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Philip Reames [Wed, 23 Sep 2015 18:39:37 +0000 (18:39 +0000)]
[docs] Update DominatorTree docs to clarify expectations around unreachable blocks
Note: I'm am not trying to describe what "should be"; I'm only describing what is true today.
This came out of my recent question to llvm-dev titled: When can the dominator tree not contain a node for a basic block?
Differential Revision: http://reviews.llvm.org/D13078
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248417
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Sanjay Patel [Wed, 23 Sep 2015 18:33:42 +0000 (18:33 +0000)]
[x86] replace integer 'xor' ops with packed SSE FP 'xor' ops when operating on FP scalars
Turn this:
movd %xmm0, %eax
movd %xmm1, %ecx
xorl %eax, %ecx
movd %ecx, %xmm0
into this:
xorps %xmm1, %xmm0
This is related to, but does not solve:
https://llvm.org/bugs/show_bug.cgi?id=22428
This is an extension of:
http://reviews.llvm.org/rL248395
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248415
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Sanjay Patel [Wed, 23 Sep 2015 18:19:07 +0000 (18:19 +0000)]
[x86] replace integer 'or' ops with packed SSE FP 'or' ops when operating on FP scalars
Turn this:
movd %xmm0, %eax
movd %xmm1, %ecx
orl %eax, %ecx
movd %ecx, %xmm0
into this:
orps %xmm1, %xmm0
This is related to, but does not solve:
https://llvm.org/bugs/show_bug.cgi?id=22428
This is an extension of:
http://reviews.llvm.org/rL248395
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248409
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Adrian Prantl [Wed, 23 Sep 2015 18:09:01 +0000 (18:09 +0000)]
Fix the order of operations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248406
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Evgeniy Stepanov [Wed, 23 Sep 2015 18:07:56 +0000 (18:07 +0000)]
Android support for SafeStack.
Add two new ways of accessing the unsafe stack pointer:
* At a fixed offset from the thread TLS base. This is very similar to
StackProtector cookies, but we plan to extend it to other backends
(ARM in particular) soon. Bionic-side implementation here:
https://android-review.googlesource.com/170988.
* Via a function call, as a fallback for platforms that provide
neither a fixed TLS slot, nor a reasonable TLS implementation (i.e.
not emutls).
This is a re-commit of a change in r248357 that was reverted in
r248358.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248405
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Sanjay Patel [Wed, 23 Sep 2015 18:03:37 +0000 (18:03 +0000)]
move call to convertIntLogicToFPLogic up; NFCI
The BEXTR comments didn't make sense before, we may want to extend the
FP logic transform to work on vectors, and this way is more beautiful.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248404
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Adrian Prantl [Wed, 23 Sep 2015 17:59:45 +0000 (17:59 +0000)]
Temporarily make testcase more verbose to debug a msvc buildbot failure.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248403
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Chen Li [Wed, 23 Sep 2015 17:58:44 +0000 (17:58 +0000)]
[Bug 24848] Use range metadata to constant fold comparisons with constant values
Summary:
This is the first part of fixing bug 24848 https://llvm.org/bugs/show_bug.cgi?id=24848.
When range metadata is provided, it should be used to constant fold comparisons with constant values.
Reviewers: sanjoy, hfinkel
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D12988
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248402
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Sanjay Patel [Wed, 23 Sep 2015 17:39:41 +0000 (17:39 +0000)]
[x86] move code for converting int logic to FP logic to a helper function; NFCI
This is a follow-on to:
http://reviews.llvm.org/rL248395
so we can add the call to the or/xor combines too.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248399
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Adrian Prantl [Wed, 23 Sep 2015 17:35:52 +0000 (17:35 +0000)]
dsymutil: Resolve forward decls for types defined in clang modules.
This patch extends llvm-dsymutil's ODR type uniquing machinery to also
resolve forward decls for types defined in clang modules.
http://reviews.llvm.org/D13038
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248398
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Adrian Prantl [Wed, 23 Sep 2015 17:11:10 +0000 (17:11 +0000)]
dsymutil: print a warning when there is a module hash mismatch.
This also updates the module binaries in the test directory because
their module hash mismatched.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248396
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Sanjay Patel [Wed, 23 Sep 2015 17:00:06 +0000 (17:00 +0000)]
[x86] replace integer 'and' ops with packed SSE FP 'and' ops when operating on FP scalars
Turn this:
movd %xmm0, %eax
movd %xmm1, %ecx
andl %eax, %ecx
movd %ecx, %xmm0
into this:
andps %xmm1, %xmm0
This is related to, but does not solve:
https://llvm.org/bugs/show_bug.cgi?id=22428
Differential Revision: http://reviews.llvm.org/D13065
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248395
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Dan Gohman [Wed, 23 Sep 2015 16:59:10 +0000 (16:59 +0000)]
[WebAssembly] Fix hasAddr64 being used before being initializer.
This reverts r248388 and fixes the underlying bug: hasAddr64 was initialized
in runOnMachineFunction, but runOnMachineFunction isn't ever called in
CodeGen/WebAssembly/global.ll since that testcase has no functions. The fix
here is to use AsmPrinter's getPointerSize() as needed to determine the
pointer size instead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248394
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Vedant Kumar [Wed, 23 Sep 2015 15:49:08 +0000 (15:49 +0000)]
[Inline] Use AssumptionCache from the right Function
This changes the behavior of AddAligntmentAssumptions to match its
comment. I.e, prove the asserted alignment in the context of the caller,
not the callee.
Thanks to Mehdi Amini for seeing the issue here! Also to Artur Pilipenko
who also saw a fix for the issue.
rdar://
22521387
Differential Revision: http://reviews.llvm.org/D12997
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248390
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Alexander Kornienko [Wed, 23 Sep 2015 15:41:25 +0000 (15:41 +0000)]
Fix CodeGen/WebAssembly/global.ll test under ASAN.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248388
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David Majnemer [Wed, 23 Sep 2015 15:41:09 +0000 (15:41 +0000)]
[DeadArgElim] Split the invoke successor edge
Invoking a function which returns an aggregate can sometimes be
transformed to return a scalar value. However, this means that we need
to create an insertvalue instruction(s) to recreate the correct
aggregate type. We achieved this by inserting an insertvalue
instruction at the invoke's normal successor. However, this is not
feasible if the normal successor uses the invoke's return value inside a
PHI node.
Instead, split the edge between the invoke and the unwind successor and
create the insertvalue instruction in the new basic block. The new
basic block's successor will be the old invoke successor which leaves
us with IR which is well behaved.
This fixes PR24906.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248387
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Chad Rosier [Wed, 23 Sep 2015 13:51:44 +0000 (13:51 +0000)]
[AArch64] Refactor pre- and post-index merge fuctions into a single function. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248377
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Igor Laevsky [Wed, 23 Sep 2015 11:38:44 +0000 (11:38 +0000)]
[DeadStoreElimination] Remove dead zero store to calloc initialized memory
This change allows dead store elimination to remove zero and null stores into memory freshly allocated with calloc-like function.
Differential Revision: http://reviews.llvm.org/D13021
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248374
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Benjamin Kramer [Wed, 23 Sep 2015 10:38:59 +0000 (10:38 +0000)]
[dsymutil] Plug a memory leak.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248372
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Oliver Stannard [Wed, 23 Sep 2015 09:19:54 +0000 (09:19 +0000)]
[ARM] Add option to force fast-isel
The ARM backend has some logic that only allows the fast-isel to be enabled for
subtargets where it is known to be stable. This adds a backend option to
override this and force the fast-isel to be used for any target, to allow it to
be tested.
This is an ARM-specific option, because no other backend disables the fast-isel
on a per-subtarget basis.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248369
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Simon Pilgrim [Wed, 23 Sep 2015 08:48:33 +0000 (08:48 +0000)]
[X86][SSE] Replace 128-bit SSE41 PMOVSX intrinsics with native IR
This patches removes the x86.sse41.pmovsx* intrinsics, provides a suitable upgrade path and updates relevant tests to sign extend a subvector instead.
LLVM counterpart to D12835
Differential Revision: http://reviews.llvm.org/D13002
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248368
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Sanjoy Das [Wed, 23 Sep 2015 01:59:04 +0000 (01:59 +0000)]
[SCEV] Introduce ScalarEvolution::getOne and getZero.
