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-rw-r--r--test/MC/X86/index-operations.s20
1 files changed, 20 insertions, 0 deletions
diff --git a/test/MC/X86/index-operations.s b/test/MC/X86/index-operations.s
index ffad9596c8..f1ccfe817c 100644
--- a/test/MC/X86/index-operations.s
+++ b/test/MC/X86/index-operations.s
@@ -74,3 +74,23 @@ stos %rax, (%edi)
// 64: stosq %rax, %es:(%edi) # encoding: [0x48,0x67,0xab]
// ERR32: only available in 64-bit mode
// ERR16: only available in 64-bit mode
+
+scas %es:(%edi), %al
+// 64: scasb %es:(%edi), %al # encoding: [0x67,0xae]
+// 32: scasb %es:(%edi), %al # encoding: [0xae]
+// 16: scasb %es:(%edi), %al # encoding: [0x67,0xae]
+
+scasq %es:(%edi)
+// 64: scasq %es:(%edi), %rax # encoding: [0x48,0x67,0xaf]
+// ERR32: 64-bit
+// ERR16: 64-bit
+
+scasl %es:(%edi), %al
+// ERR64: invalid operand
+// ERR32: invalid operand
+// ERR16: invalid operand
+
+scas %es:(%di), %ax
+// ERR64: invalid 16-bit base register
+// 16: scasw %es:(%di), %ax # encoding: [0xaf]
+// 32: scasw %es:(%di), %ax # encoding: [0x66,0x67,0xaf]