abnormal memory sizes for keylocker instructions are not bugs

new `does_not_decode_invalid_registers` fuzzer found other bugs! the
384-bit accesses for 128b keylocker instructions are an
otherwise-unknown size and had a memory size of `BUG`. they are not
bugs. give the memory size a real name.

3 files changed, 11 insertions, 0 deletions

diff --git a/test/long_mode/mod.rs b/test/long_mode/mod.rs
index 25a303c..6b04be2 100644
--- a/test/long_mode/mod.rs
+++ b/test/long_mode/mod.rs
@@ -3442,6 +3442,11 @@ fn test_sevsnp() {
     test_display(&[0xf2, 0x0f, 0x01, 0xfe], "rmpupdate");
 }
 
+#[test]
+fn test_keylocker() {
+    test_display(&[0xf3, 0x0f, 0x38, 0xdd, 0x03], "aesdec128kl xmm0, m384b [rbx]");
+}
+
 // some test cases are best just lifted from llvm or gcc.
 #[test]
 fn from_llvm() {
diff --git a/test/protected_mode/mod.rs b/test/protected_mode/mod.rs
index 8b5571d..752c9df 100644
--- a/test/protected_mode/mod.rs
+++ b/test/protected_mode/mod.rs
@@ -3118,6 +3118,11 @@ fn test_sevsnp() {
     test_display(&[0xf2, 0x0f, 0x01, 0xfe], "rmpupdate");
 }
 
+#[test]
+fn test_keylocker() {
+    test_display(&[0xf3, 0x0f, 0x38, 0xdd, 0x03], "aesdec128kl xmm0, m384b [ebx]");
+}
+
 // some test cases are best just lifted from llvm or gcc.
 #[test]
 fn from_llvm() {
diff --git a/test/real_mode/mod.rs b/test/real_mode/mod.rs
index 7987e4a..1b1a378 100644
--- a/test/real_mode/mod.rs
+++ b/test/real_mode/mod.rs
@@ -17879,6 +17879,7 @@ fn test_real_mode() {
     test_display(&[0xf3, 0x0f, 0x2c, 0xc1], "cvttss2si eax, xmm1");
     test_display(&[0xf3, 0x0f, 0x2d, 0x01], "cvtss2si eax, dword [bx + di * 1]");
     test_display(&[0xf3, 0x0f, 0x2d, 0xc1], "cvtss2si eax, xmm1");
+    test_display(&[0xf3, 0x0f, 0x38, 0xdd, 0x03], "aesdec128kl xmm0, m384b [bp + di * 1]");
     test_display(&[0xf3, 0x0f, 0x38, 0xf6, 0x01], "adox eax, dword [bx + di * 1]");
     test_display(&[0xf3, 0x0f, 0x38, 0xf6, 0xc1], "adox eax, ecx");
     test_display(&[0xf3, 0x0f, 0x51, 0x01], "sqrtss xmm0, dword [bx + di * 1]");