Summary:
It is fairly common to call SE->getConstant(Ty, 0) or
SE->getConstant(Ty, 1); this change makes such uses a little bit
briefer.
I've refactored the call sites I could find easily to use getZero /
getOne.
Reviewers: hfinkel, majnemer, reames
Subscribers: sanjoy, llvm-commits
Differential Revision: http://reviews.llvm.org/D12947
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248362
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Evgeniy Stepanov [Wed, 23 Sep 2015 01:23:22 +0000 (01:23 +0000)]
Revert "Android support for SafeStack."
test/Transforms/SafeStack/abi.ll breaks when target is not supported;
needs refactoring.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248358
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Evgeniy Stepanov [Wed, 23 Sep 2015 01:03:51 +0000 (01:03 +0000)]
Android support for SafeStack.
Add two new ways of accessing the unsafe stack pointer:
* At a fixed offset from the thread TLS base. This is very similar to
StackProtector cookies, but we plan to extend it to other backends
(ARM in particular) soon. Bionic-side implementation here:
https://android-review.googlesource.com/170988.
* Via a function call, as a fallback for platforms that provide
neither a fixed TLS slot, nor a reasonable TLS implementation (i.e.
not emutls).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248357
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Cong Hou [Wed, 23 Sep 2015 00:34:56 +0000 (00:34 +0000)]
Add a test case for the fix of profile update issue when lowering switch statement.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248356
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Cong Hou [Wed, 23 Sep 2015 00:20:27 +0000 (00:20 +0000)]
Fixed an issue on updating profile data when lowering switch statement.
Fixed the issue that when there is an edge from the jump table to the default statement, we should check it directly instead of checking if the sibling of the jump table header is a successor of the jump table header, which may not be the default statment but a successor of it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248354
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NAKAMURA Takumi [Wed, 23 Sep 2015 00:19:20 +0000 (00:19 +0000)]
dsymutil: Fix a comment. [-Wdocumentation]
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248353
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Adrian Prantl [Tue, 22 Sep 2015 23:42:47 +0000 (23:42 +0000)]
Add a unit test for r248341.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248348
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Adrian Prantl [Tue, 22 Sep 2015 23:21:06 +0000 (23:21 +0000)]
IR: Add a setDWOId() method to DICompileUnit.
Tested via clang.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248342
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Adrian Prantl [Tue, 22 Sep 2015 23:21:03 +0000 (23:21 +0000)]
IR: Fix the return value of DICompileUnit::getDWOId.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248341
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Adrian Prantl [Tue, 22 Sep 2015 23:21:00 +0000 (23:21 +0000)]
Debug Info: Emit the dwo_name only in skeleton CUs, not in DWOs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248340
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Matthias Braun [Tue, 22 Sep 2015 22:37:44 +0000 (22:37 +0000)]
LiveIntervalAnalysis: Avoid multiple connected liveness components
We may have subregister defs which are unused but not discovered and
cleaned up prior to liveness analysis. This creates multiple connected
components in the resulting live range which are forbidden in the
MachineVerifier because they would unnecesarily constrain the register
allocator. Rewrite those dead definitions to define a newly created
virtual register.
Differential Revision: http://reviews.llvm.org/D13035
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248335
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Matthias Braun [Tue, 22 Sep 2015 22:37:42 +0000 (22:37 +0000)]
LiveInterval: Distribute subregister liveranges to new intervals in ConnectedVNInfoEqClasses::Distribute()
This improves ConnectedVNInfoEqClasses::Distribute() to distribute the
segments and value numbers in the subranges instead of conservatively
clearing all subregister info.
No separate test here, just clearing the subrange instead of properly
distributing them would however break my upcoming fix regarding dead super
register definitions.
Differential Revision: http://reviews.llvm.org/D13075
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248334
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Michael Zolotukhin [Tue, 22 Sep 2015 22:27:12 +0000 (22:27 +0000)]
[Unroll] Do not crash trying to propagate a value to vector load.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248333
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Adrian Prantl [Tue, 22 Sep 2015 22:20:50 +0000 (22:20 +0000)]
dsymutil: Follow references to clang modules and recursively clone the
debug info.
