https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65491
Bug ID: 65491 Summary: [aarch64] ICE: in emit_move_insn, at expr.c:3609 Product: gcc Version: 5.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: target Assignee: unassigned at gcc dot gnu.org Reporter: david.abdurachmanov at gmail dot com Storing a single long double in a vector will cause GCC 4.9.2 and GCC 5.0.0 to ICE on AArch64: typedef long double a __attribute__((vector_size (16))); a sum(a first, a second) { return first + second; } a.c:3:3: internal compiler error: in emit_move_insn, at expr.c:3609 a sum(a first, a second) { ^ Please submit a full bug report, with preprocessed source if appropriate. On GCC 5.0.0 (F22) it reports expr.c:3601 Any other argument for vector_size seems to work just fine. Tested up to 2048.