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+
+aarch64: incorrect emulation of sqshrn instruction
+Description of problem:
+`sqshrn` instruction test fails with qemu-aarch64, but passes on real aarch64 hardware.
+Steps to reproduce:
+1. Build [inline_asm_tests](https://cs.android.com/android/platform/superproject/main/+/main:frameworks/libs/binary_translation/tests/inline_asm_tests/) and run with qemu-aarch64
+2. Observe two failures
+
+```
+[ RUN      ] Arm64InsnTest.SignedSaturatingShiftRightNarrowInt16x1
+frameworks/libs/binary_translation/tests/inline_asm_tests/main_arm64.cc:6697: Failure
+Expected equality of these values:
+  res1
+    Which is: 4294967188
+  MakeUInt128(0x94U, 0U)
+    Which is: 148
+[  FAILED  ] Arm64InsnTest.SignedSaturatingShiftRightNarrowInt16x1 (5 ms)
+[ RUN      ] Arm64InsnTest.SignedSaturatingRoundingShiftRightNarrowInt16x1
+frameworks/libs/binary_translation/tests/inline_asm_tests/main_arm64.cc:6793: Failure
+Expected equality of these values:
+  res3
+    Which is: 4294967168
+  MakeUInt128(0x0000000000000080ULL, 0x0000000000000000ULL)
+    Which is: 128
+[  FAILED  ] Arm64InsnTest.SignedSaturatingRoundingShiftRightNarrowInt16x1 (2 ms)
+```
+Additional information:
+[Direct link to SignedSaturatingShiftRightNarrowInt16x1 test source](https://cs.android.com/android/platform/superproject/main/+/main:frameworks/libs/binary_translation/tests/inline_asm_tests/main_arm64.cc;l=6692;drc=4ee2c3035fa5dc0b7a48b6c6dc498296be071861)