http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47540
--- Comment #3 from Joel Sherrill <joel at gcc dot gnu.org> 2011-01-30 16:39:05 UTC --- Test case also fails on arm-rtems4.11 4.5.2 and arm-rtems4.10 4.4.5. It works on arm-rtems4.9 which is 4.3.2 ========================= 4.5.2 $ sh -x j + /opt/rtems-4.11/bin/arm-rtems4.11-gcc --version arm-rtems4.11-gcc (GCC) 4.5.2 20101216 (RTEMS gcc-4.5.2-3.fc14/newlib-1.19.0-1.fc14) Copyright (C) 2010 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. + /opt/rtems-4.11/bin/arm-rtems4.11-gcc -c -O2 -mthumb t1.c t1.c: In function 'f': t1.c:3:1: internal compiler error: in find_valid_class, at reload.c:704 Please submit a full bug report, with preprocessed source if appropriate. See <http://gcc.gnu.org/bugs.html> for instructions. + /opt/rtems-4.11/bin/arm-rtems4.11-gcc -c -O1 -mthumb t1.c t1.c: In function 'f': t1.c:3:1: internal compiler error: in find_valid_class, at reload.c:704 Please submit a full bug report, with preprocessed source if appropriate. See <http://gcc.gnu.org/bugs.html> for instructions. + /opt/rtems-4.11/bin/arm-rtems4.11-gcc -c -O0 -mthumb t1.c t1.c: In function 'f': t1.c:3:1: error: unable to find a register to spill in class 'GENERAL_REGS' t1.c:3:1: error: this is the insn: (insn 36 35 37 4 t1.c:3 (set (subreg:DF (reg:DC 147) 0) (reg:DF 0 r0)) 184 {*thumb_movdf_insn} (nil)) t1.c:3: confused by earlier errors, bailing out + /opt/rtems-4.11/bin/arm-rtems4.11-gcc -c -Os -mthumb t1.c ========================= 4.4.5 $ sh -x j + /opt/rtems-4.10/bin/arm-rtems4.10-gcc --version arm-rtems4.10-gcc (GCC) 4.4.5 20101001 (RTEMS gcc-4.4.5-4.fc13/newlib-1.18.0-19.fc13) Copyright (C) 2010 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. + /opt/rtems-4.10/bin/arm-rtems4.10-gcc -c -O2 -mthumb t1.c t1.c: In function 'f': t1.c:3: internal compiler error: in find_valid_class, at reload.c:700 Please submit a full bug report, with preprocessed source if appropriate. See <http://gcc.gnu.org/bugs.html> for instructions. + /opt/rtems-4.10/bin/arm-rtems4.10-gcc -c -O1 -mthumb t1.c t1.c: In function 'f': t1.c:3: internal compiler error: in find_valid_class, at reload.c:700 Please submit a full bug report, with preprocessed source if appropriate. See <http://gcc.gnu.org/bugs.html> for instructions. + /opt/rtems-4.10/bin/arm-rtems4.10-gcc -c -O0 -mthumb t1.c + /opt/rtems-4.10/bin/arm-rtems4.10-gcc -c -Os -mthumb t1.c =========================== 4.3.2 $ sh -x j + /opt/rtems-4.9/bin/arm-rtems4.9-gcc --version arm-rtems4.9-gcc (GCC) 4.3.2 20080827 (RTEMS gcc-4.3.2-24.el5/newlib-1.16.0-24.el5) Copyright (C) 2008 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. + /opt/rtems-4.9/bin/arm-rtems4.9-gcc -c -O2 -mthumb t1.c + /opt/rtems-4.9/bin/arm-rtems4.9-gcc -c -O1 -mthumb t1.c + /opt/rtems-4.9/bin/arm-rtems4.9-gcc -c -O0 -mthumb t1.c + /opt/rtems-4.9/bin/arm-rtems4.9-gcc -c -Os -mthumb t1.c
