#7885: LLVM build broken --------------------------------+------------------------------------------- Reporter: gmainland | Owner: Type: bug | Status: new Priority: normal | Component: Compiler (LLVM) Version: 7.7 | Keywords: Os: Linux | Architecture: x86_64 (amd64) Failure: Building GHC failed | Blockedby: Blocking: | Related: --------------------------------+------------------------------------------- Comment(by carter): I reported (possibly the same?) problem a few days ago. [http://hackage.haskell.org/trac/ghc/ticket/7874#comment:5 other ticket] Apparently part of the problem is LLVM 3.2? (at least according to thoughtpolice) -- Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/7885#comment:1 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler

#7885: LLVM build broken --------------------------------+------------------------------------------- Reporter: gmainland | Owner: Type: bug | Status: new Priority: normal | Component: Compiler (LLVM) Version: 7.7 | Keywords: Os: Linux | Architecture: x86_64 (amd64) Failure: Building GHC failed | Blockedby: Blocking: | Related: --------------------------------+------------------------------------------- Comment(by carter): do we know what commits these problems started at? -- Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/7885#comment:3 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler

#7885: LLVM build broken --------------------------------+------------------------------------------- Reporter: gmainland | Owner: Type: bug | Status: new Priority: normal | Component: Compiler (LLVM) Version: 7.7 | Keywords: Os: Linux | Architecture: x86_64 (amd64) Failure: Building GHC failed | Blockedby: Blocking: | Related: --------------------------------+------------------------------------------- Changes (by carter): * cc: carter.schonwald@… (added) -- Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/7885#comment:5 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler

#7885: LLVM build broken --------------------------------+------------------------------------------- Reporter: gmainland | Owner: Type: bug | Status: new Priority: normal | Component: Compiler (LLVM) Version: 7.7 | Keywords: Os: Linux | Architecture: x86_64 (amd64) Failure: Building GHC failed | Blockedby: Blocking: | Related: #7694, #7874 --------------------------------+------------------------------------------- Comment(by carter): i'll start trying to git bisect to the commit that started it all. Step 1: i'm tracking down a commit state that i can build via llvm using llvm 3.2 and then binary searching forward. -- Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/7885#comment:7 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler

#7885: LLVM build broken --------------------------------+------------------------------------------- Reporter: gmainland | Owner: Type: bug | Status: new Priority: normal | Component: Compiler (LLVM) Version: 7.7 | Keywords: Os: Linux | Architecture: x86_64 (amd64) Failure: Building GHC failed | Blockedby: Blocking: | Related: #7694, #7874 --------------------------------+------------------------------------------- Comment(by carter): OK, so if you checkout GHC code with the hash {{{ be66c4ef548a06a3eecc8e1eee0957884ce6ec98 }}} from april 21st 1230pm by Ian Lynagh, ghc builds via llvm. (yes, llvm 3.2 ). I'll run the test suite on that version to make sure everything is kosher. the make settings I did were as follows (which isn't in the standard sample make file ). Settings done mostly to speed up the build process. I'll check that current HEAD fails with those settings then proceed to start incrementally doing the git bisection process over the next day or so {{{ BuildFlavor = quickest-llvm # -------- A Fast build With LLVM------------------------------------------------------ ifeq "$(BuildFlavour)" "quickest-llvm" SRC_HC_OPTS = -H64m -O0 -fllvm GhcStage1HcOpts = -O -fllvm GhcStage2HcOpts = -O0 -fllvm GhcLibHcOpts = -O0 -fllvm SplitObjs = NO HADDOCK_DOCS = NO BUILD_DOCBOOK_HTML = NO BUILD_DOCBOOK_PS = NO BUILD_DOCBOOK_PDF = NO endif }}} -- Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/7885#comment:9 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler

#7885: LLVM build broken --------------------------------+------------------------------------------- Reporter: gmainland | Owner: Type: bug | Status: new Priority: normal | Component: Compiler (LLVM) Version: 7.7 | Keywords: Os: Linux | Architecture: x86_64 (amd64) Failure: Building GHC failed | Blockedby: Blocking: | Related: #7694, #7874 --------------------------------+------------------------------------------- Comment(by carter): I had no llvm build failures with master HEAD commit {{{ c041b6205936ce32dba0c7a41332650ee6d2daab }}} Here's the test results for make WAY=optllvm {{{ Unexpected results from: TEST="T5313 conc058 conc068 conc065 conc066 conc020 conc035 conc015 conc017 qq008 qq007 space_leak_001" OVERALL SUMMARY for test run started at Sun May 5 22:21:05 EDT 2013 3628 total tests, which gave rise to 14341 test cases, of which 12756 were skipped 23 had missing libraries 1536 expected passes 14 expected failures 0 caused framework failures 1 unexpected passes 11 unexpected failures Unexpected passes: driver T5313 (optllvm) Unexpected failures: concurrent/should_run conc015 [exit code non-0] (optllvm) concurrent/should_run conc017 [exit code non-0] (optllvm) concurrent/should_run conc020 [exit code non-0] (optllvm) concurrent/should_run conc035 [exit code non-0] (optllvm) concurrent/should_run conc058 [exit code non-0] (optllvm) concurrent/should_run conc065 [exit code non-0] (optllvm) concurrent/should_run conc066 [exit code non-0] (optllvm) concurrent/should_run conc068 [exit code non-0] (optllvm) perf/space_leaks space_leak_001 [stat too good] (optllvm) quasiquotation/qq007 qq007 [exit code non-0] (optllvm) quasiquotation/qq008 qq008 [exit code non-0] (optllvm) }}} I'll next try doing a clean build of HEAD with quick-llvm and see if that build fails or not... (because either a commit in the past day or so has fixed things, or the bug comes from the combination of llvm + optimization + the dylinking bits?) As mentioned before, this is all using the llvm 3.2 release on os x, installed via mac homebrew -- Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/7885#comment:11 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler

#7885: LLVM build broken --------------------------------+------------------------------------------- Reporter: gmainland | Owner: Type: bug | Status: new Priority: normal | Component: Compiler (LLVM) Version: 7.7 | Keywords: Os: Linux | Architecture: x86_64 (amd64) Failure: Building GHC failed | Blockedby: Blocking: | Related: #7694, #7874 --------------------------------+------------------------------------------- Comment(by carter): It looks like head builds / bootstraps via llvm fine as long as stage 2 and the libs aren't optimized. When I did the "quick llvm" build against head and the libs as of yesterday, I had the segfault build failure for stage 2 as I reported in the other ticket http://hackage.haskell.org/trac/ghc/ticket/7874. the only difference between that and the sucessful build was that the libraries were build with -O rather than -O0. So it might be a linker related issue that only happens when the llvm build is doing optimization? I'll do a test build at that finger print state in the next day or so after I get some other work done. -- Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/7885#comment:13 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler

#7885: LLVM build broken -------------------------------+-------------------------------------------- Reporter: gmainland | Owner: Type: bug | Status: closed Priority: normal | Component: Compiler (LLVM) Version: 7.7 | Resolution: fixed Keywords: | Os: Linux Architecture: x86_64 (amd64) | Failure: Building GHC failed Blockedby: | Blocking: Related: #7694, #7874 | -------------------------------+-------------------------------------------- Comment(by carter): building quick-llvm crashes hard and early with llvm-head (3.4svn), see http://hackage.haskell.org/trac/ghc/ticket/7996 i'm testing doing a quick-llvm build with llvm-3.2 right now to see how that works out, will report back on that once its done. -- Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/7885#comment:19 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler