Elizabeth Andrews [Tue, 13 Aug 2019 15:53:19 +0000 (15:53 +0000)]
Fix crash on switch conditions of non-integer types in templates
Clang currently crashes for switch statements inside a template when
the condition is a non-integer field. The crash is due to incorrect
type-dependency of field. Type-dependency of member expressions is
currently set based on the containing class. This patch changes this for
'members of the current instantiation' to set the type dependency based
on the member's type instead.
A few lit tests started to fail once I applied this patch because errors
are now diagnosed earlier (does not wait till instantiation). I've modified
these tests in this patch as well.
Patch fixes PR#40982
Differential Revision: https://reviews.llvm.org/D61027
llvm-svn: 368706
Matt Arsenault [Tue, 13 Aug 2019 15:52:21 +0000 (15:52 +0000)]
GlobalISel: Add more verifier checks for G_SHUFFLE_VECTOR
llvm-svn: 368705
Matt Arsenault [Tue, 13 Aug 2019 15:34:38 +0000 (15:34 +0000)]
GlobalISel: Change representation of shuffle masks
Currently shufflemasks get emitted as any other constant, and you end
up with a bunch of virtual registers of G_CONSTANT with a
G_BUILD_VECTOR. The AArch64 selector then asserts on anything that
doesn't fit this pattern. This isn't an ideal representation, and
should avoid legalization and have fewer opportunities for a
representational error.
Rather than invent a new shuffle mask operand type, similar to what
ShuffleVectorSDNode does, just track the original IR Constant mask
operand. I don't completely like the idea of adding another link to
the IR, but MIR is already quite dependent on IR constants already,
and this will allow sharing the shuffle mask utility functions with
the IR.
llvm-svn: 368704
Louis Dionne [Tue, 13 Aug 2019 15:02:53 +0000 (15:02 +0000)]
[libc++] Always build with -fvisibility=hidden
Summary:
This avoids symbols being accidentally exported from the dylib when they
shouldn't. The next step is to use a pragma to apply hidden visibility
to all declarations (unless otherwise specified), which will allow us
to drop the per-declaration hidden visibility attributes we currently
have.
This also has the nice side effect of making sure the dylib exports the
same symbols regardless of the optimization level.
PR38138
Reviewers: EricWF, mclow.lists
Subscribers: mgorny, christof, jkorous, dexonsmith, libcxx-commits
Tags: #libc
Differential Revision: https://reviews.llvm.org/D62868
llvm-svn: 368703
Roman Lebedev [Tue, 13 Aug 2019 14:57:37 +0000 (14:57 +0000)]
[CodeGen][SelectionDAG] More efficient code for X % C == 0 (SREM case)
Summary:
This implements an optimization described in Hacker's Delight 10-17:
when `C` is constant, the result of `X % C == 0` can be computed
more cheaply without actually calculating the remainder.
The motivation is discussed here: https://bugs.llvm.org/show_bug.cgi?id=35479.
One huge caveat: this signed case is only valid for positive divisors.
While we can freely negate negative divisors, we can't negate `INT_MIN`,
so for now if `INT_MIN` is encountered, we bailout.
As a follow-up, it should be possible to handle that more gracefully
via extra `and`+`setcc`+`select`.
This passes llvm's test-suite, and from cursory(!) cross-examination
the folds (the assembly) match those of GCC, and manual checking via alive
did not reveal any issues (other than the `INT_MIN` case)
Reviewers: RKSimon, spatel, hermord, craig.topper, xbolva00
Reviewed By: RKSimon, xbolva00
Subscribers: xbolva00, thakis, javed.absar, hiraditya, dexonsmith, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D65366
llvm-svn: 368702
Roman Lebedev [Tue, 13 Aug 2019 14:57:08 +0000 (14:57 +0000)]
[TargetLowering][NFC] prepareUREMEqFold(): fixup comment
The comment initially matched the code, but the code was incorrect
and was fixed after the initial revert back back when it was introduced,
but the comment was never updated.
llvm-svn: 368701
Yitzhak Mandelbaum [Tue, 13 Aug 2019 14:48:13 +0000 (14:48 +0000)]
[clang-tidy] Update `TransformerClangTidyCheck` to use new `buildMatchers` functionality.
Summary:
`buildMatchers` is the new, more general way to extract the matcher from a rule.
This change migrates the code to use it instead of `buildMatcher`.
Reviewers: gribozavr
Subscribers: xazax.hun, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D65879
llvm-svn: 368700
Hubert Tong [Tue, 13 Aug 2019 14:43:34 +0000 (14:43 +0000)]
Revert r368691; test checked in without changes by accident
llvm-svn: 368699
Jordan Rupprecht [Tue, 13 Aug 2019 14:38:45 +0000 (14:38 +0000)]
[llvm-readelf] Implement note parsing for NT_FILE and unknown descriptors
Summary:
This patch implements two note parsers; one for NT_FILE coredumps, e.g.:
```
CORE 0x00000080 NT_FILE (mapped files)
Page size: 4096
Start End Page Offset
0x0000000000001000 0x0000000000002000 0x0000000000003000
/path/to/a.out
0x0000000000004000 0x0000000000005000 0x0000000000006000
/path/to/libc.so
0x0000000000007000 0x0000000000008000 0x0000000000009000
[stack]
```
(A more realistic example can be tested locally by creating a crashing program and running `llvm-readelf -n core`)
And also implements a raw hex dump for unknown descriptor data for unhandled descriptor types.
Reviewers: MaskRay, jhenderson, grimar, alexshap
Reviewed By: MaskRay, grimar
Subscribers: emaste, llvm-commits, labath
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D65832
llvm-svn: 368698
Momchil Velikov [Tue, 13 Aug 2019 14:20:23 +0000 (14:20 +0000)]
Enable memtag sanitizer in all AArch64 toolchains
That sanitizer does not have runtime library or other dependencies.
Differential Revision: https://reviews.llvm.org/D65642
llvm-svn: 368697
Momchil Velikov [Tue, 13 Aug 2019 14:20:06 +0000 (14:20 +0000)]
[AArch64] Make the memtag sanitizer require the memtag extension
... or otherwise we get an ICE.
Differential Revision: https://reviews.llvm.org/D65508
llvm-svn: 368696
Raphael Isemann [Tue, 13 Aug 2019 14:13:39 +0000 (14:13 +0000)]
[lldb] Fix Microsoft guard variable detection
Apparently we need to check for a suffix, not a prefix. This broke
probably broke expression evaluation on Windows.
llvm-svn: 368695
Kristof Umann [Tue, 13 Aug 2019 13:56:12 +0000 (13:56 +0000)]
[analyzer][NFC] Refactoring BugReporter.cpp P2.: Clean up the construction of bug paths and finding a valid report
This patch refactors the utility functions and classes around the construction
of a bug path.
At a very high level, this consists of 3 steps:
* For all BugReports in the same BugReportEquivClass, collect all their error
nodes in a set. With that set, create a new, trimmed ExplodedGraph whose leafs
are all error nodes.
* Until a valid report is found, construct a bug path, which is yet another
ExplodedGraph, that is linear from a given error node to the root of the graph.
* Run all visitors on the constructed bug path. If in this process the report
got invalidated, start over from step 2.
Now, to the changes within this patch:
* Do not allow the invalidation of BugReports up to the point where the trimmed
graph is constructed. Checkers shouldn't add bug reports that are known to be
invalid, and should use visitors and argue about the entirety of the bug path if
needed.
* Do not calculate indices. I may be biased, but I personally find code like
this horrible. I'd like to point you to one of the comments in the original code:
SmallVector<const ExplodedNode *, 32> errorNodes;
for (const auto I : bugReports) {
if (I->isValid()) {
HasValid = true;
errorNodes.push_back(I->getErrorNode());
} else {
// Keep the errorNodes list in sync with the bugReports list.
errorNodes.push_back(nullptr);
}
}
Not on my watch. Instead, use a far easier to follow trick: store a pointer to
the BugReport in question, not an index to it.
* Add range iterators to ExplodedGraph's successors and predecessors, and a
visitor range to BugReporter.
* Rename TrimmedGraph to BugPathGetter. Because that is what it has always been:
no sane graph type should store an iterator-like state, or have an interface not
exposing a single graph-like functionalities.
* Rename ReportGraph to BugPathInfo, because it is only a linear path with some
other context.
* Instead of having both and out and in parameter (which I think isn't ever
excusable unless we use the out-param for caching), return a record object with
descriptive getter methods.
* Where descriptive names weren't sufficient, compliment the code with comments.
Differential Revision: https://reviews.llvm.org/D65379
llvm-svn: 368694
Simon Pilgrim [Tue, 13 Aug 2019 13:55:38 +0000 (13:55 +0000)]
Fix -Wdocumentation warning (@returns used in void function). NFCI.
llvm-svn: 368693
Simon Pilgrim [Tue, 13 Aug 2019 13:52:20 +0000 (13:52 +0000)]
Fix -Wdocumentation typo. NFCI.
llvm-svn: 368692
Hubert Tong [Tue, 13 Aug 2019 13:38:24 +0000 (13:38 +0000)]
[AIX] Implement LR prolog/epilog save/restore
Summary:
This patch fixes the offsets of fields in the stack frame linkage save
area for AIX.
Reviewers: sfertile, hubert.reinterpretcast, jasonliu, Xiangling_L, xingxue, ZarkoCA, daltenty
Reviewed By: hubert.reinterpretcast
Subscribers: wuzish, nemanjai, hiraditya, kbarton, MaskRay, jsji, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D64424
Patch by Chris Bowler!
llvm-svn: 368691
Hubert Tong [Tue, 13 Aug 2019 13:38:15 +0000 (13:38 +0000)]
[AIX][test/Index] Set/propagate AIXTHREAD_STK for AIX
Summary:
Some tests perform deep recursion, which requires a larger pthread stack
size than the relatively low default of 192 KiB for 64-bit processes on
AIX. The `AIXTHREAD_STK` environment variable provides a non-intrusive
way to request a larger pthread stack size for the tests. The required
pthread stack size depends on the build configuration.
A 4 MiB default is generous compared to the 512 KiB of macOS; however,
it is known that some compilers on AIX produce code that uses
comparatively more stack space.
Reviewers: xingxue, daltenty, jasonliu
Reviewed By: daltenty
Subscribers: arphaman, jfb, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D65688
llvm-svn: 368690
Kristof Umann [Tue, 13 Aug 2019 13:09:48 +0000 (13:09 +0000)]
[analyzer][NFC] Refactoring BugReporter.cpp P1.: Store interesting symbols/regions in a simple set
The goal of this refactoring effort was to better understand how interestingness
was propagated in BugReporter.cpp, which eventually turned out to be a dead end,
but with such a twist, I wouldn't even want to spoil it ahead of time. However,
I did get to learn a lot about how things are working in there.
In these series of patches, as well as cleaning up the code big time, I invite
you to study how BugReporter.cpp operates, and discuss how we could design this
file to reduce the horrible mess that it is.
This patch reverts a great part of rC162028, which holds the title "Allow
multiple PathDiagnosticConsumers to be used with a BugReporter at the same
time.". This, however doesn't imply that there's any need for multiple "layers"
or stacks of interesting symbols and regions, quite the contrary, I would argue
that we would like to generate the same amount of information for all output
types, and only process them differently.
Differential Revision: https://reviews.llvm.org/D65378
llvm-svn: 368689
Raphael Isemann [Tue, 13 Aug 2019 13:09:18 +0000 (13:09 +0000)]
[lldb] Reland "Refactor guard variable checks in IRForTarget"
It seems the broken guard variable check for Windows was a feature(TM)
and not a bug, so let's keep add a flag to the guard check that keeps
the old behavior in the places where we ignored guard variables before.
llvm-svn: 368688
Roman Lebedev [Tue, 13 Aug 2019 12:49:28 +0000 (12:49 +0000)]
[InstCombine] Non-canonical clamp-like pattern handling
Summary:
Given a pattern like:
```
%old_cmp1 = icmp slt i32 %x, C2
%old_replacement = select i1 %old_cmp1, i32 %target_low, i32 %target_high
%old_x_offseted = add i32 %x, C1
%old_cmp0 = icmp ult i32 %old_x_offseted, C0
%r = select i1 %old_cmp0, i32 %x, i32 %old_replacement
```
it can be rewritten as more canonical pattern:
```
%new_cmp1 = icmp slt i32 %x, -C1
%new_cmp2 = icmp sge i32 %x, C0-C1
%new_clamped_low = select i1 %new_cmp1, i32 %target_low, i32 %x
%r = select i1 %new_cmp2, i32 %target_high, i32 %new_clamped_low
```
Iff `-C1 s<= C2 s<= C0-C1`
Also, `ULT` predicate can also be `UGE`; or `UGT` iff `C0 != -1` (+invert result)
Also, `SLT` predicate can also be `SGE`; or `SGT` iff `C2 != INT_MAX` (+invert result)
If `C1 == 0`, then all 3 instructions must be one-use; else at most either `%old_cmp1` or `%old_x_offseted` can have extra uses.
NOTE: if we could reuse `%old_cmp1` as one of the comparisons we'll have to build, this could be less limiting.
So there are two icmp's, each one with 3 predicate variants, so there are 9 fold variants:
| | ULT | UGE | UGT |
| SLT | https://rise4fun.com/Alive/yIJ | https://rise4fun.com/Alive/5BfN | https://rise4fun.com/Alive/INH |
| SGE | https://rise4fun.com/Alive/hd8 | https://rise4fun.com/Alive/Abk | https://rise4fun.com/Alive/PlzS |
| SGT | https://rise4fun.com/Alive/VYG | https://rise4fun.com/Alive/oMY | https://rise4fun.com/Alive/KrzC |
{
F9730206}
This fold was brought up in https://reviews.llvm.org/D65148#1603922 by @dmgreen, and is needed to unblock that patch.
This patch requires D65530.
Reviewers: spatel, nikic, xbolva00, dmgreen
Reviewed By: spatel
Subscribers: hiraditya, llvm-commits, dmgreen
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D65765
llvm-svn: 368687
Roman Lebedev [Tue, 13 Aug 2019 12:49:16 +0000 (12:49 +0000)]
[InstCombine][NFC] Rename IsFreeToInvert() -> isFreeToInvert() for consistency
As per https://reviews.llvm.org/D65530#inline-592325
llvm-svn: 368686
Roman Lebedev [Tue, 13 Aug 2019 12:49:06 +0000 (12:49 +0000)]
[InstCombine] foldXorOfICmps(): don't give up on non-single-use ICmp's if all users are freely invertible
Summary:
This is rather unconventional..
As the comment there says, we don't have much folds for xor-of-icmps,
we try to turn them into an and-of-icmps, for which we have plenty of folds.
But if the ICmp we need to invert is not single-use - we give up.
As discussed in https://reviews.llvm.org/D65148#1603922,
we may have a non-canonical CLAMP pattern, with bit match and
select-of-threshold that we'll potentially clamp.
As it can be seen in `canonicalize-clamp-with-select-of-constant-threshold-pattern.ll`,
out of all 8 variations of the pattern, only two are **not** canonicalized into
the variant with and+icmp instead of bit math.
The reason is because the ICmp we need to invert is not single-use - we give up.
We indeed can't perform this fold at will, the general rule is that
we should not increase instruction count in InstCombine,
But we wouldn't end up increasing instruction count if we can adapt every other
user to the inverted value. This way the `not` we create **will** get folded,
and in the end the instruction count did not increase.
For that, of course, we need to look at the users of a Value,
which is again rather unconventional for InstCombine :S
Thus i'm proposing to be a little bit more insistive in `foldXorOfICmps()`.
The alternatives would be to not create that `not`, but add duplicate code to
manually invert all users; or to add some even less general combine to handle
some more specific pattern[s].
Reviewers: spatel, nikic, RKSimon, craig.topper
Reviewed By: spatel
Subscribers: hiraditya, jdoerfert, dmgreen, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D65530
llvm-svn: 368685
Louis Dionne [Tue, 13 Aug 2019 12:49:00 +0000 (12:49 +0000)]
[pstl] Allow customizing whether per-TU insulation is provided
Like we do in libc++, PSTL needs the ability to constrain
ABI-unstable symbols to each translation unit. This is OFF by
default (like for libc++), because most people don't care about
this and there is a cost associated to enabling the option (code
bloat because templates are not deduped across TUs).
I'm using '#pragma clang attribute push' to avoid marking each
declaration with an attribute, which quickly becomes difficult
to maintain.
llvm-svn: 368684
Yitzhak Mandelbaum [Tue, 13 Aug 2019 12:31:29 +0000 (12:31 +0000)]
[libTooling] In Transformer, generalize `applyFirst` to admit rules with incompatible matchers.
Summary:
This patch removes an (artificial) limitation of `applyFirst`, which requires
that all of the rules' matchers can be grouped together in a single `anyOf()`.
This change generalizes the code to group the matchers into separate `anyOf`s
based on compatibility. Correspondingly, `buildMatcher` is changed to
`buildMatchers`, to allow for returning a set of matchers rather than just one.
Reviewers: gribozavr
Subscribers: cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D65877
llvm-svn: 368681
Raphael Isemann [Tue, 13 Aug 2019 12:12:19 +0000 (12:12 +0000)]
[lldb][NFC] Add basic IOHandler completion test
We have no test coverage for the IOHandler code that is doing the
completion in the command line. This is adding a pexpect-based test
as a preparation for the switch to using CompletionRequest in the
whole completion machinery.
llvm-svn: 368679
George Rimar [Tue, 13 Aug 2019 12:07:41 +0000 (12:07 +0000)]
[llvm-readobj] - Remove 'error(Error EC)' helper.
We do not need it. I replaced it with
reportError(StringRef Input, Error Err).
Differential revision: https://reviews.llvm.org/D66011
llvm-svn: 368677
Brian Gesiak [Tue, 13 Aug 2019 12:02:25 +0000 (12:02 +0000)]
[CodeGen] Disable UBSan for coroutine functions
Summary:
As explained in http://lists.llvm.org/pipermail/llvm-dev/2018-March/121924.html,
the LLVM coroutines transforms are not yet able to move the
instructions for UBSan null checking past coroutine suspend boundaries.
For now, disable all UBSan checks when generating code for coroutines
functions.
I also considered an approach where only '-fsanitize=null' would be disabled,
However in practice this led to other LLVM errors when writing object files:
"Cannot represent a difference across sections". For now, disable all
UBSan checks until coroutine transforms are updated to handle them.
Test Plan:
1. check-clang
2. Compile the program in https://gist.github.com/modocache/
54a036c3bf9c06882fe85122e105d153
using the '-fsanitize=null' option and confirm it does not crash
during LLVM IR generation.
Reviewers: GorNishanov, vsk, eric_niebler, lewissbaker
Reviewed By: vsk
Subscribers: cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D44672
llvm-svn: 368675
Louis Dionne [Tue, 13 Aug 2019 11:50:26 +0000 (11:50 +0000)]
[pstl] Rename PARALLELSTL_BACKEND to PSTL_PARALLEL_BACKEND
It makes more sense to name configuration options as PSTL_XXX.
Also, I'm naming it PSTL_PARALLEL_BACKEND because we might introduce
the ability to customize the vectorization backend, in which case
PSTL_BACKEND would become ambiguous.
llvm-svn: 368672
Nico Weber [Tue, 13 Aug 2019 11:48:15 +0000 (11:48 +0000)]
gn build: Extract git() and git_out() functions in sync script
llvm-svn: 368671
Nico Weber [Tue, 13 Aug 2019 11:32:54 +0000 (11:32 +0000)]
gn build: Merge r368630
llvm-svn: 368668
Nico Weber [Tue, 13 Aug 2019 11:32:45 +0000 (11:32 +0000)]
gn build: Give cmake sync script an opt-in --write flag
Differential Revision: https://reviews.llvm.org/D66101
llvm-svn: 368667
Louis Dionne [Tue, 13 Aug 2019 11:25:16 +0000 (11:25 +0000)]
[libc++] Fix incorrect UNSUPPORTED annotation
The test was marked as UNSUPPORTED for clang-6 and clang-6, instead of
clang-6 and clang-7.
llvm-svn: 368666
Nico Weber [Tue, 13 Aug 2019 11:24:20 +0000 (11:24 +0000)]
gn build: Make sync script group output by revision
Differential Revision: https://reviews.llvm.org/D66090
llvm-svn: 368665
Louis Dionne [Tue, 13 Aug 2019 11:12:28 +0000 (11:12 +0000)]
[libc++] Use [[nodiscard]] for lock_guard, as an extension
Summary:
D64914 added support for applying [[nodiscard]] to constructors. This
commit uses that capability to flag incorrect uses of std::lock_guard
where one forgets to actually create a variable for the lock_guard.
rdar://
45790820
Reviewers: mclow.lists, EricWF
Subscribers: christof, jkorous, dexonsmith, libcxx-commits, Quuxplusone, lebedev.ri
Tags: #libc
Differential Revision: https://reviews.llvm.org/D65900
llvm-svn: 368664
Simon Pilgrim [Tue, 13 Aug 2019 11:11:42 +0000 (11:11 +0000)]
[X86] XFormVExtractWithShuffleIntoLoad - handle shuffle mask scaling
If the target shuffle mask is from a wider type, attempt to scale the mask so that the extraction can attempt to peek through.
Fixes the regression mentioned in rL368662
Reapplying this as rL368308 had to be reverted as part of rL368660 to revert rL368276
llvm-svn: 368663
Simon Pilgrim [Tue, 13 Aug 2019 10:51:39 +0000 (10:51 +0000)]
[X86] SimplifyDemandedVectorElts - attempt to recombine target shuffle using DemandedElts mask (reapplied)
If we don't demand all elements, then attempt to combine to a simpler shuffle.
At the moment we can only do this if Depth == 0 as combineX86ShufflesRecursively uses Depth to track whether the shuffle has really changed or not - we'll need to change this before we can properly start merging combineX86ShufflesRecursively into SimplifyDemandedVectorElts.
The insertps-combine.ll regression is because XFormVExtractWithShuffleIntoLoad can't see through shuffles of different widths - this will be fixed in a follow-up commit.
Reapplying this as rL368307 had to be reverted as part of rL368660 to revert rL368276
llvm-svn: 368662
Fangrui Song [Tue, 13 Aug 2019 09:43:40 +0000 (09:43 +0000)]
[ELF] Don't special case symbolic relocations with 0 addend to ifunc in writable locations
Currently the following 3 relocation types do not trigger the creation
of a canonical PLT (which changes STT_GNU_IFUNC to STT_FUNC and
redirects all references):
1) GOT-generating (`needsGot`)
2) PLT-generating (`needsPlt`)
3) R_ABS with 0 addend in a writable location. This is used for
for ifunc function pointers in writable sections such as .data and .toc.
This patch deletes case 3) to simplify the R_*_IRELATIVE generating
logic added in D57371. Other advantages:
* It is guaranteed no more than 1 R_*_IRELATIVE is created for an ifunc.
* PPC64: no need to special case ifunc in toc-indirect to toc-relative relaxation. See D65755
The deleted elf::addIRelativeRelocs demonstrates that one-pass scan
through relocations makes several optimizations difficult. This is
something we can think about in the future.
Reviewed By: peter.smith
Differential Revision: https://reviews.llvm.org/D65995
llvm-svn: 368661
Hans Wennborg [Tue, 13 Aug 2019 09:33:25 +0000 (09:33 +0000)]
Revert r368276 "[TargetLowering] SimplifyDemandedBits - call SimplifyMultipleUseDemandedBits for ISD::EXTRACT_VECTOR_ELT"
This introduced a false positive MemorySanitizer warning about use of
uninitialized memory in a vectorized crc function in Chromium. That suggests
maybe something is not right with this transformation. See
https://crbug.com/992853#c7 for a reproducer.
This also reverts the follow-up commits r368307 and r368308 which
depended on this.
> This patch attempts to peek through vectors based on the demanded bits/elt of a particular ISD::EXTRACT_VECTOR_ELT node, allowing us to avoid dependencies on ops that have no impact on the extract.
>
> In particular this helps remove some unnecessary scalar->vector->scalar patterns.
>
> The wasm shift patterns are annoying - @tlively has indicated that the wasm vector shift codegen are to be refactored in the near-term and isn't considered a major issue.
>
> Differential Revision: https://reviews.llvm.org/D65887
llvm-svn: 368660
Fangrui Song [Tue, 13 Aug 2019 09:12:52 +0000 (09:12 +0000)]
[ELF] Simplify handling of exportDynamic and isPreemptible
In Writer::includeInDynSym(), exportDynamic is used by a Defined with
protected or default visibility, to record whether it is required to be
exported into .dynsym. It is set when any of the following conditions
hold:
1) There is an interposable symbol from a DSO (Undefined or SharedSymbol with default visibility)
2) If -shared or --export-dynamic is specified, any symbol in an object file/bitcode sets this property, unless suppressed by canBeOmittedFromSymbolTable().
3) --dynamic-list when producing an executable
4) protected symbol from a DSO preempted by copy relocation/canonical PLT when
--ignore-{data,function}-address-equality is specified
5) ifunc is exported when -z ifunc-noplt is specified
Bullet points 4) and 5) are irrelevant in this patch.
Bullet 3) does not play well with 1) and 2). When -shared is specified,
exportDynamic of most symbols is true. This makes it incapable to record
--dynamic-list marked symbols. We thus have obscure:
if (!config->shared)
b->exportDynamic = true;
else if (b->includeInDynsym())
b->isPreemptible = true;
This patch adds another bit `Symbol::inDynamicList` to record
3). We can thus simplify handleDynamicList() by unifying the DSO and
executable cases. It also allows us to simplify isPreemptible - now
the field is only used in finalizeSections() and later stages.
Reviewed By: peter.smith
Differential Revision: https://reviews.llvm.org/D66091
llvm-svn: 368659
David Bolvansky [Tue, 13 Aug 2019 09:12:07 +0000 (09:12 +0000)]
[NFC] Updated tests after r368657
llvm-svn: 368658
David Bolvansky [Tue, 13 Aug 2019 09:11:49 +0000 (09:11 +0000)]
[SimplifyLibCalls] Add dereferenceable bytes from known callsites
Summary:
int mm(char *a, char *b) {
return memcmp(a,b,16);
}
Currently:
define dso_local i32 @mm(i8* nocapture readonly %a, i8* nocapture readonly %b) local_unnamed_addr #1 {
entry:
%call = tail call i32 @memcmp(i8* %a, i8* %b, i64 16)
ret i32 %call
}
After patch:
define dso_local i32 @mm(i8* nocapture readonly %a, i8* nocapture readonly %b) local_unnamed_addr #1 {
entry:
%call = tail call i32 @memcmp(i8* dereferenceable(16) %a, i8* dereferenceable(16) %b, i64 16)
ret i32 %call
}
Reviewers: jdoerfert, efriedma
Reviewed By: jdoerfert
Subscribers: javed.absar, spatel, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D66079
llvm-svn: 368657
Roman Lebedev [Tue, 13 Aug 2019 08:14:13 +0000 (08:14 +0000)]
[NFC][InstCombine] Non-canonical clamp pattern: non-canonical predicate tests
We can't handle 'uge' case because we can't ever get it,
there needs to be extra use on that compare or else it will be
canonicalized, but because of extra use we can't handle it.
'sge' case we can have.
llvm-svn: 368656
Balazs Keri [Tue, 13 Aug 2019 08:04:06 +0000 (08:04 +0000)]
[ASTImporter] Import additional flags for functions.
