Justin Bogner [Thu, 26 Feb 2015 20:06:24 +0000 (20:06 +0000)]
InstrProf: Rename ObjectFileCoverageMappingReader to BinaryCoverageReader
The current name is long and confusing. A shorter one is both easier
to understand and easier to work with.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230675
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Sanjoy Das [Thu, 26 Feb 2015 19:51:35 +0000 (19:51 +0000)]
SCEVExpander incorrectly marks generated subtractions as nuw/nsw
It is not sound to mark the increment operation as `nuw` or `nsw`
based on a proof off of the add recurrence if the increment operation
we emit happens to be a `sub` instruction.
I could not come up with a test case for this -- the cases where
SCEVExpander decides to emit a `sub` instruction is quite small, and I
cannot think of a way I'd be able to get SCEV to prove that the
increment does not overflow in those cases.
Differential Revision: http://reviews.llvm.org/D7899
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230673
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Nico Weber [Thu, 26 Feb 2015 19:48:43 +0000 (19:48 +0000)]
Try to fix a docs link.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230672
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Frederic Riss [Thu, 26 Feb 2015 19:48:07 +0000 (19:48 +0000)]
[MC] Use the non-EH register mapping in the debug_frame section.
On 32bits x86 Darwin, the register mappings for the eh_frane and
debug_frame sections are different. Thus the same CFI instructions
should result in different registers in the object file. The
problem isn't target specific though, but it requires that the
mappings for EH register numbers be different from the standard
Dwarf one.
The patch looks a bit clumsy. LLVM uses the EH mapping as
canonical for everything frame related. Thus we need to do a
double conversion EH -> LLVM -> Non-EH, when emitting the
debug_frame section.
Fixes PR22363.
Differential Revision: http://reviews.llvm.org/D7593
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230670
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Eric Christopher [Thu, 26 Feb 2015 19:46:32 +0000 (19:46 +0000)]
Support bitrig in autoconf build system.
Patch by Dave Huseby.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230669
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Reid Kleckner [Thu, 26 Feb 2015 19:43:20 +0000 (19:43 +0000)]
Don't sibcall between SysV and Win64 convention functions
The shadow stack space expectations won't match.
Fixes PR22709.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230667
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Lang Hames [Thu, 26 Feb 2015 19:28:37 +0000 (19:28 +0000)]
[Orc][Kaleidoscope] Fix a missed symbol mangling operation in the fully lazy tutorial.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230664
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Hal Finkel [Thu, 26 Feb 2015 18:56:03 +0000 (18:56 +0000)]
[InstCombine/PowerPC] Convert aligned QPX load/store intrinsics into loads/stores
InstCombine has long had logic to convert aligned Altivec load/store intrinsics
into regular loads and stores. This mirrors that functionality for QPX vector
load/store intrinsics.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230660
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Paul Robinson [Thu, 26 Feb 2015 18:47:57 +0000 (18:47 +0000)]
When the source has a series of assignments, users reasonably want to
have the debugger step through each one individually. Turn off the
combine for adjacent stores at -O0 so we get this behavior.
Possibly, DAGCombine shouldn't run at all at -O0, but that's for
another day; see PR22346.
Differential Revision: http://reviews.llvm.org/D7181
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230659
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Lang Hames [Thu, 26 Feb 2015 18:36:34 +0000 (18:36 +0000)]
[Orc][Kaleidoscope] More diff-reduction between tutorial versions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230658
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Petar Jovanovic [Thu, 26 Feb 2015 18:35:15 +0000 (18:35 +0000)]
Fix justify error for small structures in varargs for MIPS64BE
There was a problem when passing structures as variable arguments.
The structures smaller than 64 bit were not left justified on MIPS64
big endian. This is now fixed by shifting the value to make it left-
justified when appropriate.
This fixes the bug http://llvm.org/bugs/show_bug.cgi?id=21608
Patch by Aleksandar Beserminji.
Differential Revision: http://reviews.llvm.org/D7881
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230657
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Rafael Espindola [Thu, 26 Feb 2015 18:24:37 +0000 (18:24 +0000)]
gold-plugin: "Upgrade" debug info and handle its warnings.
The gold plugin never calls MaterializeModule, so any old debug info
was not deleted and could cause crashes.
Now that it is being "upgraded", the plugin also has to handle warnings
and create Modules with a nice id (it shows in the warning).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230655
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Sumanth Gundapaneni [Thu, 26 Feb 2015 18:08:41 +0000 (18:08 +0000)]
Use ".arch_extension" ARM directive to support hwdiv on krait
In case of "krait" CPU, asm printer doesn't emit any ".cpu" so the
features bits are not computed. This patch lets the asm printer
emit ".cpu cortex-a9" directive for krait and the hwdiv feature is
enabled through ".arch_extension". In short, krait is treated
as "cortex-a9" with hwdiv. We can not emit ".krait" as CPU since
it is not supported bu GNU GAS yet
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230651
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Sumanth Gundapaneni [Thu, 26 Feb 2015 18:07:35 +0000 (18:07 +0000)]
Use ".arch_extension" ARM directive to specify the additional CPU features
This patch is in response to r223147 where the avaiable features are
computed based on ".cpu" directive. This will work clean for the standard
variants like cortex-a9. For custom variants which rely on standard cpu names
for assembly, the additional features of a CPU should be propagated. This can be
done via ".arch_extension" as long as the assembler supports it. The
implementation for krait along with unit test will be submitted in next patch.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230650
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Adam Nemet [Thu, 26 Feb 2015 17:58:48 +0000 (17:58 +0000)]
[LV/LoopAccesses] Backward dependences are not safe just because the
accesses are via different types
Noticed this while generalizing the code for loop distribution.
I confirmed with Arnold that this was indeed a bug and managed to create
a testcase.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230647
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Tom Stellard [Thu, 26 Feb 2015 17:08:43 +0000 (17:08 +0000)]
R600/SI: Remove M0 from DS assembly strings
This matches the assembly syntax for the proprietary compiler.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230645
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Bruno Cardoso Lopes [Thu, 26 Feb 2015 15:16:09 +0000 (15:16 +0000)]
[X86][MMX] Fix a typo in a couple of tests
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230638
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Bruno Cardoso Lopes [Thu, 26 Feb 2015 15:10:38 +0000 (15:10 +0000)]
[X86][MMX] Remove widening experimental flag from MMX tests.
Turns out that after the past MMX commits, we don't need to rely on this
flag to get better codegen for MMX. Also update the tests to become
triple neutral.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230637
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Michael Kuperstein [Thu, 26 Feb 2015 14:30:09 +0000 (14:30 +0000)]
[X86][Haswell][SchedModel] Fix WriteMULm latency.
The latency for the WriteMULm class was set to 4, which is actually lower than the latency for WriteMULr (5).
A better estimate would be 4 added to WriteMULr, that is, 9.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230634
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Hal Finkel [Thu, 26 Feb 2015 14:22:41 +0000 (14:22 +0000)]
[InstCombine] Add a test for altivec load/store intrinsic simplification
InstCombine has logic to convert aligned Altivec load/store intrinsics into
regular loads and stores. Unfortunately, there seems to be no regression test
covering this behavior. Adding one...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230632
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Vladimir Medic [Thu, 26 Feb 2015 12:29:48 +0000 (12:29 +0000)]
Replace obsolete -mattr=n64 command line option with -target-abi=n64. No functional changes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230628
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Chandler Carruth [Thu, 26 Feb 2015 11:00:40 +0000 (11:00 +0000)]
[x86] Sink the single-input v8i16 lowering code that is actually
formulaic into the top v8i16 lowering routine.
This makes the generalized lowering a completely general and single path
lowering which will allow generalizing it in turn for multiple 128-bit
lanes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230623
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Chandler Carruth [Thu, 26 Feb 2015 10:37:01 +0000 (10:37 +0000)]
[x86] Remove a SimpleTy usage. No need for it here, we already have the
MVT.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230622
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Sanjoy Das [Thu, 26 Feb 2015 08:56:04 +0000 (08:56 +0000)]
IRCE: only touch loops that have been shown to have a high
backedge-taken count in profiliing data.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230619
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Sanjoy Das [Thu, 26 Feb 2015 08:19:31 +0000 (08:19 +0000)]
IRCE: generalize to handle loops with decreasing induction variables.
IRCE can now split the iteration space for loops like:
for (i = n; i >= 0; i--)
a[i + k] = 42; // bounds check on access
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230618
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Chandler Carruth [Thu, 26 Feb 2015 08:19:24 +0000 (08:19 +0000)]
[x86] Make the vector shuffle helpers order the SDLoc and MVT arguments.
This ordering matches that of DAG.getNode.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230617
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Duncan P. N. Exon Smith [Thu, 26 Feb 2015 05:00:42 +0000 (05:00 +0000)]
IR: Use '= default' instead of r230609, NFC
Apparently we can use this now!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230613
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Duncan P. N. Exon Smith [Thu, 26 Feb 2015 04:53:00 +0000 (04:53 +0000)]
FileCheck: Add CHECK-SAME
Add `CHECK-SAME`, which requires that the pattern matches on the *same*
line as the previous `CHECK`/`CHECK-NEXT` -- in other words, no newline
is allowed in the skipped region. This is similar to `CHECK-NEXT`,
which requires exactly 1 newline in the skipped region.
