oota-llvm.git
8 years agoRemove MachineModuleInfo::UsedFunctions as it has no users.
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agochange assert that will never fire to llvm_unreachable
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[NFC] added a missing space
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoStop returning a Use* from allocHungOffUses.
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoAdd User::growHungoffUses and use it to grow the hung off uses. NFC.
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoDelete User::dropHungOffUses and move it in to ~User which is the only caller. NFC.
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoMake User track whether a class has 'hung off uses' and delete them in its destructor.
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoMove the special Phi logic for hung off uses in to User::allocHungOffUses. NFC.
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoArgumentPromotion: Drop sret attribute on functions that are only called directly.
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[x86] Add a reassociation optimization to increase ILP via the MachineCombiner pass
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agopunctuation policing; NFC
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[WinEH] _except_handlerN uses 0 instead of 1 to indicate catch-all
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoAdd new EliminateAvailableExternally module pass, which is performed in
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[GVN] Set proper debug locations for some instructions created by GVN.
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agofix typo in comment; NFC
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[Hexagon] Adding decoders for signed operands and ensuring all signed operand types...
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[Hexagon] Make global arrays 'static const'. NFC.
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[Statepoints] Add test case to check that statepoint is marked with Throwable attribute.
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[StatepointLowering] Reuse stack slots across basic blocks
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoReplace string GNU Triples with llvm::Triple in MCSubtargetInfo and create*MCSubtarge...
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoReplace string GNU Triples with llvm::Triple in create*MCRelocationInfo(). NFC.
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoReplace string GNU Triples with llvm::Triple in MCAsmBackend subclasses and create...
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoAVX-512: Fixed a bug in comparison of i1 vectors.
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoReplace magic number 19 with the constant GlobalValueSubClassDataBits.
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agofix crash
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoRemove unnecessary conversion from StringRef to std::string and back to StringRef...
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[WinEH] Call llvm.stackrestore in __except blocks
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoRemove safeseh debug print and remove extra braces
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[WinEH] Emit .safeseh directives for all 32-bit exception handlers
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoFix -Wsign-compare warning in WinException.cpp
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoFix warning of comparing different enums. NFC
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoAdd explicit -mtriple=arm-unknown to llvm/test/CodeGen/ARM/disable-tail-calls.ll...
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoRevert "Move MCSymbol Value in to the union of Offset and CommonSize."
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoMove MCSymbol Value in to the union of Offset and CommonSize.
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[RegisterScavenger] Fix handling of predicated instructions
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[BasicBlockUtils] Set debug locations for instructions created in SplitBlockPredecessors.
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoMove dllimport name mangling to IR mangler.
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[NVPTX] fix a crash bug in NVPTXFavorNonGenericAddrSpaces
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoLibDriver, llvm-lib: introduce.
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[WinEH] Add 32-bit SEH state table emission prototype
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[AArch64] Remove an overly conservative check when generating store pairs.
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoUse AlignOf traits to enable static_assert.
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoReplace loop with std::equal. NFC intended.
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoReduce duplication in MCSymbol Name handling. NFC>
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoMake MCSymbol::Name be a union of uint64_t and a pointer.
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoRemove DisableTailCalls from TargetOptions and the code in resetTargetOptions
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[bpf] enable BPF backend in autoconf build
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoChange from alignof to llvm::alignOf to appease Visual Studio
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoAllocate space for MCSymbol::Name only if required.
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoMergeFunctions: Don't replace a weak function use by another equivalent weak function
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoRevert "[DWARF] Fix a few corner cases in expression emission"
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoThe constant initialization for globals in NVPTX is generated as an
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoAdd more wrappers for symbol APIs to the C API.
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[bpf] make BPF backend non-experimental
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoRemove object_error::success and use std::error_code() instead
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoRecommit "[mips] [IAS] Restore STI.FeatureBits in .set pop." (r239144).
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoX86-MPX: Implemented encoding for MPX instructions.
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoRemoving spurious semi colons; NFC.
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoRevert "[mips] [IAS] Add support for BNE and BEQ with an immediate operand." (r239396).
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[mips] [IAS] Add support for BNE and BEQ with an immediate operand.
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[nvptx] Only support the 'm' inline assembly memory constraint. NFC.
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[ADT] Assert that SmallVectorBase::grow_pod() successfully reallocates memory.
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoMergeFunctions: Fix gcc warning in condition
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agollvm/test/DebugInfo/X86/expressions.ll: %llc_dwarf shouldn't be used with -mtriple...
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoMove X86-only test case to appropriate directory
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[lli] Make the OptLevel (-O=<char>) option accessible to the lazy JIT.
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[DWARF] Fix a few corner cases in expression emission
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[asan] Prevent __attribute__((annotate)) triggering errors on Darwin
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoImplement computeKnownBits for min/max nodes
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoR600: Switch to using generic min / max nodes.
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoMC: Add target hook to control symbol quoting
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-b5e6-96231b3b80d8

