Eric Fiselier [Fri, 20 Mar 2015 22:13:37 +0000 (22:13 +0000)]
Fix use of incorrect package name in sym_check
llvm-svn: 232856
Eric Fiselier [Fri, 20 Mar 2015 22:09:29 +0000 (22:09 +0000)]
Add symbol checking script to libc++ to help manage exported symbols.
Summary:
Add symbol checking scripts for extracting a list of symbols from shared libraries and for comparing symbol lists for differences.
Reviewers: mclow.lists, danalbert, EricWF
Reviewed By: EricWF
Subscribers: majnemer, emaste, cfe-commits
Differential Revision: http://reviews.llvm.org/D4946
llvm-svn: 232855
Yunzhong Gao [Fri, 20 Mar 2015 22:08:40 +0000 (22:08 +0000)]
Tell lit.cfg about more Windows triples.
For example, the host triple on my 64-bit PC is x86_64-pc-windows-msvc.
llvm-svn: 232854
Richard Smith [Fri, 20 Mar 2015 21:56:50 +0000 (21:56 +0000)]
[modules] Remove temporary IdentifierInfo lookup results when we're done with them.
llvm-svn: 232853
Sanjay Patel [Fri, 20 Mar 2015 21:47:56 +0000 (21:47 +0000)]
[X86, AVX] instcombine common cases of vperm2* intrinsics into shuffles
vperm2* intrinsics are just shuffles.
In a few special cases, they're not even shuffles.
Optimizing intrinsics in InstCombine is better than
handling this in the front-end for at least two reasons:
1. Optimizing custom-written SSE intrinsic code at -O0 makes vector coders
really angry (and so I have regrets about some patches from last week).
2. Doing mask conversion logic in header files is hard to write and
subsequently read.
There are a couple of TODOs in this patch to complete this optimization.
Differential Revision: http://reviews.llvm.org/D8486
llvm-svn: 232852
Andrew Kaylor [Fri, 20 Mar 2015 21:42:54 +0000 (21:42 +0000)]
Fixing a bug with WinEH PHI handling
llvm-svn: 232851
Sanjay Patel [Fri, 20 Mar 2015 21:19:52 +0000 (21:19 +0000)]
[X86] Prefer blendps over insertps codegen for one special case
With this patch, for this one exact case, we'll generate:
blendps %xmm0, %xmm1, $1
instead of:
insertps %xmm0, %xmm1, $0
If there's a memory operand available for load folding and we're
optimizing for size, we'll still generate the insertps.
The detailed performance data motivation for this may be found in D7866;
in summary, blendps has 2-3x throughput vs. insertps on widely used chips.
Differential Revision: http://reviews.llvm.org/D8332
llvm-svn: 232850
Jordan Rose [Fri, 20 Mar 2015 21:12:27 +0000 (21:12 +0000)]
[analyzer] RetainCountChecker: Don't assume +0 for ivars backing readonly properties.
Similarly, don't assume +0 if the property's setter is manually implemented.
In both cases, if the property's ownership is explicitly written, then we /do/
assume the ivar has the same ownership.
rdar://problem/
20218183
llvm-svn: 232849
Benjamin Kramer [Fri, 20 Mar 2015 21:07:30 +0000 (21:07 +0000)]
X86: Make helper functions static. NFC.
llvm-svn: 232848
Eric Christopher [Fri, 20 Mar 2015 21:05:18 +0000 (21:05 +0000)]
Remove dead calls and function arguments dealing with TRI in StackMaps.
llvm-svn: 232847
Kostya Serebryany [Fri, 20 Mar 2015 20:45:42 +0000 (20:45 +0000)]
[asan] update the sized_delete_test following the change of clang flags in r232788.
llvm-svn: 232845
Duncan P. N. Exon Smith [Fri, 20 Mar 2015 20:17:07 +0000 (20:17 +0000)]
DebugInfo: Require valid DIDescriptors
As part of PR22777, switch from `dyn_cast_or_null<>` to `cast<>` in most
`DIDescriptor` accessors. These classes are lightweight wrappers around
pointers, so the users should check for valid pointers before using
them.
This survives a Darwin clang -g bootstrap (after fixing testcases), but
it's possible the bots will complain about other configurations. I'll
fix any fallout as quickly as I can! Once this bakes for a bit I'll
remove the macros.
Note that `DebugLoc` implicitly gets stricter with this change as well,
since it forward to `DILocation`. Any code that's using `DebugLoc`
accessors should check `DebugLoc::isUnknown()` first. (BTW, I'm also
partway through a cleanup of the `DebugLoc` API to make it more obvious
what it is (a glorified pointer wrapper) and remove cruft from before
the Metadata/Value split. I'll commit soon.)
llvm-svn: 232844
Rafael Espindola [Fri, 20 Mar 2015 20:00:30 +0000 (20:00 +0000)]
Update for llvm api change.
llvm-svn: 232843
Rafael Espindola [Fri, 20 Mar 2015 20:00:01 +0000 (20:00 +0000)]
Don't declare all text sections at the start of the .s
The code this patch removes was there to make sure the text sections went
before the dwarf sections. That is necessary because MachO uses offsets
relative to the start of the file, so adding a section can change relaxations.
