Imported Upstream version 6.10.0.49

Former-commit-id: 1d6753294b2993e1fbf92de9366bb9544db4189b

external/llvm-project/llvm/test/MC/AArch64/invalid-instructions-spellcheck.s

@@ -0,0 +1,37 @@
+// RUN: not llvm-mc -triple=aarch64 -show-encoding < %s 2>&1 | FileCheck %s
+// RUN: not llvm-mc -triple=aarch64 -mattr=-neon -show-encoding < %s 2>&1 | FileCheck %s --check-prefix=CHECK-NO-NEON
+
+// This tests the mnemonic spell checker.
+
+// First check what happens when an instruction is omitted:
+
+  w1, w2, w3
+
+// CHECK:      error: unknown token in expression
+// CHECK-NEXT: w1, w2, w3
+// CHECK-NEXT:   ^
+// CHECK-NEXT: error: invalid operand
+// CHECK-NEXT: w1, w2, w3
+// CHECK-NEXT:   ^
+
+// We don't want to see a suggestion here; the edit distance is too large to
+// give sensible suggestions:
+
+  addddddddd w1, w2, w3
+
+// CHECK:      error: unrecognized instruction mnemonic
+// CHECK-NEXT: addddddddd w1, w2, w3
+// CHECK-NEXT: ^
+
+  addd w1, w2, w3
+
+// CHECK:      error: unrecognized instruction mnemonic, did you mean: add, addp, adds, addv, fadd, madd?
+// CHECK-NEXT: addd w1, w2, w3
+// CHECK-NEXT: ^
+
+// Instructions 'addv' and 'addp' are only available when NEON is enabled, so we
+// don't want to see them here:
+
+// CHECK-NO-NEON:      error: unrecognized instruction mnemonic, did you mean: add, adds, fadd, madd?
+// CHECK-NO-NEON-NEXT: addd w1, w2, w3
+// CHECK-NO-NEON-NEXT: ^