oota-llvm.git
10 years agoReapply "blockfreq: Rewrite BlockFrequencyInfoImpl"
Duncan P. N. Exon Smith [Fri, 18 Apr 2014 17:22:25 +0000 (17:22 +0000)]
Reapply "blockfreq: Rewrite BlockFrequencyInfoImpl"

This reverts commit r206556, effectively reapplying commit r206548 and
its fixups in r206549 and r206550.

In an intervening commit I've added target triples to the tests that
were failing remotely [1] (but passing locally).  I'm hoping the mystery
is solved?  I'll revert this again if the tests are still failing
remotely.

[1]: http://bb.pgr.jp/builders/ninja-x64-msvc-RA-centos6/builds/1816

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206622 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoAdd some target triples for better determinism
Duncan P. N. Exon Smith [Fri, 18 Apr 2014 17:22:19 +0000 (17:22 +0000)]
Add some target triples for better determinism

These tests were failing on some buildbots after r206548 (reverted in
r206556), but passing locally.

They were missing target triples, so maybe that's the problem?

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206621 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoLineIterator: Add DataTypes.h for int64_t on MSVC.
Benjamin Kramer [Fri, 18 Apr 2014 16:57:01 +0000 (16:57 +0000)]
LineIterator: Add DataTypes.h for int64_t on MSVC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206617 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoAdd some missing includes for various standard library implementations.
Benjamin Kramer [Fri, 18 Apr 2014 16:46:29 +0000 (16:46 +0000)]
Add some missing includes for various standard library implementations.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206616 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoMake the copy member of StringRef/ArrayRef generic wrt allocators.
Benjamin Kramer [Fri, 18 Apr 2014 16:36:15 +0000 (16:36 +0000)]
Make the copy member of StringRef/ArrayRef generic wrt allocators.

Doesn't make sense to restrict this to BumpPtrAllocator. While there
replace an explicit loop with std::equal. Some standard libraries know
how to compile this down to a ::memcmp call if possible.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206615 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoAArch64/ARM64: add more NEON tests.
Tim Northover [Fri, 18 Apr 2014 14:54:53 +0000 (14:54 +0000)]
AArch64/ARM64: add more NEON tests.

Mostly no testing this time, since they were just wrangling
target-specific intrinsics.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206613 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoAllocator: Remove ReferenceAdder hack.
Benjamin Kramer [Fri, 18 Apr 2014 14:54:51 +0000 (14:54 +0000)]
Allocator: Remove ReferenceAdder hack.

This was a workaround for compilers that had issues with reference
collapsing.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206612 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoARM64: disable generation of .loh directives outside MachO.
Tim Northover [Fri, 18 Apr 2014 14:54:46 +0000 (14:54 +0000)]
ARM64: disable generation of .loh directives outside MachO.

Part of PR19455.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206611 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoARM64: don't emit .subsections_via_symbols on ELF.
Tim Northover [Fri, 18 Apr 2014 14:54:41 +0000 (14:54 +0000)]
ARM64: don't emit .subsections_via_symbols on ELF.

Part of PR19455.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206610 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoARM64: add extra NEG pattern.
Tim Northover [Fri, 18 Apr 2014 14:54:35 +0000 (14:54 +0000)]
ARM64: add extra NEG pattern.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206609 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoAArch64/ARM64: port more AArch64 tests to ARM64.
Tim Northover [Fri, 18 Apr 2014 13:16:55 +0000 (13:16 +0000)]
AArch64/ARM64: port more AArch64 tests to ARM64.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206592 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoAArch64/ARM64: add non-scalar lowering for more FCVT operations.
Tim Northover [Fri, 18 Apr 2014 13:16:42 +0000 (13:16 +0000)]
AArch64/ARM64: add non-scalar lowering for more FCVT operations.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206591 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoAArch64/ARM64: improve spotting of EXT instructions from VECTOR_SHUFFLE.
Tim Northover [Fri, 18 Apr 2014 12:50:58 +0000 (12:50 +0000)]
AArch64/ARM64: improve spotting of EXT instructions from VECTOR_SHUFFLE.

We couldn't cope if the first mask element was UNDEF before, which
isn't ideal.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206588 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[msan] Add -msan-instrumentation-with-call-threshold.
Evgeniy Stepanov [Fri, 18 Apr 2014 12:17:20 +0000 (12:17 +0000)]
[msan] Add -msan-instrumentation-with-call-threshold.

This flag replaces inline instrumentation for checks and origin stores with
calls into MSan runtime library. This is a workaround for PR17409.

Disabled by default.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206585 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[LCG] Remove all of the complexity stemming from supporting copying.
Chandler Carruth [Fri, 18 Apr 2014 11:02:33 +0000 (11:02 +0000)]
[LCG] Remove all of the complexity stemming from supporting copying.
Reality is that we're never going to copy one of these. Supporting this
was becoming a nightmare because nothing even causes it to compile most
of the time. Lots of subtle errors built up that wouldn't have been
caught by any "normal" testing.

