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[PULL,03/18] target-ppc: Bug in BookE wait instruction

Message ID 1466145399-32209-4-git-send-email-david@gibson.dropbear.id.au
State New
Headers show

Commit Message

David Gibson June 17, 2016, 6:36 a.m. UTC 
From: Jakub Horak <thement@ibawizard.net>

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 <thement@ibawizard.net>
[dwg: revised commit message]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
---
 target-ppc/translate.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/target-ppc/translate.c b/target-ppc/translate.c
index b689475..1f401b7 100644
--- 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);