Alex Langford [Wed, 8 Jan 2020 23:35:21 +0000 (15:35 -0800)]
[lldb] Remove various dead Compare functions
Zheng Chen [Thu, 9 Jan 2020 01:54:15 +0000 (20:54 -0500)]
[PowerPC] when folding rlwinm+rlwinm. to andi., we should use first rlwinm
input reg.
%2:gprc = RLWINM %1:gprc, 27, 5, 10
%3:gprc = RLWINM_rec %2:gprc, 8, 5, 10, implicit-def $cr0
==>
%3:gprc = ANDI_rec %1, 0, implicit-def $cr0
we should use %1 instead of %2 as ANDI_rec input.
Reviewed By: steven.zhang
Differential Revision: https://reviews.llvm.org/D71885
Mircea Trofin [Thu, 9 Jan 2020 01:42:23 +0000 (17:42 -0800)]
Revert "[NFC][InlineCost] Factor cost modeling out of CallAnalyzer traversal."
This reverts commit
76aab66d34446ccf764cf8127b73e1517df75fb4.
Failure:
http://lab.llvm.org:8011/builders/clang-with-thin-lto-ubuntu/builds/20562,
will investigate and resubmit.
Johannes Doerfert [Tue, 7 Jan 2020 22:01:57 +0000 (16:01 -0600)]
[Attributor][FIX] Carefully change invokes to calls (after manifest)
Before we manually inserted unreachable early but that could lead to
broken PHI nodes. Now we use the existing late modification
functionality.
Johannes Doerfert [Tue, 7 Jan 2020 21:10:30 +0000 (15:10 -0600)]
[Attributor][FIX] Avoid dangling value pointers during code modification
When we replace instructions with unreachable we delete instructions. We
now avoid dangling pointers to those deleted instructions in the
`ToBeChangedToUnreachableInsts` set. Other modification collections
might need to be updated in the future as well.
Mircea Trofin [Thu, 9 Jan 2020 01:11:23 +0000 (17:11 -0800)]
[NFC][InlineCost] Factor cost modeling out of CallAnalyzer traversal.
Summary:
The goal is to simplify experimentation on the cost model. Today,
CallAnalyzer decides 2 things: legality, and benefit. The refactoring
keeps legality assessment in CallAnalyzer, and factors benefit
evaluation out, as an extension.
Reviewers: davidxl, eraman
Subscribers: kamleshbhalui, fedor.sergeev, hiraditya, baloghadamsoftware, haicheng, a.sidorin, Szelethus, donat.nagy, dkrupp, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D71733
Justin Hibbits [Mon, 30 Dec 2019 21:09:39 +0000 (15:09 -0600)]
[PowerPC]: Add powerpcspe target triple subarch component
Summary:
This allows the use of '-target powerpcspe-unknown-linux-gnu' or
'powerpcspe-unknown-freebsd' to be used, instead of
'-target powerpc-unknown-linux-gnu -mspe'.
Reviewed By: dim
Differential Revision: https://reviews.llvm.org/D72014
Jonas Paulsson [Tue, 19 Nov 2019 11:34:49 +0000 (12:34 +0100)]
Recommit "[MachineVerifier] Improve verification of live-in lists."
MachineVerifier::visitMachineFunctionAfter() is extended to check the
live-through case for live-in lists. This is only done for registers without
aliases and that are neither allocatable or reserved, such as the SystemZ::CC
register.
The MachineVerifier earlier only catched the case of a live-in use without an
entry in the live-in list (as "using an undefined physical register").
A comment in LivePhysRegs.h has been added stating a guarantee that
addLiveOuts() can be trusted for a full register both before and after
register allocation.
Review: Quentin Colombet
Differential Revision: https://reviews.llvm.org/D68267
Billy Robert O'Neal III [Thu, 9 Jan 2020 00:46:55 +0000 (16:46 -0800)]
[libcxx] [test] Disable refwrap/weak_result.pass.cpp in C++20 mode (broken by P0357R3)
Gabor Horvath [Thu, 9 Jan 2020 00:37:46 +0000 (16:37 -0800)]
[NFC] Whitespace fixes
Jonas Paulsson [Wed, 11 Dec 2019 20:45:53 +0000 (21:45 +0100)]
[X86] Remove EFLAGS from live-in lists in X86FlagsCopyLowering.
When EFLAGS is no longer live into a basic block, remove it from the live-in
list.
Fixes https://bugs.llvm.org/show_bug.cgi?id=44462.
Review: Craig Topper
Differential Revision: https://reviews.llvm.org/D71375
Jonas Devlieghere [Thu, 9 Jan 2020 00:13:03 +0000 (16:13 -0800)]
[lldb/SWIG] Refactor extensions to be non Python-specific (2/2)
The current SWIG extensions for the string conversion operator is Python
specific because it uses the PythonObjects. This means that the code
cannot be reused for other SWIG supported languages such as Lua.
This reimplements the extensions in a more generic way that can be
reused. It uses a SWIG macro to reduce code duplication.
Differential revision: https://reviews.llvm.org/D72377
Fangrui Song [Wed, 8 Jan 2020 23:44:35 +0000 (15:44 -0800)]
[cfi][test] cross-dso/stats.cpp: don't assume the order of static constructors
__sanitizer_stat_init is called for the executable first, then the
shared object. In WriterModuleReport(), the information for the shared
object will be recorded first. It'd be nice to get rid of the order
requirement of static constructors. (This should make .ctors platforms
work.)
Ahmed Taei [Wed, 8 Jan 2020 20:28:11 +0000 (12:28 -0800)]
[MLIR] Don't use SSA names directly for std.view canonicalization test
Reviewers: rriddle, nicolasvasilache
Subscribers: mehdi_amini, jpienaar, burmako, shauheen, antiagainst, arpith-jacob, mgester, lucyrfox, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D72408
Evgenii Stepanov [Wed, 8 Jan 2020 22:33:28 +0000 (14:33 -0800)]
Revert "Merge memtag instructions with adjacent stack slots."
