[PATCH] x86: also test alternative VMGEXIT encoding

[Jan Beulich]

gas/
2020-06-XX  Jan Beulich  <jbeulich@suse.com>

	* testsuite/gas/i386/arch-13.s: Add alternative VMGEXIT case.
	* testsuite/gas/i386/arch-13.d: Extend -march=. Adjust
	expectations.

---
Note that this will cause a testsuite failure until 6fde587ff78a ("x86:
Delete incorrect vmgexit entry in prefix_table") gets reverted, as was
already requested.

--- a/gas/testsuite/gas/i386/arch-13.d
+++ b/gas/testsuite/gas/i386/arch-13.d
@@ -1,4 +1,4 @@
-#as: -march=i686+smap+adx+rdseed+clzero+xsavec+xsaves+clflushopt+mwaitx+rdpid+clwb+wbnoinvd+rdpru+mcommit+sev_es
+#as: -march=i686+smap+adx+rdseed+clzero+xsavec+xsaves+clflushopt+mwaitx+rdpid+clwb+wbnoinvd+rdpru+mcommit+svme+sev_es
 #objdump: -dw
 #name: i386 arch 13
 
@@ -29,5 +29,6 @@ Disassembly of section .text:
 [ 	]*[a-f0-9]+:[ 	]*f3 0f c7 f8[ 	]*rdpid  %eax
 [ 	]*[a-f0-9]+:[ 	]*0f 01 fd[ 	]*rdpru[ 	]*
 [ 	]*[a-f0-9]+:[ 	]*f3 0f 01 d9[ 	]*vmgexit[ 	]*
+[ 	]*[a-f0-9]+:[ 	]*f2 0f 01 d9[ 	]*vmgexit[ 	]*
 [ 	]*[a-f0-9]+:[ 	]*f3 0f 09[ 	]*wbnoinvd[ 	]*
 #pass
--- a/gas/testsuite/gas/i386/arch-13.s
+++ b/gas/testsuite/gas/i386/arch-13.s
@@ -40,6 +40,7 @@
 
 # vmgexit instruction
 	vmgexit
+	repne; vmmcall # vmgexit alternative encoding
 
 # wbnoinvd instruction
 	wbnoinvd