platform/upstream/llvm.git
3 years ago[SelectionDAG] Don't remove unused negated constant immediately
Qiu Chaofan [Mon, 5 Oct 2020 16:45:24 +0000 (00:45 +0800)]
[SelectionDAG] Don't remove unused negated constant immediately

This reverts partial of a2fb5446 (actually, 2508ef01) about removing
negated FP constant immediately if it has no uses. However, as discussed
in bug 47517, there're cases when NegX is folded into constant from
other places while NegY is removed by that line of code and NegX is
equal to NegY. In these cases, NegX is deleted before used and crash
happens. So revert the code and add necessary test case.

3 years ago[InstCombine] canEvaluateShifted - remove dead (and never used code). NFC.
Simon Pilgrim [Mon, 5 Oct 2020 16:51:13 +0000 (17:51 +0100)]
[InstCombine] canEvaluateShifted - remove dead (and never used code). NFC.

This was already #if'd out when it was added back in 2010 at rG18d7fc8fc6767 and has never been touched since.

3 years agoRevert "[DebugInfo] Improve dbg preservation in LSR."
Nikita Popov [Mon, 5 Oct 2020 16:58:54 +0000 (18:58 +0200)]
Revert "[DebugInfo] Improve dbg preservation in LSR."

This reverts commit a3caf7f6102dc863425f9714b099af58397f0cd2.

The ReleaseLTO-g test-suite configuration has been failing
to build since this commit, because clang segfaults while
building 7zip.

3 years ago[mlir][Linalg] Remove unused variable. NFCI.
Benjamin Kramer [Mon, 5 Oct 2020 16:58:29 +0000 (18:58 +0200)]
[mlir][Linalg] Remove unused variable. NFCI.

3 years agoAdd definition for static constexpr member (NFC)
Mehdi Amini [Mon, 5 Oct 2020 16:55:59 +0000 (16:55 +0000)]
Add definition for static constexpr member (NFC)

Fix the build for some toolchain and config.

3 years ago[flang] Introduce DiagnosticConsumer classes in libflangFrontend
Andrzej Warzynski [Mon, 5 Oct 2020 16:42:00 +0000 (17:42 +0100)]
[flang] Introduce DiagnosticConsumer classes in libflangFrontend

Currently Flang uses TextDiagnostic, TextDiagnosticPrinter &
TestDiagnosticBuffer classes from Clang (more specifically, from
libclangFrontend). This patch introduces simplified equivalents of these
classes in Flang (i.e. it removes the dependency on libclangFrontend).

Flang only needs these diagnostics classes for the compiler driver
diagnostics. This is unlike in Clang in which similar diagnostic classes
are used for e.g. Lexing/Parsing/Sema diagnostics. For this reason, the
implementations introduced here are relatively basic. We can extend them
in the future if this is required.

This patch also enhances how the diagnostics are printed. In particular,
this is the diagnostic that you'd get _before_  the changes introduced here
(no text formatting):

```
$ bin/flang-new
error: no input files
```

This is the diagnostic that you get _after_ the changes introduced here
(in terminals that support it, the text is formatted - bold + red):

```
$ bin/flang-new
flang-new: error: no input files
```

Tests are updated accordingly and options related to enabling/disabling
color diagnostics are flagged as supported by Flang.

Reviewed By: sameeranjoshi, CarolineConcatto

Differential Revision: https://reviews.llvm.org/D87774

3 years agoRevert "[OpenMP] Add Error Handling for Conflicting Pointer Sizes for Target Offload"
Joseph Huber [Mon, 5 Oct 2020 16:34:39 +0000 (12:34 -0400)]
Revert "[OpenMP] Add Error Handling for Conflicting Pointer Sizes for Target Offload"

Reverting because detecting architecture size doesn't work on all
platforms.

This reverts commit eaf73293cb6b8d45dd85ffced57aea7ad4177754.

3 years ago[SVE] Lower fixed length VECREDUCE_AND operation
Cameron McInally [Mon, 5 Oct 2020 16:27:15 +0000 (11:27 -0500)]
[SVE] Lower fixed length VECREDUCE_AND operation

Differential Revision: https://reviews.llvm.org/D88707

3 years ago[InstCombine] Extend 'shift with constants' vector tests
Simon Pilgrim [Mon, 5 Oct 2020 16:21:54 +0000 (17:21 +0100)]
[InstCombine] Extend 'shift with constants' vector tests

Added missing test coverage for shl(add(and(lshr(x,c1),c2),y),c1) -> add(and(x,c2<<c1),shl(y,c1)) combine

Rename tests as 'foo' and 'bar' isn't very extensible

Added vector tests with undefs and nonuniform constants

3 years ago[InstCombine] Add or(shl(v,and(x,bw-1)),lshr(v,bw-and(x,bw-1))) funnel shift tests
Simon Pilgrim [Mon, 5 Oct 2020 15:50:07 +0000 (16:50 +0100)]
[InstCombine] Add or(shl(v,and(x,bw-1)),lshr(v,bw-and(x,bw-1))) funnel shift tests

If we know the shift amount is less than the bitwidth we should be able to convert this to a funnel shift

3 years ago[X86] isTargetShuffleEquivalent - merge duplicate array accesses. NFCI.
Simon Pilgrim [Mon, 5 Oct 2020 14:51:50 +0000 (15:51 +0100)]
[X86] isTargetShuffleEquivalent - merge duplicate array accesses. NFCI.

3 years ago[libc++/abi] Revert "[libc++] Move the weak symbols list to libc++abi"
Louis Dionne [Mon, 5 Oct 2020 15:42:13 +0000 (11:42 -0400)]
[libc++/abi] Revert "[libc++] Move the weak symbols list to libc++abi"

This reverts commit c7d4aa711a. I am still investigating the issue,
but it looks like that commit has an interaction with ld64 that causes
new/delete weak re-exports not to work properly anymore. This is weird
because this commit did not touch the exports of new/delete -- I am
still investigating.

