1; RUN: opt -aa-pipeline=basic-aa -passes=loop-versioning -S %s | FileCheck %s
2
3%struct.foo = type { [32000 x double], [32000 x double] }
4
5@global = external global %struct.foo, align 32
6
7define void @bound_check_partially_known_1(i32 %N) {
8; CHECK-LABEL: @bound_check_partially_known_1(
9; CHECK-NEXT:  loop.lver.check:
10; CHECK-NEXT:    [[N_EXT:%.*]] = zext i32 [[N:%.*]] to i64
11; CHECK-NEXT:    [[SCEVGEP:%.*]] = getelementptr [[STRUCT_FOO:%.*]], %struct.foo* @global, i64 0, i32 0, i64 [[N_EXT]]
12; CHECK-NEXT:    [[SCEVGEP1:%.*]] = bitcast double* [[SCEVGEP]] to i8*
13; CHECK-NEXT:    [[TMP0:%.*]] = shl nuw nsw i64 [[N_EXT]], 1
14; CHECK-NEXT:    [[SCEVGEP2:%.*]] = getelementptr [[STRUCT_FOO]], %struct.foo* @global, i64 0, i32 0, i64 [[TMP0]]
15; CHECK-NEXT:    [[SCEVGEP23:%.*]] = bitcast double* [[SCEVGEP2]] to i8*
16; CHECK-NEXT:    [[TMP1:%.*]] = add nuw nsw i64 [[N_EXT]], 32000
17; CHECK-NEXT:    [[SCEVGEP4:%.*]] = getelementptr [[STRUCT_FOO]], %struct.foo* @global, i64 0, i32 0, i64 [[TMP1]]
18; CHECK-NEXT:    [[SCEVGEP45:%.*]] = bitcast double* [[SCEVGEP4]] to i8*
19; CHECK-NEXT:    [[BOUND1:%.*]] = icmp ult i8* bitcast (%struct.foo* @global to i8*), [[SCEVGEP23]]
20; CHECK-NEXT:    [[BOUND06:%.*]] = icmp ult i8* [[SCEVGEP1]], [[SCEVGEP45]]
21; CHECK-NEXT:    [[BOUND17:%.*]] = icmp ult i8* bitcast (double* getelementptr inbounds ([[STRUCT_FOO]], %struct.foo* @global, i64 0, i32 1, i64 0) to i8*), [[SCEVGEP23]]
22; CHECK-NEXT:    [[FOUND_CONFLICT8:%.*]] = and i1 [[BOUND06]], [[BOUND17]]
23; CHECK-NEXT:    br i1 [[FOUND_CONFLICT8]], label %loop.ph.lver.orig, label %loop.ph
24;
25entry:
26  %N.ext = zext i32 %N to i64
27  br label %loop
28
29loop:
30  %iv = phi i64 [ 0, %entry ], [ %iv.next, %loop ]
31  %gep.0.iv = getelementptr inbounds %struct.foo, %struct.foo* @global, i64 0, i32 0, i64 %iv
32  %l.0 = load double, double* %gep.0.iv, align 8
33  %gep.1.iv = getelementptr inbounds %struct.foo, %struct.foo* @global, i64 0, i32 1, i64 %iv
34  %l.1 = load double, double* %gep.1.iv, align 8
35  %add = fadd double %l.0, %l.1
36  %iv.N = add nuw nsw i64 %iv, %N.ext
37  %gep.0.iv.N = getelementptr inbounds %struct.foo, %struct.foo* @global, i64 0, i32 0, i64 %iv.N
38  store double %add, double* %gep.0.iv.N, align 8
39  %iv.next = add nuw nsw i64 %iv, 1
40  %exitcond = icmp eq i64 %iv.next, %N.ext
41  br i1 %exitcond, label %exit, label %loop
42
43exit:
44  ret void
45}
46