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target-mips: fix logically dead code reported by Coverity

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Make use of CMPOP in floating-point compare instructions.

Backports commit 47ada0ad3431b39863918dc80386634693d317b5 from qemu
This commit is contained in:
Leon Alrae 2018-02-14 17:02:50 -05:00 committed by Lioncash
parent 884fe72f54
commit b045c2c99a
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GPG Key ID: 4E3C3CC1031BA9C7
1 changed files with 3 additions and 0 deletions
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3
qemu/target-mips/translate.c
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@ -9638,6 +9638,7 @@ static void gen_farith (DisasContext *ctx, enum fopcode op1,
gen_cmp_s(ctx, func-48, ft, fs, cc);
opn = condnames[func-48];
}
optype = CMPOP;
break;
case OPC_ADD_D:
check_cp1_registers(ctx, fs | ft | fd);
@ -10122,6 +10123,7 @@ static void gen_farith (DisasContext *ctx, enum fopcode op1,
gen_cmp_d(ctx, func-48, ft, fs, cc);
opn = condnames[func-48];
}
optype = CMPOP;
break;
case OPC_CVT_S_D:
check_cp1_registers(ctx, fs);
@ -10547,6 +10549,7 @@ static void gen_farith (DisasContext *ctx, enum fopcode op1,
gen_cmp_ps(ctx, func-48, ft, fs, cc);
opn = condnames[func-48];
}
optype = CMPOP;
break;
default:
MIPS_INVAL(opn);