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rtl.texi: Document zero_extract as a valid destination of a set insn.

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* doc/rtl.texi: Document zero_extract as a valid destination
	of a set insn.

From-SVN: r66716
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Roger Sayle 2003-05-12 13:26:02 +00:00 • committed by Roger Sayle
parent ce250a2071
commit 70498da397
2 changed files with 12 additions and 7 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2003-05-12 Roger Sayle <roger@eyesopen.com>
* doc/rtl.texi: Document zero_extract as a valid destination
of a set insn.
2003-05-12 Richard Earnshaw <rearnsha@arm.com>
* arm/lib1funcs.asm (LSYM): Define -- on ELF prefix a local symbol with

14
gcc/doc/rtl.texi
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@ -2368,9 +2368,9 @@ the operands of these.
@item (set @var{lval} @var{x})
Represents the action of storing the value of @var{x} into the place
represented by @var{lval}. @var{lval} must be an expression
representing a place that can be stored in: @code{reg} (or @code{subreg}
or @code{strict_low_part}), @code{mem}, @code{pc}, @code{parallel}, or
@code{cc0}.
representing a place that can be stored in: @code{reg} (or @code{subreg},
@code{strict_low_part} or @code{zero_extract}), @code{mem}, @code{pc},
@code{parallel}, or @code{cc0}.
If @var{lval} is a @code{reg}, @code{subreg} or @code{mem}, it has a
machine mode; then @var{x} must be valid for that mode.
@ -2383,10 +2383,10 @@ rest of the register receives an undefined value. Likewise, if
the mode of the register, the rest of the register can be changed in
an undefined way.
If @var{lval} is a @code{strict_low_part} of a @code{subreg}, then the
part of the register specified by the machine mode of the
@code{subreg} is given the value @var{x} and the rest of the register
is not changed.
If @var{lval} is a @code{strict_low_part} or @code{zero_extract}
of a @code{subreg}, then the part of the register specified by the
machine mode of the @code{subreg} is given the value @var{x} and
the rest of the register is not changed.
If @var{lval} is @code{(cc0)}, it has no machine mode, and @var{x} may
be either a @code{compare} expression or a value that may have any mode.