1 ; RUN: opt -loop-accesses -analyze -S < %s | FileCheck %s
2 ; RUN: opt -passes='require<scalar-evolution>,require<aa>,loop(print-access-info)' -disable-output < %s 2>&1 | FileCheck %s
4 ; This is the test case from PR26314.
5 ; When we were retrying dependence checking with memchecks only,
6 ; the loop-invariant access in the inner loop was incorrectly determined to be wrapping
7 ; because it was not strided in the inner loop.
16 ; void slow_function (s* const obj, int z) {
17 ; for (int j=0; j<Z; j++) {
18 ; for (int k=0; k<z; k++) {
19 ; int x = obj->v1[k] + obj->v2[j];
25 ; CHECK: function 'Test':
27 ; CHECK-NEXT: Memory dependences are safe
28 ; CHECK-NEXT: Dependences:
29 ; CHECK-NEXT: Run-time memory checks:
33 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
34 target triple = "x86_64-unknown-linux-gnu"
36 %struct.s = type { [32 x i32], [32 x i32], [32 x [32 x i32]] }
38 define void @Test(%struct.s* nocapture %obj, i64 %z) #0 {
39 br label %.outer.preheader
43 %i = phi i64 [ 0, %0 ], [ %i.next, %.outer ]
44 %1 = getelementptr inbounds %struct.s, %struct.s* %obj, i64 0, i32 1, i64 %i
51 %i.next = add nuw nsw i64 %i, 1
52 %exitcond.outer = icmp eq i64 %i.next, 32
53 br i1 %exitcond.outer, label %.exit, label %.outer.preheader
56 %j = phi i64 [ 0, %.outer.preheader ], [ %j.next, %.inner ]
57 %2 = getelementptr inbounds %struct.s, %struct.s* %obj, i64 0, i32 0, i64 %j
58 %3 = load i32, i32* %2
59 %4 = load i32, i32* %1
60 %5 = add nsw i32 %4, %3
61 %6 = getelementptr inbounds %struct.s, %struct.s* %obj, i64 0, i32 2, i64 %i, i64 %j
62 %7 = load i32, i32* %6
63 %8 = add nsw i32 %5, %7
65 %j.next = add nuw nsw i64 %j, 1
66 %exitcond.inner = icmp eq i64 %j.next, %z
67 br i1 %exitcond.inner, label %.outer, label %.inner