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Mehdi Amini [Wed, 4 Mar 2015 01:48:39 +0000 (01:48 +0000)]
Use report_fatal_error instead of unreachable for -fast-isel-abort
Suggestion by Andrea Di Biagio
From: Mehdi Amini <mehdi.amini@apple.com>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231201
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David Blaikie [Wed, 4 Mar 2015 01:41:01 +0000 (01:41 +0000)]
unique_ptrify ValID::ConstantStructElts
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231200
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David Blaikie [Wed, 4 Mar 2015 01:40:07 +0000 (01:40 +0000)]
LLParser: Avoid copying ValIDs, the copy ctor is deprecated in C++11 due to the presence of a user-declared dtor
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231199
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Rafael Espindola [Wed, 4 Mar 2015 01:35:23 +0000 (01:35 +0000)]
Use the vanilla func_end symbol for .size.
No need to create yet another temp symbol.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231198
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Pete Cooper [Wed, 4 Mar 2015 01:24:26 +0000 (01:24 +0000)]
Remove MCStreamer include which isn't used here. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231195
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Pete Cooper [Wed, 4 Mar 2015 01:24:24 +0000 (01:24 +0000)]
This file should always have included MCAssembler and not MCStreamer. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231194
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Pete Cooper [Wed, 4 Mar 2015 01:24:11 +0000 (01:24 +0000)]
Remove MCStreamer.h include from MCContext.h and explictly include it where necessary. NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231193
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David Blaikie [Wed, 4 Mar 2015 01:20:33 +0000 (01:20 +0000)]
Recommit r231168: unique_ptrify LiveRange::segmentSet
GCC 4.7's libstdc++ doesn't have std::map::emplace, but it does have
std::unordered_map::emplace, and the use case here doesn't appear to
need ordering. The container has been changed in a separate/precursor
patch, and now this patch should hopefully build cleanly even with
GCC 4.7.
& then I realized the order of the container did matter, so extra
handling of ordering was added in r231189.
Original commit message:
This makes LiveRange non-copyable, and LiveInterval is already
non-movable (due to the explicit dtor), so now it's non-copyable and
non-movable.
Fix the one case where we were relying on the (deprecated in C++11)
implicit copy ctor of LiveInterval (which happened to work because the
ctor created an object with a null segmentSet, so double-deleting the
null pointer was fine).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231192
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Eric Christopher [Wed, 4 Mar 2015 01:19:17 +0000 (01:19 +0000)]
Weaken the check for a specific movl on the twoaddr-coalesce-3
test - we only care that there are two moves in the loop and not
which part is relative to which register anyhow.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231191
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Eric Fiselier [Wed, 4 Mar 2015 01:16:43 +0000 (01:16 +0000)]
Reverse the order libc++ and libc++abi are added in CMake.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231190
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David Blaikie [Wed, 4 Mar 2015 01:15:53 +0000 (01:15 +0000)]
Recommit r231175: Change LiveStackAnalysis::SS2IntervalMap from std::map to std::unordered_map
The order of this container was needed at one point - so, at that point
create a temporary array of pointers, sort those, then iterate them.
This keeps lookup efficient (& the lesser issue, of allowing the use of
emplace... ), object identity preserved, and ordered iteration in the
one place that requires it.
While this has no functional change, I realize it does mean allocating
an extra data structure and performing a sort - so if this looks suspect
to anyone regarding perf characteristics, I'm all ears.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231189
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Filipe Cabecinhas [Wed, 4 Mar 2015 00:49:12 +0000 (00:49 +0000)]
Fix the x86-upgrade-avx2-vbroadcast.ll test by commenting the CHECK lines
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231187
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Matthias Braun [Wed, 4 Mar 2015 00:43:50 +0000 (00:43 +0000)]
RegisterCoalescer: Gracefully continue if subrange merging fails.
There is a known bug where the register coalescer fails to merge
subranges when multiple ranges end up in the "overflow" bit 32 of the
lanemasks. A proper fix for this is complicated so for now this is a
workaround which lets the register coalescer drop the subregister
liveness information (we just loose some precision by that) and
continue.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231186
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Rafael Espindola [Wed, 4 Mar 2015 00:27:43 +0000 (00:27 +0000)]
Drop the "eh_" from eh_func_begin and eh_func_end.
They will be used for more than eh tables.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231185
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David Blaikie [Wed, 4 Mar 2015 00:15:02 +0000 (00:15 +0000)]
Revert "unique_ptrify LiveRange::segmentSet"
Apparently something does care about ordering of LiveIntervals... so
revert all that stuff (r231175, r231176, r231177) & take some time to
re-evaluate.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231184
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Philip Reames [Wed, 4 Mar 2015 00:13:52 +0000 (00:13 +0000)]
[RewriteStatepointsForGC] Fix a relocation bug w.r.t values defined by invoke instructions
RewriteStatepointsForGC pass emits an alloca for each GC pointer which will be relocated. It then inserts stores after def and all relocations, and inserts loads before each use as well. In the end, mem2reg is used to update IR with relocations in SSA form.
However, there is a problem with inserting stores for values defined by invoke instructions. The code didn't expect a def was a terminator instruction, and inserting instructions after these terminators resulted in malformed IR.
