|  | ; RUN: llc -mtriple=x86_64-- -no-integrated-as < %s | FileCheck %s | 
|  | ; PR3701 | 
|  |  | 
|  | define i64 @t(i64* %arg) nounwind { | 
|  | br i1 true, label %1, label %5 | 
|  |  | 
|  | ; <label>:1             ; preds = %0 | 
|  | %2 = icmp eq i64* null, %arg            ; <i1> [#uses=1] | 
|  | %3 = tail call i64* asm sideeffect "movl %fs:0,$0", "=r,~{dirflag},~{fpsr},~{flags}"() nounwind         ; <%struct.thread*> [#uses=0] | 
|  | ; CHECK: test | 
|  | ; CHECK-NEXT: j | 
|  | br i1 %2, label %4, label %5 | 
|  |  | 
|  | ; <label>:4             ; preds = %1 | 
|  | ret i64 1 | 
|  |  | 
|  | ; <label>:5             ; preds = %1 | 
|  | ret i64 0 | 
|  | } | 
|  |  | 
|  | ; Make sure that we translate this to the bswap intrinsic which lowers down without the | 
|  | ; inline assembly. | 
|  | ; CHECK-NOT: #APP | 
|  | define i32 @s(i32 %argc, i8** nocapture %argv) unnamed_addr nounwind { | 
|  | entry: | 
|  | %0 = trunc i32 %argc to i16 | 
|  | %asmtmp = tail call i16 asm "rorw $$8, ${0:w}", "=r,0,~{fpsr},~{flags},~{cc}"(i16 %0) nounwind, !srcloc !0 | 
|  | %1 = zext i16 %asmtmp to i32 | 
|  | ret i32 %1 | 
|  | } | 
|  |  | 
|  | !0 = !{i64 935930} |