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* target/6500: Sparc.md's prefetch is buggy
@ 2002-04-28  5:36 davem
  0 siblings, 0 replies; 2+ messages in thread
From: davem @ 2002-04-28  5:36 UTC (permalink / raw)
  To: gcc-gnats


>Number:         6500
>Category:       target
>Synopsis:       Sparc.md's prefetch is buggy
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sun Apr 28 05:36:00 PDT 2002
>Closed-Date:
>Last-Modified:
>Originator:     davem@redhat.com
>Release:        GCC cvs 3.1
>Organization:
>Environment:
sparc*-*
>Description:
The prefetch instruction case used in sparc.md
for locality==3 is wrong, prefetch page does something
totally different from the other prefetch types.
It prefetches TLB translations, it doesn't bring
any data into the data caches of the processor.
>How-To-Repeat:

>Fix:
Change locality==3 case in sparc.md's prefetch instruction
to use prefetch function 0 for reads and 2 for writes.
>Release-Note:
>Audit-Trail:
>Unformatted:


^ permalink raw reply	[flat|nested] 2+ messages in thread
* Re: target/6500: Sparc.md's prefetch is buggy
@ 2002-04-28 22:37 davem
  0 siblings, 0 replies; 2+ messages in thread
From: davem @ 2002-04-28 22:37 UTC (permalink / raw)
  To: davem, gcc-bugs, gcc-prs, nobody

Synopsis: Sparc.md's prefetch is buggy

State-Changed-From-To: open->closed
State-Changed-By: davem
State-Changed-When: Sun Apr 28 22:37:09 2002
State-Changed-Why:
    Fixed by:
    http://gcc.gnu.org/ml/gcc-patches/2002-04/msg01717.html

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=6500


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