This patch fixes this problem by handling invoke instructions as a special case. If the def is an invoke instruction, the store will be inserted at the beginning of the normal destination block. Since return value from invoke instruction does not dominate the unwind destination block, no action is needed there.
Patch by: Chen Li
Differential Revision: http://reviews.llvm.org/D7923
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231183
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Juergen Ributzka [Wed, 4 Mar 2015 00:13:25 +0000 (00:13 +0000)]
Remove 'llvm.x86.avx2.vbroadcasti128' intrinsic.
The intrinsic is no longer generated by the front-end. Remove the intrinsic and
auto-upgrade it to a vector shuffle.
Reviewed by Nadav
This is related to rdar://problem/
18742778.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231182
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Reid Kleckner [Wed, 4 Mar 2015 00:08:56 +0000 (00:08 +0000)]
Document the LLVM "thunk" attribute added back in r226708
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231181
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Eric Christopher [Tue, 3 Mar 2015 23:56:20 +0000 (23:56 +0000)]
Update twoaddr-coalesce-3.ll to run on darwin and linux machines:
a) Default relocation model differences,
b) Different numbers of # in comments
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231178
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David Blaikie [Tue, 3 Mar 2015 23:54:35 +0000 (23:54 +0000)]
Add missing header include
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231177
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David Blaikie [Tue, 3 Mar 2015 23:53:03 +0000 (23:53 +0000)]
Recommit r231168: unique_ptrify LiveRange::segmentSet
GCC 4.7's libstdc++ doesn't have std::map::emplace, but it does have
std::unordered_map::emplace, and the use case here doesn't appear to
need ordering. The container has been changed in a separate/precursor
patch, and now this patch should hopefully build cleanly even with
GCC 4.7.
Original commit message:
This makes LiveRange non-copyable, and LiveInterval is already
non-movable (due to the explicit dtor), so now it's non-copyable and
non-movable.
Fix the one case where we were relying on the (deprecated in C++11)
implicit copy ctor of LiveInterval (which happened to work because the
ctor created an object with a null segmentSet, so double-deleting the
null pointer was fine).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231176
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David Blaikie [Tue, 3 Mar 2015 23:53:00 +0000 (23:53 +0000)]
Change LiveStackAnalysis::SS2IntervalMap from std::map to std::unordered_map
This use case doesn't appear to benefit from ordering, and
std::unordered_map has the advantage that it supports emplace (the
LiveInterval values really shouldn't be copyable or movable & they won't
be in a near-future patch).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231175
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David Blaikie [Tue, 3 Mar 2015 23:44:07 +0000 (23:44 +0000)]
Revert "unique_ptrify LiveRange::segmentSet"
GCC 4.7 *shakes fist* (doesn't have std::map::emplace... )
This reverts commit r231168.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231173
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Jan Wen Voung [Tue, 3 Mar 2015 23:41:58 +0000 (23:41 +0000)]
Move TargetLibraryInfo data from two files into one common .def file.
Summary:
This makes it more obvious that the enum definition and the
"StandardName" array is in sync. Mechanically refactored w/ a
python script.
Test Plan: still compiles
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D7845
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231172
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David Blaikie [Tue, 3 Mar 2015 23:30:40 +0000 (23:30 +0000)]
unique_ptrify LiveRange::segmentSet
This makes LiveRange non-copyable, and LiveInterval is already
non-movable (due to the explicit dtor), so now it's non-copyable and
non-movable.
Fix the one case where we were relying on the (deprecated in C++11)
implicit copy ctor of LiveInterval (which happened to work because the
ctor created an object with a null segmentSet, so double-deleting the
null pointer was fine).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231168
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Kostya Serebryany [Tue, 3 Mar 2015 23:27:02 +0000 (23:27 +0000)]
[sanitizer/coverage] Add AFL-style coverage counters (search heuristic for fuzzing).
Introduce -mllvm -sanitizer-coverage-8bit-counters=1
which adds imprecise thread-unfriendly 8-bit coverage counters.
The run-time library maps these 8-bit counters to 8-bit bitsets in the same way
AFL (http://lcamtuf.coredump.cx/afl/technical_details.txt) does:
counter values are divided into 8 ranges and based on the counter
value one of the bits in the bitset is set.
The AFL ranges are used here: 1, 2, 3, 4-7, 8-15, 16-31, 32-127, 128+.
These counters provide a search heuristic for single-threaded
coverage-guided fuzzers, we do not expect them to be useful for other purposes.
Depending on the value of -fsanitize-coverage=[123] flag,
these counters will be added to the function entry blocks (=1),
every basic block (=2), or every edge (=3).
Use these counters as an optional search heuristic in the Fuzzer library.
Add a test where this heuristic is critical.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231166
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Eric Christopher [Tue, 3 Mar 2015 23:22:40 +0000 (23:22 +0000)]
Remove subtarget dependence in pass pipeline setup for AArch64.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231165
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Reid Kleckner [Tue, 3 Mar 2015 23:20:30 +0000 (23:20 +0000)]
WinEH: Remove vestigial EH object
Ultimately, we'll need to leave something behind to indicate which
alloca will hold the exception, but we can figure that out when it comes
time to emit the __CxxFrameHandler3 catch handler table.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231164
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David Majnemer [Tue, 3 Mar 2015 22:45:47 +0000 (22:45 +0000)]
LangRef: Clarify select's semantics with vector arguments
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231158
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David Majnemer [Tue, 3 Mar 2015 22:40:36 +0000 (22:40 +0000)]
InstCombine: Ensure select condition types are identical before merging
Selection conditions may be vectors or scalars. Make sure InstCombine
doesn't indiscriminately assume that a select which is value dependent
on another select have identical select condition types.