The dwarf sections were being printed at the start just to produce symbols
pointing at the start of those sections.
The underlying issue was fixed in r231898. The dwarf sections are now printed
when they are about to be used, which is after we printed the text sections.
To make sure we don't regress, the patch makes the MachO streamer assert
if CodeGen puts anything unexpected after the DWARF sections.
llvm-svn: 232842
Ed Maste [Fri, 20 Mar 2015 19:59:35 +0000 (19:59 +0000)]
Avoid output on successful execution of the SWIG scripts
Standard practice for tools like this upon success is no output and a
zero return value.
llvm-svn: 232841
Ed Maste [Fri, 20 Mar 2015 19:53:49 +0000 (19:53 +0000)]
Fixup whitespace in finishSwigWrapperClasses.py
- replace hard tabs with 4-space indents
- delete EOL whitespace
llvm-svn: 232840
Duncan P. N. Exon Smith [Fri, 20 Mar 2015 19:51:34 +0000 (19:51 +0000)]
Bugpoint: Fix invalid 'inlinedAt:' references in testcase
These are causing crashes in `DebugInfoFinder` after a WIP patch to
increase strictness of `DIDescriptor` accessors.
llvm-svn: 232839
Duncan P. N. Exon Smith [Fri, 20 Mar 2015 19:50:00 +0000 (19:50 +0000)]
AsmPrinter: Check subprogram before using it
Check return of `getDISubprogram()` before using it. A WIP patch makes
`DIDescriptor` accessors more strict (and would crash on this).
llvm-svn: 232838
Rafael Espindola [Fri, 20 Mar 2015 19:48:54 +0000 (19:48 +0000)]
Reorganize the x86 ELF relocation selection logic.
The main differences are:
* Split in 32 and 64 bit functions.
* First switch on the Modifier so that we have only one non fully covered
switch.
* Map the fixup kind first to a x86_64 (or i386) specific enum, to make
it easy to handle cases like X86::reloc_riprel_4byte_movq_load.
* Switch on IsPCRel last, which reduces code duplication.
Fixes pr22308.
llvm-svn: 232837
Duncan P. N. Exon Smith [Fri, 20 Mar 2015 19:37:03 +0000 (19:37 +0000)]
DwarfDebug: Check for null DebugLocs
`DL` might be null, so check for that before using accessors. A WIP
patch to make `DIDescriptors` more strict fails otherwise.
As a bonus, I think the logic is easier to follow now (despite the extra
nesting depth).
llvm-svn: 232836
Duncan P. N. Exon Smith [Fri, 20 Mar 2015 19:26:58 +0000 (19:26 +0000)]
Verifier: Check that !dbg attachments have the right type
A WIP patch makes `DIDescriptor` accessors more strict, which in turn
causes the `DebugInfoFinder` to crash on wrongly typed `!dbg`
attachments. Catch that error up front in
`Verifier::visitInstruction()`.
Also remove a test that we "handle" invalid `!dbg` attachments, added
back in r99938. We don't want to handle those anymore.
Note: I'm *not* recursing and verifying the debug info graph reachable
from this node; that work is already done by `verifyDebugInfo()`.
llvm-svn: 232834
Duncan P. N. Exon Smith [Fri, 20 Mar 2015 19:13:53 +0000 (19:13 +0000)]
DebugInfoFinder: Check for null imported entities
Don't use the accessors in `DIImportedEntity` on a null pointer. (A WIP
patch to make `DIDescriptor` accessors more strict crashes here
otherwise.)
llvm-svn: 232833
Duncan P. N. Exon Smith [Fri, 20 Mar 2015 18:48:45 +0000 (18:48 +0000)]
SanitizerCoverage: Check for null DebugLocs
After a WIP patch to make `DIDescriptor` accessors more strict, this
started asserting.
llvm-svn: 232832
Hans Wennborg [Fri, 20 Mar 2015 18:48:40 +0000 (18:48 +0000)]
SelectionDAGBuilder: Rangeify a loop. NFC.
llvm-svn: 232831
Hans Wennborg [Fri, 20 Mar 2015 18:48:31 +0000 (18:48 +0000)]
SelectionDAGBuilder::handleJTSwitchCase, simplify loop; NFC
llvm-svn: 232830
Alexey Samsonov [Fri, 20 Mar 2015 18:45:06 +0000 (18:45 +0000)]
[UBSan] Don't allow to use UBSan with anything except for ASan.
We are not able to make a reliable solution for using UBSan together
with other sanitizers with runtime support (and sanitizer_common).
Instead, we want to follow the path used for LSan: have a "standalone"
UBSan tool, and plug-in UBSan that would be explicitly embedded into
specific sanitizers (in short term, it will be only ASan).
llvm-svn: 232829
Duncan P. N. Exon Smith [Fri, 20 Mar 2015 18:34:53 +0000 (18:34 +0000)]
Rewrite test/Feature/md_on_instruction.ll
This test is supposed to be testing whether metadata attachments to
instructions work, but it was using invalid debug info to do so. (This
was causing assertion failures in the `DebugInfoFinder` with a WIP patch
to be more strict about `DIDescriptor` accessors.)
