Eli Friedman [Thu, 5 Sep 2019 23:40:03 +0000 (23:40 +0000)]
[AArch64] Add testcase for codegen for sdiv by 2.
llvm-svn: 371147
Matt Arsenault [Thu, 5 Sep 2019 23:39:21 +0000 (23:39 +0000)]
InstCombine: Fix crash on icmp of gep with addrspacecasted null
llvm-svn: 371146
Jonas Devlieghere [Thu, 5 Sep 2019 23:36:57 +0000 (23:36 +0000)]
[Reproducer] Add a `cont` to ModuleCXX.test
On more than one occasion I've found this test got stuck during replay
while waiting for a packet from debugserver when the debugger was in the
process of being destroyed. For some reason it's more prevalent on the
downstream Swift fork. Adding a cont mitigates the problem while I
investigate.
llvm-svn: 371144
David Blaikie [Thu, 5 Sep 2019 23:33:44 +0000 (23:33 +0000)]
llvm-reduce: Use %python from lit to get the correct/valid python binary for the reduction script
llvm-svn: 371143
Matt Arsenault [Thu, 5 Sep 2019 23:07:10 +0000 (23:07 +0000)]
AMDGPU: Fix Register copypaste error
llvm-svn: 371141
Alina Sbirlea [Thu, 5 Sep 2019 23:00:36 +0000 (23:00 +0000)]
[AliasSetTracker] Correct AAInfo check.
Properly check if NewAAInfo conflicts with AAInfo.
Update local variable and alias set that a change occured when a conflict is found.
Resolves PR42969.
llvm-svn: 371139
Vitaly Buka [Thu, 5 Sep 2019 22:49:34 +0000 (22:49 +0000)]
[SimplifyCFG] Don't SimplifyBranchOnICmpChain with ExtraCase
Summary:
Here we try to avoid issues with "explicit branch" with SimplifyBranchOnICmpChain
which can check on undef. Msan by design reports branches on uninitialized
memory and undefs, so we have false report here.
In general msan does not like when we convert
```
// If at least one of them is true we can MSAN is ok if another is undefs
if (a || b)
return;
```
into
```
// If 'a' is undef MSAN will complain even if 'b' is true
if (a)
return;
if (b)
return;
```
Example
Before optimization we had something like this:
```
while (true) {
bool maybe_undef = doStuff();
while (true) {
char c = getChar();
if (c != 10 && c != 13)
continue
break;
}
// we know that c == 10 || c == 13 if we get here,
// so msan know that branch is not affected by maybe_undef
if (maybe_undef || c == 10 || c == 13)
continue;
return;
}
```
SimplifyBranchOnICmpChain will convert that into
```
while (true) {
bool maybe_undef = doStuff();
while (true) {
char c = getChar();
if (c != 10 && c != 13)
continue;
break;
}
// however msan will complain here:
if (maybe_undef)
continue;
// we know that c == 10 || c == 13, so either way we will get continue
switch(c) {
case 10: continue;
case 13: continue;
}
return;
}
```
Reviewers: eugenis, efriedma
Reviewed By: eugenis, efriedma
Subscribers: hiraditya, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D67205
llvm-svn: 371138
Matt Arsenault [Thu, 5 Sep 2019 22:44:06 +0000 (22:44 +0000)]
AMDGPU: Avoid constructing new std::vector in initCandidate
Approximately 30% of the time was spent in the std::vector
constructor. In one testcase this pushes the scheduler to being the
second slowest pass.
I'm not sure I understand why these vector are necessary. The default
scheduler initCandidate seems to use some pre-existing vectors for the
pressure.
llvm-svn: 371136
Nico Weber [Thu, 5 Sep 2019 22:40:47 +0000 (22:40 +0000)]
gn build: Merge r371134
llvm-svn: 371135
Francis Visoiu Mistrih [Thu, 5 Sep 2019 22:35:37 +0000 (22:35 +0000)]
[Remarks] Add comparison operators to the Remark object
and related structs.
This also adds tests for the remarks::Remark object in general.
llvm-svn: 371134
Jonas Devlieghere [Thu, 5 Sep 2019 21:43:32 +0000 (21:43 +0000)]
Remove `bugreport` command
The bugreport command exists to create domain-specific bug reports.
Currently it has one implementation for filing bugs on the unwinder. As
far as we can tell, it has never been of use. Although not exactly the
same as the reproducers, it's a bit confusing to have two parallel
command trees for (kind of) the same thing.
Differential revision: https://reviews.llvm.org/D65469
llvm-svn: 371132
Sterling Augustine [Thu, 5 Sep 2019 21:35:05 +0000 (21:35 +0000)]
Add gdb pretty printers for a wide variety of libc++ data structures (take 2).
Summary:
This patch is an exact duplicate of https://reviews.llvm.org/D65609, except
that it uses the newly introduced testing framework to detect if gdb is present
so that the tests won't fail on machines without gdb.
Reviewers: echristo, EricWF
Subscribers: christof, ldionne, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D67238
llvm-svn: 371131
Sterling Augustine [Thu, 5 Sep 2019 21:34:54 +0000 (21:34 +0000)]
Don't assume libcxx_gdb is always set.
libc++abi also uses this file, but doesn't use the same CMakeLists.txt.
llvm-svn: 371130
Jan Korous [Thu, 5 Sep 2019 21:27:25 +0000 (21:27 +0000)]
[ADT] Add makeArrayRef(std::array<>) template specialization
llvm-svn: 371129
Jan Korous [Thu, 5 Sep 2019 21:26:53 +0000 (21:26 +0000)]
[Bitstream] Add BitCodeAbbrev(std::initializer_list) constructor
llvm-svn: 371128
DeForest Richards [Thu, 5 Sep 2019 21:24:47 +0000 (21:24 +0000)]
Docs: Update Community section on homepage
This commit includes the following changes: Adds a Getting Involved section under Community. Moves the Development Process section under Community. Moves Sphinx Quickstart Template and How to submit an LLVM bug report from User Guides section to Getting Involved.
llvm-svn: 371127
Vedant Kumar [Thu, 5 Sep 2019 21:24:23 +0000 (21:24 +0000)]
[libcxx] Codesign test executables if necessary
If LLVM_CODESIGNING_IDENTITY is set, test executables need to be
codesigned.
