[OpenMP] Error when trying to offload to an unsupported architecture

Summary: Throw an error when offloading is unsupported for a particular target architecture.

Reviewers: sfantao, caomhin, carlo.

[OpenMP] Error when trying to offload to an unsupported architecture

Summary: Throw an error when offloading is unsupported for a particular target architecture.

Reviewers: sfantao, caomhin, carlo.bertolli, ABataev, Hahnfeld

Reviewed By: ABataev

Subscribers: cfe-commits, rengolin

Differential Revision: https://reviews.llvm.org/D32035

llvm-svn: 310307

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[OpenMP] Prevent emission of exception handling code when using OpenMP to offload to NVIDIA devices.

Summary: For the OpenMP toolchain which offloads to NVIDIA GPUs make sure that no exception handl

[OpenMP] Prevent emission of exception handling code when using OpenMP to offload to NVIDIA devices.

Summary: For the OpenMP toolchain which offloads to NVIDIA GPUs make sure that no exception handling code is emitted.

Reviewers: arpith-jacob, sfantao, caomhin, carlo.bertolli, ABataev, Hahnfeld, hfinkel, tstellar

Reviewed By: ABataev, Hahnfeld

Subscribers: rengolin, Hahnfeld, cfe-commits

Differential Revision: https://reviews.llvm.org/D29904

llvm-svn: 310306

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[mips] Revert r309942 & r309940

This reverts commit r309942 & commit r309940.

A revert was requested following post commit review.

llvm-svn: 309978

[mips] Implement -muninit-const-in-rodata

This option when combined with -mgpopt and -membedded-data places all
uninitialized constant variables in the read-only section.

Reviewers: atanasyan, nite

[mips] Implement -muninit-const-in-rodata

This option when combined with -mgpopt and -membedded-data places all
uninitialized constant variables in the read-only section.

Reviewers: atanasyan, nitesh.jain

Differential Revision: https://reviews.llvm.org/D35917

llvm-svn: 309940

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[sanitizer-coverage] clang flags pumbing for -fsanitize-coverage=pc-table

llvm-svn: 309338

[c++2a] Add option -std=c++2a to enable support for potential/transitional C++2a features

- as usual C++2a implies all the C++'s that came before it.

Thank you Aaron for the feedback here: https://

[c++2a] Add option -std=c++2a to enable support for potential/transitional C++2a features

- as usual C++2a implies all the C++'s that came before it.

Thank you Aaron for the feedback here: https://reviews.llvm.org/D35454

llvm-svn: 308118

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Changed Opts.EABIVersion type string to llvm::EABI enum class

Summary:
Changed EABIVersion type from string to llvm::EABI.
It seems it was just a typo and this is intended implementation.

Different

Changed Opts.EABIVersion type string to llvm::EABI enum class

Summary:
Changed EABIVersion type from string to llvm::EABI.
It seems it was just a typo and this is intended implementation.

Differential Revision: https://reviews.llvm.org/D34595

llvm-svn: 306953

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Un-revert "[Driver] Add -fdiagnostics-hotness-threshold"

Summary:
Un-revert https://reviews.llvm.org/D34868, but with a slight tweak to the
documentation to fix an error -- I had used the wrong synt

Un-revert "[Driver] Add -fdiagnostics-hotness-threshold"

Summary:
Un-revert https://reviews.llvm.org/D34868, but with a slight tweak to the
documentation to fix an error -- I had used the wrong syntax for a link.

llvm-svn: 306948

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Revert "[Driver] Add -fdiagnostics-hotness-threshold"

Summary:
The commit caused a documentation breakage.

llvm-svn: 306946

[Driver] Add -fdiagnostics-hotness-threshold

Summary:
Depends on https://reviews.llvm.org/D34867.

Add a Clang frontend option to enable optimization remark hotness
thresholds, which were added to L

[Driver] Add -fdiagnostics-hotness-threshold

Summary:
Depends on https://reviews.llvm.org/D34867.

Add a Clang frontend option to enable optimization remark hotness
thresholds, which were added to LLVM in https://reviews.llvm.org/D34867.
This prevents diagnostics that do not meet a minimum hotness
threshold from being output. When generating optimization remarks for large
codebases with a ton of cold code paths, this option can be used
to limit the optimization remark output at a reasonable size.
Discussion of this change can be read here:
http://lists.llvm.org/pipermail/llvm-dev/2017-June/114377.html

Reviewers: anemet, davidxl, hfinkel

Reviewed By: anemet

Subscribers: fhahn, cfe-commits

Differential Revision: https://reviews.llvm.org/D34868

llvm-svn: 306945

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Remove Clang support for '-fvectorize-slp-aggressive' which used LLVM's
basic block vectorizer. This vectorizer has had no known users for many,
many years and is completely surpassed by the normal
'

Remove Clang support for '-fvectorize-slp-aggressive' which used LLVM's
basic block vectorizer. This vectorizer has had no known users for many,
many years and is completely surpassed by the normal
'-fvectorize-slp'-controlled SLP vectorizer in LLVM.

