|  | ; RUN: llc < %s -tailcallopt -march=x86-64 -mattr=+sse2 -mtriple=x86_64-apple-darwin | grep fstpt | 
|  | ; RUN: llc < %s -tailcallopt -march=x86-64 -mattr=+sse2 -mtriple=x86_64-apple-darwin | grep xmm | 
|  |  | 
|  | ; Check that x86-64 tail calls support x86_fp80 and v2f32 types. (Tail call | 
|  | ; calling convention out of sync with standard c calling convention on x86_64) | 
|  | ; Bug 4278. | 
|  |  | 
|  | declare fastcc double @tailcallee(x86_fp80, <2 x float>) | 
|  |  | 
|  | define fastcc double @tailcall() { | 
|  | entry: | 
|  | %tmp = fpext float 1.000000e+00 to x86_fp80 | 
|  | %tmp2 = tail call fastcc double @tailcallee( x86_fp80 %tmp,  <2 x float> <float 1.000000e+00, float 1.000000e+00>) | 
|  | ret double %tmp2 | 
|  | } |