Summary:
At AST import of function delcarations import the flags for defaulted
and deleted.
Reviewers: martong, a.sidorin, shafik, a_sidorin
Reviewed By: a_sidorin
Subscribers: rnkovacs, dkrupp, Szelethus, gamesh411, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D65999
llvm-svn: 368655
Qiu Chaofan [Tue, 13 Aug 2019 07:53:29 +0000 (07:53 +0000)]
[PowerPC] Fix ICE when truncating some vectors
The legalizer would hit an assertion on PowerPC platform when truncating
a vector whose size is not power of 2. This patch is to add a check to
prevent vectors with such odd-size elements from being custom lowered.
Reviewed By: Hal Finkel
Differential Revision: https://reviews.llvm.org/D65261
llvm-svn: 368654
Amara Emerson [Tue, 13 Aug 2019 06:55:32 +0000 (06:55 +0000)]
[AArch64][GlobalISel] Replace explicit vreg creation with implicit using SrcOp. NFC.
llvm-svn: 368653
Amara Emerson [Tue, 13 Aug 2019 06:26:59 +0000 (06:26 +0000)]
[GlobalISel] Make the InstructionSelector instance non-const, allowing state to be maintained.
Currently we can't keep any state in the selector object that we get from
subtarget. As a result we have to plumb through all our variables through
multiple functions. This change makes it non-const and adds a virtual init()
method to allow further state to be captured for each target.
AArch64 makes use of this in this patch to cache a call to hasFnAttribute()
which is expensive to call, and is used on each selection of G_BRCOND.
Differential Revision: https://reviews.llvm.org/D65984
llvm-svn: 368652
Fangrui Song [Tue, 13 Aug 2019 06:19:39 +0000 (06:19 +0000)]
[ELF] Rename odd variable names "New" after r365730. NFC
New -> newSym or newFlags
Reviewed By: atanasyan
Differential Revision: https://reviews.llvm.org/D66127
llvm-svn: 368651
Serge Pavlov [Tue, 13 Aug 2019 05:21:18 +0000 (05:21 +0000)]
Added unit tests to check supported rounding modes
Also added fixed misspelled metadata name.
Differential Revision: https://reviews.llvm.org/D66073
llvm-svn: 368650
Fangrui Song [Tue, 13 Aug 2019 05:08:46 +0000 (05:08 +0000)]
[ELF][test] Add dynamic-list-preempt2.s
When producing a DSO, the isPreemptible property of a Defined with
default or protected visibility is affected by the --dynamic-list file,
but not by interposable symbols in other DSOs.
llvm-svn: 368649
Aditya Nandakumar [Tue, 13 Aug 2019 04:32:33 +0000 (04:32 +0000)]
[GlobalISel]: Add KnownBits for G_XOR
https://reviews.llvm.org/D66119
llvm-svn: 368648
Yevgeny Rouban [Tue, 13 Aug 2019 04:03:38 +0000 (04:03 +0000)]
Verifier: check prof branch_weights
This patch is to check some of constraints on
!pro branch_weights metadata:
https://llvm.org/docs/BranchWeightMetadata.html
Reviewers: asbirlea, reames, chandlerc
Reviewed By: reames
Differential Revision: https://reviews.llvm.org/D61179
llvm-svn: 368647
Akira Hatanaka [Tue, 13 Aug 2019 01:23:06 +0000 (01:23 +0000)]
Do not call replaceAllUsesWith to upgrade calls to ARC runtime functions
to intrinsic calls
This fixes a bug in r368311.
It turns out that the ARC runtime functions in the IR can have pointer
parameter types that are not i8* or i8**. Instead of RAUWing normal
functions with intrinsics, manually bitcast the arguments before passing
them to the intrinsic functions and bitcast the return value back to the
type of the original call instruction.
This recommits r368634, which was reverted in r368637. The loop in the
patch was iterating over uses of a function and deleting function calls
inside it, which caused bots to crash.
rdar://problem/
54125406
Differential Revision: https://reviews.llvm.org/D66047
llvm-svn: 368646
Stanislav Mekhanoshin [Tue, 13 Aug 2019 01:07:27 +0000 (01:07 +0000)]
[AMDGPU] Fix msan failure in printf lowering
llvm-svn: 368645
Bob Haarman [Tue, 13 Aug 2019 01:02:30 +0000 (01:02 +0000)]
[lld] Remove unnecessary "class Lazy"
llvm-svn: 368644
Daniel Sanders [Tue, 13 Aug 2019 00:55:24 +0000 (00:55 +0000)]
Eliminate implicit Register->unsigned conversions in VirtRegMap. NFC
Summary:
This was mostly an experiment to assess the feasibility of completely
eliminating a problematic implicit conversion case in D61321 in advance of
landing that* but it also happens to align with the goal of propagating the
use of Register/MCRegister instead of unsigned so I believe it makes sense
to commit it.
The overall process for eliminating the implicit conversions from
Register/MCRegister -> unsigned was to:
1. Add an explicit conversion to support genuinely required conversions to
unsigned. For example, using them as an index for IndexedMap. Sadly it's
not possible to have an explicit and implicit conversion to the same
type and only deprecate the implicit one so I called the explicit
conversion get().
2. Temporarily annotate the implicit conversion to unsigned with
LLVM_ATTRIBUTE_DEPRECATED to make them visible
3. Eliminate implicit conversions by propagating Register/MCRegister/
explicit-conversions appropriately
4. Remove the deprecation added in 2.
* My conclusion is that it isn't feasible as there's too much code to
update in one go.
Depends on D65678
Reviewers: arsenm
Subscribers: MatzeB, wdng, hiraditya, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D65685
llvm-svn: 368643
Julian Lettner [Tue, 13 Aug 2019 00:37:48 +0000 (00:37 +0000)]
[TSan] Fix test failing on Linux
llvm-svn: 368641
Alex Lorenz [Tue, 13 Aug 2019 00:36:35 +0000 (00:36 +0000)]
clang-scan-deps: do not spawn threads when LLVM_ENABLE_THREADS is disabled
llvm-svn: 368640
Alex Langford [Tue, 13 Aug 2019 00:25:49 +0000 (00:25 +0000)]
[Symbol] Remove redundant include
llvm-svn: 368638
Akira Hatanaka [Tue, 13 Aug 2019 00:20:36 +0000 (00:20 +0000)]
Revert "Do not call replaceAllUsesWith to upgrade calls to ARC runtime functions"
This reverts commit r368634 because it broke a bot.
llvm-svn: 368637
Eric Christopher [Tue, 13 Aug 2019 00:05:01 +0000 (00:05 +0000)]
Move findBBwithCalls to the file it's used in to avoid unused function
warnings.
llvm-svn: 368636
Craig Topper [Tue, 13 Aug 2019 00:00:27 +0000 (00:00 +0000)]
[X86] Remove 'Server' from Tigerlake description comments.
