1 ; RUN: opt %loadPolly -basic-aa -polly-print-scops -disable-output < %s \
2 ; RUN: -polly-precise-inbounds | FileCheck %s
4 ; void foo(float A[restrict][20], float B[restrict][20], long n, long m,
6 ; for (long i = 0; i < n; i++)
7 ; for (long j = 0; j < m; j++)
9 ; for (long i = 0; i < m; i++)
10 ; for (long j = 0; j < p; j++)
14 ; This code is within bounds either if m and p are smaller than the array sizes,
15 ; but also if only p is smaller than the size of the second B dimension and n
16 ; is such that the first loop is never executed and consequently A is never
17 ; accessed. In this case the value of m does not matter.
19 ; CHECK: Assumed Context:
20 ; CHECK-NEXT: [n, m, p] -> { : p <= 20 and (n <= 0 or (n > 0 and m <= 20)) }
22 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
24 define void @foo(ptr noalias %A, ptr noalias %B, i64 %n, i64 %m, i64 %p) {
28 for.cond: ; preds = %for.inc5, %entry
29 %i.0 = phi i64 [ 0, %entry ], [ %inc6, %for.inc5 ]
30 %cmp = icmp slt i64 %i.0, %n
31 br i1 %cmp, label %for.body, label %for.end7
33 for.body: ; preds = %for.cond
36 for.cond1: ; preds = %for.inc, %for.body
37 %j.0 = phi i64 [ 0, %for.body ], [ %inc, %for.inc ]
38 %cmp2 = icmp slt i64 %j.0, %m
39 br i1 %cmp2, label %for.body3, label %for.end
41 for.body3: ; preds = %for.cond1
42 %add = add nsw i64 %i.0, %j.0
43 %conv = sitofp i64 %add to float
44 %arrayidx4 = getelementptr inbounds [20 x float], ptr %A, i64 %i.0, i64 %j.0
45 store float %conv, ptr %arrayidx4, align 4
48 for.inc: ; preds = %for.body3
49 %inc = add nsw i64 %j.0, 1
52 for.end: ; preds = %for.cond1
55 for.inc5: ; preds = %for.end
56 %inc6 = add nsw i64 %i.0, 1
59 for.end7: ; preds = %for.cond
62 for.cond9: ; preds = %for.inc25, %for.end7
63 %i8.0 = phi i64 [ 0, %for.end7 ], [ %inc26, %for.inc25 ]
64 %cmp10 = icmp slt i64 %i8.0, %m
65 br i1 %cmp10, label %for.body12, label %for.end27
67 for.body12: ; preds = %for.cond9
70 for.cond14: ; preds = %for.inc22, %for.body12
71 %j13.0 = phi i64 [ 0, %for.body12 ], [ %inc23, %for.inc22 ]
72 %cmp15 = icmp slt i64 %j13.0, %p
73 br i1 %cmp15, label %for.body17, label %for.end24
75 for.body17: ; preds = %for.cond14
76 %add18 = add nsw i64 %i8.0, %j13.0
77 %conv19 = sitofp i64 %add18 to float
78 %arrayidx21 = getelementptr inbounds [20 x float], ptr %B, i64 %i8.0, i64 %j13.0
79 store float %conv19, ptr %arrayidx21, align 4
82 for.inc22: ; preds = %for.body17
83 %inc23 = add nsw i64 %j13.0, 1
86 for.end24: ; preds = %for.cond14
89 for.inc25: ; preds = %for.end24
90 %inc26 = add nsw i64 %i8.0, 1
93 for.end27: ; preds = %for.cond9