invoke.texi (ARC Options): Use CPU instead of cpu.
* doc/invoke.texi (ARC Options): Use CPU instead of cpu. (ARM Options): Ditto. (i386 and x86-64 Options): Ditto. (RX Options): Ditto. (SPARC Options): Ditto. From-SVN: r170528
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2011-02-26 Gerald Pfeifer <gerald@pfeifer.com>
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* doc/invoke.texi (ARC Options): Use CPU instead of cpu.
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(ARM Options): Ditto.
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(i386 and x86-64 Options): Ditto.
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(RX Options): Ditto.
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(SPARC Options): Ditto.
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2011-02-26 Tijl Coosemans <tijl@coosemans.org>
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* config.gcc (i386-*-freebsd*): Make i486 the default arch on
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@ -10019,10 +10019,10 @@ Compile code for big endian mode.
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@item -mmangle-cpu
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@opindex mmangle-cpu
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Prepend the name of the cpu to all public symbol names.
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Prepend the name of the CPU to all public symbol names.
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In multiple-processor systems, there are many ARC variants with different
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instruction and register set characteristics. This flag prevents code
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compiled for one cpu to be linked with code compiled for another.
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compiled for one CPU to be linked with code compiled for another.
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No facility exists for handling variants that are ``almost identical''.
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This is an all or nothing option.
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@ -10195,7 +10195,7 @@ instead of specifying the actual target processor type, and hence
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restricting which instructions can be used, it specifies that GCC should
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tune the performance of the code as if the target were of the type
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specified in this option, but still choosing the instructions that it
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will generate based on the cpu specified by a @option{-mcpu=} option.
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will generate based on the CPU specified by a @option{-mcpu=} option.
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For some ARM implementations better performance can be obtained by using
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this option.
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@ -12298,7 +12298,7 @@ Some 387 emulators do not support the @code{sin}, @code{cos} and
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@code{sqrt} instructions for the 387. Specify this option to avoid
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generating those instructions. This option is the default on FreeBSD,
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OpenBSD and NetBSD@. This option is overridden when @option{-march}
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indicates that the target cpu will always have an FPU and so the
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indicates that the target CPU will always have an FPU and so the
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instruction will not need emulation. As of revision 2.6.1, these
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instructions are not generated unless you also use the
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@option{-funsafe-math-optimizations} switch.
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@ -16245,7 +16245,7 @@ This is because the RX FPU instructions are themselves unsafe.
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@opindex -mcpu
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Selects the type of RX CPU to be targeted. Currently three types are
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supported, the generic @var{RX600} and @var{RX200} series hardware and
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the specific @var{RX610} cpu. The default is @var{RX600}.
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the specific @var{RX610} CPU. The default is @var{RX600}.
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The only difference between @var{RX600} and @var{RX610} is that the
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@var{RX610} does not support the @code{MVTIPL} instruction.
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@ -17098,7 +17098,7 @@ option @option{-mcpu=@var{cpu_type}} would.
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The same values for @option{-mcpu=@var{cpu_type}} can be used for
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@option{-mtune=@var{cpu_type}}, but the only useful values are those
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that select a particular cpu implementation. Those are @samp{cypress},
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that select a particular CPU implementation. Those are @samp{cypress},
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@samp{supersparc}, @samp{hypersparc}, @samp{leon}, @samp{f930}, @samp{f934},
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@samp{sparclite86x}, @samp{tsc701}, @samp{ultrasparc}, @samp{ultrasparc3},
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@samp{niagara}, and @samp{niagara2}.
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