[Qemu-devel] [PULL v2 3/9] tcg-sparc: Fix setcond_i32 uninitialized value

[Richard Henderson <rth@twiddle.net>]

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

Signed-off-by: Richard Henderson <rth@twiddle.net>
---
 tcg/sparc/tcg-target.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/tcg/sparc/tcg-target.c b/tcg/sparc/tcg-target.c
index 08ca482..3b232d6 100644
--- a/tcg/sparc/tcg-target.c
+++ b/tcg/sparc/tcg-target.c
@@ -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;
 
-- 
1.9.3