1 ; This testcase comes from this C fragment:
3 ; void test(unsigned Num, int *Array) {
6 ; for (i = 0; i != Num; ++i)
7 ; for (j = 0; j != Num; ++j)
8 ; for (k = 0; k != Num; ++k)
9 ; printf("%d\n", i+k+j); /* Reassociate to (i+j)+k */
12 ; In this case, we want to reassociate the specified expr so that i+j can be
13 ; hoisted out of the inner most loop.
15 ; RUN: llvm-upgrade < %s | llvm-as | opt -reassociate | llvm-dis | grep 115 | not grep 117
17 %.LC0 = internal global [4 x sbyte] c"%d\0A\00" ; <[4 x sbyte]*> [#uses=1]
19 declare int "printf"(sbyte*, ...)
21 void "test"(uint %Num, int* %Array) {
23 %cond221 = seteq uint 0, %Num ; <bool> [#uses=3]
24 br bool %cond221, label %bb7, label %bb2
27 %reg115 = phi uint [ %reg120, %bb6 ], [ 0, %bb0 ] ; <uint> [#uses=2]
28 br bool %cond221, label %bb6, label %bb3
31 %reg116 = phi uint [ %reg119, %bb5 ], [ 0, %bb2 ] ; <uint> [#uses=2]
32 br bool %cond221, label %bb5, label %bb4
35 %reg117 = phi uint [ %reg118, %bb4 ], [ 0, %bb3 ] ; <uint> [#uses=2]
36 %reg113 = add uint %reg115, %reg117 ; <uint> [#uses=1]
37 %reg114 = add uint %reg113, %reg116 ; <uint> [#uses=1]
38 %cast227 = getelementptr [4 x sbyte]* %.LC0, long 0, long 0 ; <sbyte*> [#uses=1]
39 call int (sbyte*, ...)* %printf( sbyte* %cast227, uint %reg114 ) ; <int>:0 [#uses=0]
40 %reg118 = add uint %reg117, 1 ; <uint> [#uses=2]
41 %cond224 = setne uint %reg118, %Num ; <bool> [#uses=1]
42 br bool %cond224, label %bb4, label %bb5
45 %reg119 = add uint %reg116, 1 ; <uint> [#uses=2]
46 %cond225 = setne uint %reg119, %Num ; <bool> [#uses=1]
47 br bool %cond225, label %bb3, label %bb6
50 %reg120 = add uint %reg115, 1 ; <uint> [#uses=2]
51 %cond226 = setne uint %reg120, %Num ; <bool> [#uses=1]
52 br bool %cond226, label %bb2, label %bb7