https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103038
Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Assignee|unassigned at gcc dot gnu.org |rguenth at gcc dot gnu.org Target Milestone|12.0 |--- Status|NEW |ASSIGNED --- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> --- #3 0x000000000140112e in expand_DEFERRED_INIT (stmt=0x7ffff65728e8) at /home/rguenther/src/gcc3/gcc/internal-fn.c:3101 3101 expand_assignment (lhs, init, false); (gdb) p lhs $3 = <view_convert_expr 0x7ffff66a49a0> (gdb) p debug_generic_expr ($3) VIEW_CONVERT_EXPR<unsigned long>(PtrMem_1) (gdb) p debug_tree ($3) <view_convert_expr 0x7ffff66a49a0 type <integer_type 0x7ffff656b1f8 public unsigned DI size <integer_cst 0x7ffff6543f30 constant 64> unit-size <integer_cst 0x7ffff6543f48 constant 8> align:64 warn_if_not_align:0 symtab:0 alias-set -1 canonical-type 0x7ffff656b1f8 precision:64 min <integer_cst 0x7ffff6565360 0> max <integer_cst 0x7ffff65446a0 18446744073709551615>> arg:0 <ssa_name 0x7ffff654ee58 type <offset_type 0x7ffff66acc78 type <integer_type 0x7ffff65635e8 int> sizes-gimplified DI size <integer_cst 0x7ffff6543f30 64> unit-size <integer_cst 0x7ffff6543f48 8> align:64 warn_if_not_align:0 symtab:0 alias-set 1 canonical-type 0x7ffff66acc78 basetype <record_type 0x7ffff66acb28 S>> var <var_decl 0x7ffff7ff5cf0 PtrMem> def_stmt PtrMem_1 = .DEFERRED_INIT (8, 1, 0); version:1>> and we ended up putting the LHS to the stack. We have to avoid using a V_C_E on a SSA name on the LHS.