1 ; Base should not be i*3, it should be i*2. 2 ; RUN: opt < %s -loop-reduce -S | \ 3 ; RUN: not grep {mul.*%i, 3} 4 5 ; Indvar should not start at zero: 6 ; RUN: opt < %s -loop-reduce -S | \ 7 ; RUN: not grep {phi i32 .* 0} 8 ; END. 9 10 ; mul uint %i, 3 11 12 target datalayout = "e-p:32:32-n32" 13 target triple = "i686-apple-darwin8" 14 @flags2 = external global [8193 x i8], align 32 ; <[8193 x i8]*> [#uses=1] 15 16 define void @foo(i32 %k, i32 %i.s) { 17 entry: 18 %i = bitcast i32 %i.s to i32 ; <i32> [#uses=2] 19 %k_addr.012 = shl i32 %i.s, 1 ; <i32> [#uses=1] 20 %tmp14 = icmp sgt i32 %k_addr.012, 8192 ; <i1> [#uses=1] 21 br i1 %tmp14, label %return, label %bb.preheader 22 bb.preheader: ; preds = %entry 23 %tmp. = shl i32 %i, 1 ; <i32> [#uses=1] 24 br label %bb 25 bb: ; preds = %bb, %bb.preheader 26 %indvar = phi i32 [ %indvar.next, %bb ], [ 0, %bb.preheader ] ; <i32> [#uses=2] 27 %tmp.15 = mul i32 %indvar, %i ; <i32> [#uses=1] 28 %tmp.16 = add i32 %tmp.15, %tmp. ; <i32> [#uses=2] 29 %k_addr.0.0 = bitcast i32 %tmp.16 to i32 ; <i32> [#uses=1] 30 %gep.upgrd.1 = zext i32 %tmp.16 to i64 ; <i64> [#uses=1] 31 %tmp = getelementptr [8193 x i8]* @flags2, i32 0, i64 %gep.upgrd.1 ; <i8*> [#uses=1] 32 store i8 0, i8* %tmp 33 %k_addr.0 = add i32 %k_addr.0.0, %i.s ; <i32> [#uses=1] 34 %tmp.upgrd.2 = icmp sgt i32 %k_addr.0, 8192 ; <i1> [#uses=1] 35 %indvar.next = add i32 %indvar, 1 ; <i32> [#uses=1] 36 br i1 %tmp.upgrd.2, label %return.loopexit, label %bb 37 return.loopexit: ; preds = %bb 38 br label %return 39 return: ; preds = %return.loopexit, %entry 40 ret void 41 } 42
