--- /dev/null
+// RUN: %llvmgcc %s -c -O3 -m64 -emit-llvm -o - | llc -march=x86-64 -mtriple=x86_64-apple-darwin | FileCheck %s
+// XFAIL: *
+// XTARGET: x86,i386,i686
+// r9 used to be clobbered before its value was moved to r10. 7993104.
+
+void foo(int x, int y) {
+// CHECK: bar
+// CHECK: movq %r9, %r10
+// CHECK: movq %rdi, %r9
+// CHECK: bar
+ register int lr9 asm("r9") = x;
+ register int lr10 asm("r10") = y;
+ int foo;
+ asm volatile("bar" : "=r"(lr9) : "r"(lr9), "r"(lr10));
+ foo = lr9;
+ lr9 = x;
+ lr10 = foo;
+ asm volatile("bar" : "=r"(lr9) : "r"(lr9), "r"(lr10));
+}
\ No newline at end of file