Duncan P. N. Exon Smith [Mon, 27 Apr 2015 23:38:54 +0000 (23:38 +0000)]
LTO: Add API to choose whether to embed uselists
Reverse libLTO's default behaviour for preserving use-list order in
bitcode, and add API for controlling it. The default setting is now
`false` (don't preserve them), which is consistent with `clang`'s
default behaviour.
Users of libLTO should call `lto_codegen_should_embed_uselists(CG,true)`
prior to calling `lto_codegen_write_merged_modules()` whenever the
output file isn't part of the production workflow in order to reproduce
results with subsequent calls to `llc`.
(I haven't added tests since `llvm-lto` (the test tool for LTO) doesn't
support bitcode output, and even if it did: there isn't actually a good
way to test whether a tool has passed the flag. If the order is already
"natural" (if the order will already round-trip) then no use-list
directives are emitted at all. At some point I'll circle back to add
tests to `llvm-as` (etc.) that they actually respect the flag, at which
point I can somehow add a test here as well.)
llvm-svn: 235943
Hans Wennborg [Mon, 27 Apr 2015 23:35:22 +0000 (23:35 +0000)]
Switch lowering: Take branch weight into account when ordering for fall-through
Previously, the code would try to put a fall-through case last,
even if that meant moving a case with much higher branch weight
further down the chain.
Ordering by branch weight is most important, putting a fall-through
block last is secondary.
llvm-svn: 235942
Richard Smith [Mon, 27 Apr 2015 23:21:38 +0000 (23:21 +0000)]
[modules] Incrementally compute the list of overridden module macros based on
the active module macros at the point of definition, rather than reconstructing
it from the macro history. No functionality change intended.
llvm-svn: 235941
Chaoren Lin [Mon, 27 Apr 2015 23:20:30 +0000 (23:20 +0000)]
Add an unnamed pipe fail-safe to launching lldb-gdbserver.
Summary:
Currently, launching lldb-gdbserver from platform on Android requires root for
mkfifo() and an explicit TMPDIR variable. This should remove both requirements.
Test Plan: Successfully launched lldb-gdbserver on a non-rooted Android device.
Reviewers: tberghammer, vharron, clayborg
Reviewed By: clayborg
Subscribers: tberghammer, lldb-commits
Differential Revision: http://reviews.llvm.org/D9307
llvm-svn: 235940
Duncan P. N. Exon Smith [Mon, 27 Apr 2015 23:19:26 +0000 (23:19 +0000)]
LTO: Simplify code generator initialization
Simplify `LTOCodeGenerator` initialization by initializing simple fields
at their definition.
llvm-svn: 235939
Reid Kleckner [Mon, 27 Apr 2015 23:14:24 +0000 (23:14 +0000)]
Remove stale FIXMEs from test case
llvm-svn: 235937
Eric Christopher [Mon, 27 Apr 2015 23:11:34 +0000 (23:11 +0000)]
Always add the target-cpu and target-features sets if they're non-null.
This makes sure that the front end is specific about what they're expecting
the backend to produce. Update a FIXME with the idea that the target-features
could be more precise using backend knowledge.
llvm-svn: 235936
Zachary Turner [Mon, 27 Apr 2015 22:58:57 +0000 (22:58 +0000)]
[Windows] Add a RegisterContextWindows_x64.
With this patch, LLDB can debug x64 executables on Windows with
the same level of functionality as for x86 executables.
llvm-svn: 235935
Alexey Samsonov [Mon, 27 Apr 2015 22:50:06 +0000 (22:50 +0000)]
[docs] Fix the link to SanitizerCoverage docs.
llvm-svn: 235934
Rafael Espindola [Mon, 27 Apr 2015 22:48:51 +0000 (22:48 +0000)]
Use MemoryBufferRef instead of MemoryBuffer&. NFC.
This just reduces the noise from another patch.
llvm-svn: 235933
Daniel Jasper [Mon, 27 Apr 2015 22:42:20 +0000 (22:42 +0000)]
clang-tidy: [readability-else-after-return] Fix false positive. This
might be a little too strict now, but better be too strict than do the
wrong thing.
llvm-svn: 235932
Aaron Ballman [Mon, 27 Apr 2015 22:31:12 +0000 (22:31 +0000)]
Check whether the operand to a noexcept expression is valid or not. Fixes PR15842.
llvm-svn: 235931
Sanjay Patel [Mon, 27 Apr 2015 22:23:17 +0000 (22:23 +0000)]
remove obsolete pattern matches for scalar SSE ops
The blendi pattern should always replace the insertps pattern after:
http://reviews.llvm.org/rL232850
http://reviews.llvm.org/rL235124
llvm-svn: 235930
Alexey Samsonov [Mon, 27 Apr 2015 22:09:27 +0000 (22:09 +0000)]
[UBSan] Reenable ASan+UBSan tests on Darwin now that PR21112 is fixed.
llvm-svn: 235929
Alexey Samsonov [Mon, 27 Apr 2015 22:08:09 +0000 (22:08 +0000)]
Introduce tsan_cxx and msan_cxx libraries (compiler-rt part).
