target-ppc: Bug in BookE wait instruction

Fixed bug in code generation for the PowerPC "wait" instruction. It doesn't make sense to store a non-initialized register. Signed-off-by: Jakub Horak <[email protected]> [dwg: revised commit message] Signed-off-by: David Gibson <[email protected]>
stefanha · Jun 17, 2016 · 35b5066 · 35b5066
1 parent fcbf4a3
commit 35b5066
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/target-ppc/translate.c b/target-ppc/translate.c
@@ -3499,7 +3499,7 @@ static void gen_sync(DisasContext *ctx)
 /* wait */
 static void gen_wait(DisasContext *ctx)
 {
-    TCGv_i32 t0 = tcg_temp_new_i32();
+    TCGv_i32 t0 = tcg_const_i32(1);
     tcg_gen_st_i32(t0, cpu_env,
                    -offsetof(PowerPCCPU, env) + offsetof(CPUState, halted));
     tcg_temp_free_i32(t0);