[Driver][SYCL] Add initial SYCL offload compilation support (#117268)

Introduces the SYCL based toolchain and initial toolchain construction
when using the '-fsycl' option. This option will enable

[Driver][SYCL] Add initial SYCL offload compilation support (#117268)

Introduces the SYCL based toolchain and initial toolchain construction
when using the '-fsycl' option. This option will enable SYCL based
offloading, creating a SPIR-V based IR file packaged into the compiled
host object.

This includes early support for creating the host/device object using
the new offloading model. The device object is created using the
spir64-unknown-unknown target triple.

New/Updated Options:
-fsycl Enables SYCL offloading for host and device
-fsycl-device-only
Enables device only compilation for SYCL
-fsycl-host-only
Enables host only compilation for SYCL

RFC Reference:
https://discourse.llvm.org/t/rfc-sycl-driver-enhancements/74092

This is a reland of: https://github.com/llvm/llvm-project/pull/107493

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[Driver] Remove unused includes (NFC) (#116316)

Identified with misc-include-cleaner.

Revert "[Driver][SYCL] Add initial SYCL offload compilation support" (#116381)

Reverts llvm/llvm-project#107493

Failing bots include:
https://lab.llvm.org/buildbot/#/builders/190/builds/9546
ht

Revert "[Driver][SYCL] Add initial SYCL offload compilation support" (#116381)

Reverts llvm/llvm-project#107493

Failing bots include:
https://lab.llvm.org/buildbot/#/builders/190/builds/9546
https://lab.llvm.org/buildbot/#/builders/46/builds/7938

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[Driver][SYCL] Add initial SYCL offload compilation support (#107493)

Introduces the SYCL based toolchain and initial toolchain construction
when using the '-fsycl' option. This option will enable

[Driver][SYCL] Add initial SYCL offload compilation support (#107493)

Introduces the SYCL based toolchain and initial toolchain construction
when using the '-fsycl' option. This option will enable SYCL based
offloading, creating a SPIR-V based IR file packaged into the compiled
host object.

This includes early support for creating the host/device object using
the new offloading model. The device object is created using the
spir64-unknown-unknown target triple.

New/Updated Options:
-fsycl Enables SYCL offloading for host and device
-fsycl-device-only
Enables device only compilation for SYCL
-fsycl-host-only
Enables host only compilation for SYCL

RFC Reference:
https://discourse.llvm.org/t/rfc-sycl-driver-enhancements/74092

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Revert "[clang][flang] Support -time in both clang and flang"

Reverts llvm/llvm-project#109165

This created a buildbot failure on
[Fuchsia](https://lab.llvm.org/buildbot/#/builders/11/builds/808

Revert "[clang][flang] Support -time in both clang and flang"

Reverts llvm/llvm-project#109165

This created a buildbot failure on
[Fuchsia](https://lab.llvm.org/buildbot/#/builders/11/builds/8080).

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[clang][flang] Support -time in both clang and flang

The -time option prints timing information for the subcommands
(compiler, linker) in a format similar to that used by gcc/gfortran.

This part

[clang][flang] Support -time in both clang and flang

The -time option prints timing information for the subcommands
(compiler, linker) in a format similar to that used by gcc/gfortran.

This partially addresses requests from #89888

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[NFC][TargetParser] Remove llvm/ADT/Triple.h

I also ran `git clang-format` to get the headers in the right order for
the new location, which has changed the order of other headers in two
files.

[clang] Don't including None.h (NFC)

These source files no longer use None, so they do not need to include
None.h.

This is part of an effort to migrate from llvm::Optional to
std::optional:

https:

[clang] Don't including None.h (NFC)

These source files no longer use None, so they do not need to include
None.h.

This is part of an effort to migrate from llvm::Optional to
std::optional:

https://discourse.llvm.org/t/deprecating-llvm-optional-x-hasvalue-getvalue-getvalueor/63716

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[clang] Use std::nullopt instead of None (NFC)

This patch mechanically replaces None with std::nullopt where the
compiler would warn if None were deprecated. The intent is to reduce
the amount of m

[clang] Use std::nullopt instead of None (NFC)

This patch mechanically replaces None with std::nullopt where the
compiler would warn if None were deprecated. The intent is to reduce
the amount of manual work required in migrating from Optional to
std::optional.

This is part of an effort to migrate from llvm::Optional to
std::optional:

https://discourse.llvm.org/t/deprecating-llvm-optional-x-hasvalue-getvalue-getvalueor/63716

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Support: Convert Program APIs to std::optional

[clang] Qualify auto in range-based for loops (NFC)

Use range-based for loops (NFC)

[clang][driver] Introduce new -fdriver-only flag

This patch introduces the new -fdriver-only flag which instructs Clang to only execute the driver logic without running individual jobs. In a way, th

[clang][driver] Introduce new -fdriver-only flag

This patch introduces the new -fdriver-only flag which instructs Clang to only execute the driver logic without running individual jobs. In a way, this is very similar to -###, with the following differences:
* it doesn't automatically print all jobs,
* it doesn't avoid side effects (e.g. it will generate compilation database when -MJ is specified).

This flag will be useful in testing D121997.

Reviewed By: dexonsmith, egorzhdan

Differential Revision: https://reviews.llvm.org/D127408

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Revert "Rename llvm::array_lengthof into llvm::size to match std::size from C++17"

This reverts commit ef8206320769ad31422a803a0d6de6077fd231d2.

- It conflicts with the existing llvm::size in STLEx

Revert "Rename llvm::array_lengthof into llvm::size to match std::size from C++17"

This reverts commit ef8206320769ad31422a803a0d6de6077fd231d2.

- It conflicts with the existing llvm::size in STLExtras, which will now
never be called.
- Calling it without llvm:: breaks C++17 compat

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Rename llvm::array_lengthof into llvm::size to match std::size from C++17

As a conquence move llvm::array_lengthof from STLExtras.h to
STLForwardCompat.h (which is included by STLExtras.h so no buil

Rename llvm::array_lengthof into llvm::size to match std::size from C++17

As a conquence move llvm::array_lengthof from STLExtras.h to
STLForwardCompat.h (which is included by STLExtras.h so no build
breakage expected).

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[clang] Remove redundant calls to c_str() (NFC)

Identified with readability-redundant-string-cstr.

[SystemZ][z/OS][Windows] Add new OF_TextWithCRLF flag and use this flag instead of OF_Text

Problem:
On SystemZ we need to open text files in text mode. On Windows, files opened in text mode adds a C

[SystemZ][z/OS][Windows] Add new OF_TextWithCRLF flag and use this flag instead of OF_Text

Problem:
On SystemZ we need to open text files in text mode. On Windows, files opened in text mode adds a CRLF '\r\n' which may not be desirable.

Solution:
This patch adds two new flags

- OF_CRLF which indicates that CRLF translation is used.
- OF_TextWithCRLF = OF_Text | OF_CRLF indicates that the file is text and uses CRLF translation.

Developers should now use either the OF_Text or OF_TextWithCRLF for text files and OF_None for binary files. If the developer doesn't want carriage returns on Windows, they should use OF_Text, if they do want carriage returns on Windows, they should use OF_TextWithCRLF.

So this is the behaviour per platform with my patch:

z/OS:
OF_None: open in binary mode
OF_Text : open in text mode
OF_TextWithCRLF: open in text mode

Windows:
OF_None: open file with no carriage return
OF_Text: open file with no carriage return
OF_TextWithCRLF: open file with carriage return

The Major change is in llvm/lib/Support/Windows/Path.inc to only set text mode if the OF_CRLF is set.
```
if (Flags & OF_CRLF)
CrtOpenFlags |= _O_TEXT;
```

These following files are the ones that still use OF_Text which I left unchanged. I modified all these except raw_ostream.cpp in recent patches so I know these were previously in Binary mode on Windows.
./llvm/lib/Support/raw_ostream.cpp
./llvm/lib/TableGen/Main.cpp
./llvm/tools/dsymutil/DwarfLinkerForBinary.cpp
./llvm/unittests/Support/Path.cpp
./clang/lib/StaticAnalyzer/Core/HTMLDiagnostics.cpp
./clang/lib/Frontend/CompilerInstance.cpp
./clang/lib/Driver/Driver.cpp
./clang/lib/Driver/ToolChains/Clang.cpp

Reviewed By: MaskRay

Differential Revision: https://reviews.llvm.org/D99426

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[SystemZ][z/OS] Save strings for CC_PRINT env vars

The contents of the string returned by getenv() is not guaranteed across calls to getenv(). The code to handle the CC_PRINT etc env vars calls gete

[SystemZ][z/OS] Save strings for CC_PRINT env vars

The contents of the string returned by getenv() is not guaranteed across calls to getenv(). The code to handle the CC_PRINT etc env vars calls getenv() and saves the results in just a char *. The string returned by getenv() needs to be copied and saved. Switching the type of the strings from char * to std::string will do this and manage the alloated memory.

Differential Revision: https://reviews.llvm.org/D98554

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[Driver] Add callback to Command execution

Summary:
Object of type `Compilation` now can keep a callback that is called
after each execution of `Command`. This must simplify adaptation of
clang in c

[Driver] Add callback to Command execution

Summary:
Object of type `Compilation` now can keep a callback that is called
after each execution of `Command`. This must simplify adaptation of
clang in custom distributions and allow facilities like collection of
execution statistics.