For now tsan_cxx and msan_cxx contain only operator new/delete
replacements. In the future, when we add support for running UBSan+TSan
and UBSan+MSan, they will also contain bits ubsan_cxx runtime.
llvm-svn: 235928
Alexey Samsonov [Mon, 27 Apr 2015 22:08:08 +0000 (22:08 +0000)]
[TSan] Prepare TSan tests for splitting tsan_cxx library.
llvm-svn: 235927
Alexey Samsonov [Mon, 27 Apr 2015 22:08:04 +0000 (22:08 +0000)]
[MSan] Prepare for splitting msan_new_delete.cc into a separate library. NFC.
llvm-svn: 235926
Duncan P. N. Exon Smith [Mon, 27 Apr 2015 22:08:01 +0000 (22:08 +0000)]
LTO: Correct some doxygen comments about API availability
These look like copy/paste errors, and shouldn't have the "prior to"
qualifier. Each API was introduced at the given values of
`LTO_API_VERSION`. The "prior to" in other doxygen comments is because
I couldn't easily differentiate between versions 1 and 2 when I added
these comments.
llvm-svn: 235925
Alexey Samsonov [Mon, 27 Apr 2015 22:07:50 +0000 (22:07 +0000)]
Introduce tsan_cxx and msan_cxx libraries (Clang part).
For now tsan_cxx and msan_cxx contain only operator new/delete
replacements. In the future, when we add support for running UBSan+TSan
and UBSan+MSan, they will also contain bits ubsan_cxx runtime.
llvm-svn: 235924
Rafael Espindola [Mon, 27 Apr 2015 22:04:24 +0000 (22:04 +0000)]
Use CIE version 1 for .eh_frame.
According to
http://www.linuxbase.org/betaspecs/lsb/LSB-Core-generic/LSB-Core-generic/ehframechpt.html
we should always use 1.
llvm-svn: 235923
Ahmed Bougacha [Mon, 27 Apr 2015 21:43:12 +0000 (21:43 +0000)]
[AArch64] Also combine vector selects fed by non-i1 SETCCs.
After legalization, scalar SETCC has an i32 result type on AArch64.
The i1 requirement seems too conservative, replace it with an assert.
This also means that we now can run after legalization. That should also
be fine, since the ops legalizer runs again after each combine, and
all types created all have the same sizes as the (legal) inputs.
Exposed by r235917; while there, robustize its tests (bsl also uses the
register it defines).
llvm-svn: 235922
Richard Smith [Mon, 27 Apr 2015 21:27:54 +0000 (21:27 +0000)]
PR23334: Perform semantic checking of lambda capture initialization in the right context.
Previously we'd try to perform checks on the captures from the middle of
parsing the lambda's body, at the point where we detected that a variable
needed to be captured. This was wrong in a number of subtle ways. In
PR23334, we couldn't correctly handle the list of potential odr-uses
resulting from the capture, and our attempt to recover from that resulted
in a use-after-free.
We now defer building the initialization expression until we leave the lambda
body and return to the enclosing context, where the initialization does the
right thing. This patch only covers lambda-expressions, but we should apply
the same change to blocks and captured statements too.
llvm-svn: 235921
Pete Cooper [Mon, 27 Apr 2015 21:23:12 +0000 (21:23 +0000)]
Add missing library dependency in libPDB.
PDB uses COFFObjectFile::getPE32Header which lives in libObject.
Make sure that LLVMBuild.txt reflects this dependency.
llvm-svn: 235920
Artem Belevich [Mon, 27 Apr 2015 21:11:08 +0000 (21:11 +0000)]
Revert "PR21000: pass -I options to assembler" as the test was failing on hexagon.
llvm-svn: 235919
Rafael Espindola [Mon, 27 Apr 2015 21:08:47 +0000 (21:08 +0000)]
Allow building the gold plugin even if the gold binary is not found.
The gold binary is not required to build the plugin. All that is
needed is for LLVM_BINUTILS_INCDIR to point to the directory
containing plugin-api.h.
llvm-svn: 235918
Ahmed Bougacha [Mon, 27 Apr 2015 21:01:20 +0000 (21:01 +0000)]
[AArch64] Don't assert when combining (v3f32 select (setcc f64)).
When the setcc has f64 operands, we can't build a vector setcc mask
to feed a vselect, because f64 doesn't divide v3f32 evenly.
Just bail out when that happens.
llvm-svn: 235917
Chaoren Lin [Mon, 27 Apr 2015 20:57:24 +0000 (20:57 +0000)]
XFail flakey test.
llvm-svn: 235916
Artem Belevich [Mon, 27 Apr 2015 20:51:44 +0000 (20:51 +0000)]
PR21000: pass -I options to assembler
Pass -I options to assembly so it can find files included with
.include.
Differential Revision: http://reviews.llvm.org/D7472
llvm-svn: 235915
Chris Bieneman [Mon, 27 Apr 2015 20:45:35 +0000 (20:45 +0000)]
Fixes a hang that can occur if a signal comes in during malloc calls.