My motivation is to simplify checking the long lines of LLVM assembly
for the new debug info hierarchy. This allows CHECK sequences like the
following:
CHECK: ![[REF]] = !SomeMDNode(
CHECK-SAME: file: ![[FILE:[0-9]+]]
CHECK-SAME: otherField: 93{{[,)]}}
which is equivalent to:
CHECK: ![[REF]] = !SomeMDNode({{.*}}file: ![[FILE:[0-9]+]]{{.*}}otherField: 93{{[,)]}}
While this example just has two fields, many nodes in debug info have
more than that. `CHECK-SAME` will keep the logic easy to follow.
Morever, it enables interleaving `CHECK-NOT`s without allowing newlines.
Consider the following:
CHECK: ![[REF]] = !SomeMDNode(
CHECK-SAME: file: ![[FILE:[0-9]+]]
CHECK-NOT: unexpectedField:
CHECK-SAME: otherField: 93{{[,)]}}
CHECK-NOT: otherUnexpectedField:
CHECK-SAME: )
which doesn't seem to have an equivalent `CHECK` line.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230612
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Duncan P. N. Exon Smith [Thu, 26 Feb 2015 04:41:10 +0000 (04:41 +0000)]
IR: Add default constructor for DIImportedEntity
Add a default constructor for `DIImportedEntity`, to be used in clang in
a follow-up.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230609
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Adam Nemet [Thu, 26 Feb 2015 04:39:09 +0000 (04:39 +0000)]
[LoopAccesses] Add command-line option for RuntimeMemoryCheckThreshold
Also remove the somewhat misleading initializers from
VectorizationFactor and VectorizationInterleave. They will get
initialized with the default ctor since no cl::init is provided.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230608
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Sanjoy Das [Thu, 26 Feb 2015 04:03:31 +0000 (04:03 +0000)]
IRCE: print newline after printing an InductiveRangeCheck.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230607
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Philip Reames [Thu, 26 Feb 2015 01:18:21 +0000 (01:18 +0000)]
[GC docs] Add example IR, assembly, and stackmaps to Statepoint documentation
When I originally committed the statepoint docs, I left placeholders for example IR fragments. I'm finally getting around to filling those in.
I also added IR fragments to illustrate the usage of the PlaceSafepoints pass while I was at it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230601
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David Majnemer [Thu, 26 Feb 2015 01:10:49 +0000 (01:10 +0000)]
Replace a few instances of NULL with nullptr.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230599
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Reid Kleckner [Thu, 26 Feb 2015 00:51:33 +0000 (00:51 +0000)]
Pass /nologo to ml64 for quieter builds
It still prints "Assembling path/to/X86CompilationCallback_Win64.asm",
but linking does the same thing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230596
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Ramkumar Ramachandra [Thu, 26 Feb 2015 00:35:56 +0000 (00:35 +0000)]
PlaceSafepoints: use IRBuilder helpers
Use the IRBuilder helpers for gc.statepoint and gc.result, instead of
coding the construction by hand. Note that the gc.statepoint IRBuilder
handles only CallInst, not InvokeInst; retain that part of hand-coding.
Differential Revision: http://reviews.llvm.org/D7518
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230591
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Eric Christopher [Thu, 26 Feb 2015 00:00:35 +0000 (00:00 +0000)]
Remove a FIXME.
Explanation: This function is in TargetLowering because it uses
RegClassForVT which would need to be moved to TargetRegisterInfo
and would necessitate moving isTypeLegal over as well - a massive
change that would just require TargetLowering having a TargetRegisterInfo
class member that it would use.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230585
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Eric Christopher [Thu, 26 Feb 2015 00:00:33 +0000 (00:00 +0000)]
Fix a couple of depedent->dependent typos.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230584
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Eric Christopher [Thu, 26 Feb 2015 00:00:24 +0000 (00:00 +0000)]
Remove an argument-less call to getSubtargetImpl from TargetLoweringBase.
This required plumbing a TargetRegisterInfo through computeRegisterProperties
and into findRepresentativeClass which uses it for register class
iteration. This required passing a subtarget into a few target specific
initializations of TargetLowering.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230583
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Ramkumar Ramachandra [Wed, 25 Feb 2015 23:55:00 +0000 (23:55 +0000)]
MemDepPrinter: Fix some nits introduced in r228596
Differential Revision: http://reviews.llvm.org/D7644
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230582
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Philip Reames [Wed, 25 Feb 2015 23:52:06 +0000 (23:52 +0000)]
[GC docs] More minor word tweaks to make the GC bits clearer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230581
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Philip Reames [Wed, 25 Feb 2015 23:45:20 +0000 (23:45 +0000)]
[GC Docs] Update LangRef to link to Statepoint docs
Add a brief section linking to the experimental statepoint intrinsics analogous to the one we have linking to patchpoint.