This fixes PR22773.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231156
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Andrew Kaylor [Tue, 3 Mar 2015 22:33:39 +0000 (22:33 +0000)]
Moving WinEH outlining tests to an architecture neutral location
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231155
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David Blaikie [Tue, 3 Mar 2015 22:25:48 +0000 (22:25 +0000)]
Avoid copying LiveInterval, this could lead to a double-delete
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231154
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Eric Christopher [Tue, 3 Mar 2015 22:03:03 +0000 (22:03 +0000)]
Fix a problem where the TwoAddressInstructionPass which generate redundant register moves in a loop.
From:
int M, total;
void foo() {
int i;
for (i = 0; i < M; i++) {
total = total + i / 2;
}
}
This is the kernel loop:
.LBB0_2: # %for.body
=>This Inner Loop Header: Depth=1
movl %edx, %esi
movl %ecx, %edx
shrl $31, %edx
addl %ecx, %edx
sarl %edx
addl %esi, %edx
incl %ecx
cmpl %eax, %ecx
jl .LBB0_2
--------------------------
The first mov insn "movl %edx, %esi" could be removed if we change "addl %esi, %edx" to "addl %edx, %esi".
The IR before TwoAddressInstructionPass is:
BB#2: derived from LLVM BB %for.body
Predecessors according to CFG: BB#1 BB#2
%vreg3<def> = COPY %vreg12<kill>; GR32:%vreg3,%vreg12
%vreg2<def> = COPY %vreg11<kill>; GR32:%vreg2,%vreg11
%vreg7<def,tied1> = SHR32ri %vreg3<tied0>, 31, %EFLAGS<imp-def,dead>; GR32:%vreg7,%vreg3
%vreg8<def,tied1> = ADD32rr %vreg3<tied0>, %vreg7<kill>, %EFLAGS<imp-def,dead>; GR32:%vreg8,%vreg3,%vreg7
%vreg9<def,tied1> = SAR32r1 %vreg8<kill,tied0>, %EFLAGS<imp-def,dead>; GR32:%vreg9,%vreg8
%vreg4<def,tied1> = ADD32rr %vreg9<kill,tied0>, %vreg2<kill>, %EFLAGS<imp-def,dead>; GR32:%vreg4,%vreg9,%vreg2
%vreg5<def,tied1> = INC64_32r %vreg3<kill,tied0>, %EFLAGS<imp-def,dead>; GR32:%vreg5,%vreg3
CMP32rr %vreg5, %vreg0, %EFLAGS<imp-def>; GR32:%vreg5,%vreg0
%vreg11<def> = COPY %vreg4; GR32:%vreg11,%vreg4
%vreg12<def> = COPY %vreg5<kill>; GR32:%vreg12,%vreg5
JL_4 <BB#2>, %EFLAGS<imp-use,kill>
Now TwoAddressInstructionPass will choose vreg9 to be tied with vreg4. However, it doesn't see that there is copy from vreg4 to vreg11 and another copy from vreg11 to vreg2 inside the loop body. To remove those copies, it is necessary to choose vreg2 to be tied with vreg4 instead of vreg9. This code pattern commonly appears when there is reduction operation in a loop.
So check for a reversed copy chain and if we encounter one then we can commute the add instruction so we can avoid a copy.
Patch by Wei Mi.
http://reviews.llvm.org/D7806
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231148
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Mehdi Amini [Tue, 3 Mar 2015 22:01:13 +0000 (22:01 +0000)]
Remove getDataLayout() from Instruction/GlobalValue/BasicBlock/Function
Summary:
This does not conceptually belongs here. Instead provide a shortcut
getModule() that provides access to the DataLayout.
Reviewers: chandlerc, echristo
Reviewed By: echristo
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D8027
From: Mehdi Amini <mehdi.amini@apple.com>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231147
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David Blaikie [Tue, 3 Mar 2015 21:56:11 +0000 (21:56 +0000)]
Fix the build broken in r231142
I removed the copy ctor, thinking that'd be the end of it - these
iterators should be perfectly assignable even from disjoint ranges (as
any iterator would be) - exkcept that the member was const.
Unconstify it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231146
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David Blaikie [Tue, 3 Mar 2015 21:50:47 +0000 (21:50 +0000)]
DAGCombiner::LoadedSlice: Remove explicit copy ctor in favor of the Rule of Zero
This way, the copy assignment operator can be used without hitting the
deprecated case in C++11.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231144
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David Blaikie [Tue, 3 Mar 2015 21:49:07 +0000 (21:49 +0000)]
RewriteStatepointsForGC::PhiState: Remove explicit copy ctor in favor of the Rule of Zero
The assertion was just checking a class invariant that's pretty easy to
verify by inspection (no mutating operations, and the two non-copy ctors
already ensure the state is maintained) so remove the explicit copy ctor
in favor of the default, thus allowing the use of the default copy
assignment operator without hitting the C++11 deprecation here.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231143
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David Blaikie [Tue, 3 Mar 2015 21:45:54 +0000 (21:45 +0000)]
CFG::SuccessorIterator: Remove explicit copy assignment, as the default is fine
There's no reason to disallow assigning an iterator from one range to an
iterator that previously iterated over a disjoint range. This then
follows the Rule of Zero, allowing implicit copy construction to be used
without hitting the case that's deprecated in C++11.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231142
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David Blaikie [Tue, 3 Mar 2015 21:44:06 +0000 (21:44 +0000)]
CFG::SuccessorIterator::SuccessorProxy:: Expliictly default copy construction as it is deprecated in C++11 in the presence of explicit copy assignment.
See r231099 for similar issues & details in [Small]BitVector.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231141
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Nadav Rotem [Tue, 3 Mar 2015 21:39:02 +0000 (21:39 +0000)]
Teach ComputeNumSignBits about signed divisions.
http://reviews.llvm.org/D8028
rdar://
20023136
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231140
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David Blaikie [Tue, 3 Mar 2015 21:26:17 +0000 (21:26 +0000)]
Remove the explicit SDNodeIterator::operator= in favor of the implicit default
There doesn't seem to be any need to assert that iterator assignment is
between iterators over the same node - if you want to reuse an iterator
variable to iterate another node, that's perfectly acceptable. Just
don't mix comparisons between iterators into disjoint sequences, as
usual.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231138
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David Blaikie [Tue, 3 Mar 2015 21:18:16 +0000 (21:18 +0000)]
Revert "Remove the explicit SDNodeIterator::operator= in favor of the implicit default"
Accidentally committed a few more of these cleanup changes than
intended. Still breaking these out & tidying them up.
This reverts commit r231135.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231136
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David Blaikie [Tue, 3 Mar 2015 21:17:08 +0000 (21:17 +0000)]
Remove the explicit SDNodeIterator::operator= in favor of the implicit default
There doesn't seem to be any need to assert that iterator assignment is
between iterators over the same node - if you want to reuse an iterator
variable to iterate another node, that's perfectly acceptable. Just
don't mix comparisons between iterators into disjoint sequences, as
usual.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231135
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David Blaikie [Tue, 3 Mar 2015 21:17:00 +0000 (21:17 +0000)]
Remove the explicit SUnitIterator::operator= as the default is just fine
There doesn't seem to be any need to assert that iterator assignment is
between iterators over the same node - if you want to reuse an iterator
variable to iterate another node, that's perfectly acceptable. Just
don't mix comparisons between iterators into disjoint sequences, as
usual.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231134
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David Blaikie [Tue, 3 Mar 2015 21:16:56 +0000 (21:16 +0000)]
Remove LatencyPriorityQueue::dump because it relies on an implicit copy ctor which is deprecated in C++11 (due to the presence of a user-declare dtor in the base class)
This type could be made copyable (= default a protected copy ctor in the
base class, and preferably make the derived class final to avoid risks
of providing a slicing copy operation to further derived classes) but it
seemed easier to avoid that complexity for a dump function that I assume
(by symmetry with ResourcePriorityQueue's dump, which was actively
buggy) not often used.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231133
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Rafael Espindola [Tue, 3 Mar 2015 21:11:13 +0000 (21:11 +0000)]
Correctly handle -pass-remarks in the gold plugin.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231132
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Paul Robinson [Tue, 3 Mar 2015 21:01:27 +0000 (21:01 +0000)]
[X86][ELF] Correct relocation for DWARF TLS references
Previously we had only Linux using DTPOFF for these; all X86 ELF
targets should. Fixes a side issue mentioned in PR21077.
Differential Revision: http://reviews.llvm.org/D8011
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231130
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Sanjay Patel [Tue, 3 Mar 2015 20:58:35 +0000 (20:58 +0000)]
remove enum value names from comments; NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231129
91177308-0d34-0410-b5e6-
96231b3b80d8
Eric Christopher [Tue, 3 Mar 2015 20:54:29 +0000 (20:54 +0000)]
Add support for SunOS function/data sections and associated
section gc.
Patch by Bill Rushmore.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231128
91177308-0d34-0410-b5e6-
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David Blaikie [Tue, 3 Mar 2015 20:49:08 +0000 (20:49 +0000)]
unique_ptrify ResourcePriorityQueue::ResourceModel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231127
91177308-0d34-0410-b5e6-
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David Blaikie [Tue, 3 Mar 2015 20:49:05 +0000 (20:49 +0000)]
Remove ResourcePriorityQueue::dump as it relies on copying a non-copyable type which would result in a double-delete
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231126
91177308-0d34-0410-b5e6-
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Sanjoy Das [Tue, 3 Mar 2015 20:46:45 +0000 (20:46 +0000)]
[ADT] fail-fast iterators for DenseMap
This patch was landed in r231035 and reverted because it was buggy.
This is fixed version of the same change.
Summary:
This patch is an attempt at making `DenseMapIterator`s "fail-fast".
