[GHC] #8256: adding locality levels to prefetch# and friends

[GHC]

#8256: adding locality levels to prefetch# and friends
-------------------------------------+------------------------------------
        Reporter:  carter            |            Owner:  carter
            Type:  task              |           Status:  patch
        Priority:  normal            |        Milestone:  7.8.1
       Component:  Compiler          |          Version:  7.7
      Resolution:                    |         Keywords:
Operating System:  Unknown/Multiple  |     Architecture:  Unknown/Multiple
 Type of failure:  None/Unknown      |       Difficulty:  Unknown
       Test Case:                    |       Blocked By:
        Blocking:                    |  Related Tickets:  #8252 ,#8107
-------------------------------------+------------------------------------

Comment (by carter):

 I had a funny problem with validate
 {{{
 == Start post-build package check
 Timestamp 2013-09-19 17:26:28 UTC for
 /Users/carter/Desktop/repoScratcher/ghc/inplace/lib/package.conf.d/package.cache
 Timestamp 2013-09-19 17:26:28 UTC for
 /Users/carter/Desktop/repoScratcher/ghc/inplace/lib/package.conf.d (same
 as cache)
 using cache:
 /Users/carter/Desktop/repoScratcher/ghc/inplace/lib/package.conf.d/package.cache
 == End post-build package check
 rm -f bindist-list
 make -r --no-print-directory -f ghc.mk bindist BINDIST=YES
 "cp" -p ghc/stage1/build/tmp/ inplace/lib/bin/ghc-stage1
 cp: ghc/stage1/build/tmp/ is a directory (not copied).
 make[1]: *** [inplace/lib/bin/ghc-stage1] Error 1
 make: *** [binary-dist-prep] Error 2

 }}}

 but the teste suite seems to have run fine when i subsequently did a make
 test

 {{{
 Unexpected results from:
 TEST="T5313 static001 T1969 T4801"

 OVERALL SUMMARY for test run started at Thu Sep 19 14:00:24 EDT 2013
     3778 total tests, which gave rise to
    14853 test cases, of which
    11416 were skipped

       28 had missing libraries
     3344 expected passes
       61 expected failures

        0 caused framework failures
        1 unexpected passes
        3 unexpected failures

 Unexpected passes:
    driver  T5313 (normal)

 Unexpected failures:
    driver         static001 [bad stderr] (normal)
    perf/compiler  T1969 [stat not good enough] (normal)
    perf/compiler  T4801 [stat too good] (normal)
 }}}

 I will upload the current ghc patch  shortly. (same testsuite patch as
 before).

 will just clean up the documentation a bit.

 Note also that for now i've given all the prefetch  primops a
 can_fail=True attribute, but it could be argued just as well that they
 should have no such attribute, or the has_side_effects=True attribute. I'm
 unsure whats the right story there.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8256#comment:22>
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