Commit Graph

2823 Commits

Author SHA1 Message Date
Vedant Kumar a0c3671b20 [ubsan] Have -fsanitize=vptr emit a null check if -fsanitize=null isn't available
In r309007, I made -fsanitize=null a hard prerequisite for -fsanitize=vptr. I
did not see the need for the two checks to have separate null checking logic
for the same pointer. I expected the two checks to either always be enabled
together, or to be mutually compatible.

In the mailing list discussion re: r309007 it became clear that that isn't the
case. If a codebase is -fsanitize=vptr clean but not -fsanitize=null clean,
it's useful to have -fsanitize=vptr emit its own null check. That's what this
patch does: with it, -fsanitize=vptr can be used without -fsanitize=null.

Differential Revision: https://reviews.llvm.org/D36112

llvm-svn: 309846
2017-08-02 18:10:31 +00:00
Yuka Takahashi 7b370e46e7 [Bash-autocompletion] Add comment to test so that it is easier to fix
Summary:
clang/test/Driver/autocomplete.c is a test for --autocomplete, and this
test might break if people add/modify flags or HelpText. So I've add
comment for future developers so that they can fix this file according
to the change they had made.

Reviewers: v.g.vassilev, teemperor, ruiu

Subscribers: cfe-commits

Differential Revision: https://reviews.llvm.org/D36209

llvm-svn: 309794
2017-08-02 07:20:27 +00:00
Petr Hosek c765035583 [Driver] Disable static C++ library support on Fuchsia
Don't support or build static C++ libraries for Fuchsia.

Differential Revision: https://reviews.llvm.org/D36202

llvm-svn: 309778
2017-08-02 01:18:02 +00:00
Akira Hatanaka 011ed19c0f Use -target instead of -arch in test case.
llvm-svn: 309640
2017-07-31 23:08:52 +00:00
Akira Hatanaka 086597aee3 Silence warning -Wmissing-sysroot.
llvm-svn: 309636
2017-07-31 22:46:00 +00:00
Akira Hatanaka 4a94d8d5f7 [Driver] Make sure the deployment target is earlier than iOS 11 when
it is inferred from -isysroot.

This fixes a change that was inadvertently introduced in r309607.

rdar://problem/32230613

llvm-svn: 309633
2017-07-31 22:19:34 +00:00
Akira Hatanaka fb82a59a8c [Driver] Allow users to silence the warning that is issued when the
deployment target is earlier than iOS 11 and the target is 32-bit.

This is a follow-up to r306922.

rdar://problem/32230613

llvm-svn: 309607
2017-07-31 19:16:40 +00:00
Brad Smith 580f8e6087 Also pass -pie back to the linker when linking on OpenBSD.
llvm-svn: 309523
2017-07-30 21:13:59 +00:00
Vedant Kumar 10c3102071 [ubsan] Diagnose invalid uses of builtins (clang)
On some targets, passing zero to the clz() or ctz() builtins has undefined
behavior. I ran into this issue while debugging UB in __hash_table from libcxx:
the bug I was seeing manifested itself differently under -O0 vs -Os, due to a
UB call to clz() (see: libcxx/r304617).

This patch introduces a check which can detect UB calls to builtins.

llvm.org/PR26979

Differential Revision: https://reviews.llvm.org/D34590

llvm-svn: 309459
2017-07-29 00:19:51 +00:00
Kostya Serebryany 6145776720 [sanitizer-coverage] clang flags pumbing for -fsanitize-coverage=pc-table
llvm-svn: 309338
2017-07-28 00:10:10 +00:00
Nemanja Ivanovic f88f81c444 [PowerPC] Pass CPU to assembler with -no-integrated-as
This just adds the CPU to a list of commands passed to GAS when not using the
integrated assembler.

Differential Revision: https://reviews.llvm.org/D33820

llvm-svn: 309256
2017-07-27 08:58:28 +00:00
Yuka Takahashi 66256906c3 [Bash-autocompletion] Show HelpText with possible flags
Summary:
`clang --autocomplete=-std` will show
```
-std:   Language standard to compile for
-std=   Language standard to compile for
-stdlib=        C++ standard library to use
```
after this change.

However, showing HelpText with completion in bash seems super tricky, so
this feature will be used in other shells (fish, zsh...).

