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diff --git a/test/MC/Disassembler/AArch64/arm64-system.txt b/test/MC/Disassembler/AArch64/arm64-system.txt
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+# RUN: llvm-mc -triple arm64-apple-darwin --disassemble < %s | FileCheck %s
+
+
+#-----------------------------------------------------------------------------
+# Hint encodings
+#-----------------------------------------------------------------------------
+
+ 0x1f 0x20 0x03 0xd5
+# CHECK: nop
+ 0x9f 0x20 0x03 0xd5
+# CHECK: sev
+ 0xbf 0x20 0x03 0xd5
+# CHECK: sevl
+ 0x5f 0x20 0x03 0xd5
+# CHECK: wfe
+ 0x7f 0x20 0x03 0xd5
+# CHECK: wfi
+ 0x3f 0x20 0x03 0xd5
+# CHECK: yield
+
+#-----------------------------------------------------------------------------
+# Single-immediate operand instructions
+#-----------------------------------------------------------------------------
+
+ 0x5f 0x3a 0x03 0xd5
+# CHECK: clrex #10
+ 0xdf 0x3f 0x03 0xd5
+# CHECK: isb{{$}}
+ 0xdf 0x31 0x03 0xd5
+# CHECK: isb #1
+ 0xbf 0x33 0x03 0xd5
+# CHECK: dmb osh
+ 0x9f 0x37 0x03 0xd5
+# CHECK: dsb nsh
+ 0x3f 0x76 0x08 0xd5
+# CHECK: dc ivac
+
+#-----------------------------------------------------------------------------
+# Generic system instructions
+#-----------------------------------------------------------------------------
+ 0xff 0x05 0x0a 0xd5
+ 0xe7 0x6a 0x0f 0xd5
+ 0xf4 0x3f 0x2e 0xd5
+ 0xbf 0x40 0x00 0xd5
+ 0x00 0xb0 0x18 0xd5
+ 0x00 0xb0 0x38 0xd5
+
+# CHECK: sys #2, c0, c5, #7
+# CHECK: sys #7, c6, c10, #7, x7
+# CHECK: sysl x20, #6, c3, c15, #7
+# CHECK: msr SPSEL, #0
+# CHECK: msr S3_0_C11_C0_0, x0
+# CHECK: mrs x0, S3_0_C11_C0_0
+
+ 0x40 0xc0 0x1e 0xd5
+ 0x40 0xc0 0x1c 0xd5
+ 0x40 0xc0 0x18 0xd5
+
+# CHECK: msr RMR_EL3, x0
+# CHECK: msr RMR_EL2, x0
+# CHECK: msr RMR_EL1, x0
+