Changes

llvm-objdump: refactor SourcePrinter into separate file. NFC.

Preparatory patch for MachO feature.

[mlir] Support masked N-D vector transfer ops in ProgressiveVectorToSCF.

Mask vectors are handled similar to data vectors in N-D TransferWriteOp. They are copied into a temporary memory buffer, which can be indexed into with non-constant values.

Differential Revision: https://reviews.llvm.org/D101136

[gn build] Port c623945d707c

Revert "[Clang] Propagate guaranteed alignment for malloc and others"

This reverts commit c2297544c04764237cedc523083c7be2fb3833d4. Some buildbots are broken.

[X86][AMX][NFC] Make comparison operators to be complete

The previous D101039 didn't fix the SmallSet insertion issue, due to we
always return false for the comparison between 2 different nonnull BBs.
This patch makes the the comparison to be complete by comparing `MBB`
first, so that we can always get the invariant order by a single
operator.

Re-reapply "[DebugInfo] Use variadic debug values to salvage BinOps and GEP instrs with non-const operands"

Previous build failures were caused by an error in bitcode reading and
writing for DIArgList metadata, which has been fixed in e5d844b587.
There were also some unnecessary asserts that were being triggered on
certain builds, which have been removed.

This reverts commit dad5caa59e6b2bde8d6cf5b64a972c393c526c82.

Recommit "[NewGVN] Track simplification dependencies for phi-of-ops."

This recommits 4f5da356ff35a218f23f0b0c4d08aee90da7de6e, including
explicit implementations of move a constructor and deleted copy
constructors/assignment operators, to fix failures with some compilers.

This reverts the revert 74854d00e854196445727a49df58fe5768d9ed5b.

[doc] Clarify constrained fcmps behavior

Reviewed By: uweigand

Differential Revision: https://reviews.llvm.org/D101053

[dexter] Add keyword argument 'on_line' to DexLabel

Add optional keyword argument 'on_line' to DexLabel to label the specifed line
instead of the line the command is found on.

This will be helpful when used alongside DexDeclareFile (D99651).

Reviewed By: TWeaver

Differential Revision: https://reviews.llvm.org/D101055

[lldb][NFC] Remove a stray unicode character in the LLDB test docs

There was a U+2028 character in this line (a special paragraph separator).

[RISCV] Custom lower vector F(MIN|MAX)NUM to vf(min|max)

This patch adds support for both scalable- and fixed-length vector code
lowering of the llvm.minnum and llvm.maxnum intrinsics to the equivalent
RVV instructions.

Reviewed By: craig.topper

Differential Revision: https://reviews.llvm.org/D101035

[clang] Do not crash on template specialization following a fatal error

There was a missing isInvalid() check leading to an attempt to
instantiate template with an empty instantiation stack.

Differential Revision: https://reviews.llvm.org/D100675

[InstCombine] Fixed crash when setting align attr for memalign

Reland "[Clang] Propagate guaranteed alignment for malloc and others"

This relands commit 6914a0ed2b30924b188968e59a83efa07ac5fe57. Crash in InstCombine was fixed.

[InstCombine][NFC] add tests for printf("%s", str) --> puts(str)/noop transformation.

Split off from D100724.

Reviewed By: xbolva00

Differential Revision: https://reviews.llvm.org/D101149

[InstCombine] Fixed newly added tests; NFC

[llvm][NFC] Fix assert indentation

This triggers GCC's misleading-indentation checker.

AMDGPU: Fix assert on inline asm on gfx90a

This was assuming all mayLoad instructions have one def.

[X86] combineSetCCAtomicArith - pull out repeated ops. NFCI.

Reduces diff in D101074

[lld-macho] Have tests default to targeting macos 10.15

D101114 enforced proper version checks, which exposed a variety of version
mismatch issues in our tests. We previously changed the test inputs to
target 10.0, which was the simpler thing to do, but we should really
just have our lit.local.cfg default to targeting 10.15, which is what is done
here. We're not likely to ever have proper support for the older versions
anyway, as that would require more work for unclear benefit; for instance,
llvm-mc seems to generate a different compact unwind format for older macOS
versions, which would cause our compact-unwind.s test to fail.

Targeting 10.15 by default causes the following behavioral changes:
* `__mh_execute_header` is now a section symbol instead of an absolute symbol
* LC_BUILD_VERSION gets emitted instead of LC_VERSION_MIN_MACOSX. The former is
  32 bytes in size whereas the latter is 16 bytes, so a bunch of hardcoded
  address offsets in our tests had to be updated.
* >= 10.6 executables are PIE by default

Note that this diff was stacked atop of a local revert of most of the test
changes in rG8c17a875150f8e736e8f9061ddf084397f45f4c5, to make review easier.

Reviewed By: #lld-macho, oontvoo

Differential Revision: https://reviews.llvm.org/D101119

[InstCombine] Added tests for PR50096; NFC

[OpenCL] Fix typo in the test.

[OpenMP] Replace global InfoLevel with a reference to an internal one.

Summary:
This patch improves the implementation of D100774 by replacing the global
variable introduced with a function that returns a reference to an internal
one. This removes the need to define the variable in every plugin that uses it.

Reviewed By: JonChesterfield

Differential Revision: https://reviews.llvm.org/D101102

[TableGen] [docs] Improve description of NAME in Programmer's Reference

Also use "parent class" consistently and add a note about the term.

Differential Revision: https://reviews.llvm.org/D100867

[X86] Add Win32/64 mulo test coverage

Part of an investigation to solve the windows regressions caused by rG13ec913bdf50

[TableGen] Correct some comments in the TableGen parser [NFC]

Differential Revision: https://reviews.llvm.org/D101088

[AMDGPU] Save WWM registers in functions

The values of registers in inactive lanes needs to be saved during
function calls.

Save all registers used for whole wave mode, similar to how it is done
for VGPRs that are used for SGPR spilling.

Differential Revision: https://reviews.llvm.org/D99429

[Hexagon] Remove redundant HVX intrinsic selection patterns, NFC

Deleted HexagonMapAsm2IntrinV65.gen.td that wasn't included anywhere,
moved V6_vrmpy*_rtt* patterns to HexagonIntrinsics.td.

Touch CMakeLists.txt to force re-cmake (somehow the unused file was
listed as a dependency in the generated makefiles).

[AMDGPU][NFC] Update auto-gen test

Most likely the "glc" was not added to the test when
the volatile loads started generating those bits.

Revert "[AMDGPU] Save WWM registers in functions"

This reverts commit 91464c30bfcf731ccb7f9d6ef6d26e8c1657a6e6.

Seems to break tests on windows.

[AMDGPU] Fix typo in implicit operand lists

Several tests had a typo where they mentioned sgpr17 twice instead of
sgpr17 and sgpr27. This had a significant effect on the
"scavenge_sgpr_pei_no_sgprs" tests because there was actually an sgpr
available, namely sgpr27.

Differential Revision: https://reviews.llvm.org/D100960

[AArch64][SVE] Fix bug in lowering of fixed-length integer vector divides

The function AArch64TargetLowering::LowerFixedLengthVectorIntDivideToSVE
previously assumed the operands were full vectors, but this is not
always true. This function would produce bogus if the division operands
are not full vectors, resulting in miscompiles when dividing 8-bit or
16-bit vectors.

The fix is to perform an extend + div + truncate for non-full vectors,
instead of the usual unpacking and unzipping logic. This is an additive
change which reduces the non-full integer vector divisions to a pattern
recognised by the existing lowering logic.

For future reference, an example of code that would miscompile before
this patch is below:

     1  int8_t foo(unsigned N, int8_t *a, int8_t *b, int8_t *c) {
     2      int8_t result = 0;
     3      for (int i = 0; i < N; ++i) {
     4          result += (a[i] / b[i]) / c[i];
     5      }
     6      return result;
     7  }

Differential Revision: https://reviews.llvm.org/D100370

[TTI] Fix ScalarizationCost initialization.

In cases when ScalarizationCostPassed has no value, UINT_MAX is actually used
for cost estimation in `return ScalarCalls * ScalarCost + ScalarizationCost`.

Reviewed By: sdesmalen

Differential Revision: https://reviews.llvm.org/D101099

[TTI] NFC: Use InstructionCost to store ScalarizationCost in IntrinsicCostAttributes.

This patch migrates the TTI cost interfaces to return an InstructionCost.

