2001-12-23 Richard Henderson <rth@redhat.com>
+ * config/alpha/alpha.c (call_operand) [OSF]: Disallow virtual regs.
+
* config/alpha/alpha.md (UNSPEC_SIBCALL): New.
(sibcall, sibcall_value, sibcall_osf_1_er, sibcall_osf_1): Use it.
(sibcall_value_osf_1_er, sibcall_value_osf_1): Likewise.
if (GET_CODE (op) == REG)
{
if (TARGET_ABI_OSF)
- return (REGNO (op) == 27 || REGNO (op) >= FIRST_PSEUDO_REGISTER);
+ {
+ /* Disallow virtual registers to cope with pathalogical test cases
+ such as compile/930117-1.c in which the virtual reg decomposes
+ to the frame pointer. Which is a hard reg that is not $27. */
+ return (REGNO (op) == 27 || REGNO (op) > LAST_VIRTUAL_REGISTER);
+ }
else
return 1;
}