We need to dereference the signals mutex during handler registration so that we force its construction. This is to prevent the first use being during handling an actual signal because you can't safely allocate memory in a signal handler.
llvm-svn: 235914
Bill Schmidt [Mon, 27 Apr 2015 20:22:35 +0000 (20:22 +0000)]
Silence unused variable errors for no-asserts builds
llvm-svn: 235913
Hans Wennborg [Mon, 27 Apr 2015 20:21:17 +0000 (20:21 +0000)]
Switch lowering: order bit tests by branch weight.
llvm-svn: 235912
David Blaikie [Mon, 27 Apr 2015 19:58:56 +0000 (19:58 +0000)]
[opaque pointer type] encode the pointee type of global variables
Use a few extra bits in the const field (after widening it from a fixed
single bit) to stash the address space which is no longer provided by
the type (and an extra bit in there to specify that we're using that new
encoding).
llvm-svn: 235911
Bill Schmidt [Mon, 27 Apr 2015 19:57:34 +0000 (19:57 +0000)]
[PPC64LE] Remove unnecessary swaps from lane-insensitive vector computations
This patch adds a new SSA MI pass that runs on little-endian PPC64
code with VSX enabled. Loads and stores of 4x32 and 2x64 vectors
without alignment constraints are accomplished for little-endian using
lxvd2x/xxswapd and xxswapd/stxvd2x. The existence of the additional
xxswapd instructions hurts performance in comparison with big-endian
code, but they are necessary in the general case to support correct
semantics.
However, the general case does not apply to most vector code. Many
vector instructions are lane-insensitive; they do not "care" which
lanes the parallel computations are performed within, provided that
the resulting data is stored into the correct locations. Thus this
pass looks for computations that perform only lane-insensitive
operations, and remove the unnecessary swaps from loads and stores in
such computations.
Future improvements will allow computations using certain
lane-sensitive operations to also be optimized in this manner, by
modifying the lane-sensitive operations to account for the permuted
order of the lanes. However, this patch only adds the infrastructure
to permit this; no lane-sensitive operations are optimized at this
time.
This code is heavily exercised by the various vectorizing applications
in the projects/test-suite tree. For the time being, I have only added
one simple test case to demonstrate what the pass is doing. Although
it is quite simple, it provides coverage for much of the code,
including the special case handling of copies and subreg-to-reg
operations feeding the swaps. I plan to add additional tests in the
future as I fill in more of the "special handling" code.
Two existing tests were affected, because they expected the swaps to
be present, but they are now removed.
llvm-svn: 235910
Zachary Turner [Mon, 27 Apr 2015 19:41:40 +0000 (19:41 +0000)]
[llvm-symbolizer] Link DebugInfoPDB for the autoconf build
llvm-svn: 235909
Paul Robinson [Mon, 27 Apr 2015 19:40:04 +0000 (19:40 +0000)]
Simplify depfile quoting test.
With -MG we don't actually need to create the files with funky names.
Also use a more sensible check-prefix for the NMAKE case.
llvm-svn: 235908
Artem Belevich [Mon, 27 Apr 2015 19:37:53 +0000 (19:37 +0000)]
[cuda] Ignore "TLS unsupported by target" errors for host variables during device compilation.
During device-side CUDA compilation clang currently complains about
all TLS variables, regardless of whether they are __host__ or
__device__.
This patch suppresses "TLS unsupported" errors for host variables
during device compilation and for device variables during host
compilation.
Differential Revision: http://reviews.llvm.org/D9269
llvm-svn: 235907
Alexey Samsonov [Mon, 27 Apr 2015 19:33:55 +0000 (19:33 +0000)]
[TSan] Move new/delete interceptors into a separate source file. NFC.
llvm-svn: 235906
Artem Belevich [Mon, 27 Apr 2015 18:52:00 +0000 (18:52 +0000)]
[cuda] treat file scope __asm as __host__ and ignore it during device-side compilation.
Currently clang emits file-scope asm during *both* host and device
compilation modes which is usually a wrong thing to do.
There's no way to attach any attribute to an __asm statement, so
there's no way to differentiate between host-side and device-side
file-scope asm. This patch makes clang to match nvcc behavior and
emit file-scope-asm only during host-side compilation.
Differential Revision: http://reviews.llvm.org/D9270
llvm-svn: 235905
Saleem Abdulrasool [Mon, 27 Apr 2015 18:19:33 +0000 (18:19 +0000)]
libc++abi: enable LLVM unwinder by default for ARM
libc++abi uses EHABI extensions, which are only part of the LLVM unwinder. When
targeting ARM by default, enable the use of the LLVM unwinder. Hopefully this
will fix the ARM native bot
llvm-svn: 235904
Paul Robinson [Mon, 27 Apr 2015 18:14:32 +0000 (18:14 +0000)]
Support generating NMake/Jom-style depfiles.
NMake is a Make-like builder that comes with Microsoft Visual Studio.
Jom (https://wiki.qt.io/Jom) is an NMake-compatible build tool.
