https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119208
Bug ID: 119208 Summary: internal compiler error: in extract_constrain_insn, at recog.cc:2783 Product: gcc Version: 15.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: rtl-optimization Assignee: unassigned at gcc dot gnu.org Reporter: bic60176 at gmail dot com Target Milestone: --- Created attachment 60703 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=60703&action=edit testcase Compiler Explorer: https://godbolt.org/z/jK1fqs4E3 Console: <source>: In function 'test': <source>:11:1: error: unrecognizable insn: 11 | } | ^ (insn 8 7 9 2 (parallel [ (set (mem/c:SI (plus:DI (reg/f:DI 6 bp) (const_int -4 [0xfffffffffffffffc])) [1 x+0 S4 A32]) (asm_operands:SI ("") ("=g") 0 [ (reg:DI 0 ax [100]) (mem/c:QI (symbol_ref:DI ("s.0") [flags 0x2] <var_decl 0x7b07497cae40 s>) [2 s+0 S1 A8]) ] [ (asm_input:DI ("0b0") <source>:8) (asm_input:QI ("m") <source>:8) ] [] <source>:8)) (set (mem/c:QI (symbol_ref:DI ("s.0") [flags 0x2] <var_decl 0x7b07497cae40 s>) [2 s+0 S1 A8]) (asm_operands:QI ("") ("=m") 1 [ (reg:DI 0 ax [100]) (mem/c:QI (symbol_ref:DI ("s.0") [flags 0x2] <var_decl 0x7b07497cae40 s>) [2 s+0 S1 A8]) ] [ (asm_input:DI ("0b0") <source>:8) (asm_input:QI ("m") <source>:8) ] [] <source>:8)) (clobber (reg:CC 17 flags)) ]) "<source>":8:3 -1 (nil)) during RTL pass: reload <source>:11:1: internal compiler error: in extract_constrain_insn, at recog.cc:2783 0x25f8a85 diagnostic_context::diagnostic_impl(rich_location*, diagnostic_metadata const*, diagnostic_option_id, char const*, __va_list_tag (*) [1], diagnostic_t) ???:0 0x260fa56 internal_error(char const*, ...) ???:0 0x9eaa94 fancy_abort(char const*, int, char const*) ???:0 0x875e99 _fatal_insn(char const*, rtx_def const*, char const*, int, char const*) ???:0 0x875ebb _fatal_insn_not_found(rtx_def const*, char const*, int, char const*) ???:0 0xf3c629 lra(_IO_FILE*, int) ???:0 Please submit a full bug report, with preprocessed source (by using -freport-bug). Please include the complete backtrace with any bug report. See <https://gcc.gnu.org/bugs/> for instructions. Compiler returned: 1