Tigerlake is a client CPU not a server CPU.
llvm-svn: 368635
Akira Hatanaka [Mon, 12 Aug 2019 23:53:23 +0000 (23:53 +0000)]
Do not call replaceAllUsesWith to upgrade calls to ARC runtime functions
to intrinsic calls
This fixes a bug in r368311.
It turns out that the ARC runtime functions in the IR can have pointer
parameter types that are not i8* or i8**. Instead of RAUWing normal
functions with intrinsics, manually bitcast the arguments before passing
them to the intrinsic functions and bitcast the return value back to the
type of the original call instruction.
rdar://problem/
54125406
llvm-svn: 368634
Stanislav Mekhanoshin [Mon, 12 Aug 2019 23:32:35 +0000 (23:32 +0000)]
[AMDGPU] removed unused functions from printf lowering
Differential Revision: https://reviews.llvm.org/D66117
llvm-svn: 368633
Stephane Moore [Mon, 12 Aug 2019 23:23:35 +0000 (23:23 +0000)]
[clang] Update isDerivedFrom to support Objective-C classes 🔍
Summary:
This change updates `isDerivedFrom` to support Objective-C classes by
converting it to a polymorphic matcher.
Notes:
The matching behavior for Objective-C classes is modeled to match the
behavior of `isDerivedFrom` with C++ classes. To that effect,
`isDerivedFrom` matches aliased types of derived Objective-C classes,
including compatibility aliases. To achieve this, the AST visitor has
been updated to map compatibility aliases to their underlying
Objective-C class.
`isSameOrDerivedFrom` also provides similar behaviors for C++ and
Objective-C classes. The behavior that
`cxxRecordDecl(isSameOrDerivedFrom("X"))` does not match
`class Y {}; typedef Y X;` is mirrored for Objective-C in that
`objcInterfaceDecl(isSameOrDerivedFrom("X"))` does not match either
`@interface Y @end typedef Y X;` or
`@interface Y @end @compatibility_alias X Y;`.
Test Notes:
Ran clang unit tests.
Reviewers: aaron.ballman, jordan_rose, rjmccall, klimek, alexfh, gribozavr
Reviewed By: aaron.ballman, gribozavr
Subscribers: cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D60543
llvm-svn: 368632
Reid Kleckner [Mon, 12 Aug 2019 23:02:00 +0000 (23:02 +0000)]
[WinEH] Fix catch block parent frame pointer offset
r367088 made it so that funclets store XMM registers into their local
frame instead of storing them to the parent frame. However, that change
forgot to update the parent frame pointer offset for catch blocks. This
change does that.
Fixes crashes when an exception is rethrown in a catch block that saves
XMMs, as described in https://crbug.com/992860.
llvm-svn: 368631
Juergen Ributzka [Mon, 12 Aug 2019 23:01:07 +0000 (23:01 +0000)]
[TextAPI] Fix & Add tests for tbd files version 3.
- There was a simple typo in TextStub code that prevented version 3 files to be read.
- Included a version 3 unit test to handle the differences in the format.
- Also a typo in Error.h inside the comments.
https://reviews.llvm.org/D66041
This patch is from Cyndy Ishida <cyndy_ishida@apple.com>.
llvm-svn: 368630
Daniel Sanders [Mon, 12 Aug 2019 22:41:02 +0000 (22:41 +0000)]
[risc-v] Apply llvm-prefer-register-over-unsigned from clang-tidy to LLVM
Summary:
This clang-tidy check is looking for unsigned integer variables whose initializer
starts with an implicit cast from llvm::Register and changes the type of the
variable to llvm::Register (dropping the llvm:: where possible).
Depends on D65919
Reviewers: lenary
Subscribers: jholewinski, MatzeB, qcolombet, dschuff, jyknight, dylanmckay, sdardis, nemanjai, jvesely, wdng, nhaehnle, sbc100, jgravelle-google, kristof.beyls, hiraditya, aheejin, kbarton, fedor.sergeev, javed.absar, asb, rbar, johnrusso, simoncook, apazos, sabuasal, niosHD, jrtc27, MaskRay, zzheng, edward-jones, atanasyan, rogfer01, MartinMosbeck, brucehoult, the_o, tpr, PkmX, jocewei, jsji, Petar.Avramovic, asbirlea, Jim, s.egerton, llvm-commits
Tags: #llvm
Differential Revision for full review was: https://reviews.llvm.org/D65962
llvm-svn: 368629
Daniel Sanders [Mon, 12 Aug 2019 22:40:53 +0000 (22:40 +0000)]
[aarch64] Apply llvm-prefer-register-over-unsigned from clang-tidy to LLVM
Summary:
This clang-tidy check is looking for unsigned integer variables whose initializer
starts with an implicit cast from llvm::Register and changes the type of the
variable to llvm::Register (dropping the llvm:: where possible).
Manual fixups in:
AArch64InstrInfo.cpp - genFusedMultiply() now takes a Register* instead of unsigned*
AArch64LoadStoreOptimizer.cpp - Ternary operator was ambiguous between Register/MCRegister. Settled on Register
Depends on D65919
Reviewers: aemerson
Subscribers: jholewinski, MatzeB, qcolombet, dschuff, jyknight, dylanmckay, sdardis, nemanjai, jvesely, wdng, nhaehnle, sbc100, jgravelle-google, kristof.beyls, hiraditya, aheejin, kbarton, fedor.sergeev, javed.absar, asb, rbar, johnrusso, simoncook, apazos, sabuasal, niosHD, jrtc27, MaskRay, zzheng, edward-jones, atanasyan, rogfer01, MartinMosbeck, brucehoult, the_o, tpr, PkmX, jocewei, jsji, Petar.Avramovic, asbirlea, Jim, s.egerton, llvm-commits
Tags: #llvm
Differential Revision for full review was: https://reviews.llvm.org/D65962
llvm-svn: 368628
Daniel Sanders [Mon, 12 Aug 2019 22:40:45 +0000 (22:40 +0000)]
[webassembly] Apply llvm-prefer-register-over-unsigned from clang-tidy to LLVM
Summary:
This clang-tidy check is looking for unsigned integer variables whose initializer
starts with an implicit cast from llvm::Register and changes the type of the
variable to llvm::Register (dropping the llvm:: where possible).
Reviewers: aheejin
Subscribers: jholewinski, MatzeB, qcolombet, dschuff, jyknight, dylanmckay, sdardis, nemanjai, jvesely, wdng, nhaehnle, sbc100, jgravelle-google, kristof.beyls, hiraditya, aheejin, kbarton, fedor.sergeev, javed.absar, asb, rbar, johnrusso, simoncook, apazos, sabuasal, niosHD, jrtc27, MaskRay, zzheng, edward-jones, atanasyan, rogfer01, MartinMosbeck, brucehoult, the_o, tpr, PkmX, jocewei, jsji, Petar.Avramovic, asbirlea, Jim, s.egerton, llvm-commits
Tags: #llvm
Differential Revision for whole review: https://reviews.llvm.org/D65962
llvm-svn: 368627
Stanislav Mekhanoshin [Mon, 12 Aug 2019 22:32:21 +0000 (22:32 +0000)]
[AMDGPU] Use PredicateControl in MIMGBaseOpcode. NFC.
