Jun 2015 15:20:42 +0000 (15:20 +0000)]
Remove object_error::success and use std::error_code() instead
make_error_code(object_error) is slow because object::object_category()
uses a ManagedStatic variable. But the real problem is that the function is
called too frequently. This patch uses std::error_code() instead of
object_error::success. In most cases, we return "success", so this patch
reduces number of function calls to that function.
http://reviews.llvm.org/D10333
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239409
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Toma Tabacu [Tue, 9 Jun 2015 13:33:26 +0000 (13:33 +0000)]
Recommit "[mips] [IAS] Restore STI.FeatureBits in .set pop." (r239144).
Specified the llvm namespace for the 2 calls to make_unique() which caused
compilation errors in Visual Studio 2013.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239405
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Elena Demikhovsky [Tue, 9 Jun 2015 13:02:10 +0000 (13:02 +0000)]
X86-MPX: Implemented encoding for MPX instructions.
Added encoding tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239403
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Aaron Ballman [Tue, 9 Jun 2015 12:03:46 +0000 (12:03 +0000)]
Removing spurious semi colons; NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239399
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Toma Tabacu [Tue, 9 Jun 2015 10:43:49 +0000 (10:43 +0000)]
Revert "[mips] [IAS] Add support for BNE and BEQ with an immediate operand." (r239396).
It was breaking buildbots.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239397
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Toma Tabacu [Tue, 9 Jun 2015 10:34:31 +0000 (10:34 +0000)]
[mips] [IAS] Add support for BNE and BEQ with an immediate operand.
Summary:
For some branches, GAS accepts an immediate instead of the 2nd register operand.
We only implement this for BNE and BEQ for now. Other branch instructions can be added later, if needed.
Reviewers: dsanders
Reviewed By: dsanders
Subscribers: seanbruno, emaste, llvm-commits
Differential Revision: http://reviews.llvm.org/D9666
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239396
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Daniel Sanders [Tue, 9 Jun 2015 10:34:05 +0000 (10:34 +0000)]
[nvptx] Only support the 'm' inline assembly memory constraint. NFC.
Summary:
NVPTX doesn't seem to support any additional constraints. Therefore remove
the target hook.
No functional change intended.
Reviewers: jholewinski
Reviewed By: jholewinski
Subscribers: jholewinski, llvm-commits
Differential Revision: http://reviews.llvm.org/D8209
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239395
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Daniel Sanders [Tue, 9 Jun 2015 09:47:46 +0000 (09:47 +0000)]
[ADT] Assert that SmallVectorBase::grow_pod() successfully reallocates memory.
Summary:
If malloc/realloc fails then the SmallVector becomes unusable since begin() and
end() will return NULL. This is unlikely to occur but was the cause of recent
bugpoint test failures on my machine.
It is not clear whether not checking for malloc/realloc failure is a deliberate
decision and adding checks has the potential to impact compiler performance.
Therefore, this patch only adds the check to builds with assertions enabled for
the moment.
Reviewers: bkramer
Reviewed By: bkramer
Subscribers: bkramer, llvm-commits
Differential Revision: http://reviews.llvm.org/D9520
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239392
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Denis Protivensky [Tue, 9 Jun 2015 09:28:37 +0000 (09:28 +0000)]
MergeFunctions: Fix gcc warning in condition
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239391
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NAKAMURA Takumi [Tue, 9 Jun 2015 08:03:33 +0000 (08:03 +0000)]
llvm/test/DebugInfo/X86/expressions.ll: %llc_dwarf shouldn't be used with -mtriple, since %llc_dwarf implies the triple.
In this case, use plain "llc".
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239390
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Keno Fischer [Tue, 9 Jun 2015 02:52:47 +0000 (02:52 +0000)]
Move X86-only test case to appropriate directory
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239384
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Lang Hames [Tue, 9 Jun 2015 02:43:27 +0000 (02:43 +0000)]
[lli] Make the OptLevel (-O=<char>) option accessible to the lazy JIT.
No test case - this only affects generated code performance.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239383
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Keno Fischer [Tue, 9 Jun 2015 01:53:59 +0000 (01:53 +0000)]
[DWARF] Fix a few corner cases in expression emission
Summary: I noticed an object file with `DW_OP_reg4 DW_OP_breg4 0` as a DWARF expression,
which I traced to a missing break (and `++I`) in this code snippet.
While I was at it, I also added support for a few other corner cases
along the same lines that I could think of.
Test Plan: Hand-crafted test case to exercises these cases is included.