Fail-fast iterators that have been invalidated due to insertion into
the host `DenseMap` deterministically trip an assert (in debug mode)
on access, instead of non-deterministically hitting memory corruption
issues.
Reviewers: dexonsmith, dberlin, ruiu, chandlerc
Reviewed By: chandlerc
Subscribers: yaron.keren, chandlerc, llvm-commits
Differential Revision: http://reviews.llvm.org/D7931
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231125
91177308-0d34-0410-b5e6-
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Sanjay Patel [Tue, 3 Mar 2015 20:41:27 +0000 (20:41 +0000)]
use bool operator shortcut; NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231123
91177308-0d34-0410-b5e6-
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Andrew Kaylor [Tue, 3 Mar 2015 20:22:09 +0000 (20:22 +0000)]
Fixing problem with field initialization order
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231122
91177308-0d34-0410-b5e6-
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Adrian Prantl [Tue, 3 Mar 2015 20:12:52 +0000 (20:12 +0000)]
Fix PR22762. When emitting a DWARF expression check whether this is the
frame register before checking if there is a DWARF register number for it.
Thanks to H.J. Lu for diagnosing this and providing the testcase!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231121
91177308-0d34-0410-b5e6-
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Andrew Kaylor [Tue, 3 Mar 2015 20:00:16 +0000 (20:00 +0000)]
Outline cleanup handlers for native Windows C++ exception handling
Differential Revision: http://reviews.llvm.org/D7865
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231117
91177308-0d34-0410-b5e6-
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Kit Barton [Tue, 3 Mar 2015 19:55:45 +0000 (19:55 +0000)]
Add the following 64-bit vector integer arithmetic instructions added in POWER8:
vaddudm
vsubudm
vmulesw
vmulosw
vmuleuw
vmulouw
vmuluwm
vmaxsd
vmaxud
vminsd
vminud
vcmpequd
vcmpequd.
vcmpgtsd
vcmpgtsd.
vcmpgtud
vcmpgtud.
vrld
vsld
vsrd
vsrad
Phabricator review: http://reviews.llvm.org/D7959
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231115
91177308-0d34-0410-b5e6-
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David Blaikie [Tue, 3 Mar 2015 19:53:04 +0000 (19:53 +0000)]
DeltaAlgorithm: Provide protected default copy ctor for use by test derived class.
Without this, use of this copy ctor is deprecated in C++11 due to the
presence of a user-declared dtor.
Marking the class final is just a little extra security that there are
no further derived classes that may then end up using the intermediate
base class's copy assignment operator and cause slicing to occur.
I didn't bother marking the other (non-test) base class final, since it
has reference members so it won't have any implicit assignment operators
anyway. Open to ideas on that, though.
We probably want a warning about use of a slicing assignment operator,
then I wouldn't worry so much about marking the class as final.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231114
91177308-0d34-0410-b5e6-
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David Blaikie [Tue, 3 Mar 2015 19:53:02 +0000 (19:53 +0000)]
Remove explicit no-op dtor in favor of the implicit dtor so as not to disable/deprecate the copy operations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231113
91177308-0d34-0410-b5e6-
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David Blaikie [Tue, 3 Mar 2015 19:52:59 +0000 (19:52 +0000)]
Remove no-op dtor so that use of the implicit copy ctor/assignment operator are not deprecated.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231112
91177308-0d34-0410-b5e6-
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Eric Christopher [Tue, 3 Mar 2015 19:47:14 +0000 (19:47 +0000)]
Add a comment above findRepresentativeClass explaining why it's
where it is so that future generations can understand.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231111
91177308-0d34-0410-b5e6-
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David Blaikie [Tue, 3 Mar 2015 19:29:14 +0000 (19:29 +0000)]
Remove explicit copy ctor in favor of the implicit one so that the use of the copy assignment operator is not deprecated.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231110
91177308-0d34-0410-b5e6-
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David Blaikie [Tue, 3 Mar 2015 19:29:13 +0000 (19:29 +0000)]
Remove explicit copy assignment operator in favor of the implicit/default to avoid disabling/deprecating the implicit copy ctor.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231109
91177308-0d34-0410-b5e6-
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David Blaikie [Tue, 3 Mar 2015 19:29:11 +0000 (19:29 +0000)]
Remove explicit copy ctor in favor of the default so as not to disable/deprecate the implicit copy assignment operator
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231108
91177308-0d34-0410-b5e6-
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David Blaikie [Tue, 3 Mar 2015 19:20:18 +0000 (19:20 +0000)]
unique_ptrify FullDependenceAnalysis::DV
Making this type a little harder to abuse (see workaround relating to
use of the implicit copy ctor in the prior commit)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231104
91177308-0d34-0410-b5e6-
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David Blaikie [Tue, 3 Mar 2015 19:20:16 +0000 (19:20 +0000)]
FullDependenceAnalysis: Avoid using the (deprecated in C++11) copy ctor
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231103
91177308-0d34-0410-b5e6-
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David Blaikie [Tue, 3 Mar 2015 19:20:13 +0000 (19:20 +0000)]
Remove some explicit copy assignment operators is favor of implicit ones, as their presence makes the use of the implicit copy ctor deprecated in C++11
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231102
91177308-0d34-0410-b5e6-
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Dario Domizioli [Tue, 3 Mar 2015 18:40:53 +0000 (18:40 +0000)]
Fix PR22750: non-determinism causes assertion failure in DWARF generation
The cause of the issue is the interaction of two factors:
1) When generating a DW_TAG_imported_declaration DIE which imports another
imported declaration, the code in AsmPrinter/DwarfCompileUnit.cpp
asserts that the second imported declaration must already have a DIE.