Dependency files for NMake/Jom need to use double-quotes to wrap
filespecs containing special characters, instead of the backslash
escapes that GNU Make wants.
Adds the -MV option, which specifies to use double-quotes as needed
instead of backslash escapes when writing the dependency file.
Differential Revision: http://reviews.llvm.org/D9260
llvm-svn: 235903
Sanjay Patel [Mon, 27 Apr 2015 17:45:44 +0000 (17:45 +0000)]
fix 80-cols; NFC
llvm-svn: 235902
Zachary Turner [Mon, 27 Apr 2015 17:22:30 +0000 (17:22 +0000)]
Fix build broken by incorrect class name.
llvm-svn: 235901
Zachary Turner [Mon, 27 Apr 2015 17:19:51 +0000 (17:19 +0000)]
Make llvm-symbolizer work on Windows.
Differential Revision: http://reviews.llvm.org/D9234
Reviewed By: Alexey Samsonov
llvm-svn: 235900
Reid Kleckner [Mon, 27 Apr 2015 17:19:49 +0000 (17:19 +0000)]
[MS ABI] Use 'continue' instead of 'return false' where intended
This was a bug in r218285 that prevented us from seeing subsequent
virtual bases in the class hierarchy, leading to crashes later.
Also add some comments to this function, now that we better understand
what it's trying to do.
Fixes PR21062 and PR21064.
llvm-svn: 235899
Zachary Turner [Mon, 27 Apr 2015 17:19:26 +0000 (17:19 +0000)]
Make an RAII com initializer.
Differential Revision: http://reviews.llvm.org/D9267
Reviewed By: Aaron Ballman, David Majnemer
llvm-svn: 235898
Rui Ueyama [Mon, 27 Apr 2015 17:18:04 +0000 (17:18 +0000)]
Remove trailing whitespace characters.
llvm-svn: 235897
Sanjay Patel [Mon, 27 Apr 2015 17:03:31 +0000 (17:03 +0000)]
fix typos; NFC
llvm-svn: 235896
Rui Ueyama [Mon, 27 Apr 2015 16:54:48 +0000 (16:54 +0000)]
ELF: Simplify LinkerScript detection. NFC.
llvm-svn: 235895
Greg Clayton [Mon, 27 Apr 2015 16:52:08 +0000 (16:52 +0000)]
Make sure files in the Xcode project in source/API are in alphabetic order.
llvm-svn: 235894
Saleem Abdulrasool [Mon, 27 Apr 2015 16:51:52 +0000 (16:51 +0000)]
unwind: remove inclusion of private_typeinfo.h
This include is not currently used. It is intended for type info based
switching, which is part of the EHABI specification. However, the unwinder does
not currently support this functionality. This backwards dependency into
libc++abi is currently causing a buildbot failure, remove it until we have a
better solution.
llvm-svn: 235893
Greg Clayton [Mon, 27 Apr 2015 16:49:57 +0000 (16:49 +0000)]
Make sure versions are valid before we try to use them. Also check for invalid versions[0] by comparing it to UINT32_MAX instead of 0.
llvm-svn: 235892
Toma Tabacu [Mon, 27 Apr 2015 15:21:38 +0000 (15:21 +0000)]
[mips] Correct bytes to bits in 2 comments. NFC.
llvm-svn: 235891
Adhemerval Zanella [Mon, 27 Apr 2015 15:13:17 +0000 (15:13 +0000)]
Add missing snippets from r235880
llvm-svn: 235890
Elena Demikhovsky [Mon, 27 Apr 2015 15:11:19 +0000 (15:11 +0000)]
AVX-512: added calling conventions for i1 vectors.
Fixed bug: https://llvm.org/bugs/show_bug.cgi?id=20724
llvm-svn: 235889
Hafiz Abid Qadeer [Mon, 27 Apr 2015 15:04:42 +0000 (15:04 +0000)]
Improve handling of ctrl-c with MSVC.
Currently hitting Ctrl-C in Windows LLDB-MI just exits MI. But according to test_lldbmi_stopped_when_interrupt() in TestMiSignal.py Ctrl-C should send a SIGINT signal to the inferior.
Patch adds this functionality to Windows so SIGINT is sent on Ctrl-C.
Patch from EwanCrawford. Reviewed in http://reviews.llvm.org/D9248.
llvm-svn: 235887
Brendon Cahoon [Mon, 27 Apr 2015 14:16:43 +0000 (14:16 +0000)]
[Hexagon] Use constant extenders to fix up hardware loops
Use a loop instruction with a constant extender for a hardware
loop instruction that is too far away from the start of the loop.
This is cheaper than changing the SA register value.
Differential Revision: http://reviews.llvm.org/D9262
llvm-svn: 235882
Toma Tabacu [Mon, 27 Apr 2015 14:05:04 +0000 (14:05 +0000)]
[mips] [IAS] Improve warning for using AT with .set noat.
Summary:
Changed the warning message to show the current value of $at, similar to what clang does for typedef's, and renamed warnIfAssemblerTemporary to a more descriptive name.
I also changed the type of variables which store registers from int to unsigned, updated the relevant test and tried to make the related comments clearer.
