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Cong Hou [Wed, 18 Nov 2015 01:20:37 +0000 (01:20 +0000)]
Let += and -= operators in BranchProbability have saturation behaviors.
This commit is for a later patch that is depend on it. The sum of two
branch probabilities can be greater than 1 due to rounding. It is safer
to saturate the results of sum and subtraction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253421
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Kostya Serebryany [Wed, 18 Nov 2015 01:08:30 +0000 (01:08 +0000)]
[libFuzzer] remove default initializer as a workaround for https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68399. Don't need it anyway.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253419
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Cong Hou [Wed, 18 Nov 2015 01:03:19 +0000 (01:03 +0000)]
Modify the interface BranchProbability::normalizeProbabilities to let it accept a pair of iterators. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253417
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Nathan Slingerland [Wed, 18 Nov 2015 00:55:15 +0000 (00:55 +0000)]
Revert "[llvm-profdata] Add SaturatingAdd/SaturatingMultiply Helper Functions"
Not ready for merge.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253415
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Cong Hou [Wed, 18 Nov 2015 00:52:52 +0000 (00:52 +0000)]
Improving edge probabilities computation when choosing the best successor in machine block placement.
When looking for the best successor from the outer loop for a block
belonging to an inner loop, the edge probability computation can be
improved so that edges in the inner loop are ignored. For example,
suppose we are building chains for the non-loop part of the following
code, and looking for B1's best successor. Assume the true body is very
hot, then B3 should be the best candidate. However, because of the
existence of the back edge from B1 to B0, the probability from B1 to B3
can be very small, preventing B3 to be its successor. In this patch, when
computing the probability of the edge from B1 to B3, the weight on the
back edge B1->B0 is ignored, so that B1->B3 will have 100% probability.
if (...)
do {
B0;
... // some branches
B1;
} while(...);
else
B2;
B3;
Differential revision: http://reviews.llvm.org/D10825
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253414
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Nathan Slingerland [Wed, 18 Nov 2015 00:52:45 +0000 (00:52 +0000)]
[llvm-profdata] Fix unhandled enumeration values warning
Fix this:
llvm/tools/llvm-profdata/llvm-profdata.cpp:78:15: warning: 12 enumeration values not handled in switch: 'success', 'eof', 'unrecognized_format'... [-Wswitch]
switch (instrError) {
^
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253413
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Nathan Slingerland [Wed, 18 Nov 2015 00:52:43 +0000 (00:52 +0000)]
[llvm-profdata] Add SaturatingAdd/SaturatingMultiply Helper Functions
Summary:
This change adds MathExtras helper functions for handling unsigned, saturating addition and multiplication. It also updates the instrumentation and sample profile merge implementations to use them.
No functional changes.
Reviewers: dnovillo, bogner, davidxl
Subscribers: davidxl, llvm-commits
Differential Revision: http://reviews.llvm.org/D14720
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253412
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Quentin Colombet [Wed, 18 Nov 2015 00:40:54 +0000 (00:40 +0000)]
[ARM] Enable shrink-wrapping by default.
Differential Revision: http://reviews.llvm.org/D14357
rdar://problem/
21942589
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253411
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David Blaikie [Wed, 18 Nov 2015 00:34:10 +0000 (00:34 +0000)]
Generalize ownership/passing semantics to allow dsymutil to own abbreviations via unique_ptr
While still allowing CodeGen/AsmPrinter in llvm to own them using a bump
ptr allocator. (might be nice to replace the pointers there with
something that at least automatically calls their dtors, if that's
necessary/useful, rather than having it done explicitly (I think a typed
BumpPtrAllocator already does this, or maybe a unique_ptr with a custom
deleter, etc))
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253409
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Rafael Espindola [Wed, 18 Nov 2015 00:31:34 +0000 (00:31 +0000)]
Remove excess white space
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253408
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Sanjay Patel [Wed, 18 Nov 2015 00:00:04 +0000 (00:00 +0000)]
[InstCombine] refactor optimizeIntToFloatBitCast() ; NFCI
The logic for handling the pattern without a shift is identical
to the logic for handling the pattern with a shift if you set
the shift amount to zero for the former.
This should make it easier to see that we probably don't even need
optimizeIntToFloatBitCast().
If we call something like foldVecTruncToExtElt() from visitTrunc(),
we'll solve PR25543:
https://llvm.org/bugs/show_bug.cgi?id=25543
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253403
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Nathan Slingerland [Tue, 17 Nov 2015 23:37:09 +0000 (23:37 +0000)]
[llvm-profdata] Show hint for other mismatch errors when merging instr profdata
Missed bit of feedback from D14720.
Show the same "Make sure that all profile
data to be merged is generated from the same binary." hint for hash mismatch
and value site count mismatch as we now do for counter mismatch when merging
incompatible instrumentation profile data.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253400
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Simon Pilgrim [Tue, 17 Nov 2015 23:29:49 +0000 (23:29 +0000)]
[X86][AVX512] Added AVX512 SHUFP*/VPERMILP* shuffle decode comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253396
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David Blaikie [Tue, 17 Nov 2015 23:26:06 +0000 (23:26 +0000)]
Fix read-of-uninitialized introduced in r253277 exposed on some buildbots
Verified that this was at least /an/ issue, if not the only one, by
initializing NumBuckets to 1 (previously it was uninitialized, so if
this change made a difference, which it did (causing a bunch of tests to
crash) it demonstrates use-of-uninitialized memory). Initializing then
removes the crashes.
Thanks Reid for the debugging assistance
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253395
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Xinliang David Li [Tue, 17 Nov 2015 23:00:40 +0000 (23:00 +0000)]
[PGO] Move value profile data definitions out of IndexedInstrProf
Move the data structure defintions out of the namespace. The defs will
be shared by raw format. [NFC]
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253394
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David Blaikie [Tue, 17 Nov 2015 22:39:26 +0000 (22:39 +0000)]
Fix null dereference committed in r253277
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253393
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David Blaikie [Tue, 17 Nov 2015 22:39:23 +0000 (22:39 +0000)]
dwarfdump: support indexed string dumping in dwp based on the STR_OFFSETS component of the index
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253392
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Simon Pilgrim [Tue, 17 Nov 2015 22:35:45 +0000 (22:35 +0000)]
[X86][AVX512] Added support for AVX512 UNPCK shuffle decode comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253391
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Nathan Slingerland [Tue, 17 Nov 2015 22:08:53 +0000 (22:08 +0000)]
[llvm-profdata] Improve error messaging when merging mismatched profile data
Summary:
This change tries to make the root cause of instrumented profile data merge failures clearer.
Previous:
$ llvm-profdata merge test_0.profraw test_1.profraw -o test_merged.profdata
test_1.profraw: foo: Function count mismatch
test_1.profraw: bar: Function count mismatch
test_1.profraw: baz: Function count mismatch
...
Changed:
$ llvm-profdata merge test_0.profraw test_1.profraw -o test_merged.profdata
test_1.profraw: foo: Function basic block count change detected (counter mismatch)
Make sure that all profile data to be merged is generated from the same binary.
test_1.profraw: bar: Function basic block count change detected (counter mismatch)
test_1.profraw: baz: Function basic block count change detected (counter mismatch)
...
Reviewers: dnovillo, davidxl, bogner
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D14739
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253384
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Simon Pilgrim [Tue, 17 Nov 2015 21:19:45 +0000 (21:19 +0000)]
[X86][SSE] Share AVX1/AVX2 shuffle tests with AVX512 where possible
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253379
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Reid Kleckner [Tue, 17 Nov 2015 21:10:25 +0000 (21:10 +0000)]
[WinEH] Move WinEHFuncInfo from MachineModuleInfo to MachineFunction
Summary:
Now that there is a one-to-one mapping from MachineFunction to
WinEHFuncInfo, we don't need to use a DenseMap to select the right
WinEHFuncInfo for the current funclet.
The main challenge here is that X86WinEHStatePass is an IR pass that
doesn't have access to the MachineFunction. I gave it its own
WinEHFuncInfo object that it uses to calculate state numbers, which it
then throws away. As long as nobody creates or removes EH pads between
this pass and SDAG construction, we will get the same state numbers.
The other thing X86WinEHStatePass does is to mark the EH registration
node. Instead of communicating which alloca was the registration through
WinEHFuncInfo, I added the llvm.x86.seh.ehregnode intrinsic. This
intrinsic generates no code and simply marks the alloca in use.
Reviewers: JCTremoulet
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D14668
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253378
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David Blaikie [Tue, 17 Nov 2015 21:08:05 +0000 (21:08 +0000)]
dwarfdump: Reference the appropriate line table segment when dumping dwp files
Also improves .dwo type unit dumping which didn't handle this either.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253377
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David Blaikie [Tue, 17 Nov 2015 20:38:54 +0000 (20:38 +0000)]
Fix -Wunused-function in a non-Win32 build
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253373
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Andrew Kaylor [Tue, 17 Nov 2015 20:13:04 +0000 (20:13 +0000)]
[EH] Keep filter clauses for types that have been caught.
The instruction combiner previously removed types from filter clauses in Landing Pad instructions if the type had previously been seen in a catch clause. This is incorrect and prevents unexpected exception handlers from rethrowing the caught type.
