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Summary:
Just like gcc, we should have the -Og option as more and more software are using it:
https://llvm.org/bugs/show_bug.cgi?id=20765

Reviewers: echristo, dberlin, dblaikie, keith.walker.arm, rengolin

Subscribers: aprantl, friss, mehdi_amini, RKSimon, probinson, majnemer, cfe-commits

Differential Revision: https://reviews.llvm.org/D24998

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Reviewers: sbenza, lukasza, aaron.ballman, klimek

Subscribers: lukasza, sbenza, cfe-commits

Differential Revision: https://reviews.llvm.org/D26032

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-fbuiltin-module-map loads the clang builtins modulemap file. (This is
equivalent to -fmodule-map-file=<resource dir>/include/module.modulemap)

Differential Revision: https://reviews.llvm.org/D25767



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TSan and MSan were the only remaining sanitizers referring to the deprecated
attribute for issue suppression. Update the docs to recommend
__attribute__((no_sanitize("..."))) instead.

Differential Revision: https://reviews.llvm.org/D25885

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The 'no_undeclared_includes' attribute should be used in a module to
tell that only non-modular headers and headers from used modules are
accepted.

The main motivation behind this is to prevent dep cycles between system
libraries (such as darwin) and libc++.

Patch by Richard Smith!

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@284797 91177308-0d34-0410-b5e6-96231b3b80d8

Differential Revision:  https://reviews.llvm.org/D25537

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Summary: Document potential implementation of CFI in hardware.

Reviewers: eugenis, pcc

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D25455

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Make the -print-libgcc-file-name option print an appropriate compiler
runtime library, that is libgcc.a if gcc runtime is used
and an appropriate compiler-rt library if that runtime is used.

The main use for this is to allow linking executables built with
-nodefaultlibs (e.g. to avoid linking to the standard C++ library) to
the compiler runtime library, e.g. using:

  clang++ ... -nodefaultlibs $(clang++ ... -print-libgcc-file-name)

in which case currently a program built like this linked to the gcc
runtime unconditionally. The patch fixes it to use compiler-rt libraries
instead when compiler-rt is the active runtime.

Differential Revision: https://reviews.llvm.org/D25338

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Revert the -print-libgcc-file-name change as the new test fails
on Darwin. It needs to be updated to run the libgcc part only on systems
supporting that rtlib.

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Make the -print-libgcc-file-name option print an appropriate compiler
runtime library, that is libgcc.a if gcc runtime is used
and an appropriate compiler-rt library if that runtime is used.

The main use for this is to allow linking executables built with
-nodefaultlibs (e.g. to avoid linking to the standard C++ library) to
the compiler runtime library, e.g. using:

  clang++ ... -nodefaultlibs $(clang++ ... -print-libgcc-file-name)

in which case currently a program built like this linked to the gcc
runtime unconditionally. The patch fixes it to use compiler-rt libraries
instead when compiler-rt is the active runtime.

Differential Revision: https://reviews.llvm.org/D25338

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Summary:
With this commit simple coroutines can be created in plain C using coroutine builtins.

Reviewers: rnk, EricWF, rsmith

Subscribers: modocache, mgorny, mehdi_amini, beanz, cfe-commits

Differential Revision: https://reviews.llvm.org/D24373

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[sanitizer-coverage/libFuzzer] make the guards for trace-pc 32-bit; create one array of guards per function, instead of one guard per BB. reorganize the code so that trace-pc-guard does not create unneeded globals

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Warning, treated as error:
/opt/llvm/build.attributes.src/tools/clang/docs/CommandGuide/clang.rst:413: WARNING: unknown option: -save-stats=cwd


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Reviewers: aaron.ballman

Subscribers: klimek, cfe-commits

Differential Revision: https://reviews.llvm.org/D24928

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This option behaves in a similar spirit as -save-temps and writes
internal llvm statistics in json format to a file.

Differential Revision: https://reviews.llvm.org/D24820

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Reviewers: klimek

Subscribers: cfe-commits, klimek

Differential Revision: https://reviews.llvm.org/D24821

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Bot now complaining about -flto=thin reference, used similar workaround
for that failure.

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The fix in r282148 was not enough to fix the following error:
/home/llvmbb/llvm-build-dir/clang-sphinx-docs/llvm/src/tools/clang/docs/CommandGuide/clang.rst:338:
WARNING: unknown option: -flto=full

on the sphinx bot:
  http://lab.llvm.org:8011/builders/clang-sphinx-docs/builds/16313

(not reproducible locally).

This time, simply remove the option reference.

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/opt/llvm/build.attributes.src/tools/clang/docs/CommandGuide/clang.rst:338: WARNING: unknown option: -flto=full

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Summary: Add some user facing documentation on ThinLTO and how to use it.

Reviewers: mehdi_amini

Subscribers: mehdi_amini, cfe-commits

Differential Revision: https://reviews.llvm.org/D24806

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Since this is a header it will break links to this section.


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Flesh out the section on interpreting coverage reports, mention the
coverage export feature, and add notes on how to build llvm with
coverage turned on.

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[libFuzzer] use 'if guard' instead of 'if guard >= 0' with trace-pc; change the guard type to intptr_t; use separate array for 8-bit counters

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This patch adds an entry for "-rtlib" in the output of `man clang` and `clang -help`.

Patch by Lei Zhang!

Differential Revision: https://reviews.llvm.org/D24069

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padding around table cells so the borders of adjacent tables don't run into
each other (now that they're perfectly aligned).


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