https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98540
--- Comment #2 from Martin Liška <marxin at gcc dot gnu.org> --- Created attachment 49894 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=49894&action=edit Reduced test-case Started with r7-6939-g853ef4e5632df328 and it was rejected before: $ g++ lambda.cpp -O3 -Wall -flto -c -std=c++17 lambda.cpp: In function ‘void iterateMatchesFullSimd()’: lambda.cpp:254:9: warning: typedef ‘using TBlastRecord = int’ locally defined but not used [-Wunused-local-typedefs] 254 | using TBlastRecord = int; | ^~~~~~~~~~~~ lambda.cpp: At global scope: lambda.cpp:258:1: error: type variant with ‘TYPE_ALIAS_SET_KNOWN_P’ 258 | } | ^ <vector_type 0x7ffff755ba80 type <integer_type 0x7ffff7415498 short int public type_6 HI size <integer_cst 0x7ffff7418078 constant 16> unit-size <integer_cst 0x7ffff7418090 constant 2> align:16 warn_if_not_align:0 symtab:0 alias-set 2 canonical-type 0x7ffff7415498 precision:16 min <integer_cst 0x7ffff7418018 -32768> max <integer_cst 0x7ffff7418048 32767>> sizes-gimplified type_6 HI size <integer_cst 0x7ffff7418078 16> unit-size <integer_cst 0x7ffff7418090 2> align:16 warn_if_not_align:0 symtab:0 alias-set 2 canonical-type 0x7ffff755ba80 nunits:1> <vector_type 0x7ffff75f0930 type <integer_type 0x7ffff7415498 short int public type_6 HI size <integer_cst 0x7ffff7418078 constant 16> unit-size <integer_cst 0x7ffff7418090 constant 2> align:16 warn_if_not_align:0 symtab:0 alias-set 2 canonical-type 0x7ffff7415498 precision:16 min <integer_cst 0x7ffff7418018 -32768> max <integer_cst 0x7ffff7418048 32767>> sizes-gimplified type_6 HI size <integer_cst 0x7ffff7418078 16> unit-size <integer_cst 0x7ffff7418090 2> align:16 warn_if_not_align:0 symtab:0 alias-set 2 canonical-type 0x7ffff755ba80 nunits:1> during IPA pass: *free_lang_data lambda.cpp:258:1: internal compiler error: ‘verify_type’ failed 0x139f4d0 verify_type(tree_node const*) /home/marxin/Programming/gcc/gcc/tree.c:14906 0x13a2407 free_lang_data /home/marxin/Programming/gcc/gcc/tree.c:6436 0x13a2407 execute /home/marxin/Programming/gcc/gcc/tree.c:6481 Please submit a full bug report, with preprocessed source if appropriate. Please include the complete backtrace with any bug report. See <https://gcc.gnu.org/bugs/> for instructions.