*** Bad machine code: Tied use must be a register ***
- function: stg_alloca17
- basic block: %bb.0 entry (0x20076710580)
- instruction: early-clobber %0:gpr64common, early-clobber %1:gpr64sp = STGloop 272, %stack.0.a :: (store 272 into %ir.a, align 16)
- operand 3: %stack.0.a
http://lab.llvm.org:8011/builders/llvm-clang-x86_64-expensive-checks-win/builds/21481/steps/test-check-all/logs/stdio
This reverts commit
b675a7628ce6a21b1e4a71c079a67badfb8b073d.
Adrian Prantl [Wed, 8 Jan 2020 22:31:27 +0000 (14:31 -0800)]
Delete dead code.
https://reviews.llvm.org/D58856
Jonas Devlieghere [Wed, 8 Jan 2020 22:01:57 +0000 (14:01 -0800)]
[lldb/CMake] Only auto-enable Lua when SWIG is found
Just like Python, Lua should only be auto-enabled if SWIG is found as
well. This moves the logic of finding SWIG and Lua as a whole into a new
CMake package.
Kazu Hirata [Wed, 8 Jan 2020 21:58:39 +0000 (13:58 -0800)]
Revert "[JumpThreading] Thread jumps through two basic blocks"
It looks like my patch breaks the sanitizer-windows build:
http://lab.llvm.org:8011/builders/sanitizer-windows/builds/56324
This reverts commit
ead815924e6ebeaf02c31c37ebf7a560b5fdf67b.
Jonas Devlieghere [Wed, 8 Jan 2020 21:34:55 +0000 (13:34 -0800)]
[lldb/SWIG] Refactor extensions to be non Python-specific
The current SWIG extensions for the string conversion operator is Python
specific because it uses the PythonObjects. This means that the code
cannot be reused for other SWIG supported languages such as Lua.
This reimplements the extensions in a more generic way that can be
reused.
Differential revision: https://reviews.llvm.org/D72377
Sanjay Patel [Wed, 8 Jan 2020 21:22:14 +0000 (16:22 -0500)]
[InstSimplify] add tests for select of true/false; NFC
Martin Storsjö [Mon, 6 Jan 2020 11:54:12 +0000 (13:54 +0200)]
[LLD] [COFF] Fix post-commit suggestions for absolute symbol equality
Differential Revision: https://reviews.llvm.org/D72252
Ahmed Taei [Wed, 8 Jan 2020 01:46:40 +0000 (17:46 -0800)]
Canonicalize static alloc followed by memref_cast and std.view
Summary: Rewrite alloc, memref_cast, std.view into allo, std.view by droping memref_cast.
Reviewers: nicolasvasilache
Subscribers: mehdi_amini, rriddle, jpienaar, burmako, shauheen, antiagainst, arpith-jacob, mgester, lucyrfox, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D72379
Sanjay Patel [Wed, 8 Jan 2020 19:42:32 +0000 (14:42 -0500)]
[x86] add test for concat-extract corner case; NFC
See D72361 for discussion.
Teresa Johnson [Wed, 8 Jan 2020 17:58:18 +0000 (09:58 -0800)]
LTOVisibility.rst: fix up syntax in example
Summary: Pretty self-evident. This example was missing an lparen. Added it, and fixed up the ASCII art.
Patch by Nick Black <dankamongmen@gmail.com>
Reviewers: pcc
Reviewed By: pcc
Subscribers: tejohnson, mehdi_amini, inglorion, hiraditya, steven_wu, dexonsmith, cfe-commits
Tags: #llvm, #clang
Differential Revision: https://reviews.llvm.org/D70765
Rihan Yang [Wed, 8 Jan 2020 19:09:29 +0000 (14:09 -0500)]
Add a new AST matcher 'optionally'.
This matcher matches any node and at the same time executes all its
inner matchers to produce any possbile result bindings.
This is useful when a user wants certain supplementary information
that's not always present along with the main match result.
Evgenii Stepanov [Wed, 25 Sep 2019 00:03:18 +0000 (17:03 -0700)]
Merge memtag instructions with adjacent stack slots.
Summary:
Detect a run of memory tagging instructions for adjacent stack frame slots,
and replace them with a shorter instruction sequence
* replace STG + STG with ST2G
* replace STGloop + STGloop with STGloop
This code needs to run when stack slot offsets are already known, but before
FrameIndex operands in STG instructions are eliminated; that's the
reason for the new hook in PrologueEpilogue.
This change modifies STGloop and STZGloop pseudos to take the size as an
immediate integer operand, and base address as a FI operand when
possible. This is needed to simplify recognizing an STGloop instruction
as operating on a stack slot post-regalloc.
This improves memtag code size by ~0.25%, and it looks like an additional ~0.1%
is possible by rearranging the stack frame such that consecutive STG
instructions reference adjacent slots (patch pending).
Reviewers: pcc, ostannard
Subscribers: hiraditya, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D70286
Philip Reames [Wed, 8 Jan 2020 18:53:43 +0000 (10:53 -0800)]
[X86] Keep cl::opts at top of file [NFC]
Stella Stamenova [Wed, 8 Jan 2020 18:39:20 +0000 (10:39 -0800)]
[MLIR] Fix ML IR build on Windows with Visual Studio
Summary: Right now the path for each lib in whole_archive_link when MSVC is used as the compiler is not a full path - and it's not even the correct path when VS is used to build. This patch sets the lib path to a full path using CMAKE_CFG_INTDIR which means the path will be correct regardless of whether ninja, make or VS is used and it will always be a full path.
Reviewers: denis13, jpienaar
Reviewed By: jpienaar
Subscribers: mgorny, mehdi_amini, rriddle, jpienaar, burmako, shauheen, antiagainst, nicolasvasilache, arpith-jacob, mgester, lucyrfox, llvm-commits, asmith
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D72403
Andi-Bogdan Postelnicu [Wed, 8 Jan 2020 17:59:19 +0000 (19:59 +0200)]
[clang-tidy] Remove broken test on Windows for `readability-misleading-indentation`.
Because Windows build uses by default `fdelayed-template-parsing` we cannot have a test
where we don't instantiate the template. Please see D72333.
River Riddle [Wed, 8 Jan 2020 18:11:56 +0000 (10:11 -0800)]
[mlir] NFC: Move the state for managing aliases out of ModuleState and into a new class AliasState.
Summary: This reduces the complexity of ModuleState and simplifies the code. A future revision will mold ModuleState into something that can be used by users for caching of printer state, as well as for implementing printAsOperand style methods.
Reviewed By: antiagainst
Differential Revision: https://reviews.llvm.org/D72292
Nicolas Vasilache [Mon, 6 Jan 2020 00:37:56 +0000 (19:37 -0500)]
[mlir][Linalg] Lower linalg.reshape to LLVM for the static case
Summary:
This diff adds lowering of the linalg.reshape op to LLVM.
A new descriptor is created with fields initialized as follows:
1. allocatedPTr, alignedPtr and offset are copied from the source descriptor
2. sizes are copied from the static destination shape
3. strides are copied from the static strides collected with `getStridesAndOffset`
Only the static case in which the target view conforms to strided memref
semantics is supported. Other cases are left for future work and will be added on
a per-need basis.
Reviewers: ftynse, mravishankar
Subscribers: mehdi_amini, rriddle, jpienaar, burmako, shauheen, antiagainst, arpith-jacob, mgester, lucyrfox, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D72316
Craig Topper [Wed, 8 Jan 2020 17:52:37 +0000 (09:52 -0800)]
[X86] Custom type legalize v4i64->v4f32 uint_to_fp on sse4.1 targets in 64-bit mode
For v4i64->v4f32 uint_to_fp on pre-avx targets where v4i64 isn't legal we create to v2i64->v2f32 uint_to_fp that need to be shuffled together. Our codegen for v2i64->v2f32 involves detecting if the number is larger than (2^31 - 1), if so we do a special divison by 2 so we can do a signed conversion which we need to scalarize, then do a multiply by 2 at the end if we divided earlier.
When v4i64 isn't legal we need to split the checking for a larger number and dividing by 2 into two v2i64 vectors. The scalar part can extract the 4 i64 values from those 4 splits. But we can reassemble the 4 scalar f32 results directly into a single v432 vector. Then we just need to combine the fixup indications from the 2 halves and we can do the final multiply by 2 fixup on all 4 values if needed at once using a single v4f32 blend and v4f32 fadd.
Differential Revision: https://reviews.llvm.org/D72368
Craig Topper [Wed, 8 Jan 2020 00:13:11 +0000 (16:13 -0800)]
[X86] Add isel patterns for bitcasting between v32i1/v64i1 and float/double.
We have to do an intermediate jump to a GPR to make the cast.
Fixes PR43750.
Philip Reames [Wed, 8 Jan 2020 17:58:42 +0000 (09:58 -0800)]
[BranchAlign] Compiler support for suppressing branch align
As discussed heavily in the original review (D70157), there's a need for the compiler to be able to selective suppress padding (either nop or prefix) to respect assumptions about the meaning of labels and instructions in generated code.
Rather than wait for syntax to be finalized - which appears to be a very slow process - this patch focuses on the compiler use case and *only* worries about the integrated assembler. To my knowledge, this covers all cases mentioned to date for clang/JIT support.
For testing purposes, I wired it up so that if the integrated assembler was using autopadding for branch alignment (e.g. enabled at command line) then the textual assembly output would contain a comment for each location where padding was enabled or disabled. This seemed like the least painful choice overall.
Note that the result of this patch effective disables the jcc errata mitigation for many constructs (statepoints, implicit null checks, xray, etc...) which is non ideal. It is at least *correct* and should allow us to enable the mitigation for the compiler. Once that's done, and a few other items are worked through, we probably want to come back to this an explore a bundling based approach instead so that we can pad instructions while keeping labels in the right place.
Differential Revision: https://reviews.llvm.org/D72303
Fangrui Song [Sat, 21 Dec 2019 05:40:50 +0000 (21:40 -0800)]
[ELF] Delete an unused special rule from isStaticLinkTimeConstant. NFC
Weak undefined symbols are preemptible after D71794.
if (sym.isPreemptible)
return false;
if (!config->isPic)
return true;
// isPic means includeInDynsym is true after D71794.
...
// We can delete this if because it can never be true.
if (sym.isUndefWeak)
return true;
Differential Revision: https://reviews.llvm.org/D71795
Fangrui Song [Sat, 21 Dec 2019 05:43:46 +0000 (21:43 -0800)]
[ELF] Don't special case weak symbols for pie with no shared objects
D59275 added the following clause to Symbol::includeInDynsym()
if (isUndefWeak() && Config->Pie && SharedFiles.empty())
return false;
D59549 explored the possibility to generalize it for -no-pie.
GNU ld's rules are architecture dependent and partly controlled by -z
{,no-}dynamic-undefined-weak. Our attempts to mimic its rules are
actually half-baked and don't provide perceivable benefits (it can save
a few more weak undefined symbols in .dynsym in a -static-pie
executable). Let's just delete the rule for simplicity. We will expect
cosmetic inconsistencies with ld.bfd in certain -static-pie scenarios.
This permits a simplification in D71795.
Reviewed By: peter.smith
Differential Revision: https://reviews.llvm.org/D71794
Simon Pilgrim [Wed, 8 Jan 2020 17:13:54 +0000 (17:13 +0000)]
[MC] writeFragment - assert MCFragment::FT_Fill length is legal.
Silence (clang/MSVC) static analyzer warnings that the fragment data may either write out of bounds of the local array or reference uninitialized data.