Differential Revision: http://reviews.llvm.org/D14669
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253370
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Ulrich Weigand [Tue, 17 Nov 2015 20:08:31 +0000 (20:08 +0000)]
[RuntimeDyld] Fix resolving R_PPC64_REL24 relocations
When resolving R_PPC64_REL24, code used to check for an address delta
that fits in 24 bits, while the instructions that take this relocation
actually can process address deltas that fit into *26* bits (as those
instructions have a 24 bit field, but implicitly append two zero bits
at the end since all instruction addresses are a multiple of 4).
This means that code would signal overflow once a single object's text
section exceeds 8 MB, while we can actually support up to 32 MB.
Partially fixes PR25540.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253369
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Mike Aizatsky [Tue, 17 Nov 2015 20:02:03 +0000 (20:02 +0000)]
adding sancov to Makefile directory list.
Differential Revision: http://reviews.llvm.org/D14753
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253368
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Yunzhong Gao [Tue, 17 Nov 2015 19:48:12 +0000 (19:48 +0000)]
Switch lto codegen to using diagnostic handlers.
This patch removes the std::string& argument from a number of C++ LTO API calls
and instead makes them use the installed diagnostic handler. This would also
improve consistency of diagnostic handling infrastructure: if an LTO client used
lto_codegen_set_diagnostic_handler() to install a custom error handler, we do
not want some error messages to go through the custom error handler, and some
other error messages to go into sLastErrorString.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253367
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George Burgess IV [Tue, 17 Nov 2015 19:48:06 +0000 (19:48 +0000)]
Specify explicit storage type for AllocType. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253366
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Elena Demikhovsky [Tue, 17 Nov 2015 19:30:51 +0000 (19:30 +0000)]
Vector of pointers in function attributes calculation
While setting function attributes we check all instructions that may access memory. For a call instruction we check all arguments. The special check is required for pointers.
I added vector-of-pointers to the call arguments types that should be checked.
Differential Revision: http://reviews.llvm.org/D14693
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253363
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Diego Novillo [Tue, 17 Nov 2015 19:04:46 +0000 (19:04 +0000)]
SamplePGO - Move debug/dump function bodies out of header files. NFC.
No point polluting the header declarations with debugging code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253361
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David Blaikie [Tue, 17 Nov 2015 19:00:52 +0000 (19:00 +0000)]
StringRef-ify some Option APIs
Patch by Eugene Kosov!
Differential Revision: http://reviews.llvm.org/D14711
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253360
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Sanjay Patel [Tue, 17 Nov 2015 18:46:56 +0000 (18:46 +0000)]
fix typos; NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253359
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Sanjay Patel [Tue, 17 Nov 2015 18:37:23 +0000 (18:37 +0000)]
use local variables; NFCI
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253356
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Mike Aizatsky [Tue, 17 Nov 2015 18:25:21 +0000 (18:25 +0000)]
enabling sancov tests on linux x86_64 only
Differential Revision: http://reviews.llvm.org/D14728
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253354
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Charlie Turner [Tue, 17 Nov 2015 17:25:15 +0000 (17:25 +0000)]
[ARM] Don't pessimize i32 vselect.
The underlying issues surrounding codegen for 32-bit vselects have been resolved. The pessimistic costs for 64-bit vselects remain due to the bad
scalarization that is still happening there.
I tested this on A57 in T32, A32 and A64 modes. I saw no regressions, and some improvements.
From my benchmarks, I saw these improvements in A57 (T32)
spec.cpu2000.ref.177_mesa 5.95%
lnt.SingleSource/Benchmarks/Shootout/strcat 12.93%
lnt.MultiSource/Benchmarks/MiBench/telecomm-CRC32/telecomm-CRC32 11.89%
I also measured A57 A32, A53 T32 and A9 T32 and found no performance regressions. I see much bigger wins in third-party benchmarks with this change
Differential Revision: http://reviews.llvm.org/D14743
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253349
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Sanjay Patel [Tue, 17 Nov 2015 17:24:08 +0000 (17:24 +0000)]
function names start with a lower case letter; NFC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253348
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Pawel Bylica [Tue, 17 Nov 2015 16:54:32 +0000 (16:54 +0000)]
[Support] Tweak path::system_temp_directory() on Windows.
Summary:
This patch changes the behavior of path::system_temp_directory() on Windows to be closer to GetTempPath Windows API call. Enforces path separator to be the native one, makes path absolute, etc. GetTempPath is not used directly because of limitations/implementation bugs on Windows 7.
Windows specific unit tests are added. Most of them runs in separated process with modified environment variables.
