optimization/3700: ISSUE_RATE not defined for mips target

[athena@fftw.org]

>Number:         3700
>Category:       optimization
>Synopsis:       ISSUE_RATE not defined for mips target
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          pessimizes-code
>Submitter-Id:   net
>Arrival-Date:   Mon Jul 16 10:16:01 PDT 2001
>Closed-Date:
>Last-Modified:
>Originator:     Matteo Frigo
>Release:        gcc-3.0
>Organization:
>Environment:
IRIX64 fp98 6.5 04131233 IP27
>Description:
The ISSUE_RATE macro is not defined in gcc/config/mips/mips.h
As a consequence, the haifa scheduler assumes ISSUE_RATE = 1
and produces a totally wrong schedule.
>How-To-Repeat:

>Fix:
#define ISSUE_RATE 4
(or whatever makes sense on each target)
>Release-Note:
>Audit-Trail:
>Unformatted: