https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64664
Bug ID: 64664 Summary: [5 Regression] ICE: tree check: expected function_decl, have <invalid tree code> in opts_for_fn, at tree.h:4706 Product: gcc Version: 5.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: ipa Assignee: unassigned at gcc dot gnu.org Reporter: trippels at gcc dot gnu.org CC: hubicka at gcc dot gnu.org, marxin at gcc dot gnu.org I guess either r219822 or r219823 caused the following Firefox build error: /home/trippels/gcc_test/usr/local/bin/c++ -fPIC -Wall -Wempty-body -Woverloaded-virtual -Wsign-compare -Wwrite-strings -Werror=endif-labels -Werror=int-to-pointer-cast -Werror=missing-braces -Werror=pointer-arith -Werror=return-type -Werror=sequence-point -Werror=unused-label -Werror=trigraphs -Werror=type-limits -Wno-invalid-offsetof -Wcast-align -flto=80 --param lto-partitions=80 -mcpu=power8 -ffunction-sections -fdata-sections -fno-exceptions -fno-strict-aliasing -frtti -fno-exceptions -fno-math-errno -std=gnu++0x -pthread -pipe -UDEBUG -DNDEBUG -O3 -DU_STATIC_IMPLEMENTATION -fvisibility=hidden -W -Wall -pedantic -Wpointer-arith -Wwrite-strings -Wno-long-long -Wno-unused -Wno-unused-parameter -lpthread -Wl,--hash-style=gnu,--as-needed,--gc-sections,--icf=all -Wl,-z,noexecstack -Wl,-z,text -Wl,--build-id -Wl,--gc-sections -o ../../bin/makeconv makeconv.o ucnvstat.o genmbcs.o gencnvex.o -L../../lib -licutu -L../../lib -licui18n -L../../lib -licuuc -L../../stubdata -licudata -lpthread -ldl -lm lto1: internal compiler error: tree check: expected function_decl, have <invalid tree code> in opts_for_fn, at tree.h:4706 0x109fcf23 tree_check_failed(tree_node const*, char const*, int, char const*, ...) ../../gcc/gcc/tree.c:9290 0x10164e17 tree_check(tree_node const*, char const*, int, char const*, tree_code) ../../gcc/gcc/tree.h:3091 0x10164e17 opts_for_fn ../../gcc/gcc/tree.h:4706 0x10d90b33 opts_for_fn ../../gcc/gcc/tree.h:2846 0x10d90b33 ipa_icf::sem_item_optimizer::filter_removed_items() ../../gcc/gcc/ipa-icf.c:1656 0x10d921bf ipa_icf::sem_item_optimizer::execute() ../../gcc/gcc/ipa-icf.c:1703 0x10d930a3 ipa_icf_driver ../../gcc/gcc/ipa-icf.c:2460 0x10d930a3 ipa_icf::pass_ipa_icf::execute(function*) ../../gcc/gcc/ipa-icf.c:2508 Please submit a full bug report, with preprocessed source if appropriate. Please include the complete backtrace with any bug report. See <http://gcc.gnu.org/bugs.html> for instructions. lto-wrapper: fatal error: /home/trippels/gcc_test/usr/local/bin/c++ returned 1 exit status