While I'm here, cleanup some wording about what the gc "name" attribute actually means. It's not the name of a *collector* it's the name of the *strategy* which may be compatible with multiple collectors.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230576
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Philip Reames [Wed, 25 Feb 2015 23:22:43 +0000 (23:22 +0000)]
[GC docs] Fill in description of the statepoint-example GC strategy
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230572
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Philip Reames [Wed, 25 Feb 2015 23:07:34 +0000 (23:07 +0000)]
[GC Docs] Minor wording clarification
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230570
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Justin Bogner [Wed, 25 Feb 2015 22:59:20 +0000 (22:59 +0000)]
Object: Handle Mach-O kext bundle files
This particular subtype of Mach-O was missing. Add it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230567
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Justin Bogner [Wed, 25 Feb 2015 22:52:20 +0000 (22:52 +0000)]
InstrProf: Make the __llvm_profile_runtime_user symbol hidden
This symbol exists only to pull in the required pieces of the runtime,
so nothing ever needs to refer to it. Making it hidden avoids the
potential for issues with duplicate symbols when linking profiled
libraries together.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230566
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Duncan P. N. Exon Smith [Wed, 25 Feb 2015 22:46:38 +0000 (22:46 +0000)]
IR: Drop newline from AssemblyWriter::printMDNodeBody()
Remove a newline from `AssemblyWriter::printMDNodeBody()`, and add one
to `AssemblyWriter::writeMDNode()`. NFCI for assembly output.
However, this drops an inconsistent newline from `Metadata::print()`
when `this` is an `MDNode`. Now the newline added by `Metadata::dump()`
won't look so verbose.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230565
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Sanjay Patel [Wed, 25 Feb 2015 22:46:08 +0000 (22:46 +0000)]
only propagate equality comparisons of FP values that we are certain are non-zero
This is a follow-on to r227491 which tightens the check for propagating FP
values. If a non-constant value happens to be a zero, we would hit the same
bug as before.
Bug noted and patch suggested by Eli Friedman.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230564
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Justin Bogner [Wed, 25 Feb 2015 22:44:50 +0000 (22:44 +0000)]
InstrProf: Remove dead code in CoverageMappingReader
Remove a default argument that's never passed and a constructor that's
never called.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230563
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Eric Christopher [Wed, 25 Feb 2015 22:41:30 +0000 (22:41 +0000)]
Move TargetLoweringBase::getTypeConversion to the .cpp file from
the .h file. It's used in only one place (other than recursively)
and there's no need to include it everywhere.
Saves almost 900k from total llvm object file size.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230561
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JF Bastien [Wed, 25 Feb 2015 22:30:51 +0000 (22:30 +0000)]
InstCombine: extract instead of shuffle when performing vector/array type punning
Summary: SROA generates code that isn't quite as easy to optimize and contains unusual-sized shuffles, but that code is generally correct. As discussed in D7487 the right place to clean things up is InstCombine, which will pick up the type-punning pattern and transform it into a more obvious bitcast+extractelement, while leaving the other patterns SROA encounters as-is.
Test Plan: make check
Reviewers: jvoung, chandlerc
Subscribers: llvm-commits
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230560
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Frederic Riss [Wed, 25 Feb 2015 22:30:09 +0000 (22:30 +0000)]
[dwarfdump] Fix frame info register number dump.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230559
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Duncan P. N. Exon Smith [Wed, 25 Feb 2015 22:08:21 +0000 (22:08 +0000)]
IR: Annotate dump methods with LLVM_DUMP_METHOD
It turns out we have a macro to ensure that debuggers can access
`dump()` methods. Use it. Hopefully this will prevent me (and others)
from committing crimes like in r223802 (search for /10000/, or just see
the fix in r224407).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230555
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Frederic Riss [Wed, 25 Feb 2015 22:07:43 +0000 (22:07 +0000)]
Try to appease buildbots.
It seems ArrayRefs to multi-dimensional arrays confuse some compilers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230554
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Hal Finkel [Wed, 25 Feb 2015 21:36:59 +0000 (21:36 +0000)]
[PowerPC] Make LDtocL and friends invariant loads
LDtocL, and other loads that roughly correspond to the TOC_ENTRY SDAG node,
represent loads from the TOC, which is invariant. As a result, these loads can
be hoisted out of loops, etc. In order to do this, we need to generate
GOT-style MMOs for TOC_ENTRY, which requires treating it as a legitimate memory
intrinsic node type. Once this is done, the MMO transfer is automatically
handled for TableGen-driven instruction selection, and for nodes generated
directly in PPCISelDAGToDAG, we need to transfer the MMOs manually.
Also, we were not transferring MMOs associated with pre-increment loads, so do
that too.
Lastly, this fixes an exposed bug where R30 was not added as a defined operand of
UpdateGBR.
This problem was highlighted by an example (used to generate the test case)
posted to llvmdev by Francois Pichet.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230553
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Frederic Riss [Wed, 25 Feb 2015 21:30:22 +0000 (21:30 +0000)]
[dwarfdump] Make debug_frame dump actually useful.
This adds support for pretty-printing instruction operands. The new
output looks like:
00000000 00000010 ffffffff CIE
Version: 1
Augmentation:
Code alignment factor: 1
Data alignment factor: -4
Return address column: 8
DW_CFA_def_cfa: reg4 +4
DW_CFA_offset: reg8 -4
DW_CFA_nop:
DW_CFA_nop:
00000014 00000010 00000000 FDE cie=
00000000 pc=
00000000...
00000022
DW_CFA_advance_loc: 3
DW_CFA_def_cfa_offset: +12
DW_CFA_nop:
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230551
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Frederic Riss [Wed, 25 Feb 2015 21:30:19 +0000 (21:30 +0000)]
[dwarfdump] Don't print meaningless pointer.
CIE pointers were never filled in before, and printing the pointer
is totally pointless anyway.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230550
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Frederic Riss [Wed, 25 Feb 2015 21:30:16 +0000 (21:30 +0000)]
DWARFDebugFrame: Move some code around. NFC.
Move the FrameEntry::dumpInstructions down in the file at some
place where it can see the declarations of FDE and CIE.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230549
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Frederic Riss [Wed, 25 Feb 2015 21:30:13 +0000 (21:30 +0000)]
DWARFDebugFrame: Add some trivial accessors. NFC.
To be used for dumping.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230548
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Frederic Riss [Wed, 25 Feb 2015 21:30:09 +0000 (21:30 +0000)]
DWARFDebugFrame: Actually collect CIEs associated with FDEs.
This is the first commit in a small series aiming at making
debug_frame dump more useful (right now it prints a list of
opeartions without their operands).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230547
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Manman Ren [Wed, 25 Feb 2015 21:20:53 +0000 (21:20 +0000)]
[LTO API] fix memory leakage introduced at r230290.
r230290 released the LLVM module but not the LTOModule.
rdar://
19024554
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230544
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David Majnemer [Wed, 25 Feb 2015 21:13:37 +0000 (21:13 +0000)]
X86, Win64: Allow 'mov' to restore the stack pointer if we have a FP
The Win64 epilogue structure is very restrictive, it permits a very
small number of opcodes and none of them are 'mov'.
This means that given:
mov %rbp, %rsp
pop %rbp
The mov isn't the epilogue, only the pop is. This is problematic unless
a frame pointer is present in which case we are free to do whatever we'd
like in the "body" of the function. If a frame pointer is present,
unwinding will undo the prologue operations in reverse order regardless
of the fact that we are at an instruction which is reseting the stack
pointer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230543
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Lang Hames [Wed, 25 Feb 2015 20:58:28 +0000 (20:58 +0000)]
[Orc][Kaleidoscope] Clean up the Orc/Kaleidoscope tutorials to minimize the diffs
between them.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230542
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Peter Collingbourne [Wed, 25 Feb 2015 20:42:41 +0000 (20:42 +0000)]
LowerBitSets: Align referenced globals.
This change aligns globals to the next highest power of 2 bytes, up to a
maximum of 128. This makes it more likely that we will be able to compress
bit sets with a greater alignment. In many more cases, we can now take
advantage of a new optimization also introduced in this patch that removes
bit set checks if the bit set is all ones.
The 128 byte maximum was found to provide the best tradeoff between instruction
overhead and data overhead in a recent build of Chromium. It allows us to
remove ~2.4MB of instructions at the cost of ~250KB of data.
Differential Revision: http://reviews.llvm.org/D7873
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230540
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Zachary Turner [Wed, 25 Feb 2015 20:42:19 +0000 (20:42 +0000)]
[CMake] Fix the clang-cl self host build.
This allows clang-cl to self-host cleanly with no magic setup
steps required.
After this patch, all you have to do is set CC=CXX=clang-cl and
run cmake -G Ninja.
These changes only exist to support C++ features which are
unsupported in clang-cl, so regardless of whether the user
specifies they want to use them, we still have to disable them.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230539
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Andrew Kaylor [Wed, 25 Feb 2015 20:12:49 +0000 (20:12 +0000)]
Fixing a problem with insert location in WinEH outlining
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230535
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Sanjoy Das [Wed, 25 Feb 2015 20:02:59 +0000 (20:02 +0000)]
Bugfix: SCEVExpander incorrectly marks increment operations as no-wrap
(The change was landed in r230280 and caused the regression PR22674.
This version contains a fix and a test-case for PR22674).
When emitting the increment operation, SCEVExpander marks the
operation as nuw or nsw based on the flags on the preincrement SCEV.
This is incorrect because, for instance, it is possible that {-6,+,1}
is <nuw> while {-6,+,1}+1 = {-5,+,1} is not.
This change teaches SCEV to mark the increment as nuw/nsw only if it
can explicitly prove that the increment operation won't overflow.
Apart from the attached test case, another (more realistic)
manifestation of the bug can be seen in
Transforms/IndVarSimplify/pr20680.ll.
Differential Revision: http://reviews.llvm.org/D7778
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230533
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Hal Finkel [Wed, 25 Feb 2015 18:06:45 +0000 (18:06 +0000)]
[PowerPC] Cleanup unused target-specific SDAG nodes
We had somehow accumulated a few target-specific SDAG nodes dealing with PPC64
TOC access that were referenced only in TableGen patterns. The associated
(pseudo-)instructions are used, but are being generated directly. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230518
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Matthias Braun [Wed, 25 Feb 2015 18:03:50 +0000 (18:03 +0000)]
AArch64: Add debug message for large shift constants.
As requested in code review.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230517
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Sanjay Patel [Wed, 25 Feb 2015 18:00:15 +0000 (18:00 +0000)]
Fix really obscure bug in CannotBeNegativeZero() (PR22688)
With a diabolically crafted test case, we could recurse
through this code and return true instead of false.
The larger engineering crime is the use of magic numbers.
Added FIXME comments for those.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230515
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Chris Lattner [Wed, 25 Feb 2015 17:28:41 +0000 (17:28 +0000)]
fix a typo
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230510
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Vladimir Medic [Wed, 25 Feb 2015 15:24:37 +0000 (15:24 +0000)]
[MIPS]Multiple and add instructions for Mips are currently available in mips32r2/mips64r2 and later but should also be available in mips4, mips5, and mips64. This patch fixes the requested features and updates the corresponding test files.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230500
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Bruno Cardoso Lopes [Wed, 25 Feb 2015 15:14:02 +0000 (15:14 +0000)]
[X86][MMX] Reapply: Add MMX instructions to foldable tables
Reapply r230248.
Teach the peephole optimizer to work with MMX instructions by adding
entries into the foldable tables. This covers folding opportunities not
handled during isel.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230499
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Bruno Cardoso Lopes [Wed, 25 Feb 2015 15:13:52 +0000 (15:13 +0000)]
[X86][MMX] Prevent MMX_MOVD64rm folding
MMX_MOVD64rm zero-extends i32 load results into i64 registers.
The peephole optimizer will try to fold it in other MMX foldable
instructions, the wrong thing to do, since there's no MMX memory
instruction that loads from i32 and does implict zero extension.
Remove 'canFoldAsLoad' from MOVD64rm in order to prevent such folding.
The current MMX tests already test this, but since there are no MMX
instructions in the foldable tables yet, this did not trigger. This
commit prepares the addition of those instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230498
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Renato Golin [Wed, 25 Feb 2015 14:41:06 +0000 (14:41 +0000)]
Improve handling of stack accesses in Thumb-1
Thumb-1 only allows SP-based LDR and STR to be word-sized, and SP-base LDR,
STR, and ADD only allow offsets that are a multiple of 4. Make some changes
to better make use of these instructions:
* Use word loads for anyext byte and halfword loads from the stack.
* Enforce 4-byte alignment on objects accessed in this way, to ensure that
the offset is valid.
* Do the same for objects whose frame index is used, in order to avoid having
to use more than one ADD to generate the frame index.
* Correct how many bits of offset we think AddrModeT1_s has.
Patch by John Brawn.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230496
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Aaron Ballman [Wed, 25 Feb 2015 13:05:24 +0000 (13:05 +0000)]
Silencing a "result of 32-bit shift implicitly converted to 64 bits (was 64-bit shift intended?)" warning in MSVC; NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230489
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Aaron Ballman [Wed, 25 Feb 2015 13:02:23 +0000 (13:02 +0000)]
Silencing a -Wsign-compare warning triggered in MSVC; NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230488
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Vladimir Medic [Wed, 25 Feb 2015 11:43:01 +0000 (11:43 +0000)]
Replace obsolete -mattr=n64 command line option with -target-abi=n64. No functional changes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230482
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NAKAMURA Takumi [Wed, 25 Feb 2015 11:04:36 +0000 (11:04 +0000)]
GlobalLayoutBuilder::addFragment(): Prune incorrect usage of \param(s). [-Wdocumentation]
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230480
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NAKAMURA Takumi [Wed, 25 Feb 2015 11:02:00 +0000 (11:02 +0000)]
Fix UTF8 chars to ASCII.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230479
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Elena Demikhovsky [Wed, 25 Feb 2015 09:46:31 +0000 (09:46 +0000)]
AVX-512: Gather and Scatter patterns
Gather and scatter instructions additionally write to one of the source operands - mask register.