Reviewers: dsanders
Reviewed By: dsanders
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D8479
llvm-svn: 235881
Adhemerval Zanella [Mon, 27 Apr 2015 13:55:14 +0000 (13:55 +0000)]
ELF/ARM: Ignore R_ARM_V4BX for ARMv4 but allow linking
This patch allow the ARM relocation R_ARM_V4BX to be processed by lld,
although it is not really handled in the static relocation code. The
relocation is in the form:
Relocation section '.rel.text' at offset 0x428 contains 4 entries:
Offset Info Type Sym.Value Sym. Name
00000014 00000028 R_ARM_V4BX
Meaning it does have a direct target, but rather references to an absolute
section *ABS* (in this exemple to the .text segment itself). It makes the
target Atom after file parse to not have a associated pointer and thus
generating a derrefence NULL point in ELFFile<ELFT>::findAtom. Current
approach is just ignore and return nullptr in such cases.
The problem relies that default GCC configuration
for arm-linux-gnueabi{hf} emits the relocation for the asm:
--
.syntax unified
.arm
.p2align 2
.type fn, %function
fn:
ldr r3, .LGOT
ldr r2, .LGOT+4
.LPIC:
add r3, pc, r3
ldr r2, [r3, r2]
cmp r2, #0
bxeq lr
b __start__
.LGOT:
.word _GLOBAL_OFFSET_TABLE_-(.LPIC+8)
.word __start__(GOT)
--
But only with the option -march=armv4 (which is the default GCC configuration).
For arm5 and forward the relocation is not created. This a special relocation
(defined miscellaneous for ARM) that instruct the linker to replace the bx
instruction into a mov. GNU linker has some options related to which substitution
it can create for such cases.
With this patch I can dynamically link an application against a GLIBC
arm-linux-gnueabi system configured with default GCC.
llvm-svn: 235880
Vasileios Kalintiris [Mon, 27 Apr 2015 13:28:05 +0000 (13:28 +0000)]
Reapply "[mips][FastISel] Implement shift ops for Mips fast-isel.""
This reapplies r235194, which was reverted in r235495 because it was causing a
failure in our out-of-tree buildbots for MIPS. With the sign-extension patch
in r235718, this patch doesn't cause any problem any more.
llvm-svn: 235878
Toma Tabacu [Mon, 27 Apr 2015 13:12:59 +0000 (13:12 +0000)]
[mips] [IAS] Rename getATRegNum and setATReg to {g,s}etATRegIndex. NFC.
Reviewers: dsanders
Reviewed By: dsanders
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D8480
llvm-svn: 235877
Elena Demikhovsky [Mon, 27 Apr 2015 12:57:59 +0000 (12:57 +0000)]
AVX-512: Extend/Truncate operations for SKX,
SETCC for bit-vectors
llvm-svn: 235875
Tobias Grosser [Mon, 27 Apr 2015 12:32:24 +0000 (12:32 +0000)]
Extract IslNodeBuilder into its own file
The IslNodeBuilder is a generic class that may be useful in other contexts
as well. Hence, we extract it into its own .h/.cpp file.
llvm-svn: 235873
Tobias Grosser [Mon, 27 Apr 2015 12:17:22 +0000 (12:17 +0000)]
Drop some unused headers
llvm-svn: 235871
Tobias Grosser [Mon, 27 Apr 2015 12:06:32 +0000 (12:06 +0000)]
Fix PTXGenerator after raw_pwrite_stream has been introduced
Without this patch Polly with GPGPU support enabled did not compile any more.
llvm-svn: 235868
Tobias Grosser [Mon, 27 Apr 2015 12:02:36 +0000 (12:02 +0000)]
Fix formatting issues in banner
llvm-svn: 235867
Tobias Grosser [Mon, 27 Apr 2015 12:02:33 +0000 (12:02 +0000)]
Do not expose code generator choice in the header
There is no need for other passes to access the code-generator command-line
option. Hence, drop it from the header to simplify the interface.
llvm-svn: 235866
Omair Javaid [Mon, 27 Apr 2015 12:01:59 +0000 (12:01 +0000)]
Fix LLDB ARM build error on ubuntu precise with gcc4.7
Differential revision: http://reviews.llvm.org/D9100
llvm-svn: 235865
Patrik Hagglund [Mon, 27 Apr 2015 11:03:53 +0000 (11:03 +0000)]
Remove unused variable, found with gcc-5.1 -Wunused-variable.
The variable, MachOSectionTypes, seems to have been unused since its
introduction in r178679.
llvm-svn: 235863
Toma Tabacu [Mon, 27 Apr 2015 10:50:29 +0000 (10:50 +0000)]
[MC] [IAS] Add support for the \@ .macro pseudo-variable.
Summary:
When used, it is substituted with the number of .macro instantiations we've done up to that point in time.
So if this is the 1st time we've instantiated a .macro (any .macro, regardless of name), \@ will instantiate to 0, if it's the 2nd .macro instantiation, it will instantiate to 1 etc.
