Add method to set a desired bytecode file format to generate. Change
write method to be able to return status including the minimum bytecode
version needed by reader. This enables generating an older version of
the bytecode (not dialect ops, attributes or types). But this does not
guarantee that an older version can always be generated, e.g., if a
dialect uses a new encoding only available at later bytecode version.
This clamps setting to at most current version.

Differential Revision: https://reviews.llvm.org/D146555

Differential Revision: https://reviews.llvm.org/D147847

To prevent race in `NATIVE`, let each action depend on preceding action.
At the moment, this is restricted only for "Visual Studio".

For example,

  - `llvm-tblgen-host` depends on the target's `llvm-tblgen`.
  - `clang-tblgen-host` depends on the target's `clang-tblgen` and `llvm-tblgen-host`.

This is rework for D54153.
`build_native_tool` has been introduced since D60024.

Differential Revision: https://reviews.llvm.org/D149072

The option allows users to specify how many columns to use to indent
the contents of initializer lists.

Closes #51070.

Differential Revision: https://reviews.llvm.org/D146101

The previous patch (D148980) didn't set the InstrIdxForVirtReg correctly
in genAlternativeDpCodeSequence(). It causes vnni lit test failure when
LLVM_ENABLE_EXPENSIVE_CHECKS is on.

This broke the lit tests on Mac, see comment on the code review.

> This change the types to match the ones used in:
> Darwin/debug_external.cpp
> debugging.cpp
>
> Reviewed By: vitalybuka
>
> Differential Revision: https://reviews.llvm.org/D148214

This reverts commit ea7d6e65.

The patch disables strict node mutation by setting IsStrictFPEnabled to true.
It also fixes wrong lowering action of strict_fsetcc(s).

Reviewed By: craig.topper

Differential Revision: https://reviews.llvm.org/D149320

The implementation of the test printing currently expects a null
terminated C-string. However, the `write_to_stderr` interface uses a
string view, which doesn't need to be null terminated. This patch
changes the printing interface to directly use `fwrite` instead rather
than relying on a null terminator.

Reviewed By: sivachandra

Differential Revision: https://reviews.llvm.org/D149493

Reported by Coverity:

AUTO_CAUSES_COPY
Unnecessary object copies can affect performance

1. Inside "ODRHash.cpp" file, in clang::ODRHash::AddCXXRecordDecl(clang::CXXRecordDecl const *): Using the auto keyword without an & causes the copy of an object of type CXXBaseSpecifier.

2. Inside "Tokens.cpp" file, in clang::syntax::TokenBuffer::dumpForTests[abi:cxx11](): Using the auto keyword without an & causes the copy of an object of type DenseMapPair.

3. Inside "TargetID.cpp" file, in clang::getCanonicalTargetID[abi:cxx11](llvm::StringRef, llvm::StringMap<bool, llvm::MallocAllocator> const &): Using the auto keyword without an & causes the copy of an object of type pair.

Reviewed By: tahonermann, aaron.ballman

Differential Revision: https://reviews.llvm.org/D148639

Add canonicalization for affine.for bounds to use operand info (when
operands are outer loop affine.for IVs) to simplify bounds: redundant
bound expressions are eliminated in specific cases that are easy to
check and well-suited for op canonicaliation. If the lowest or the
highest value the affine expression can take is already covered by other
constant bounds, the expression can be removed.

Eg:
`min (d0) -> (32 * d0 + 32, 32)(%i) where 0 <= %i < 2`

The first expression can't be less than 32 and can be simplified away
with a lightweight local rewrite.

This simplification being part of canonicalization only handles simple
expressions, specifically, a sum of products of operands with constants.
This is a very common and a dominant case where such simplification is
desired. These can be flattened without any local variables.

Reviewed By: dcaballe, springerm

Differential Revision: https://reviews.llvm.org/D149007

Reviewed By: thurston

Differential Revision: https://reviews.llvm.org/D149430

Acidentally relanded without the fix.

This reverts commit 008c3934.

Reviewed By: thurston

Differential Revision: https://reviews.llvm.org/D149430

Refactor the debugserver watchpiont support in anticipating of
adding support for AArch64 MASK hardware watchpoints to watch
larger regions of memory.  debugserver already had support for
handling a request to watch an unaligned region of memory up
to 8 bytes using Byte Address Select watchpoints - it would split
an unaligned watch request into two aligned doublewords that
could be watched with two hardware watchpoints using the BAS
specification.

This patch generalizes that code for properly aligning, and
possibly splitting, a watchpoint request into two hardware watchpoints
to handle any size request.  And separates out the specifics
about BAS watchpoints into its own method, so a sibling method
for MASK watchpoints can be dropped in next.

Differential Revision: https://reviews.llvm.org/D149040
rdar://108233371

i386 and armv7 macOS/iOS cannot be built with current Xcode
any longer; we cannot build or test the support code for running
debugserver on these targets.  Remove the code.

