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Document -Os optimization. Add to -O{0,2} documentation.

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Obtained from:	invoke.texi
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obrien 1999-09-19 08:58:44 +00:00
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commit 5d5529bc55
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8
contrib/gcc/gcc.1
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@ -265,6 +265,8 @@ in the following sections.
\-O
\-O2
\-O3
\-O0
\-Os
.TP
.B Preprocessor Options
.RI \-A assertion
@ -2459,6 +2461,12 @@ Optimize yet more. This turns on everything
does, along with also turning on
.B \-finline\-functions.
.TP
.B \-Os
Optimize for size. This enables all
.B \-O2
optimizations that do not typically increase code size. It also performs
further optimizations designed to reduce code size.
.TP
.B \-O0
Do not optimize.
.Sp