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      1 ; RUN: opt < %s -loop-reduce -S | grep mul | count 1
      2 ; LSR should not make two copies of the Q*L expression in the preheader!
      3 
      4 define i8 @test(i8* %A, i8* %B, i32 %L, i32 %Q, i32 %N.s) {
      5 entry:
      6 	%tmp.6 = mul i32 %Q, %L		; <i32> [#uses=1]
      7 	%N = bitcast i32 %N.s to i32		; <i32> [#uses=1]
      8 	br label %no_exit
      9 no_exit:		; preds = %no_exit, %entry
     10 	%indvar.ui = phi i32 [ 0, %entry ], [ %indvar.next, %no_exit ]		; <i32> [#uses=2]
     11 	%Sum.0.0 = phi i8 [ 0, %entry ], [ %tmp.21, %no_exit ]		; <i8> [#uses=1]
     12 	%indvar = bitcast i32 %indvar.ui to i32		; <i32> [#uses=1]
     13 	%N_addr.0.0 = sub i32 %N.s, %indvar		; <i32> [#uses=1]
     14 	%tmp.8 = add i32 %N_addr.0.0, %tmp.6		; <i32> [#uses=2]
     15 	%tmp.9 = getelementptr i8* %A, i32 %tmp.8		; <i8*> [#uses=1]
     16 	%tmp.10 = load i8* %tmp.9		; <i8> [#uses=1]
     17 	%tmp.17 = getelementptr i8* %B, i32 %tmp.8		; <i8*> [#uses=1]
     18 	%tmp.18 = load i8* %tmp.17		; <i8> [#uses=1]
     19 	%tmp.19 = sub i8 %tmp.10, %tmp.18		; <i8> [#uses=1]
     20 	%tmp.21 = add i8 %tmp.19, %Sum.0.0		; <i8> [#uses=2]
     21 	%indvar.next = add i32 %indvar.ui, 1		; <i32> [#uses=2]
     22 	%exitcond = icmp eq i32 %indvar.next, %N		; <i1> [#uses=1]
     23 	br i1 %exitcond, label %loopexit, label %no_exit
     24 loopexit:		; preds = %no_exit
     25 	ret i8 %tmp.21
     26 }
     27 
     28