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updated manual page

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ceriel 1991-11-20 16:45:25 +00:00
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util/opt/em_opt.6
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@ -4,8 +4,8 @@
.SH NAME .SH NAME
em_opt \- EM peephole optimizer em_opt \- EM peephole optimizer
.SH SYNOPSIS .SH SYNOPSIS
.B ~em/lib/em_opt .B ~em/lib.bin/em_opt
[-Ln] [ argument ] [-Ln] [-m[l]<num>] [ argument ]
.SH DESCRIPTION .SH DESCRIPTION
Em_opt reads a compact EM-program, argument or standard input, Em_opt reads a compact EM-program, argument or standard input,
and produces another compact EM program on standard output and produces another compact EM program on standard output
@ -23,10 +23,16 @@ the names of all exported entities in this module.
Do not optimize. Do not optimize.
No peephole optimizations will be performed, No peephole optimizations will be performed,
other functions will be carried out. other functions will be carried out.
.IP -m<num>
Try to replace multiplies with constants by combinations of shifts and adds,
but no more than <num> of them. Integer overflow detection is lost with this
option.
.IP -ml<num>
Like -m<num>, but also for long multiplies.
.SH "FILES" .SH "FILES"
/usr/tmp/emopt??????, is used when the -L flag is given only. /usr/tmp/emopt??????, is used when the -L flag is given only.
.SH "SEE ALSO" .SH "SEE ALSO"
ack(I) ack(1)
.PD 0 .PD 0
.IP [1] .IP [1]
A.S. Tanenbaum, Hans van Staveren, Ed Keizer and Johan A.S. Tanenbaum, Hans van Staveren, Ed Keizer and Johan