This change fixes FileSystemTest.CreateDir unittest that had been failing when run from Unix-like shell on Windows (Unix-like path separator (/) used in env variables).
Reviewers: chapuni, rafael, aaron.ballman
Subscribers: rafael, llvm-commits
Differential Revision: http://reviews.llvm.org/D14231
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253345
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Ahmed Bougacha [Tue, 17 Nov 2015 16:45:40 +0000 (16:45 +0000)]
[AArch64] Promote f16 SELECT_CC CC operands when op is legal.
SELECT_CC has the nasty property of having operands with unrelated
types. So if you do something like:
f32 = select_cc f16, f16, f32, f32, cc
You'd only look for the action for <select_cc, f32>, but never f16.
If the types are all legal, but the op isn't (as for f16 on AArch64,
or for f128 on x86_64/AArch64?), then you get into trouble.
For f128, we have softenSetCCOperands to handle this case.
Similarly, for f16, we can directly promote the CC operands.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253344
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Davide Italiano [Tue, 17 Nov 2015 16:37:52 +0000 (16:37 +0000)]
[llvm-rtdyld] Don't waste cycles invalidating instruction cache.
Now that setExecutable() changed to do all the ground work to make
memory executable on the host, we can remove all (redundant) calls
to invalidate instruction cache here.
As an added bonus, this makes invalidateInstructionCache() dead
code, so it can be removed.
Differential Revision: http://reviews.llvm.org/D13631
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253343
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Davide Italiano [Tue, 17 Nov 2015 16:34:28 +0000 (16:34 +0000)]
[JIT/Memory] Fix up semantic of setExecutable().
setExecutable() should do everything that's needed to make the memory
executable on host, i.e. unconditionally set permissions + invalidate
instruction cache. llvm-rtdyld will be updated in my next commit.
Discusseed with: Lang Hames (as part of D13631).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253341
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Dan Gohman [Tue, 17 Nov 2015 16:15:11 +0000 (16:15 +0000)]
Update DebugInfo tests for the change in DEBUG_VALUE output in r253338.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253340
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Pat Gavlin [Tue, 17 Nov 2015 16:04:21 +0000 (16:04 +0000)]
Lower statepoints with multi-def targets.
Statepoint lowering currently expects that the target method of a
statepoint only defines a single value. This precludes using
statepoints with ABIs that return values in multiple registers
(e.g. the SysV AMD64 ABI). This change adds support for lowering
statepoints with mutli-def targets.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253339
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Dan Gohman [Tue, 17 Nov 2015 16:01:28 +0000 (16:01 +0000)]
Use TargetRegisterInfo for printing MachineOperand register comments
Several places in AsmPrinter.cpp print comments describing MachineOperand
registers using MCRegisterInfo, which uses MCOperand-oriented names. This
doesn't work for targets that use virtual registers exclusively, as
WebAssembly does, since virtual registers are represented and printed
differently.
This patch preserves what seems to be the spirit of r229978, avoiding the
use of TM.getSubtargetImpl(), while still using MachineOperand-oriented
printing for MachineOperands.
Differential Revision: http://reviews.llvm.org/D14709
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253338
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Chad Rosier [Tue, 17 Nov 2015 13:58:10 +0000 (13:58 +0000)]
Typo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253336
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Bradley Smith [Tue, 17 Nov 2015 13:38:29 +0000 (13:38 +0000)]
[ARM] Default to ARMv4t in favour of adding Other to ARMArch
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253335
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Charlie Turner [Tue, 17 Nov 2015 13:21:35 +0000 (13:21 +0000)]
[ARM] Match VABDL from log2 shuffles.
Differential Revision: http://reviews.llvm.org/D14664
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253334
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Zlatko Buljan [Tue, 17 Nov 2015 12:54:15 +0000 (12:54 +0000)]
[mips][microMIPS] Implement EXTP, EXTPDP, EXTPDPV, EXTPV, EXTR[_RS].W, EXTR_S.H, EXTRV[_RS].W and EXTRV_S.H instructions
Differential Revision: http://reviews.llvm.org/D14174
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253332
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Bradley Smith [Tue, 17 Nov 2015 11:57:33 +0000 (11:57 +0000)]
[ARM] Properly initialize ARMArch in the ARM subtarget
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253331
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Zlatko Buljan [Tue, 17 Nov 2015 10:11:22 +0000 (10:11 +0000)]
[mips][microMIPS] Implement SUBQ[_S].PH, SUBQ_S.W, SUBQH[_R].PH, SUBQH[_R].W, SUBU[_S].PH, SUBU[_S].QB and SUBUH[_R].QB instructions
Differential Revision: http://reviews.llvm.org/D14114
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253329
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Oliver Stannard [Tue, 17 Nov 2015 10:00:43 +0000 (10:00 +0000)]
[Assembler] Make fatal assembler errors non-fatal
Currently, if the assembler encounters an error after parsing (such as an
out-of-range fixup), it reports this as a fatal error, and so stops after the
first error. However, for most of these there is an obvious way to recover
after emitting the error, such as emitting the fixup with a value of zero. This
means that we can report on all of the errors in a file, not just the first
one. MCContext::reportError records the fact that an error was encountered, so
we won't actually emit an object file with the incorrect contents.
Differential Revision: http://reviews.llvm.org/D14717
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253328
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Oliver Stannard [Tue, 17 Nov 2015 09:58:07 +0000 (09:58 +0000)]
[Assembler] Allow non-fatal errors after parsing
This adds reportError to MCContext, which can be used as an alternative to
reportFatalError when the assembler wants to try to continue processing the
rest of the file after the error is reported, so that all of the errors ina
file can be reported. It records the fact that an error was encountered, so we
can avoid emitting an object file if any errors occurred.
This patch doesn't add any uses of this function (a later patch will convert
most uses of reportFatalError to use it), but there is a small functional
change: we use the SourceManager to print the error message, even if we have a
null SMLoc. This means that we get a SourceManager-style message, with the file
and line information shown as <unknown>, rather than the "LLVM ERROR" style
used by report_fatal_error.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253327
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Zlatko Buljan [Tue, 17 Nov 2015 09:43:29 +0000 (09:43 +0000)]
[mips][microMIPS] Implement PRECEQ.W.PHL, PRECEQ.W.PHR, PRECEQU.PH.QBL, PRECEQU.PH.QBLA, PRECEQU.PH.QBR, PRECEQU.PH.QBRA, PRECEU.PH.QBL, PRECEU.PH.QBLA, PRECEU.PH.QBR and PRECEU.PH.QBRA instructions
Differential Revision: http://reviews.llvm.org/D14279
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253326
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Jay Foad [Tue, 17 Nov 2015 08:54:53 +0000 (08:54 +0000)]
Fix typos in comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253324
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David Majnemer [Tue, 17 Nov 2015 08:15:14 +0000 (08:15 +0000)]
[AliasAnalysis] CatchPad and CatchRet can modify escaped memory
CatchPad and CatchRet behave a lot like function calls: they can
potentially modify any memory which has been escaped.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253323
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David Majnemer [Tue, 17 Nov 2015 08:15:08 +0000 (08:15 +0000)]
Fix a typo in BasicAliasAnalysis
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253322
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Igor Breger [Tue, 17 Nov 2015 08:03:43 +0000 (08:03 +0000)]
AVX512 : regenerate the test file against trunk.
Differential Revision: http://reviews.llvm.org/D14742
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253321
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Zlatko Buljan [Tue, 17 Nov 2015 07:58:27 +0000 (07:58 +0000)]
Added microMIPSDSPr1 assembler and disassembler tests to existing microMIPSDSPr2 test files.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253320
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Rafael Espindola [Tue, 17 Nov 2015 05:11:44 +0000 (05:11 +0000)]
Add MemoryBufferRef(MemoryBuffer&) constructor.
patch by Jonathan Anderson!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253311
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Xinliang David Li [Tue, 17 Nov 2015 03:47:21 +0000 (03:47 +0000)]
Fix unaligned memory read issue exposed by ubsan
Indexed profile data as designed today does not guarantee
counter data to be well aligned, so reading needs to use
the slower form (with memcpy). This is less than ideal and
should be improved in the future (i.e., with fixed length
function key instead of variable length name key).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253309
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Davide Italiano [Tue, 17 Nov 2015 02:17:35 +0000 (02:17 +0000)]
[Documentation] Add guidelines for grouping tests together.
This was considered a good practice but it was not documented. Now it is.
Differential Revision: http://reviews.llvm.org/D14733
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253281
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Rafael Espindola [Tue, 17 Nov 2015 00:51:23 +0000 (00:51 +0000)]
Drop prelink support.
The way prelink used to work was
* The compiler decides if a given section only has relocations that
are know to point to the same DSO. If so, it names it
.data.rel.ro.local<something>.
* The static linker puts all of these together.
* The prelinker program assigns addresses to each library and resolves
the local relocations.
There are many problems with this:
* It is incompatible with address space randomization.
* The information passed by the compiler is redundant. The linker
knows if a given relocation is in the same DSO or not. If could sort
by that if so desired.
* There are newer ways of speeding up DSO (gnu hash for example).
* Even if we want to implement this again in the compiler, the previous
implementation is pretty broken. It talks about relocations that are
"resolved by the static linker". If they are resolved, there are none
left for the prelinker. What one needs to track is if an expression
will require only dynamic relocations that point to the same DSO.
