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[docs] Improve help for OpenMP options, NFC. 

* Add HelpText for -fopenmp so that it appears in clang --help.
 * Hide -fno-openmp-simd, only list the positive option.
 * Hide -fopenmp-relocatable-target and -fopenmp-use-tls from
   clang --help and from ClangCommandLineReference.
 * Improve MetaVarName for -Xopenmp-target=<...>.

Differential Revision: https://reviews.llvm.org/D42841

llvm-svn: 325806
This commit is contained in:
Jonas Hahnfeld 2018-02-22 17:06:35 +00:00
parent 3c7b136a82
commit 1b15be7262
1 changed files with 15 additions and 12 deletions
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27
clang/include/clang/Driver/Options.td
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@ -466,7 +466,8 @@ def Xcuda_ptxas : Separate<["-"], "Xcuda-ptxas">,
def Xopenmp_target : Separate<["-"], "Xopenmp-target">,
HelpText<"Pass <arg> to the target offloading toolchain.">, MetaVarName<"<arg>">;
def Xopenmp_target_EQ : JoinedAndSeparate<["-"], "Xopenmp-target=">,
HelpText<"Pass <arg> to the specified target offloading toolchain. The triple that identifies the toolchain must be provided after the equals sign.">, MetaVarName<"<arg>">;
HelpText<"Pass <arg> to the target offloading toolchain identified by <triple>.">,
MetaVarName<"<triple> <arg>">;
def z : Separate<["-"], "z">, Flags<[LinkerInput, RenderAsInput]>,
HelpText<"Pass -z <arg> to the linker">, MetaVarName<"<arg>">,
Group<Link_Group>;
@ -1397,24 +1398,26 @@ def fno_objc_nonfragile_abi : Flag<["-"], "fno-objc-nonfragile-abi">, Group<f_Gr
def fobjc_sender_dependent_dispatch : Flag<["-"], "fobjc-sender-dependent-dispatch">, Group<f_Group>;
def fomit_frame_pointer : Flag<["-"], "fomit-frame-pointer">, Group<f_Group>;
def fopenmp : Flag<["-"], "fopenmp">, Group<f_Group>, Flags<[CC1Option, NoArgumentUnused]>;
def fopenmp : Flag<["-"], "fopenmp">, Group<f_Group>, Flags<[CC1Option, NoArgumentUnused]>,
HelpText<"Parse OpenMP pragmas and generate parallel code.">;
def fno_openmp : Flag<["-"], "fno-openmp">, Group<f_Group>, Flags<[NoArgumentUnused]>;
def fopenmp_version_EQ : Joined<["-"], "fopenmp-version=">, Group<f_Group>, Flags<[CC1Option, NoArgumentUnused]>;
def fopenmp_EQ : Joined<["-"], "fopenmp=">, Group<f_Group>;
def fopenmp_use_tls : Flag<["-"], "fopenmp-use-tls">, Group<f_Group>, Flags<[NoArgumentUnused]>;
def fnoopenmp_use_tls : Flag<["-"], "fnoopenmp-use-tls">, Group<f_Group>, Flags<[CC1Option, NoArgumentUnused]>;
def fopenmp_use_tls : Flag<["-"], "fopenmp-use-tls">, Group<f_Group>,
Flags<[NoArgumentUnused, HelpHidden]>;
def fnoopenmp_use_tls : Flag<["-"], "fnoopenmp-use-tls">, Group<f_Group>,
Flags<[CC1Option, NoArgumentUnused, HelpHidden]>;
def fopenmp_targets_EQ : CommaJoined<["-"], "fopenmp-targets=">, Flags<[DriverOption, CC1Option]>,
HelpText<"Specify comma-separated list of triples OpenMP offloading targets to be supported">;
def fopenmp_dump_offload_linker_script : Flag<["-"], "fopenmp-dump-offload-linker-script">, Group<f_Group>,
Flags<[NoArgumentUnused]>;
def fopenmp_relocatable_target : Flag<["-"], "fopenmp-relocatable-target">, Group<f_Group>, Flags<[CC1Option, NoArgumentUnused]>,
HelpText<"OpenMP target code is compiled as relocatable using the -c flag. For OpenMP targets the code is relocatable by default.">;
def fnoopenmp_relocatable_target : Flag<["-"], "fnoopenmp-relocatable-target">, Group<f_Group>, Flags<[CC1Option, NoArgumentUnused]>,
HelpText<"Do not compile OpenMP target code as relocatable.">;
def fopenmp_dump_offload_linker_script : Flag<["-"], "fopenmp-dump-offload-linker-script">,
Group<f_Group>, Flags<[NoArgumentUnused, HelpHidden]>;
def fopenmp_relocatable_target : Flag<["-"], "fopenmp-relocatable-target">,
Group<f_Group>, Flags<[CC1Option, NoArgumentUnused, HelpHidden]>;
def fnoopenmp_relocatable_target : Flag<["-"], "fnoopenmp-relocatable-target">,
Group<f_Group>, Flags<[CC1Option, NoArgumentUnused, HelpHidden]>;
def fopenmp_simd : Flag<["-"], "fopenmp-simd">, Group<f_Group>, Flags<[CC1Option, NoArgumentUnused]>,
HelpText<"Emit OpenMP code only for SIMD-based constructs.">;
def fno_openmp_simd : Flag<["-"], "fno-openmp-simd">, Group<f_Group>, Flags<[CC1Option, NoArgumentUnused]>,
HelpText<"Disable OpenMP code for SIMD-based constructs.">;
def fno_openmp_simd : Flag<["-"], "fno-openmp-simd">, Group<f_Group>, Flags<[CC1Option, NoArgumentUnused]>;
def fno_optimize_sibling_calls : Flag<["-"], "fno-optimize-sibling-calls">, Group<f_Group>;
def foptimize_sibling_calls : Flag<["-"], "foptimize-sibling-calls">, Group<f_Group>;
def force__cpusubtype__ALL : Flag<["-"], "force_cpusubtype_ALL">;