3 years ago[mlir] Split alloc-like op LLVM lowerings into base and separate derived classes.
Christian Sigg [Thu, 1 Oct 2020 19:51:54 +0000 (21:51 +0200)]
[mlir] Split alloc-like op LLVM lowerings into base and separate derived classes.

The previous code did the lowering to alloca, malloc, and aligned_malloc
in a single class with different code paths that are somewhat difficult to
follow.

This change moves the common code to a base class and has a separte
derived class per lowering target that contains the specifics.

Reviewed By: ftynse

Differential Revision: https://reviews.llvm.org/D88696

3 years ago[docs] Revise loop terminology reference.
Michael Kruse [Mon, 5 Oct 2020 15:21:57 +0000 (10:21 -0500)]
[docs] Revise loop terminology reference.

Motivated by D88183, this seeks to clarify the current loop nomenclature with added illustrations, examples for possibly unexpected situations (infinite loops not part of the "parent" loop, logical loops sharing the same header, ...), and clarification on what other sources may consider a loop. The current document also has multiple errors that are fixed here.

Some selected errors:
 * Loops a defined as strongly-connected components. A component a partition of all nodes, i.e. a subloop can never be a component. That is, the document as it currently is only covers top-level loops, even it also uses the term SCC for subloops.
 * "a block can be the header of two separate loops at the same time" (it is considered a single loop by LoopInfo)
 * "execute before some interesting event happens" (some interesting event is not well-defined)

Reviewed By: baziotis, Whitney

Differential Revision: https://reviews.llvm.org/D88408

3 years agoRevert SVML support for sqrt
Wenlei He [Mon, 5 Oct 2020 15:12:54 +0000 (08:12 -0700)]
Revert SVML support for sqrt

As was brought up in D87169 by @craig.topper we shouldn't map llvm.sqrt to svml since there is a faster native instruction.
https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm_sqrt_p&expand=5824,5823,5356,5823,5825,5365,5356

Reviewed By: craig.topper

Differential Revision: https://reviews.llvm.org/D88620

3 years ago[OpenMP] Add Error Handling for Conflicting Pointer Sizes for Target Offload
Joseph Huber [Sun, 4 Oct 2020 22:12:01 +0000 (18:12 -0400)]
[OpenMP] Add Error Handling for Conflicting Pointer Sizes for Target Offload

Summary:
This patch adds an error to Clang that detects if OpenMP offloading is
used between two architectures with incompatible pointer sizes. This
ensures that the data mapping can be done correctly and solves an issue
in code generation generating the wrong size pointer. This patch adds a
new lit substitution, %omp_powerpc_triple that, if the system is 32-bit or
64-bit, sets the powerpc triple accordingly. This was required to fix
some OpenMP tests that automatically populated the target architecture.

Reviewers: jdoerfert

Subscribers: cfe-commits guansong sstefan1 yaxunl delcypher

Tags: OpenMP clang LLVM

Differential Revision: https://reviews.llvm.org/D88594

3 years ago[OpenMP][Tests] NFC: fix flaky test failure caused by rare scheduling
Joachim Protze [Mon, 5 Oct 2020 11:30:22 +0000 (13:30 +0200)]
[OpenMP][Tests] NFC: fix flaky test failure caused by rare scheduling

The worker thread can start execution of the task before creation of the second task
Fixes the spurious failure reported in https://reviews.llvm.org/D61657

3 years ago[SystemZ] Add support for .insn directives for vector instructions.
Jonas Paulsson [Fri, 25 Sep 2020 16:34:17 +0000 (18:34 +0200)]
[SystemZ] Add support for .insn directives for vector instructions.

Support VRI, VRR, VRS, VRV, VRX, VSI instruction formats with the .insn
directive.

Review: Ulrich Weigand
Differential Revision: https://reviews.llvm.org/D88357

3 years ago[ARM]Fold select_cc(vecreduce_[u|s][min|max], x) into VMINV or VMAXV
Sam Tebbs [Wed, 23 Sep 2020 10:43:27 +0000 (11:43 +0100)]
[ARM]Fold select_cc(vecreduce_[u|s][min|max], x) into VMINV or VMAXV

    This folds a select_cc or select(set_cc) of a max or min vector reduction with a scalar value into a VMAXV or VMINV.

    Differential Revision: https://reviews.llvm.org/D87836

3 years ago[mlir][Linalg] Canonicalize TensorCastOp away when it feeds a LinalgOp.
Nicolas Vasilache [Mon, 5 Oct 2020 14:36:19 +0000 (14:36 +0000)]
[mlir][Linalg] Canonicalize TensorCastOp away when it feeds a LinalgOp.

This canonicalization is the counterpart of MemRefCastOp -> LinalgOp but on tensors.

This is needed to properly canonicalize post linalg tiling on tensors.

Differential Revision: https://reviews.llvm.org/D88729

3 years ago[VPlan] Clean up uses/operands on VPBB deletion.
Florian Hahn [Sat, 3 Oct 2020 16:40:42 +0000 (17:40 +0100)]
[VPlan] Clean up uses/operands on VPBB deletion.

Update the code responsible for deleting VPBBs and recipes to properly
update users and release operands.

This is another preparation for D84680 & following patches towards
enabling modeling def-use chains in VPlan.

3 years ago[Parser] ParseMicrosoftAsmStatement - Replace bit '|' operator with logical '||'...
Simon Pilgrim [Mon, 5 Oct 2020 13:23:13 +0000 (14:23 +0100)]
[Parser] ParseMicrosoftAsmStatement - Replace bit '|' operator with logical '||' operator. (PR47071)

Fixes static analysis warning.

3 years ago[clangd] Add isKeyword function.
Haojian Wu [Mon, 5 Oct 2020 13:10:53 +0000 (15:10 +0200)]
[clangd] Add isKeyword function.

This will be used in rename for doing basic name validation.

Differential Revision: https://reviews.llvm.org/D88810

3 years ago[LV] Regenerate test. NFC
David Green [Mon, 5 Oct 2020 12:46:15 +0000 (13:46 +0100)]
[LV] Regenerate test. NFC

This just reruns the update script to add the new
[[LOOP0:!llvm.loop !.*]] checks to remove them from
other diffs.