Simon Pilgrim [Wed, 8 Jan 2020 16:52:05 +0000 (16:52 +0000)]
Fix "pointer is null" static analyzer warning. NFCI.
Use cast<> instead of dyn_cast<> since we know that the pointer should be valid (and is dereferenced immediately below in the getSignature call).
Simon Pilgrim [Wed, 8 Jan 2020 16:41:41 +0000 (16:41 +0000)]
Fix "pointer is null" static analyzer warning. NFCI.
Use castAs<> instead of getAs<> since we know that the pointer will be valid (and is dereferenced immediately below).
Jonas Devlieghere [Wed, 8 Jan 2020 17:03:40 +0000 (09:03 -0800)]
[lldb/CMake] Use LLDB's autodetection logic for libxml2
Libxml2 is already an optional dependency. It should use the same
infrastructure as the other dependencies.
Differential revision: https://reviews.llvm.org/D72290
Michael Liao [Wed, 8 Jan 2020 15:48:58 +0000 (10:48 -0500)]
[amdgpu] Remove unused header. NFC.
Simon Pilgrim [Wed, 8 Jan 2020 16:04:19 +0000 (16:04 +0000)]
[SelectionDAG] Use llvm::Optional<APInt> for FoldValue.
Use llvm::Optional<APInt> instead of std::pair<APInt, bool> with the bool second being used to report success/failure of fold.
Sanjay Patel [Wed, 8 Jan 2020 15:33:44 +0000 (10:33 -0500)]
[InstCombine] Adding testcase for Z / (1.0 / Y) => (Y * Z); NFC
The added testcase shows the current transformation for the operation
Z / (1.0 / Y), which remains unchanged. This will be updated to align
with the transformed code (Y * Z) with D72319.
The existing transformation Z / (X / Y) => (Y * Z) / X is not handling
this case as there are multiple uses for (1.0 / Y) in this testcase.
Patch by: @raghesh (Raghesh Aloor)
Differential Revision: https://reviews.llvm.org/D72388
Sanjay Patel [Wed, 8 Jan 2020 14:42:21 +0000 (09:42 -0500)]
[DAGCombiner] clean up extract-of-concat fold; NFC
This hopes to improve readability and adds an assert.
The functional change noted by the TODO comment is
proposed in:
D72361
Alexey Bataev [Wed, 8 Jan 2020 14:39:44 +0000 (09:39 -0500)]
[OPENMP]Allow comma in combiner expression.
Use ParseExpression() instead of ParseAssignmentExpression() to allow
commas in combiner expressions.
Kazu Hirata [Wed, 8 Jan 2020 14:57:36 +0000 (06:57 -0800)]
[JumpThreading] Thread jumps through two basic blocks
Summary:
This patch teaches JumpThreading.cpp to thread through two basic
blocks like:
bb3:
%var = phi i32* [ null, %bb1 ], [ @a, %bb2 ]
%tobool = icmp eq i32 %cond, 0
br i1 %tobool, label %bb4, label ...
bb4:
%cmp = icmp eq i32* %var, null
br i1 %cmp, label bb5, label bb6
by duplicating basic blocks like bb3 above. Once we duplicate bb3 as
bb3.dup and redirect edge bb2->bb3 to bb2->bb3.dup, we have:
bb3:
%var = phi i32* [ @a, %bb2 ]
%tobool = icmp eq i32 %cond, 0
br i1 %tobool, label %bb4, label ...
bb3.dup:
%var = phi i32* [ null, %bb1 ]
%tobool = icmp eq i32 %cond, 0
br i1 %tobool, label %bb4, label ...
bb4:
%cmp = icmp eq i32* %var, null
br i1 %cmp, label bb5, label bb6
Then the existing code in JumpThreading.cpp can thread edge
bb3.dup->bb4 through bb4 and eventually create bb3.dup->bb5.
Reviewers: wmi
Subscribers: hiraditya, jfb, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D70247
Simon Tatham [Wed, 8 Jan 2020 13:37:12 +0000 (13:37 +0000)]
[ARM,MVE] Intrinsics for variable shift instructions.
This batch of intrinsics fills in all the shift instructions that take
a variable shift distance in a register, instead of an immediate. Some
of these instructions take a single shift distance in a scalar
register and apply it to all lanes; others take a vector of per-lane
distances.
These instructions are all basically one family, varying in whether
they saturate out-of-range values, and whether they round when bits
are shifted off the bottom. I've implemented them at the IR level by a
much smaller family of IR intrinsics, which take flag parameters to
indicate saturating and/or rounding (along with the usual one to
specify signed/unsigned integers).
An oddity is that all of them are //left// shift instructions – but if
you pass a negative shift count, they'll shift right. So the vector
shift distances are always vectors of //signed// integers, regardless
of whether you're considering the other input vector to be of signed
or unsigned. Also, even the simplest `vshlq` instruction in this
family (neither saturating nor rounding) has to be implemented as an
IR intrinsic, because the ordinary LLVM IR `shl` operation would
consider an out-of-range shift count to be undefined behavior.
Reviewers: dmgreen, MarkMurrayARM, miyuki, ostannard
Reviewed By: dmgreen
Subscribers: kristof.beyls, hiraditya, cfe-commits, llvm-commits
Tags: #clang, #llvm
Differential Revision: https://reviews.llvm.org/D72329
Simon Tatham [Wed, 8 Jan 2020 13:36:25 +0000 (13:36 +0000)]
[ARM,MVE] Intrinsics for partial-overwrite imm shifts.
This batch of intrinsics covers two sets of immediate shift
instructions, which have in common that they only overwrite part of
their output register and so they need an extra input giving its
previous value.
The VSLI and VSRI instructions shift each lane of the input vector
left or right just as if they were normal immediate VSHL/VSHR, but
then they only overwrite the output bits that correspond to actual
shifted bits of the input. So VSLI will leave the low n bits of each
output lane unchanged, and VSRI the same with the top n bits.
The V[Q][R]SHR[U]N family are all narrowing shifts: they take an input
vector of 2n-bit integers, shift each lane right by a constant, and
then narrowing the shifted result to only n bits. So they only
overwrite half of the n-bit lanes in the output register, and the B/T
suffix indicates whether it's the bottom or top half of each 2n-bit
lane.
I've implemented the whole of the latter family using a single IR
intrinsic `vshrn`, which takes a lot of i32 parameters indicating
which instruction it expands to (by specifying signedness of the input
and output types, whether it saturates and/or rounds, etc).
Reviewers: dmgreen, MarkMurrayARM, miyuki, ostannard
Reviewed By: dmgreen
Subscribers: kristof.beyls, hiraditya, cfe-commits, llvm-commits
Tags: #clang, #llvm
Differential Revision: https://reviews.llvm.org/D72328
Andi-Bogdan Postelnicu [Tue, 7 Jan 2020 09:44:15 +0000 (11:44 +0200)]
[clang-tidy] Disable match on `if constexpr` statements in template instantiation for `readability-misleading-indentation` check.
Summary: Fixes fixes `readability-misleading-identation` for `if constexpr`. This is very similar to D71980.
Reviewers: alexfh
Subscribers: xazax.hun, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D72333
Bevin Hansson [Wed, 8 Jan 2020 14:05:03 +0000 (15:05 +0100)]
[Intrinsic] Add fixed point division intrinsics.
Summary:
This patch adds intrinsics and ISelDAG nodes for
signed and unsigned fixed-point division:
llvm.sdiv.fix.*
llvm.udiv.fix.*
These intrinsics perform scaled division on two
integers or vectors of integers. They are required
for the implementation of the Embedded-C fixed-point
arithmetic in Clang.
Patch by: ebevhan
Reviewers: bjope, leonardchan, efriedma, craig.topper
Reviewed By: craig.topper
Subscribers: Ka-Ka, ilya, hiraditya, jdoerfert, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D70007
Qiu Chaofan [Wed, 8 Jan 2020 14:12:15 +0000 (22:12 +0800)]
[NFC] Move InPQueue into arguments of releaseNode
This patch moves `InPQueue` into function arguments instead of template
arguments of `releaseNode`, which is a cleaner approach.
Differential Revision: https://reviews.llvm.org/D72125
Aaron Ballman [Wed, 8 Jan 2020 13:53:04 +0000 (08:53 -0500)]
Fixing a formatting nit; NFC
LLVM GN Syncbot [Wed, 8 Jan 2020 13:43:29 +0000 (13:43 +0000)]
[gn build] Port
346f6b54bd1
Anna Welker [Wed, 8 Jan 2020 13:08:27 +0000 (13:08 +0000)]
[ARM][MVE] Enable masked gathers from vector of pointers
Adds a pass to the ARM backend that takes a v4i32
gather and transforms it into a call to MVE's
masked gather intrinsics.
Differential Revision: https://reviews.llvm.org/D71743
Aaron Ballman [Wed, 8 Jan 2020 13:38:02 +0000 (08:38 -0500)]
Disallow an empty string literal in an asm label
An empty string literal in an asm label does not make a whole lot of sense. GCC
does not diagnose such a construct, but it also generates code that cannot be
assembled by gas should two symbols have an empty asm label within the same TU.
This does not affect an asm statement with an empty string literal, which is
still a useful construct.
Nico Weber [Wed, 8 Jan 2020 12:44:33 +0000 (07:44 -0500)]
[gn build] (manually) merge
1cf11a4c67a15
Alexey Lapshin [Fri, 20 Dec 2019 16:23:31 +0000 (19:23 +0300)]
[Dsymutil][Debuginfo][NFC] Reland: Refactor dsymutil to separate DWARF optimizing part. #2.
Summary:
This patch relands D71271. The problem with D71271 is that it has cyclic dependency:
CodeGen->AsmPrinter->DebugInfoDWARF->CodeGen. To avoid cyclic dependency this patch
puts implementation for DWARFOptimizer into separate library: lib/DWARFLinker.
Thus the difference between this patch and D71271 is in that DWARFOptimizer renamed into
DWARFLinker and it`s files are put into lib/DWARFLinker.
Reviewers: JDevlieghere, friss, dblaikie, aprantl
Reviewed By: JDevlieghere
Subscribers: thegameg, merge_guards_bot, probinson, mgorny, hiraditya, llvm-commits
Tags: #llvm, #debug-info
Differential Revision: https://reviews.llvm.org/D71839
Sam Parker [Wed, 8 Jan 2020 10:29:12 +0000 (05:29 -0500)]
[NFC][ARM] Update tests
Run the update_mir_test on some of the low-overhead loop tests.
Raphael Isemann [Wed, 8 Jan 2020 08:40:08 +0000 (09:40 +0100)]
[lldb] Remove default llvm::Triple argument from ClangASTContext constructor
Creating an ASTContext with an unknown triple is rarely a good idea (as usually
all our ASTs have a valid triple that is either from the host or the target) and the
default argument makes it far to easy to implicitly create such an AST. Let's
remove it and force people to pass a triple.
The only place where we don't pass a triple is a DWARFASTParserClangTests
where we now just pass the host triple instead (the test doesn't depend on any
triple so this shouldn't change anything).
Xuanda Yang [Wed, 8 Jan 2020 10:37:41 +0000 (18:37 +0800)]
[llvm-symbolizer]Fix printing of malformed address values not passed via stdin
Summary:
relates https://bugs.llvm.org/show_bug.cgi?id=44443
Adding missing newline when printing bad input values.
Fix testcase
Reviewers: jhenderson
Reviewed By: jhenderson
Subscribers: rupprecht, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D72313
Kadir Cetinkaya [Wed, 8 Jan 2020 10:21:21 +0000 (11:21 +0100)]
Revert "[InstCombine] fold zext of masked bit set/clear"
This reverts commit
a041c4ec6f7aa659b235cb67e9231a05e0a33b7d.
This looks like a non-trivial change and there has been no code
reviews (at least there were no phabricator revisions attached to the
commit description). It is also causing a regression in one of our
downstream integration tests, we haven't been able to come up with a
minimal reproducer yet.
Tim Northover [Fri, 15 Nov 2019 12:39:56 +0000 (12:39 +0000)]
AArch64: add missing Apple CPU names and use them by default.
Apple's CPUs are called A7-A13 in official communication, occasionally with
weird suffixes which we probably don't need to care about. This adds each one
and describes its features. It also switches the default CPU to the canonical
name for Cyclone, but leaves legacy support in so that existing bitcode still
compiles.
Raphael Isemann [Wed, 8 Jan 2020 08:02:55 +0000 (09:02 +0100)]
[lldb][NFC] Remove redundant ClangASTContext constructor that takes ArchSpec
ArchSpec has a superset of the information of llvm::Triple but the ClangASTContext
just uses the Triple part of it. This deletes the ArchSpec constructor and all
the code creating ArchSpecs and instead just uses the llvm::Triple constructor
for ClangASTContext.
Stephan T. Lavavej [Wed, 8 Jan 2020 07:33:52 +0000 (23:33 -0800)]
[libcxx][test] Fix span tests.
span.cons/container.pass.cpp
N4842 22.7.3.2 [span.cons]/13 constrains span's range constructor
for ranges::contiguous_range (among other criteria).
24.4.5 [range.refinements]/2 says that contiguous_range requires data(),
and (via contiguous_range, random_access_range, bidirectional_range,
forward_range, input_range, range) it also requires begin() and end()
(see 24.4.2 [range.range]/1).
Therefore, IsAContainer needs to provide begin() and end().
(Detected by MSVC's concept-constrained implementation.)
span.cons/stdarray.pass.cpp
This test uses std::array, so it must include <array>.
<span> isn't guaranteed to drag in <array>.
(Detected by MSVC's implementation which uses a forward declaration to
avoid dragging in <array>, for increased compiler throughput.)
span.objectrep/as_bytes.pass.cpp
span.objectrep/as_writable_bytes.pass.cpp
Testing `sp.extent == std::dynamic_extent` triggers MSVC warning
C4127 "conditional expression is constant". Using `if constexpr` is a
simple way to avoid this without disrupting anyone else (as span
requires C++20 mode).
span.tuple/get.pass.cpp
22.7.3.2 [span.cons]/4.3: "Preconditions: If extent is not equal to
dynamic_extent, then count is equal to extent."
These lines were triggering undefined behavior (detected by assertions
in MSVC's implementation).
I changed the count arguments in the first two chunks, followed by
changing the span extents, in order to preserve the test's coverage
and follow the existing pattern.
span.cons/span.pass.cpp
22.7.3.2 [span.cons]/18.1 constrains span's converting constructor with
"Extent == dynamic_extent || Extent == OtherExtent is true".
This means that converting from dynamic extent to static extent is
not allowed. (Other constructors tested elsewhere, like
span(It first, size_type count), can be used to write such code.)
As this is the test for the converting constructor, I have:
* Removed the "dynamic -> static" case from checkCV(), which is
comprehensive.
* Changed the initialization of std::span<T, 0> s1{}; in
testConstexprSpan() and testRuntimeSpan(), because s1 is used below.
* Removed ASSERT_NOEXCEPT(std::span<T, 0>{s0}); from those functions,
as they are otherwise comprehensive.
* Deleted testConversionSpan() entirely. Note that this could never
compile (it had a bool return type, but forgot to say `return`). And it
couldn't have provided useful coverage, as the /18.2 constraint
"OtherElementType(*)[] is convertible to ElementType(*)[]"
permits only cv-qualifications, which are already tested by checkCV().
Utkarsh Saxena [Thu, 12 Dec 2019 11:12:17 +0000 (12:12 +0100)]
[clangd] Add xref for macros to FileIndex.
Summary:
Adds macro references to the dynamic index.
Tests added.
Also exposed a new API to convert path to URI in URI.h
Reviewers: hokein
Subscribers: ilya-biryukov, MaskRay, jkorous, arphaman, kadircet, cfe-commits
Tags: #clang
Differential Revision: https://reviews.llvm.org/D71406
Siva Chandra Reddy [Tue, 7 Jan 2020 19:09:40 +0000 (11:09 -0800)]
[libc] Add a convenience CMake rule to add testsuites.
Summary:
This rule helps avoid repeated setting of check-libc's dependency on the
various testsuites.
Reviewers: abrachet
Subscribers: mgorny, MaskRay, tschuett, libc-commits
Tags: #libc-project
Differential Revision: https://reviews.llvm.org/D72353
QingShan Zhang [Wed, 8 Jan 2020 06:48:51 +0000 (06:48 +0000)]
[NFC][Test] Add the option -enable-no-signed-zeros-fp-math for test
fma-combine.ll
Jonas Devlieghere [Wed, 8 Jan 2020 05:53:33 +0000 (21:53 -0800)]
[lldb/CMake] Only auto-enable Python when SWIG is found
As correctly pointed out by Martin on the mailing list, Python should
only be auto-enabled if SWIG is found as well. This moves the logic of
finding SWIG into FindPythonInterpAndLibs to make that possible.
To make diagnosing easier I've included a status message to convey why
Python support is disabled.
Jonas Devlieghere [Wed, 8 Jan 2020 05:36:19 +0000 (21:36 -0800)]
[lldb/Test] Try to appease the Windows bot
In TestConvenienceVariables I changed %t from a file to a directory.
This tripped up mkdir which can't deal with an existing file at the
given location. In order to solve this issue on the bots I added an
`rm -rf %t` statement, but now the Windows bot complains that "This
function is not supported on this system".
If you never ran the test suite wit this temporary workaround, the test
might fail. If this happens please remove what %t expands to in the lit
output and rerun the test.
Wang, Pengfei [Thu, 26 Dec 2019 14:16:46 +0000 (22:16 +0800)]
[X86] Adding fp128 support for strict fcmp
Summary: Adding fp128 support for strict fcmp
Reviewers: craig.topper, LiuChen3, andrew.w.kaylor, RKSimon, uweigand
Subscribers: hiraditya, llvm-commits, LuoYuanke
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D71897
James Clarke [Wed, 8 Jan 2020 04:32:04 +0000 (04:32 +0000)]
[RISCV] Fix evalutePCRelLo for symbols at the end of a fragment
Summary:
This is analogous to D58943, which correctly finds the corresponding
fixup. However, when linker relaxations are disabled and we evaluate the
fixup, we need to also ensure we use an offset of 0 rather than the size
of the previous fragment.
Reviewers: asb, efriedma, lenary
Reviewed By: efriedma
Subscribers: hiraditya, rbar, johnrusso, simoncook, sabuasal, niosHD, kito-cheng, shiva0217, MaskRay, zzheng, edward-jones, rogfer01, MartinMosbeck, brucehoult, the_o, rkruppe, PkmX, jocewei, psnobl, benna, Jim, s.egerton, pzheng, sameer.abuasal, apazos, luismarques, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D71978
Denis Khalikov [Wed, 8 Jan 2020 03:11:59 +0000 (22:11 -0500)]
[mlir][spirv] Add lowering for std.fpext, std.fptrunc, std.sitofp.
Differential Revision: https://reviews.llvm.org/D72137
Lei Zhang [Wed, 8 Jan 2020 03:11:17 +0000 (22:11 -0500)]
Revert "[mlir][spirv] Add lowering for std.fpext, std.fptrunc, std.sitofp."
This reverts commit
7e7f849a6d94f77f1a29630419acb7226051f4b6 because
it recorded the wrong commit author.
Matt Arsenault [Wed, 8 Jan 2020 02:11:56 +0000 (21:11 -0500)]
AMDGPU: Annotate EXTRACT_SUBREGs with source register classes
This partially fixes GlobalISel import of the patterns, but removes a
lot of entriess from the end of the skipped pattern log.
Denis Khalikov [Wed, 8 Jan 2020 02:47:49 +0000 (21:47 -0500)]
[mlir][spirv] Add lowering for std cmp ops.
Differential Revision: https://reviews.llvm.org/D72296
Denis Khalikov [Wed, 8 Jan 2020 02:40:42 +0000 (21:40 -0500)]
[mlir][spirv] Add lowering for standard bit ops
Differential Revision: https://reviews.llvm.org/D72205
Jim Lin [Wed, 8 Jan 2020 02:43:45 +0000 (10:43 +0800)]
[docs] Fix duplicate explicit target name: developer policy
Lei Zhang [Wed, 8 Jan 2020 02:28:26 +0000 (21:28 -0500)]
[mlir][spirv] Add lowering for std.fpext, std.fptrunc, std.sitofp.
Differential Revision: https://reviews.llvm.org/D72137
czhengsz [Wed, 8 Jan 2020 01:52:37 +0000 (20:52 -0500)]
[SCEV] get more accurate range for AddExpr with wrap flag.
Reviewed By: nikic
Differential Revision: https://reviews.llvm.org/D64869
Jim Lin [Wed, 8 Jan 2020 01:48:01 +0000 (09:48 +0800)]
[docs] Improve HowTo commit changes from git
Summary: As a novice here I tried to `git push` my changes for a while before figuring out the correct workflow which is described on other pages. This small change doesn't reduce redundancy between those pages, but at least readers can follow the links now.
Reviewers: Kokan, Jim
Reviewed By: Kokan, Jim
Subscribers: riccibruno, kiszk, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D72077
Kazuaki Ishizaki [Wed, 8 Jan 2020 01:35:12 +0000 (09:35 +0800)]
[libcxx] fix incorrect attribute property
Summary:
`__has_attribute(fallthough)` -> `__has_attribute(fallthrough)`
This is a follow-up of https://reviews.llvm.org/D72287
Reviewers: EricWF, mclow.lists, Jim
Reviewed By: Jim
Subscribers: christof, ldionne, libcxx-commits
Tags: #libc
Differential Revision: https://reviews.llvm.org/D72314
Eric Christopher [Wed, 8 Jan 2020 01:00:23 +0000 (17:00 -0800)]
XFAIL load_extension.ll for all targets currently - it's failing on
additional platforms than just darwin.
Jonas Devlieghere [Wed, 8 Jan 2020 00:45:43 +0000 (16:45 -0800)]
Revert "Re-land "[lldb/Lua] Add string conversion operator for SBTarget.""
This was returning a pointer to a stack-allocated memory location. This
works for Python where we return a PythonString which must own the
underlying string.
Jason Molenda [Wed, 8 Jan 2020 00:12:49 +0000 (16:12 -0800)]
Rewrite comment about what watchpoints Aarch64 supports.
Philip Reames [Wed, 8 Jan 2020 00:03:51 +0000 (16:03 -0800)]
[GVN/FP] Considate logic for reasoning about equality vs equivalance for floats
Factor out common logic into some reasonable commented helper functions. In the process, ensure that the in-block vs cross-block cases are handled the same. They previously weren't.
Differential Revision: https://reviews.llvm.org/D67126
Daniel Sanders [Wed, 8 Jan 2020 00:02:06 +0000 (16:02 -0800)]
Fix warnings as errors that occur on sanitizer-x86_64-linux
Fangrui Song [Tue, 7 Jan 2020 22:21:39 +0000 (14:21 -0800)]
[PowerPC] Default ppc64 linux-gnu/freebsd to -fno-PIC
According to D53384, the default was switched from -fno-PIC to -fPIC to
work around a -fsanitize=leak bug on big-endian.
This gratuitous difference between little-endian and big-endian is
undesired, and not acceptable on powerpc64-unknown-freebsd. If
-fsanitize=leak still has the problem, we should consider defaulting to
-fPIC/-fPIE only when -fsanitize=leak is specified (see SanitizerArgs::requiresPIE())
powerpc64-ibm-aix is unaffected: it still defaults to -fPIC.
powerpc64-linux-musl is unaffected (-fPIE since D39588): it still defaults to -fPIE.
Reviewed By: #powerpc, jhibbits
Differential Revision: https://reviews.llvm.org/D72363
Amara Emerson [Tue, 7 Jan 2020 18:52:26 +0000 (10:52 -0800)]
[AArch64][GlobalISel] Fold a chain of two G_PTR_ADDs of constant offsets.
E.g.
%addr1 = G_PTR_ADD %base, G_CONSTANT 20
%addr2 = G_PTR_ADD %addr1, G_CONSTANT 8
-->
%addr2 = G_PTR_ADD %base, G_CONSTANT 28
Differential Revision: https://reviews.llvm.org/D72351
Craig Topper [Tue, 7 Jan 2020 21:50:59 +0000 (13:50 -0800)]
[X86] Add SSE4.1 command lines to vec-strict-inttofp-128.ll to cover the v2i64->v2f32 strict_uitofp codegen. NFC
Bill Wendling [Tue, 7 Jan 2020 21:43:04 +0000 (13:43 -0800)]
Revert "Allow output constraints on "asm goto""
This reverts commit
52366088a8e42c2f1e96e8430b84b8b65ec3f7bc.
I accidentally pushed this before supporting changes.
Jonas Devlieghere [Tue, 7 Jan 2020 21:23:52 +0000 (13:23 -0800)]
Re-land "[lldb/Lua] Add string conversion operator for SBTarget."
Extend the SBTarget class with a string conversion operator and reuse
the same code between Python and Lua. This should happen for all the SB
classes, but I'm doing just this one as an example and for use in a test
case.
Bill Wendling [Tue, 7 Jan 2020 20:53:44 +0000 (12:53 -0800)]
Allow output constraints on "asm goto"
Summary:
Remove the restrictions that preventing "asm goto" from returning non-void
values. The values returned by "asm goto" are only valid on the "fallthrough"
path.
Reviewers: jyknight, nickdesaulniers, hfinkel
Reviewed By: jyknight, nickdesaulniers
Subscribers: rsmith, hiraditya, llvm-commits, cfe-commits, craig.topper, rnk
Tags: #clang, #llvm
Differential Revision: https://reviews.llvm.org/D69876
Matt Arsenault [Tue, 7 Jan 2020 21:24:42 +0000 (16:24 -0500)]
AMDGPU/GlobalISel: Fix scalar G_SELECT for arbitrary pointers
4e85ca9562a588eba491e44bcbf73cb2f419780f missed updating the legal
condition type set for pointers with any unrecognized address space.
Matt Arsenault [Tue, 7 Jan 2020 21:04:43 +0000 (16:04 -0500)]
AMDGPU/GlobalISel: Add some missing G_SELECT testcases
Matt Arsenault [Tue, 7 Jan 2020 20:31:03 +0000 (15:31 -0500)]
AMDGPU/GlobalISel: Fix missing test for s16 icmp
Matt Arsenault [Tue, 7 Jan 2020 18:32:03 +0000 (13:32 -0500)]
AMDGPU: Apply i16 add->sub pattern with zext to i32
This was only applying the deeper nested zext pattern, and missing the
special case code size fold.
Mitchell Balan [Tue, 7 Jan 2020 18:49:55 +0000 (13:49 -0500)]
[clang-tidy] modernize-use-using uses AST and now supports struct defintions and multiple types in a typedef
Summary:
It now handles `typedef`s that include comma-separated multiple types, and handles embedded struct definitions, which previously could not be automatically converted.
For example, with this patch `modernize-use-using` now can convert:
typedef struct { int a; } R_t, *R_p;
to:
using R_t = struct { int a; };
using R_p = R_t*;
`-ast-dump` showed that the `CXXRecordDecl` definitions and multiple `TypedefDecl`s come consecutively in the tree, so `check()` stores information between calls to determine when it is receiving a second or additional `TypedefDecl` within a single `typedef`, or when the current `TypedefDecl` refers to an embedded `CXXRecordDecl` like a `struct`.
Reviewers: alexfh, aaron.ballman
Patch by: poelmanc
Subscribers: riccibruno, sammccall, cfe-commits, aaron.ballman
Tags: clang-tools-extra, clang
Differential Revision: https://reviews.llvm.org/D70270
Eric Fiselier [Tue, 7 Jan 2020 21:31:06 +0000 (16:31 -0500)]
[libc++] Add additional benchmark functions to libcxx/benchmarks/string.bench
This change adds the following benchmarks:
- StringAssignStr
Assign a const basic::string& value
- StringAssignAsciiz
Assign a const char* asciiz value
StringAssignAsciizMix
Assign mixed long/short const char* asciiz values
- StringResizeDefaultInit
Resize default init benchmark
Patch by Martijn Vels (mvels@google.com)
Reviewed as D72343
Craig Topper [Tue, 7 Jan 2020 21:25:29 +0000 (13:25 -0800)]
[X86] Enable v2i64->v2f32 uint_to_fp code in ReplaceNodeResults on SSE4.1 target
Now that we generate decent code for (v2i64 (setlt zero, X)) on pre-sse4.2 targets I think we can use this now.
Differential Revision: https://reviews.llvm.org/D72354
Jonas Devlieghere [Tue, 7 Jan 2020 21:21:47 +0000 (13:21 -0800)]
[lldb/Test] Remove old binary created by TestConvenienceVariables
On a dirty build directory the new mkdir fails because the file already
exists and is not a directory.