Also, make the move assignment actually work rather than the bogus swap
implementation that would just infloop if used. As part of that, factor
out the graph pointer updates into a helper to share between move
construction and move assignment.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206583 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[Allocator] Fix an obvious think-o with the move assignment
Chandler Carruth [Fri, 18 Apr 2014 11:02:29 +0000 (11:02 +0000)]
[Allocator] Fix an obvious think-o with the move assignment
implementation of the SpecificBumpPtrAllocator -- we have to actually
move the subobject. =] Noticed when using this code more directly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206582 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[LCG] Add support for building persistent and connected SCCs to the
Chandler Carruth [Fri, 18 Apr 2014 10:50:32 +0000 (10:50 +0000)]
[LCG] Add support for building persistent and connected SCCs to the
LazyCallGraph. This is the start of the whole point of this different
abstraction, but it is just the initial bits. Here is a run-down of
what's going on here. I'm planning to incorporate some (or all) of this
into comments going forward, hopefully with better editing and wording.
=]

The crux of the problem with the traditional way of building SCCs is
that they are ephemeral. The new pass manager however really needs the
ability to associate analysis passes and results of analysis passes with
SCCs in order to expose these analysis passes to the SCC passes. Making
this work is kind-of the whole point of the new pass manager. =]

So, when we're building SCCs for the call graph, we actually want to
build persistent nodes that stick around and can be reasoned about
later. We'd also like the ability to walk the SCC graph in more complex
ways than just the traditional postorder traversal of the current CGSCC
walk. That means that in addition to being persistent, the SCCs need to
be connected into a useful graph structure.

However, we still want the SCCs to be formed lazily where possible.

These constraints are quite hard to satisfy with the SCC iterator. Also,
using that would bypass our ability to actually add data to the nodes of
the call graph to facilite implementing the Tarjan walk. So I've
re-implemented things in a more direct and embedded way. This
immediately makes it easy to get the persistence and connectivity
correct, and it also allows leveraging the existing nodes to simplify
the algorithm. I've worked somewhat to make this implementation more
closely follow the traditional paper's nomenclature and strategy,
although it is still a bit obtuse because it isn't recursive, using
an explicit stack and a tail call instead, and it is interruptable,
resuming each time we need another SCC.

The other tricky bit here, and what actually took almost all the time
and trials and errors I spent building this, is exactly *what* graph
structure to build for the SCCs. The naive thing to build is the call
graph in its newly acyclic form. I wrote about 4 versions of this which
did precisely this. Inevitably, when I experimented with them across
various use cases, they became incredibly awkward. It was all
implementable, but it felt like a complete wrong fit. Square peg, round
hole. There were two overriding aspects that pushed me in a different
direction:

1) We want to discover the SCC graph in a postorder fashion. That means
   the root node will be the *last* node we find. Using the call-SCC DAG
   as the graph structure of the SCCs results in an orphaned graph until
   we discover a root.

2) We will eventually want to walk the SCC graph in parallel, exploring
   distinct sub-graphs independently, and synchronizing at merge points.
   This again is not helped by the call-SCC DAG structure.

The structure which, quite surprisingly, ended up being completely
natural to use is the *inverse* of the call-SCC DAG. We add the leaf
SCCs to the graph as "roots", and have edges to the caller SCCs. Once
I switched to building this structure, everything just fell into place
elegantly.

Aside from general cleanups (there are FIXMEs and too few comments
overall) that are still needed, the other missing piece of this is
support for iterating across levels of the SCC graph. These will become
useful for implementing #2, but they aren't an immediate priority.

Once SCCs are in good shape, I'll be working on adding mutation support
for incremental updates and adding the pass manager that this analysis
enables.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206581 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoX86: Pattern match scalar loads + vcvtph2ps into just vcvtph2ps.
Benjamin Kramer [Fri, 18 Apr 2014 10:45:33 +0000 (10:45 +0000)]
X86: Pattern match scalar loads + vcvtph2ps into just vcvtph2ps.

vcvtph2ps only reads the lower 64 bits of the address passed to the
intrinsic.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206579 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoRevert r206565 (and r206566 which updated tests).
Chandler Carruth [Fri, 18 Apr 2014 09:35:51 +0000 (09:35 +0000)]
Revert r206565 (and r206566 which updated tests).

This commit was attributed to a different person from the person who
posted the patch to the list, and the person who posted it the list
claimed when they did that they were not the author, but that the author
was yet a third person. I don't know what is going on here, but
reverting until the attribution is clear and the author has explicitly
contributed the patch.

Also, the review hasn't really involved any of the MC maintainers and
that seems questionable too.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206576 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoAArch64/ARM64: port atomics test to ARM64.
Tim Northover [Fri, 18 Apr 2014 09:31:31 +0000 (09:31 +0000)]
AArch64/ARM64: port atomics test to ARM64.

Covers quite a few extra instructions (like any of the max/min ones
which were broken until recently on ARM64).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206575 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoAArch64/ARM64: spot a greater variety of concat_vector operations.
Tim Northover [Fri, 18 Apr 2014 09:31:27 +0000 (09:31 +0000)]
AArch64/ARM64: spot a greater variety of concat_vector operations.

Code mostly copied from AArch64, just tidied up a trifle and plumbed
into the ARM64 way of doing things.

This also enables the AArch64 tests which inspired the previous
untested commits.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206574 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoARM64: implement cunning optimisation from AArch64
Tim Northover [Fri, 18 Apr 2014 09:31:20 +0000 (09:31 +0000)]
ARM64: implement cunning optimisation from AArch64

A vector extract followed by a dup can become a single instruction even if the
types don't match. AArch64 handled this in ISelLowering, but a few reasonably
simple patterns can take care of it in TableGen, so that's where I've put it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206573 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoARM64: spot a vector_shuffle that maps to INS and expand.
Tim Northover [Fri, 18 Apr 2014 09:31:15 +0000 (09:31 +0000)]
ARM64: spot a vector_shuffle that maps to INS and expand.

Tests will be coming very shortly when all the optimisations needed to
support AArch64's neon-copy.ll file are committed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206572 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoARM64: nick some AArch64 patterns for extract/insert -> INS.
Tim Northover [Fri, 18 Apr 2014 09:31:11 +0000 (09:31 +0000)]
ARM64: nick some AArch64 patterns for extract/insert -> INS.

Tests will be committed shortly when all optimisations needed to
support AArch64's neon-copy.ll file are supported.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206571 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoAArch64/ARM64: emit all vector FP comparisons as such.
Tim Northover [Fri, 18 Apr 2014 09:31:07 +0000 (09:31 +0000)]
AArch64/ARM64: emit all vector FP comparisons as such.

ARM64 was scalarizing some vector comparisons which don't quite map to
AArch64's compare and mask instructions. AArch64's approach of sacrificing a
little efficiency to emulate them with the limited set available was better, so
I ported it across.

More "inspired by" than copy/paste since the backend's internal expectations
were a bit different, but the tests were invaluable.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206570 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoAArch64/ARM64: port BSL logic from AArch64 & enable test.
Tim Northover [Fri, 18 Apr 2014 09:31:01 +0000 (09:31 +0000)]
AArch64/ARM64: port BSL logic from AArch64 & enable test.

I enhanced it a little in the process. The decision shouldn't really be beased
on whether a BUILD_VECTOR is a splat: any set of constants will do the job
provided they're related in the correct way.

Also, the BUILD_VECTOR could be any operand of the incoming AND nodes, so it's
best to check for all 4 possibilities rather than assuming it'll be the RHS.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206569 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoAArch64/ARM64: copy byval implementation from AArch64.
Tim Northover [Fri, 18 Apr 2014 09:30:52 +0000 (09:30 +0000)]
AArch64/ARM64: copy byval implementation from AArch64.

It's not actually used to handle C or C++ ABI rules on ARM64, but could well be
emitted by other language front-ends, so it's as well to have a sensible
implementation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206568 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoAdd missing config file for newly added test case introduced by r206563.
Jiangning Liu [Fri, 18 Apr 2014 09:05:50 +0000 (09:05 +0000)]
Add missing config file for newly added test case introduced by r206563.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206567 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoUpdated test with register names following r206565.
Yaron Keren [Fri, 18 Apr 2014 08:50:09 +0000 (08:50 +0000)]
Updated test with register names following r206565.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206566 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoPatch by Ray Donnelly.
Yaron Keren [Fri, 18 Apr 2014 08:03:38 +0000 (08:03 +0000)]
Patch by Ray Donnelly.

Emit WIN64 SEH registers by name instead of just number.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206565 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[asan] one more workaround for PR17409: don't do BB-level coverage instrumentation...
Kostya Serebryany [Fri, 18 Apr 2014 08:02:42 +0000 (08:02 +0000)]
[asan] one more workaround for PR17409: don't do BB-level coverage instrumentation if there are more than N (=1500) basic blocks. This makes ASanCoverage work on libjpeg_turbo/jchuff.c used by Chrome, which has 1824 BBs

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206564 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoThis commit allows vectorized loops to be unrolled by a factor of 2 for AArch64.
Jiangning Liu [Fri, 18 Apr 2014 07:57:54 +0000 (07:57 +0000)]
This commit allows vectorized loops to be unrolled by a factor of 2 for AArch64.
A new test case is also added for ARM64.

Patched by Z.Zheng

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206563 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoR600: Minor cleanups.
Matt Arsenault [Fri, 18 Apr 2014 07:40:20 +0000 (07:40 +0000)]
R600: Minor cleanups.

Fix indentation, better line wrapping, unused includes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206562 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[ExecutionEngine] Allow JIT clients to enable/disable module verification.
Lang Hames [Fri, 18 Apr 2014 06:48:23 +0000 (06:48 +0000)]
[ExecutionEngine] Allow JIT clients to enable/disable module verification.

Previously module verification was always enabled, with no way to turn it off.
As of this commit, module verification is on by default in Debug builds, and off
by default in release builds. The default behaviour can be overridden by calling
setVerifyModules(bool) on the JIT instance (this works for both the old JIT, and
MCJIT).

<rdar://problem/16150008>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206561 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoThis is one of the optimizations ported from ARM64 to AArch64 to address the performa...
Jiangning Liu [Fri, 18 Apr 2014 05:58:09 +0000 (05:58 +0000)]
This is one of the optimizations ported from ARM64 to AArch64 to address the performance gap between these two back ends. The test case newly added for AArch64 already exists in ARM64.

Patched by Z.Zheng

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206559 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoR600/SI: Try to use scalar BFE.
Matt Arsenault [Fri, 18 Apr 2014 05:19:26 +0000 (05:19 +0000)]
R600/SI: Try to use scalar BFE.

Use scalar BFE with constant shift and offset when possible.
This is complicated by the fact that the scalar version packs
the two operands of the vector version into one.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206558 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoThis commit enables unaligned memory accesses of vector types on AArch64 back end...
Jiangning Liu [Fri, 18 Apr 2014 03:58:38 +0000 (03:58 +0000)]
This commit enables unaligned memory accesses of vector types on AArch64 back end. This should boost vectorized code performance.

Patched by Z. Zheng

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206557 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoRevert "blockfreq: Rewrite BlockFrequencyInfoImpl"
Duncan P. N. Exon Smith [Fri, 18 Apr 2014 02:17:43 +0000 (02:17 +0000)]
Revert "blockfreq: Rewrite BlockFrequencyInfoImpl"

This reverts commits r206548, r206549 and r206549.

There are some unit tests failing that aren't failing locally [1], so
reverting until I have time to investigate.

[1]: http://bb.pgr.jp/builders/ninja-x64-msvc-RA-centos6/builds/1816

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206556 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoOnDiskHashTable: Provide iterator_range for keys and data
Justin Bogner [Fri, 18 Apr 2014 02:10:26 +0000 (02:10 +0000)]
OnDiskHashTable: Provide iterator_range for keys and data

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206555 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoblockfreq: Really fix r206548 (and r206549)
Duncan P. N. Exon Smith [Fri, 18 Apr 2014 02:10:09 +0000 (02:10 +0000)]
blockfreq: Really fix r206548 (and r206549)

Turns out this code is dead.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206554 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoc++11: Tidy up tblgen w/ range loops.
Jim Grosbach [Fri, 18 Apr 2014 02:09:07 +0000 (02:09 +0000)]
c++11: Tidy up tblgen w/ range loops.

IntrInfoEmitter cleanup.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206553 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoiterator access to scheduling classes
Jim Grosbach [Fri, 18 Apr 2014 02:09:04 +0000 (02:09 +0000)]
iterator access to scheduling classes

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206552 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoiterator_range accessor for CodeGenTarget instruction list.
Jim Grosbach [Fri, 18 Apr 2014 02:09:02 +0000 (02:09 +0000)]
iterator_range accessor for CodeGenTarget instruction list.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206551 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoiterator based accessors for CodeGenInstruction operand list.
Jim Grosbach [Fri, 18 Apr 2014 02:08:58 +0000 (02:08 +0000)]
iterator based accessors for CodeGenInstruction operand list.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206550 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoblockfreq: Fixing MSVC after r206548?
Duncan P. N. Exon Smith [Fri, 18 Apr 2014 02:06:24 +0000 (02:06 +0000)]
blockfreq: Fixing MSVC after r206548?

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206549 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoblockfreq: Rewrite BlockFrequencyInfoImpl
Duncan P. N. Exon Smith [Fri, 18 Apr 2014 01:57:45 +0000 (01:57 +0000)]
blockfreq: Rewrite BlockFrequencyInfoImpl

Rewrite the shared implementation of BlockFrequencyInfo and
MachineBlockFrequencyInfo entirely.

The old implementation had a fundamental flaw:  precision losses from
nested loops (or very wide branches) compounded past loop exits (and
convergence points).

The @nested_loops testcase at the end of
test/Analysis/BlockFrequencyAnalysis/basic.ll is motivating.  This
function has three nested loops, with branch weights in the loop headers
of 1:4000 (exit:continue).  The old analysis gives non-sensical results:

    Printing analysis 'Block Frequency Analysis' for function 'nested_loops':
    ---- Block Freqs ----
     entry = 1.0
     for.cond1.preheader = 1.00103
     for.cond4.preheader = 5.5222
     for.body6 = 18095.19995
     for.inc8 = 4.52264
     for.inc11 = 0.00109
     for.end13 = 0.0

The new analysis gives correct results:

    Printing analysis 'Block Frequency Analysis' for function 'nested_loops':
    block-frequency-info: nested_loops
     - entry: float = 1.0, int = 8
     - for.cond1.preheader: float = 4001.0, int = 32007
     - for.cond4.preheader: float = 16008001.0, int = 128064007
     - for.body6: float = 64048012001.0, int = 512384096007
     - for.inc8: float = 16008001.0, int = 128064007
     - for.inc11: float = 4001.0, int = 32007
     - for.end13: float = 1.0, int = 8

Most importantly, the frequency leaving each loop matches the frequency
entering it.

The new algorithm leverages BlockMass and PositiveFloat to maintain
precision, separates "probability mass distribution" from "loop
scaling", and uses dithering to eliminate probability mass loss.  I have
unit tests for these types out of tree, but it was decided in the review
to make the classes private to BlockFrequencyInfoImpl, and try to shrink
them (or remove them entirely) in follow-up commits.

The new algorithm should generally have a complexity advantage over the
old.  The previous algorithm was quadratic in the worst case.  The new
algorithm is still worst-case quadratic in the presence of irreducible
control flow, but it's linear without it.

The key difference between the old algorithm and the new is that control
flow within a loop is evaluated separately from control flow outside,
limiting propagation of precision problems and allowing loop scale to be
calculated independently of mass distribution.  Loops are visited
bottom-up, their loop scales are calculated, and they are replaced by
pseudo-nodes.  Mass is then distributed through the function, which is
now a DAG.  Finally, loops are revisited top-down to multiply through
the loop scales and the masses distributed to pseudo nodes.

There are some remaining flaws.

  - Irreducible control flow isn't modelled correctly.  LoopInfo and
    MachineLoopInfo ignore irreducible edges, so this algorithm will
    fail to scale accordingly.  There's a note in the class
    documentation about how to get closer.  See also the comments in
    test/Analysis/BlockFrequencyInfo/irreducible.ll.

  - Loop scale is limited to 4096 per loop (2^12) to avoid exhausting
    the 64-bit integer precision used downstream.

  - The "bias" calculation proposed on llvmdev is *not* incorporated
    here.  This will be added in a follow-up commit, once comments from
    this review have been handled.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206548 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoR600/SI: Match sign_extend_inreg to s_sext_i32_i8 and s_sext_i32_i16
Matt Arsenault [Fri, 18 Apr 2014 01:53:18 +0000 (01:53 +0000)]
R600/SI: Match sign_extend_inreg to s_sext_i32_i8 and s_sext_i32_i16

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206547 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoFix example for VS2012.
Paul Robinson [Fri, 18 Apr 2014 01:20:08 +0000 (01:20 +0000)]
Fix example for VS2012.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206544 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoPMBuilder: Expose an option to disable tail calls
Duncan P. N. Exon Smith [Fri, 18 Apr 2014 01:05:15 +0000 (01:05 +0000)]
PMBuilder: Expose an option to disable tail calls

Adds API to allow frontends to disable tail calls in PassManagerBuilder.

<rdar://problem/16050591>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206542 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoR600/SI: Use SReg_64 instead of VSrc_64 when selecting BUILD_PAIR
Tom Stellard [Fri, 18 Apr 2014 00:36:21 +0000 (00:36 +0000)]
R600/SI: Use SReg_64 instead of VSrc_64 when selecting BUILD_PAIR

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206541 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[ARM64,C++11] Range'ify another loop.
Jim Grosbach [Thu, 17 Apr 2014 23:41:57 +0000 (23:41 +0000)]
[ARM64,C++11] Range'ify another loop.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206539 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoFix bug 19437 - Only add discriminators for DWARF 4 and above.
Diego Novillo [Thu, 17 Apr 2014 22:33:50 +0000 (22:33 +0000)]
Fix bug 19437 - Only add discriminators for DWARF 4 and above.

Summary:
This prevents the discriminator generation pass from triggering if
the DWARF version being used in the module is prior to 4.

Reviewers: echristo, dblaikie

CC: llvm-commits
Differential Revision: http://reviews.llvm.org/D3413

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206507 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoremove some dead code
Nuno Lopes [Thu, 17 Apr 2014 22:26:44 +0000 (22:26 +0000)]
remove some dead code

 lib/Analysis/IPA/InlineCost.cpp         |   18 ------------------
 lib/Analysis/RegionPass.cpp             |    1 -
 lib/Analysis/TypeBasedAliasAnalysis.cpp |    1 -
 lib/Transforms/Scalar/LoopUnswitch.cpp  |   21 ---------------------
 lib/Transforms/Utils/LCSSA.cpp          |    2 --
 lib/Transforms/Utils/LoopSimplify.cpp   |    6 ------
 utils/TableGen/AsmWriterEmitter.cpp     |   13 -------------
 utils/TableGen/DFAPacketizerEmitter.cpp |    7 -------
 utils/TableGen/IntrinsicEmitter.cpp     |    2 --
 9 files changed, 71 deletions(-)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206506 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoStart pushing changes for Mips Fast-Isel
Reed Kotler [Thu, 17 Apr 2014 22:15:34 +0000 (22:15 +0000)]
Start pushing changes for Mips Fast-Isel

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206505 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoMake test/CodeGen/ARM64/vector-insertion.ll explicitly select neon syntax
Louis Gerbarg [Thu, 17 Apr 2014 21:32:41 +0000 (21:32 +0000)]
Make test/CodeGen/ARM64/vector-insertion.ll explicitly select neon syntax

Change the command line vector-insertion.ll to explicitly set the neon syntax
to apple so that buildbots that default to other syntaxes won't fail.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206502 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoR600: Add comment clariying use of sext for result of MUL_U24
Tom Stellard [Thu, 17 Apr 2014 21:00:13 +0000 (21:00 +0000)]
R600: Add comment clariying use of sext for result of MUL_U24

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206501 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoR600/SI: Stop using i128 as the resource descriptor type
Tom Stellard [Thu, 17 Apr 2014 21:00:11 +0000 (21:00 +0000)]
R600/SI: Stop using i128 as the resource descriptor type

Having i128 as a legal type complicates the legalization phase.  v4i32
is already a legal type, so we will use that instead.