At this point it looks like the prelinker is an historical curiosity.
For example, fedora has retired it because it failed to build for two
releases
(http://pkgs.fedoraproject.org/cgit/prelink.git/commit/?id=
eb43100a8331d91c801ee3dcdb0a0bb9babfdc1f)
This patch removes support for it. That is, it stops printing the
".local" sections.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253280
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Matthias Braun [Tue, 17 Nov 2015 00:50:55 +0000 (00:50 +0000)]
Assume lane masks are always precise
Allowing imprecise lane masks in case of more than 32 sub register lanes
lead to some tricky corner cases, and I need another bugfix for another
one. Instead I rather declare lane masks as precise and let tablegen
abort if we do not have enough bits.
This does not affect any in-tree target, even AMDGPU only needs 16 lanes
at the moment. If the 32 lanes turn out to be a problem in the future,
then we can easily change the LaneBitmask typedef to uint64_t.
Differential Revision: http://reviews.llvm.org/D14557
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253279
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David Blaikie [Tue, 17 Nov 2015 00:41:02 +0000 (00:41 +0000)]
Fix indentation
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253278
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David Blaikie [Tue, 17 Nov 2015 00:39:55 +0000 (00:39 +0000)]
dwarfdump: Use the index to find the right abbrev offset in DWP files
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253277
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Derek Schuff [Tue, 17 Nov 2015 00:20:44 +0000 (00:20 +0000)]
[WebAssembly] Fix printing of global operands
This was regressed in r252656 which wasn't quite NFC. Instead of using a
custom instruction as before, use a pattern to select CONST_I32 for the
global addrs.
Differential Revision: http://reviews.llvm.org/D14587
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253276
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Philip Reames [Tue, 17 Nov 2015 00:15:09 +0000 (00:15 +0000)]
[PRE] Preserve !invariant.load metadata
Spoted via inspection. Test case included.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253275
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Simon Pilgrim [Mon, 16 Nov 2015 23:03:18 +0000 (23:03 +0000)]
[X86][SSE] Merged BLEND shuffle decode comments. NFC.
Now that we can recognise different vector sizes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253268
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David Blaikie [Mon, 16 Nov 2015 22:56:30 +0000 (22:56 +0000)]
Demote a single-use named function object to a lambda
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253267
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Simon Pilgrim [Mon, 16 Nov 2015 22:54:41 +0000 (22:54 +0000)]
[X86][SSE] Merged ALIGNR/SLLDQ/SRLDQ shuffle decode comments. NFC.
Now that we can recognise different vector sizes - will make future AVX512 additions easier.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253266
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Simon Pilgrim [Mon, 16 Nov 2015 22:39:27 +0000 (22:39 +0000)]
[X86][SSE] Merged SHUF/PERM shuffle decode comments. NFC.
Now that we can recognise different vector sizes - will make future AVX512 additions easier.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253260
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Simon Pilgrim [Mon, 16 Nov 2015 22:21:10 +0000 (22:21 +0000)]
[X86][SSE] Merged UNPCK shuffle decode comments. NFC.
Now that we can recognise different vector sizes - will make future AVX512 additions easier.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253258
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Sanjay Patel [Mon, 16 Nov 2015 22:16:52 +0000 (22:16 +0000)]
use range-based for loop; NFCI
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253256
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Stephen Canon [Mon, 16 Nov 2015 21:52:48 +0000 (21:52 +0000)]
Add isInteger() to APFloat.
Useful utility function; this wasn't too hard to do before, but also wasn't
obviously discoverable. Make it explicit. Reviewed offline by Michael
Gottesman.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253254
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Michael Zolotukhin [Mon, 16 Nov 2015 21:17:26 +0000 (21:17 +0000)]
[PR25538]: Fix a failure caused by r253126.
In r253126 we stopped to recompute LCSSA after loop unrolling in all
cases, except the unrolling is full and at least one of the loop exits
is outside the parent loop. In other cases the transformation should not
break LCSSA, but it turned out, that we also call SimplifyLoop on the
parent loop, which might break LCSSA by itself. This fix just triggers
LCSSA recomputation in this case as well.
I'm committing it without a test case for now, but I'll try to invent
one. It's a bit tricky because in an isolated test LoopSimplify would
be scheduled before LoopUnroll, and thus will change the test and hide
the problem.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253253
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Derek Schuff [Mon, 16 Nov 2015 21:12:41 +0000 (21:12 +0000)]
[WebAssembly] Fix function return type printing
Summary:
Previously return type information for a function was derived from
return dag nodes. But this didn't work for dags with != return node. So
instead compute it directly from the LLVM function as is done for imports.