Differential Revision: https://reviews.llvm.org/D66496
llvm-svn: 371126
David Bolvansky [Thu, 5 Sep 2019 21:09:58 +0000 (21:09 +0000)]
[GSYM][NFC] Fixed -Wdocumentation warning
lib/DebugInfo/GSYM/InlineInfo.cpp:68:12: warning: parameter 'Inline' not found in the function declaration [-Wdocumentation]
llvm-svn: 371125
Nico Weber [Thu, 5 Sep 2019 21:08:50 +0000 (21:08 +0000)]
Implement Microsoft-compatible mangling for decomposition declarations.
Match cl.exe's mangling for decomposition declarations.
Decomposition declarations are considered to be anonymous structs,
and use the same convention as for anonymous struct/union declarations.
Naming confirmed to match https://godbolt.org/z/K2osJa
Patch from Eric Astor <epastor@google.com>!
Differential Revision: https://reviews.llvm.org/D67202
llvm-svn: 371124
Nico Weber [Thu, 5 Sep 2019 20:58:38 +0000 (20:58 +0000)]
gn build: Merge r371121
llvm-svn: 371123
David Bolvansky [Thu, 5 Sep 2019 20:50:48 +0000 (20:50 +0000)]
[Diagnostics] Minor improvements for -Wxor-used-as-pow
Extracted from D66397; implemented suggestion for 2^64; tests revisited.
llvm-svn: 371122
Puyan Lotfi [Thu, 5 Sep 2019 20:44:33 +0000 (20:44 +0000)]
[MIR] MIRNamer pass for improving MIR test authoring experience.
This patch reuses the MIR vreg renamer from the MIRCanonicalizerPass to cleanup
names of vregs in a MIR file for MIR test authors. I found it useful when
writing a regression test for a globalisel failure I encountered recently and
thought it might be useful for other folks as well.
Differential Revision: https://reviews.llvm.org/D67209
llvm-svn: 371121
Sterling Augustine [Thu, 5 Sep 2019 20:44:08 +0000 (20:44 +0000)]
Add testing infrastructure to check if gdb is available for testing.
Reviewers: echristo, EricWF
Subscribers: mgorny, christof, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D67194
llvm-svn: 371120
Nico Weber [Thu, 5 Sep 2019 20:38:24 +0000 (20:38 +0000)]
gn build: Merge r371117
llvm-svn: 371119
Jan Korous [Thu, 5 Sep 2019 20:33:52 +0000 (20:33 +0000)]
[clang][Index] Replace CodegenNameGenerator with ASTNameGenerator
Follow-up to:
3ff8c3b73f6,
d5d15b4c1fd
Should be NFC since the original patch just moved the code.
llvm-svn: 371117
Daniel Sanders [Thu, 5 Sep 2019 20:26:02 +0000 (20:26 +0000)]
[globalisel][knownbits] Account for missing type constraints
Now that we look through copies, it's possible to visit registers that
have a register class constraint but not a type constraint. Avoid looking
through copies when this occurs as the SrcReg won't be able to determine
it's bit width or any known bits.
Along the same lines, if the initial query is on a register that doesn't
have a type constraint then the result is a default-constructed KnownBits,
that is, a 1-bit fully-unknown value.
llvm-svn: 371116
Daniel Sanders [Thu, 5 Sep 2019 20:25:52 +0000 (20:25 +0000)]
[globalisel][knownbits] Correct a typo that prevented a test working as intended
llvm-svn: 371115
Jessica Paquette [Thu, 5 Sep 2019 20:18:34 +0000 (20:18 +0000)]
Recommit "[AArch64][GlobalISel] Teach AArch64CallLowering to handle basic sibling calls"
Recommit basic sibling call lowering (https://reviews.llvm.org/D67189)
The issue was that if you have a return type other than void, call lowering
will emit COPYs to get the return value after the call.
Disallow sibling calls other than ones that return void for now. Also
proactively disable swifterror tail calls for now, since there's a similar issue
with COPYs there.
Update call-translator-tail-call.ll to include test cases for each of these
things.
llvm-svn: 371114
Alexandre Ganea [Thu, 5 Sep 2019 20:12:20 +0000 (20:12 +0000)]
Revert: [DebugInfo] Add debug location to stubs generated by CGDeclCXX and mark them as artificial
llvm-svn: 371113
Jan Korous [Thu, 5 Sep 2019 20:04:11 +0000 (20:04 +0000)]
[AST][NFC] Doc comments for ASTNameGenerator
llvm-svn: 371112
Eli Friedman [Thu, 5 Sep 2019 20:02:38 +0000 (20:02 +0000)]
[IfConversion] Fix diamond conversion with unanalyzable branches.
The code was incorrectly counting the number of identical instructions,
and therefore tried to predicate an instruction which should not have
been predicated. This could have various effects: a compiler crash,
an assembler failure, a miscompile, or just generating an extra,
unnecessary instruction.
Instead of depending on TargetInstrInfo::removeBranch, which only
works on analyzable branches, just remove all branch instructions.
Fixes https://bugs.llvm.org/show_bug.cgi?id=43121 and
https://bugs.llvm.org/show_bug.cgi?id=41121 .
Differential Revision: https://reviews.llvm.org/D67203
llvm-svn: 371111
Sylvestre Ledru [Thu, 5 Sep 2019 19:50:56 +0000 (19:50 +0000)]
doc update: explain that Z3 is only for clang SA - thanks to LebedevRI for the suggestion
llvm-svn: 371110
Sylvestre Ledru [Thu, 5 Sep 2019 19:38:15 +0000 (19:38 +0000)]
document the LLVM_ENABLE_Z3_SOLVER option
llvm-svn: 371109
Roman Lebedev [Thu, 5 Sep 2019 19:13:15 +0000 (19:13 +0000)]
[NFC][InstCombine] Overhaul 'unsigned add overflow' tests, ensure that all 3 patterns have full test coverage
llvm-svn: 371108
Craig Topper [Thu, 5 Sep 2019 18:49:52 +0000 (18:49 +0000)]
[X86] Enable BuildSDIVPow2 for i16.
We're able to use a 32-bit ADD and CMOV here and should work
well with our other i16->i32 promotion optimizations.
llvm-svn: 371107
Francis Visoiu Mistrih [Thu, 5 Sep 2019 18:30:20 +0000 (18:30 +0000)]
[Remarks] Don't serialize metadata if a string table is not used
For YAML remarks with no string table, the mode should not affect the
output.
llvm-svn: 371106
Nico Weber [Thu, 5 Sep 2019 18:15:50 +0000 (18:15 +0000)]
gn build: Merge r371103
llvm-svn: 371105
Craig Topper [Thu, 5 Sep 2019 18:15:07 +0000 (18:15 +0000)]
[X86] Override BuildSDIVPow2 for X86.
As noted in PR43197, we can use test+add+cmov+sra to implement
signed division by a power of 2.
This is based off the similar version in AArch64, but I've
adjusted it to use target independent nodes where AArch64 uses
target specific CMP and CSEL nodes. I've also blocked INT_MIN
as the transform isn't valid for that.
I've limited this to i32 and i64 on 64-bit targets for now and only
when CMOV is supported. i8 and i16 need further investigation to be
sure they get promoted to i32 well.
I adjusted a few tests to enable cmov to demonstrate the new
codegen. I also changed twoaddr-coalesce-3.ll to 32-bit mode
without cmov to avoid perturbing the scenario that is being
set up there.
Differential Revision: https://reviews.llvm.org/D67087
llvm-svn: 371104
Jan Korous [Thu, 5 Sep 2019 18:10:29 +0000 (18:10 +0000)]
[Support] Add writeFileAtomically() to FileUtilities
Differential Revision: https://reviews.llvm.org/D66859
llvm-svn: 371103
Nico Weber [Thu, 5 Sep 2019 18:03:18 +0000 (18:03 +0000)]
gn build: (manually) merge r358706
llvm-svn: 371102
Roman Lebedev [Thu, 5 Sep 2019 17:41:02 +0000 (17:41 +0000)]
[InstCombine] foldICmpBinOp(): consider inverted check in 'unsigned sub overflow' check
A follow-up for r329011.
This may be changed to produce @llvm.sub.with.overflow in a later patch,
but for now just make things more consistent overall.
A few observations stem from this:
* There does not seem to be a similar one-instruction fold for uadd-overflow
* I'm not sure we'll want to canonicalize `B u> A` as `usub.with.overflow`,
so since the `icmp` here no longer refers to `sub`,
reconstructing `usub.with.overflow` will be problematic,
and will likely require standalone pass (similar to DivRemPairs).
https://rise4fun.com/Alive/Zqs
Name: (A - B) u> A --> B u> A
%t0 = sub i8 %A, %B
%r = icmp ugt i8 %t0, %A
=>
%r = icmp ugt i8 %B, %A
Name: (A - B) u<= A --> B u<= A
%t0 = sub i8 %A, %B
%r = icmp ule i8 %t0, %A
=>
%r = icmp ule i8 %B, %A
Name: C u< (C - D) --> C u< D
%t0 = sub i8 %C, %D
%r = icmp ult i8 %C, %t0
=>
%r = icmp ult i8 %C, %D
Name: C u>= (C - D) --> C u>= D
%t0 = sub i8 %C, %D
%r = icmp uge i8 %C, %t0
=>
%r = icmp uge i8 %C, %D
llvm-svn: 371101
Roman Lebedev [Thu, 5 Sep 2019 17:40:49 +0000 (17:40 +0000)]
[InstCombine] foldICmpBinOp(): consider inverted check in 'unsigned add overflow' check
A follow-up for r342004.
This will be changed to produce @llvm.add.with.overflow in a later patch,
but for now just make things more consistent overall.
https://rise4fun.com/Alive/qxE
Name: (Op1 + X) u< Op1 --> ~Op1 u< X
%t0 = add i8 %Op1, %X
%r = icmp ult i8 %t0, %Op1
=>
%n = xor i8 %Op1, -1
%r = icmp ult i8 %n, %X
Name: (Op1 + X) u>= Op1 --> ~Op1 u>= X
%t0 = add i8 %Op1, %X
%r = icmp uge i8 %t0, %Op1
=>
%n = xor i8 %Op1, -1
%r = icmp uge i8 %n, %X
;-------------------------------------------------------------------------------
Name: Op0 u> (Op0 + X) --> X u> ~Op0
%t0 = add i8 %Op0, %X
%r = icmp ugt i8 %Op0, %t0
=>
%n = xor i8 %Op0, -1
%r = icmp ugt i8 %X, %n
Name: Op0 u<= (Op0 + X) --> X u<= ~Op0
%t0 = add i8 %Op0, %X
%r = icmp ule i8 %Op0, %t0
=>
%n = xor i8 %Op0, -1
%r = icmp ule i8 %X, %n
llvm-svn: 371100
Roman Lebedev [Thu, 5 Sep 2019 17:40:37 +0000 (17:40 +0000)]
[InstCombine][NFC] Tests for 'unsigned sub overflow' check
----------------------------------------
Name: unsigned sub, overflow, v0
%sub = sub i8 %x, %y
%ov = icmp ugt i8 %sub, %x
=>
%agg = usub_overflow i8 %x, %y
%sub = extractvalue {i8, i1} %agg, 0
%ov = extractvalue {i8, i1} %agg, 1
Done: 1
Optimization is correct!
