https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61853
Bug ID: 61853 Summary: [4.9,4.10 Regression] ICE: SIGSEGV in store_field Product: gcc Version: 4.9.2 Status: UNCONFIRMED Severity: normal Priority: P3 Component: middle-end Assignee: unassigned at gcc dot gnu.org Reporter: danglin at gcc dot gnu.org Host: hppa-unknown-linux-gnu Target: hppa-unknown-linux-gnu Build: hppa-unknown-linux-gnu (gdb) r Starting program: /home/dave/gnu/gcc/objdir/stage1-gcc/cc1plus -fpreprocessed ConstituentParticleData.ii -quiet -dumpbase ConstituentParticleData.cc -auxbase-strip .libs/ConstituentParticleData.o -g -O2 -Wpedantic -Wall -Wextra -Wformat=1 -Werror=format-security -ansi -version -fPIC -o ConstituentParticleData.s GNU C++ (GCC) version 4.10.0 20140717 (experimental) [trunk revision 212770] (hppa-linux-gnu) compiled by GNU C version 4.9.0, GMP version 6.0.0, MPFR version 3.1.2-p3, MPC version 1.0.2 GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096 GNU C++ (GCC) version 4.10.0 20140717 (experimental) [trunk revision 212770] (hppa-linux-gnu) compiled by GNU C version 4.9.0, GMP version 6.0.0, MPFR version 3.1.2-p3, MPC version 1.0.2 GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096 Compiler executable checksum: 03431aebbd62606890d51bba87e8825f Program received signal SIGSEGV, Segmentation fault. 0x00a5870c in store_field (target=0xf7275af0, bitsize=64, bitpos=0, bitregion_start=0, bitregion_end=63, mode=DFmode, exp=0xf6f412d0, alias_set=7, nontemporal=<error reading variable: can't compute CFA for this frame>) at ../../gcc/gcc/expr.c:6493 6493 && ((((MEM_ALIGN (target) < GET_MODE_ALIGNMENT (mode)) (gdb) p debug_rtx (target) (parallel:BLK [ (expr_list:REG_DEP_TRUE (reg:DI 101 [ <retval> ]) (const_int 0 [0])) ]) $1 = void Maybe one can't store into a BLKmode structure? ICE doesn't occur with 4.8.