[GHC] #9406: unexpected failure for T7837(profasm)

[GHC]

#9406: unexpected failure for T7837(profasm)
-------------------------------------+-------------------------------------
              Reporter:  jrp         |            Owner:
                  Type:  bug         |           Status:  new
              Priority:  low         |        Milestone:
             Component:  Test Suite  |          Version:  7.8.3
            Resolution:              |         Keywords:  T7837
      Operating System:  MacOS X     |     Architecture:  x86_64 (amd64)
       Type of failure:  Incorrect   |       Difficulty:  Unknown
  result at runtime                  |       Blocked By:
             Test Case:  T7837       |  Related Tickets:
              Blocking:              |
Differential Revisions:              |
-------------------------------------+-------------------------------------
Description changed by jrp:

Old description:

> This may be a test suite configuration error as the normal case works.
> When run with an llvm-perf build of the HEAD, I get:
>
> {{{
> =====> T7837(normal) 1395 of 4068 [0, 0, 0]
> cd ./indexed-types/should_compile &&
> '/Users/jrp/Projects/haskell/ghc/inplace/bin/ghc-stage2' -fforce-recomp
> -dcore-lint -dcmm-lint -dno-debug-output -no-user-package-db -rtsopts
> -fno-ghci-history -c T7837.hs  -O -ddump-rule-firings  >T7837.comp.stderr
> 2>&1
> =====> T7837(profasm) 1395 of 4068 [0, 0, 0]
> cd ./indexed-types/should_compile &&
> '/Users/jrp/Projects/haskell/ghc/inplace/bin/ghc-stage2' -fforce-recomp
> -dcore-lint -dcmm-lint -dno-debug-output -no-user-package-db -rtsopts
> -fno-ghci-history -c T7837.hs -O -prof -static -auto-all -O -ddump-rule-
> firings  >T7837.comp.stderr 2>&1
> Actual stderr output differs from expected:
> --- ./indexed-types/should_compile/T7837.stderr 2014-08-03
> 11:36:53.000000000 +0100
> +++ ./indexed-types/should_compile/T7837.comp.stderr    2014-08-04
> 23:16:34.000000000 +0100
> @@ -1,3 +1,4 @@
>  Rule fired: Class op abs
>  Rule fired: Class op signum
>  Rule fired: normalize/Double
> +Rule fired: Class op /
> *** unexpected failure for T7837(profasm)
>
> Unexpected results from:
> TEST="T7837"
>
> OVERALL SUMMARY for test run started at Mon Aug  4 23:16:32 2014 BST
>  0:00:02 spent to go through
>     4068 total tests, which gave rise to
>    19536 test cases, of which
>    19534 were skipped
>
>        0 had missing libraries
>        1 expected passes
>        0 expected failures
>
>        0 caused framework failures
>        0 unexpected passes
>        1 unexpected failures
>
> Unexpected failures:
>    indexed-types/should_compile  T7837 [stderr mismatch] (profasm)
> }}}

New description:

 This may be a test suite configuration error as the normal case works (and
 indeed I get a lot of profiled case failures of other cases).  When run
 with an llvm-perf build of the HEAD, I get:

 {{{
 =====> T7837(normal) 1395 of 4068 [0, 0, 0]
 cd ./indexed-types/should_compile &&
 '/Users/jrp/Projects/haskell/ghc/inplace/bin/ghc-stage2' -fforce-recomp
 -dcore-lint -dcmm-lint -dno-debug-output -no-user-package-db -rtsopts
 -fno-ghci-history -c T7837.hs  -O -ddump-rule-firings  >T7837.comp.stderr
 2>&1
 =====> T7837(profasm) 1395 of 4068 [0, 0, 0]
 cd ./indexed-types/should_compile &&
 '/Users/jrp/Projects/haskell/ghc/inplace/bin/ghc-stage2' -fforce-recomp
 -dcore-lint -dcmm-lint -dno-debug-output -no-user-package-db -rtsopts
 -fno-ghci-history -c T7837.hs -O -prof -static -auto-all -O -ddump-rule-
 firings  >T7837.comp.stderr 2>&1
 Actual stderr output differs from expected:
 --- ./indexed-types/should_compile/T7837.stderr 2014-08-03
 11:36:53.000000000 +0100
 +++ ./indexed-types/should_compile/T7837.comp.stderr    2014-08-04
 23:16:34.000000000 +0100
 @@ -1,3 +1,4 @@
  Rule fired: Class op abs
  Rule fired: Class op signum
  Rule fired: normalize/Double
 +Rule fired: Class op /
 *** unexpected failure for T7837(profasm)

 Unexpected results from:
 TEST="T7837"

 OVERALL SUMMARY for test run started at Mon Aug  4 23:16:32 2014 BST
  0:00:02 spent to go through
     4068 total tests, which gave rise to
    19536 test cases, of which
    19534 were skipped

        0 had missing libraries
        1 expected passes
        0 expected failures

        0 caused framework failures
        0 unexpected passes
        1 unexpected failures

 Unexpected failures:
    indexed-types/should_compile  T7837 [stderr mismatch] (profasm)
 }}}

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9406#comment:1>
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