Differential Revision: https://reviews.llvm.org/D149503

This patch refactors the macOS implementation of
OpenFileInExternalEditor. It fixes an AppleEvent memory leak, the
caching of LLDB_EXTERNAL_EDITOR and speculatively fixes a crash when
CFURL is NULL (rdar://108633464). The new code also improves error
handling, readability and documents calls to the CoreFoundation Launch
Services APIs.

A bunch of the Launch Services APIs have been deprecated
(LSFindApplicationForInfo, LSOpenURLsWithRole). The preferred API is
LSOpenCFURLRef but it doesn't specifying the "location" Apple Event
which is used to highlight the current line and switching over would
regress the existing behavior.

rdar://108633464

Differential revision: https://reviews.llvm.org/D149482

Break internal tests, but it supposed to be almost NFC.

This reverts commit bf12b746.

Reviewed By: hanchung

Differential Revision: https://reviews.llvm.org/D149120

/Users/jiefu/llvm-project/llvm/lib/Object/GOFFObjectFile.cpp:199:3: error: use of undeclared identifier 'EC'
  EC = ConverterEBCDIC::convertToUTF8(SymbolName, SymbolNameConverted);
  ^
1 error generated.

c55fffec replaced fcmp with fpclass.

```
declare i1 @llvm.is.fpclass(<fptype> <op>, i32 <test>)
declare <N x i1> @llvm.is.fpclass(<vector-fptype> <op>, i32 <test>)
```

Perfect fix will require checking bits of <op> corresponding to <test>
argument. For now just propagate shadow without reporting before
intrinsic. Still existing handling of fcmp is also simple OR, so it's
not making it worse.

Reviewed By: eugenis

Differential Revision: https://reviews.llvm.org/D149491

Msan uses strict approach for unknown intrinsics like fpclass. So any
uninitialized bits in the value trigger msan report.

This patch details the GOFF file format and implements the GOFFObjectfile class
with support for only the HDR, ESD and END GOFF records.

Reviewed By: jhenderson, kpn

Differential Revision: https://reviews.llvm.org/D98437

This reverts commit 5b242318.

This patch details the GOFF file format and implements the GOFFObjectfile class
with support for only the HDR, ESD and END GOFF records.

Reviewed By: jhenderson, kpn

Differential Revision: https://reviews.llvm.org/D98437

When the default case requires block arguments, they have to be passed
through the cf.br - this piece was missing.

Reviewed By: clementval

Differential Revision: https://reviews.llvm.org/D149484

The time functions have not yet been updated to match our new coding
patterns. This patch removes some unnecessary includes, adjusts the
names of the test targets, and adds several TODO comments. It is my
intention to follow this patch up with additional cleanup.

Reviewed By: sivachandra, rtenneti

Differential Revision: https://reviews.llvm.org/D149487

This allows the user to set the size of the scalable vector so they
can be used in structs and as the type of global variables. This works
by representing the type as a fixed vector instead of a scalable vector
in IR. Conversions to and from scalable vectors are made where necessary
like function arguments/returns and intrinsics.

This features has been requested here
https://github.com/riscv-non-isa/rvv-intrinsic-doc/issues/176
I know arm_sve_vector_bits is used by the Eigen library so this
could be used to port Eigen to RVV.

This patch adds a new preprocessor define `__riscv_v_fixed_vlen` that
is set when -mrvv_vector_bits is passed on the command line.

The code is largely based on the AArch64 code. A lot of code was
copy/pasted and then modiied to RVV. There may be some opportunities
for sharing.

This first patch only supports the LMUL=1 types. Additional changes
will be needed to support other LMULs. I have also not supported
mask vectors.

Differential Revision: https://reviews.llvm.org/D145088

Reviewers: craig.topper, aeubanks, Peter
Differential Revision: https://reviews.llvm.org/D134490

Clarify variable name as suggested in D147964 to reduce diff.

The differential fuzzer for atof found a bug in glibc's handling of
hexadecimal rounding. Since we can't easily update glibc and we want to
avoid false positives when running the fuzzer, I've added an exception
to skip all hexadecimal subnormal cases.

Reviewed By: sivachandra

Differential Revision: https://reviews.llvm.org/D149359

Reviewed By: thurston

Differential Revision: https://reviews.llvm.org/D149430

Switch to the just updated versions of the API in tcmalloc that change
the name of the hot cold paramter to a reserved identifier __hot_cold_t.
This was based on feedback from Richard Smith, as I also need to add
some follow-on handling to clang so they are annotated properly.

Differential Revision: https://reviews.llvm.org/D149475

This enabled more optimization opportunities by moving
zero/sign-extension closer to the use.

Reviewed By: antiagainst

Differential Revision: https://reviews.llvm.org/D149282