|  | ; RUN: opt -hexagon-loop-idiom -mtriple hexagon-unknown-elf < %s | 
|  | ; RUN: opt -p hexagon-loop-idiom -mtriple hexagon-unknown-elf < %s | 
|  | ; REQUIRES: asserts | 
|  |  | 
|  | target triple = "hexagon" | 
|  |  | 
|  | ; Function Attrs: nounwind | 
|  | define void @fred(i8 zeroext %L) #0 { | 
|  | entry: | 
|  | br i1 undef, label %if.end53, label %while.body37 | 
|  |  | 
|  | while.body37:                                     ; preds = %while.body37, %entry | 
|  | %i.121 = phi i32 [ %inc46, %while.body37 ], [ 0, %entry ] | 
|  | %shl = shl i32 1, %i.121 | 
|  | %and39 = and i32 %shl, undef | 
|  | %tobool40 = icmp eq i32 %and39, 0 | 
|  | %inc46 = add nuw nsw i32 %i.121, 1 | 
|  | %storemerge = select i1 %tobool40, i8 %L, i8 0 | 
|  | br i1 undef, label %while.body37, label %if.end53 | 
|  |  | 
|  | if.end53:                                         ; preds = %while.body37, %entry | 
|  | ret void | 
|  | } | 
|  |  | 
|  | attributes #0 = { nounwind } |