test/Analysis/Delinearization/multidim_ivs_and_integer_offsets_3d.ll

; RUN: opt < %s -analyze -enable-new-pm=0 -delinearize  | FileCheck %s
; RUN: opt < %s -passes='print<delinearization>' -disable-output  2>&1 | FileCheck %s

; void foo(long n, long m, long o, double A[n][m][o]) {
;
;   for (long i = 0; i < n; i++)
;     for (long j = 0; j < m; j++)
;       for (long k = 0; k < o; k++)
;         A[i+3][j-4][k+7] = 1.0;
; }

; AddRec: {{{(56 + (8 * (-4 + (3 * %m)) * %o) + %A),+,(8 * %m * %o)}<%for.i>,+,(8 * %o)}<%for.j>,+,8}<%for.k>
; CHECK: Base offset: %A
; CHECK: ArrayDecl[UnknownSize][%m][%o] with elements of 8 bytes.
; CHECK: ArrayRef[{3,+,1}<nuw><%for.i>][{-4,+,1}<nw><%for.j>][{7,+,1}<nuw><nsw><%for.k>]

define void @foo(i64 %n, i64 %m, i64 %o, double* %A) {
entry:
  br label %for.i

for.i:
  %i = phi i64 [ 0, %entry ], [ %i.inc, %for.i.inc ]
  br label %for.j

for.j:
  %j = phi i64 [ 0, %for.i ], [ %j.inc, %for.j.inc ]
  br label %for.k

for.k:
  %k = phi i64 [ 0, %for.j ], [ %k.inc, %for.k.inc ]
  %offset0 = add nsw i64 %i, 3
  %subscript0 = mul i64 %offset0, %m
  %offset1 = add nsw i64 %j, -4
  %subscript1 = add i64 %offset1, %subscript0
  %subscript2 = mul i64 %subscript1, %o
  %offset2 = add nsw i64 %k, 7
  %subscript = add i64 %subscript2, %offset2
  %idx = getelementptr inbounds double, double* %A, i64 %subscript
  store double 1.0, double* %idx
  br label %for.k.inc

for.k.inc:
  %k.inc = add nsw i64 %k, 1
  %k.exitcond = icmp eq i64 %k.inc, %o
  br i1 %k.exitcond, label %for.j.inc, label %for.k

for.j.inc:
  %j.inc = add nsw i64 %j, 1
  %j.exitcond = icmp eq i64 %j.inc, %m
  br i1 %j.exitcond, label %for.i.inc, label %for.j

for.i.inc:
  %i.inc = add nsw i64 %i, 1
  %i.exitcond = icmp eq i64 %i.inc, %n
  br i1 %i.exitcond, label %end, label %for.i

end:
  ret void
}