This is infrastructural, will be needed for future work.
For some reason it was only used in MIMG_NoSampler, while
needed everywere we use MIMGBaseOpcode if we want to use
predicates.
Differential Revision: https://reviews.llvm.org/D66115
llvm-svn: 368626
Johannes Doerfert [Mon, 12 Aug 2019 22:21:09 +0000 (22:21 +0000)]
[Attributor] Use the cached data layout directly
This removes the warning by using the new DL member.
It also simplifies the code.
llvm-svn: 368625
Whitney Tsang [Mon, 12 Aug 2019 22:20:54 +0000 (22:20 +0000)]
Title: Fix build warning for operator<< when using GCC 7.
Authored By: etiotto
Differential Revision: https://reviews.llvm.org/D63459
llvm-svn: 368624
Craig Topper [Mon, 12 Aug 2019 22:18:23 +0000 (22:18 +0000)]
[X86] Allow combineTruncateWithSat to use pack instructions for i16->i8 without AVX512BW.
We need AVX512BW to be able to truncate an i16 vector. If we don't
have that we have to extend i16->i32, then trunc, i32->i8. But we
won't be able to remove the min/max if we do that. At least not
without more special handling.
llvm-svn: 368623
Johannes Doerfert [Mon, 12 Aug 2019 22:07:34 +0000 (22:07 +0000)]
[Attributor][NFC] Add IntegerState raw_ostream << operator
llvm-svn: 368622
Johannes Doerfert [Mon, 12 Aug 2019 22:05:53 +0000 (22:05 +0000)]
[Attributor] Make the InformationCache an Attributor member
The functionality is not changed but the interfaces are simplified and
repetition is removed.
llvm-svn: 368621
Davide Italiano [Mon, 12 Aug 2019 21:49:54 +0000 (21:49 +0000)]
[CompilerType] Pass an ExecutionContextScope to GetTypeBitAlign.
llvm-svn: 368620
Mitch Phillips [Mon, 12 Aug 2019 21:36:44 +0000 (21:36 +0000)]
[GWP-ASan] Update backtrace function signature.
Summary:
Updates the function signature and comments for backtracing (and printing
backtraces). This update brings GWP-ASan in line with future requirements for
stack frame compression, wherein the length of the trace is provided
explicitly, rather than relying on nullptr-termination.
Reviewers: vlad.tsyrklevich
Reviewed By: vlad.tsyrklevich
Subscribers: #sanitizers, llvm-commits, morehouse
Tags: #sanitizers, #llvm
Differential Revision: https://reviews.llvm.org/D66099
llvm-svn: 368619
Aditya Nandakumar [Mon, 12 Aug 2019 21:28:12 +0000 (21:28 +0000)]
[GISel]: Fix a bug in KnownBits where we should have been using SizeInBits
https://reviews.llvm.org/D66039
We were using getIndexSize instead of getIndexSizeInBits().
Added test case for G_PTRTOINT and G_INTTOPTR.
llvm-svn: 368618
Max Moroz [Mon, 12 Aug 2019 20:21:27 +0000 (20:21 +0000)]
[libFuzzer] Merge: print feature coverage number as well.
Summary:
feature coverage is a useful signal that is available during the merge
process, but was not printed previously.
Output example:
```
$ ./fuzzer -use_value_profile=1 -merge=1 new_corpus/ seed_corpus/
INFO: Seed:
1676551929
INFO: Loaded 1 modules (2380 inline 8-bit counters): 2380 [0x90d180, 0x90dacc),
INFO: Loaded 1 PC tables (2380 PCs): 2380 [0x684018,0x68d4d8),
MERGE-OUTER: 180 files, 78 in the initial corpus
MERGE-OUTER: attempt 1
INFO: Seed:
1676574577
INFO: Loaded 1 modules (2380 inline 8-bit counters): 2380 [0x90d180, 0x90dacc),
INFO: Loaded 1 PC tables (2380 PCs): 2380 [0x684018,0x68d4d8),
INFO: -max_len is not provided; libFuzzer will not generate inputs larger than 1048576 bytes
MERGE-INNER: using the control file '/tmp/libFuzzerTemp.111754.txt'
MERGE-INNER: 180 total files; 0 processed earlier; will process 180 files now
#1 pulse cov: 134 ft: 330 exec/s: 0 rss: 37Mb
#2 pulse cov: 142 ft: 462 exec/s: 0 rss: 38Mb
#4 pulse cov: 152 ft: 651 exec/s: 0 rss: 38Mb
#8 pulse cov: 152 ft: 943 exec/s: 0 rss: 38Mb
#16 pulse cov: 520 ft: 2783 exec/s: 0 rss: 39Mb
#32 pulse cov: 552 ft: 3280 exec/s: 0 rss: 41Mb
#64 pulse cov: 576 ft: 3641 exec/s: 0 rss: 50Mb
#78 LOADED cov: 602 ft: 3936 exec/s: 0 rss: 88Mb
#128 pulse cov: 611 ft: 3996 exec/s: 0 rss: 93Mb
#180 DONE cov: 611 ft: 4016 exec/s: 0 rss: 155Mb
MERGE-OUTER: succesfull in 1 attempt(s)
MERGE-OUTER: the control file has 39741 bytes
MERGE-OUTER: consumed 0Mb (37Mb rss) to parse the control file
MERGE-OUTER: 9 new files with 80 new features added; 9 new coverage edges
```
Reviewers: hctim, morehouse
Reviewed By: morehouse
Subscribers: delcypher, #sanitizers, llvm-commits, kcc
Tags: #llvm, #sanitizers
Differential Revision: https://reviews.llvm.org/D66030
llvm-svn: 368617
Stella Stamenova [Mon, 12 Aug 2019 20:08:07 +0000 (20:08 +0000)]
Revert "[lldb] Refactor guard variable checks in IRForTarget"
This reverts commit
94fbbf712e906464f5f3abbeabcfcbc05d5352ec.
llvm-svn: 368616
Stella Stamenova [Mon, 12 Aug 2019 20:08:05 +0000 (20:08 +0000)]
Revert "[lldb] Fix dynamic_cast by no longer failing on variable without metadata"
This reverts commit
b448d1bf212219febbb182d00c210bad1bd25e7f.
llvm-svn: 368615
Davide Italiano [Mon, 12 Aug 2019 20:03:19 +0000 (20:03 +0000)]
[Symbol] GetTypeBitAlign() should return None in case of failure.
Summary:
And not `zero`. This is the last API needed to be converted to
an Optional<T>.
Reviewers: xiaobai, compnerd
Subscribers: lldb-commits
Tags: #lldb
Differential Revision: https://reviews.llvm.org/D66093
llvm-svn: 368614
Nico Weber [Mon, 12 Aug 2019 19:57:17 +0000 (19:57 +0000)]
Fix Wnewline-eof after r368598
llvm-svn: 368613
Juergen Ributzka [Mon, 12 Aug 2019 19:51:34 +0000 (19:51 +0000)]
Revert "Disable MachO TBD write tests for Windows."
