diff --git a/test/CodeGen/X86/2006-07-10-InlineAsmAConstraint.ll b/test/CodeGen/X86/2006-07-10-InlineAsmAConstraint.ll
new file mode 100644
index 00000000000..b1290b186da
--- /dev/null
+++ b/test/CodeGen/X86/2006-07-10-InlineAsmAConstraint.ll
@@ -0,0 +1,7 @@
+; RUN: llvm-as < %s | llc -march=x86
+; PR825
+
+long %test() {
+	%tmp.i5 = call long asm sideeffect "rdtsc", "=A,~{dirflag},~{fpsr},~{flags}"( )		; <long> [#uses=0]
+	ret long %tmp.i5
+}