8 years agoFix unused variable warning
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-b5e6-96231b3b80d8

8 years ago[NVPTX] run SROA after NVPTXFavorNonGenericAddrSpaces
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoMergeFunctions: Impose a total order on the replacement of functions
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[WinEH] Cache declarations of frame intrinsics
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[MC] Use unsigned for the Kind bitfield in MCSymbol
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoFix clang-cl self-host -Wc++11-narrowing bug
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[AArch64] AsmParser should be case insensitive about accepting vector register names.
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[InstrInfo] Refactor foldOperandImpl to thread through InsertPt. NFC
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoFix a regression in .pop_section.
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[X86][SSE] Added lzcnt vector tests.
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoInclude header file <functional>.
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 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoPrefer copy init over direct init. NFC.
Benjamin Kramer [Mon, 8 Jun 2015 18:58:57 +0000 (18:58 +0000)]
Prefer copy init over direct init. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239327 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[ARM] Pass a callback to FunctionPass constructors to enable skipping execution
Akira Hatanaka [Mon, 8 Jun 2015 18:50:43 +0000 (18:50 +0000)]
[ARM] Pass a callback to FunctionPass constructors to enable skipping execution
on a per-function basis.

Previously some of the passes were conditionally added to ARM's pass pipeline
based on the target machine's subtarget. This patch makes changes to add those
passes unconditionally and execute them conditonally based on the predicate
functor passed to the pass constructors. This enables running different sets of
passes for different functions in the module.

rdar://problem/20542263

Differential Revision: http://reviews.llvm.org/D8717

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239325 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoUse a PointerUnion in MCSymbol for Section and Fragment. NFC.
Pete Cooper [Mon, 8 Jun 2015 18:41:57 +0000 (18:41 +0000)]
Use a PointerUnion in MCSymbol for Section and Fragment.  NFC.

The Fragment and Section, and a bool for HasFragment were all used to create
a PointerUnion.  Just use a pointer union instead.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239324 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoRemove includes of MCMachOSymbolFlags.h after it was deleted
Pete Cooper [Mon, 8 Jun 2015 17:25:57 +0000 (17:25 +0000)]
Remove includes of MCMachOSymbolFlags.h after it was deleted

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239318 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoMake flags get/set method protected so that all flags have to be managed by subclasses.
Pete Cooper [Mon, 8 Jun 2015 17:17:30 +0000 (17:17 +0000)]
Make flags get/set method protected so that all flags have to be managed by subclasses.

All of ELF, COFF and MachO now manipulate the flags in helpers so we don't need
anyone to read the flags directly, but instead via those helpers.

Reviewed by Rafael Espíndola.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239317 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoMove all flags logic to MCSymbolMachO.
Pete Cooper [Mon, 8 Jun 2015 17:17:28 +0000 (17:17 +0000)]
Move all flags logic to MCSymbolMachO.

Also delete the now unused MCMachOSymbolFlags.h header as the only enum in there was moved to MCSymbolMachO.

Similarly to ELF and COFF, manipulating the flags is now done via helpers instead of spread
throughout the codebase.

Reviewed by Rafael Espíndola.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239316 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoAdd MCSymbolMachO which will be used to hide the MCSymbolMachO flags.
Pete Cooper [Mon, 8 Jun 2015 17:17:23 +0000 (17:17 +0000)]
Add MCSymbolMachO which will be used to hide the MCSymbolMachO flags.

Reviewed by Rafael Espíndola.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239315 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoMove all of the MCSymbol COFF flags logic in to MCSymbolCOFF.
Pete Cooper [Mon, 8 Jun 2015 17:17:19 +0000 (17:17 +0000)]
Move all of the MCSymbol COFF flags logic in to MCSymbolCOFF.