It can only be used inside a .macro definition, an .irp definition or an .irpc definition (those last 2 uses are undocumented).
Reviewers: echristo, rafael
Reviewed By: rafael
Subscribers: dsanders, llvm-commits
Differential Revision: http://reviews.llvm.org/D9197
llvm-svn: 235862
Tobias Grosser [Mon, 27 Apr 2015 10:43:10 +0000 (10:43 +0000)]
Remove flag '-polly-annotate-alias-scopes'
This option is enabled since a long time and there does not seem to be a
situation in which we would not want to print alias scopes. Remove this option
to reduce the set of command-line option combinations that may expose bugs.
llvm-svn: 235861
Tobias Grosser [Mon, 27 Apr 2015 10:38:45 +0000 (10:38 +0000)]
Remove implementation of getNumberOfIterations from header [NFC]
We moved this implementation into the header file to share it between
the CLooG and isl code generator. As the CLooG code generator was dropped,
the implementation can be folded back into the .cpp file.
No functional change intended.
llvm-svn: 235860
Ilia K [Mon, 27 Apr 2015 10:07:49 +0000 (10:07 +0000)]
Fix double stdout/stderr output from CLI commands in MI mode (MI)
Summary:
This patch fixes stdout/stderr output that printed twice for CLI commands:
was:
```
(gdb)
target create ~/p/hello
Current executable set to '~/p/hello' (x86_64).
Current executable set to '~/p/hello' (x86_64).
^done
(gdb)
```
now:
```
(gdb)
target create ~/p/hello
Current executable set to '~/p/hello' (x86_64).
^done
(gdb)
```
Test Plan: ./dotest.py -v --executable $BUILDDIR/bin/lldb tools/lldb-mi/
Reviewers: abidh
Reviewed By: abidh
Subscribers: lldb-commits, abidh
Differential Revision: http://reviews.llvm.org/D9277
llvm-svn: 235857
Pawel Bylica [Mon, 27 Apr 2015 09:30:49 +0000 (09:30 +0000)]
Constfold insertelement to undef when index is out-of-bounds
Summary:
This patch adds constant folding of insertelement instruction to undef value when index operand is constant and is not less than vector size or is undef.
InstCombine does not support this case, but I'm happy to add it there also if this change is accepted.
Test Plan: Unittests and regression tests for ConstProp pass.
Reviewers: majnemer
Reviewed By: majnemer
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D9287
llvm-svn: 235854
Pavel Labath [Mon, 27 Apr 2015 09:26:03 +0000 (09:26 +0000)]
Add missing libraries to unittest link
Summary:
Currently, linking of the unittests fails on linux because it is missing a bunch of symbols from
libedit, curses, etc. This fixes the build by adding the correct dependencies.
Test Plan: Linking works, unit tests run.
Reviewers: zturner
Subscribers: lldb-commits
Differential Revision: http://reviews.llvm.org/D9244
llvm-svn: 235853
Pavel Labath [Mon, 27 Apr 2015 09:21:14 +0000 (09:21 +0000)]
Fix register read callback in linux-arm single stepping
The previous read callback always read the value of the register what
caused problems when the emulator wrote some value into a register and
then expected to read the same value back. This CL add a register value
cache into the callbacks to return the correct value after a register
write also.
Test Plan: Stepping over BL/BLX instruction works on android-arm if the instruction set isn't change (other, unrelated patch will come for the case when we move to an other instruction set)
Reviewers: omjavaid, sas, clayborg
Reviewed By: clayborg
Subscribers: labath, tberghammer, rengolin, aemerson, lldb-commits
Differential Revision: http://reviews.llvm.org/D9187
From: Tamas Berghammer <tberghammer@google.com>
llvm-svn: 235852
Pavel Labath [Mon, 27 Apr 2015 09:10:30 +0000 (09:10 +0000)]
XFAIL two mi tests on gcc to stabilise build bots
llvm-svn: 235851
Alexey Bataev [Mon, 27 Apr 2015 08:00:32 +0000 (08:00 +0000)]
[OPENMP] Simplified iteration over clauses, NFC.
llvm-svn: 235838
Simon Pilgrim [Mon, 27 Apr 2015 07:55:46 +0000 (07:55 +0000)]
[X86][SSE] Add v16i8/v32i8 multiplication support
Patch to allow int8 vectors to be multiplied on the SSE unit instead of being scalarized.
The patch sign extends the i8 lanes to i16, uses the SSE2 pmullw multiplication instruction, then packs the lower byte from each result.
Differential Revision: http://reviews.llvm.org/D9115
llvm-svn: 235837
Alexey Bataev [Mon, 27 Apr 2015 05:22:09 +0000 (05:22 +0000)]
[OPENMP] Codegen for 'taskwait' directive.
Emit the following code for 'taskwait' directive within tied task:
call i32 @__kmpc_omp_taskwait(<loc>, i32 <thread_id>);
Differential Revision: http://reviews.llvm.org/D9245
llvm-svn: 235836
Alexey Bataev [Mon, 27 Apr 2015 05:04:13 +0000 (05:04 +0000)]
[OPENMP] Codegen for 'reduction' clause in 'sections' directive.