2) There is a non-determinism in the order in which imported declarations
within the same scope are processed.
Because of the non-determinism (2), it is possible that an imported
declaration is processed before another one it depends on, breaking the
assumption in (1).
The source of the non-determinism is that the imported declaration
DIDescriptors are sorted by scope in DwarfDebug::beginModule(); however that
sort is not a stable_sort, therefore the order of the declarations within
the same scope is not preserved. The attached patch changes the std::sort to
a std::stable_sort and it fixes the problem.
Test omitted due to it being non-deterministic and depending on the
implementation of std::sort.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231100
91177308-0d34-0410-b5e6-
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David Blaikie [Tue, 3 Mar 2015 18:39:00 +0000 (18:39 +0000)]
[Small]BitVector::reference: Explicitly default copy construction as it is deprecated in C++11 in the presence of explicit copy assignment.
I tried making these private & friended to the BitVector, but that
didn't work - there's one use of BitVector::reference in Clang that
actually copies it into a local variable & uses it from there, rather
than just using the result of op[] in a temporary expression.
Whether or not this is desired is debatable (we could just fix that one
use in Clang) & it's not clear which way the C++ standard falls on this
for std::bitset's reference type (it has the same bug at least in
libstdc++, but Clang's -Wdeprecated doesn't flag it, because it's in a
standard header)
While it was only BitVector::reference's copy ctor that was referenced
by user code, I made SmallBitVector::reference's copy ctor public too,
for consistency.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231099
91177308-0d34-0410-b5e6-
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David Blaikie [Tue, 3 Mar 2015 18:29:27 +0000 (18:29 +0000)]
Avoid explicitly declaring the copy assignment operator, as this unnecessarily makes the copy ctor deprecated in C++11
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231095
91177308-0d34-0410-b5e6-
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David Blaikie [Tue, 3 Mar 2015 18:29:25 +0000 (18:29 +0000)]
Twine: Explicitly default the copy ctor as it's otherwise deprecated in C++11 by the presence of a user-declared copy assignment operator.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231094
91177308-0d34-0410-b5e6-
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David Blaikie [Tue, 3 Mar 2015 18:29:23 +0000 (18:29 +0000)]
DenseMapIterator: Avoid explicitly declaring the copy ctor as this makes the copy assignment operator deprecated in C++11
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231093
91177308-0d34-0410-b5e6-
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Dan Albert [Tue, 3 Mar 2015 18:23:51 +0000 (18:23 +0000)]
Make Triple::getOSVersion make sense for Android.
Reviewers: srhines
Reviewed By: srhines
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D7928
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231090
91177308-0d34-0410-b5e6-
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Eric Christopher [Tue, 3 Mar 2015 17:54:39 +0000 (17:54 +0000)]
80-column fixup.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231088
91177308-0d34-0410-b5e6-
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Reid Kleckner [Tue, 3 Mar 2015 17:41:09 +0000 (17:41 +0000)]
Make llvm.eh.begincatch use an outparam
Ultimately, __CxxFrameHandler3 needs us to put a stack offset in a
table, and it will take responsibility for copying the exception object
into that slot. Modelling the exception object as an SSA value returned
by begincatch isn't going to work in general, so make it use an output
parameter.
Reviewers: andrew.w.kaylor
Differential Revision: http://reviews.llvm.org/D7920
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231086
91177308-0d34-0410-b5e6-
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Chad Rosier [Tue, 3 Mar 2015 17:31:01 +0000 (17:31 +0000)]
[AArch64] When combining constant mul of -3, prefer (sub x, (shl x, N)).
This change only effects codegen when the constant is -3.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231085
91177308-0d34-0410-b5e6-
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Duncan P. N. Exon Smith [Tue, 3 Mar 2015 17:24:31 +0000 (17:24 +0000)]
DebugInfo: Move new hierarchy into place
Move the specialized metadata nodes for the new debug info hierarchy
into place, finishing off PR22464. I've done bootstraps (and all that)
and I'm confident this commit is NFC as far as DWARF output is
concerned. Let me know if I'm wrong :).
The code changes are fairly mechanical:
- Bumped the "Debug Info Version".
- `DIBuilder` now creates the appropriate subclass of `MDNode`.
- Subclasses of DIDescriptor now expect to hold their "MD"
counterparts (e.g., `DIBasicType` expects `MDBasicType`).
- Deleted a ton of dead code in `AsmWriter.cpp` and `DebugInfo.cpp`
for printing comments.
- Big update to LangRef to describe the nodes in the new hierarchy.
Feel free to make it better.
Testcase changes are enormous. There's an accompanying clang commit on
its way.
If you have out-of-tree debug info testcases, I just broke your build.
- `upgrade-specialized-nodes.sh` is attached to PR22564. I used it to
update all the IR testcases.
