| ; RUN: llc < %s -mcpu=generic -mtriple=x86_64-linux -post-RA-scheduler=true | FileCheck %s |
| ; RUN: llc < %s -mcpu=generic -mtriple=x86_64-win32 -post-RA-scheduler=true | FileCheck %s |
| |
| ; FIXME: Redundant unused stack allocation could be eliminated. |
| ; CHECK: subq ${{24|72|80}}, %rsp |
| |
| ; Check that lowered arguments on the stack do not overwrite each other. |
| ; Add %in1 %p1 to a different temporary register (%eax). |
| ; CHECK: movl [[A1:32|144]](%rsp), [[R1:%e..]] |
| ; Move param %in1 to temp register (%r10d). |
| ; CHECK: movl [[A2:40|152]](%rsp), [[R2:%[a-z0-9]+]] |
| ; Add %in1 %p1 to a different temporary register (%eax). |
| ; CHECK: addl {{%edi|%ecx}}, [[R1]] |
| ; Move param %in2 to stack. |
| ; CHECK-DAG: movl [[R2]], [[A1]](%rsp) |
| ; Move result of addition to stack. |
| ; CHECK-DAG: movl [[R1]], [[A2]](%rsp) |
| ; Eventually, do a TAILCALL |
| ; CHECK: TAILCALL |
| |
| declare tailcc i32 @tailcallee(i32 %p1, i32 %p2, i32 %p3, i32 %p4, i32 %p5, i32 %p6, i32 %a, i32 %b) nounwind |
| |
| define tailcc i32 @tailcaller(i32 %p1, i32 %p2, i32 %p3, i32 %p4, i32 %p5, i32 %p6, i32 %in1, i32 %in2) nounwind { |
| entry: |
| %tmp = add i32 %in1, %p1 |
| %retval = tail call tailcc i32 @tailcallee(i32 %p1, i32 %p2, i32 %p3, i32 %p4, i32 %p5, i32 %p6, i32 %in2,i32 %tmp) |
| ret i32 %retval |
| } |