This fixes several piglit tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206500 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoR600/SI: Change default register class for i32 to SReg_32
Tom Stellard [Thu, 17 Apr 2014 21:00:09 +0000 (21:00 +0000)]
R600/SI: Change default register class for i32 to SReg_32

SIFixSGPRCopies is smart enough to handle this now.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206499 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoR600/SI: Teach SIInstrInfo::moveToVALU() how to handle PHI instructions
Tom Stellard [Thu, 17 Apr 2014 21:00:07 +0000 (21:00 +0000)]
R600/SI: Teach SIInstrInfo::moveToVALU() how to handle PHI instructions

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206498 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoR600/SI: Legalize operands after changing dst reg in FixSGPRCopies
Tom Stellard [Thu, 17 Apr 2014 21:00:01 +0000 (21:00 +0000)]
R600/SI: Legalize operands after changing dst reg in FixSGPRCopies

Otherwise we may not legalize some illegal REG_SEQUENCE instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206497 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoImprove ARM64 vector creation
Louis Gerbarg [Thu, 17 Apr 2014 20:51:50 +0000 (20:51 +0000)]
Improve ARM64 vector creation

This patch improves the performance of vector creation in caseiswhere where
several of the lanes in the vector are a constant floating point value. It
also includes new patterns to fold together some of the instructions when the
value is 0.0f. Test cases included.

rdar://16349427

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206496 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoARM64: [su]xtw use W regs as inputs, not X regs.
Jim Grosbach [Thu, 17 Apr 2014 20:47:31 +0000 (20:47 +0000)]
ARM64: [su]xtw use W regs as inputs, not X regs.

Update the SXT[BHW]/UXTW instruction aliases and the shifted reg addressing
mode handling.

PR19455 and rdar://16650642

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206495 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoManagedStatic is never built with a null constructor, remove support for it.
David Blaikie [Thu, 17 Apr 2014 20:30:35 +0000 (20:30 +0000)]
ManagedStatic is never built with a null constructor, remove support for it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206492 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoARM64: switch to IR-based atomic operations.
Tim Northover [Thu, 17 Apr 2014 20:00:33 +0000 (20:00 +0000)]
ARM64: switch to IR-based atomic operations.

Goodbye code!

(Game: spot the bug fixed by the change).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206490 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoARM64: add acquire/release versions of the existing atomic intrinsics.
Tim Northover [Thu, 17 Apr 2014 20:00:24 +0000 (20:00 +0000)]
ARM64: add acquire/release versions of the existing atomic intrinsics.

These will be needed to support IR-level lowering of atomic
operations.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206489 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoReverse 206485.
Gerolf Hoflehner [Thu, 17 Apr 2014 19:14:06 +0000 (19:14 +0000)]
Reverse 206485.

After some discussions the preferred semantics of
the always_inline attribute is
inline always when the compiler can determine
that it it safe to do so.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206487 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[stack protector] Make the StackProtector pass respect ssp-buffer-size.
Josh Magee [Thu, 17 Apr 2014 19:08:36 +0000 (19:08 +0000)]
[stack protector] Make the StackProtector pass respect ssp-buffer-size.

Previously, SSPBufferSize was assigned the value of the "stack-protector-buffer-size"
attribute after all uses of SSPBufferSize.  The effect was that the default
SSPBufferSize was always used during analysis.  I moved the check for the
attribute before the analysis; now --param ssp-buffer-size= works correctly again.

Differential Revision: http://reviews.llvm.org/D3349

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206486 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoAtomics: promote ARM's IR-based atomics pass to CodeGen.
Tim Northover [Thu, 17 Apr 2014 18:22:47 +0000 (18:22 +0000)]
Atomics: promote ARM's IR-based atomics pass to CodeGen.

Still only 32-bit ARM using it at this stage, but the promotion allows
direct testing via opt and is a reasonably self-contained patch on the
way to switching ARM64.

At this point, other targets should be able to make use of it without
too much difficulty if they want. (See ARM64 commit coming soon for an
example).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206485 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoC++11: Compatibility with (C++03 => MSVC)
Duncan P. N. Exon Smith [Thu, 17 Apr 2014 18:02:36 +0000 (18:02 +0000)]
C++11: Compatibility with (C++03 => MSVC)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206481 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoC++11: Document some limitations imposed by MSVC
Duncan P. N. Exon Smith [Thu, 17 Apr 2014 18:02:34 +0000 (18:02 +0000)]
C++11: Document some limitations imposed by MSVC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206480 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoR600/SI: f64 frint is legal on CI
Matt Arsenault [Thu, 17 Apr 2014 17:06:37 +0000 (17:06 +0000)]
R600/SI: f64 frint is legal on CI

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206475 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[AArch64] Implement the getCSRFirstUseCost API, mirroring that in ARM64.
Chad Rosier [Thu, 17 Apr 2014 16:19:54 +0000 (16:19 +0000)]
[AArch64] Implement the getCSRFirstUseCost API, mirroring that in ARM64.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206473 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoInliner::OptimizationRemark: Fix crash in clang/test/Frontend/optimization-remark...
NAKAMURA Takumi [Thu, 17 Apr 2014 12:22:14 +0000 (12:22 +0000)]
Inliner::OptimizationRemark: Fix crash in clang/test/Frontend/optimization-remark.c on some hosts, including --vg.

