aboutsummaryrefslogtreecommitdiff
path: root/target
diff options
context:
space:
mode:
authorPeter Maydell <peter.maydell@linaro.org>2019-02-01 14:55:45 +0000
committerPeter Maydell <peter.maydell@linaro.org>2019-02-01 14:55:45 +0000
commit4977986ca38fb1d5357532e1a8032b984047a369 (patch)
tree54ea22a5274161b019bf60318376a065804017a2 /target
parentc1e20801f5ee53472dbf2757df605543f3f4ce0b (diff)
target/arm/translate-a64: Don't underdecode SDOT and UDOT
In the AdvSIMD scalar x indexed element and vector x indexed element encoding group, the SDOT and UDOT instructions are vector only, and their opcode is unallocated in the scalar group. Correctly UNDEF this unallocated encoding. Reported-by: Laurent Desnogues <laurent.desnogues@gmail.com> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Laurent Desnogues <laurent.desnogues@gmail.com> Message-id: 20190125182626.9221-8-peter.maydell@linaro.org
Diffstat (limited to 'target')
-rw-r--r--target/arm/translate-a64.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
index 6c4b20daf2..07fa052393 100644
--- a/target/arm/translate-a64.c
+++ b/target/arm/translate-a64.c
@@ -12641,7 +12641,7 @@ static void disas_simd_indexed(DisasContext *s, uint32_t insn)
break;
case 0x0e: /* SDOT */
case 0x1e: /* UDOT */
- if (size != MO_32 || !dc_isar_feature(aa64_dp, s)) {
+ if (is_scalar || size != MO_32 || !dc_isar_feature(aa64_dp, s)) {
unallocated_encoding(s);
return;
}