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2016-12-07Driver: Remove support for -fobjc-gc*Duncan P. N. Exon Smith1-10/+0
As a first step toward removing Objective-C garbage collection from Clang, remove support from the driver. I'm hoping this will flush out any expected bots/configurations/whatever that might rely on it. I've left the options behind temporarily in -cc1 to keep tests passing. I'll kill them off entirely in a follow up when I've had a chance to update/delete the rest of Clang. llvm-svn: 288872
2016-11-11Add a new optimization option -Og Sylvestre Ledru1-1/+4
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 llvm-svn: 286602
2016-10-10[Driver] Make -print-libgcc-file-name print compiler-rt lib when usedMichal Gorny1-1/+2
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 llvm-svn: 283746
2016-10-07Revert r283572 - [Driver] Make -print-libgcc-file-name print compiler-rt lib ↵Michal Gorny1-2/+1
when used 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. llvm-svn: 283586
2016-10-07[Driver] Make -print-libgcc-file-name print compiler-rt lib when usedMichal Gorny1-1/+2
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 llvm-svn: 283572
2016-09-27Silencing a Sphinx diagnostic with options, again.Aaron Ballman1-2/+2
Warning, treated as error: /opt/llvm/build.attributes.src/tools/clang/docs/CommandGuide/clang.rst:413: WARNING: unknown option: -save-stats=cwd llvm-svn: 282484
2016-09-26CC1: Add -save-stats optionMatthias Braun1-0/+6
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 llvm-svn: 282426
2016-09-22Third attempt to fix Sphinx botTeresa Johnson1-1/+1
Bot now complaining about -flto=thin reference, used similar workaround for that failure. llvm-svn: 282154
2016-09-22Second attempt to fix Sphinx botTeresa Johnson1-1/+1
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. llvm-svn: 282151
2016-09-22Fixing sphinx build due to diagnostic:Aaron Ballman1-1/+1
/opt/llvm/build.attributes.src/tools/clang/docs/CommandGuide/clang.rst:338: WARNING: unknown option: -flto=full llvm-svn: 282148
2016-09-21[docs] Add ThinLTO user documentationTeresa Johnson1-1/+7
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 llvm-svn: 282089
2016-09-14Document option '-rtlib' in clang's man page and help infoJonas Hahnfeld1-1/+6
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 llvm-svn: 281440
2016-07-11[man page] Document -gline-tables-only in the clang man page.Adrian Prantl1-12/+22
llvm-svn: 275076
2016-07-11[man page] Fix two sphinx build errors.Adrian Prantl1-2/+2
These options were referenced by other paragraphs, but never specified. llvm-svn: 275075
2015-12-22Document that we recommend to turn off -gmodules when building a staticAdrian Prantl1-1/+6
library for distribution to other machines on the clang man page. llvm-svn: 256287
2015-08-27Add a -gmodules option to the driver and a -dwarf-ext-refs to cc1Adrian Prantl1-0/+7
to enable the use of external type references in the debug info (a.k.a. module debugging). The driver expands -gmodules to "-g -fmodule-format=obj -dwarf-ext-refs" and passes that to cc1. All this does at the moment is set a flag codegenopts. http://reviews.llvm.org/D11958 llvm-svn: 246192
2015-06-30Sphinx-based clang man pagesAndrew Wilkins2-0/+501
Summary: This diff introduces .rst files, Sphinx config, and a CMake target for building clang man pages. This will deprecate the existing .pod- based man page, and will integrate nicely with CMake. This diff does not remove the existing man page; that will be done in a follow-up once packagers have had a chance to react to the change. For now, only clang(1) has been done; others can be added over time by dropping additional files into the docs/CommandGuide directory. The index page for CommandGuide has been copied from LLVM's docs/CommandGuide. The man page itself is mostly the same, with a few minor cosmetic changes. The only major change is the SYNOPSIS section. I was unable to get .rst/Sphinx produce the same style as in the existing man page. Instead, I changed it to match the LLVM tools' relatively simple style. To build the man pages, use the "docs-clang-man" target if building with CMake. Otherwise, use "make -f Makefile.sphinx man". Reviewers: cmatthews, silvas Subscribers: dim, gaeke, beanz, cfe-commits Differential Revision: http://reviews.llvm.org/D10562 llvm-svn: 241037
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