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md.texi (fma): Define to only be applicable for single rounding. 

2012-05-15  Kenneth Zadeck  <zadeck@naturalbridge.com>

	* doc/md.texi (fma): Define to only be applicable for single
	rounding.

From-SVN: r187494
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Kenneth Zadeck 2012-05-15 01:18:22 +00:00 committed by Kenneth Zadeck
parent 45f3cc2d83
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2 changed files with 9 additions and 6 deletions
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@ -1,3 +1,8 @@
2012-05-15 Kenneth Zadeck <zadeck@naturalbridge.com>
* doc/md.texi (fma): Define to only be applicable for single
rounding.
2012-05-14 Uros Bizjak <ubizjak@gmail.com> 2012-05-14 Uros Bizjak <ubizjak@gmail.com>
PR target/46098 PR target/46098

10
gcc/doc/md.texi
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@ -4417,12 +4417,10 @@ Similar, for other arithmetic operations.
@cindex @code{fma@var{m}4} instruction pattern @cindex @code{fma@var{m}4} instruction pattern
@item @samp{fma@var{m}4} @item @samp{fma@var{m}4}
Multiply operand 2 and operand 1, then add operand 3, storing the Multiply operand 2 and operand 1, then add operand 3, storing the
result in operand 0. All operands must have mode @var{m}. This result in operand 0 without doing an intermediate rounding step. All
pattern is used to implement the @code{fma}, @code{fmaf}, and operands must have mode @var{m}. This pattern is used to implement
@code{fmal} builtin functions from the ISO C99 standard. The the @code{fma}, @code{fmaf}, and @code{fmal} builtin functions from
@code{fma} operation may produce different results than doing the the ISO C99 standard.
multiply followed by the add if the machine does not perform a
rounding step between the operations.
@cindex @code{fms@var{m}4} instruction pattern @cindex @code{fms@var{m}4} instruction pattern
@item @samp{fms@var{m}4} @item @samp{fms@var{m}4}