1; RUN: llvm-upgrade < %s | llvm-as | opt -loop-reduce | llvm-dis | grep mul | count 1
2; LSR should not make two copies of the Q*L expression in the preheader!
3
4sbyte %test(sbyte* %A, sbyte* %B, int %L, int %Q, int %N.s) {
5entry:
6	%tmp.6 = mul int %Q, %L		; <int> [#uses=1]
7	%N = cast int %N.s to uint		; <uint> [#uses=1]
8	br label %no_exit
9
10no_exit:		; preds = %no_exit, %no_exit.preheader
11	%indvar.ui = phi uint [ 0, %entry], [ %indvar.next, %no_exit ]		; <uint> [#uses=2]
12	%Sum.0.0 = phi sbyte [ 0, %entry], [ %tmp.21, %no_exit ]		; <sbyte> [#uses=1]
13	%indvar = cast uint %indvar.ui to int		; <int> [#uses=1]
14	%N_addr.0.0 = sub int %N.s, %indvar		; <int> [#uses=1]
15	%tmp.8 = add int %N_addr.0.0, %tmp.6		; <int> [#uses=2]
16	%tmp.9 = getelementptr sbyte* %A, int %tmp.8		; <sbyte*> [#uses=1]
17	%tmp.10 = load sbyte* %tmp.9		; <sbyte> [#uses=1]
18	%tmp.17 = getelementptr sbyte* %B, int %tmp.8		; <sbyte*> [#uses=1]
19	%tmp.18 = load sbyte* %tmp.17		; <sbyte> [#uses=1]
20	%tmp.19 = sub sbyte %tmp.10, %tmp.18		; <sbyte> [#uses=1]
21	%tmp.21 = add sbyte %tmp.19, %Sum.0.0		; <sbyte> [#uses=2]
22	%indvar.next = add uint %indvar.ui, 1		; <uint> [#uses=2]
23	%exitcond = seteq uint %indvar.next, %N		; <bool> [#uses=1]
24	br bool %exitcond, label %loopexit, label %no_exit
25
26loopexit:
27	ret sbyte %tmp.21
28}
29