3 years ago[ValueTracking] canCreateUndefOrPoison - use APInt to check bounds instead of getZExt...
Simon Pilgrim [Mon, 5 Oct 2020 12:45:27 +0000 (13:45 +0100)]
[ValueTracking] canCreateUndefOrPoison - use APInt to check bounds instead of getZExtValue().

Fixes OSS Fuzz #26135

3 years ago[ASTImporter][AST] Fix structural equivalency crash on dependent FieldDecl
Gabor Marton [Thu, 1 Oct 2020 15:45:57 +0000 (17:45 +0200)]
[ASTImporter][AST] Fix structural equivalency crash on dependent FieldDecl

Differential Revision: https://reviews.llvm.org/D88665

3 years ago[AMDGPU][RegAlloc][SplitKit] Pre-commit test for D88821
Carl Ritson [Mon, 5 Oct 2020 11:26:27 +0000 (20:26 +0900)]
[AMDGPU][RegAlloc][SplitKit] Pre-commit test for D88821

3 years ago[TableGen] Added a function for identification of unsupported opcodes.
Dmitry Preobrazhensky [Mon, 5 Oct 2020 11:23:41 +0000 (14:23 +0300)]
[TableGen] Added a function for identification of unsupported opcodes.

This change implements generation of a function which may be used by a backend to check if a given instruction is supported for a specific subtarget.

Reviewers: sdesmalen

Differential Revision: https://reviews.llvm.org/D88214

3 years ago[clangd] Remove unused using-decls in TypeHierarchyTests, NFC.
Haojian Wu [Mon, 5 Oct 2020 11:14:53 +0000 (13:14 +0200)]
[clangd] Remove unused using-decls in TypeHierarchyTests, NFC.

3 years ago[AST][RecoveryExpr] Fix a crash on undeduced type.
Haojian Wu [Mon, 5 Oct 2020 10:52:03 +0000 (12:52 +0200)]
[AST][RecoveryExpr] Fix a crash on undeduced type.

We should not capture the type if the function return type is undeduced.

Reviewed By: adamcz

Differential Revision: https://reviews.llvm.org/D87350

3 years agoReland "[lldb] Don't send invalid region addresses to lldb server"
David Spickett [Thu, 24 Sep 2020 13:50:41 +0000 (14:50 +0100)]
Reland "[lldb] Don't send invalid region addresses to lldb server"

This reverts commit c65627a1fe3be7521fc232d633bb6df577f55269.

The test immediately after the new invalid symbol test was
failing on Windows. This was because when we called
VirtualQueryEx to get the region info for 0x0,
even if it succeeded we would call GetLastError.

Which must have picked up the last error that was set while
trying to lookup "not_an_address". Which happened to be 2.
("The system cannot find the file specified.")

To fix this only call GetLastError when we know VirtualQueryEx
has failed. (when it returns 0, which we were also checking for anyway)

Also convert memory region to an early return style
to make the logic clearer.

Reviewed By: labath, stella.stamenova

Differential Revision: https://reviews.llvm.org/D88229

3 years ago[AMDGPU] Use tablegen for argument indices
Sebastian Neubauer [Wed, 30 Sep 2020 12:15:24 +0000 (14:15 +0200)]
[AMDGPU] Use tablegen for argument indices

Use tablegen generic tables to get the index of image intrinsic
arguments.
Before, the computation of which image intrinsic argument is at which
index was scattered in a few places, tablegen, the SDag instruction
selection and GlobalISel. This patch changes that, so only tablegen
contains code to compute indices and the ImageDimIntrinsicInfo table
provides these information.

Differential Revision: https://reviews.llvm.org/D86270

3 years ago[mlir] Fix SubViewOp doc in .td
Nicolas Vasilache [Mon, 5 Oct 2020 09:44:27 +0000 (05:44 -0400)]
[mlir] Fix SubViewOp doc in .td

3 years ago[VE] Support register and frame-index pair correctly
Kazushi (Jam) Marukawa [Mon, 21 Sep 2020 08:17:29 +0000 (17:17 +0900)]
[VE] Support register and frame-index pair correctly

Support register and frame-index pair correctly as operands of
generic load/store instrucitons, e.g. LD1BZXrri, STLrri, and etc.
Add regression tests also.

Differential Revision: https://reviews.llvm.org/D88779

3 years agoPromote transpose from linalg to standard dialect
Benjamin Kramer [Wed, 30 Sep 2020 17:19:04 +0000 (19:19 +0200)]
Promote transpose from linalg to standard dialect

While affine maps are part of the builtin memref type, there is very
limited support for manipulating them in the standard dialect. Add
transpose to the set of ops to complement the existing view/subview ops.
This is a metadata transformation that encodes the transpose into the
strides of a memref.

I'm planning to use this when lowering operations on strided memrefs,
using the transpose to remove the stride without adding a dependency on
linalg dialect.

Differential Revision: https://reviews.llvm.org/D88651

3 years ago[AMDGPU] Make bfe patterns divergence-aware
Jay Foad [Fri, 25 Sep 2020 15:07:27 +0000 (16:07 +0100)]
[AMDGPU] Make bfe patterns divergence-aware

This tends to increase code size but more importantly it reduces vgpr
usage, and could avoid costly readfirstlanes if the result needs to be
in an sgpr.

Differential Revision: https://reviews.llvm.org/D88580

3 years ago[AMDGPU] Split R600 and GCN bfe patterns
Jay Foad [Fri, 25 Sep 2020 14:55:02 +0000 (15:55 +0100)]
[AMDGPU] Split R600 and GCN bfe patterns

This is in preparation for making the GCN patterns divergence-aware.
NFC.

Differential Revision: https://reviews.llvm.org/D88579

3 years ago[TableGen][GlobalISel] add handling of nested *_SUBREG
Gabriel Hjort Åkerlund [Mon, 5 Oct 2020 08:28:50 +0000 (10:28 +0200)]
[TableGen][GlobalISel] add handling of nested *_SUBREG

When nesting INSERT_SUBREG and EXTRACT_SUBREG, GlobalISelEmitter would
fail to find the register class of the nested node. This patch fixes
that for registers with subregs.

