; NOTE: Assertions have been autogenerated by utils/update_analyze_test_checks.py UTC_ARGS: --version 5
; RUN: opt < %s -passes='print<delinearization>' -disable-output -delinearize-use-fixed-size-array-heuristic 2>&1 | FileCheck %s

; Pseudo-code:
;
;   arr[10][20];
;
;   for i=0 to N
;     for j=0 to M
;       a[i][j];
;

@test_array_10x20 = global [10 x [20 x i32]] zeroinitializer

; Function that accesses a 2D array with dimensions [10][20].
define void @test_2d_array(i64 %i, i64 %j, i64 %N, i64 %M) {
; CHECK-LABEL: 'test_2d_array'
; CHECK-NEXT:  Inst: %val = load i32, ptr %gepij, align 4
; CHECK-NEXT:  AccessFunction: {{\{\{}}0,+,80}<%for.i>,+,4}<%for.j>
; CHECK-NEXT:  Base offset: @test_array_10x20
; CHECK-NEXT:  ArrayDecl[UnknownSize][20] with elements of 4 bytes.
; CHECK-NEXT:  ArrayRef[{0,+,1}<nuw><%for.i>][{0,+,1}<nuw><nsw><%for.j>]
; CHECK-NEXT:  Delinearization validation: Failed
;
entry:
  br label %for.i

for.i:
  %i.cur = phi i64 [ 0, %entry ], [ %i.next, %for.j.end ]
  %gepi = getelementptr inbounds nuw [20 x i32], ptr @test_array_10x20, i64 %i.cur
  %i.cmp = icmp slt i64 %i.cur, %N
  br i1 %i.cmp, label %for.j, label %exit

for.j:
  %j.cur = phi i64 [ 0, %for.i ], [ %j.next, %for.j ]
  %gepij = getelementptr inbounds nuw i32, ptr %gepi, i64 %j.cur
  %val = load i32, ptr %gepij, align 4
  %j.next = add i64 %j.cur, 1
  %j.cmp = icmp slt i64 %j.next, %M
  br i1 %j.cmp, label %for.j, label %for.j.end

for.j.end:
  %i.next = add i64 %i.cur, 1
  br label %for.i

exit:
  ret void
}