Reviewers: v.g.vassilev, teemperor, ruiu

Subscribers: cfe-commits, hiraditya

Differential Revision: https://reviews.llvm.org/D35759

llvm-svn: 309113
2017-07-26 13:36:58 +00:00
Vedant Kumar bbc953fed4 [ubsan] Null-check pointers in -fsanitize=vptr (PR33881)
The instrumentation generated by -fsanitize=vptr does not null check a
user pointer before loading from it. This causes crashes in the face of
UB member calls (this=nullptr), i.e it's causing user programs to crash
only after UBSan is turned on.

The fix is to make run-time null checking a prerequisite for enabling
-fsanitize=vptr, and to then teach UBSan to reuse these run-time null
checks to make -fsanitize=vptr safe.

Testing: check-clang, check-ubsan, a stage2 ubsan-enabled build

Differential Revision: https://reviews.llvm.org/D35735

https://bugs.llvm.org/show_bug.cgi?id=33881

llvm-svn: 309007
2017-07-25 19:34:23 +00:00
Nico Weber 0ee47d92b2 Introduce -nostdlib++ flag to disable linking the C++ standard library.
Projects that want to statically link their own C++ standard library currently
need to pass -nostdlib or -nodefaultlibs, which also disables linking of the
builtins library, -lm, and so on. Alternatively, they could use `clang` instead
of `clang++`, but that already disables implicit addition of -lm on some
toolchains.

Add a dedicated flag -nostdlib++ that disables just linking of libc++ /
libstdc++. This is analogous to -nostdinc++.

https://reviews.llvm.org/D35780

llvm-svn: 308997
2017-07-25 18:02:57 +00:00
Simon Dardis 7d31878674 [mips] Add support for -m(no-)extern-data.
Add support for -m(no-)extern-data when using -mgpopt in the driver. It is
enabled by default in the backend.

Reviewers: atanasyan, slthakur

Differential Revision: https://reviews.llvm.org/D35550

llvm-svn: 308879
2017-07-24 14:02:09 +00:00
Petr Hosek 67fe74b122 [Driver] Fuchsia defaults to -fno-math-errno
Patch by Roland McGrath

Differential Revision: https://reviews.llvm.org/D35747

llvm-svn: 308855
2017-07-23 22:30:13 +00:00
Yuka Takahashi b40f4db4af [Bash-autocompletion] Fixed typo and add '-' after -Wno
Summary: -Wno-<warning> was autocompleted as -Wno<warning>, so fixed this typo.

Differential Revision: https://reviews.llvm.org/D35762

llvm-svn: 308824
2017-07-22 12:35:15 +00:00
Erich Keane 2b9657b570 Remove Bitrig: Clang Changes
Bitrig code has been merged back to OpenBSD, thus the OS has been abandoned.

Differential Revision: https://reviews.llvm.org/D35708

llvm-svn: 308797
2017-07-21 22:46:31 +00:00
Petr Hosek eb4127ffb5 [Driver] Consider -fno-sanitize=... state when filtering out -fsanitize-coverage=...
The driver ignores -fsanitize-coverage=... flags when also given
-fsanitize=... flags for sanitizer flavors that don't support the
coverage runtime. This logic failed to account for subsequent
-fno-sanitize=... flags that disable the sanitizer flavors that
conflict with -fsanitize-coverage=... flags.

Patch by Roland McGrath

Differential Revision: https://reviews.llvm.org/D35603

llvm-svn: 308707
2017-07-21 01:17:49 +00:00
Simon Dardis 9f1d5d8cd5 [mips] Add support for -m(no-)local-sdata
Teach the driver to support -mlocal-sdata. The backend already matches GCC's
default behaviour.

Reviewers: atanasyan, slthakur

Differential Revision: https://reviews.llvm.org/D35549

llvm-svn: 308683
2017-07-20 22:23:21 +00:00
Simon Dardis 31636a1fd9 Reland "[mips] Teach the driver to accept -m(no-)gpopt."
This patch teaches the driver to pass -mgpopt by default to the backend when it
is supported, i.e. we are using -mno-abicalls.