This does not yet resolve external type references.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248331
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Michael Zolotukhin [Tue, 22 Sep 2015 21:41:29 +0000 (21:41 +0000)]
[Unroll] Follow-up for r247769: fix a bug in UnrolledInstAnalyzer::visitLoad.
Apart from checking that GlobalVariable is a constant, we should check
that it's not a weak constant, in which case we can't propagate its
value.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248327
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Aaron Ballman [Tue, 22 Sep 2015 21:00:35 +0000 (21:00 +0000)]
Instead of defining the operator delete() function, it is better to delete the function so that any uses (even from within Node or its subclasses) do not accidentally call it. NFC intended.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248320
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Adrian Prantl [Tue, 22 Sep 2015 18:51:01 +0000 (18:51 +0000)]
dsymutil: Make -oso-prepend-path available to DwarfLinker.
NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248312
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Adrian Prantl [Tue, 22 Sep 2015 18:50:58 +0000 (18:50 +0000)]
dsymutil: Make resolveDIEReference and getUnitForOffset static functions.
NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248311
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Adrian Prantl [Tue, 22 Sep 2015 18:50:51 +0000 (18:50 +0000)]
dsymutil: Make DwarfLinker::reportWarning() public. (NFC)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248310
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Davide Italiano [Tue, 22 Sep 2015 17:46:10 +0000 (17:46 +0000)]
Remove macho-dump. Its functionality is now covered by llvm-readobj.
Approved by: Rafael Espindola, Eric Christopher, Jim Grosbach,
Alex Rosenberg
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248302
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Ahmed Bougacha [Tue, 22 Sep 2015 17:22:58 +0000 (17:22 +0000)]
[ARM] Emit clrex in the expanded cmpxchg fail block.
ARM counterpart to r248291:
In the comparison failure block of a cmpxchg expansion, the initial
ldrex/ldxr will not be followed by a matching strex/stxr.
On ARM/AArch64, this unnecessarily ties up the execution monitor,
which might have a negative performance impact on some uarchs.
Instead, release the monitor in the failure block.
The clrex instruction was designed for this: use it.
Also see ARMARM v8-A B2.10.2:
"Exclusive access instructions and Shareable memory locations".
Differential Revision: http://reviews.llvm.org/D13033
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248294
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Ahmed Bougacha [Tue, 22 Sep 2015 17:21:44 +0000 (17:21 +0000)]
[AArch64] Emit clrex in the expanded cmpxchg fail block.
In the comparison failure block of a cmpxchg expansion, the initial
ldrex/ldxr will not be followed by a matching strex/stxr.
On ARM/AArch64, this unnecessarily ties up the execution monitor,
which might have a negative performance impact on some uarchs.
Instead, release the monitor in the failure block.
The clrex instruction was designed for this: use it.
Also see ARMARM v8-A B2.10.2:
"Exclusive access instructions and Shareable memory locations".
Differential Revision: http://reviews.llvm.org/D13033
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248291
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Adrian Prantl [Tue, 22 Sep 2015 15:31:14 +0000 (15:31 +0000)]
Fix a typo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248283
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Benjamin Kramer [Tue, 22 Sep 2015 14:34:57 +0000 (14:34 +0000)]
Make helper function static. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248278
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Daniel Sanders [Tue, 22 Sep 2015 13:36:28 +0000 (13:36 +0000)]
[mips][sched] Split IIBranch into specific instruction classes.
Summary:
Almost no functional change since the InstrItinData's have been duplicated.
The one functional change is to remove IIBranch from the MSA branches. The
classes will be assigned to the MSA instructions as part of implementing
the P5600 scheduler.
II_IndirectBranchPseudo and II_ReturnPseudo can probably be removed. I've
preserved the itinerary information for the corresponding pseudo
instructions to avoid making a functional change to these pseudos in
this patch.
Reviewers: vkalintiris
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D12189
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248273
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Daniel Sanders [Tue, 22 Sep 2015 12:36:28 +0000 (12:36 +0000)]
[mips][sched] Temporarily rename IIAlu to IIM16Alu. NFC.
Summary:
The only instructions left in IIAlu are MIPS16 specific. We're not
implementing a MIPS16 scheduler at this time so rename the class to make it
obvious that they are MIPS16 instructions.
