| Dan Gohman | d84ea47 | 2009-12-07 19:04:31 +0000 | [diff] [blame] | 1 | ; RUN: llc < %s -tailcallopt -march=x86-64 -post-RA-scheduler=true | FileCheck %s |
| Dan Gohman | 98ca4f2 | 2009-08-05 01:29:28 +0000 | [diff] [blame] | 2 | |
| Arnold Schwaighofer | d2ef523 | 2008-04-30 09:19:47 +0000 | [diff] [blame] | 3 | ; Check that lowered arguments on the stack do not overwrite each other. |
| Dan Gohman | 98ca4f2 | 2009-08-05 01:29:28 +0000 | [diff] [blame] | 4 | ; Add %in1 %p1 to a different temporary register (%eax). |
| Dan Gohman | 584fedf | 2010-06-21 22:17:20 +0000 | [diff] [blame^] | 5 | ; CHECK: movl 32(%rsp), %eax |
| Dan Gohman | 98ca4f2 | 2009-08-05 01:29:28 +0000 | [diff] [blame] | 6 | ; Move param %in1 to temp register (%r10d). |
| 7 | ; CHECK: movl 40(%rsp), %r10d |
| Dan Gohman | 584fedf | 2010-06-21 22:17:20 +0000 | [diff] [blame^] | 8 | ; Add %in1 %p1 to a different temporary register (%eax). |
| 9 | ; CHECK: addl %edi, %eax |
| Daniel Dunbar | 6242495 | 2009-11-13 01:01:58 +0000 | [diff] [blame] | 10 | ; Move param %in2 to stack. |
| 11 | ; CHECK: movl %r10d, 32(%rsp) |
| Dan Gohman | 10190cc | 2009-11-16 23:43:42 +0000 | [diff] [blame] | 12 | ; Move result of addition to stack. |
| 13 | ; CHECK: movl %eax, 40(%rsp) |
| Dan Gohman | 98ca4f2 | 2009-08-05 01:29:28 +0000 | [diff] [blame] | 14 | ; Eventually, do a TAILCALL |
| 15 | ; CHECK: TAILCALL |
| Arnold Schwaighofer | d2ef523 | 2008-04-30 09:19:47 +0000 | [diff] [blame] | 16 | |
| Evan Cheng | d36076e | 2009-10-18 19:57:27 +0000 | [diff] [blame] | 17 | declare fastcc i32 @tailcallee(i32 %p1, i32 %p2, i32 %p3, i32 %p4, i32 %p5, i32 %p6, i32 %a, i32 %b) nounwind |
| Arnold Schwaighofer | d2ef523 | 2008-04-30 09:19:47 +0000 | [diff] [blame] | 18 | |
| Evan Cheng | d36076e | 2009-10-18 19:57:27 +0000 | [diff] [blame] | 19 | define fastcc i32 @tailcaller(i32 %p1, i32 %p2, i32 %p3, i32 %p4, i32 %p5, i32 %p6, i32 %in1, i32 %in2) nounwind { |
| Arnold Schwaighofer | d2ef523 | 2008-04-30 09:19:47 +0000 | [diff] [blame] | 20 | entry: |
| 21 | %tmp = add i32 %in1, %p1 |
| Arnold Schwaighofer | bbd8c33 | 2009-06-12 16:26:57 +0000 | [diff] [blame] | 22 | %retval = tail call fastcc i32 @tailcallee(i32 %p1, i32 %p2, i32 %p3, i32 %p4, i32 %p5, i32 %p6, i32 %in2,i32 %tmp) |
| Arnold Schwaighofer | d2ef523 | 2008-04-30 09:19:47 +0000 | [diff] [blame] | 23 | ret i32 %retval |
| 24 | } |
| 25 | |