Imported Upstream version 5.18.0.179

Former-commit-id: 67aa10e65b237e1c4537630979ee99ebe1374215

external/llvm/test/MC/Disassembler/ARM/invalid-thumb-MSR-MClass.txt

@@ -0,0 +1,35 @@
+# RUN: not llvm-mc -disassemble %s -triple=thumbv7em 2>&1 | FileCheck %s
+# RUN: not llvm-mc -disassemble %s -triple=thumbv7m 2>&1 | FileCheck --check-prefix=CHECK --check-prefix=CHECK-V7M %s
+
+#------------------------------------------------------------------------------
+# Undefined encodings for mrs
+#------------------------------------------------------------------------------
+
+# invalid SYSm
+# CHECK: warning: invalid instruction encoding
+# CHECK-NEXT: [0xef 0xf3 0x80 0x80]
+[0xef 0xf3 0x80 0x80]
+
+#------------------------------------------------------------------------------
+# Undefined encodings for msr
+#------------------------------------------------------------------------------
+
+# invalid mask = '00'
+# CHECK: warning: potentially undefined instruction encoding
+# CHECK-NEXT: [0x80 0xf3 0x00 0x80]
+[0x80 0xf3 0x00 0x80]
+
+# invalid mask = '11' with SYSm not in {0..3}
+# CHECK: warning: potentially undefined instruction encoding
+# CHECK-NEXT: [0x80 0xf3 0x05 0x8c]
+[0x80 0xf3 0x05 0x8c]
+
+# invalid mask = '01' (ThumbV7M does not have the DSP extension)
+# CHECK-V7M: warning: potentially undefined instruction encoding
+# CHECK-V7M-NEXT: [0x80 0xf3 0x00 0x84]
+[0x80 0xf3 0x00 0x84]
+
+# invalid SYSm
+# CHECK: warning: invalid instruction encoding
+# CHECK-NEXT: [0x80 0xf3 0x80 0x88]
+[0x80 0xf3 0x80 0x88]