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tcg-sparc: Fix setcond_i32 uninitialized value

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We failed to swap c1 and c2 correctly for NE c2 == 0.

Signed-off-by: Richard Henderson <rth@twiddle.net>
This commit is contained in:
Richard Henderson 2014-08-06 12:09:56 -07:00 committed by Richard Henderson
parent 90379ca84e
commit 321b6c0585
1 changed files with 5 additions and 2 deletions
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7
tcg/sparc/tcg-target.c
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@ -674,9 +674,12 @@ static void tcg_out_setcond_i32(TCGContext *s, TCGCond cond, TCGReg ret,
case TCG_COND_NE:
/* For equality, we can transform to inequality vs zero. */
if (c2 != 0) {
tcg_out_arithc(s, ret, c1, c2, c2const, ARITH_XOR);
tcg_out_arithc(s, TCG_REG_T1, c1, c2, c2const, ARITH_XOR);
c2 = TCG_REG_T1;
} else {
c2 = c1;
}
c1 = TCG_REG_G0, c2 = ret, c2const = 0;
c1 = TCG_REG_G0, c2const = 0;
cond = (cond == TCG_COND_EQ ? TCG_COND_GEU : TCG_COND_LTU);
break;