Reviewed By: arsenm

Differential Revision: https://reviews.llvm.org/D88487

3 years ago[AST][RecoveryExpr] Popagate the error-bit from a VarDecl's initializer to DeclRefExpr.
Haojian Wu [Mon, 5 Oct 2020 08:35:29 +0000 (10:35 +0200)]
[AST][RecoveryExpr] Popagate the error-bit from a VarDecl's initializer to DeclRefExpr.

The error-bit was missing, if a DeclRefExpr (which refers to a VarDecl
with a contains-errors initializer).

It could cause different violations in clang -- the DeclRefExpr is value-dependent,
but not contains-errors, `ABC<DeclRefExpr>` could produce a non-error
and non-dependent type in non-template context, which will lead to
crashes in constexpr evaluation.

Reviewed By: sammccall

Differential Revision: https://reviews.llvm.org/D86048

3 years ago[DebugInfo] Improve dbg preservation in LSR.
Markus Lavin [Mon, 5 Oct 2020 07:27:30 +0000 (09:27 +0200)]
[DebugInfo] Improve dbg preservation in LSR.

Use SCEV to salvage additional @llvm.dbg.value that have turned into
referencing undef after transformation (and traditional
salvageDebugInfo). Before transformation compute SCEV for each
@llvm.dbg.value in the loop body and store it (along side its current
DIExpression). After transformation update those @llvm.dbg.value now
referencing undef by comparing its stored SCEV to the SCEV of the
current loop-header PHI-nodes. Allow match with offset by inserting
compensation code in the DIExpression.

Fixes : PR38815

Differential Revision: https://reviews.llvm.org/D87494

3 years ago[RISCV][ASAN] mark asan as supported for RISCV64 and enable tests
Alexey Baturo [Sun, 4 Oct 2020 13:51:04 +0000 (16:51 +0300)]
[RISCV][ASAN] mark asan as supported for RISCV64 and enable tests

[11/11] patch series to port ASAN for riscv64

These changes allow using ASAN on RISCV64 architecture.
The majority of existing tests are passing. With few exceptions (see below).
Tests we run on qemu and on "HiFive Unleashed" board.

Tests run:

```
Asan-riscv64-inline-Test  - pass
Asan-riscv64-inline-Noinst-Test  - pass
Asan-riscv64-calls-Noinst-Test  - pass
Asan-riscv64-calls-Test  - pass
```

Lit tests:

```
RISCV64LinuxConfig (282 supported, few failures)
RISCV64LinuxDynamicConfig (289 supported, few failures)
```

Lit failures:

```
TestCases/malloc_context_size.cpp - asan works, but backtrace misses some calls
TestCases/Linux/malloc_delete_mismatch.cpp - asan works, but backtrace misses some calls
TestCases/Linux/static_tls.cpp - "Can't guess glibc version" (under debugging)
TestCases/asan_and_llvm_coverage_test.cpp - missing libclang_rt.profile-riscv64.a
```

These failures are under debugging currently and shall be addressed in a
subsequent commits.

Depends On D87581

Reviewed By: eugenis, vitalybuka

Differential Revision: https://reviews.llvm.org/D87582

3 years ago[llvm] Rename DwarfFile to DWARFFile to fix ODR violation (NFC)
Jonas Devlieghere [Mon, 5 Oct 2020 06:46:26 +0000 (23:46 -0700)]
[llvm] Rename DwarfFile to DWARFFile to fix ODR violation (NFC)

Rename the DwarfFile class in DWARFLinker to DWARFFile. This is
consistent with the other DWARF classes and avoids a ODR violation with
the DwarfFile class in AsmPrinter.

3 years ago[lldb] [test/Register] Attempt to fix x86-fp-read.test on Darwin
Michał Górny [Mon, 5 Oct 2020 06:03:46 +0000 (23:03 -0700)]
[lldb] [test/Register] Attempt to fix x86-fp-read.test on Darwin

Darwin seems to use stmmN instead of stN. Use a regex to accept both.

Also try to actually clear st(7).

Differential revision: https://reviews.llvm.org/D88795

3 years ago[X86] MWAITX_SAVE_RBX should not have EBX as an implicit use.
Craig Topper [Mon, 5 Oct 2020 03:34:31 +0000 (20:34 -0700)]
[X86] MWAITX_SAVE_RBX should not have EBX as an implicit use.

RBX was copied to a virtual register before this instruction
was created. And the EBX input for the final MWAITX is still
in a virtual register. So EBX isn't read by this pseudo.

3 years agollvm-dwarfdump: Don't try to parse rnglist tables when dumping CUs
David Blaikie [Mon, 5 Oct 2020 02:06:28 +0000 (19:06 -0700)]
llvm-dwarfdump: Don't try to parse rnglist tables when dumping CUs

It's not possible to do this in complete generality - a CU using a
sec_offset DW_AT_ranges has no way of knowing where its rnglists
contribution starts, so should not attempt to parse any full rnglist
table/header to do so. And even using FORM_rnglistx there's no need to
parse the header - the offset can be computed using the CU's DWARF
format (32 or 64) to compute offset entry sizes, and then the list
parsed at that offset without ever trying to find a rnglist contribution
header immediately prior to the rnglists_base.

3 years ago[HIP] Fix -fgpu-allow-device-init option
Yaxun (Sam) Liu [Wed, 30 Sep 2020 03:52:03 +0000 (23:52 -0400)]
[HIP] Fix -fgpu-allow-device-init option

The option needs to be passed to both host and device compilation.

Differential Revision: https://reviews.llvm.org/D88550

3 years ago[HIP] Fix default output file for -E
Yaxun (Sam) Liu [Fri, 2 Oct 2020 12:08:26 +0000 (08:08 -0400)]
[HIP] Fix default output file for -E

By convention the default output file for -E is "-" (stdout).
This is expected by tools like ccache, which uses output
of -E to determine if a file and its dependence has changed.

Currently clang does not use stdout as default output file for -E
for HIP, which causes ccache not working.

This patch fixes that.