- Unfortunately I failed to find way to script the updates to CHECK
lines, so I updated all of these by hand. This was fairly painful,
since the old CHECKs are difficult to reason about. That's one of
the benefits of the new hierarchy.
This work isn't quite finished, BTW. The `DIDescriptor` subclasses are
almost empty wrappers, but not quite: they still have loose casting
checks (see the `RETURN_FROM_RAW()` macro). Once they're completely
gutted, I'll rename the "MD" classes to "DI" and kill the wrappers. I
also expect to make a few schema changes now that it's easier to reason
about everything.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231082
91177308-0d34-0410-b5e6-
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Duncan P. N. Exon Smith [Tue, 3 Mar 2015 16:45:34 +0000 (16:45 +0000)]
IR: Add missing API to specialized metadata nodes
Add the final bits of API that `DIBuilder` needs before the new nodes
can be moved into place.
- Add `MDType::clone()` and `MDType::setFlags()` to support
`DIBuilder::createTypeWithFlags()`.
- Add `MDBasicType::get()` overload that just requires a tag and a
name, as a convenience for `DIBuilder::createUnspecifiedType()`.
- Add `MDLocalVariable::withInline()` and
`MDLocalVariable::withoutInline()` to support
`llvm::createInlinedVariable()` and
`llvm::cleanseInlinedVariable()`.
(Somehow these got lost inside the "move into place" patch I'm about to
commit -- better to commit separately!)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231079
91177308-0d34-0410-b5e6-
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NAKAMURA Takumi [Tue, 3 Mar 2015 15:54:48 +0000 (15:54 +0000)]
Make llvm/test/Object/archive-format.test CRLF-tolerant.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231074
91177308-0d34-0410-b5e6-
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Michael Kuperstein [Tue, 3 Mar 2015 15:47:02 +0000 (15:47 +0000)]
[X86][Haswell][SchedModel] Fix patterns for scalar FMA3 variants.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231073
91177308-0d34-0410-b5e6-
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Elena Demikhovsky [Tue, 3 Mar 2015 15:03:35 +0000 (15:03 +0000)]
AVX-512: Moved patterns for masked load/store under avx_store, avx_load classes.
No functional changes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231069
91177308-0d34-0410-b5e6-
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Daniel Jasper [Tue, 3 Mar 2015 10:23:11 +0000 (10:23 +0000)]
During PHI elimination, split critical edges that move copies out of loops.
This prevents the behavior observed in llvm.org/PR22369. I am not sure
whether I am reading the code correctly, but the early exit based on
isLiveOutPastPHIs() seems to make the wrong assumption that
RegisterCoalescer won't be able to coalesce those copies later.
This change hides the new behavior behind -no-phi-elim-live-out-early-exit
as it currently breaks four tests:
* Assertion in:
CodeGen/Hexagon/hwloop-cleanup.ll
* Worse code in:
CodeGen/X86/coalescer-commute4.ll
CodeGen/X86/phys_subreg_coalesce-2.ll
CodeGen/X86/zlib-longest-match.ll
The root cause here seems to be that the heuristic that determines
the visitation order in RegisterCoalescer gets less lucky.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231064
91177308-0d34-0410-b5e6-
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Daniel Berlin [Tue, 3 Mar 2015 09:31:01 +0000 (09:31 +0000)]
Add range iterators to Extract/InsertValueInst indices
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231062
91177308-0d34-0410-b5e6-
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Nick Lewycky [Tue, 3 Mar 2015 07:59:45 +0000 (07:59 +0000)]
Switch up whitespace with better whitespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231059
91177308-0d34-0410-b5e6-
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Nick Lewycky [Tue, 3 Mar 2015 07:57:45 +0000 (07:57 +0000)]
Revert the non-cleanup part of r230769 because it introduced a non-determinism found only in the names of symbols.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231058
91177308-0d34-0410-b5e6-
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Owen Anderson [Tue, 3 Mar 2015 05:39:27 +0000 (05:39 +0000)]
Cleanup after r230934 per Dave's suggestions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231056
91177308-0d34-0410-b5e6-
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Craig Topper [Tue, 3 Mar 2015 05:24:03 +0000 (05:24 +0000)]
[X86] Remove some unused code from disassembler.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231055
91177308-0d34-0410-b5e6-
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Sanjoy Das [Tue, 3 Mar 2015 01:59:38 +0000 (01:59 +0000)]
Revert "[ADT] fail-fast iterators for DenseMap"
This reverts commit r231035. It breaks clang.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231050
91177308-0d34-0410-b5e6-
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Peter Collingbourne [Tue, 3 Mar 2015 01:39:13 +0000 (01:39 +0000)]
Add explicit type to empty std::set initializer to fix the libc++ build.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231047
91177308-0d34-0410-b5e6-
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Ahmed Bougacha [Tue, 3 Mar 2015 01:21:16 +0000 (01:21 +0000)]
[X86] Special-case 2x CMOV when custom-inserting.
This lets us avoid a few copies that are otherwise hard to get rid of.
The way this is done is, the custom-inserter looks at the following
instruction for another CMOV, and replaces both at the same time.
A previous version used a new CMOV2 opcode, but the custom inserter
is expected to be able to return a different basic block anyway, which
means it's OK - though far from ideal - to alter that block's contents.
