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[PULL,33/47] target/arm/translate-a64: Fix FCMLA decoding error

Message ID 20190201160653.13829-34-peter.maydell@linaro.org
State New
Headers show
Series [PULL,01/47] hw/arm/nrf51_soc: set object owner in memory_region_init_ram | expand

Commit Message

Peter Maydell Feb. 1, 2019, 4:06 p.m. UTC 
The FCMLA (by element) instruction exists in the
"vector x indexed element" encoding group, but not in
the "scalar x indexed element" group. Correctly UNDEF
the unallocated encodings.

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: 20190129140411.682-2-peter.maydell@linaro.org
---
 target/arm/translate-a64.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
index 07fa0523935..d46ea9f64e7 100644
--- a/target/arm/translate-a64.c
+++ b/target/arm/translate-a64.c
@@ -12650,7 +12650,7 @@  static void disas_simd_indexed(DisasContext *s, uint32_t insn)
     case 0x13: /* FCMLA #90 */
     case 0x15: /* FCMLA #180 */
     case 0x17: /* FCMLA #270 */
-        if (!dc_isar_feature(aa64_fcma, s)) {
+        if (is_scalar || !dc_isar_feature(aa64_fcma, s)) {
             unallocated_encoding(s);
             return;
         }