Reviewers: atanasyan, slthakur

Differential Revision: https://reviews.llvm.org/D35548

This version fixes a logic error that generated warnings incorrectly and
gets rid of spurious arguments to the backend when -mgpopt is not used.

llvm-svn: 308619
2017-07-20 14:04:12 +00:00
Simon Dardis 4c5fd9cd7f Revert "Reland "[mips] Teach the driver to accept -m(no-)gpopt.""
This reverts r308458. Investigating further buildbot breakage.

llvm-svn: 308459
2017-07-19 13:34:08 +00:00
Simon Dardis badcc7e74b Reland "[mips] Teach the driver to accept -m(no-)gpopt."
This patch teaches the driver to pass -mgpopt by default to the backend when it
is supported, i.e. we are using -mno-abicalls.

Reviewers: atanasyan, slthakur

Differential Revision: https://reviews.llvm.org/D35548

This version fixes a logic error that generated warnings incorrectly.

llvm-svn: 308458
2017-07-19 13:12:37 +00:00
Simon Dardis a923f0e9ce Revert "[mips] Teach the driver to accept -m(no-)gpopt."
Revert r308431 and r308432, these caused broke some buildbots.

llvm-svn: 308436
2017-07-19 11:11:02 +00:00
Simon Dardis 76ea96bbce [mips] Add warning test for -mgpopt option.
llvm-svn: 308432
2017-07-19 10:39:15 +00:00
Simon Dardis e435e41e01 [mips] Teach the driver to accept -m(no-)gpopt.
This patch teaches the driver to pass -mgpopt by default to the backend when it
is supported, i.e. we are using -mno-abicalls.

Reviewers: atanasyan, slthakur

Differential Revision: https://reviews.llvm.org/D35548

llvm-svn: 308431
2017-07-19 10:38:03 +00:00
Petr Hosek dcf3d49a8e [Driver] Always use -z rodynamic for Fuchsia
Fuchsia uses read-only .dynamic section.

Differential Revision: https://reviews.llvm.org/D35582

llvm-svn: 308390
2017-07-18 23:23:16 +00:00
Sylvestre Ledru b78f3b89e1 Also add the option -no-pie (like -nopie)
Summary:
For example, this option is expected by ghc (haskell compiler). Currently, building with ghc will fail with:

```
clang: error: unknown argument: '-no-pie'
`gcc' failed in phase `Linker'. (Exit code: 1)
. /usr/share/haskell-devscripts/Dh_Haskell.sh && \
configure_recipe
```

This won't do anything (but won't fail with an error)


Reviewers: rafael, joerg

Reviewed By: joerg

Subscribers: joerg, cfe-commits

Differential Revision: https://reviews.llvm.org/D35462

llvm-svn: 308268
2017-07-18 06:54:54 +00:00
Ulrich Weigand cac24ab04c [SystemZ] Add support for IBM z14 processor (1/3)
This patch series adds support for the IBM z14 processor.  This part includes:
- Basic support for the new processor and its features.
- Support for low-level builtins mapped to new LLVM intrinsics.

Support for the -fzvector extension to vector float and the new
high-level vector intrinsics is provided by separate patches.

llvm-svn: 308197
2017-07-17 17:45:57 +00:00
Brad Smith 733fe193d3 Enable TLS support on OpenBSD, but default to the emulatated TLS model.
llvm-svn: 308155
2017-07-17 00:49:31 +00:00
Yuka Takahashi 64918d0b25 [Bash-autocompletion] Add support for -W<warning> and -Wno<warning>
Summary:
`-W[tab]` will autocomplete warnings defined in this link:
https://clang.llvm.org/docs/DiagnosticsReference.html#wweak-vtables

Differential Revision: https://reviews.llvm.org/D35447

llvm-svn: 308139
2017-07-16 15:07:20 +00:00
Faisal Vali 5f475b989c [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
2017-07-16 00:23:04 +00:00
Aaron Ballman 4a6d7d45cc Unconditionally use .init_array instead of .ctors on Solaris.
Patch by Fedor Sergeev

llvm-svn: 308038
2017-07-14 17:49:52 +00:00
Akira Hatanaka 136ec4987e [Driver] Respect -target when determining target platform on Apple
platforms.

Set the target OS based on -target if it is present on the command
line and -arch is not.

With this commit, "-target x86_64-apple-ios8.0" does the same thing as
"-arch x86_64 -mios-version-min=8.0".

rdar://problem/21012522

llvm-svn: 307982
2017-07-14 00:21:32 +00:00
Paul Robinson d23f2a8ad5 [PS4] Disable LTO unit features under ThinLTO, like for Darwin.
llvm-svn: 307964
2017-07-13 21:25:47 +00:00
Petr Hosek cc24851da6 Reland "[Driver] Update Fuchsia driver path handling"
Several improvements to the Fuchsia driver:

* Search for C++ library headers and libraries in directories that
are part of the toolchain distribution rather than sysroot.

