Aaaargh! Once again the Windows build is broken. I am utterly stalled. Moreover -fregs-graph and -fregs-iterative now *silently* do nothing. At least they should elicit warnings saying that they are disabled pending the fix to X and Y.
Please can someone bisect to find out which patch is the culprit? I wish we had a more systematic way to find this out. I hate being the main person who gets stuck because some unrelated change has broken the Windows build. (Thanks for Karel, who got to it a day before me.) Thanks Simon | -----Original Message----- | From: ghc-devs [mailto:ghc-devs-boun...@haskell.org] On Behalf Of Karel | Gardas | Sent: 26 June 2014 09:56 | To: ghc-devs; Johan Tibell | Subject: Two days old build breakage on i386. | | | Hello, | | builders running on i386 building for this platform caught issue which | shows as a build breakage: | | ghc-stage1: panic! (the 'impossible' happened) | (GHC version 7.9.20140624 for i386-unknown-linux): | RegAllocLinear.allocRegsAndSpill: no spill candidates | allocating vreg: VirtualRegI n1Q6 | assignment: [(c1PV,InMem 2),(n1Q5,InBoth (RealRegSingle 3) | 0),(n1Q6,InMem 1),(n1Q7,InMem 3),(n1Q9,InReg (RealRegSingle 2))] | freeRegs: FreeRegs 4282318848 | initFreeRegs: FreeRegs 4282318861 | Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug | make[1]: *** | [libraries/ghc-prim/dist-install/build/GHC/PrimopWrappers.o] Error 1 | libraries/ghc-prim/ghc.mk:4: recipe for target | 'libraries/ghc-prim/dist-install/build/GHC/PrimopWrappers.o' failed | | Have a look for example on linux-i386 buildot log here: | http://haskell.inf.elte.hu/builders/validator1-linux-x86-head/18/7.html | | Anyway, this happens on Linux, FreeBSD and Solaris buildbots on i386 so | it's OS independent and probably 32bit/i386 platform specific and it's | two days old breakage now. The last two night builds fail on all | mentioned buildbots. I'm not sure but perhaps: | | commit d8abf85f8ca176854e9d5d0b12371c4bc402aac3 | Author: Johan Tibell <johan.tib...@gmail.com> | Date: Mon Jun 9 11:43:21 2014 +0200 | | triggers that issue? I'm not claiming that the commit is actual culprit, | this may be just recently un-hidden issue in linear regs allocator on | i386! | | Thanks! | Karel | _______________________________________________ | ghc-devs mailing list | ghc-devs@haskell.org | http://www.haskell.org/mailman/listinfo/ghc-devs _______________________________________________ ghc-devs mailing list ghc-devs@haskell.org http://www.haskell.org/mailman/listinfo/ghc-devs