Reviewers: vkalintiris
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D12188
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248267
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Stephen Canon [Tue, 22 Sep 2015 11:43:17 +0000 (11:43 +0000)]
Don't raise inexact when lowering ceil, floor, round, trunc.
The C standard has historically not specified whether or not these functions should raise the inexact flag. Traditionally on Darwin, these functions *did* raise inexact, and the llvm lowerings followed that conventions. n1778 (C bindings for IEEE-754 (2008)) clarifies that these functions should not set inexact. This patch brings the lowerings for arm64 and x86 in line with the newly specified behavior. This also lets us fold some logic into TD patterns, which is nice.
Differential Revision: http://reviews.llvm.org/D12969
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248266
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NAKAMURA Takumi [Tue, 22 Sep 2015 11:19:03 +0000 (11:19 +0000)]
Prune trailing whitespaces.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248265
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NAKAMURA Takumi [Tue, 22 Sep 2015 11:15:07 +0000 (11:15 +0000)]
Untabify.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248264
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NAKAMURA Takumi [Tue, 22 Sep 2015 11:14:39 +0000 (11:14 +0000)]
Reformat blank lines.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248263
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NAKAMURA Takumi [Tue, 22 Sep 2015 11:14:12 +0000 (11:14 +0000)]
Reformat comment lines.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248262
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NAKAMURA Takumi [Tue, 22 Sep 2015 11:13:55 +0000 (11:13 +0000)]
Reformat.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248261
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NAKAMURA Takumi [Tue, 22 Sep 2015 11:10:17 +0000 (11:10 +0000)]
ARMInstrInfo.cpp: Reformat.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248260
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NAKAMURA Takumi [Tue, 22 Sep 2015 11:10:08 +0000 (11:10 +0000)]
Fix utf8 chars.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248259
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Daniel Sanders [Tue, 22 Sep 2015 10:50:09 +0000 (10:50 +0000)]
[mips][ias] Implement .cpreturn directive.
Summary:
Based on a patch by David Chisnall. I've modified the original patch as follows:
* Moved the expansion to the TargetStreamers so that the directive isn't
expanded when emitting assembly.
* Fixed an operand order bug.
* Changed the move instructions from DADDu to OR to match recent changes to GAS.
Reviewers: vkalintiris
Subscribers: llvm-commits, emaste, seanbruno, theraven
Differential Revision: http://reviews.llvm.org/D13017
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248258
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Daniel Sanders [Tue, 22 Sep 2015 10:01:13 +0000 (10:01 +0000)]
[mips][sched] Added class for WSBH
Summary:
No functional change since no InstrItinData is provided.
Reviewers: vkalintiris
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D12190
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248257
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Daniel Sanders [Tue, 22 Sep 2015 09:22:53 +0000 (09:22 +0000)]
[llvm-mc-fuzzer] Support untested instruction discovery for variable length instruction sets like microMIPS.
Summary:
For fixed length instructions, we can use -max_len to limit the fuzzer to a
single instruction. This doesn't work for variable length instruction sets
since a 4-byte input could consist of one 4-byte instruction or two 2-byte
instructions.
This patch adds a --insn-limit to llvm-mc-fuzzer to limit the input in
terms of instructions processed.
Reviewers: kcc
Subscribers: kcc, llvm-commits
Differential Revision: http://reviews.llvm.org/D12960
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248253
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Simon Pilgrim [Tue, 22 Sep 2015 08:16:08 +0000 (08:16 +0000)]
[X86][SSE] Match zero/any extension shuffles that don't start from the first element
This patch generalizes the lowering of shuffles as zero extensions to allow extensions that don't start from the first element. It now recognises extensions starting anywhere in the lower 128-bits or at the start of any higher 128-bit lane.
The motivation was to reduce the number of high cost pshufb calls, but it also improves the SSE2 case as well.
Differential Revision: http://reviews.llvm.org/D12561
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248250
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Craig Topper [Tue, 22 Sep 2015 05:37:16 +0000 (05:37 +0000)]
Remove extra 'nullptr' entry from an array in tablegen register info file. It should never have been accessed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248246
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Craig Topper [Tue, 22 Sep 2015 05:37:14 +0000 (05:37 +0000)]
Fix formatting of a tablegen register info file by putting a line break in a better place.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248245
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Craig Topper [Tue, 22 Sep 2015 05:37:12 +0000 (05:37 +0000)]
Use makeArrayRef and None to simplify some code in a tablegen register info file. Additionally const correct a couple static array.
Previously the code added an extra nullptr entry to a static array and then created an ArrayRef with a size one less than the static array. If there were no other entries the array would just contain the nullptr and the ArrayRef would be crated with size 0.
Instead, put the right number of entries in the array and explicitly emit 'None' if the size would be 0. This allows the static array constructor of makeArrayRef to be used.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248244
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Matt Arsenault [Tue, 22 Sep 2015 04:17:45 +0000 (04:17 +0000)]
AMDGPU: Remove unnecessary check
If the instruction doesn't have enough operands, it
either shouldn't be marked as isCommutable or is malformed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248242
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Matthias Braun [Tue, 22 Sep 2015 03:44:41 +0000 (03:44 +0000)]
LiveIntervalAnalysis: Factor common code into splitSeparateComponents; NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248241
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Davide Italiano [Tue, 22 Sep 2015 02:14:43 +0000 (02:14 +0000)]
[llvm-readobj/MachO] Ensure we always have valid CmdName/SegmentName.
Otherwise we might end up printing garbage while dumping.
Differential Revision: http://reviews.llvm.org/D13041
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248239
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Matthias Braun [Tue, 22 Sep 2015 01:52:44 +0000 (01:52 +0000)]
Remove declarations for methods that do not exist.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248238
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NAKAMURA Takumi [Tue, 22 Sep 2015 01:44:21 +0000 (01:44 +0000)]
Fix r248164. [-Wdocumentation]
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248237
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Evgeniy Stepanov [Tue, 22 Sep 2015 00:44:32 +0000 (00:44 +0000)]
Remove unused TargetTransformInfo dependency from SafeStack pass.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248233
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Michael Zolotukhin [Tue, 22 Sep 2015 00:22:47 +0000 (00:22 +0000)]
[LoopUnswitch] Require DominatorTree info.
Summary:
We should either require the DT info to be available, or check if it's
available in every place we use DT (and we already miss such check in
one place, which causes failures in some cases). As other loop passes
preserve DT and it's usually available, it makes sense to just require
it here.
There is no regression test, because the bug only shows up if pass
manager decides to clean DT info right before LoopUnswitch. If
loop-unswitch is run separately, DT is available, so bug isn't exposed.
Reviewers: chandlerc, hfinkel
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D13036
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248230
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Sanjoy Das [Tue, 22 Sep 2015 00:10:57 +0000 (00:10 +0000)]
[SCEV] Use SaveAndRestore<T> instead of a hand rolled struct; NFCI.
`ClearWalkingBEDominatingCondsOnExit` is exactly `SaveAndRestore<bool>`,
so use `SaveAndRestore<bool>` instead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248227
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Sanjay Patel [Mon, 21 Sep 2015 23:03:16 +0000 (23:03 +0000)]
function names should start with a lower case letter; NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248224
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Sanjay Patel [Mon, 21 Sep 2015 22:47:23 +0000 (22:47 +0000)]
don't repeat function/variable names in header comments; NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248222
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Philip Reames [Mon, 21 Sep 2015 22:27:59 +0000 (22:27 +0000)]
[LICM] Hoist calls to readonly argmemonly functions even with stores in the loop
We know that an argmemonly function can only access memory pointed to by it's pointer arguments. Rather than needing to consider all possible stores as aliasing (as we do for a readonly function), we can only consider the aliasing of the pointer arguments.
Note that this change only addresses hoisting. I'm thinking about how to address speculation safety as well, but that will be a different change.
FYI, argmemonly disallows accessing memory through non-pointer typed arguments.