In this case Gather has 2 destination values - the loaded value and the mask.
Till now we did not support code gen pattern for gather - the instruction was generated from
intrinsic only and machine node was hardcoded.
When we introduce the masked_gather node, we need to select instruction automatically,
in the standard way.
I added a flag "hasTwoExplicitDefs" that allows to handle 2 destination operands.
(Some code in the X86InstrFragmentsSIMD.td is commented out, just to split one big
patch in many small patches)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230471
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Charles Davis [Wed, 25 Feb 2015 05:10:25 +0000 (05:10 +0000)]
[IC] Turn non-null MD on pointer loads to range MD on integer loads.
Summary:
This change fixes the FIXME that you recently added when you committed
(a modified version of) my patch. When `InstCombine` combines a load and
store of an pointer to those of an equivalently-sized integer, it currently
drops any `!nonnull` metadata that might be present. This change replaces
`!nonnull` metadata with `!range !{ 1, -1 }` metadata instead.
Reviewers: chandlerc
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D7621
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230462
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Richard Smith [Wed, 25 Feb 2015 03:12:03 +0000 (03:12 +0000)]
Add some missing #includes and forward declarations found by modules build.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230457
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Saleem Abdulrasool [Wed, 25 Feb 2015 02:38:03 +0000 (02:38 +0000)]
build: check if atomic routines are implicitly provided
It is possible for the atomic routines to be provided by the compiler without
requiring any additional libraries. Check if that is the case before checking
for a library.
Patch by Matt Glazar!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230452
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Richard Smith [Wed, 25 Feb 2015 01:44:09 +0000 (01:44 +0000)]
[modules] Add include/llvm/IR/DebugInfoFlags.def to the textual headers list.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230427
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Hal Finkel [Wed, 25 Feb 2015 01:26:59 +0000 (01:26 +0000)]
[PowerPC] Add triples to QPX tests
Some of these tests fail on Darwin systems because of a lack of a triple;
fix that.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230421
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Philip Reames [Wed, 25 Feb 2015 01:23:59 +0000 (01:23 +0000)]
[GC] Document the recently added PlaceSafepoints and RewriteGCForStatepoints passes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230420
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Duncan P. N. Exon Smith [Wed, 25 Feb 2015 01:10:03 +0000 (01:10 +0000)]
llvm-dis: Stop crashing when dropping debug info
Since r199356, we've printed a warning when dropping debug info.
r225562 started crashing on that, since it registered a diagnostic
handler that only expected errors. This fixes the handler to expect
other severities. As a side effect, it now prints "error: " at the
start of error messages, similar to `llvm-as`.
There was a testcase for r199356, but it only really checked the
assembler. Move `test/Bitcode/drop-debug-info.ll` to `test/Assembler`,
and introduce `test/Bitcode/drop-debug-info.3.5.ll` (and companion
`.bc`) to test the bitcode reader.
Note: tools/gold/gold-plugin.cpp has an equivalent bug, but I'm not sure
what the best fix is there. I'll file a PR.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230416
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David Blaikie [Wed, 25 Feb 2015 01:08:52 +0000 (01:08 +0000)]
[opaque pointer type] Bitcode support for explicit type parameter on GEP.
Like r230414, add bitcode support including backwards compatibility, for
an explicit type parameter to GEP.
At the suggestion of Duncan I tried coalescing the two older bitcodes into a
single new bitcode, though I did hit a wrinkle: I couldn't figure out how to
create an explicit abbreviation for a record with a variable number of
arguments (the indicies to the gep). This means the discriminator between
inbounds and non-inbounds gep is a full variable-length field I believe? Is my
understanding correct? Is there a way to create such an abbreviation? Should I
just use two bitcodes as before?
Reviewers: dexonsmith
Differential Revision: http://reviews.llvm.org/D7736
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230415
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David Blaikie [Wed, 25 Feb 2015 01:07:20 +0000 (01:07 +0000)]
[opaque pointer type] bitcode support for explicit type parameter to the load instruction
Summary:
I've taken my best guess at this, but I've cargo culted in places & so
explanations/corrections would be great.