See this patch for the introduction of the type: https://reviews.llvm.org/D91174
See this thread for context: http://lists.llvm.org/pipermail/llvm-dev/2020-November/146408.html

Reviewed By: samparker

Differential Revision: https://reviews.llvm.org/D101151

[TTI] NFC: Change getAddressComputationCost to return InstructionCost

This patch migrates the TTI cost interfaces to return an InstructionCost.

See this patch for the introduction of the type: https://reviews.llvm.org/D91174
See this thread for context: http://lists.llvm.org/pipermail/llvm-dev/2020-November/146408.html

Differential Revision: https://reviews.llvm.org/D100561

[TTI] NFC: Change getGEPCost to return InstructionCost

This patch migrates the TTI cost interfaces to return an InstructionCost.

See this patch for the introduction of the type: https://reviews.llvm.org/D91174
See this thread for context: http://lists.llvm.org/pipermail/llvm-dev/2020-November/146408.html

Differential Revision: https://reviews.llvm.org/D100562

[TTI] NFC: Change getMemcpyCost to return InstructionCost

This patch migrates the TTI cost interfaces to return an InstructionCost.

See this patch for the introduction of the type: https://reviews.llvm.org/D91174
See this thread for context: http://lists.llvm.org/pipermail/llvm-dev/2020-November/146408.html

Differential Revision: https://reviews.llvm.org/D100563

[TTI] NFC: Change getScalingFactorCost to return InstructionCost

This patch migrates the TTI cost interfaces to return an InstructionCost.

See this patch for the introduction of the type: https://reviews.llvm.org/D91174
See this thread for context: http://lists.llvm.org/pipermail/llvm-dev/2020-November/146408.html

Differential Revision: https://reviews.llvm.org/D100564

[TTI] NFC: Change getIntImmCost[Inst|Intrin] to return InstructionCost

This patch migrates the TTI cost interfaces to return an InstructionCost.

See this patch for the introduction of the type: https://reviews.llvm.org/D91174
See this thread for context: http://lists.llvm.org/pipermail/llvm-dev/2020-November/146408.html

Differential Revision: https://reviews.llvm.org/D100565

[flang] Switch from %f18 to %flang_fc1 in a test

This patch updates the final test that can be shared between the old and
the new Flang drivers and that has not been ported yet. %f18 (always
expanded as `f18`) is replaced with %flang_fc1 (expanded as either `f18`
or `flang-new -fc1`, depending on `FLANG_BUILD_NEW_DRIVER`).

This test should've been updated in https://reviews.llvm.org/D100309,
but I missed it then. That's because this test contains non-ascii
characters and `grep -I %f18` (as well as other grep-like tools) skips
it because it's interpreted as a data/binary file. In fact, it's just a
text file with non-ascii chars.

Since this is an obvious omission from D100309 (reviewed, accepted and
merged), I'm sending this without a review to reduce the noise on
Phabricator.

[AST] Sort introspection results without instantiating other data

Avoid string allocation in particular, but also avoid attempting to
impose any particular ordering based on formatted results.

Differential Revision: https://reviews.llvm.org/D101054

[Analyzer][StdLibraryFunctionsChecker] Describe arg constraints

In this patch, I provide a detailed explanation for each argument
constraint. This explanation is added in an extra 'note' tag, which is
displayed alongside the warning.
Since these new notes describe clearly the constraint, there is no need
to provide the number of the argument (e.g. 'Arg3') within the warning.
However, I decided to keep the name of the constraint in the warning (but
this could be a subject of discussion) in order to be able to identify
the different kind of constraint violations easily in a bug database
(e.g. CodeChecker).

Differential Revision: https://reviews.llvm.org/D101060

fix comment typo to cycle bots

[CostModel][X86] Improve v2f32 fadd reduction cost

This was being reported as a similar cost to v4f32 when its a lot cheaper (just a shufps+addps).

[cmake] Configure policy CMP0116

Using `cmake` >=3.20 results in many warnings about this new policy. This change silences the warnings by explicitly declaring use of the "OLD" behavior.

This policy currently affects only one place: the `tablegen()` function in `TableGen.cmake`.

Differential Revision: https://reviews.llvm.org/D101083

[PowerPC] Add vec_ctsl and vec_ctul to altivec.h

These are added for compatibility with XLC. They are similar to
vec_cts and vec_ctu except that the result is a doubleword vector
regardless of the parameter type.

[TableGen] [docs] Improve BNF for the 'multiclass' statement [NFC]