Hal proposed this back in 2014 to no objections:
http://lists.llvm.org/pipermail/llvm-dev/2014-November/079091.html

While this patch completely removes the flag, Joerg is working on
a patch that will add it back in a way that warns users and ignores the
flag in a clear and well factored way (so that we can keep doing this
going forward).

Differential Revision: https://reviews.llvm.org/D34846

llvm-svn: 306786

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[NewPM] Add Clang cc1 flag -fdebug-pass-manager for printing debug information.

Differential Revision: https://reviews.llvm.org/D34790

llvm-svn: 306757

[Sema] Issue diagnostics if a new/delete expression generates a call to
a c++17 aligned allocation/deallocation function that is unavailable in
the standard library on Apple platforms.

The aligned f

[Sema] Issue diagnostics if a new/delete expression generates a call to
a c++17 aligned allocation/deallocation function that is unavailable in
the standard library on Apple platforms.

The aligned functions are implemented only in the following versions or
later versions of the OSes, so clang issues diagnostics if the deployment
target being targeted is older than these:

macosx: 10.13
ios: 11.0
tvos: 11.0
watchos: 4.0

The diagnostics are issued whenever the aligned functions are selected
except when the selected function has a definition in the same file.
If there is a user-defined function available somewhere else, option
-Wno-aligned-allocation-unavailable can be used to silence the
diagnostics.

rdar://problem/32664169

Differential Revision: https://reviews.llvm.org/D34574

llvm-svn: 306722

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[OpenMP] Add support for auxiliary triple specification

Summary: Device offloading requires the specification of an additional flag containing the triple of the //other// architecture the code is be

[OpenMP] Add support for auxiliary triple specification

Summary: Device offloading requires the specification of an additional flag containing the triple of the //other// architecture the code is being compiled on if such an architecture exists. If compiling for the host, the auxiliary triple flag will contain the triple describing the device and vice versa.

Reviewers: arpith-jacob, sfantao, caomhin, carlo.bertolli, ABataev, Hahnfeld, jlebar, hfinkel, tstellar

Reviewed By: Hahnfeld

Subscribers: rengolin, cfe-commits

Differential Revision: https://reviews.llvm.org/D29339

llvm-svn: 306689

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Revert "Revert r305164/5/7."

Restore the `-gz` option to the driver with some minor tweaks to handle
the additional case for `-Wa,--compress-debug-sections`.

This intends to make the compression of

Revert "Revert r305164/5/7."

Restore the `-gz` option to the driver with some minor tweaks to handle
the additional case for `-Wa,--compress-debug-sections`.

This intends to make the compression of the debug information
controllable from the driver. The following is the behaviour:

-gz enable compression (ambiguous for format, will default to zlib-gnu)
-gz=none disable compression
-gz=zlib-gnu enable compression (deprecated GNU style zlib compression)
-gz=zlib enable compression (zlib based compression)

Although -Wa,-compress-debug-sections works, it should be discouraged
when using the driver to invoke the assembler. However, we permit the
assembler to accept the GNU as style argument --compress-debug-sections
to maintain compatibility.

Note, -gz/-gz= does *NOT* imply -g. That is, you need to additionally
specific -g for debug information to be generated.

llvm-svn: 306115

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[Frontend] 'Show hotness' can be used with a sampling profile

Summary:
Prior to this change, using `-fdiagnostics-show-hotness` with a sampling
profile specified via `-fprofile-sample-use=` would re

[Frontend] 'Show hotness' can be used with a sampling profile

Summary:
Prior to this change, using `-fdiagnostics-show-hotness` with a sampling
profile specified via `-fprofile-sample-use=` would result in the Clang
frontend emitting a warning: "argument '-fdiagnostics-show-hotness' requires
profile-guided optimization information". Of course, a sampling profile
*is* profile-guided optimization information, so the warning is misleading.
Furthermore, despite the warning, hotness was displayed based on the data in
the sampling profile.

Prevent the warning from being emitted when a sampling profile is used, and
add a test that verifies this.