The underlying issue was fixed in r357759.
llvm-svn: 368611
Erik Pilkington [Mon, 12 Aug 2019 19:29:43 +0000 (19:29 +0000)]
[Sema] Check __builtin_bit_cast operand for completeness before materializing it.
This shouldn't be observable, but it doesn't make sense to materialize an
incomplete type.
llvm-svn: 368610
Craig Topper [Mon, 12 Aug 2019 19:26:45 +0000 (19:26 +0000)]
[X86] Remove unreachable code from LowerTRUNCATE. NFC
All three 256->128 bit cases were already handled above.
Noticed while looking at the coverage report.
llvm-svn: 368609
Craig Topper [Mon, 12 Aug 2019 19:26:37 +0000 (19:26 +0000)]
[X86] Add a paranoia type check to the code that detects AVG patterns from truncating stores.
If we're after type legalize, we should make sure we won't create
a store with an illegal type when we separate the AVG pattern
from the truncating store.
I don't know of a way to fail for this today. Just noticed while
I was in the vicinity.
llvm-svn: 368608
Craig Topper [Mon, 12 Aug 2019 19:26:30 +0000 (19:26 +0000)]
[X86] Simplify creation of saturating truncating stores.
We just need to check if the truncating store is legal
instead of going through isSATValidOnAVX512Subtarget.
llvm-svn: 368607
Craig Topper [Mon, 12 Aug 2019 19:26:22 +0000 (19:26 +0000)]
[X86] Replace call to isTruncStoreLegalOrCustom with isTruncStoreLegal. NFC
We have no custom trunc stores on X86.
llvm-svn: 368606
Nico Weber [Mon, 12 Aug 2019 19:19:29 +0000 (19:19 +0000)]
small follow-up to r368604
llvm-svn: 368605
Nico Weber [Mon, 12 Aug 2019 19:11:23 +0000 (19:11 +0000)]
libcxxabi: Rename .hpp files to .h
LLVM uses .h as its extension for header files.
Differential Revision: https://reviews.llvm.org/D65981
llvm-svn: 368604
Dan Liew [Mon, 12 Aug 2019 18:51:25 +0000 (18:51 +0000)]
[asan_symbolize] Fix bug where the frame counter was not incremented.
Summary:
This bug occurred when a plug-in requested that a binary not be
symbolized while the script is trying to symbolize a stack frame. In
this case `self.frame_no` would not be incremented. This would cause
subsequent stack frames that are symbolized to be incorrectly numbered.
To fix this `get_symbolized_lines()` has been modified to take an
argument that indicates whether the stack frame counter should
incremented. In `process_line_posix()` `get_symbolized_lines(None, ...)`
is now used in in the case where we don't want to symbolize a line so
that we can keep the frame counter increment in a single function.
A test case is included. The test uses a dummy plugin that always asks
`asan_symbolize.py` script to not symbolize the first binary that the
script asks about. Prior to the patch this would cause the output to
script to look something like
```
#0 0x0
#0 0x0 in do_access
#1 0x0 in main
```
This is the second attempt at landing this patch. The first (r368373)
failed due to failing some android bots and so was reverted in r368472.
The new test is now disabled for Android. It turns out that the patch
also fails for iOS too so it is also disabled for that family of
platforms too.
rdar://problem/
49476995
Reviewers: kubamracek, yln, samsonov, dvyukov, vitalybuka
Subscribers: #sanitizers, llvm-commits
Tags: #llvm, #sanitizers
Differential Revision: https://reviews.llvm.org/D65495
llvm-svn: 368603
Diego Astiazaran [Mon, 12 Aug 2019 18:42:46 +0000 (18:42 +0000)]
[clang-doc] Generate HTML links for children namespaces/records
Path is now stored in the references to the child while serializing,
then this path is used to generate the relative path in the HTML
generator.
Now some references have paths and some don't so in the reducing phase,
references are now properly merged checking for empty attributes.
Tests added for HTML and YAML generators, merging and serializing.
computeRelativePath function had a bug when the filepath is part of the
given directory; it returned a path that starts with a separator. This
has been fixed.
Differential Revision: https://reviews.llvm.org/D65987
llvm-svn: 368602
Nico Weber [Mon, 12 Aug 2019 18:33:10 +0000 (18:33 +0000)]
gn build: Merge r368592
llvm-svn: 368601
Erik Pilkington [Mon, 12 Aug 2019 18:31:27 +0000 (18:31 +0000)]
[Sema] Require a complete type for __builtin_bit_cast operands
Fixes llvm.org/PR42936
llvm-svn: 368600
Louis Dionne [Mon, 12 Aug 2019 18:30:31 +0000 (18:30 +0000)]
[libc++] Implement CTAD for std::tuple
Summary:
We were using implicit deduction guides instead of explicit ones,
however the implicit ones don't do work anymore when changing the
constructors.
This commit adds the actual guides specified in the Standard to make
libc++ (1) closer to the Standard and (2) more resistent to changes
in std::tuple's constructors.
Reviewers: Quuxplusone
Subscribers: christof, jkorous, dexonsmith, libcxx-commits
Tags: #libc
Differential Revision: https://reviews.llvm.org/D65225
llvm-svn: 368599
Matthew G McGovern [Mon, 12 Aug 2019 18:08:44 +0000 (18:08 +0000)]
[builtins] MSVC warning disable for clean build
- https://reviews.llvm.org/D66023
- amended for ifdef/if gcc errors in previous verison
llvm-svn: 368598
Kang Zhang [Mon, 12 Aug 2019 17:50:01 +0000 (17:50 +0000)]
[NFC][PowerPC] Add the test case shrink-wrap.mir and shrink-wrap.ll for PPC
llvm-svn: 368597
Wenlei He [Mon, 12 Aug 2019 17:45:14 +0000 (17:45 +0000)]
[ThinLTO][AutoFDO] Fix memory corruption due to race condition from thin backends
Summary:
This commit fixed a race condition from multi-threaded thinLTO backends that causes non-deterministic memory corruption for a data structure used only by AutoFDO with compact binary profile.
GUIDToFuncNameMap, a static data member of type DenseMap in FunctionSamples is used as a per-module mapping from function name MD5 to name string when input AutoFDO profile is in compact binary format. However with ThinLTO, we can have parallel backends modifying and accessing the class static map concurrently. The fix is to make GUIDToFuncNameMap a member of SampleProfileLoader instead of a file static data.
Reviewers: wmi, davidxl, danielcdh
Subscribers: mehdi_amini, inglorion, hiraditya, dexonsmith, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D65848
llvm-svn: 368596
Roman Lebedev [Mon, 12 Aug 2019 17:45:12 +0000 (17:45 +0000)]
[CostModel][X86][AArch64] Check all 3 cost kinds in aggregates.ll
llvm-svn: 368595