http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46858
Summary: ICE: in cp_lexer_new_from_tokens, at cp/parser.c:464 Product: gcc Version: 4.6.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ AssignedTo: unassig...@gcc.gnu.org ReportedBy: g...@abeckmann.de The following piece of invalid code ICEs in 4.2.x up to 4.6.0 (no older compilers tested): ===== 8< ===== template < class > struct pair { pair < class { insert ( { pair ===== >8 ===== $ g++-trunk -v -c ice-cp_lexer_new_from_tokens.min.ii Using built-in specs. COLLECT_GCC=/opt/software/x86_64/gcc-trunk/bin/g++-trunk COLLECT_LTO_WRAPPER=/opt/software/x86_64/gcc-trunk/libexec/gcc/x86_64-unknown-linux-gnu/4.6.0/lto-wrapper Target: x86_64-unknown-linux-gnu Configured with: ../gcc-trunk/configure --prefix=/opt/software/x86_64/gcc-trunk --program-suffix=-trunk --enable-languages=c,c++ --enable-checking Thread model: posix gcc version 4.6.0 20101207 (experimental) (GCC) COLLECT_GCC_OPTIONS='-v' '-c' '-shared-libgcc' '-mtune=generic' '-march=x86-64' /opt/software/x86_64/gcc-trunk/libexec/gcc/x86_64-unknown-linux-gnu/4.6.0/cc1plus -fpreprocessed ice-cp_lexer_new_from_tokens.min.ii -quiet -dumpbase ice-cp_lexer_new_from_tokens.min.ii -mtune=generic -march=x86-64 -auxbase ice-cp_lexer_new_from_tokens.min -version -o /tmp/ccTNXXhm.s GNU C++ (GCC) version 4.6.0 20101207 (experimental) (x86_64-unknown-linux-gnu) compiled by GNU C version 4.6.0 20101207 (experimental), GMP version 4.3.2, MPFR version 3.0.0-p3, MPC version 0.8.2 GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096 GNU C++ (GCC) version 4.6.0 20101207 (experimental) (x86_64-unknown-linux-gnu) compiled by GNU C version 4.6.0 20101207 (experimental), GMP version 4.3.2, MPFR version 3.0.0-p3, MPC version 0.8.2 GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096 Compiler executable checksum: 58dd45b357216c1e9d23aab2b8f87581 ice-cp_lexer_new_from_tokens.min.ii:11:1: error: expected identifier before ‘{’ token ice-cp_lexer_new_from_tokens.min.ii:11:1: error: expected ‘)’ before ‘{’ token ice-cp_lexer_new_from_tokens.min.ii:11:1: error: ISO C++ forbids declaration of ‘insert’ with no type [-fpermissive] ice-cp_lexer_new_from_tokens.min.ii:12:1: error: expected ‘}’ at end of input ice-cp_lexer_new_from_tokens.min.ii:12:1: error: expected ‘;’ after class definition ice-cp_lexer_new_from_tokens.min.ii:12:1: error: expected template-argument before ‘;’ token ice-cp_lexer_new_from_tokens.min.ii:12:1: error: expected ‘>’ before ‘;’ token ice-cp_lexer_new_from_tokens.min.ii:12:1: error: expected ‘::’ before ‘;’ token ice-cp_lexer_new_from_tokens.min.ii:12:1: error: expected unqualified-id before ‘;’ token ice-cp_lexer_new_from_tokens.min.ii:12:1: error: expected ‘}’ at end of input ice-cp_lexer_new_from_tokens.min.ii:12:1: error: expected ‘;’ after struct definition ice-cp_lexer_new_from_tokens.min.ii:12:1: internal compiler error: in cp_lexer_new_from_tokens, at cp/parser.c:464 Please submit a full bug report,