Differential Revision: http://reviews.llvm.org/D14593
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253251
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Derek Schuff [Mon, 16 Nov 2015 21:04:51 +0000 (21:04 +0000)]
[WebAssembly] Reverse the order of operands for br_if
Summary: This is to match the new version in the spec
Reviewers: sunfish
Subscribers: jfb, llvm-commits, dschuff
Differential Revision: http://reviews.llvm.org/D14519
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253249
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David Majnemer [Mon, 16 Nov 2015 20:55:57 +0000 (20:55 +0000)]
[IR] Manage TheNoneToken with a std::unique_ptr
Hopefully, this will make the sanitizer build bots happy.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253248
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Kit Barton [Mon, 16 Nov 2015 20:22:15 +0000 (20:22 +0000)]
Find available scratch register to use in function prologue and epilogue as part of shrink wrapping.
Phabricator: http://reviews.llvm.org/D13955
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253247
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Reid Kleckner [Mon, 16 Nov 2015 18:47:25 +0000 (18:47 +0000)]
[WinEH] Don't let UnwindHelp alias the return address
On top of that, don't bother allocating and initializing UnwindHelp if
we don't have any funclets. Currently we always use RBP as our frame
pointer when funclets are present, so this change makes it impossible to
come here without any fixed stack objects.
Fixes PR25533.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253245
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Reid Kleckner [Mon, 16 Nov 2015 18:47:12 +0000 (18:47 +0000)]
Use the subtarget reference that we already have
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253244
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Owen Anderson [Mon, 16 Nov 2015 18:07:30 +0000 (18:07 +0000)]
Add intermediate subtract instructions to reassociation worklist.
We sometimes create intermediate subtract instructions during
reassociation. Adding these to the worklist to revisit exposes many
additional reassociation opportunities.
Patch by Aditya Nandakumar.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253240
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David Majnemer [Mon, 16 Nov 2015 17:37:58 +0000 (17:37 +0000)]
[LoopStrengthReduce] Don't increment iterator past the end of the BB
We tried to move the insertion point beyond instructions like landingpad
and cleanuppad.
However, we *also* tried to move past catchpad. This is problematic
because catchpad is also a terminator.
This fixes PR25541.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253238
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Vasileios Kalintiris [Mon, 16 Nov 2015 17:05:01 +0000 (17:05 +0000)]
[mips] Disable code generation through FastISel for MIPS32R6.
Reviewers: dsanders
Subscribers: llvm-commits, dsanders
Differential Revision: http://reviews.llvm.org/D14708
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253225
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Davide Italiano [Mon, 16 Nov 2015 16:54:28 +0000 (16:54 +0000)]
[SimplifyLibCalls] Generalize a comment. This doesn't apply only to sqrt.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253224
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Petr Pavlu [Mon, 16 Nov 2015 16:41:13 +0000 (16:41 +0000)]
[ARM] Prevent use of a value pointed by end() iterator when placing a jump table
Function ARMConstantIslands::doInitialJumpTablePlacement() iterates over all
basic blocks in a machine function. It calls `MI = MBB.getLastNonDebugInstr()`
to get the last instruction in each block and then uses MI->getOpcode() to
decide what to do. If getLastNonDebugInstr() returns MBB.end() (for example,
when the block does not contain any instructions) then calling getOpcode() on
this value is incorrect. Avoid this problem by checking the result of
getLastNonDebugInstr().
Differential Revision: http://reviews.llvm.org/D14694
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253222
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Oliver Stannard [Mon, 16 Nov 2015 16:25:47 +0000 (16:25 +0000)]
[ARM,AArch64] Store source location of asm constant pool entries
Storing the source location of the expression that created a constant pool
entry allows us to emit better error messages if we later discover that the
expression cannot be represented by a relocation.
Differential Revision: http://reviews.llvm.org/D14646
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253220
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Oliver Stannard [Mon, 16 Nov 2015 16:22:47 +0000 (16:22 +0000)]
[ARM,AArch64] Store source location for values in assembly files
The MCValue class can store a SMLoc to allow better error messages to be
emitted if an error is detected after parsing. The ARM and AArch64 assembly
parsers were not setting this, so error messages did not have source
information.
Differential Revision: http://reviews.llvm.org/D14645
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253219
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Dan Gohman [Mon, 16 Nov 2015 16:18:28 +0000 (16:18 +0000)]
[WebAssembly] Prototype passes for register coloring and register stackifying.
These passes are not yet enabled by default.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253217
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Daniel Sanders [Mon, 16 Nov 2015 14:19:32 +0000 (14:19 +0000)]
[mips][ias] Remove spurious ';' from inline assembly test.