This seems to pass all the tests (check-all, covering clang and llvm) so I
believe that pretty well exercises both the backwards compatibility and common
(same version) compatibility given the number of checked in bitcode files we
already have. Is that a reasonable approach to testing here? Would some more
explicit tests be desired?
1) is this the right way to do back-compat in this case (looking at the number
of entries in the bitcode record to disambiguate between the old schema and
the new?)
2) I don't quite understand the logarithm logic to choose the encoding type of
the type parameter in the abbreviation description, but I found another
instruction doing the same thing & it seems to work. Is that the right
approach?
Reviewers: dexonsmith
Differential Revision: http://reviews.llvm.org/D7655
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230414
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Hal Finkel [Wed, 25 Feb 2015 01:06:45 +0000 (01:06 +0000)]
[PowerPC] Add support for the QPX vector instruction set
This adds support for the QPX vector instruction set, which is used by the
enhanced A2 cores on the IBM BG/Q supercomputers. QPX vectors are 256 bytes
wide, holding 4 double-precision floating-point values. Boolean values, modeled
here as <4 x i1> are actually also represented as floating-point values
(essentially { -1, 1 } for { false, true }). QPX shares many features with
Altivec and VSX, but is distinct from both of them. One major difference is
that, instead of adding completely-separate vector registers, QPX vector
registers are extensions of the scalar floating-point registers (lane 0 is the
corresponding scalar floating-point value). The operations supported on QPX
vectors mirrors that supported on the scalar floating-point values (with some
additional ones for permutations and logical/comparison operations).
I've been maintaining this support out-of-tree, as part of the bgclang project,
for several years. This is not the entire bgclang patch set, but is most of the
subset that can be cleanly integrated into LLVM proper at this time. Adding
this to the LLVM backend is part of my efforts to rebase bgclang to the current
LLVM trunk, but is independently useful (especially for codes that use LLVM as
a JIT in library form).
The assembler/disassembler test coverage is complete. The CodeGen test coverage
is not, but I've included some tests, and more will be added as follow-up work.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230413
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Rafael Espindola [Wed, 25 Feb 2015 00:52:15 +0000 (00:52 +0000)]
Support SHF_MERGE sections in COMDATs.
This patch unifies the comdat and non-comdat code paths. By doing this
it add missing features to the comdat side and removes the fixed
section assumptions from the non-comdat side.
In ELF there is no one true section for "4 byte mergeable" constants.
We are better off computing the required properties of the section
and asking the context for it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230411
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David Blaikie [Wed, 25 Feb 2015 00:51:52 +0000 (00:51 +0000)]
BitcodeWriter: Refactor common computation of bits required for a type index.
Suggested by Duncan. Happy to bikeshed the name, cache the result, etc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230410
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Philip Reames [Wed, 25 Feb 2015 00:22:07 +0000 (00:22 +0000)]
Fix consistently wrong sphinx markup
I'd been using '' where I should have been using ``.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230407
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Philip Reames [Wed, 25 Feb 2015 00:18:04 +0000 (00:18 +0000)]
Update the GC docs to explicitly mention both gcroot and gc.statepoint
Also, fix confusing bit of the gcroot documentation that bit me personally.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230405
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Eric Christopher [Wed, 25 Feb 2015 00:12:11 +0000 (00:12 +0000)]
Make this test even more OS and register allocation neutral.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230404
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Philip Reames [Tue, 24 Feb 2015 23:57:26 +0000 (23:57 +0000)]
[GC] Sync documentation with code naming
Fixing an issue pointed out by Sean Silva. Thanks!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230403
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Philip Reames [Tue, 24 Feb 2015 23:51:37 +0000 (23:51 +0000)]
More GC documentation cleanup
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230402
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Eric Christopher [Tue, 24 Feb 2015 23:43:26 +0000 (23:43 +0000)]
Make this test not dependent upon the triple. All that was needed
was some flexibility in the check line for the comment basic block.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230400
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Philip Reames [Tue, 24 Feb 2015 23:34:24 +0000 (23:34 +0000)]
More GC doc cleanup
Mostly minor wording changes for readability. Nothing major to see here.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230397
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Zachary Turner [Tue, 24 Feb 2015 23:32:47 +0000 (23:32 +0000)]
[CMake] Set policy CMP0051 to OLD globally.
When you use generator expressions in a library sources list,
and then later access the SOURCES property, the OLD behavior
(CMake 3.0 and earlier) would not include these expressions in
the SOURCES property. The NEW behavior (starting in CMake 3.1)
is that they do include the generator expressions in the SOURCES
property.
Differential Revision: http://reviews.llvm.org/D7870
Reviewed By: Chris Bieneman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230396
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