* config/m68k/m68k.c (notice_update_cc): Handle register conflict
with PRE_DEC.
From-SVN: r203922
+2013-10-22 Andreas Schwab <schwab@suse.de>
+
+ * config/m68k/m68k.c (notice_update_cc): Handle register conflict
+ with PRE_DEC.
+
2013-10-22 Paolo Carlini <paolo.carlini@oracle.com>
* doc/contrib.texi ([Fran@,{c}ois Dumont], [Tim Shen],
2013-10-22 Paolo Carlini <paolo.carlini@oracle.com>
* doc/contrib.texi ([Fran@,{c}ois Dumont], [Tim Shen],
&& cc_status.value2
&& reg_overlap_mentioned_p (cc_status.value1, cc_status.value2))
cc_status.value2 = 0;
&& cc_status.value2
&& reg_overlap_mentioned_p (cc_status.value1, cc_status.value2))
cc_status.value2 = 0;
+ /* Check for PRE_DEC in dest modifying a register used in src. */
+ if (cc_status.value1 && GET_CODE (cc_status.value1) == MEM
+ && GET_CODE (XEXP (cc_status.value1, 0)) == PRE_DEC
+ && cc_status.value2
+ && reg_overlap_mentioned_p (XEXP (XEXP (cc_status.value1, 0), 0),
+ cc_status.value2))
+ cc_status.value2 = 0;
if (((cc_status.value1 && FP_REG_P (cc_status.value1))
|| (cc_status.value2 && FP_REG_P (cc_status.value2))))
cc_status.flags = CC_IN_68881;
if (((cc_status.value1 && FP_REG_P (cc_status.value1))
|| (cc_status.value2 && FP_REG_P (cc_status.value2))))
cc_status.flags = CC_IN_68881;