Hello,
Recent changes to dwarf information adds call_arg_location notes just
after the call instruction. They need to follow the call instruction
strictly. But, this means that they could occur in the middle of a VLIW
instruction. Our assembler currently can not handle labels in the middle
of a VLIW. We are working towards a port of GNU assembler which should
make this easy in the future. Committed to mainline as r174322
Thanks
Hari
ChangeLog:
* config/picochip/picochip.c (reorder_var_tracking_notes): Drop
call_arg_location instructions down the floor.
Patch:
Index: gcc/config/picochip/picochip.c
===================================================================
--- gcc/config/picochip/picochip.c (revision 174269)
+++ gcc/config/picochip/picochip.c (working copy)
@@ -3243,13 +3243,20 @@
}
}
}
- else if (NOTE_P (insn) && NOTE_KIND (insn) ==
NOTE_INSN_VAR_LOCATION)
+ else if (NOTE_P (insn))
{
rtx prev = PREV_INSN (insn);
PREV_INSN (next) = prev;
NEXT_INSN (prev) = next;
- PREV_INSN (insn) = queue;
- queue = insn;
+ /* Ignore call_arg notes. They are expected to be just
after the
+ call insn. If the call is start of a long VLIW,
labels are
+ emitted in the middle of a VLIW, which our assembler
can not
+ handle. */
+ if (NOTE_KIND (insn) != NOTE_INSN_CALL_ARG_LOCATION)
+ {
+ PREV_INSN (insn) = queue;
+ queue = insn;
+ }
}
}
/* Make sure we are not dropping debug instructions.*/
