3.4 irix6.5 bootstrap failure - ICE in expr.c

[Billinghurst, David (CRTS)]

I haven't been able to bootstrap 3.4 on irix for a while.  Currently I see

stage2/xgcc -Bstage2/ -B/l/billingd/tmp/gcc/mips-sgi-irix6.5/bin/ -c   -g -O2 -DIN_GCC   -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -pedantic -Wno-long-long -Werror -fno-common   -DHAVE_CONFIG_H    -I. -I. -I/l/billingd/src/gcc/gcc -I/l/billingd/src/gcc/gcc/. -I/l/billingd/src/gcc/gcc/config -I/l/billingd/src/gcc/gcc/../include /l/billingd/src/gcc/gcc/expr.c -o expr.o
/l/billingd/src/gcc/gcc/expr.c: In function `expand_expr':
/l/billingd/src/gcc/gcc/expr.c:9313: internal compiler error: tree check: accessed operand 2 of error_mark with 0 operands in 4 $, at :3443
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
make[2]: *** [expr.o] Error 1