Reviewers: anemet, davidxl

Reviewed By: davidxl

Subscribers: danielcdh, cfe-commits

Differential Revision: https://reviews.llvm.org/D34082

llvm-svn: 306079

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[PR33394] Avoid lexing editor placeholders when Clang is used only
for preprocessing

r300667 added support for editor placeholder to Clang. That commit didn’t take
into account that users who use Cl

[PR33394] Avoid lexing editor placeholders when Clang is used only
for preprocessing

r300667 added support for editor placeholder to Clang. That commit didn’t take
into account that users who use Clang for preprocessing only (-E) will get the
"editor placeholder in source file" error when preprocessing their source
(PR33394). This commit ensures that Clang doesn't lex editor placeholders when
running a preprocessor only action.

rdar://32718000

Differential Revision: https://reviews.llvm.org/D34256

llvm-svn: 305576

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Be more strict when checking the -flto option value

Summary:
It seems -flto must be either "thin" or "full". I think the use of
containValue is just a typo.

Reviewers: ruiu, tejohnson

Subscribers:

Be more strict when checking the -flto option value

Summary:
It seems -flto must be either "thin" or "full". I think the use of
containValue is just a typo.

Reviewers: ruiu, tejohnson

Subscribers: mehdi_amini, inglorion

Differential Revision: https://reviews.llvm.org/D34055

llvm-svn: 305392

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Revert r305164/5/7.

cc1as does not currently access the "--" version of this flag. At the
very least this needs to be fixed and proper test cases need to be
added.

Simple reproducer:
clang -Wa,--co

Revert r305164/5/7.

cc1as does not currently access the "--" version of this flag. At the
very least this needs to be fixed and proper test cases need to be
added.

Simple reproducer:
clang -Wa,--compress-debug-sections /tmp/test.cc

Result:
error: unknown argument: '--compress-debug-sections'

llvm-svn: 305182

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Driver: add support for `-gz` and `-gz=`

These options control the behaviour of the compression of debug info
sections on ELF targets. Our behaviour slightly diverges from the
behaviour of GCC. `-

Driver: add support for `-gz` and `-gz=`

These options control the behaviour of the compression of debug info
sections on ELF targets. Our behaviour slightly diverges from the
behaviour of GCC. `-gz` maps to the `-compress-debug-sections` rather
than `-compress-debug-sections=zlib` or
`-compress-debug-sections=zlib-gnu`. This small divergence allows us to
be compatible across versions of binutils (=zlib support was introduced
in 2.26, while earlier versions only support =zlib-gnu). This also
allows users to not have to worry about the version of the assembler
they may be using if they are not using the IAS. Previously, users
would have had to go through the internal option
`-compress-debug-sectionss` and pass that through to the assembler,
which is no longer needed.

llvm-svn: 305165

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Add -frewrite-imports flag.

If specified, when preprocessing, the contents of imported .pcm files will be
included in preprocessed output. The resulting preprocessed file can then be
compiled standa

Add -frewrite-imports flag.

If specified, when preprocessing, the contents of imported .pcm files will be
included in preprocessed output. The resulting preprocessed file can then be
compiled standalone without the module sources or .pcm files.

llvm-svn: 305116

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Represent debug information compression type fully

This is tied with the LLVM side of the change to expose the debug
information compression types to clang. We now track the compression
type as an

Represent debug information compression type fully

This is tied with the LLVM side of the change to expose the debug
information compression types to clang. We now track the compression
type as an enumeration rather than a boolean. We still use the same
value (GNU) that we did previously. This is in preparation to support
passing down the compression type and switch it based on the command
line.

llvm-svn: 305039

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[sanitizer-coverage] one more flavor of coverage: -fsanitize-coverage=inline-8bit-counters. Experimental so far, not documenting yet. Reapplying revisions 304630, 304631, 304632, 304673, see PR33308

[sanitizer-coverage] one more flavor of coverage: -fsanitize-coverage=inline-8bit-counters. Experimental so far, not documenting yet. Reapplying revisions 304630, 304631, 304632, 304673, see PR33308

llvm-svn: 305026

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Revert "[sanitizer-coverage] one more flavor of coverage: -fsanitize-coverage=inline-8bit-counters. Experimental so far, not documenting yet. (clang part)"

This reverts commit r304631, as it broke A

Revert "[sanitizer-coverage] one more flavor of coverage: -fsanitize-coverage=inline-8bit-counters. Experimental so far, not documenting yet. (clang part)"

This reverts commit r304631, as it broke ARM/AArch64 bots for 2 days.

llvm-svn: 304697

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[sanitizer-coverage] one more flavor of coverage: -fsanitize-coverage=inline-8bit-counters. Experimental so far, not documenting yet. (clang part)

llvm-svn: 304631