IAS will not emit it. NFC at the moment but will prevent a test failure once
IAS is enabled.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253210
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Daniel Sanders [Mon, 16 Nov 2015 14:16:45 +0000 (14:16 +0000)]
[mips][ias] Accept $31 or $ra in hf16call32.ll. IAS prints the latter.
NFC at the moment, but it will prevent a test failure once IAS is enabled.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253209
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Daniel Sanders [Mon, 16 Nov 2015 14:14:59 +0000 (14:14 +0000)]
[mips][ias] Allow whitespace after commas in inlineasm*.ll tests.
IAS always prints whitespace after a comma. NFC at the moment but this will
prevent failures when IAS is enabled.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253208
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Artyom Skrobov [Mon, 16 Nov 2015 14:05:32 +0000 (14:05 +0000)]
Handle ARMv6KZ naming
Summary:
* ARMv6KZ is the "canonical" name, given in the ARMARM
* ARMv6Z is an "official abbreviation" for it, mentioned in the ARMARM
* ARMv6ZK is a popular misspelling, which we should support as an alias.
The patch corrects the handling of the names.
Functional changes:
* ARMv6Z no longer treated as an architecture in its own right
* ARMv6ZK renamed to ARMv6KZ, accepting ARMv6ZK as an alias
* arm1176jz-s and arm1176jzf-s recognized as ARMv6ZK, instead of ARMv6K
* default ARMv6K CPU changed to arm1176j-s
Reviewers: rengolin, logan, compnerd
Subscribers: aemerson, llvm-commits, rengolin
Differential Revision: http://reviews.llvm.org/D14568
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253206
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Artyom Skrobov [Mon, 16 Nov 2015 12:08:05 +0000 (12:08 +0000)]
NFC refactorings in lib/Support/TargetParser.cpp
Summary:
* declare FPUNames, ARCHNames, ARCHExtNames, HWDivNames, CPUNames
as static const
* implement getDefaultExtensions with a StringSwitch, in the same
way getDefaultFPU is implemented
Reviewers: rengolin
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D14648
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253201
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Bradley Smith [Mon, 16 Nov 2015 11:15:22 +0000 (11:15 +0000)]
[ARM] Allow TargetParser to accurately target architectures
Instead of defaulting to an empty string, we want to default to
the CPU 'generic' in the case of no valid default CPU being found,
(as long as the architecture is actually valid).
In order to do this we add a default FPU for each architecture, as
well as falling back to architecture defaults for extensions and FPU
in the case of a generic CPU is specified.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253198
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Bradley Smith [Mon, 16 Nov 2015 11:10:19 +0000 (11:10 +0000)]
[ARM] Introduce subtarget features per ARM architecture.
This allows for accurate architecture targeting as well as removing
duplicate information (hardcoded feature strings) from MCTargetDesc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253196
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James Molloy [Mon, 16 Nov 2015 10:49:25 +0000 (10:49 +0000)]
Properly check if a CMPZ node is in fact comparing against zero
This was left implicit and never ever checked, which means we could have a CMPZ against some non-zero value and we were carrying on with BFI conversion regardless.
Caught by Oliver Stannard using csmith; regression test added.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253195
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Pavel Labath [Mon, 16 Nov 2015 10:40:38 +0000 (10:40 +0000)]
Don't generate discriminators for calls to debug intrinsics
Summary:
This fails a check in Verifier.cpp, which checks for location matches between the declared
variable and the !dbg attachments.
Reviewers: dnovillo, dblaikie, danielcdh
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D14657
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253194
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Oliver Stannard [Mon, 16 Nov 2015 10:25:19 +0000 (10:25 +0000)]
[AArch64] ldr= pseudo-instruction silently ignored if register invalid
The AArch64 assembler was silently ignoring instructions like this:
ldr foo, =bar
AArch64AsmParser::parseOperand was returning true as the parse failed, but was
not calling AArch64AsmParser::Error to report this to the user, so the
instruction was ignored without printing an error message.
Differential Revision: http://reviews.llvm.org/D14651
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253193
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James Molloy [Mon, 16 Nov 2015 10:16:22 +0000 (10:16 +0000)]
[GlobalOpt] Address post-commit review comments on r253168
Address Duncan Exon Smith's comments on D14148, which was added after the patch had been LGTM'd and committed:
* clang-format one area where whitespace diffs occurred.
* Add a threshold to limit the store/load dominance checks as they are quadratic.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253192
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Benjamin Kramer [Mon, 16 Nov 2015 09:01:28 +0000 (09:01 +0000)]
Move helper classes into anonymous namespaces. NFC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@253189
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