+2000-11-25 Richard Henderson <rth@redhat.com>
+
+ * haifa-sched.c (sched_analyze_1, sched_analyze_2, sched_analyze):
+ Revert 2000-11-22 change.
+
2000-11-25 Bernd Schmidt <bernds@redhat.co.uk>
* config/i386/i386.h (FIXED_REGS): Make the three flags registers
}
else
SET_REGNO_REG_SET (reg_pending_clobbers, r);
+
+ /* Function calls clobber all call_used regs. */
+ if (global_regs[r] || (code == SET && call_used_regs[r]))
+ for (u = deps->last_function_call; u; u = XEXP (u, 1))
+ add_dependence (insn, XEXP (u, 0), REG_DEP_ANTI);
}
}
else
/* ??? This should never happen. */
for (u = deps->reg_last_clobbers[r]; u; u = XEXP (u, 1))
add_dependence (insn, XEXP (u, 0), 0);
+
+ if (call_used_regs[r] || global_regs[r])
+ /* Function calls clobber all call_used regs. */
+ for (u = deps->last_function_call; u; u = XEXP (u, 1))
+ add_dependence (insn, XEXP (u, 0), REG_DEP_ANTI);
}
}
else
{
for (u = deps->reg_last_uses[i]; u; u = XEXP (u, 1))
add_dependence (insn, XEXP (u, 0), REG_DEP_ANTI);
- free_INSN_LIST_list (&deps->reg_last_uses[i]);
for (u = deps->reg_last_sets[i]; u; u = XEXP (u, 1))
- add_dependence (insn, XEXP (u, 0), REG_DEP_OUTPUT);
- free_INSN_LIST_list (&deps->reg_last_sets[i]);
+ add_dependence (insn, XEXP (u, 0), REG_DEP_ANTI);
SET_REGNO_REG_SET (reg_pending_clobbers, i);
}