#9856: Test suite regressions due to integer-gmp2 -------------------------------------+------------------------------------- Reporter: nomeata | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.9 Keywords: | Operating System: Architecture: Unknown/Multiple | Unknown/Multiple Difficulty: Unknown | Type of failure: Blocked By: | None/Unknown Related Tickets: | Test Case: prof-doc- | fib linker_unload | Blocking: | Differential Revisions: Phab:D82 -------------------------------------+------------------------------------- According to my performance builders, changeset:c774b28/ghc (Phab:D82) caused prof-doc-fib and linker_unload to fail on both performance builders (Ubuntu 13.10 and Ubuntu 14.04): {{{ Wrong exit code (expected 0 , actual 2 ) Stdout: Stderr: linker_unload: /home/nomeata/logs/ghc-tmp-REV/libraries/integer-gmp2/dist- install/build/libHSinteg_21cuTlnn00eFNd4GMrxOMi.a: unknown symbol `__gmpn_rshift' linker_unload: resolveObjs failed make[3]: *** [linker_unload] Error 1 *** unexpected failure for linker_unload(normal) }}} and {{{ Actual prof output differs from expected: --- ./profiling/should_run/prof-doc-fib.prof.sample 2014-12-01 15:30:19.000000000 +0100 +++ ./profiling/should_run/prof-doc-fib.prof 2014-12-01 15:56:08.000000000 +0100 @@ -1,9 +1,9 @@ - Thu Oct 27 09:29 2011 Time and Allocation Profiling Report (Final) + Mon Dec 1 15:56 2014 Time and Allocation Profiling Report (Final) - fib +RTS -p -RTS + prof-doc-fib +RTS -hc -p -RTS - total time = 0.76 secs (38 ticks @ 20 ms) - total alloc = 247,940,020 bytes (excludes profiling overheads) + total time = 0.14 secs (135 ticks @ 1000 us, 1 processor) + total alloc = 107,829,304 bytes (excludes profiling overheads) COST CENTRE MODULE %time %alloc @@ -13,13 +13,16 @@ individual inherited COST CENTRE MODULE no. entries %time %alloc %time %alloc -MAIN MAIN 102 0 0.0 0.0 100.0 100.0 - CAF Main 203 0 0.0 0.0 100.0 100.0 - main Main 204 1 0.0 0.0 100.0 100.0 - main.g Main 207 1 0.0 0.0 0.0 0.1 - fib Main 208 1973 0.0 0.1 0.0 0.1 - main.f Main 205 1 0.0 0.0 100.0 99.9 - fib Main 206 2692537 100.0 99.9 100.0 99.9 - CAF GHC.Conc.Signal 201 0 0.0 0.0 0.0 0.0 - CAF GHC.IO.Encoding.Iconv 191 0 0.0 0.0 0.0 0.0 - CAF GHC.IO.Handle.FD 183 0 0.0 0.0 0.0 0.0 +MAIN MAIN 45 0 0.0 0.0 100.0 100.0 + main Main 91 0 0.0 0.0 0.0 0.0 + CAF Main 89 0 0.0 0.0 100.0 100.0 + main Main 90 1 0.0 0.0 100.0 100.0 + main.f Main 94 1 0.0 0.0 100.0 99.9 + fib Main 95 2692537 100.0 99.9 100.0 99.9 + main.g Main 92 1 0.0 0.0 0.0 0.1 + fib Main 93 1973 0.0 0.1 0.0 0.1 + CAF GHC.IO.Handle.Text 86 0 0.0 0.0 0.0 0.0 + CAF GHC.IO.Handle.FD 82 0 0.0 0.0 0.0 0.0 + CAF GHC.Conc.Signal 78 0 0.0 0.0 0.0 0.0 + CAF GHC.IO.Encoding 76 0 0.0 0.0 0.0 0.0 + CAF GHC.IO.Encoding.Iconv 75 0 0.0 0.0 0.0 0.0 *** unexpected failure for prof-doc-fib(profasm) }}} The former is also observed by SPJ. The latter actually looks less like a regression, and more an improvement – maybe Herbert simply did not run a profiled version when updating test results? -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9856 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler