------- Comment #8 from hjl at lucon dot org 2007-03-26 04:04 -------
The invalid insn is added via
#0 add_insn (insn=0x2aaaaaafc690)
at /export/gnu/src/gcc/gcc/gcc/emit-rtl.c:3411
#1 0x00000000004fb88d in emit_insn (x=0x2aaaaaafc690)
at /export/gnu/src/gcc/gcc/gcc/emit-rtl.c:4336
#2 0x000000000051f3f8 in emit_move_insn_1 (x=0x2aaaaacecd80, y=0x2aaaaacfb080)
at /export/gnu/src/gcc/gcc/gcc/expr.c:3260
#3 0x000000000051f725 in emit_move_insn (x=0x2aaaaacecd80, y=0x2aaaaacfb080)
at /export/gnu/src/gcc/gcc/gcc/expr.c:3351
#4 0x0000000000507baf in force_reg (mode=SImode, x=0x2aaaaacfb080)
at /export/gnu/src/gcc/gcc/gcc/explow.c:680
#5 0x0000000000507695 in memory_address (mode=SImode, x=0x2aaaaacfb080)
at /export/gnu/src/gcc/gcc/gcc/explow.c:485
#6 0x00000000004f7491 in change_address_1 (memref=0x2aaaaacecd60,
mode=SImode, addr=0x2aaaaacfb080, validate=1)
at /export/gnu/src/gcc/gcc/gcc/emit-rtl.c:1811
#7 0x00000000004f7add in adjust_address_1 (memref=0x2aaaaacecd60,
mode=SImode, offset=0, validate=1, adjust=1)
at /export/gnu/src/gcc/gcc/gcc/emit-rtl.c:1895
#8 0x000000000051e778 in emit_move_change_mode (new_mode=SImode,
old_mode=SDmode, x=0x2aaaaacecd60, force=1 '\001')
at /export/gnu/src/gcc/gcc/gcc/expr.c:2882
#9 0x000000000051e830 in emit_move_via_integer (mode=SDmode,
x=0x2aaaaacecd60, y=0x2aaaaacecb40, force=1 '\001')
---Type <return> to continue, or q <return> to quit---
at /export/gnu/src/gcc/gcc/gcc/expr.c:2921
#10 0x000000000051f45f in emit_move_insn_1 (x=0x2aaaaacecd60, y=0x2aaaaacecb40)
at /export/gnu/src/gcc/gcc/gcc/expr.c:3268
#11 0x000000000051f725 in emit_move_insn (x=0x2aaaaacecd60, y=0x2aaaaacecb40)
at /export/gnu/src/gcc/gcc/gcc/expr.c:3351
#12 0x000000000051fecc in emit_single_push_insn (mode=SDmode,
x=0x2aaaaacecb40, type=0x2aaaaab16c00)
at /export/gnu/src/gcc/gcc/gcc/expr.c:3582
#13 0x0000000000520757 in emit_push_insn (x=0x2aaaaacecb40, mode=SDmode,
type=0x2aaaaab16c00, size=0x0, align=32, partial=0, reg=0x0, extra=0,
args_addr=0x0, args_so_far=0x2aaaaaafb400, reg_parm_stack_space=0,
alignment_pad=0x2aaaaaafb400) at /export/gnu/src/gcc/gcc/gcc/expr.c:3852
#14 0x00000000004a3c1c in store_one_arg (arg=0x7fff5d787aa8, argblock=0x0,
flags=0, variable_size=0, reg_parm_stack_space=0)
at /export/gnu/src/gcc/gcc/gcc/calls.c:4239
#15 0x000000000049f94c in expand_call (exp=0x2aaaaacebb40, target=0x0,
ignore=1) at /export/gnu/src/gcc/gcc/gcc/calls.c:2652
#16 0x000000000052a40c in expand_expr_real_1 (exp=0x2aaaaacebb40, target=0x0,
tmode=VOIDmode, modifier=EXPAND_NORMAL, alt_rtl=0x0)
at /export/gnu/src/gcc/gcc/gcc/expr.c:7785
#17 0x0000000000527414 in expand_expr_real (exp=0x2aaaaacebb40,
target=0x2aaaaaafb400, tmode=VOIDmode, modifier=EXPAND_NORMAL, alt_rtl=0x0)
at /export/gnu/src/gcc/gcc/gcc/expr.c:6785
We didn't see this problem before is because decimal float wasn't enabled
by default on x86 until revision 123185.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31344
