S/390: Doc: Add documentation for -mhtm, -mvx, and -mzvector.
gcc/ChangeLog: * config/s390/s390.opt: Clarify description for -mzvector * doc/invoke.texi: Add documentation for -mhtm, -mvx, and -mzvector. From-SVN: r226671
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@ -1,3 +1,9 @@
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2015-08-06 Andreas Krebbel <krebbel@linux.vnet.ibm.com>
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* config/s390/s390.opt: Clarify description for -mzvector
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* doc/invoke.texi: Add documentation for -mhtm, -mvx, and
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-mzvector.
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2015-08-06 Richard Biener <rguenther@suse.de>
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* gimple.h (gimple_call_set_fn): Access op member directly.
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@ -158,7 +158,8 @@ mvcle use
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mzvector
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Target Report Mask(ZVECTOR)
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Enable the z vector language extension providing the context-sensitive vector macro.
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Enable the z vector language extension providing the context-sensitive
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vector macro and enable the Altivec-style builtins in vecintrin.h
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mwarn-dynamicstack
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Target RejectNegative Var(s390_warn_dynamicstack_p)
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@ -964,6 +964,7 @@ See RS/6000 and PowerPC Options.
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-mbackchain -mno-backchain -mpacked-stack -mno-packed-stack @gol
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-msmall-exec -mno-small-exec -mmvcle -mno-mvcle @gol
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-m64 -m31 -mdebug -mno-debug -mesa -mzarch @gol
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-mhtm -mvx -mzvector @gol
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-mtpf-trace -mno-tpf-trace -mfused-madd -mno-fused-madd @gol
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-mwarn-framesize -mwarn-dynamicstack -mstack-size -mstack-guard @gol
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-mhotpatch=@var{halfwords},@var{halfwords}}
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@ -20511,6 +20512,46 @@ When generating code compliant to the GNU/Linux for S/390 ABI,
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the default is @option{-mesa}. When generating code compliant
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to the GNU/Linux for zSeries ABI, the default is @option{-mzarch}.
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@item -mhtm
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@itemx -mno-htm
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@opindex mhtm
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@opindex mno-htm
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The @option{-mhtm} option enables a set of builtins making use of
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instructions available with the transactional execution facility
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introduced with the IBM zEnterprise EC12 machine generation
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@ref{S/390 System z Built-in Functions}.
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@option{-mhtm} is enabled by default when using @option{-march=zEC12}.
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@item -mvx
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@itemx -mno-vx
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@opindex mvx
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@opindex mno-vx
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When @option{-mvx} is specified, generate code using the instructions
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available with the vector extension facility introduced with the IBM
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z13 machine generation.
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This option changes the ABI for some vector type values with regard to
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alignment and calling conventions. In case vector type values are
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being used in an ABI-relevant context a GAS @samp{.gnu_attribute}
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command will be added to mark the resulting binary with the ABI used.
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@option{-mvx} is enabled by default when using @option{-march=z13}.
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@item -mzvector
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@itemx -mno-zvector
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@opindex mzvector
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@opindex mno-zvector
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The @option{-mzvector} option enables vector language extensions and
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builtins using instructions available with the vector extension
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facility introduced with the IBM z13 machine generation.
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This option adds support for @samp{vector} to be used as a keyword to
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define vector type variables and arguments. @samp{vector} is only
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available when GNU extensions are enabled. It will not be expanded
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when requesting strict standard compliance e.g. with @option{-std=c99}.
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In addition to the GCC low-level builtins @option{-mzvector} enables
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a set of builtins added for compatibility with Altivec-style
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implementations like Power and Cell. In order to make use of these
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builtins the header file @file{vecintrin.h} needs to be included.
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@option{-mzvector} is disabled by default.
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@item -mmvcle
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@itemx -mno-mvcle
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@opindex mmvcle
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