----------------------------------------
Name: unsigned sub, no overflow, v0
%sub = sub i8 %x, %y
%ov = icmp ule i8 %sub, %x
=>
%agg = usub_overflow i8 %x, %y
%sub = extractvalue {i8, i1} %agg, 0
%not.ov = extractvalue {i8, i1} %agg, 1
%ov = xor %not.ov, -1
Done: 1
Optimization is correct!
llvm-svn: 371099
Roman Lebedev [Thu, 5 Sep 2019 17:40:28 +0000 (17:40 +0000)]
[InstCombine][NFC] Tests for 'unsigned add overflow' check
----------------------------------------
Name: unsigned add, overflow, v0
%add = add i8 %x, %y
%ov = icmp ult i8 %add, %x
=>
%agg = uadd_overflow i8 %x, %y
%add = extractvalue {i8, i1} %agg, 0
%ov = extractvalue {i8, i1} %agg, 1
Done: 1
Optimization is correct!
----------------------------------------
Name: unsigned add, overflow, v1
%add = add i8 %x, %y
%ov = icmp ult i8 %add, %y
=>
%agg = uadd_overflow i8 %x, %y
%add = extractvalue {i8, i1} %agg, 0
%ov = extractvalue {i8, i1} %agg, 1
Done: 1
Optimization is correct!
----------------------------------------
Name: unsigned add, no overflow, v0
%add = add i8 %x, %y
%ov = icmp uge i8 %add, %x
=>
%agg = uadd_overflow i8 %x, %y
%add = extractvalue {i8, i1} %agg, 0
%not.ov = extractvalue {i8, i1} %agg, 1
%ov = xor %not.ov, -1
Done: 1
Optimization is correct!
----------------------------------------
Name: unsigned add, no overflow, v1
%add = add i8 %x, %y
%ov = icmp uge i8 %add, %y
=>
%agg = uadd_overflow i8 %x, %y
%add = extractvalue {i8, i1} %agg, 0
%not.ov = extractvalue {i8, i1} %agg, 1
%ov = xor %not.ov, -1
Done: 1
Optimization is correct!
llvm-svn: 371098
Cyndy Ishida [Thu, 5 Sep 2019 17:33:44 +0000 (17:33 +0000)]
[TextAPI] update interface file for filtered iter
Summary:
This is a simple change that allows easy iterator semantics for symbols held in interface file.
Not being used, so harmless change right now, but will be once TBD-v4 is submitted.
Reviewers: ributzka, steven_wu
Reviewed By: ributzka
Subscribers: javed.absar, kristof.beyls, dexonsmith, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D67204
llvm-svn: 371097
DeForest Richards [Thu, 5 Sep 2019 17:30:52 +0000 (17:30 +0000)]
Docs: Move Documentation sections to separate pages.
Updates the links on the homepage by moving the User Guides, Programming Documentation, and Subsystem Documentation sections to separate pages. Also changes "Overview" to "About" at the top of the LLVM Docs homepage. This work is part of the Google Season of Docs project.
llvm-svn: 371096
Sanjay Patel [Thu, 5 Sep 2019 17:28:17 +0000 (17:28 +0000)]
[x86] fix horizontal math bug exposed by improved demanded elements analysis (PR43225)
https://bugs.llvm.org/show_bug.cgi?id=43225
llvm-svn: 371095
Craig Topper [Thu, 5 Sep 2019 17:24:34 +0000 (17:24 +0000)]
[X86] Add a FIXME about why the CWD/CDQ/CQO have a bogus implicit def of the A register. NFC
The instructions copy the sign bit of the A register to every bit
of the D register. But they don't write to the A register.
llvm-svn: 371094
Craig Topper [Thu, 5 Sep 2019 17:24:25 +0000 (17:24 +0000)]
[X86] Remove unneeded CHECK lines from a test. NFC
llvm-svn: 371093
Craig Topper [Thu, 5 Sep 2019 17:24:15 +0000 (17:24 +0000)]
[X86] Fix stale comment. NFC
We aren't checking for a concat here. We're just always splitting
256-bit stores.
llvm-svn: 371092
Nico Weber [Thu, 5 Sep 2019 17:22:55 +0000 (17:22 +0000)]
gn build: (manually) merge r371003
llvm-svn: 371091
Adrian McCarthy [Thu, 5 Sep 2019 17:22:30 +0000 (17:22 +0000)]
Fix windows-x86-debug compilation with python enabled using multi-target generator
[Patch by Leonid Mashinskiy]
Visual Studio CMake generator is multi-target and does not define
CMAKE_BUILD_TYPE, so Debug build on VS was failing due selection of release
python library. This patch reverts back some of latest changes and fixes
building by raw VS using CMake expression generators.
Differential Revision: https://reviews.llvm.org/D66994
llvm-svn: 371090
Denis Bakhvalov [Thu, 5 Sep 2019 17:00:32 +0000 (17:00 +0000)]
[MergedLoadStoreMotion] Sink stores to BB with more than 2 predecessors
If we have:
bb5:
br i1 %arg3, label %bb6, label %bb7
bb6:
%tmp = getelementptr inbounds i32, i32* %arg1, i64 2
store i32 3, i32* %tmp, align 4
br label %bb9
bb7:
%tmp8 = getelementptr inbounds i32, i32* %arg1, i64 2
store i32 3, i32* %tmp8, align 4
br label %bb9
bb9: ; preds = %bb4, %bb6, %bb7
...
We can't sink stores directly into bb9.
This patch creates new BB that is successor of %bb6 and %bb7
and sinks stores into that block.
SplitFooterBB is the parameter to the pass that controls
that behavior.
Change-Id: I7fdf50a772b84633e4b1b860e905bf7e3e29940f
Differential: https://reviews.llvm.org/D66234
llvm-svn: 371089
Sanjay Patel [Thu, 5 Sep 2019 16:58:18 +0000 (16:58 +0000)]
[x86] add test for horizontal math bug (PR43225); NFC
llvm-svn: 371088
Alina Sbirlea [Thu, 5 Sep 2019 16:58:15 +0000 (16:58 +0000)]
[MemorySSA] Verify MSSAUpdater exists.
llvm-svn: 371087
Hiroshi Yamauchi [Thu, 5 Sep 2019 16:56:55 +0000 (16:56 +0000)]
[PGO][CHR] Speed up following long, interlinked use-def chains.
Summary:
Avoid visiting an instruction more than once by using a map.
This is similar to https://reviews.llvm.org/rL361416.