Emit a code for reduction clause. Next code should be emitted for reductions:
static kmp_critical_name lock = { 0 };
void reduce_func(void *lhs[<n>], void *rhs[<n>]) {
*(Type0*)lhs[0] = ReductionOperation0(*(Type0*)lhs[0], *(Type0*)rhs[0]);
...
*(Type<n>-1*)lhs[<n>-1] =
ReductionOperation<n>-1(*(Type<n>-1*)lhs[<n>-1],
*(Type<n>-1*)rhs[<n>-1]);
}
...
void *RedList[<n>] = {&<RHSExprs>[0], ..., &<RHSExprs>[<n>-1]};
switch (__kmpc_reduce{_nowait}(<loc>, <gtid>, <n>, sizeof(RedList), RedList, reduce_func, &<lock>)) {
case 1:
<LHSExprs>[0] = ReductionOperation0(*<LHSExprs>[0], *<RHSExprs>[0]);
...
<LHSExprs>[<n>-1] = ReductionOperation<n>-1(*<LHSExprs>[<n>-1], *<RHSExprs>[<n>-1]);
__kmpc_end_reduce{_nowait}(<loc>, <gtid>, &<lock>);
break;
case 2:
Atomic(<LHSExprs>[0] = ReductionOperation0(*<LHSExprs>[0], *<RHSExprs>[0]));
...
Atomic(<LHSExprs>[<n>-1] = ReductionOperation<n>-1(*<LHSExprs>[<n>-1], *<RHSExprs>[<n>-1]));
break;
default:;
}
Reduction variables are a kind of a private variables, they have private copies, but initial values are chosen in accordance with the reduction operation.
If sections directive has only single section, then original shared variables are used instead with barrier at the end of the directive.
Differential Revision: http://reviews.llvm.org/D9242
llvm-svn: 235835
Alexey Bataev [Mon, 27 Apr 2015 04:34:03 +0000 (04:34 +0000)]
[OPENMP] Codegen for 'lastprivate' clause in 'sections' directive.
#pragma omp sections lastprivate(<var>)
<BODY>;
This construct is translated into something like:
<last_iter> = alloca i32
<init for lastprivates>;
<last_iter> = 0
; No initializer for simple variables or a default constructor is called for objects.
; For arrays perform element by element initialization by the call of the default constructor.
...
OMP_FOR_START(...,<last_iter>, ..); sets <last_iter> to 1 if this is the last iteration.
<BODY>
...
OMP_FOR_END
if (<last_iter> != 0) {
<final copy for lastprivate>; Update original variable with the lastprivate value.
}
call __kmpc_cancel_barrier() ; an implicit barrier to avoid possible data race.
If there is only one section, there is no special code generation, original shared variables are used + barrier is emitted at the end of the directive.
Differential Revision: http://reviews.llvm.org/D9240
llvm-svn: 235834
Alexey Bataev [Mon, 27 Apr 2015 04:12:12 +0000 (04:12 +0000)]
[OPENMP] Codegen for 'private' clause in 'sections' directive.
If there are 2 or more sections in a 'section' directive the following code is generated:
<default init for privates>
@__kmpc_for_static_init_4();
<BODY for sections directive>
@__kmpc_for_static_fini()
If there is only one section, the following code is generated:
if (@__kmpc_single()) {
<default init for privates>
@__kmpc_end_single();
}
Differential Revision: http://reviews.llvm.org/D9239
llvm-svn: 235833
Alexey Bataev [Mon, 27 Apr 2015 03:48:52 +0000 (03:48 +0000)]
[OPENMP] Codegen for 'private' clause in 'single' directive.
Emit the following code for 'single' directive with 'private' clause:
if (@__kmpc_single()) {
<default init for privates>
@__kmpc_end_single();
}
Differential Revision: http://reviews.llvm.org/D9238
llvm-svn: 235832
David Majnemer [Mon, 27 Apr 2015 03:07:47 +0000 (03:07 +0000)]
[MS ABI] Rephrase the mangling of array types in parameters
Make the canonicalization of array types more consistent.
llvm-svn: 235831
Saleem Abdulrasool [Mon, 27 Apr 2015 02:21:57 +0000 (02:21 +0000)]
libc++abi: remove unused variable
The externC variable was set but unused. This constantly flagged a warning from
gcc. Replace it with a comment until such a time that we need it.
llvm-svn: 235830
Saleem Abdulrasool [Mon, 27 Apr 2015 02:21:55 +0000 (02:21 +0000)]
libc++abi: clear up some -Wqual-cast warnings
Cleans up cast qualifier warnings identified by GCC 4.9.2.
llvm-svn: 235829
Saleem Abdulrasool [Mon, 27 Apr 2015 02:21:52 +0000 (02:21 +0000)]
libc++abi: silence some warnings
Cleans up the -Wundef warning caused by the use of the __LITTLE_ENDIAN__ macro.
