1; RUN: llvm-as < %s | llc -tailcallopt -march=x86-64 | grep TAILCALL 2; Check that lowered arguments on the stack do not overwrite each other. 3; Move param %in1 to temp register (%eax). 4; RUN: llvm-as < %s | llc -tailcallopt -march=x86-64 -x86-asm-syntax=att | grep {movl 40(%rsp), %eax} 5; Add %in1 %p1 to another temporary register (%r9d). 6; RUN: llvm-as < %s | llc -tailcallopt -march=x86-64 -x86-asm-syntax=att | grep {movl %edi, %r10d} 7; RUN: llvm-as < %s | llc -tailcallopt -march=x86-64 -x86-asm-syntax=att | grep {addl 32(%rsp), %r10d} 8; Move result of addition to stack. 9; RUN: llvm-as < %s | llc -tailcallopt -march=x86-64 -x86-asm-syntax=att | grep {movl %r10d, 40(%rsp)} 10; Move param %in2 to stack. 11; RUN: llvm-as < %s | llc -tailcallopt -march=x86-64 -x86-asm-syntax=att | grep {movl %eax, 32(%rsp)} 12 13declare fastcc i32 @tailcallee(i32 %p1, i32 %p2, i32 %p3, i32 %p4, i32 %p5, i32 %p6, i32 %a, i32 %b) 14 15define fastcc i32 @tailcaller(i32 %p1, i32 %p2, i32 %p3, i32 %p4, i32 %p5, i32 %p6, i32 %in1, i32 %in2) { 16entry: 17 %tmp = add i32 %in1, %p1 18 %retval = tail call fastcc i32 @tailcallee(i32 %p1, i32 %p2, i32 %p3, i32 %p4, i32 %p5, i32 %p6, i32 %in2,i32 %tmp) 19 ret i32 %retval 20} 21 22