Differential Revision: http://reviews.llvm.org/D12771
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248220
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Philip Reames [Mon, 21 Sep 2015 22:04:10 +0000 (22:04 +0000)]
Fix for pr24866
Turns out that not every basic block is guaranteed to have a node within the DominatorTree. This is really hard to trigger, but the test case from the PR managed to do so. There's active discussion continuing about what documentation and/or invariants needed cleaned up.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248216
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Mehdi Amini [Mon, 21 Sep 2015 21:29:43 +0000 (21:29 +0000)]
Fix UB: can't bind a reference to nullptr (NFC)
From: Mehdi Amini <mehdi.amini@apple.com>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248213
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David Blaikie [Mon, 21 Sep 2015 21:07:50 +0000 (21:07 +0000)]
auto and range-for-ify some things to make changing container types a bit easier in the (possibly near) future
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248212
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Simon Pilgrim [Mon, 21 Sep 2015 20:32:48 +0000 (20:32 +0000)]
[DAGCombiner] Improve FMA support for interpolation patterns
This patch adds support for combining patterns such as (FMUL(FADD(1.0, x), y)) and (FMUL(FSUB(x, 1.0), y)) to their FMA equivalents.
This is useful in particular for linear interpolation cases such as (FADD(FMUL(x, t), FMUL(y, FSUB(1.0, t))))
Differential Revision: http://reviews.llvm.org/D13003
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248210
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Jeroen Ketema [Mon, 21 Sep 2015 20:28:04 +0000 (20:28 +0000)]
[ARM] Do not scale vext with a factor
The vext pseudo-instruction takes the number of elements that need to be
extracted, not the number of bytes. Hence, use the number of elements
directly instead of scaling them with a factor.
Reviewers: Silviu Baranga, James Molloy
(not reflected in the differential revision)
Differential Revision: http://reviews.llvm.org/D12974
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248208
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Simon Pilgrim [Mon, 21 Sep 2015 20:15:03 +0000 (20:15 +0000)]
[DAGCombiner] Tidy up FMA combine helpers. NFCI.
Based on feedback for D13003.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248206
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James Molloy [Mon, 21 Sep 2015 19:41:19 +0000 (19:41 +0000)]
[LoopUtils,LV] Propagate fast-math flags on generated FCmp instructions
We're currently losing any fast-math flags when synthesizing fcmps for
min/max reductions. In LV, make sure we copy over the scalar inst's
flags. In LoopUtils, we know we only ever match patterns with
hasUnsafeAlgebra, so apply that to any synthesized ops.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248201
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Stephen Canon [Mon, 21 Sep 2015 19:29:25 +0000 (19:29 +0000)]
Remove roundingMode argument in APFloat::mod
Because mod is always exact, this function should have never taken a rounding mode argument. The actual implementation still has issues, which I'll look at resolving in a subsequent patch.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248195
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Rafael Espindola [Mon, 21 Sep 2015 19:17:18 +0000 (19:17 +0000)]
Avoid SEGFAULT if a requested symbol section is absent.
Patch by Igor Kudrin!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248194
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Matt Arsenault [Mon, 21 Sep 2015 18:21:10 +0000 (18:21 +0000)]
Fix accidentally committed debug printing
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248190
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Chandler Carruth [Mon, 21 Sep 2015 18:02:24 +0000 (18:02 +0000)]
[ADT] Remove a couple of the always inline attributes I added.
Based on conversations with Justin and a few others, these constructors
are really useful to have in the executable so that you can call them
from the debugger. After some measurements, these *particular* calls
aren't so problematic as to make them a good tradeoff for always inline.
Please let me know if there are other functions really needed for
debugging. The always inline attribute is a hack that we should only
really employ when it doesn't hurt.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248188
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Marcello Maggioni [Mon, 21 Sep 2015 17:58:14 +0000 (17:58 +0000)]
[DivergenceAnalysis] Separated definition of class into header.
The definition of the DivergenceAnalysis pass was in a CPP
file and wasn't accessible to users of the analysis to get it
through "getAnalysis<>()".
This patch extracts the definition into a separate header that
can be used by users of the analysis to fetch the results.
Patch by Volkan Keles (vkeles@apple.com)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248186
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Matthias Braun [Mon, 21 Sep 2015 17:41:05 +0000 (17:41 +0000)]
SelectionDAG: Use InsertNode for EntryNode
This fixes problems where two nodes have persistent debug id 0 assigned.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248182
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Chandler Carruth [Mon, 21 Sep 2015 17:39:41 +0000 (17:39 +0000)]
[FunctionAttrs] Extract a helper function for the core logic used to
evaluate whether 'readonly' or 'readnone' apply to a given function.
