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[Patch doc] Document _Float16 availability on ARM/AArch64

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gcc/

	* doc/extend.texi (Floating Types): Document availability of
	_Float16 on ARM/AArch64.

From-SVN: r243601
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James Greenhalgh 2016-12-13 10:40:32 +00:00 committed by James Greenhalgh
parent 30fec2f9bf
commit 87d5619ead
2 changed files with 9 additions and 2 deletions
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gcc/ChangeLog
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@ -1,3 +1,8 @@
2016-12-13 James Greenhalgh <james.greenhalgh@arm.com>
* doc/extend.texi (Floating Types): Document availability of
_Float16 on ARM/AArch64.
2016-12-13 Richard Biener <rguenther@suse.de>
PR tree-optimization/78699

6
gcc/doc/extend.texi
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@ -997,8 +997,10 @@ IEEE binary128 format. The @code{_Float64x} type is supported on all
systems where @code{__float128} is supported. The @code{_Float32}
type is supported on all systems supporting IEEE binary32; the
@code{_Float64} and @code{Float32x} types are supported on all systems
supporting IEEE binary64. GCC does not currently support
@code{_Float16} or @code{_Float128x} on any systems.
supporting IEEE binary64. The @code{_Float16} type is supported on AArch64
systems by default, and on ARM systems when the IEEE format for 16-bit
floating-point types is selected with @option{-mfp16-format=ieee}.
GCC does not currently support @code{_Float128x} on any systems.
On the PowerPC, @code{__ibm128} provides access to the IBM extended
double format, and it is intended to be used by the library functions