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cross-s390-gcc48-icecream-backend.7638
m68k-notice-update-cc.patch
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File m68k-notice-update-cc.patch of Package cross-s390-gcc48-icecream-backend.7638
diff --git a/gcc/config/m68k/m68k.c b/gcc/config/m68k/m68k.c index 5e3236f..7035504 100644 --- a/gcc/config/m68k/m68k.c +++ b/gcc/config/m68k/m68k.c @@ -4209,6 +4209,13 @@ notice_update_cc (rtx exp, rtx insn) && 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;
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