DebugLoc in Callsite would not live after Inliner. It should be copied before Inliner.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206459 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[LCG] Remove a dead declaration. This stopped being used when I switched
Chandler Carruth [Thu, 17 Apr 2014 09:41:54 +0000 (09:41 +0000)]
[LCG] Remove a dead declaration. This stopped being used when I switched
to a more normal move operation on the graph itself. The definition
already got removed, but I missed the declaration.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206455 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[LCG] Move the call graph node class into the graph class's definition.
Chandler Carruth [Thu, 17 Apr 2014 09:40:13 +0000 (09:40 +0000)]
[LCG] Move the call graph node class into the graph class's definition.
This will become necessary to build up the SCC iterators and SCC
definitions. Moving it now so that subsequent diffs are incremental.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206454 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoMake the User::value_op_iterator a random access iterator. I had written
Chandler Carruth [Thu, 17 Apr 2014 09:07:50 +0000 (09:07 +0000)]
Make the User::value_op_iterator a random access iterator. I had written
this code ages ago and lost track of it. Seems worth doing though --
this thing can get called from places that would benefit from knowing
that std::distance is O(1). Also add a very fledgeling unittest for
Users and make sure various aspects of this seem to work reasonably.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206453 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[LCG] Just move the allocator (now that we can) when moving a call
Chandler Carruth [Thu, 17 Apr 2014 07:25:59 +0000 (07:25 +0000)]
[LCG] Just move the allocator (now that we can) when moving a call
graph. This simplifies the custom move constructor operation to one of
walking the graph and updating the 'up' pointers to point to the new
location of the graph. Switch the nodes from a reference to a pointer
for the 'up' edge to facilitate this.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206450 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[LCG] Remove the Module reference member which we weren't using for
Chandler Carruth [Thu, 17 Apr 2014 07:22:19 +0000 (07:22 +0000)]
[LCG] Remove the Module reference member which we weren't using for
anything and doesn't make sense if assigning.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206449 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[Allocator] Make SpecificBumpPtrAllocator also movable and move
Chandler Carruth [Thu, 17 Apr 2014 07:08:56 +0000 (07:08 +0000)]
[Allocator] Make SpecificBumpPtrAllocator also movable and move
assignable.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206448 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[X86] Add disassembler support for the 0x0f 0x7f form of movq %mm, %mm.
Craig Topper [Thu, 17 Apr 2014 06:33:45 +0000 (06:33 +0000)]
[X86] Add disassembler support for the 0x0f 0x7f form of movq %mm, %mm.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206447 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoobjdump: identify WoA WinCOFF/ARM correctly
Saleem Abdulrasool [Thu, 17 Apr 2014 06:17:23 +0000 (06:17 +0000)]
objdump: identify WoA WinCOFF/ARM correctly

Since LLVM currently only supports WinCOFF, assume that the input is WinCOFF
rather than another type of COFF file (ECOFF/XCOFF).  If the architecture is
detected as thumb (e.g. the file has a IMAGE_FILE_MACHINE_ARMNT magic) then use
a triple of thumbv7-windows.

This allows for objdump to properly handle WoA object files without having to
specify the target triple manually.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206446 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoMC: rework static_assert to be MSVC compatible
Saleem Abdulrasool [Thu, 17 Apr 2014 06:17:20 +0000 (06:17 +0000)]
MC: rework static_assert to be MSVC compatible

Visual Studio does not permit referencing a structure member as a static field
for sizeof calculations.  Resort to a pointer cast which is compatible across
Visual Studio and other compilers.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206445 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoSupport: Move OnDiskHashTable from clang to llvm
Justin Bogner [Thu, 17 Apr 2014 02:16:53 +0000 (02:16 +0000)]
Support: Move OnDiskHashTable from clang to llvm

This introduces clang's Basic/OnDiskHashTable.h into llvm as
Support/OnDiskHashTable.h. I've taken the opportunity to add doxygen
comments and run the file through clang-format, but other than the
namespace changing from clang:: to llvm:: the API is identical.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206438 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoR600/SI: Fix zext from i1 to i64
Matt Arsenault [Thu, 17 Apr 2014 02:03:08 +0000 (02:03 +0000)]
R600/SI: Fix zext from i1 to i64

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206437 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[ARM64] Fix "Cannot select" for vector ctpop
Adam Nemet [Thu, 17 Apr 2014 01:01:37 +0000 (01:01 +0000)]
[ARM64] Fix "Cannot select" for vector ctpop

The commit of r205855:

Author: Arnold Schwaighofer <aschwaighofer@apple.com>
Date:   Wed Apr 9 14:20:47 2014 +0000

    SLPVectorizer: Only vectorize intrinsics whose operands are widened equally

    The vectorizer only knows how to vectorize intrinics by widening all operands by
    the same factor.

    Patch by Tyler Nowicki!

exposed a backend bug causing a regression (Cannot select ctpop).

The commit msg is a bit confusing because the patch actually changes the
behavior for the loop-vectorizer as well.  As things got refactored into a
helper ctpop got snuck in to the trivially-vectorizable helper which is now
used by both vectorizers.  In other words, we started seeing vector-ctpops in
the backend.

This change makes ctpop LegalizeAction::Expand for the types not supported by
the byte-only CNT instruction.  We may be able to custom-lower these later to
a single CNT but this is to fix the compiler crash first.