Differential Revision: https://reviews.llvm.org/D88730

3 years agoRecommit "[HIP] Add option --gpu-instrument-lib="
Yaxun (Sam) Liu [Mon, 5 Oct 2020 01:32:35 +0000 (21:32 -0400)]
Recommit "[HIP] Add option --gpu-instrument-lib="

recommit 64f7790e7d2309b5d38949921a256acf8068e659 after
fixing hip-device-libs.hip.

3 years agoRevert "[HIP] Add option --gpu-instrument-lib="
Yaxun (Sam) Liu [Mon, 5 Oct 2020 01:27:29 +0000 (21:27 -0400)]
Revert "[HIP] Add option --gpu-instrument-lib="

This reverts commit 64f7790e7d2309b5d38949921a256acf8068e659 due
to regression in hip-device-libs.hip.

3 years ago[HIP] Add option --gpu-instrument-lib=
Yaxun (Sam) Liu [Wed, 30 Sep 2020 12:01:02 +0000 (08:01 -0400)]
[HIP] Add option --gpu-instrument-lib=

Add an option --gpu-instrument-lib= to allow users to specify
an instrument device library. This is for supporting -finstrument
in device code for debugging/profiling tools.

Differential Revision: https://reviews.llvm.org/D88557

3 years agollvm-dwarfdump: Add support for DW_RLE_startx_endx
David Blaikie [Mon, 5 Oct 2020 00:50:24 +0000 (17:50 -0700)]
llvm-dwarfdump: Add support for DW_RLE_startx_endx

3 years ago[X86] Remove MWAITX_SAVE_EBX pseudo instruction. Always save/restore the full %rbx...
Craig Topper [Sun, 4 Oct 2020 23:25:35 +0000 (16:25 -0700)]
[X86] Remove MWAITX_SAVE_EBX pseudo instruction. Always save/restore the full %rbx register even in gnux32.

ebx/rbx only needs to be saved when 64-bit registers are supported
anyway. It should be fine to save/restore the whole rbx register
even in gnux32 where the base is technically just ebx.

This matches what we do for cmpxchg16b where rbx is saved/restored
regardless of gnux32.

3 years agollvm-dwarfdump: Print addresses in debug_line to the parsed address size
David Blaikie [Sun, 4 Oct 2020 23:01:05 +0000 (16:01 -0700)]
llvm-dwarfdump: Print addresses in debug_line to the parsed address size

3 years ago[NewPM] collapsing nested pass mangers of the same type
Yuanfang Chen [Sat, 3 Oct 2020 00:16:22 +0000 (17:16 -0700)]
[NewPM] collapsing nested pass mangers of the same type

This is one of the reason for extra invalidations in D84959. In
practice, I don't think we have use cases needing this. This simplifies
the pipeline a bit and prune corner cases when considering
invalidations.

Reviewed By: asbirlea

Differential Revision: https://reviews.llvm.org/D85676

3 years ago[NFCI] Remove unnecessary trailing undef in RuntimeLibcalls.def
Yuanfang Chen [Sat, 3 Oct 2020 00:13:27 +0000 (17:13 -0700)]
[NFCI] Remove unnecessary trailing undef in RuntimeLibcalls.def

All uses of the file undef the macro already.

3 years agollvm-dwarfdump: Dump address forms in their encoded length rather than always in...
David Blaikie [Sun, 4 Oct 2020 22:42:03 +0000 (15:42 -0700)]
llvm-dwarfdump: Dump address forms in their encoded length rather than always in 64 bits

Few places did this already - refactor them all into a common helper.

3 years ago[DomTree] findNearestCommonDominator: assert the nodes are in tree
Fangrui Song [Sun, 4 Oct 2020 22:34:41 +0000 (15:34 -0700)]
[DomTree] findNearestCommonDominator: assert the nodes are in tree

i.e. they cannot be unreachable from the entry (which usually indicate usage errors).
This change allows the removal of some nullptr checks.

Reviewed By: kuhar

Differential Revision: https://reviews.llvm.org/D88758

3 years ago[X86] Correct the implicit defs/uses for the MWAITX pseudo instructions.
Craig Topper [Sun, 4 Oct 2020 20:53:13 +0000 (13:53 -0700)]
[X86] Correct the implicit defs/uses for the MWAITX pseudo instructions.

MWAITX doesn't touch EFLAGS so no pseudos should def EFLAGS.

The SAVE_EBX/RBX pseudos only needs to def the EBX register that
the expansion overwrites. The EAX and ECX registers are only read.

The pseudo emitted during isel that is used by the custom inserter
shouldn't have any implicit defs or uses since everything is in
vregs.

3 years ago[X86] Remove usesCustomInserter from MWAITX_SAVE_EBX and MWAITX_SAVE_RBX. NFC
Craig Topper [Sun, 4 Oct 2020 19:17:54 +0000 (12:17 -0700)]
[X86] Remove usesCustomInserter from MWAITX_SAVE_EBX and MWAITX_SAVE_RBX. NFC

These are now emitted by a CustomInserter rather than using a custom
inserter themselves.

3 years agoRevert "[RFC] Factor out repetitive cmake patterns for llvm-style projects"
Stephen Neuendorffer [Sun, 4 Oct 2020 22:17:34 +0000 (15:17 -0700)]
Revert "[RFC] Factor out repetitive cmake patterns for llvm-style projects"

This reverts commit e9b87f43bde8b5f0d8a79c5884fdce639b12e0ca.

There are issues with macros generating macros without an obvious simple fix
so I'm going to revert this and try something different.

3 years ago[Coroutines][NewPM] Fix coroutine tests under new pass manager
Arthur Eubanks [Mon, 14 Sep 2020 18:22:17 +0000 (11:22 -0700)]
[Coroutines][NewPM] Fix coroutine tests under new pass manager

Some new function parameter attributes are derived under NPM.

Reviewed By: rjmccall

Differential Revision: https://reviews.llvm.org/D88760

3 years ago[NFC][SCEV] Add a test with some patterns where we could treat inttoptr/ptrtoint...
Roman Lebedev [Sun, 4 Oct 2020 19:06:57 +0000 (22:06 +0300)]
[NFC][SCEV] Add a test with some patterns where we could treat inttoptr/ptrtoint as semi-transparent

3 years agollvm-dwarfdump: Skip tombstoned address ranges
David Blaikie [Sun, 4 Oct 2020 19:28:37 +0000 (12:28 -0700)]
llvm-dwarfdump: Skip tombstoned address ranges

Make the dumper & API a bit more informative by using the new tombstone
addresses to filter out or otherwise render more explicitly dead code
ranges.

3 years ago[MemCpyOpt] Add tests for call slot optimization with GEPs (NFC)
Nikita Popov [Sun, 4 Oct 2020 20:25:28 +0000 (22:25 +0200)]
[MemCpyOpt] Add tests for call slot optimization with GEPs (NFC)

3 years agoImplement callee/caller type checking for llvm.call
Mehdi Amini [Sat, 3 Oct 2020 03:30:21 +0000 (03:30 +0000)]
Implement callee/caller type checking for llvm.call

This aligns the behavior with the standard call as well as the LLVM verifier.

Reviewed By: ftynse, dcaballe

Differential Revision: https://reviews.llvm.org/D88362

3 years ago[MemCpyOpt] Don't use array allocas in tests (NFC)
Nikita Popov [Sun, 4 Oct 2020 19:46:50 +0000 (21:46 +0200)]
[MemCpyOpt] Don't use array allocas in tests (NFC)

Apparently querying dereferenceability of array allocations is
being intentionally penalized (https://reviews.llvm.org/D41398),
so avoid using them in tests.

3 years ago[X86] Remove an accidentally added file. NFC.
Martin Storsjö [Sun, 4 Oct 2020 19:30:55 +0000 (22:30 +0300)]
[X86] Remove an accidentally added file. NFC.

This file seems to have been accidentally added as part of commit
413577a8790407d75ba834fa5668c2632fe1851e.

3 years ago[SDA] Fix -Wunused-function in -DLLVM_ENABLE_ASSERTIONS=off builds
Fangrui Song [Sun, 4 Oct 2020 19:06:06 +0000 (12:06 -0700)]
[SDA] Fix -Wunused-function in -DLLVM_ENABLE_ASSERTIONS=off builds

3 years ago[gn build] Port 6c6cd5f8a97
LLVM GN Syncbot [Sun, 4 Oct 2020 19:10:39 +0000 (19:10 +0000)]
[gn build] Port 6c6cd5f8a97

3 years ago[X86] Sync AESENC/DEC Key Locker builtins with gcc.
Craig Topper [Sun, 4 Oct 2020 19:09:41 +0000 (12:09 -0700)]
[X86] Sync AESENC/DEC Key Locker builtins with gcc.

For the wide builtins, pass a single input and output pointer to
the builtins. Emit the GEPs and input loads from CGBuiltin.

3 years ago[X86] Synchronize the encodekey builtins with gcc. Don't assume void* is 16 byte...
Craig Topper [Sun, 4 Oct 2020 19:09:35 +0000 (12:09 -0700)]
[X86] Synchronize the encodekey builtins with gcc. Don't assume void* is 16 byte aligned.

We were taking multiple pointer arguments in the builtin.
gcc accepts a single void*.

The cast from void* to _m128i* caused the IR generation to assume
the pointer was aligned.

Instead make the builtin take a single void*, emit i8* GEPs to
adjust then cast to <2 x i64>* and perform a store with align of 1.

3 years ago[X86] Synchronize the loadiwkey builtin operand order with gcc version.
Craig Topper [Sun, 4 Oct 2020 19:09:29 +0000 (12:09 -0700)]
[X86] Synchronize the loadiwkey builtin operand order with gcc version.

3 years ago[X86] Consolidate wide Key Locker intrinsics into the same header as the other Key...
Craig Topper [Sun, 4 Oct 2020 19:09:21 +0000 (12:09 -0700)]
[X86] Consolidate wide Key Locker intrinsics into the same header as the other Key Locker intrinsics.

3 years ago[VPlan] Add VPRecipeBase::toVPUser helper (NFC).
Florian Hahn [Fri, 2 Oct 2020 18:01:49 +0000 (19:01 +0100)]
[VPlan] Add VPRecipeBase::toVPUser helper (NFC).

This adds a helper to convert a VPRecipeBase pointer to a VPUser, for
recipes that inherit from VPUser. Once VPRecipeBase directly inherits
from VPUser this helper can be removed.

3 years ago[VPlan] Account for removed users in replaceAllUsesWith.
Florian Hahn [Sat, 3 Oct 2020 16:39:35 +0000 (17:39 +0100)]
[VPlan] Account for removed users in replaceAllUsesWith.

Make sure we do not iterate using an invalid iterator.

Another small fix/step towards traversing the def-use chains in VPlan.

3 years ago[NFC][clang][codegen] Autogenerate a few ARM SVE tests that are being affected by...
Roman Lebedev [Sun, 4 Oct 2020 16:50:30 +0000 (19:50 +0300)]
[NFC][clang][codegen] Autogenerate a few ARM SVE tests that are being affected by an upcoming patch

3 years ago[PowerPC] Add builtins for xvtdiv(dp|sp) and xvtsqrt(dp|sp).
Esme-Yi [Sun, 4 Oct 2020 16:24:20 +0000 (16:24 +0000)]
[PowerPC] Add builtins for xvtdiv(dp|sp) and xvtsqrt(dp|sp).

Summary: This patch implements the builtins for xvtdivdp, xvtdivsp, xvtsqrtdp, xvtsqrtsp.
The instructions correspond to the following builtins:
int vec_test_swdiv(vector double v1, vector double v2);
int vec_test_swdivs(vector float v1, vector float v2);
int vec_test_swsqrt(vector double v1);
int vec_test_swsqrts(vector float v1);
This patch depends on D88274, which fixes the bug in copying from CRRC to GPRC/G8RC.

Reviewed By: steven.zhang, amyk

Differential Revision: https://reviews.llvm.org/D88278

3 years ago[SDAG] fold x * 0.0 at node creation time
Sanjay Patel [Sun, 4 Oct 2020 15:07:27 +0000 (11:07 -0400)]
[SDAG] fold x * 0.0 at node creation time

In the motivating case from https://llvm.org/PR47517
we create a node that does not get constant folded
before getNegatedExpression is attempted from some
other node, and we crash.

By moving the fold into SelectionDAG::simplifyFPBinop(),
we get the constant fold sooner and avoid the problem.

3 years ago[MemCpyOpt] Add additional call slot tests (NFC)
Nikita Popov [Sun, 4 Oct 2020 14:59:43 +0000 (16:59 +0200)]
[MemCpyOpt] Add additional call slot tests (NFC)

The case of a destination read between call and memcpy was not
covered anywhere (but is handled correctly).

However, a potentially throwing call between the call and the
memcpy appears to be miscompiled.

3 years ago[X86][SSE] isTargetShuffleEquivalent - ensure shuffle inputs are the correct size.
Simon Pilgrim [Sun, 4 Oct 2020 14:32:05 +0000 (15:32 +0100)]
[X86][SSE] isTargetShuffleEquivalent - ensure shuffle inputs are the correct size.

Preliminary patch for the next stage of PR45974 - we don't want to be creating 'padded' vectors on-the-fly at all in combineX86ShufflesRecursively, and only pad the source inputs if we have a definite match inside combineX86ShuffleChain.

This means that the inputs to combineX86ShuffleChain might soon be smaller than the final root value type, so we should ensure that isTargetShuffleEquivalent only matches with the inputs if they are the correct size.

3 years ago[RISCV][ASAN] instrumentation pass now uses proper shadow offset
Anatoly Parshintsev [Sun, 4 Oct 2020 12:26:50 +0000 (15:26 +0300)]
[RISCV][ASAN] instrumentation pass now uses proper shadow offset

[10/11] patch series to port ASAN for riscv64

Depends On D87580

Reviewed By: eugenis

Differential Revision: https://reviews.llvm.org/D87581

3 years ago[CodeGen] Improve likelihood branch weights
Mark de Wever [Sun, 4 Oct 2020 12:21:00 +0000 (14:21 +0200)]
[CodeGen] Improve likelihood branch weights

Bruno De Fraine discovered some issues with D85091. The branch weights
generated for `logical not` and `ternary conditional` were wrong. The
`logical and` and `logical or` differed from the code generated of
`__builtin_predict`.

Adjusted the generated code for the likelihood to match
`__builtin_predict`. The patch is based on Bruno's suggestions.

Differential Revision: https://reviews.llvm.org/D88363

3 years ago[RISCV][ASAN] support code for architecture-specific parts of asan
Alexey Baturo [Sun, 4 Oct 2020 09:38:06 +0000 (12:38 +0300)]
[RISCV][ASAN] support code for architecture-specific parts of asan

[9/11] patch series to port ASAN for riscv64

Depends On D87579

Reviewed By: luismarques

Differential Revision: https://reviews.llvm.org/D87580

3 years ago[OldPM] Pass manager: run SROA after (simple) loop unrolling
Roman Lebedev [Sun, 4 Oct 2020 08:27:07 +0000 (11:27 +0300)]
[OldPM] Pass manager: run SROA after (simple) loop unrolling

I have stumbled into this pretty accidentally, when rewriting
some spaghetti-like code into something more structured,
which involved using some `std::array<>`s. And to my surprise,
the `alloca`s remained, causing about `+160%` perf regression.

https://llvm-compile-time-tracker.com/compare.php?from=bb6f4d32aac3eecb51909f4facc625219307ee68&to=d563e66f40f9d4d145cb2050e41cb961e2b37785&stat=instructions
suggests that this has geomean compile-time cost of `+0.08%`.

Note that D68593 / cecc0d27ad58c0aed8ef9ed99bbf691e137a0f26
already did this chage for NewPM, but left OldPM in a pessimized state.

This fixes [[ https://bugs.llvm.org/show_bug.cgi?id=40011 | PR40011 ]], [[ https://bugs.llvm.org/show_bug.cgi?id=42794 | PR42794 ]] and probably some other reports.

Reviewed By: nikic, xbolva00

Differential Revision: https://reviews.llvm.org/D87972

3 years ago[RISCV][ASAN] unwind fixup
Alexey Baturo [Sun, 4 Oct 2020 07:31:30 +0000 (10:31 +0300)]
[RISCV][ASAN] unwind fixup

[8/11] patch series to port ASAN for riscv64

Depends On D87577

Reviewed By: eugenis, vitalybuka

Differential Revision: https://reviews.llvm.org/D87579

3 years ago[lldb] [test/Register] Mark new FP reg tests XFAIL on Darwin
Jonas Devlieghere [Sun, 4 Oct 2020 05:36:28 +0000 (22:36 -0700)]
[lldb] [test/Register] Mark new FP reg tests XFAIL on Darwin

This is failing on GreenDragon:
http://green.lab.llvm.org/green/view/LLDB/job/lldb-cmake/24066/

3 years ago[X86] LOADIWKEY, ENCODEKEY128 and ENCODEKEY256 clobber EFLAGS.
Craig Topper [Sun, 4 Oct 2020 04:54:59 +0000 (21:54 -0700)]
[X86] LOADIWKEY, ENCODEKEY128 and ENCODEKEY256 clobber EFLAGS.

3 years ago[X86] Add memory operand to AESENC/AESDEC Key Locker instructions.
Craig Topper [Sun, 4 Oct 2020 04:42:06 +0000 (21:42 -0700)]
[X86] Add memory operand to AESENC/AESDEC Key Locker instructions.

This removes FIXMEs from selectAddr.

3 years ago[X86] Move ENCODEKEY128/256 handling from lowering to selection.
Craig Topper [Sun, 4 Oct 2020 00:47:52 +0000 (17:47 -0700)]
[X86] Move ENCODEKEY128/256 handling from lowering to selection.

We should avoid emitting MachineSDNodes from lowering.

We can use the the implicit def handling in InstrEmitter to avoid
manually copying from each xmm result register. We only need to
manually emit the copies for the implicit uses.

