* [PATCH doc] Remove documentation for PowerPC -maltivec={be,le}
@ 2019-02-12 18:16 Pat Haugen
2019-02-12 20:07 ` Segher Boessenkool
0 siblings, 1 reply; 2+ messages in thread
From: Pat Haugen @ 2019-02-12 18:16 UTC (permalink / raw)
To: GCC Patches; +Cc: Segher Boessenkool, David Edelsohn, Bill Schmidt
The options were removed in May 2018 (r260109), but documentation was not updated.
Bootstrap on powerpc64le. Ok for trunk?
-Pat
2019-02-12 Pat Haugen <pthaugen@us.ibm.com>
* doc/invoke.texi (RS/6000 and PowerPC Options): Remove duplicate
-maltivec. Delete -maltivec=be and -maltivec=le documentation.
Index: gcc/doc/invoke.texi
===================================================================
--- gcc/doc/invoke.texi (revision 268784)
+++ gcc/doc/invoke.texi (working copy)
@@ -1085,7 +1085,7 @@ See RS/6000 and PowerPC Options.
-mstrict-align -mno-strict-align -mrelocatable @gol
-mno-relocatable -mrelocatable-lib -mno-relocatable-lib @gol
-mtoc -mno-toc -mlittle -mlittle-endian -mbig -mbig-endian @gol
--mdynamic-no-pic -maltivec -mswdiv -msingle-pic-base @gol
+-mdynamic-no-pic -mswdiv -msingle-pic-base @gol
-mprioritize-restricted-insns=@var{priority} @gol
-msched-costly-dep=@var{dependence_type} @gol
-minsert-sched-nops=@var{scheme} @gol
@@ -24088,40 +24088,14 @@ the AltiVec instruction set. You may al
@option{-mabi=altivec} to adjust the current ABI with AltiVec ABI
enhancements.
-When @option{-maltivec} is used, rather than @option{-maltivec=le} or
-@option{-maltivec=be}, the element order for AltiVec intrinsics such
-as @code{vec_splat}, @code{vec_extract}, and @code{vec_insert}
+When @option{-maltivec} is used, the element order for AltiVec intrinsics
+such as @code{vec_splat}, @code{vec_extract}, and @code{vec_insert}
match array element order corresponding to the endianness of the
target. That is, element zero identifies the leftmost element in a
vector register when targeting a big-endian platform, and identifies
the rightmost element in a vector register when targeting a
little-endian platform.
-@item -maltivec=be
-@opindex maltivec=be
-Generate AltiVec instructions using big-endian element order,
-regardless of whether the target is big- or little-endian. This is
-the default when targeting a big-endian platform. Using this option
-is currently deprecated. Support for this feature will be removed in
-GCC 9.
-
-The element order is used to interpret element numbers in AltiVec
-intrinsics such as @code{vec_splat}, @code{vec_extract}, and
-@code{vec_insert}. By default, these match array element order
-corresponding to the endianness for the target.
-
-@item -maltivec=le
-@opindex maltivec=le
-Generate AltiVec instructions using little-endian element order,
-regardless of whether the target is big- or little-endian. This is
-the default when targeting a little-endian platform. This option is
-currently ignored when targeting a big-endian platform.
-
-The element order is used to interpret element numbers in AltiVec
-intrinsics such as @code{vec_splat}, @code{vec_extract}, and
-@code{vec_insert}. By default, these match array element order
-corresponding to the endianness for the target.
-
@item -mvrsave
@itemx -mno-vrsave
@opindex mvrsave
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [PATCH doc] Remove documentation for PowerPC -maltivec={be,le}
2019-02-12 18:16 [PATCH doc] Remove documentation for PowerPC -maltivec={be,le} Pat Haugen
@ 2019-02-12 20:07 ` Segher Boessenkool
0 siblings, 0 replies; 2+ messages in thread
From: Segher Boessenkool @ 2019-02-12 20:07 UTC (permalink / raw)
To: Pat Haugen; +Cc: GCC Patches, David Edelsohn, Bill Schmidt
Hi Pat,
On Tue, Feb 12, 2019 at 12:15:56PM -0600, Pat Haugen wrote:
> The options were removed in May 2018 (r260109), but documentation was not updated.
> 2019-02-12 Pat Haugen <pthaugen@us.ibm.com>
>
> * doc/invoke.texi (RS/6000 and PowerPC Options): Remove duplicate
> -maltivec. Delete -maltivec=be and -maltivec=le documentation.
Yes please. Thanks!
Segher
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