1 ; RUN: llc < %s -mtriple=i686-apple-darwin -relocation-model=static | FileCheck %s -check-prefix=STATIC 2 ; RUN: llc < %s -mtriple=i686-apple-darwin -relocation-model=pic | FileCheck %s -check-prefix=PIC 3 4 ; By starting the IV at -64 instead of 0, a cmp is eliminated, 5 ; as the flags from the add can be used directly. 6 7 ; STATIC: movl $-64, [[EAX:%e..]] 8 9 ; STATIC: movl %{{.+}}, _state+76([[EAX]]) 10 ; STATIC: addl $16, [[EAX]] 11 ; STATIC: jne 12 13 ; The same for PIC mode. 14 15 ; PIC: movl $-64, [[EAX:%e..]] 16 17 ; PIC: movl %{{.+}}, 76(%{{.+}},[[EAX]]) 18 ; PIC: addl $16, [[EAX]] 19 ; PIC: jne 20 21 @state = external global [0 x i32] ; <[0 x i32]*> [#uses=4] 22 @S = external global [0 x i32] ; <[0 x i32]*> [#uses=4] 23 24 define i32 @foo() nounwind { 25 entry: 26 br label %bb 27 28 bb: ; preds = %bb, %entry 29 %indvar = phi i32 [ 0, %entry ], [ %indvar.next, %bb ] ; <i32> [#uses=2] 30 %t.063.0 = phi i32 [ 0, %entry ], [ %tmp47, %bb ] ; <i32> [#uses=1] 31 %j.065.0 = shl i32 %indvar, 2 ; <i32> [#uses=4] 32 %tmp3 = getelementptr [0 x i32], [0 x i32]* @state, i32 0, i32 %j.065.0 ; <i32*> [#uses=2] 33 %tmp4 = load i32, i32* %tmp3, align 4 ; <i32> [#uses=1] 34 %tmp6 = getelementptr [0 x i32], [0 x i32]* @S, i32 0, i32 %t.063.0 ; <i32*> [#uses=1] 35 %tmp7 = load i32, i32* %tmp6, align 4 ; <i32> [#uses=1] 36 %tmp8 = xor i32 %tmp7, %tmp4 ; <i32> [#uses=2] 37 store i32 %tmp8, i32* %tmp3, align 4 38 %tmp1378 = or i32 %j.065.0, 1 ; <i32> [#uses=1] 39 %tmp16 = getelementptr [0 x i32], [0 x i32]* @state, i32 0, i32 %tmp1378 ; <i32*> [#uses=2] 40 %tmp17 = load i32, i32* %tmp16, align 4 ; <i32> [#uses=1] 41 %tmp19 = getelementptr [0 x i32], [0 x i32]* @S, i32 0, i32 %tmp8 ; <i32*> [#uses=1] 42 %tmp20 = load i32, i32* %tmp19, align 4 ; <i32> [#uses=1] 43 %tmp21 = xor i32 %tmp20, %tmp17 ; <i32> [#uses=2] 44 store i32 %tmp21, i32* %tmp16, align 4 45 %tmp2680 = or i32 %j.065.0, 2 ; <i32> [#uses=1] 46 %tmp29 = getelementptr [0 x i32], [0 x i32]* @state, i32 0, i32 %tmp2680 ; <i32*> [#uses=2] 47 %tmp30 = load i32, i32* %tmp29, align 4 ; <i32> [#uses=1] 48 %tmp32 = getelementptr [0 x i32], [0 x i32]* @S, i32 0, i32 %tmp21 ; <i32*> [#uses=1] 49 %tmp33 = load i32, i32* %tmp32, align 4 ; <i32> [#uses=1] 50 %tmp34 = xor i32 %tmp33, %tmp30 ; <i32> [#uses=2] 51 store i32 %tmp34, i32* %tmp29, align 4 52 %tmp3982 = or i32 %j.065.0, 3 ; <i32> [#uses=1] 53 %tmp42 = getelementptr [0 x i32], [0 x i32]* @state, i32 0, i32 %tmp3982 ; <i32*> [#uses=2] 54 %tmp43 = load i32, i32* %tmp42, align 4 ; <i32> [#uses=1] 55 %tmp45 = getelementptr [0 x i32], [0 x i32]* @S, i32 0, i32 %tmp34 ; <i32*> [#uses=1] 56 %tmp46 = load i32, i32* %tmp45, align 4 ; <i32> [#uses=1] 57 %tmp47 = xor i32 %tmp46, %tmp43 ; <i32> [#uses=3] 58 store i32 %tmp47, i32* %tmp42, align 4 59 %indvar.next = add i32 %indvar, 1 ; <i32> [#uses=2] 60 %exitcond = icmp eq i32 %indvar.next, 4 ; <i1> [#uses=1] 61 br i1 %exitcond, label %bb57, label %bb 62 63 bb57: ; preds = %bb 64 %tmp59 = and i32 %tmp47, 255 ; <i32> [#uses=1] 65 ret i32 %tmp59 66 } 67