Rather than fix the debug info -- which is better tested elsewhere --
just test the IR feature directly.
llvm-svn: 232828
Wei Mi [Fri, 20 Mar 2015 18:33:12 +0000 (18:33 +0000)]
Correctly estimate SROA savings for store operands in inline cost analysis.
When estimating SROA savings, we want to see if an address is derived
off an alloca in the caller. For store instructions, operand 1 is the
address operand, but the current code uses operand 0. Use
getPointerOperand for loads and stores to fix this.
Patch by Easwaran Raman.
http://reviews.llvm.org/D8425
llvm-svn: 232827
Daniel Berlin [Fri, 20 Mar 2015 18:05:49 +0000 (18:05 +0000)]
Small optimization to avoid getting pass info when we will not run loop
llvm-svn: 232826
John Brawn [Fri, 20 Mar 2015 17:20:07 +0000 (17:20 +0000)]
[ARM] Fix handling of thumb1 out-of-range frame offsets
LocalStackSlotPass assumes that isFrameOffsetLegal doesn't change its
answer when the base register changes. Unfortunately this isn't true
in thumb1, where SP-based loads allow a larger offset than
non-SP-based loads, and this causes the base register reuse code to
generate instructions that are unencodable, causing an assertion
failure.
Solve this by adding a BaseReg parameter to isFrameOffsetLegal, which
ARMBaseRegisterInfo can then make use of to give the correct answer.
Differential Revision: http://reviews.llvm.org/D8419
llvm-svn: 232825
David Majnemer [Fri, 20 Mar 2015 17:03:35 +0000 (17:03 +0000)]
MS ABI: Accept calls to an unprototyped declaration of _setjmp
This fixes PR22961.
llvm-svn: 232824
Zachary Turner [Fri, 20 Mar 2015 16:23:40 +0000 (16:23 +0000)]
Try to fix configure/make build.
llvm-svn: 232823
Simon Pilgrim [Fri, 20 Mar 2015 16:08:17 +0000 (16:08 +0000)]
Stripped trailing whitespace. NFC.
llvm-svn: 232822
Eric Christopher [Fri, 20 Mar 2015 16:03:42 +0000 (16:03 +0000)]
Rewrite StackMap location handling to pre-compute the dwarf register
numbers before emission.
This removes a dependency on being able to access TRI at the module
level and is similar to the DwarfExpression handling. I've modified
the debug support into print/dump routines that'll do the same dumping
but is now callable anywhere and if TRI isn't available will go ahead
and just print out raw register numbers.
llvm-svn: 232821
Eric Christopher [Fri, 20 Mar 2015 16:03:39 +0000 (16:03 +0000)]
At the beginning of doFinalization set the MachineFunction to
nullptr so that users get an earlier dereferencing error and
so that we can use it to conditionalize access to MachineFunction
specific data.
llvm-svn: 232820
Chad Rosier [Fri, 20 Mar 2015 15:45:14 +0000 (15:45 +0000)]
Typo.
llvm-svn: 232819
Tom Stellard [Fri, 20 Mar 2015 15:14:23 +0000 (15:14 +0000)]
R600/SI: Refactor VOP2 instruction defs
llvm-svn: 232817
Tom Stellard [Fri, 20 Mar 2015 15:14:21 +0000 (15:14 +0000)]
R600/SI: Refactor VOP1 instruction defs
llvm-svn: 232816
Pavel Labath [Fri, 20 Mar 2015 14:45:13 +0000 (14:45 +0000)]
Add missing cases to NativeProcessLinux LogThreadStopInfo
Test Plan: No tests, this is just a debug logging function.
Reviewers: tberghammer
Subscribers: lldb-commits
Differential Revision: http://reviews.llvm.org/D8453
llvm-svn: 232815
Rafael Espindola [Fri, 20 Mar 2015 14:33:25 +0000 (14:33 +0000)]
Reduce indentation after return. NFC.
llvm-svn: 232814
Rafael Espindola [Fri, 20 Mar 2015 14:23:46 +0000 (14:23 +0000)]
Use early returns. NFC.
llvm-svn: 232813
Alexander Potapenko [Fri, 20 Mar 2015 14:11:05 +0000 (14:11 +0000)]
[ASan] fix litling warnings for coverage-order-pcs.cc
llvm-svn: 232812
Rafael Espindola [Fri, 20 Mar 2015 13:50:15 +0000 (13:50 +0000)]
Fold a llvm_unreachable into an assert. NFC.
llvm-svn: 232811
Rafael Espindola [Fri, 20 Mar 2015 13:47:40 +0000 (13:47 +0000)]
clang-format a function. NFC.
