#7814: panic in PPC NCG --------------------------------+------------------------------------------- Reporter: heisenbug | Owner: Type: bug | Status: new Priority: normal | Component: Compiler Version: 7.7 | Keywords: Os: Unknown/Multiple | Architecture: powerpc Failure: Building GHC failed | Blockedby: Blocking: | Related: --------------------------------+------------------------------------------- Comment(by heisenbug): Here is the CFG: {{{ ___________ / \ cc -> cl -> cn ===> ce -> co \ cj }}} Strangely on x86 with -fPIC this decomposes to 3 SCCs OTOH on PPC -fPIC only one. But this probably causes the trouble, as the 'ce' label is only invoked via a return, and needs the picBaseReg too (actually 'co' needs it). So this probably the bug. -- Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/7814#comment:6 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler