| Arnold Schwaighofer | fda6f1a | 2008-04-30 09:19:47 +0000 | [diff] [blame^] | 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, %r9d} |
| 7 | ; RUN: llvm-as < %s | llc -tailcallopt -march=x86-64 -x86-asm-syntax=att | grep {addl 32(%rsp), %r9d} |
| 8 | ; Move result of addition to stack. |
| 9 | ; RUN: llvm-as < %s | llc -tailcallopt -march=x86-64 -x86-asm-syntax=att | grep {movl %r9d, 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 | |
| 13 | declare fastcc i32 @tailcallee(i32 %p1, i32 %p2, i32 %p3, i32 %p4, i32 %p5, i32 %a, i32 %b) |
| 14 | |
| 15 | define fastcc i32 @tailcaller(i32 %p1, i32 %p2, i32 %p3, i32 %p4, i32 %p5, i32 %in1, i32 %in2) { |
| 16 | entry: |
| 17 | %tmp = add i32 %in1, %p1 |
| 18 | %retval = tail call fastcc i32 @tailcallee(i32 %p1, i32 %p2, i32 %p3, i32 %p4, i32 %p5, i32 %in2,i32 %tmp) |
| 19 | ret i32 %retval |
| 20 | } |
| 21 | |