llvm-svn: 232810
Alexander Potapenko [Fri, 20 Mar 2015 13:42:11 +0000 (13:42 +0000)]
[ASan] Move a couple of Posix-specific tests to Posix/
Add a comment about potential breakage of coverage-maybe-open-file.cc on Win
llvm-svn: 232809
Alexander Potapenko [Fri, 20 Mar 2015 13:31:03 +0000 (13:31 +0000)]
[ASan] Move the coverage tests that work on Darwin to common testcase dir.
llvm-svn: 232808
Simon Atanasyan [Fri, 20 Mar 2015 11:28:22 +0000 (11:28 +0000)]
[Mips] Create special PLT entry in case of MIPS R6 ABI
llvm-svn: 232806
Pavel Labath [Fri, 20 Mar 2015 11:24:36 +0000 (11:24 +0000)]
Fix ninja check-lldb
Ninja apparently has issues with commands writing nul characters '\0' to stdout. When it
encounters a nul character, the rest of the output is skipped (I will file a bug with ninja about
that). This breaks the linux buildbot since it parses the ninja check-lldb output to get a list
of failures.
Recently, we have started outputting nul characters in lldb-server tests. This is probably
a bug in itself, but I am not addressing that now. This is just a workaround commit, which
prevents the nul characters from appearing in the output, and gets the buildbot operational again.
llvm-svn: 232805
Daniel Jasper [Fri, 20 Mar 2015 10:00:37 +0000 (10:00 +0000)]
[MBP] Don't outline short optional branches
With the option -outline-optional-branches, LLVM will place optional
branches out of line (more details on r231230).
With this patch, this is not done for short optional branches. A short
optional branch is a branch containing a single block with an
instruction count below a certain threshold (defaulting to 3). Still
everything is guarded under -outline-optional-branches).
Outlining a short branch can't significantly improve code locality. It
can however decrease performance because of the additional jmp and in
cases where the optional branch is hot. This fixes a compile time
regression I have observed in a benchmark.
Review: http://reviews.llvm.org/D8108
llvm-svn: 232802
Pavel Labath [Fri, 20 Mar 2015 09:43:20 +0000 (09:43 +0000)]
Support for truncate/append on log files
Summary:
Presently, if a log file already exists, lldb simply starts overwriting bits of it, without
truncating or anything. This patch makes it use eFileOptionFileTruncate by default. It also adds
an --append option, which will append to the file without truncating. A test is included.
Reviewers: clayborg
Subscribers: lldb-commits
Differential Revision: http://reviews.llvm.org/D8450
llvm-svn: 232801
Alexey Bataev [Fri, 20 Mar 2015 07:21:46 +0000 (07:21 +0000)]
[MSVC] Explicit specializations can be declared in any namespace (fix for llvm.org/PR13738)
MS compiler emits no errors in case of explicit specializations outside declaration enclosing namespaces, even when language extensions are disabled.
The patch is to suppress errors and emit extension warnings if explicit specializations are not declared in the corresponding namespaces.
This fixes PR13738.
Patch by Alexey Frolov.
Differential Revision: http://reviews.llvm.org/D8283
llvm-svn: 232800
Justin Bogner [Fri, 20 Mar 2015 06:34:38 +0000 (06:34 +0000)]
InstrProf: Make profile variables private to reduce binary size overhead
When we instrument a program for profiling, we copy the linkage of an
instrumented function so that our datastructures merge in the same way
as the function. This avoids redundant copies for things like
linkonce, but ends up emitting names we never need to reference for
normal and internal symbols. Promoting internal and external linkage
to private for these variables reduces the size overhead of profiling
drastically.
llvm-svn: 232799
Craig Topper [Fri, 20 Mar 2015 05:09:06 +0000 (05:09 +0000)]
[Tablegen] Attempt to add support for patterns containing nodes with multiple results.
This is needed for AVX512 masked scatter/gather support.
The R600 change is necessary to remove a hack that was working around the lack of multiple results.
llvm-svn: 232798
Tom Stellard [Fri, 20 Mar 2015 03:12:42 +0000 (03:12 +0000)]
R600/SI: Add missing CHECK-LABEL lines to a test
llvm-svn: 232797
Nick Lewycky [Fri, 20 Mar 2015 02:52:23 +0000 (02:52 +0000)]
Fix comment from r232794. NFC
llvm-svn: 232796
Alexei Starovoitov [Fri, 20 Mar 2015 02:35:29 +0000 (02:35 +0000)]
[bpf] fix build
fix BPF backend build broken by r232699
llvm-svn: 232795
Nick Lewycky [Fri, 20 Mar 2015 02:25:00 +0000 (02:25 +0000)]
When simplifying a SCEV truncate by distributing, consider it a simplification to replace a cast, even if we end up with a trunc around the term. Fixes PR22960!
llvm-svn: 232794
Richard Smith [Fri, 20 Mar 2015 02:17:21 +0000 (02:17 +0000)]
[modules] Remove some redundant work when building a lookup table for a DeclContext.
When we need to build the lookup table for a DeclContext, we used to pull in
all lexical declarations for the context; instead, just build a lookup table
for the local lexical declarations. We previously didn't guarantee that the
imported declarations would be in the returned map, but in some cases we'd
happen to put them all in there regardless. Now we're even lazier about this.