Reviewers: echristo, dblaikie, aprantl
Reviewed By: aprantl
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D10302
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239380
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Anna Zaks [Tue, 9 Jun 2015 00:58:08 +0000 (00:58 +0000)]
[asan] Prevent __attribute__((annotate)) triggering errors on Darwin
The following code triggers a fatal error in the compiler instrumentation
of ASan on Darwin because we place the attribute into llvm.metadata section,
which does not have the proper MachO section name.
void foo() __attribute__((annotate("custom")));
void foo() {;}
This commit reorders the checks so that we skip everything in llvm.metadata
first. It also removes the hard failure in case the section name does not
parse. That check will be done lower in the compilation pipeline anyway.
(Reviewed in http://reviews.llvm.org/D9093.)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239379
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Matt Arsenault [Tue, 9 Jun 2015 00:52:41 +0000 (00:52 +0000)]
Implement computeKnownBits for min/max nodes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239378
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Matt Arsenault [Tue, 9 Jun 2015 00:52:37 +0000 (00:52 +0000)]
R600: Switch to using generic min / max nodes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239377
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Matt Arsenault [Tue, 9 Jun 2015 00:31:39 +0000 (00:31 +0000)]
MC: Add target hook to control symbol quoting
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239370
91177308-0d34-0410-b5e6-
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Arnold Schwaighofer [Tue, 9 Jun 2015 00:17:40 +0000 (00:17 +0000)]
Fix unused variable warning
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239369
91177308-0d34-0410-b5e6-
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Jingyue Wu [Tue, 9 Jun 2015 00:05:56 +0000 (00:05 +0000)]
[NVPTX] run SROA after NVPTXFavorNonGenericAddrSpaces
Summary:
This cleans up most allocas NVPTXLowerKernelArgs emits for byval
parameters.
Test Plan: makes bug21465.ll more stronger to verify no redundant local load/store.
Reviewers: eliben, jholewinski
Reviewed By: eliben, jholewinski
Subscribers: jholewinski, llvm-commits
Differential Revision: http://reviews.llvm.org/D10322
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239368
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Arnold Schwaighofer [Tue, 9 Jun 2015 00:03:29 +0000 (00:03 +0000)]
MergeFunctions: Impose a total order on the replacement of functions
We don't want to replace function A by Function B in one module and Function B
by Function A in another module.
If these functions are marked with linkonce_odr we would end up with a function
stub calling B in one module and a function stub calling A in another module. If
the linker decides to pick these two we will have two stubs calling each other.
rdar://
21265586
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239367
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Reid Kleckner [Mon, 8 Jun 2015 22:43:32 +0000 (22:43 +0000)]
[WinEH] Cache declarations of frame intrinsics
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239361
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Reid Kleckner [Mon, 8 Jun 2015 22:12:44 +0000 (22:12 +0000)]
[MC] Use unsigned for the Kind bitfield in MCSymbol
Fixes most of the test suite on Windows with clang-cl.
I'm not sure why the test suite was passing with MSVC 2013. Maybe they
changed their behavior and we are emulating their old sign extension
behavior. I think this deserves more investigation, but I want to green
the bot first.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239357
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Reid Kleckner [Mon, 8 Jun 2015 21:57:57 +0000 (21:57 +0000)]
Fix clang-cl self-host -Wc++11-narrowing bug
Use unsigned as the underlying storage type of the AMDGPU address space
enum.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239355
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Ranjeet Singh [Mon, 8 Jun 2015 21:32:16 +0000 (21:32 +0000)]
[AArch64] AsmParser should be case insensitive about accepting vector register names.
Differential Revision: http://reviews.llvm.org/D10320
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239353
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Keno Fischer [Mon, 8 Jun 2015 20:09:58 +0000 (20:09 +0000)]
[InstrInfo] Refactor foldOperandImpl to thread through InsertPt. NFC
Summary:
This was a longstanding FIXME and is a necessary precursor to cases
where foldOperandImpl may have to create more than one instruction
(e.g. to constrain a register class). This is the split out NFC changes from
D6262.
Reviewers: pete, ributzka, uweigand, mcrosier
Reviewed By: mcrosier
Subscribers: mcrosier, ted, llvm-commits
Differential Revision: http://reviews.llvm.org/D10174
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239336
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Rafael Espindola [Mon, 8 Jun 2015 20:08:55 +0000 (20:08 +0000)]
Fix a regression in .pop_section.
It was calling ChangeSection with the wrong current section, eventually leading
to a crash.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239335
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Simon Pilgrim [Mon, 8 Jun 2015 19:58:43 +0000 (19:58 +0000)]
[X86][SSE] Added lzcnt vector tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239333
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Akira Hatanaka [Mon, 8 Jun 2015 19:03:32 +0000 (19:03 +0000)]
Include header file <functional>.
This is a follow-up to r239325.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239329
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