Explicitly document that, in case it ever makes a difference.
Alternatives welcome!
Follow-up to r231045.
rdar://
19767934
Closes http://reviews.llvm.org/D8019
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231046
91177308-0d34-0410-b5e6-
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Ahmed Bougacha [Tue, 3 Mar 2015 01:09:14 +0000 (01:09 +0000)]
[X86] Combine (cmov (and/or (setcc) (setcc))) into (cmov (cmov)).
Fold and/or of setcc's to double CMOV:
(CMOV F, T, ((cc1 | cc2) != 0)) -> (CMOV (CMOV F, T, cc1), T, cc2)
(CMOV F, T, ((cc1 & cc2) != 0)) -> (CMOV (CMOV T, F, !cc1), F, !cc2)
When we can't use the CMOV instruction, it might increase branch
mispredicts. When we can, or when there is no mispredict, this
improves throughput and reduces register pressure.
These can't be catched by generic combines, because the pattern can
appear when legalizing some instructions (such as fcmp une).
rdar://
19767934
http://reviews.llvm.org/D7634
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231045
91177308-0d34-0410-b5e6-
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Reid Kleckner [Tue, 3 Mar 2015 01:04:39 +0000 (01:04 +0000)]
Fix cppeh breakage due to racing commits
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231044
91177308-0d34-0410-b5e6-
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Peter Collingbourne [Tue, 3 Mar 2015 00:49:28 +0000 (00:49 +0000)]
LowerBitSets: Use byte arrays instead of bit sets to represent in-memory bit sets.
By loading from indexed offsets into a byte array and applying a mask, a
program can test bits from the bit set with a relatively short instruction
sequence. For example, suppose we have 15 bit sets to lay out:
A (16 bits), B (15 bits), C (14 bits), D (13 bits), E (12 bits),
F (11 bits), G (10 bits), H (9 bits), I (7 bits), J (6 bits), K (5 bits),
L (4 bits), M (3 bits), N (2 bits), O (1 bit)
These bits can be laid out in a 16-byte array like this:
Byte Offset
0123456789ABCDEF
Bit
7 HHHHHHHHHIIIIIII
6 GGGGGGGGGGJJJJJJ
5 FFFFFFFFFFFKKKKK
4 EEEEEEEEEEEELLLL
3 DDDDDDDDDDDDDMMM
2 CCCCCCCCCCCCCCNN
1 BBBBBBBBBBBBBBBO
0
AAAAAAAAAAAAAAAA
For example, to test bit X of A, we evaluate ((bits[X] & 1) != 0), or to
test bit X of I, we evaluate ((bits[9 + X] & 0x80) != 0). This can be done
in 1-2 machine instructions on x86, or 4-6 instructions on ARM.
This uses the LPT multiprocessor scheduling algorithm to lay out the bits
efficiently.
Saves ~450KB of instructions in a recent build of Chromium.
Differential Revision: http://reviews.llvm.org/D7954
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231043
91177308-0d34-0410-b5e6-
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Andrew Kaylor [Tue, 3 Mar 2015 00:41:03 +0000 (00:41 +0000)]
Remap arguments and non-alloca values used by outlined C++ exception handlers.
Differential Revision: http://reviews.llvm.org/D7844
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231042
91177308-0d34-0410-b5e6-
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Benjamin Kramer [Tue, 3 Mar 2015 00:17:09 +0000 (00:17 +0000)]
LoopIdiom: Give globals for memset_pattern16 private linkage.
There's really no reason to have them have entries in the symbol table
anymore. Old versions of ld64 had some bugs in this area but those have
been fixed long ago.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231041
91177308-0d34-0410-b5e6-
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Reid Kleckner [Tue, 3 Mar 2015 00:05:35 +0000 (00:05 +0000)]
WinEH: Run opt -instnamer over some cppeh tests and update CHECKs
In the future, we should run the output of clang through instnamer to
make it easier to manually edit test cases.
No functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231037
91177308-0d34-0410-b5e6-
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Sanjoy Das [Mon, 2 Mar 2015 23:29:37 +0000 (23:29 +0000)]
[ADT] fail-fast iterators for DenseMap
Summary:
This patch is an attempt at making `DenseMapIterator`s "fail-fast".
Fail-fast iterators that have been invalidated due to insertion into
the host `DenseMap` deterministically trip an assert (in debug mode)
on access, instead of non-deterministically hitting memory corruption
issues.
Reviewers: dexonsmith, dberlin, ruiu, chandlerc
Reviewed By: chandlerc
Subscribers: yaron.keren, chandlerc, llvm-commits
Differential Revision: http://reviews.llvm.org/D7931
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231035
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Michael Zolotukhin [Mon, 2 Mar 2015 23:24:40 +0000 (23:24 +0000)]
TLI: Factor out sanitizeFunctionName. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231034
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Benjamin Kramer [Mon, 2 Mar 2015 22:20:22 +0000 (22:20 +0000)]
IndexedMap: Document why SmallVector<T, 0> is preferable here.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231028
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Adrian Prantl [Mon, 2 Mar 2015 22:02:36 +0000 (22:02 +0000)]
Revert "Revert "For the dwarf expression code get the subtarget off of the current""
This reapplies r230990 without modifications.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@231024
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