Fixes <rdar://problem/16578951>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206433 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoInline a function when the always_inline attribute
Gerolf Hoflehner [Thu, 17 Apr 2014 00:21:52 +0000 (00:21 +0000)]
Inline a function when the always_inline attribute
is set even when it contains a indirect branch.
The attribute overrules correctness concerns
like the escape of a local block address.

This is for rdar://16501761

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206429 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoTeach LLVMConfigVersion.cmake to behave as find_package() expects.
Eric Christopher [Wed, 16 Apr 2014 23:15:31 +0000 (23:15 +0000)]
Teach LLVMConfigVersion.cmake to behave as find_package() expects.

Patch by Brad King

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206426 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoAdd support for a patch version to the cmake system.
Eric Christopher [Wed, 16 Apr 2014 23:15:28 +0000 (23:15 +0000)]
Add support for a patch version to the cmake system.

Patch by Brad King

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206425 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[c++11] Tidy up AsmPrinter.cpp.
Jim Grosbach [Wed, 16 Apr 2014 22:38:02 +0000 (22:38 +0000)]
[c++11] Tidy up AsmPrinter.cpp.

Range'ify loops and tidy up some by-reference handling. No functional
change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206422 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoiterator_range for machine block terminators.
Jim Grosbach [Wed, 16 Apr 2014 22:37:58 +0000 (22:37 +0000)]
iterator_range for machine block terminators.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206421 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoAdded new functionality to LLVM C API to use DiagnosticInfo to handle errors
Tom Stellard [Wed, 16 Apr 2014 17:45:04 +0000 (17:45 +0000)]
Added new functionality to LLVM C API to use DiagnosticInfo to handle errors

Patch by: Darren Powell

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206407 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoReplacing a non-ASCII character in a comment with an ASCII character. Fixes a C4819...
Aaron Ballman [Wed, 16 Apr 2014 17:09:20 +0000 (17:09 +0000)]
Replacing a non-ASCII character in a comment with an ASCII character. Fixes a C4819 warning in MSVC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206403 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoAllow diagnostic handlers to check for optimization remarks.
Diego Novillo [Wed, 16 Apr 2014 16:53:41 +0000 (16:53 +0000)]
Allow diagnostic handlers to check for optimization remarks.

Summary:
When optimization remarks are enabled via the driver flag -Rpass, we
should allow the FE diagnostic handler to check if the given pass name
needs a diagnostic.

We were unconditionally checking the pattern defined in opt's
-pass-remarks flag. This was causing the FE to not emit any diagnostics.

Reviewers: qcolombet

CC: llvm-commits
Differential Revision: http://reviews.llvm.org/D3362

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206400 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoTest commit - Added a new line
Konrad Anheim [Wed, 16 Apr 2014 16:45:18 +0000 (16:45 +0000)]
Test commit - Added a new line

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206399 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[mips] Use TwoOperandAliasConstraint for shift instructions.
Matheus Almeida [Wed, 16 Apr 2014 16:28:59 +0000 (16:28 +0000)]
[mips] Use TwoOperandAliasConstraint for shift instructions.

This enables TableGen to generate an additional two operand
matcher for our shift_rotate_imm and shift_rotate_reg class of instructions.

The tests were also updated so that they include now encoding information
for all affected instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206398 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[mips] Add initial support for NaN2008 in the back-end.
Matheus Almeida [Wed, 16 Apr 2014 15:48:55 +0000 (15:48 +0000)]
[mips] Add initial support for NaN2008 in the back-end.

This is so that EF_MIPS_NAN2008 is set if we are using IEEE 754-2008
NaN encoding (-mnan=2008). This patch also adds support for parsing
'.nan legacy' and '.nan 2008' assembly directives. The handling of
these directives should match GAS' behaviour i.e., the last directive
in use sets the ELF header bit (EF_MIPS_NAN2008).

Differential Revision: http://reviews.llvm.org/D3346

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206396 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoARM64: silence sign-comparison warning.
Tim Northover [Wed, 16 Apr 2014 15:28:06 +0000 (15:28 +0000)]
ARM64: silence sign-comparison warning.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206393 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoAArch64/ARM64: port some NEON tests to ARM64
Tim Northover [Wed, 16 Apr 2014 15:28:02 +0000 (15:28 +0000)]
AArch64/ARM64: port some NEON tests to ARM64

These ones used completely different sets of intrinsics, so the only way to do
it is create a separate ARM64 copy and change them all.

Other than that, CodeGen was straightforward, no deficiencies detected here.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206392 91177308-0d34-0410-b5e6-96231b3b80d8

10 years agoAArch64/ARM64: produce correct relocation for conditional branches.
Tim Northover [Wed, 16 Apr 2014 15:27:52 +0000 (15:27 +0000)]
AArch64/ARM64: produce correct relocation for conditional branches.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206391 91177308-0d34-0410-b5e6-96231b3b80d8

10 years ago[mips] Indentation
Daniel Sanders [Wed, 16 Apr 2014 14:38:27 +0000 (14:38 +0000)]
[mips] Indentation

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206389 91177308-0d34-0410-b5e6-96231b3b80d8