[Qemu-devel] [PATCH 13/13] target-arm: Handle UNDEF cases for VDUP (scalar)

[Peter Maydell]

From: Juha Riihimäki <juha.riihim...@nokia.com>

Handle the UNDEF cases for VDUP(scalar):
 imm4 == x000
 Q == 1 && Vd<0> == 1

Signed-off-by: Juha Riihimäki <juha.riihim...@nokia.com>
---
 target-arm/translate.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/target-arm/translate.c b/target-arm/translate.c
index be25c8f..6190028 100644
--- a/target-arm/translate.c
+++ b/target-arm/translate.c
@@ -6057,6 +6057,9 @@ static int disas_neon_data_insn(CPUState * env, 
DisasContext *s, uint32_t insn)
                 tcg_temp_free_i32(tmp);
             } else if ((insn & 0x380) == 0) {
                 /* VDUP */
+                if ((insn & (7 << 16)) == 0 || (q && (rd & 1))) {
+                    return 1;
+                }
                 if (insn & (1 << 19)) {
                     tmp = neon_load_reg(rm, 1);
                 } else {
-- 
1.7.1