1 ; RUN: opt < %s -O1 -S -loop-versioning-licm -licm 2>&1 | FileCheck %s
3 ; CHECK-LABEL: @without_metadata(
4 define i32 @without_metadata(i32* nocapture %var1, i32* nocapture readnone %var2, i32* nocapture %var3, i32 %itr) #0 {
6 %cmp14 = icmp eq i32 %itr, 0
7 br i1 %cmp14, label %for.end13, label %for.cond1.preheader.preheader
9 for.cond1.preheader.preheader: ; preds = %entry
10 br label %for.cond1.preheader
12 for.cond1.preheader: ; preds = %for.cond1.preheader.preheader, %for.inc11
13 %j.016 = phi i32 [ %j.1.lcssa, %for.inc11 ], [ 0, %for.cond1.preheader.preheader ]
14 %i.015 = phi i32 [ %inc12, %for.inc11 ], [ 0, %for.cond1.preheader.preheader ]
15 %cmp212 = icmp ult i32 %j.016, %itr
16 br i1 %cmp212, label %for.body3.lr.ph, label %for.inc11
18 for.body3.lr.ph: ; preds = %for.cond1.preheader
19 %add = add i32 %i.015, %itr
20 %idxprom6 = zext i32 %i.015 to i64
21 %arrayidx7 = getelementptr inbounds i32, i32* %var3, i64 %idxprom6
24 for.body3: ; preds = %for.body3.lr.ph, %for.body3
25 %j.113 = phi i32 [ %j.016, %for.body3.lr.ph ], [ %inc, %for.body3 ]
26 %idxprom = zext i32 %j.113 to i64
27 %arrayidx = getelementptr inbounds i32, i32* %var1, i64 %idxprom
28 ; CHECK: store i32 %add, i32* %arrayidx, align 4, !alias.scope {{.*}}, !noalias {{.*}}
29 store i32 %add, i32* %arrayidx, align 4
30 %0 = load i32, i32* %arrayidx7, align 4
31 %add8 = add nsw i32 %0, %add
32 store i32 %add8, i32* %arrayidx7, align 4
33 %inc = add nuw i32 %j.113, 1
34 %cmp2 = icmp ult i32 %inc, %itr
35 br i1 %cmp2, label %for.body3, label %for.inc11.loopexit
37 for.inc11.loopexit: ; preds = %for.body3
40 for.inc11: ; preds = %for.inc11.loopexit, %for.cond1.preheader
41 %j.1.lcssa = phi i32 [ %j.016, %for.cond1.preheader ], [ %itr, %for.inc11.loopexit ]
42 %inc12 = add nuw i32 %i.015, 1
43 %cmp = icmp ult i32 %inc12, %itr
44 br i1 %cmp, label %for.cond1.preheader, label %for.end13.loopexit
46 for.end13.loopexit: ; preds = %for.inc11
49 for.end13: ; preds = %for.end13.loopexit, %entry
53 ; CHECK-LABEL: @with_metadata(
54 define i32 @with_metadata(i32* nocapture %var1, i32* nocapture readnone %var2, i32* nocapture %var3, i32 %itr) #0 {
56 %cmp14 = icmp eq i32 %itr, 0
57 br i1 %cmp14, label %for.end13, label %for.cond1.preheader.preheader
59 for.cond1.preheader.preheader: ; preds = %entry
60 br label %for.cond1.preheader
62 for.cond1.preheader: ; preds = %for.cond1.preheader.preheader, %for.inc11
63 %j.016 = phi i32 [ %j.1.lcssa, %for.inc11 ], [ 0, %for.cond1.preheader.preheader ]
64 %i.015 = phi i32 [ %inc12, %for.inc11 ], [ 0, %for.cond1.preheader.preheader ]
65 %cmp212 = icmp ult i32 %j.016, %itr
66 br i1 %cmp212, label %for.body3.lr.ph, label %for.inc11
68 for.body3.lr.ph: ; preds = %for.cond1.preheader
69 %add = add i32 %i.015, %itr
70 %idxprom6 = zext i32 %i.015 to i64
71 %arrayidx7 = getelementptr inbounds i32, i32* %var3, i64 %idxprom6
74 for.body3: ; preds = %for.body3.lr.ph, %for.body3
75 %j.113 = phi i32 [ %j.016, %for.body3.lr.ph ], [ %inc, %for.body3 ]
76 %idxprom = zext i32 %j.113 to i64
77 %arrayidx = getelementptr inbounds i32, i32* %var1, i64 %idxprom
78 ; CHECK-NOT: store i32 %add, i32* %arrayidx, align 4, !alias.scope {{.*}}, !noalias {{.*}}
79 store i32 %add, i32* %arrayidx, align 4
80 %0 = load i32, i32* %arrayidx7, align 4
81 %add8 = add nsw i32 %0, %add
82 store i32 %add8, i32* %arrayidx7, align 4
83 %inc = add nuw i32 %j.113, 1
84 %cmp2 = icmp ult i32 %inc, %itr
85 br i1 %cmp2, label %for.body3, label %for.inc11.loopexit, !llvm.loop !0
87 for.inc11.loopexit: ; preds = %for.body3
90 for.inc11: ; preds = %for.inc11.loopexit, %for.cond1.preheader
91 %j.1.lcssa = phi i32 [ %j.016, %for.cond1.preheader ], [ %itr, %for.inc11.loopexit ]
92 %inc12 = add nuw i32 %i.015, 1
93 %cmp = icmp ult i32 %inc12, %itr
94 br i1 %cmp, label %for.cond1.preheader, label %for.end13.loopexit
96 for.end13.loopexit: ; preds = %for.inc11
99 for.end13: ; preds = %for.end13.loopexit, %entry
103 !0 = distinct !{!0, !1}
104 !1 = !{!"llvm.loop.licm_versioning.disable"}