1 ; RUN: llc < %s -mtriple=i686-unknown-linux -tailcallopt -no-x86-call-frame-opt | FileCheck %s 2 ; Linux has 8 byte alignment so the params cause stack size 20 when tailcallopt 3 ; is enabled, ensure that a normal fastcc call has matching stack size 4 5 6 define fastcc i32 @tailcallee(i32 %a1, i32 %a2, i32 %a3, i32 %a4) { 7 ret i32 %a3 8 } 9 10 define fastcc i32 @tailcaller(i32 %in1, i32 %in2, i32 %in3, i32 %in4) { 11 %tmp11 = tail call fastcc i32 @tailcallee(i32 %in1, i32 %in2, 12 i32 %in1, i32 %in2) 13 ret i32 %tmp11 14 } 15 16 define i32 @main(i32 %argc, i8** %argv) { 17 %tmp1 = call fastcc i32 @tailcaller( i32 1, i32 2, i32 3, i32 4 ) 18 ; expect match subl [stacksize] here 19 ret i32 0 20 } 21 22 ; CHECK: calll tailcaller 23 ; CHECK-NEXT: subl $12 24
