1 ; RUN: opt %loadPolly -polly-detect -polly-process-unprofitable=false -analyze \
2 ; RUN: -polly-allow-nonaffine-loops < %s | FileCheck %s
4 ; Even if we allow non-affine loops we can only model the outermost loop, all
5 ; other loops are boxed in non-affine regions. However, the inner loops can be
6 ; distributed as black-boxes, thus we will recognize the outer loop as profitable.
8 ; CHECK: Valid Region for Scop: for.cond => for.end.51
11 ; for (int i = 0; i < 100; i++) {
13 ; for (int j = 0; j < i * i; j++)
14 ; for (int k = 0; k < i; k++)
17 ; for (int j = 0; j < i * i; j++)
19 ; for (int k = 0; k < j; k++)
23 ; for (int j = 0; j < 100; j++)
24 ; for (int k = 0; k < j * j; k++)
29 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
31 define void @f(i32* %A) {
35 for.cond: ; preds = %for.inc.49, %entry
36 %indvars.iv5 = phi i64 [ %indvars.iv.next6, %for.inc.49 ], [ 0, %entry ]
37 %indvars.iv = phi i32 [ %indvars.iv.next, %for.inc.49 ], [ 0, %entry ]
38 %exitcond9 = icmp ne i64 %indvars.iv5, 100
39 br i1 %exitcond9, label %for.body, label %for.end.51
41 for.body: ; preds = %for.cond
44 for.cond.1: ; preds = %for.inc.8, %for.body
45 %j.0 = phi i32 [ 0, %for.body ], [ %inc9, %for.inc.8 ]
46 %tmp = mul nsw i64 %indvars.iv5, %indvars.iv5
47 %tmp10 = sext i32 %j.0 to i64
48 %cmp2 = icmp slt i64 %tmp10, %tmp
49 br i1 %cmp2, label %for.body.3, label %for.end.10
51 for.body.3: ; preds = %for.cond.1
54 for.cond.4: ; preds = %for.inc, %for.body.3
55 %k.0 = phi i32 [ 0, %for.body.3 ], [ %inc7, %for.inc ]
56 %exitcond = icmp ne i32 %k.0, %indvars.iv
57 br i1 %exitcond, label %for.body.6, label %for.end
59 for.body.6: ; preds = %for.cond.4
60 %arrayidx = getelementptr inbounds i32, i32* %A, i64 %indvars.iv5
61 %tmp11 = load i32, i32* %arrayidx, align 4
62 %inc = add nsw i32 %tmp11, 1
63 store i32 %inc, i32* %arrayidx, align 4
66 for.inc: ; preds = %for.body.6
67 %inc7 = add nuw nsw i32 %k.0, 1
70 for.end: ; preds = %for.cond.4
73 for.inc.8: ; preds = %for.end
74 %inc9 = add nuw nsw i32 %j.0, 1
77 for.end.10: ; preds = %for.cond.1
80 for.cond.12: ; preds = %for.inc.26, %for.end.10
81 %indvars.iv1 = phi i32 [ %indvars.iv.next2, %for.inc.26 ], [ 0, %for.end.10 ]
82 %tmp12 = mul nsw i64 %indvars.iv5, %indvars.iv5
83 %tmp13 = sext i32 %indvars.iv1 to i64
84 %cmp14 = icmp slt i64 %tmp13, %tmp12
85 br i1 %cmp14, label %for.body.15, label %for.end.28
87 for.body.15: ; preds = %for.cond.12
90 for.cond.17: ; preds = %for.inc.23, %for.body.15
91 %k16.0 = phi i32 [ 0, %for.body.15 ], [ %inc24, %for.inc.23 ]
92 %exitcond3 = icmp ne i32 %k16.0, %indvars.iv1
93 br i1 %exitcond3, label %for.body.19, label %for.end.25
95 for.body.19: ; preds = %for.cond.17
96 %arrayidx21 = getelementptr inbounds i32, i32* %A, i64 %indvars.iv5
97 %tmp14 = load i32, i32* %arrayidx21, align 4
98 %inc22 = add nsw i32 %tmp14, 1
99 store i32 %inc22, i32* %arrayidx21, align 4
102 for.inc.23: ; preds = %for.body.19
103 %inc24 = add nuw nsw i32 %k16.0, 1
104 br label %for.cond.17
106 for.end.25: ; preds = %for.cond.17
109 for.inc.26: ; preds = %for.end.25
110 %indvars.iv.next2 = add nuw nsw i32 %indvars.iv1, 1
111 br label %for.cond.12
113 for.end.28: ; preds = %for.cond.12
114 %arrayidx30 = getelementptr inbounds i32, i32* %A, i64 %indvars.iv5
115 %tmp15 = load i32, i32* %arrayidx30, align 4
116 %tobool = icmp eq i32 %tmp15, 0
117 br i1 %tobool, label %if.end, label %if.then
119 if.then: ; preds = %for.end.28
120 br label %for.cond.32
122 for.cond.32: ; preds = %for.inc.46, %if.then
123 %j31.0 = phi i32 [ 0, %if.then ], [ %inc47, %for.inc.46 ]
124 %exitcond4 = icmp ne i32 %j31.0, 100
125 br i1 %exitcond4, label %for.body.34, label %for.end.48
127 for.body.34: ; preds = %for.cond.32
128 br label %for.cond.36
130 for.cond.36: ; preds = %for.inc.43, %for.body.34
131 %k35.0 = phi i32 [ 0, %for.body.34 ], [ %inc44, %for.inc.43 ]
132 %mul37 = mul nsw i32 %j31.0, %j31.0
133 %cmp38 = icmp slt i32 %k35.0, %mul37
134 br i1 %cmp38, label %for.body.39, label %for.end.45
136 for.body.39: ; preds = %for.cond.36
137 %arrayidx41 = getelementptr inbounds i32, i32* %A, i64 %indvars.iv5
138 %tmp16 = load i32, i32* %arrayidx41, align 4
139 %inc42 = add nsw i32 %tmp16, 1
140 store i32 %inc42, i32* %arrayidx41, align 4
143 for.inc.43: ; preds = %for.body.39
144 %inc44 = add nuw nsw i32 %k35.0, 1
145 br label %for.cond.36
147 for.end.45: ; preds = %for.cond.36
150 for.inc.46: ; preds = %for.end.45
151 %inc47 = add nuw nsw i32 %j31.0, 1
152 br label %for.cond.32
154 for.end.48: ; preds = %for.cond.32
157 if.end: ; preds = %for.end.28, %for.end.48
160 for.inc.49: ; preds = %if.end
161 %indvars.iv.next6 = add nuw nsw i64 %indvars.iv5, 1
162 %indvars.iv.next = add nuw nsw i32 %indvars.iv, 1
165 for.end.51: ; preds = %for.cond