Reviewers: rsmith, rjmccall, Eugene.Zelenko

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D78899

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[CUDA][HIP] Add -Xarch_device and -Xarch_host options

The argument after -Xarch_device will be added to the arguments for CUDA/HIP
device compilation and will be removed for host compilation.

The a

[CUDA][HIP] Add -Xarch_device and -Xarch_host options

The argument after -Xarch_device will be added to the arguments for CUDA/HIP
device compilation and will be removed for host compilation.

The argument after -Xarch_host will be added to the arguments for CUDA/HIP
host compilation and will be removed for device compilation.

Differential Revision: https://reviews.llvm.org/D76520

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Re-land "[Clang][Driver] Remove -M group options ..." and "[Clang] Avoid crashing when generating crash diagnostics when '#pragma clang __debug ..."

This re-lands commits f41ec709d9d388dc43469e6ac7f

Re-land "[Clang][Driver] Remove -M group options ..." and "[Clang] Avoid crashing when generating crash diagnostics when '#pragma clang __debug ..."

This re-lands commits f41ec709d9d388dc43469e6ac7f51b6313f7e4af (https://reviews.llvm.org/D74076)
and commit 5fedc2b410853a6aef05e8edf19ebfc4e071e28f (https://reviews.llvm.org/D74070)

The previous build break was caused by '#pragma clang __debug llvm_unreachable' used in a non-assert build. Move it to a separate test in crash-report-with-asserts.c.

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Revert "[Clang][Driver] Remove -M group options ..." and "[Clang] Avoid crashing when generating crash diagnostics when '#pragma clang __debug ..."

This reverts commits f41ec709d9d388dc43469e6ac7f51

Revert "[Clang][Driver] Remove -M group options ..." and "[Clang] Avoid crashing when generating crash diagnostics when '#pragma clang __debug ..."

This reverts commits f41ec709d9d388dc43469e6ac7f51b6313f7e4af and 5fedc2b410853a6aef05e8edf19ebfc4e071e28f. On some buildbots, Clang :: Driver/crash-report.c is broken with:

```
Command Output (stderr):
--
/home/buildslave/ps4-buildslave1/clang-with-thin-lto-ubuntu/llvm-project/clang/test/Driver/crash-report.c:48:11: error: CHECK: expected string not found in input
// CHECK: Preprocessed source(s) and associated run script(s) are located at:
^
<stdin>:1:1: note: scanning from here
/home/buildslave/ps4-buildslave1/clang-with-thin-lto-ubuntu/llvm-project/clang/test/Driver/crash-report.c:50:1: error: unknown type name 'BAZ'
```

Example: http://lab.llvm.org:8011/builders/clang-with-thin-lto-ubuntu/builds/21321/steps/test-stage1-compiler/logs/stdio

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[Clang][Driver] Remove -M group options before generating crash diagnostics

Previously, when using '-MF file.d' on the command line, 'file.d' would not be deleted after a compiler crash.

The code p

[Clang][Driver] Remove -M group options before generating crash diagnostics

Previously, when using '-MF file.d' on the command line, 'file.d' would not be deleted after a compiler crash.

The code path in Compilation::initCompilationForDiagnostics() that was modifying 'TranslatedArgs' had no effect, because 'TCArgs' was already created after the crash.

This was covered by clang/test/Driver/output-file-cleanup.c, the test was succeeding by fluke because Driver::generateCompilationDiagnostics() would fail to launch the subsequent clang -E (see D74070 for a fix for this). So the test was only covering Driver.cpp, C.CleanupFileMap().
After this patch, both cleanup and removal of -MF are exercised.

Differential Revision: https://reviews.llvm.org/D74076

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[PATCH] Reland [Clang] Un-break scan-build after integrated-cc1 change

The issue was reported by @xazax.hun here: https://reviews.llvm.org/D69825#1827826

"This patch (D69825) breaks scan-build-py w

[PATCH] Reland [Clang] Un-break scan-build after integrated-cc1 change

The issue was reported by @xazax.hun here: https://reviews.llvm.org/D69825#1827826

"This patch (D69825) breaks scan-build-py which parses the output of "-###" to get -cc1 command. There might be other tools with the same problems. Could we either remove (in-process) from CC1Command::Print or add a line break?

Having the last line as a valid invocation is valuable and there might be tools relying on that."

Differential Revision: https://reviews.llvm.org/D72982

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Rename F_{None,Text,Append} to OF_{None,Text,Append}. NFC

F_{None,Text,Append} are kept for compatibility since r334221.

llvm-svn: 367800