1 ; RUN: llc -march=x86-64 < %s | FileCheck %s 2 ; PR3701 3 4 define i64 @t(i64* %arg) nounwind { 5 br i1 true, label %1, label %5 6 7 ; <label>:1 ; preds = %0 8 %2 = icmp eq i64* null, %arg ; <i1> [#uses=1] 9 %3 = tail call i64* asm sideeffect "movl %fs:0,$0", "=r,~{dirflag},~{fpsr},~{flags}"() nounwind ; <%struct.thread*> [#uses=0] 10 ; CHECK: test 11 ; CHECK-NEXT: j 12 br i1 %2, label %4, label %5 13 14 ; <label>:4 ; preds = %1 15 ret i64 1 16 17 ; <label>:5 ; preds = %1 18 ret i64 0 19 } 20
