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(notice_update_cc, case ASHIFT{,RT}, LSHIFTRT, ROTATE{,RT}): Don't set

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CC_NO_OVERFLOW.

From-SVN: r11785
This commit is contained in:
Richard Kenner 1996-04-15 08:21:56 -04:00
parent ca366d6857
commit b757e35281
1 changed files with 2 additions and 0 deletions
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2
gcc/config/m68k/m68k.c
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@ -1675,8 +1675,10 @@ notice_update_cc (exp, insn)
{ {
case PLUS: case MINUS: case MULT: case PLUS: case MINUS: case MULT:
case DIV: case UDIV: case MOD: case UMOD: case NEG: case DIV: case UDIV: case MOD: case UMOD: case NEG:
#if 0 /* These instructions always clear the overflow bit */
case ASHIFT: case ASHIFTRT: case LSHIFTRT: case ASHIFT: case ASHIFTRT: case LSHIFTRT:
case ROTATE: case ROTATERT: case ROTATE: case ROTATERT:
#endif
if (GET_MODE (cc_status.value2) != VOIDmode) if (GET_MODE (cc_status.value2) != VOIDmode)
cc_status.flags |= CC_NO_OVERFLOW; cc_status.flags |= CC_NO_OVERFLOW;
break; break;