* Use LLVM support utlities to construct paths to make sure the driver
is also usable on Windows for cross-compiling.

* Change the driver to inherit directly from ToolChain rather than
Generic_GCC since we don't need any of the GCC related multilib logic.

Differential Revision: https://reviews.llvm.org/D35328

llvm-svn: 307856
2017-07-12 22:14:41 +00:00
Simon Dardis ba8eb9c50c [mips][mt][7/7] Add driver option for the MIPS MT ASE.
Reviewers: atanasyan, slthakur

Differential Revision: https://reviews.llvm.org/D35254

llvm-svn: 307847
2017-07-12 21:13:05 +00:00
Petr Hosek ec770aa228 Revert "[Driver] Update Fuchsia driver path handling"
The tests are failing on Windows.

This reverts commit 429fe8229496f639df6b0b4734beedb1d4317aa5.

llvm-svn: 307845
2017-07-12 21:03:54 +00:00
Petr Hosek 8847dcbd6b [Driver] Update Fuchsia driver path handling
Several improvements to the Fuchsia driver:

* Search for C++ library headers and libraries in directories that
are part of the toolchain distribution rather than sysroot.

* Use LLVM support utlities to construct paths to make sure the driver
is also usable on Windows for cross-compiling.

* Change the driver to inherit directly from ToolChain rather than
Generic_GCC since we don't need any of the GCC related multilib logic.

Differential Revision: https://reviews.llvm.org/D32613

llvm-svn: 307830
2017-07-12 19:15:51 +00:00
Eric Liu 159094a2db Avoid white spaces in file names. NFC
Summary: White spaces in file names are causing Phabricator/SVN to crash.

Reviewers: bkramer

Subscribers: bogner, cfe-commits

Differential Revision: https://reviews.llvm.org/D35203

llvm-svn: 307551
2017-07-10 16:05:48 +00:00
Yuka Takahashi 33cf63b7f2 [Bash-autocompletion] Auto complete cc1 options if -cc1 is specified
Summary:
We don't want to autocomplete flags whose Flags class has `NoDriverOption` when argv[1] is not `-cc1`.

Another idea for this implementation is to make --autocomplete a cc1
option and handle it in clang Frontend, by porting --autocomplete
handler from Driver to Frontend, so that we can handle Driver options
and CC1 options in unified manner.

Differential Revision: https://reviews.llvm.org/D34770

llvm-svn: 307479
2017-07-08 17:48:59 +00:00
Alex Lorenz b249c9bcf5 Recommit [driver][macOS] Pick the system version for the
deployment target if the SDK is newer than the system

This commit reverts the revert commit r305891. Now the change from r305678
should be correct because `llvm::sys::getProcessTriple` now returns the correct
macOS version of the system after the LLVM change r307372.

Original commit message:

This commit improves the driver by making sure that it picks the system version
for the deployment target when the version of the macOS SDK is newer than the
system version.

rdar://29449467

Differential Revision: https://reviews.llvm.org/D34175

llvm-svn: 307388
2017-07-07 10:41:19 +00:00
Simon Atanasyan df406d18aa [driver][mips] Pass long-calls feature flag to the MIPS backend
Check the `-mlong-calls` command line option and pass the `long-calls`
feature flag to the backend. Handling of this feature flag in the backend
needs to be implemented by a separate commit.

llvm-svn: 307386
2017-07-07 10:35:33 +00:00
Joerg Sonnenberger c91996817f Add an option group for deprecated warnings. Add the removed
-fslp-vectorize-aggressive and -fno-slp-vectorize-aggressive flags back
under this group and test for the warning. Document the future removal
in the ReleaseNotes.

Differential Revision: https://reviews.llvm.org/D34926

llvm-svn: 306965
2017-07-01 21:36:21 +00:00
Eric Christopher 6f357afee2 Update clang support for -mexecute-only/-mpure-code for backend change to use subtarget feature rather than command line option.
llvm-svn: 306928
2017-07-01 02:55:23 +00:00
Akira Hatanaka dc9d8fb9ce [Driver] Check that the iOS deployment target is iOS 10 or earlier if
the target is 32-bit.

The following changes are made to the driver since 32-bit apps do not
run on iOS 11 or later:

- If the deployment target is set explicitly, either with a command-line
  option or an environment variable, the driver should report an error
  if the version is greater than iOS 10.

- In the case where the deployment target is not set explicitly and the
  default is inferred from the target triple or SDK version, it should
  use a maximum default of iOS 10.99.99.

rdar://problem/32230613

Differential Revision: https://reviews.llvm.org/D34529

llvm-svn: 306922
2017-07-01 00:57:52 +00:00
Saleem Abdulrasool a517a0a520 Driver: honor -nostdinc and -isystem-after on CrossWindows
This changes CrossWindows to look for -nostdinc instead of -nostdlibinc.
In addition, fixes a bug where -isystem-after options would be dropped
when called with -nostdinc.

Patch by Dave Lee!

llvm-svn: 306829
2017-06-30 15:15:38 +00:00
Eric Christopher b11a3222e8 Add -no-canonical-prefixes to the test line so that we can handle different build modes.
llvm-svn: 306790
2017-06-30 06:03:47 +00:00
Chandler Carruth b853ef9947 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
2017-06-30 05:13:31 +00:00
Reid Kleckner b640ab92c2 Fix openmp-offload.c test on Windows
llvm-svn: 306751
2017-06-29 22:31:16 +00:00
George Karpenkov 3f984ecb45 [libFuzzer] Add Fuzzer to the list of sanitizers which support coverage.
Without this change, additional coverage flags specified after
-fsanitize=fuzzer would get discarded.

https://reviews.llvm.org/D34794

llvm-svn: 306734
2017-06-29 19:58:20 +00:00
George Karpenkov 2363fdd30f [libFuzzer] Do not link in libFuzzer with -fsanitize=fuzzer when producing a shared object
https://reviews.llvm.org/D34791

llvm-svn: 306733
2017-06-29 19:52:33 +00:00
Gheorghe-Teodor Bercea 7916da2347 [OpenMP] Fix test for revision D29645. NFC
llvm-svn: 306724
2017-06-29 18:49:16 +00:00
Akira Hatanaka cae83f78aa [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
2017-06-29 18:48:40 +00:00
Gheorghe-Teodor Bercea 3addb7d850 [OpenMP] Pass -fopenmp-is-device to preprocessing and machine specific code generation stages
Summary: The preprocessing and code generation and optimization stages of the compiler are also passed the "-fopenmp-is-device" flag. This is used to trigger machine specific preprocessing and code generation when performing device offloading to an NVIDIA GPU via OpenMP directives.

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

Reviewed By: Hahnfeld

Subscribers: Hahnfeld, rengolin

Differential Revision: https://reviews.llvm.org/D29645

llvm-svn: 306691
2017-06-29 15:59:19 +00:00
Gheorghe-Teodor Bercea 59d7b77b16 [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
2017-06-29 15:49:03 +00:00
Nikolai Bozhenov 35d3c35bea Reapply "Frontend support for Nios2 target"
Summary:
- Implements TargetInfo class for Nios2 target.
- Enables handling of -march and -mcpu options for Nios2 target.
- Definition of Nios2 builtin functions.

Reviewed By: craig.topper

Differential Revision: https://reviews.llvm.org/D33356

Author: belickim <mateusz.belicki@intel.com>
llvm-svn: 306383
2017-06-27 09:48:24 +00:00
Ed Schouten 4dabea22d3 Add support for Ananas platform
Ananas is a home-brew operating system, mainly for amd64 machines. After
using GCC for quite some time, it has switched to clang and never looked
back - yet, having to manually patch things is annoying, so it'd be much
nicer if this was in the official tree.

More information:

https://github.com/zhmu/ananas/
https://rink.nu/projects/ananas.html

Submitted by:	Rink Springer
Differential Revision:	https://reviews.llvm.org/D32936

llvm-svn: 306239
2017-06-25 08:29:09 +00:00
Vedant Kumar 7aacb659da [ubsan] Disable the object size check at -O0
This check currently isn't able to diagnose any issues at -O0, not is it
likely to [1]. Disabling the check at -O0 leads to substantial compile
time and binary size savings.

[1] [cfe-dev] Disabling ubsan's object size check at -O0

Differential Revision: https://reviews.llvm.org/D34563

llvm-svn: 306181
2017-06-23 23:15:24 +00:00
Yuka Takahashi 90caa8ff4b [GSoC] Add support for CC1 options.
Summary:
Add value completion support for options which are defined in
CC1Options.td, because we only handled options in Options.td.

Reviewers: ruiu, v.g.vassilev, teemperor

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D34558

llvm-svn: 306127
2017-06-23 17:05:50 +00:00
Saleem Abdulrasool 9ac7181a2c test: fix negative test case
Add missing -### to the driver to ensure that we dont try to run the
actual command.  The host may not support the IAS.  Should fix the SCEI
buildbots.

llvm-svn: 306123
2017-06-23 16:52:49 +00:00
Rui Ueyama 5cb4b35b80 Sort the autocomplete candidates before printing them out.
Currently, autocompleted options are displayed in the same order as we
wrote them in .td files. This patch sort them out in clang so that they
are sorted alphabetically. This should improve usability.

Differential Revision: https://reviews.llvm.org/D34557

llvm-svn: 306116
2017-06-23 15:37:52 +00:00
Saleem Abdulrasool d064e91ece 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
2017-06-23 15:34:16 +00:00
Sam Clegg 8202e86a99 [WebAssembly] Add default -allow-undefined-file to linker args
Also, don't use the outdated lib32/lib64 naming of files
within the sysroot. The more modern/flexible approach
IIUC is to use seperate sysroots or /lib/<target-tripple>
and /include/<target-tripple>.

Differential Revision: https://reviews.llvm.org/D33565

llvm-svn: 306074
2017-06-23 00:02:55 +00:00
Rui Ueyama 0f8a345fb4 Use -NOT prefix instead of adding `not` to FileCheck.
If we want to make sure that a particular string is not in an output,
the regular way of doing it is to add `-NOT` prefix instead of checking
if FileCheck resulted in an error.

Differential Revision: https://reviews.llvm.org/D34435

llvm-svn: 305930
2017-06-21 16:50:38 +00:00
Alex Lorenz 71d72135b0 Revert r305678: [driver][macOS] Pick the system version for the
deployment target if the SDK is newer than the system

This commit also reverts follow-up commits r305680 and r305685 that have
buildbot fixes.

The change in r305678 wasn't correct because it relied on
`llvm::sys::getProcessTriple`, which uses a pre-configured OS version. We should
lookup the actual macOS version of the system on which the compiler is running.

llvm-svn: 305891
2017-06-21 10:27:24 +00:00
Yuka Takahashi ba5d4af490 [GSoC] Flag value completion for clang
This is patch for GSoC project, bash-completion for clang.

To use this on bash, please run `source clang/utils/bash-autocomplete.sh`.
bash-autocomplete.sh is code for bash-completion.

In this patch, Options.td was mainly changed in order to add value class
in Options.inc.

llvm-svn: 305805
2017-06-20 16:31:31 +00:00
Alex Lorenz 89cfff03ee Move the test from r305678 to a separte file with 'REQUIRES: system-darwin'
Otherwise it will fail on non-macOS systems.

llvm-svn: 305685
2017-06-19 12:13:59 +00:00
Alex Lorenz dad1e1a3b5 [driver][macOS] Pick the system version for the deployment target
if the SDK is newer than the system

This commit improves the driver by making sure that it picks the system version
for the deployment target when the version of the macOS SDK is newer than the
system version.

rdar://29449467

Differential Revision: https://reviews.llvm.org/D34175

llvm-svn: 305678
2017-06-19 10:57:27 +00:00
Daniel Jasper 16809493c5 Ignore return value in test.
llvm-svn: 305574
2017-06-16 19:29:20 +00:00
Yuka Takahashi cdb5348738 Fix a bug that warnings generated with -M or -MM flags
This is a patch for bug: https://bugs.llvm.org/show_bug.cgi?id=6817

Warnings should not be emitted with -M and -MM flags, because this mode
is only used for generate MakeFiles.

llvm-svn: 305561
2017-06-16 16:01:13 +00:00
Daniel Jasper cdc4408bbf 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
2017-06-12 08:08:18 +00:00
Saleem Abdulrasool 617034da8f test: attempt to repair build bots
Split the no-ias tests and give them a target to ensure that they go
down the GNU toolchain path.  Adjust the no compression support tests.

