Build failure in libgfortran with revision 129967 (128328 worked): /home/rask/build/gcc-sh-unknown-elf/./gcc/gfortran -B/home/rask/build/gcc-sh-unknown-elf/./gcc/ -nostdinc -B/home/rask/build/gcc-sh-unknown-elf/sh-unknown-elf/m2e/newlib/ -isystem /home/rask/build/gcc-sh-unknown-elf/sh-unknown-elf/m2e/newlib/targ-include -isystem /n/12/rask/src/all/newlib/libc/include -B/usr/local/sh-unknown-elf/bin/ -B/usr/local/sh-unknown-elf/lib/ -isystem /usr/local/sh-unknown-elf/include -isystem /usr/local/sh-unknown-elf/sys-include -L/home/rask/build/gcc-sh-unknown-elf/./ld -m2e -DHAVE_CONFIG_H -I. -I/n/12/rask/src/all/libgfortran -I. -iquote/n/12/rask/src/all/libgfortran/io -I/n/12/rask/src/all/libgfortran/../gcc -I/n/12/rask/src/all/libgfortran/../gcc/config -I../../.././gcc -D_GNU_SOURCE -I . -Wall -fno-repack-arrays -fno-underscoring -fallow-leading-underscore -g -O2 -m2e -c /n/12/rask/src/all/libgfortran/generated/_sign_r8.F90 -o _sign_r8.o /n/12/rask/src/all/libgfortran/generated/_sign_r8.F90: In function '_gfortran_specific__sign_r8': /n/12/rask/src/all/libgfortran/generated/_sign_r8.F90:46: internal compiler error: in simplify_subreg, at simplify-rtx.c:4921
(gdb) call debug_rtx (target) (reg:SF 159 [ D.489 ]) (gdb) frame 6 #6 0x000000000069c488 in expand_copysign (op0=0x2ae08e34bba0, op1=0x2ae08e34ba80, target=0x1ffffffff) at /n/12/rask/src/all/gcc/optabs.c:3621 3621 rtx targ_piece = operand_subword (target, i, 1, mode); (gdb) call debug_rtx (op0) (mem:DF (reg/v/f:SI 161 [ p1 ]) [2 (* p1) S8 A32]) (gdb) call debug_rtx (op1) (mem:DF (reg/v/f:SI 162 [ p2 ]) [2 (* p2) S8 A32]) (gdb) print mode $4 = DFmode Notice the mismatching modes: mode = DFmode with SFmode target. (gdb) frame 4 #4 0x000000000076a6c9 in simplify_subreg (outermode=SImode, op=0x2ae08e34dfa0, innermode=DFmode, byte=0) at /n/12/rask/src/all/gcc/simplify-rtx.c:4920 4920 gcc_assert (GET_MODE (op) == innermode (gdb) call debug_rtx(op) (reg:SF 159 [ D.489 ]) Command line: ./gcc/f951 _sign_r8.f95 -ffree-form -quiet -dumpbase _sign_r8.F90 -m2e -m2e -auxbase-strip _sign_r8.o -g -O2 -Wall -fno-repack-arrays -fno-underscoring -fallow-leading-underscore -I. -I/n/12/rask/src/all/libgfortran -I. -I/n/12/rask/src/all/libgfortran/../gcc -I/n/12/rask/src/all/libgfortran/../gcc/config -I../../.././gcc -I . -fpreprocessed -o /dev/null Configure flags: --target sh-unknown-elf --enable-checking=yes,rtl --with-newlib --enable-sim --disable-gdb --disable-nls -- Summary: [4.3 Regression] ICE: in simplify_subreg, at simplify- rtx.c:4921 building libgfortran Product: gcc Version: 4.3.0 Status: UNCONFIRMED Keywords: ice-on-valid-code, build Severity: normal Priority: P3 Component: middle-end AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: rask at gcc dot gnu dot org GCC target triplet: sh-unknown-elf http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34040