3 years ago[X86] Remove X86ISD::MWAITX_DAG. Just match the intrinsic to the custom inserter...
Craig Topper [Sun, 4 Oct 2020 00:12:23 +0000 (17:12 -0700)]
[X86] Remove X86ISD::MWAITX_DAG. Just match the intrinsic to the custom inserter pseudo instruction during isel.

3 years ago[RFC] Factor out repetitive cmake patterns for llvm-style projects
Stephen Neuendorffer [Mon, 3 Aug 2020 18:24:15 +0000 (11:24 -0700)]
[RFC] Factor out repetitive cmake patterns for llvm-style projects

New projects (particularly out of tree) have a tendency to hijack the existing
llvm configuration options and build targets (add_llvm_library,
add_llvm_tool).  This can lead to some confusion.

1) When querying a configuration variable, do we care about how LLVM was
configured, or how these options were configured for the out of tree project?
2) LLVM has lots of defaults, which are easy to miss
(e.g. LLVM_BUILD_TOOLS=ON).  These options all need to be duplicated in the
CMakeLists.txt for the project.

In addition, with LLVM Incubators coming online, we need better ways for these
incubators to do things the "LLVM way" without alot of futzing.  Ideally, this
would happen in a way that eases importing into the LLVM monorepo when
projects mature.

This patch creates some generic infrastructure in llvm/cmake/modules and
refactors MLIR to use this infrastructure.  This should expand to include
add_xxx_library, which is by far the most complicated bit of building a
project correctly, since it has to deal with lots of shared library
configuration bits.  (MLIR currently hijacks the LLVM infrastructure for
building libMLIR.so, so this needs to get refactored anyway.)

Differential Revision: https://reviews.llvm.org/D85140

3 years ago[X86] Add X86ISD opcodes for the Key Locker AESENC*KL and AESDEC*KL instructions
Craig Topper [Sat, 3 Oct 2020 23:55:18 +0000 (16:55 -0700)]
[X86] Add X86ISD opcodes for the Key Locker AESENC*KL and AESDEC*KL instructions

Instead of emitting MachineSDNodes during lowering, emit X86ISD
opcodes. These opcodes will either be selected by tablegen
patterns or custom selection code.

Emitting MachineSDNodes during lowering is uncommon so this makes
things more consistent. It also allows selectAddr to be called to
perform address matching during instruction selection.

I had trouble getting tablegen to accept XMM0-XMM7 as results in
an isel pattern for the WIDE instructions so I had to use custom
instruction selection.

3 years agoAdd indented raw_ostream class
Jacques Pienaar [Sat, 3 Oct 2020 22:17:38 +0000 (15:17 -0700)]
Add indented raw_ostream class

Class simplifies keeping track of the indentation while emitting. For every new line the current indentation is simply prefixed (if not at start of line, then it just emits as normal). Add a simple Region helper that makes it easy to have the C++ scope match the emitted scope.

Use this in op doc generator and rewrite generator.

This reverts revert commit be185b6a7355fdfeb1c31df2e1272366fe58b01f addresses shared lib failure by fixing up cmake files.

Differential Revision: https://reviews.llvm.org/D84107

3 years ago[Object][MachO] Refactor MachOUniversalWriter
Alexander Shaposhnikov [Sat, 3 Oct 2020 21:18:38 +0000 (14:18 -0700)]
[Object][MachO] Refactor MachOUniversalWriter

This diff refactors writeUniversalBinary and adds writeUniversalBinaryToBuffer.
This is a preparation for adding support for universal binaries to llvm-objcopy.

Test plan: make check-all

Differential revision: https://reviews.llvm.org/D88372

3 years ago[MC] Assert that MCRegUnitIterator operates over MCRegisters
Mircea Trofin [Thu, 1 Oct 2020 21:35:11 +0000 (14:35 -0700)]
[MC] Assert that MCRegUnitIterator operates over MCRegisters

The signature of the ctor expects a MCRegister, but currently any
unsigned value can be converted to a MCRegister.

This patch checks that indeed the provided value is a physical register
only. We want to eventually stop implicitly converting unsigned or
Register to MCRegister (which is incorrect). The next step after this
patch is changing uses of MCRegUnitIterator to explicitly cast Register
or unsigned values to MCRegister. To that end, this patch also
introduces 2 APIs that make that conversion checked and explicit.

Differential Revision: https://reviews.llvm.org/D88705

3 years ago[lldb] [test/Register] Mark new FP reg tests XFAIL on Windows
Michał Górny [Sat, 3 Oct 2020 20:16:29 +0000 (22:16 +0200)]
[lldb] [test/Register] Mark new FP reg tests XFAIL on Windows

3 years ago[VPlan] Properly update users when updating operands.
Florian Hahn [Sat, 3 Oct 2020 15:31:49 +0000 (16:31 +0100)]
[VPlan] Properly update users when updating operands.

When updating operands of a VPUser, we also have to adjust the list of
users for the new and old VPValues. This is required once we start
transitioning recipes to become VPValues.

3 years ago[NFC][InstCombine] Autogenerate a few tests being affected by an upcoming patch
Roman Lebedev [Sat, 3 Oct 2020 19:46:50 +0000 (22:46 +0300)]
[NFC][InstCombine] Autogenerate a few tests being affected by an upcoming patch

3 years ago[NFC][PhaseOrdering] Add a test showing new inttoptr casts after SROA due to InstComb...
Roman Lebedev [Sat, 3 Oct 2020 19:32:46 +0000 (22:32 +0300)]
[NFC][PhaseOrdering] Add a test showing new inttoptr casts after SROA due to InstCombine (PR47592)

We could either try to make SROA more picky to the new type
and/or prevent InstCombine from creating the original problem (converting load-stores to operate on ints),
and/or make InstCombine recover the situation by cleaning up all that cruft.

3 years ago[LV] Add another test case with unsinkable first-order recurrences.
Florian Hahn [Sat, 3 Oct 2020 19:41:41 +0000 (20:41 +0100)]
[LV] Add another test case with unsinkable first-order recurrences.