Reviewers: davidxl
Reviewed By: davidxl
Subscribers: llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D67198
llvm-svn: 371086
Fangrui Song [Thu, 5 Sep 2019 16:32:31 +0000 (16:32 +0000)]
[ELF] Initialize PhdrEntry::p_align to maxPageSize for PT_LOAD
```
Writer<ELFT>::run
assignFileOffsets
setFileOffset
computeFileOffset
os->ptLoad->p_align may be smaller than config->maxPageSize
setPhdrs
p_align = max(p_align, config->maxPageSize)
```
If we move the config->maxPageSize logic to the constructor of
PhdrEntry, computeFileOffset can be simplified.
Reviewed By: ruiu
Differential Revision: https://reviews.llvm.org/D67211
llvm-svn: 371085
Alina Sbirlea [Thu, 5 Sep 2019 16:25:24 +0000 (16:25 +0000)]
[MemorySSA] Update MemorySSA when removing debug.value calls.
llvm-svn: 371084
Krzysztof Parzyszek [Thu, 5 Sep 2019 16:19:47 +0000 (16:19 +0000)]
[Hexagon] Fix type in HexagonTargetLowering::ReplaceNodeResults
llvm-svn: 371083
Guillaume Chatelet [Thu, 5 Sep 2019 15:44:33 +0000 (15:44 +0000)]
[Alignment][NFC] Change internal representation of TargetLowering.h
Summary:
This is patch is part of a series to introduce an Alignment type.
See this thread for context: http://lists.llvm.org/pipermail/llvm-dev/2019-July/133851.html
See this patch for the introduction of the type: https://reviews.llvm.org/D64790
Reviewers: courbet
Subscribers: hiraditya, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D67226
llvm-svn: 371082
Ilya Biryukov [Thu, 5 Sep 2019 15:30:05 +0000 (15:30 +0000)]
[clangd] Initialize int field to zero. NFC
To make sure we do not have uninitialized values and undefined behavior.
llvm-svn: 371081
Alexandre Ganea [Thu, 5 Sep 2019 15:24:49 +0000 (15:24 +0000)]
[DebugInfo] Add debug location to stubs generated by CGDeclCXX and mark them as artificial
Differential Revision: https://reviews.llvm.org/D66328
llvm-svn: 371080
David Candler [Thu, 5 Sep 2019 15:17:25 +0000 (15:17 +0000)]
[ARM] Add support for the s,j,x,N,O inline asm constraints
A number of inline assembly constraints are currently supported by LLVM, but rejected as invalid by Clang:
Target independent constraints:
s: An integer constant, but allowing only relocatable values
ARM specific constraints:
j: An immediate integer between 0 and 65535 (valid for MOVW)
x: A 32, 64, or 128-bit floating-point/SIMD register: s0-s15, d0-d7, or q0-q3
N: An immediate integer between 0 and 31 (Thumb1 only)
O: An immediate integer which is a multiple of 4 between -508 and 508. (Thumb1 only)
This patch adds support to Clang for the missing constraints along with some checks to ensure that the constraints are used with the correct target and Thumb mode, and that immediates are within valid ranges (at least where possible). The constraints are already implemented in LLVM, but just a couple of minor corrections to checks (V8M Baseline includes MOVW so should work with 'j', 'N' and 'O' shouldn't be valid in Thumb2) so that Clang and LLVM are in line with each other and the documentation.
Differential Revision: https://reviews.llvm.org/D65863
Change-Id: I18076619e319bac35fbb60f590c069145c9d9a0a
llvm-svn: 371079
Simon Pilgrim [Thu, 5 Sep 2019 15:07:07 +0000 (15:07 +0000)]
[X86][SSE] EltsFromConsecutiveLoads - ignore non-zero offset base loads (PR43227)
As discussed on D64551 and PR43227, we don't correctly handle cases where the base load has a non-zero byte offset.
Until we can properly handle this, we must bail from EltsFromConsecutiveLoads.
llvm-svn: 371078
Raphael Isemann [Thu, 5 Sep 2019 14:51:23 +0000 (14:51 +0000)]
[lldb][NFC] Add dimensions to pexpect tests failing on sanitizer bot
I'm still unable to reproduce this locally, so let's see if this
is enough to make the bots happy. The missing dimension parameter
seems to be the biggest difference between these tests and
TestIOHandlerCompletion.py which runs just fine on the same bot,
so that's the motivation for trying this out.
llvm-svn: 371077
Alexander Kornienko [Thu, 5 Sep 2019 14:48:31 +0000 (14:48 +0000)]
[clang-tidy] Make most ArgumentCommentCheck options local, as they should be
llvm-svn: 371076
Alexander Kornienko [Thu, 5 Sep 2019 14:48:23 +0000 (14:48 +0000)]
Add a bugprone-argument-comment option: IgnoreSingleArgument.
Summary:
Add bugprone-argument-comment option: IgnoreSingleArgument.
When true, the check will ignore the single argument.
Sometimes, it's not necessary to add comment to single argument.
For example:
> std::string name("Yubo Xie");
> pScreen->SetWidth(1920);
> pScreen->SetHeight(1080);
This option can ignore such single argument in bugprone-argument-comment check.
Reviewers: alexfh
Reviewed By: alexfh
Subscribers: cfe-commits
Tags: #clang
Patch by Yubo Xie.
Differential Revision: https://reviews.llvm.org/D67056
llvm-svn: 371075
Fangrui Song [Thu, 5 Sep 2019 14:25:57 +0000 (14:25 +0000)]
[yaml2obj] Write the section header table after section contents
Linkers (ld.bfd/gold/lld) place the section header table at the very
end. This allows tools to strip it, which is optional in executable/shared objects.
In addition, if we add or section, the size of the section header table
will change. Placing the section header table in the end keeps section
offsets unchanged.
yaml2obj currently places the section header table immediately after the
program header. Follow what linkers do to make offset updating easier.
