$ bin/clang-tblgen -gen-opt-docs -I../cfe.src/include \
    -I../cfe.src/include/clang/Driver -I../llvm.src/include \
    ../cfe.src/include/clang/Driver/ClangOptionDocs.td \
    -o ../cfe.src/docs/ClangCommandLineReference.rst


git-svn-id: https://llvm.org/svn/llvm-project/cfe/branches/release_60@325793 91177308-0d34-0410-b5e6-96231b3b80d8

$ bin/clang-tblgen -gen-opt-docs -I../cfe.src/include \
    -I../cfe.src/include/clang/Driver -I../llvm.src/include \
    ../cfe.src/include/clang/Driver/ClangOptionDocs.td \
    -o ../cfe.src/docs/ClangCommandLineReference.rst


git-svn-id: https://llvm.org/svn/llvm-project/cfe/branches/release_60@321745 91177308-0d34-0410-b5e6-96231b3b80d8

This adds a new command line option -mprefer-vector-width to specify a preferred vector width for the vectorizers. Valid values are 'none' and unsigned integers. The driver will check that it meets those constraints. Specific supported integers will be managed by the targets in the backend.

Clang will take the value and add it as a new function attribute during CodeGen.

This represents the alternate direction proposed by Sanjay in this RFC: http://lists.llvm.org/pipermail/llvm-dev/2017-November/118734.html

The syntax here matches gcc, though gcc treats it as an x86 specific command line argument. gcc only allows values of 128, 256, and 512. I'm not having clang check any values.

Differential Revision: https://reviews.llvm.org/D40230

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@320419 91177308-0d34-0410-b5e6-96231b3b80d8

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@320418 91177308-0d34-0410-b5e6-96231b3b80d8

This is a re-apply of r319294.

adds -fseh-exceptions and -fdwarf-exceptions flags

clang will check if the user has specified an exception model flag,
in the absense of specifying the exception model clang will then check
the driver default and append the model flag for that target to cc1

-fno-exceptions has a higher priority then specifying the model

move __SEH__ macro definitions out of Targets into InitPreprocessor
behind the -fseh-exceptions flag

move __ARM_DWARF_EH__ macrodefinitions out of verious targets and into
InitPreprocessor behind the -fdwarf-exceptions flag and arm|thumb check

remove unused USESEHExceptions from the MinGW Driver

fold USESjLjExceptions into a new GetExceptionModel function that
gives the toolchain classes more flexibility with eh models

Reviewers: rnk, mstorsjo

Differential Revision: https://reviews.llvm.org/D39673

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@319297 91177308-0d34-0410-b5e6-96231b3b80d8

This reverts rL319294.
The windows sanitizer does not like seh on x86.
Will re apply with None type for x86

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@319295 91177308-0d34-0410-b5e6-96231b3b80d8

adds -fseh-exceptions and -fdwarf-exceptions flags

clang will check if the user has specified an exception model flag,
in the absense of specifying the exception model clang will then check
the driver default and append the model flag for that target to cc1

clang cc1 assumes dwarf is the default if none is passed
and -fno-exceptions has a higher priority then specifying the model

move __SEH__ macro definitions out of Targets into InitPreprocessor
behind the -fseh-exceptions flag

move __ARM_DWARF_EH__ macrodefinitions out of verious targets and into
InitPreprocessor behind the -fdwarf-exceptions flag and arm|thumb check

remove unused USESEHExceptions from the MinGW Driver

fold USESjLjExceptions into a new GetExceptionModel function that
gives the toolchain classes more flexibility with eh models

Reviewers: rnk, mstorsjo

Differential Revision: https://reviews.llvm.org/D39673

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@319294 91177308-0d34-0410-b5e6-96231b3b80d8

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@318672 91177308-0d34-0410-b5e6-96231b3b80d8

Summary:
This change allows generalizing pointers in type signatures used for
cfi-icall by enabling the -fsanitize-cfi-icall-generalize-pointers flag.
This works by 1) emitting an additional generalized type signature
metadata node for functions and 2) llvm.type.test()ing for the
generalized type for translation units with the flag specified.

This flag is incompatible with -fsanitize-cfi-cross-dso because it would
require emitting twice as many type hashes which would increase artifact
size.

Reviewers: pcc, eugenis

Reviewed By: pcc

Subscribers: kcc

Differential Revision: https://reviews.llvm.org/D39358

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@317044 91177308-0d34-0410-b5e6-96231b3b80d8

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@312106 91177308-0d34-0410-b5e6-96231b3b80d8

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@308641 91177308-0d34-0410-b5e6-96231b3b80d8

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@300270 91177308-0d34-0410-b5e6-96231b3b80d8

The alias was only ever used on darwin and had some issues there,
and isn't used in practice much. Also fixes a problem with -mno-altivec
not turning off -maltivec.

Also add a diagnostic for faltivec/fno-altivec that directs users to use
maltivec options and include the altivec.h file explicitly.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@298449 91177308-0d34-0410-b5e6-96231b3b80d8

[X86] Add -mprefetchwt1/-mno-prefetchwt1 command line options and __PREFETCHWT1__ define to match gcc.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@294424 91177308-0d34-0410-b5e6-96231b3b80d8

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@294423 91177308-0d34-0410-b5e6-96231b3b80d8

[X86] Update command line documentation for -mclwb and -mmovbe which I forgot in my previous commits.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@294420 91177308-0d34-0410-b5e6-96231b3b80d8

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@294419 91177308-0d34-0410-b5e6-96231b3b80d8

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@294411 91177308-0d34-0410-b5e6-96231b3b80d8

Also accept -G= (and -msmall-data-threshold=) as an alias for -G on MIPS as well as Hexagon.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@293254 91177308-0d34-0410-b5e6-96231b3b80d8

Improve workaround for Sphinx's lack of support for command line options containing '+', '.' etc. to be more stable as the set of options changes.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@293252 91177308-0d34-0410-b5e6-96231b3b80d8

and generate documentation for all (non-hidden) options supported by the
'clang' driver.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@292968 91177308-0d34-0410-b5e6-96231b3b80d8