#13617: Segfault when using SSE and R_X86_64_PC32 relocations to .rdata on Windows in GHCi --------------------------------+---------------------------------------- Reporter: RyanGlScott | Owner: Phyx- Type: bug | Status: new Priority: normal | Milestone: Component: GHCi | Version: 8.0.2 Resolution: | Keywords: Operating System: Windows | Architecture: Unknown/Multiple Type of failure: GHCi crash | Test Case: Blocked By: | Blocking: Related Tickets: #7134 | Differential Rev(s): Wiki Page: | --------------------------------+---------------------------------------- Comment (by Phyx-): My initial analysis was wrong, the code isn't expecting a trampoline, it's data not code. It's simply trying to load the loop iteration increment into the SSE registers. {{{ (gdb) x/10x 0xced02b8 0xced02b8: 0x00000001 0x00000001 0x00000001 0x00000001 0xced02c8: 0x3a434347 0x65522820 0x202c3276 0x6c697542 0xced02d8: 0x79622074 0x59534d20 }}} The loop seems to have undergone 4-way vectorization. I'm not certain why this is failing.. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/13617#comment:4 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler