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-rw-r--r--target-arm/helper.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/target-arm/helper.c b/target-arm/helper.c
index 8d8a8de3bd..b7c926db18 100644
--- a/target-arm/helper.c
+++ b/target-arm/helper.c
@@ -1608,7 +1608,9 @@ void define_one_arm_cp_reg_with_opaque(ARMCPU *cpu,
ARMCPRegInfo *r2 = g_memdup(r, sizeof(ARMCPRegInfo));
int is64 = (r->type & ARM_CP_64BIT) ? 1 : 0;
*key = ENCODE_CP_REG(r->cp, is64, r->crn, crm, opc1, opc2);
- r2->opaque = opaque;
+ if (opaque) {
+ r2->opaque = opaque;
+ }
/* Make sure reginfo passed to helpers for wildcarded regs
* has the correct crm/opc1/opc2 for this reg, not CP_ANY:
*/