Instead use `__BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__`. `__BYTE_ORDER__` is
defined by GCC since 4.2 and by clang. This avoids the undef case where a macro
may be undefined. This has previously caught real errors in libunwind.
llvm-svn: 235828
Philip Reames [Sun, 26 Apr 2015 22:25:29 +0000 (22:25 +0000)]
[PerformanceTips] Italics are *word*, not _word_
llvm-svn: 235827
Philip Reames [Sun, 26 Apr 2015 22:23:12 +0000 (22:23 +0000)]
[PerformanceTips] Provide context on the impact of assume(x)
Sean Silva suggested I add something here a while back. Sorry it's taken so long to get back to this.
llvm-svn: 235826
Philip Reames [Sun, 26 Apr 2015 22:15:18 +0000 (22:15 +0000)]
Add two new items to PerformanceTips
1) Turns out we're not great at recognizing redundant checks when one is a != and the other is an ==. This is a bug, but it's one that matters to frontend authors.
2) Frontends shouldn't use intrinsics unless strictly neccessary. This has been pretty widely proven by this point and is good to document.
llvm-svn: 235825
Philip Reames [Sun, 26 Apr 2015 22:00:34 +0000 (22:00 +0000)]
Make the message associated with a fatal error slightly more helpful
Looking into 23095, my best guess is that the CodeGen library itself isn't getting linked and initialized properly. To make this slightly more obvious to consumers of LLVM, emit a different error message if we can tell that the registry is empty vs you've simply happened to name a collector which hasn't been registered.
llvm-svn: 235824
Johannes Doerfert [Sun, 26 Apr 2015 20:07:21 +0000 (20:07 +0000)]
Use all available range information for parameters
In the following even full-range information will help to avoid
runtime checks for wrapping integers, hence we enable it now.
llvm-svn: 235823
Johannes Doerfert [Sun, 26 Apr 2015 19:55:21 +0000 (19:55 +0000)]
Use the original no-wrap flags for normalized AddRecs
llvm-svn: 235822
Philip Reames [Sun, 26 Apr 2015 19:48:03 +0000 (19:48 +0000)]
[RewriteStatepointsForGC] Exclude constant values from being considered live at a safepoint
There can be various constant pointers in the IR which do not get relocated at a safepoint. One example is the address of a global variable. Another example is a pointer created via inttoptr. Note that the optimizer itself likes to create such inttoptrs when locally propagating constants through dynamically dead code.
To deal with this, we need to exclude uses of constants from contributing to the liveness of a safepoint which might reach that use. At some later date, it might be worth exploring what could be done to support the relocation of various special types of "constants", but that's future work.
Differential Revision: http://reviews.llvm.org/D9236
llvm-svn: 235821
Philip Reames [Sun, 26 Apr 2015 19:41:23 +0000 (19:41 +0000)]
Don't Place Entry Safepoints Before the llvm.frameescape() Intrinsic
llvm.frameescape() intrinsic is not a real call. The intrinsic can only exist in the entry block. Inserting a gc.statepoint() before llvm.frameescape() may split the entry block, and push the intrinsic out of the entry block.
Patch by: Swaroop.Sridhar@microsoft.com
Differential Revision: http://reviews.llvm.org/D8910
llvm-svn: 235820
Ilia K [Sun, 26 Apr 2015 07:51:14 +0000 (07:51 +0000)]
Add SBLaunchInfo in include/lldb/API/SBDefines.h and fix spacing in scripts/Python/buildSwigPython.py
llvm-svn: 235819
David Majnemer [Sun, 26 Apr 2015 07:35:03 +0000 (07:35 +0000)]
[Sema] Do not permit binding a reference to a compound literal
We could probably make this work if we cared enough. However, we are
far outside any language rules at this point.
This fixes PR21834.
llvm-svn: 235818
Ilia K [Sun, 26 Apr 2015 05:55:59 +0000 (05:55 +0000)]
Clean the CMIDriver (MI)
This patch does the following things:
* Use CMICmnStreamStdout::TextToStdout to print (gdb) prompt in CMIDriver::InitClientIDEEclipse
* Remove unnecessary inclusions
llvm-svn: 235817
David Majnemer [Sun, 26 Apr 2015 04:58:18 +0000 (04:58 +0000)]
[Sema] Don't allow unverified bitfields in FieldDecls
VerifyBitField must be called if we are to form a bitfield FieldDecl.
We will not verify the bitfield if the decl is known to be malformed in
other ways; pretend that we don't have a bitfield if this happens.
llvm-svn: 235816
John McCall [Sun, 26 Apr 2015 04:43:26 +0000 (04:43 +0000)]
Correctly handle zero-sized but non-empty base classes in IRGen.
Fixes rdar://
20621065.
A more elegant fix would preclude this case by defining the
rules such that zero-size classes are always formally empty.
I believe the only extensions which create zero-size classes
right now are flexible arrays and zero-length arrays; it's
not abstractly unreasonable to say that those don't count
as members for the purposes of emptiness, just as zero-width
bitfields don't count. But that's an ABI-affecting change
and requires further discussion; in the meantime, let's not
assert / miscompile.
llvm-svn: 235815