All flags setting/getting is now done in the class with helper methods instead
of users having to get the bits in the correct order.

Reviewed by Rafael Espíndola.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239314 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoMove COFF Type in to the MCSymbolCOFF class.
Pete Cooper [Mon, 8 Jun 2015 17:17:16 +0000 (17:17 +0000)]
Move COFF Type in to the MCSymbolCOFF class.

The flags field in MCSymbol only needs to be 16-bits on ELF and MachO.
This moves the 16-bit Type out of there so that it can be reduced in size in a future commit.

Reviewed by Rafael Espíndola.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239313 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoAdd MCSymbolCOFF class and use it to get and set the COFF type field.
Pete Cooper [Mon, 8 Jun 2015 17:17:12 +0000 (17:17 +0000)]
Add MCSymbolCOFF class and use it to get and set the COFF type field.

Reviewed by Rafael Espíndola.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239312 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoChange MCSymbol IsELF to an enum to support future MCSymbolCOFF and MCSymbolMachO.
Pete Cooper [Mon, 8 Jun 2015 17:17:09 +0000 (17:17 +0000)]
Change MCSymbol IsELF to an enum to support future MCSymbolCOFF and MCSymbolMachO.

Reviewed by Rafael Espíndola.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239311 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoX86: Reject register operands with obvious type mismatches.
Matthias Braun [Mon, 8 Jun 2015 16:56:23 +0000 (16:56 +0000)]
X86: Reject register operands with obvious type mismatches.

While we have some code to transform specification like {ax} into
{eax}/{rax} if the operand type isn't 16bit, we should reject cases
where there is no sane way to do this, like the i128 type in the
example.

Related to rdar://21042280

Differential Revision: http://reviews.llvm.org/D10260

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239309 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoFix assertion failure in global-merge with unused ConstantExpr
Oliver Stannard [Mon, 8 Jun 2015 16:55:31 +0000 (16:55 +0000)]
Fix assertion failure in global-merge with unused ConstantExpr

The global-merge pass was crashing because it assumes that all ConstantExprs
(reached via the global variables that they use) have at least one user.

I haven't worked out a way to test this, as an unused ConstantExpr cannot be
represented by serialised IR, and global-merge can only be run in llc, which
does not run any passes which can make a ConstantExpr dead.

This (reduced to the point of silliness) C code triggers this bug when compiled
for arm-none-eabi at -O1:

  static a = 7;
  static volatile b[10] = {&a};

  c;
  main() {
    c = 0;
    for (; c < 10;)
      printf(b[c]);
  }

Differential Revision: http://reviews.llvm.org/D10314

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239308 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[Hexagon] Adding functionality for searching for compound instruction pairs. Compoun...
Colin LeMahieu [Mon, 8 Jun 2015 16:34:47 +0000 (16:34 +0000)]
[Hexagon] Adding functionality for searching for compound instruction pairs.  Compound instructions reduce slot resource requirements freeing those packet slots up for more instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239307 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[DAGCombiner] Added CTLZ vector constant folding support.
Simon Pilgrim [Mon, 8 Jun 2015 16:19:00 +0000 (16:19 +0000)]
[DAGCombiner] Added CTLZ vector constant folding support.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239305 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agofix typos; NFC
Sanjay Patel [Mon, 8 Jun 2015 15:21:38 +0000 (15:21 +0000)]
fix typos; NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239303 91177308-0d34-0410-b5e6-96231b3b80d8

8 years agoARM]: Add support for MMFR4_EL1 in assembler
Javed Absar [Mon, 8 Jun 2015 15:01:11 +0000 (15:01 +0000)]
ARM]: Add support for MMFR4_EL1 in assembler

This patch adds support for system register MMFR4_EL1 (memory model feature register) in the assembler.
This register provides information about the implemented memory model and memory management support.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239302 91177308-0d34-0410-b5e6-96231b3b80d8

8 years ago[Mips64][mcjit] Add R_MIPS_PC32 relocation
Petar Jovanovic [Mon, 8 Jun 2015 14:10:23 +0000 (14:10 +0000)]
[Mips64][mcjit] Add R_MIPS_PC32 relocation

This patch adds R_MIPS_PC32 relocation for Mips64.

Patch by Vladimir Radosavljevic.

Differential Revision: http://reviews.llvm.org/D10235

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239301 91177308-0d34-0410-b5e6-96231b3b80d8