Reviewed By: grimar
Differential Revision: https://reviews.llvm.org/D67221
llvm-svn: 371074
Guillaume Chatelet [Thu, 5 Sep 2019 14:17:08 +0000 (14:17 +0000)]
[LLVM][Alignment][NFC] Fixing wrong documentation
llvm-svn: 371073
Alexander Kornienko [Thu, 5 Sep 2019 14:13:57 +0000 (14:13 +0000)]
[clang-tidy] Fix bugprone-argument-comment bug: negative literal number is not checked.
Summary:
For example:
```
void foo(int a);
foo(-2);
```
should be fixed as:
```
foo(/*a=*/-2);
```
This change tries to fix this issue.
Reviewers: alexfh, hokein, aaron.ballman
Reviewed By: alexfh, aaron.ballman
Subscribers: xazax.hun, cfe-commits
Tags: #clang, #clang-tools-extra
Patch by Yubo Xie.
Differential Revision: https://reviews.llvm.org/D67084
llvm-svn: 371072
George Rimar [Thu, 5 Sep 2019 14:02:58 +0000 (14:02 +0000)]
[llvm-readelf] - Allow dumping dynamic symbols when there is no program headers.
D62179 introduced a regression. llvm-readelf lose the ability to dump the dynamic symbols
when there is .dynamic section with a DT_SYMTAB, but there are no program headers:
https://reviews.llvm.org/D62179#1652778
Below is a program flow before the D62179 change:
1) Find SHT_DYNSYM.
2) Find there is no PT_DYNAMIC => don't try to parse it.
3) Print dynamic symbols using information about them found on step (1).
And after the change it became:
1) Find SHT_DYNSYM.
2) Find there is no PT_DYNAMIC => find SHT_DYNAMIC.
3) Parse dynamic table, but fail to handle the DT_SYMTAB because of the absence of the PT_LOAD. Report the "Virtual address is not in any segment" error.
This patch fixes the issue. For doing this it checks that the value of DT_SYMTAB was
mapped to a segment. If not - it ignores it.
Differential revision: https://reviews.llvm.org/D67078
llvm-svn: 371071
Louis Dionne [Thu, 5 Sep 2019 13:50:28 +0000 (13:50 +0000)]
[libc++] Revert "Make `vector` unconditionally move elements when exceptions are disabled."
This reverts r370502, which broke the use case of a copy-only T (with a
deleted move constructor) when exceptions are disabled. Until we figure
out the right behavior, I'm reverting the commit.
llvm-svn: 371068
Louis Dionne [Thu, 5 Sep 2019 13:50:18 +0000 (13:50 +0000)]
[libc++] Add a test for resizing of a vector with copy-only elements
See https://reviews.llvm.org/D62228#1658620
llvm-svn: 371067
Justin Hibbits [Thu, 5 Sep 2019 13:38:46 +0000 (13:38 +0000)]
Add -m(no)-spe to clang
Summary:
r337347 added support for the Signal Processing Engine (SPE) to LLVM.
This follows that up with the clang side.
This adds -mspe and -mno-spe, to match GCC.
Subscribers: nemanjai, kbarton, cfe-commits
Differential Revision: https://reviews.llvm.org/D49754
llvm-svn: 371066
Simon Atanasyan [Thu, 5 Sep 2019 13:37:16 +0000 (13:37 +0000)]
[mips] Make a few test cases more tolerant to exact symbol addresses. NFC
llvm-svn: 371065
David Green [Thu, 5 Sep 2019 13:37:04 +0000 (13:37 +0000)]
[ARM] Fixup the creation of VPT blocks
This attempts to just fix the creation of VPT blocks, fixing up the iterating,
which instructions are considered in the bundle, and making sure that we do not
overrun the end of the block.
Differential Revision: https://reviews.llvm.org/D67219
llvm-svn: 371064
Guillaume Chatelet [Thu, 5 Sep 2019 13:09:42 +0000 (13:09 +0000)]
[LLVM][Alignment] Convert isLegalNTStore/isLegalNTLoad to llvm::Align
Summary:
This is patch is part of a serie to introduce an Alignment type.
See this thread for context: http://lists.llvm.org/pipermail/llvm-dev/2019-July/133851.html
See this patch for the introduction of the type: https://reviews.llvm.org/D64790
Reviewers: courbet
Subscribers: hiraditya, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D67223
llvm-svn: 371063
Simon Pilgrim [Thu, 5 Sep 2019 12:36:11 +0000 (12:36 +0000)]
[X86][SSE] Add (failing) test case for PR43227
llvm-svn: 371061
Petar Avramovic [Thu, 5 Sep 2019 11:20:32 +0000 (11:20 +0000)]
[MIPS GlobalISel] Select G_FENCE
G_FENCE comes form fence instruction. For MIPS fence is generated in
AtomicExpandPass when atomic instruction gets surrounded with fence
instruction when needed.
G_FENCE arguments don't have LLT, because of that there is no job for
legalizer and regbankselect. Instruction select G_FENCE for MIPS32.
Differential Revision: https://reviews.llvm.org/D67181
llvm-svn: 371056
Petar Avramovic [Thu, 5 Sep 2019 11:16:37 +0000 (11:16 +0000)]
[MIPS GlobalISel] Select llvm.trap intrinsic
Select G_INTRINSIC_W_SIDE_EFFECTS for Intrinsic::trap for MIPS32
via legalizeIntrinsic.
Differential Revision: https://reviews.llvm.org/D67180
llvm-svn: 371055
Petar Avramovic [Thu, 5 Sep 2019 11:12:01 +0000 (11:12 +0000)]
[MIPS GlobalISel] Lower SRet pointer arguments
Instead of returning structure by value clang usually adds pointer
to that structure as an argument. Pointers don't require special
handling no matter the SRet flag. Remove unsuccessful exit from
lowerCall for arguments with SRet flag if they are pointers.
Differential Revision: https://reviews.llvm.org/D67179
llvm-svn: 371054
Simon Pilgrim [Thu, 5 Sep 2019 10:38:39 +0000 (10:38 +0000)]
Revert rL370996 from llvm/trunk: [AArch64][GlobalISel] Teach AArch64CallLowering to handle basic sibling calls
This adds support for basic sibling call lowering in AArch64. The intent here is
to only handle tail calls which do not change the ABI (hence, sibling calls.)
At this point, it is very restricted. It does not handle
- Vararg calls.
- Calls with outgoing arguments.
- Calls whose calling conventions differ from the caller's calling convention.
- Tail/sibling calls with BTI enabled.
This patch adds
- `AArch64CallLowering::isEligibleForTailCallOptimization`, which is equivalent
to the same function in AArch64ISelLowering.cpp (albeit with the restrictions
above.)
- `mayTailCallThisCC` and `canGuaranteeTCO`, which are identical to those in
AArch64ISelLowering.cpp.
- `getCallOpcode`, which is exactly what it sounds like.
Tail/sibling calls are lowered by checking if they pass target-independent tail
call positioning checks, and checking if they satisfy
`isEligibleForTailCallOptimization`. If they do, then a tail call instruction is
emitted instead of a normal call. If we have a sibling call (which is always the
case in this patch), then we do not emit any stack adjustment operations. When
we go to lower a return, we check if we've already emitted a tail call. If so,
then we skip the return lowering.
For testing, this patch
- Adds call-translator-tail-call.ll to test which tail calls we currently lower,
which ones we don't, and which ones we shouldn't.
- Updates branch-target-enforcement-indirect-calls.ll to show that we fall back
as expected.
Differential Revision: https://reviews.llvm.org/D67189
........
This fails on EXPENSIVE_CHECKS builds due to a -verify-machineinstrs test failure in CodeGen/AArch64/dllimport.ll
llvm-svn: 371051
Simon Pilgrim [Thu, 5 Sep 2019 10:26:38 +0000 (10:26 +0000)]
[X86] X86SpeculativeLoadHardeningPass::canHardenRegister - fix out of bounds warning.
Fixes clang static-analyzer warning.
llvm-svn: 371050
Jonas Paulsson [Thu, 5 Sep 2019 10:20:05 +0000 (10:20 +0000)]
[SystemZ] Recognize INLINEASM_BR in backend
Handle the remaining cases also by handling asm goto in
SystemZInstrInfo::getBranchInfo().
Review: Ulrich Weigand
https://reviews.llvm.org/D67151
llvm-svn: 371048
Simon Pilgrim [Thu, 5 Sep 2019 10:18:24 +0000 (10:18 +0000)]
[X86] X86InstrInfo::optimizeCompareInstr - fix potential null dereference.
Fixes clang static-analyzer warning.
Technically the MachineInstr *Sub might still be null if we're comparing zero (IsCmpZero == true), although this probably won't happen as SrcReg2 is probably == 0.
llvm-svn: 371047
Sven van Haastregt [Thu, 5 Sep 2019 10:01:24 +0000 (10:01 +0000)]
[OpenCL] Add image type handling for builtins
Image types were previously available, but not working. This patch
adds image type handling.
Rename the image type definitions in the .td file to make them
consistent with other type names. Use abstract types to represent the
unqualified types. Instantiate access-qualified image types at the
point of use using, e.g. `ImageType<Image2d, "RO">`.
Add/update TableGen definitions for the read_image/write_image
builtin functions.
Patch by Pierre Gondois and Sven van Haastregt.
Differential Revision: https://reviews.llvm.org/D63480
llvm-svn: 371046
Guillaume Chatelet [Thu, 5 Sep 2019 10:00:22 +0000 (10:00 +0000)]
[LLVM][Alignment] Make functions using log of alignment explicit
Summary:
This patch renames functions that takes or returns alignment as log2, this patch will help with the transition to llvm::Align.
The renaming makes it explicit that we deal with log(alignment) instead of a power of two alignment.
A few renames uncovered dubious assignments:
- `MirParser`/`MirPrinter` was expecting powers of two but `MachineFunction` and `MachineBasicBlock` were using deal with log2(align). This patch fixes it and updates the documentation.
- `MachineBlockPlacement` exposes two flags (`align-all-blocks` and `align-all-nofallthru-blocks`) supposedly interpreted as power of two alignments, internally these values are interpreted as log2(align). This patch updates the documentation,
- `MachineFunctionexposes` exposes `align-all-functions` also interpreted as power of two alignment, internally this value is interpreted as log2(align). This patch updates the documentation,
Reviewers: lattner, thegameg, courbet
Subscribers: dschuff, arsenm, jyknight, dylanmckay, sdardis, nemanjai, jvesely, nhaehnle, javed.absar, hiraditya, kbarton, fedor.sergeev, asb, rbar, johnrusso, simoncook, apazos, sabuasal, niosHD, jrtc27, MaskRay, zzheng, edward-jones, atanasyan, rogfer01, MartinMosbeck, brucehoult, the_o, dexonsmith, PkmX, jocewei, jsji, Jim, s.egerton, llvm-commits, courbet
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D65945
llvm-svn: 371045
Dmitri Gribenko [Thu, 5 Sep 2019 09:48:39 +0000 (09:48 +0000)]
[libclang] Refactored SharedParsedRegionsStorage
Summary:
Removed the `PPRegionSetTy` typedef because it is only used 3 times, and
obscures code more than it helps.
Renamed SharedParsedRegionsStorage to ThreadSafeParsedRegions, because
that better reflects the reason for this type to exist.
Replaced the `copyTo()` method that had an out parameter with a getter.
Renamed the `merge()` method to `addParsedRegions()`.
Renamed `ParsedSrcLocationsTracker::ParsedRegions` to
`ParsedRegionsSnapshot`, which better reflects its role.
Subscribers: arphaman, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D67077
llvm-svn: 371041
Russell Gallop [Thu, 5 Sep 2019 09:26:04 +0000 (09:26 +0000)]
Fix time-trace breaking flame graph assumptions
-ftime-trace could break flame-graph assumptions on Windows, with an
inner scope overrunning outer scopes. This was due to the way that times
were truncated. Changed this so time_points for the flame-graph are
truncated instead of durations, preserving the relative order of event
starts and ends.
I have tried to retain the extra precision for the totals, which count
thousands or millions of events.