This unnecessary work was papering over some other bugs:
- LookupVisibleDecls would use the DC for name lookups in the TU in C, and
this was not guaranteed to find all imported names (generally, the DC for
the TU in C is not a reliable place to perform lookups). We now use an
identifier-based lookup mechanism for this.
- We didn't actually load in the list of eagerly-deserialized declarations
when importing a module (so external definitions in a module wouldn't be
emitted by users of those modules unless they happened to be deserialized
by the user of the module).
llvm-svn: 232793
Duncan P. N. Exon Smith [Fri, 20 Mar 2015 00:56:55 +0000 (00:56 +0000)]
SampleProfile: Check for missing debug locations
Don't use `DebugLoc` accessors if we're pointing at null, which will be
a problem after a WIP patch to make the `DIDescriptor` accessors more
strict. Caught by Frontend/profile-sample-use-loc-tracking.c (in
clang).
llvm-svn: 232792
Duncan P. N. Exon Smith [Fri, 20 Mar 2015 00:53:40 +0000 (00:53 +0000)]
DebugInfo: Check for null before using DIType
A WIP patch to turn on stricter `DIDescriptor` accessor checks fires
here; it's obvious from the code that `T` can be null, so add an
explicit check. Caught by dozens of current testcases.
llvm-svn: 232791
Duncan P. N. Exon Smith [Fri, 20 Mar 2015 00:48:23 +0000 (00:48 +0000)]
Verifier: Remove the separate DebugInfoVerifier class
Remove the separate `DebugInfoVerifier` class, as a partial step toward
better integrating debug info verification with the `Verifier`.
Right now, verification of debug info is kind of a mess.
- There are `DIDescriptor::Verify()` checks live in `DebugInfo.cpp`.
These return `bool`, and there's no way to see (except by opening a
debugger) why they fail.
- We rely on `DebugInfoFinder` to traverse the debug info graph and
dig up nodes. However, the regular `Verifier` visits many of these
nodes when it calls into debug info intrinsic operands. Visiting
twice and running different checks is kind of absurd.
- Moreover, `DebugInfoFinder` asserts on failed type resolution -- the
verifier should never assert!
By integrating the two verifiers, I'm aiming at solving these problems
(work to be done, obviously). Verification can be localized to the
`Verifier`; we can use a naive `MDNode` operand traversal to find all
the nodes; we can verify type references instead of asserting on
failure.
There are `assert()`s sprinkled throughout the optimizer and dwarf
backend on `DIDescriptor::Verify()` checks. This is a hangover from
when the debug info verifier was off, so I plan to remove them as I go
(once I confirm that the checks are done at verification time).
Note: to keep the behaviour of only running the debug info verifier when
-verify succeeds, I've added an `EverBroken` flag. Once the
`DebugInfoFinder` assertions are gone and the two traversals have been
merged, I expect to be able to remove this.
llvm-svn: 232790
Hans Wennborg [Fri, 20 Mar 2015 00:41:03 +0000 (00:41 +0000)]
Rewrite SelectionDAGBuilder::Clusterify to run in linear time. NFC.
It was previously repeatedly erasing elements from the middle of a vector,
causing O(n^2) worst-case run-time.
llvm-svn: 232789
Reid Kleckner [Fri, 20 Mar 2015 00:31:07 +0000 (00:31 +0000)]
C++14: Disable sized deallocation by default due to ABI breakage
There are no widely deployed standard libraries providing sized
deallocation functions, so we have to punt and ask the user if they want
us to use sized deallocation. In the future, when such libraries are
deployed, we can teach the driver to detect them and enable this
feature.
N3536 claimed that a weak thunk from sized to unsized deallocation could
be emitted to avoid breaking backwards compatibility with standard
libraries not providing sized deallocation. However, this approach and
other variations don't work in practice.
With the weak function approach, the thunk has to have default
visibility in order to ensure that it is overridden by other DSOs
providing sized deallocation. Weak, default visibility symbols are
particularly expensive on MachO, so John McCall was considering
disabling this feature by default on Darwin. It also changes behavior
ELF linking behavior, causing certain otherwise unreferenced object
files from an archive to be pulled into the link.
Our second approach was to use an extern_weak function declaration and
do an inline conditional branch at the deletion call site. This doesn't
work because extern_weak only works on MachO if you have some archive
providing the default value of the extern_weak symbol. Arranging to
provide such an archive has the same challenges as providing the symbol
in the standard library. Not to mention that extern_weak doesn't really
work on COFF.
Reviewers: rsmith, rjmccall
Differential Revision: http://reviews.llvm.org/D8467
llvm-svn: 232788
Kostya Serebryany [Fri, 20 Mar 2015 00:06:52 +0000 (00:06 +0000)]
Allow -fsanitize-coverage with -fsanitize=dataflow
Summary: Allow -fsanitize-coverage with -fsanitize=dataflow
Test Plan: check-clang
Reviewers: pcc
Reviewed By: pcc
Subscribers: cfe-commits
Differential Revision: http://reviews.llvm.org/D8476
llvm-svn: 232787
David Majnemer [Fri, 20 Mar 2015 00:02:27 +0000 (00:02 +0000)]
Don't crash-on-valid when an inline function is friend of class template
We assumed that the most recent declaration of an inline function would
also be inline. However, a more recent declaration can come from a
friend declaration in a class template that is instantiated at the
definition of the function.
llvm-svn: 232786
Peter Collingbourne [Thu, 19 Mar 2015 23:55:38 +0000 (23:55 +0000)]
test: Make a start on a test suite for libLTO.
This works in a similar way to the gold plugin tests. We search for a compatible
linker on $PATH and use it to run tests against our just-built libLTO. To start
with, test the just added opt level functionality.
Differential Revision: http://reviews.llvm.org/D8472
llvm-svn: 232785
Chaoren Lin [Thu, 19 Mar 2015 23:28:10 +0000 (23:28 +0000)]
Report watchpoint hits during single stepping.
Summary:
Reorganized NativeProcessLinux::MonitorSIGTRAP to check for watchpoint hits on
TRAP_TRACE.
Added test for stepping over watchpoints.
https://llvm.org/bugs/show_bug.cgi?id=22814
Reviewers: ovyalov, tberghammer, vharron, clayborg
Subscribers: jingham, labath, lldb-commits
Differential Revision: http://reviews.llvm.org/D8404
llvm-svn: 232784
Eric Christopher [Thu, 19 Mar 2015 23:27:42 +0000 (23:27 +0000)]
Use the cached subtarget on the MachineFunction when the AsmPrinter
will have a MachineFunction, i.e. in places other than the module
level doInitialize/doFinalize.
llvm-svn: 232783
Eric Christopher [Thu, 19 Mar 2015 23:06:21 +0000 (23:06 +0000)]
Use the cached subtarget off of the machine function.
llvm-svn: 232782
Sanjay Patel [Thu, 19 Mar 2015 23:04:25 +0000 (23:04 +0000)]
move insert, extract, concat helper functions closer to related helper functions; NFCI
llvm-svn: 232781
Owen Anderson [Thu, 19 Mar 2015 22:48:57 +0000 (22:48 +0000)]
Fix a nasty bug in DAGCombine of STORE nodes.
This is very related to the bug fixed in r174431. The problem is that
SelectionDAG does not include alignment in the uniquing of loads and
stores. When an otherwise no-op DAGCombine would increase the alignment
of a load or store, the original node would be returned (with the
alignment increased), which would cause the node not to be processed by
any further DAGCombines.
I don't have a direct testcase for this that manifests on an in-tree
target, but I did see some noise in the tests for other targets and have
updated them for it.
llvm-svn: 232780
Duncan P. N. Exon Smith [Thu, 19 Mar 2015 22:43:38 +0000 (22:43 +0000)]
Clang follow-up to LLVM r232772
-verify-di is dead! Long live -verify!
llvm-svn: 232779
Chandler Carruth [Thu, 19 Mar 2015 22:39:51 +0000 (22:39 +0000)]
[Modules] Implement __builtin_isinf_sign in Clang.
Somehow, we never managed to implement this fully. We could constant
fold it like crazy, including constant folding complex arguments, etc.
But if you actually needed to generate code for it, error.
I've implemented it using the somewhat obvious lowering. Happy for
suggestions on a more clever way to lower this.
Now, what you might ask does this have to do with modules? Fun story. So
it turns out that libstdc++ actually uses __builtin_isinf_sign to
implement std::isinf when in C++98 mode, but only inside of a template.
So if we're lucky, and we never instantiate that, everything is good.
But once we try to instantiate that template function, we need this
builtin. All of my customers at least are using C++11 and so they never
hit this code path.
But what does that have to do with modules? Fun story. So it turns out
that with modules we actually observe a bunch of bugs in libstdc++ where
their <cmath> header clobbers things exposed by <math.h>. To fix these,
we have to provide global function definitions to replace the macros
that C99 would have used. And it turns out that ::isinf needs to be
implemented using the exact semantics used by the C++98 variant of
std::isinf. And so I started to fix this bug in libstdc++ and ceased to
be able to compile libstdc++ with Clang.
The yaks are legion.
llvm-svn: 232778
Eric Christopher [Thu, 19 Mar 2015 22:36:38 +0000 (22:36 +0000)]
Remove unused headers.
llvm-svn: 232777
Eric Christopher [Thu, 19 Mar 2015 22:36:37 +0000 (22:36 +0000)]
Add an MCSubtargetInfo variable to the TargetMachine.
This enables us to remove calls to the subtarget from the TargetMachine
and with a small hack for backends that require global subtarget
information for module level code generation, e.g. mips abi flags, as
mentioned in a fixme in the code.
llvm-svn: 232776
Eric Christopher [Thu, 19 Mar 2015 22:36:32 +0000 (22:36 +0000)]
Add a TargetMachine local MCRegisterInfo and MCInstrInfo so that
they can be used without a subtarget in constructing subtarget
independent passes.
llvm-svn: 232775
Reid Kleckner [Thu, 19 Mar 2015 22:31:02 +0000 (22:31 +0000)]
WinEH: Make llvm.eh.actions emission match the EH docs
This switches the sense of the i32 values and updates the test cases.
We can also use CHECK-SAME to clean up some tests, and reduce the visual
noise from bitcasts.
llvm-svn: 232774
Sanjay Patel [Thu, 19 Mar 2015 22:29:40 +0000 (22:29 +0000)]
[X86, AVX] use blends instead of insert128 with index 0
Another case of x86-specific shuffle strength reduction:
avoid generating insert*128 instructions with index 0 because
they are slower than their non-lane-changing blend equivalents.
Shuffle lowering already catches most of these cases, but
the zero vector case and some other paths such as in the
modified test in vector-shuffle-256-v32.ll were getting
through.
Differential Revision: http://reviews.llvm.org/D8366
llvm-svn: 232773
Duncan P. N. Exon Smith [Thu, 19 Mar 2015 22:24:17 +0000 (22:24 +0000)]
Verifier: Remove the separate -verify-di pass
Remove `DebugInfoVerifierLegacyPass` and the `-verify-di` pass.
Instead, call into the `DebugInfoVerifier` from inside
`VerifierLegacyPass::finalizeModule()`. This better matches the logic
in `verifyModule()` (used by the new PassManager), avoids requiring two
separate passes to verify the IR, and makes the API for "add a pass to
verify the IR" simple.
Note: the `-verify-debug-info` flag still works (for now, at least;
eventually it might make sense to just remove it).
llvm-svn: 232772
Peter Collingbourne [Thu, 19 Mar 2015 22:12:08 +0000 (22:12 +0000)]
Fix build failure.
llvm-svn: 232771
Peter Collingbourne [Thu, 19 Mar 2015 22:02:10 +0000 (22:02 +0000)]
LowerBitSets: Avoid reusing byte set addresses.
Each use of the byte array uses a different alias. This makes the
backend less likely to reuse previously computed byte array addresses,
improving the security of the CFI mechanism based on this pass.
Differential Revision: http://reviews.llvm.org/D8455
llvm-svn: 232770
Peter Collingbourne [Thu, 19 Mar 2015 22:01:00 +0000 (22:01 +0000)]
libLTO, llvm-lto, gold: Introduce flag for controlling optimization level.
This change also introduces a link-time optimization level of 1. This
optimization level runs only the globaldce pass as well as cleanup passes for
passes that run at -O0, specifically simplifycfg which cleans up lowerbitsets.
http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-
20150316/266951.html
llvm-svn: 232769
Zachary Turner [Thu, 19 Mar 2015 22:00:21 +0000 (22:00 +0000)]
Move LLDB initialization/shutdown to Initialization.
This creates a new top-level folder called Initialization which
is intended to hold code specific to LLDB system initialization.
Currently this holds the Initialize() and Terminate() functions,
as well as the fatal error handler.
This provides a means to break the massive dependency cycle which
is caused by the fact that Debugger depends on Initialize and
Terminate which then depends on the entire LLDB project. With
this structure, it will be possible for applications to invoke
lldb_private::Initialize() directly, and have that invoke
Debugger::Initialize.
llvm-svn: 232768
Chaoren Lin [Thu, 19 Mar 2015 22:00:13 +0000 (22:00 +0000)]
Fix SBFrame::FindValue for when only global variables exist.
Summary:
sc.block->AppendVariables(...) returns 0 if there are no arguments or local
variables, but we still need to check for global variables.
Test Plan:
```
$ cat test.cpp
int i;
int main() {
}
$ lldb test -o 'b main' -o r
(lldb) script
>>> print lldb.frame.FindValue('i', lldb.eValueTypeVariableGlobal)
(int) i = 0 # as opposed to "No value"
```
Reviewers: jingham, ovyalov, vharron, clayborg
Reviewed By: clayborg
Subscribers: lldb-commits
Differential Revision: http://reviews.llvm.org/D8464
llvm-svn: 232767
David Majnemer [Thu, 19 Mar 2015 21:54:30 +0000 (21:54 +0000)]
MS ABI: Implement the MSVC 2015 scheme for scope disambiguation
consider C++ that looks like:
inline int &f(bool b) {
if (b) {
static int i;
return i;
}
static int i;
return i;
}
Both 'i' variables must have distinct (and stable) names for linkage
purposes. The MSVC 2013 ABI would number the variables using a count of
the number of scopes that have been created. However, the final 'i'
returns to a scope that has already been created leading to a mangling
collision.
MSVC 2015 fixes this by giving the second 'i' the name it would have if
it were declared before the 'if'. However, this results in ABI breakage
because the mangled name, in cases where there was no ambiguity, would
now be different.
We implement the new behavior and only enable it if we are targeting the
MSVC 2015 ABI, otherwise the old behavior will be used.
This fixes PR18131.
llvm-svn: 232766
Duncan P. N. Exon Smith [Thu, 19 Mar 2015 21:37:17 +0000 (21:37 +0000)]
PassManagerBuilder: Remove effectively dead 'StripDebug' option
`StripDebug` was only used by tools/opt/opt.cpp in
`AddStandardLinkPasses()`, but opt.cpp adds the same pass based on its
command-line flag before it calls `AddStandardLinkPasses()`. Stripping
debug info twice isn't very useful.
llvm-svn: 232765
Eric Fiselier [Thu, 19 Mar 2015 21:11:02 +0000 (21:11 +0000)]
Create macro to allow testing of is_convertible without the compiler builtin.
Summary: This patch also fixes one test case that failed in the library version of is_convertible.
Reviewers: mclow.lists, EricWF
Reviewed By: EricWF
Subscribers: cfe-commits
Differential Revision: http://reviews.llvm.org/D8456
llvm-svn: 232764
Kostya Serebryany [Thu, 19 Mar 2015 21:01:27 +0000 (21:01 +0000)]
[sanitizer] fix 'sancov.py merge' and add a test for it
llvm-svn: 232763
Eric Fiselier [Thu, 19 Mar 2015 20:59:45 +0000 (20:59 +0000)]
[libcxx] Unify LIBCXX_<ABI-Name>_INCLUDE_PATHS to be LIBCXX_CXX_ABI_INCLUDE_PATHS
Summary:
Clean up all the different possible CMake options for specifying the ABI include paths into one CMake option named `LIBCXX_CXX_ABI_INCLUDE_PATHS`.
The documentation has been updated to reflect this change.
For the next week I have added explicit errors if any of the old flags is used. These errors inform users of the change and the new option to use.
Before committing the change I will announce this change on cfe-dev.
Reviewers: danalbert, mclow.lists
Reviewed By: danalbert, mclow.lists
Subscribers: jroelofs, cbergstrom, cfe-commits
Differential Revision: http://reviews.llvm.org/D5039
llvm-svn: 232762
Simon Atanasyan [Thu, 19 Mar 2015 20:56:34 +0000 (20:56 +0000)]
[Mips] Add comments to the relocation calculation functions
No functional changes.
llvm-svn: 232761
Kaelyn Takata [Thu, 19 Mar 2015 20:56:07 +0000 (20:56 +0000)]
Correct typos in C11 generic-selection expressions.
llvm-svn: 232760
Hans Wennborg [Thu, 19 Mar 2015 20:41:48 +0000 (20:41 +0000)]
Switch lowering: extract NextBlock function. NFC.
llvm-svn: 232759
Krzysztof Parzyszek [Thu, 19 Mar 2015 20:22:17 +0000 (20:22 +0000)]
Unxfail test/CodeGen/Generic/vector.ll now passing on Hexagon
llvm-svn: 232758
Simon Atanasyan [Thu, 19 Mar 2015 19:59:17 +0000 (19:59 +0000)]
[Mips] Implement R_MIPS_PCHI16 / R_MIPS_PCLO16 relocations handling
llvm-svn: 232757
Simon Atanasyan [Thu, 19 Mar 2015 19:59:06 +0000 (19:59 +0000)]
[Mips] Implement R_MIPS_PC18_S3 relocation handling
llvm-svn: 232756
Simon Atanasyan [Thu, 19 Mar 2015 19:58:58 +0000 (19:58 +0000)]
[Mips] Implement R_MIPS_PC19_S2 / R_MIPS_PC26_S2 relocations handling
llvm-svn: 232755
Kostya Serebryany [Thu, 19 Mar 2015 19:52:30 +0000 (19:52 +0000)]
[sanitizer] trying to fix sancov.py with 32-bit python
llvm-svn: 232754
Benjamin Kramer [Thu, 19 Mar 2015 19:44:37 +0000 (19:44 +0000)]
Remove unused diagnostic.
Unused since r231851.
llvm-svn: 232751
Nico Weber [Thu, 19 Mar 2015 19:18:22 +0000 (19:18 +0000)]
Add -Wpartial-availability.
This warns when using decls that are not available on all deployment targets.
For example, a call to
- (void)ppartialMethod __attribute__((availability(macosx,introduced=10.8)));
will warn if -mmacosx-version-min is set to less than 10.8.
To silence the warning, one has to explicitly redeclare the method like so:
@interface Whatever(MountainLionAPI)
- (void)ppartialMethod;
@end
This way, one cannot accidentally call a function that isn't available
everywhere. Having to add the redeclaration will hopefully remind the user
to add an explicit respondsToSelector: call as well.
Some projects build against old SDKs to get this effect, but building against
old SDKs suppresses some bug fixes -- see http://crbug.com/463171 for examples.
The hope is that SDK headers are annotated well enough with availability
attributes that new SDK + this warning offers the same amount of protection
as using an old SDK.
llvm-svn: 232750
Artem Belevich [Thu, 19 Mar 2015 18:58:18 +0000 (18:58 +0000)]
Remove .CUDAIsDevice flags from CodeGenOpts as it's already
available in LangOpts.
Differential Revision: http://reviews.llvm.org/D8385
llvm-svn: 232749