================
@@ -0,0 +1,26 @@
+# RUN: llvm-mc --disassemble %s -triple=x86_64 | FileCheck %s
--check-prefixes=ATT
+# RUN: llvm-mc --disassemble %s -triple=x86_64 --output-asm-variant=1 |
FileCheck %s --check-prefixes=INTEL
+
+# ATT: urdmsr $123, %r9
+# INTEL: urdmsr r9, 123
+0xc4,0xc7,0x7b,0xf8,0xc1,0x7b,0x00,0x00,0x00
+
+# ATT: urdmsr %r9, %r9
+# INTEL: urdmsr r9, r9
+0xf2,0x45,0x0f,0x38,0xf8,0xc9
+
+# ATT: urdmsr %r9, %r9
+# INTEL: urdmsr r9, r9
+0xf2,0x4d,0x0f,0x38,0xf8,0xc9
----------------
FreddyLeaf wrote:
All legacy Instructions with R64 supported could be judged as "software WIG".
So this is a WIG instruction, too. Same as below:
```
$ echo "0xf3,0x41,0x0f,0xc7,0xf0" | llvm-mc --disassemble
.text
senduipi %r8
$ echo "0xf3,0x49,0x0f,0xc7,0xf0" | llvm-mc --disassemble
.text
senduipi %r8
```
Will add a comment.
https://github.com/llvm/llvm-project/pull/68944
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