llvm-svn: 305167
2017-06-11 18:55:17 +00:00
Saleem Abdulrasool 7289ba9165 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
2017-06-11 17:49:23 +00:00
Saleem Abdulrasool d3ba0ac2a5 Driver: pass along [-]-[no]compress-debug-sections unfiltered
Rather than validating the flags, pass them through without any
validation.  Arguments passed via -Wa or -Xassembler are passed directly
to the assembler without validation.  The validation was previously
required since we did not provide proper driver level support for
controlling the debug compression on ELF targets.  A subsequent change
will add support for the `-gz` and `-gz=` flags which provide proper
driver level control of the ELF compressed debug sections.

llvm-svn: 305164
2017-06-11 17:49:17 +00:00
Nikolai Bozhenov de57795cc8 Revert of r305066 "Reapply Frontend support for Nios2 target"
llvm-svn: 305068
2017-06-09 12:09:29 +00:00
Nikolai Bozhenov b2de17c734 Reapply "Frontend support for Nios2 target"
Summary:
- Implements TargetInfo class for Nios2 target.
- Enables handling of -march and -mcpu options for Nios2 target.
- Definition of Nios2 builtin functions.

Reviewed By: craig.topper

Differential Revision: https://reviews.llvm.org/D33356

Author: belickim <mateusz.belicki@intel.com>
llvm-svn: 305066
2017-06-09 10:56:18 +00:00
Kostya Serebryany 2c2fb8896b [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
2017-06-08 22:58:19 +00:00
Nikolai Bozhenov 1c36934883 Revert "Frontend support for Nios2 target"
As it breaks many buildbots.

llvm-svn: 305002
2017-06-08 18:36:35 +00:00
Nikolai Bozhenov 32dc6c8540 Frontend support for Nios2 target.
Summary:
- Implements TargetInfo class for Nios2 target.
- Enables handling of -march and -mcpu options for Nios2 target.
- Definition of Nios2 builtin functions.

Reviewed By: craig.topper

Differential Revision: https://reviews.llvm.org/D33356

Author: belickim <mateusz.belicki@intel.com>
llvm-svn: 304994
2017-06-08 17:40:30 +00:00
Alexander Potapenko dc5b95b553 [sanitizer-coverage] Allow using KASAN instrumentation with sancov
llvm-svn: 304984
2017-06-08 16:24:21 +00:00
Maxim Ostapenko 154a4fd5dc [Driver] Add test to cover case when LSan is not supported
This commit adds a testcase for uncovered code paths in LSan options parsing logic in driver.

Differential Revision: https://reviews.llvm.org/D33941

llvm-svn: 304880
2017-06-07 08:51:15 +00:00
Shoaib Meenai 462f36d36d [Driver] Don't force .exe suffix for lld
When cross-compiling to Windows using lld, we want the driver to invoke
it as lld-link rather than lld-link.exe. On Windows, the LLVM fs
functions take care of adding the .exe suffix where necessary, so we can
just drop the addition in the toolchain entirely.

Differential Revision: https://reviews.llvm.org/D33923

llvm-svn: 304761
2017-06-06 02:06:28 +00:00
Michal Gorny 997f7764be [test] Fix baremetal test to allow any -resource-dir
The baremetal test (r303873) has been added with expectance of very
specific -resource-dir. However, the test itself nor the BareMetal
driver does not enforce any specific -resource-dir, making this
constraint invalid. It already has been altered twice -- in r303910 for
Windows compatibility, and in r304085 for systems using lib64. To
account for even more systems, just use [[RESOURCE_DIR]] like a number
of other tests do. This is needed for Gentoo where RESOURCE_DIR starts
with ../ (uses relative path to a parent directory).

Differential Revision: https://reviews.llvm.org/D33877

llvm-svn: 304715
2017-06-05 14:13:37 +00:00
Renato Golin de72b918f3 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
2017-06-05 07:35:45 +00:00
Kostya Serebryany e425aada63 [sanitizer-coverage] one more flavor of coverage: -fsanitize-coverage=inline-8bit-counters. Experimental so far, not documenting yet. (clang part)
llvm-svn: 304631
2017-06-03 01:36:23 +00:00
Vedant Kumar a125eb55cb [ubsan] Add a check for pointer overflow UB
Check pointer arithmetic for overflow.

For some more background on this check, see:

  https://wdtz.org/catching-pointer-overflow-bugs.html
  https://reviews.llvm.org/D20322

Patch by Will Dietz and John Regehr!

This version of the patch is different from the original in a few ways:

  - It introduces the EmitCheckedInBoundsGEP utility which inserts
    checks when the pointer overflow check is enabled.

  - It does some constant-folding to reduce instrumentation overhead.

  - It does not check some GEPs in CGExprCXX. I'm not sure that
    inserting checks here, or in CGClass, would catch many bugs.

Possible future directions for this check:

  - Introduce CGF.EmitCheckedStructGEP, to detect overflows when
    accessing structures.

Testing: Apart from the added lit test, I ran check-llvm and check-clang
with a stage2, ubsan-instrumented clang. Will and John have also done
extensive testing on numerous open source projects.

Differential Revision: https://reviews.llvm.org/D33305

llvm-svn: 304459
2017-06-01 19:22:18 +00:00
Alexander Kornienko c7a0b672b8 Make the clang-cl test less restrictive.
Make the test less restrictive to allow directory layout used in our test setup.

llvm-svn: 304408
2017-06-01 11:41:21 +00:00
Kristof Beyls 348df0de15 Adapt tests after making mcpu=generic the default for armv7-a and armv8-a.
llvm-svn: 304391
2017-06-01 07:31:50 +00:00
Reid Kleckner 8ea89eaf7d [clang-cl] Expose -nostdinc and -nobuiltininc
These are already wired up to work in the MSVC toolchain header search
code. However, they were unreachable from clang-cl. A user attempted to
use them in https://bugs.llvm.org/show_bug.cgi?id=33205, so let's expose
them.

llvm-svn: 304345
2017-05-31 20:42:43 +00:00
Reid Kleckner 1d4cde6283 Fix cl-diagnostics.c test by hardcoding the version of MSVC to mimic
llvm-svn: 304337
2017-05-31 20:07:36 +00:00
Reid Kleckner 2918a2000b Add test case for r304316 which implemented clang-cl /diagnostics:*
llvm-svn: 304336
2017-05-31 20:02:27 +00:00
Reid Kleckner 6344f10fa9 Fix incorrect spelling of calling conv flag and add -Wno-msvc-not-found to test
llvm-svn: 304308
2017-05-31 15:50:35 +00:00
Reid Kleckner 4b2f3269ab [clang-cl] Improve default calling convention flag handling
Ignore default CC flags that don't make sense for the target arch. This
is consistent with MSVC.

Addresses part of PR33237

llvm-svn: 304305
2017-05-31 15:39:28 +00:00
Reid Kleckner 36438ba651 [clang-cl] Ignore /Zc:ternary, clang behaves this way already
Addresses part of PR33237

llvm-svn: 304303
2017-05-31 14:50:28 +00:00
Alexey Bataev 9780faaf8f [OpenMP][Driver] Put target binary for each offload target into a
separate section, by Sergey Dmitriev

Linker script that is generated by the clang driver for creating fat binary puts target binaries for all offload targets into a single ELF section .omp_offloading. This is not convenient because it greatly complicates operations with the final fat binary once it is linked. For example extracting target binary for a particular target from such fat executable would not be an easy task if you have more than one offload target.

Attached patch changes clang driver to put target binary for each
offload target into a separate ELF section .omp_offloading.<target
triple>.

Differential Revision: https://reviews.llvm.org/D33254

llvm-svn: 304229
2017-05-30 18:57:51 +00:00
Mehdi Amini 6aa9e9b41a IRGen: Add optnone attribute on function during O0
Amongst other, this will help LTO to correctly handle/honor files
compiled with O0, helping debugging failures.
It also seems in line with how we handle other options, like how
-fnoinline adds the appropriate attribute as well.

Differential Revision: https://reviews.llvm.org/D28404

llvm-svn: 304127
2017-05-29 05:38:20 +00:00
Ismail Donmez fd934c29d3 baremetal.cpp: Fix tests where lib suffix is 64
llvm-svn: 304085
2017-05-28 06:15:42 +00:00
Richard Trieu d3bc3e0138 "*" => "+" to avoid matching on empty string.
llvm-svn: 303934
2017-05-25 23:25:36 +00:00
Richard Trieu 13b12dc02d Make test/Driver/baremetal.cpp work when output directory isn't named 'bin'.
llvm-svn: 303932
2017-05-25 23:03:08 +00:00