This both reduces indentation and will make it easy to share the logic
with a new pass manager implementation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248181
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Ulrich Weigand [Mon, 21 Sep 2015 17:35:45 +0000 (17:35 +0000)]
[SystemZ] Fix expansion of ISD::FPOW and ISD::FSINCOS
The ISD::FPOW and ISD::FSINCOS opcodes default to Legal, but there
is no legal instruction for those on SystemZ. This could cause
LLVM internal errors. Fixed by setting the operation action to
Expand for those opcodes.
Also added test cases for all other LLVM IR intrinsics that should
generate a library call. (Those already work correctly since the
default operation action is fine.)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248180
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James Molloy [Mon, 21 Sep 2015 16:35:08 +0000 (16:35 +0000)]
Revert "[ARM] Handle +t2dsp feature as an ArchExtKind in ARMTargetParser.def"
This was committed without the code review (http://reviews.llvm.org/D12937) being approved.
This reverts commit r248152.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248174
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Matt Arsenault [Mon, 21 Sep 2015 16:27:22 +0000 (16:27 +0000)]
AMDGPU: Move copy handling under switch like other instructions
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248172
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Sanjay Patel [Mon, 21 Sep 2015 16:09:37 +0000 (16:09 +0000)]
add ShouldChangeType() variant that takes bitwidths
This is more efficient for cases like D12965 where we already have widths.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248170
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Matt Arsenault [Mon, 21 Sep 2015 15:59:46 +0000 (15:59 +0000)]
DAGCombiner: Replace store of FP constant after attemping store merges
If storing multiple FP constants, some subset of the stores
would be replaced with integers due to visit order, so
MergeConsecutiveStores would only partially merge
these.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248169
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Matt Arsenault [Mon, 21 Sep 2015 15:59:43 +0000 (15:59 +0000)]
Factor replacement of stores of FP constants into new function
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248168
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Matt Arsenault [Mon, 21 Sep 2015 15:59:41 +0000 (15:59 +0000)]
Fix missing C++ mode comment
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248167
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Sanjay Patel [Mon, 21 Sep 2015 15:33:26 +0000 (15:33 +0000)]
don't repeat function names in comments; NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248166
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Chad Rosier [Mon, 21 Sep 2015 15:09:11 +0000 (15:09 +0000)]
[Machine Combiner] Refactor machine reassociation code to be target-independent.
No functional change intended.
Patch by Haicheng Wu <haicheng@codeaurora.org>!
http://reviews.llvm.org/D12887
PR24522
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248164
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Artyom Skrobov [Mon, 21 Sep 2015 12:43:10 +0000 (12:43 +0000)]
[ARM] Handle +t2dsp feature as an ArchExtKind in ARMTargetParser.def
Currently, the availability of DSP instructions (ACLE 6.4.7) is handled in a
hand-rolled tricky condition block in tools/clang/lib/Basic/Targets.cpp, with
a FIXME: attached.
This patch changes the handling of +t2dsp to be in line with other
architecture extensions.
Following review comments, also updating the description of FeatureDSPThumb2
in ARM.td.
Differential Revision: http://reviews.llvm.org/D12937
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248152
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Asaf Badouh [Mon, 21 Sep 2015 10:23:53 +0000 (10:23 +0000)]
[X86][AVX512] add masked version for RSQRT14 & RCP14 Scalar FP
Differential Revision: http://reviews.llvm.org/D12524
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248147
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Daniel Sanders [Mon, 21 Sep 2015 09:26:55 +0000 (09:26 +0000)]
[mips] Allow constant expressions in second argument of .cpsetup.
Summary:
Also tightened up the test and made a trivial fix to prevent double-newline
after emitting .cpsetup directives.
Reviewers: vkalintiris
Subscribers: seanbruno, emaste, llvm-commits
Differential Revision: http://reviews.llvm.org/D12956
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248143
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Craig Topper [Mon, 21 Sep 2015 05:32:41 +0000 (05:32 +0000)]
Use makeArrayRef or None to avoid unnecessarily mentioning the ArrayRef type extra times. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@248140
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