Added assert to check this property holds in future.
Fixes PR43043
Differential Revision: https://reviews.llvm.org/D66411
llvm-svn: 371039
Haojian Wu [Thu, 5 Sep 2019 09:26:03 +0000 (09:26 +0000)]
[clangd][vscode] Add a flag to enable semantic highlighting in clangd
Reviewers: ilya-biryukov
Subscribers: MaskRay, jkorous, arphaman, kadircet, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D67096
llvm-svn: 371038
Haojian Wu [Thu, 5 Sep 2019 09:14:04 +0000 (09:14 +0000)]
[clangd][vscode] Make SemanticHighlightingFeature more self-contained.
Summary:
so that we don't have too many usage from the client side (just a single
occurrance for register), this also aligns with how other builtin feature
being implemented in vscode.
Reviewers: ilya-biryukov
Subscribers: MaskRay, jkorous, arphaman, kadircet, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D67165
llvm-svn: 371036
Hans Wennborg [Thu, 5 Sep 2019 09:07:05 +0000 (09:07 +0000)]
Win: handle \\?\UNC\ prefix in realPathFromHandle (PR43204)
After r361885, realPathFromHandle() ends up getting called on the working
directory on each Clang invocation. This unveiled that the code didn't work for
paths on network shares.
For example, if one maps the local dir c:\src\tmp to x:
net use x: \\localhost\c$\tmp
and run e.g. "clang -c foo.cc" in x:\, realPathFromHandle will get
\\?\UNC\localhost\c$\src\tmp\ back from GetFinalPathNameByHandleW, and would
strip off the initial \\?\ prefix, ending up with a path that doesn't work.
This patch makes the prefix stripping a little smarter to handle this case.
Differential revision: https://reviews.llvm.org/D67166
llvm-svn: 371035
George Rimar [Thu, 5 Sep 2019 08:59:28 +0000 (08:59 +0000)]
[lib/ObjectYAML] - Cleanup the private interface of ELFState<ELFT>. NFCI.
In D62809 I accidentally added "ELFState<ELFT> &State" as the
first parameter to two methods. There is no reason for having that.
I removed this argument and also moved finalizeStrings declaration to
remove an excessive 'private:' tag.
Differential revision: https://reviews.llvm.org/D67157
llvm-svn: 371033
Ilya Biryukov [Thu, 5 Sep 2019 08:59:06 +0000 (08:59 +0000)]
[Sema] Refactor LookupVisibleDecls. NFC
Summary:
We accumulated some configuration parameters for LookupVisibleDecls that
are being passed unchanged to recursive calls, e.g. LoadExternal and
IncludeDependentBases.
At the same time, there is a bunch of parameters that can change in the
recursive invocations.
It is hard to tell the difference between those groups, making the code
hard to follow.
This change introduces a helper struct and factors out the non-changing
bits into fields, making recursive calls in the implementation code easier
to read.
Reviewers: sammccall
Reviewed By: sammccall
Subscribers: riccibruno, doug.gregor, jkorous, arphaman, kadircet, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D65752
llvm-svn: 371032
George Rimar [Thu, 5 Sep 2019 08:52:26 +0000 (08:52 +0000)]
Recommit r371023 "[lib/ObjectYAML] - Stop calling error(1) when mapping the st_other field of a symbol."
Fix: added missing return "return 0;"
Original commit message:
This eliminates one of the error(1) call in this lib.
It is different from the others because happens on a fields mapping stage
and can be easily fixed.
Differential revision: https://reviews.llvm.org/D67150
llvm-svn: 371030
Raphael Isemann [Thu, 5 Sep 2019 08:45:20 +0000 (08:45 +0000)]
[lldb][NFC] Stabilize gui/basic test by waiting on prompt
We should wait on the GUI to exit before tearing down the test.
llvm-svn: 371028
Hans Wennborg [Thu, 5 Sep 2019 08:43:00 +0000 (08:43 +0000)]
Revert r361885 "[Driver] Fix -working-directory issues"
This made clang unable to open files using relative paths on network shares on
Windows (PR43204). On the bug it was pointed out that createPhysicalFileSystem()
is not terribly mature, and using it is risky. Reverting for now until there's
a clear way forward.
> Currently the `-working-directory` option does not actually impact the working
> directory for all of the clang driver, it only impacts how files are looked up
> to make sure they exist. This means that that clang passes the wrong paths
> to -fdebug-compilation-dir and -coverage-notes-file.
>
> This patch fixes that by changing all the places in the driver where we convert
> to absolute paths to use the VFS, and then calling setCurrentWorkingDirectory on
> the VFS. This also changes the default VFS for `Driver` to use a virtualized
> working directory, instead of changing the process's working directory.
>
> Differential Revision: https://reviews.llvm.org/D62271
This also revertes the part of r369938 which checked that -working-directory works.
llvm-svn: 371027
George Rimar [Thu, 5 Sep 2019 08:39:44 +0000 (08:39 +0000)]
Revert r371023 "[lib/ObjectYAML] - Stop calling error(1) when mapping the st_other field of a symbol." (2)
Forgot to revert the cpp file.
llvm-svn: 371025
George Rimar [Thu, 5 Sep 2019 08:38:29 +0000 (08:38 +0000)]
Revert r371023 "[lib/ObjectYAML] - Stop calling error(1) when mapping the st_other field of a symbol."
It broke BBots:
http://lab.llvm.org:8011/builders/lld-x86_64-darwin13/builds/36387/steps/build_Lld/logs/stdio
http://lab.llvm.org:8011/builders/clang-x86_64-debian-fast/builds/17117/steps/test/logs/stdio
llvm-svn: 371024
George Rimar [Thu, 5 Sep 2019 08:28:43 +0000 (08:28 +0000)]
[lib/ObjectYAML] - Stop calling error(1) when mapping the st_other field of a symbol.
This eliminates one of the error(1) call in this lib.
It is different from the others because happens on a fields mapping stage
and can be easily fixed.
Differential revision: https://reviews.llvm.org/D67150
llvm-svn: 371023