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; RUN: opt %loadPolly -basic-aa -polly-allow-nonaffine-branches -polly-allow-nonaffine-loops=false -polly-print-scops -disable-output < %s | FileCheck %s --check-prefix=INNERMOST
; RUN: opt %loadPolly -basic-aa -polly-allow-nonaffine-branches -polly-allow-nonaffine-loops=true -polly-print-scops -disable-output < %s | FileCheck %s --check-prefix=INNERMOST
; RUN: opt %loadPolly -basic-aa -polly-allow-nonaffine-branches -polly-allow-nonaffine-loops=true -polly-allow-nonaffine -polly-print-scops -disable-output < %s | FileCheck %s --check-prefix=ALL
;
; Here we have a non-affine loop (in the context of the loop nest)
; and also a non-affine access (A[k]). While we can always model the
; innermost loop as a SCoP of depth 1, we can overapproximate the
; innermost loop in the whole loop nest and model A[k] as a non-affine
; access.
;
; INNERMOST: Function: f
; INNERMOST-NEXT: Region: %bb15---%bb13
; INNERMOST-NEXT: Max Loop Depth: 1
; INNERMOST-NEXT: Invariant Accesses: {
; INNERMOST-NEXT: }
; INNERMOST-NEXT: Context:
; INNERMOST-NEXT: [p_0, p_1, p_2] -> { : 0 <= p_0 <= 1048576 and 0 <= p_1 <= 1024 and 0 <= p_2 <= 1024 }
; INNERMOST-NEXT: Assumed Context:
; INNERMOST-NEXT: [p_0, p_1, p_2] -> { : }
; INNERMOST-NEXT: Invalid Context:
; INNERMOST-NEXT: [p_0, p_1, p_2] -> { : false }
; INNERMOST: p0: {0,+,{0,+,1}<nuw><nsw><%bb11>}<nuw><nsw><%bb13>
; INNERMOST-NEXT: p1: {0,+,1}<nuw><nsw><%bb11>
; INNERMOST-NEXT: p2: {0,+,1}<nuw><nsw><%bb13>
; INNERMOST-NEXT: Arrays {
; INNERMOST-NEXT: i32 MemRef_A[*]; // Element size 4
; INNERMOST-NEXT: i64 MemRef_indvars_iv_next6; // Element size 8
; INNERMOST-NEXT: i32 MemRef_indvars_iv_next4; // Element size 4
; INNERMOST-NEXT: }
; INNERMOST-NEXT: Arrays (Bounds as pw_affs) {
; INNERMOST-NEXT: i32 MemRef_A[*]; // Element size 4
; INNERMOST-NEXT: i64 MemRef_indvars_iv_next6; // Element size 8
; INNERMOST-NEXT: i32 MemRef_indvars_iv_next4; // Element size 4
; INNERMOST-NEXT: }
; INNERMOST-NEXT: Alias Groups (0):
; INNERMOST-NEXT: n/a
; INNERMOST-NEXT: Statements {
; INNERMOST-NEXT: Stmt_bb16
; INNERMOST-NEXT: Domain :=
; INNERMOST-NEXT: [p_0, p_1, p_2] -> { Stmt_bb16[i0] : 0 <= i0 < p_0 };
; INNERMOST-NEXT: Schedule :=
; INNERMOST-NEXT: [p_0, p_1, p_2] -> { Stmt_bb16[i0] -> [0, i0] };
; INNERMOST-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 0]
; INNERMOST-NEXT: [p_0, p_1, p_2] -> { Stmt_bb16[i0] -> MemRef_A[p_1] };
; INNERMOST-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 0]
; INNERMOST-NEXT: [p_0, p_1, p_2] -> { Stmt_bb16[i0] -> MemRef_A[p_2] };
; INNERMOST-NEXT: ReadAccess := [Reduction Type: +] [Scalar: 0]
; INNERMOST-NEXT: [p_0, p_1, p_2] -> { Stmt_bb16[i0] -> MemRef_A[i0] };
; INNERMOST-NEXT: MustWriteAccess := [Reduction Type: +] [Scalar: 0]
; INNERMOST-NEXT: [p_0, p_1, p_2] -> { Stmt_bb16[i0] -> MemRef_A[i0] };
; INNERMOST-NEXT: Stmt_bb26
; INNERMOST-NEXT: Domain :=
; INNERMOST-NEXT: [p_0, p_1, p_2] -> { Stmt_bb26[] };
; INNERMOST-NEXT: Schedule :=
; INNERMOST-NEXT: [p_0, p_1, p_2] -> { Stmt_bb26[] -> [1, 0] };
; INNERMOST-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 1]
; INNERMOST-NEXT: [p_0, p_1, p_2] -> { Stmt_bb26[] -> MemRef_indvars_iv_next6[] };
; INNERMOST-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 1]
; INNERMOST-NEXT: [p_0, p_1, p_2] -> { Stmt_bb26[] -> MemRef_indvars_iv_next4[] };
; INNERMOST-NEXT: }
; ALL: Function: f
; ALL-NEXT: Region: %bb11---%bb29
; ALL-NEXT: Max Loop Depth: 2
; ALL-NEXT: Invariant Accesses: {
; ALL-NEXT: }
; ALL-NEXT: Context:
; ALL-NEXT: { : }
; ALL-NEXT: Assumed Context:
; ALL-NEXT: { : }
; ALL-NEXT: Invalid Context:
; ALL-NEXT: { : false }
; ALL: Arrays {
; ALL-NEXT: i32 MemRef_A[*]; // Element size 4
; ALL-NEXT: }
; ALL-NEXT: Arrays (Bounds as pw_affs) {
; ALL-NEXT: i32 MemRef_A[*]; // Element size 4
; ALL-NEXT: }
; ALL-NEXT: Alias Groups (0):
; ALL-NEXT: n/a
; ALL-NEXT: Statements {
; ALL-NEXT: Stmt_bb15__TO__bb25
; ALL-NEXT: Domain :=
; ALL-NEXT: { Stmt_bb15__TO__bb25[i0, i1] : 0 <= i0 <= 1023 and 0 <= i1 <= 1023 };
; ALL-NEXT: Schedule :=
; ALL-NEXT: { Stmt_bb15__TO__bb25[i0, i1] -> [i0, i1] };
; ALL-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 0]
; ALL-NEXT: { Stmt_bb15__TO__bb25[i0, i1] -> MemRef_A[i0] };
; ALL-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 0]
; ALL-NEXT: { Stmt_bb15__TO__bb25[i0, i1] -> MemRef_A[i1] };
; ALL-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 0]
; ALL-NEXT: { Stmt_bb15__TO__bb25[i0, i1] -> MemRef_A[o0] : 0 <= o0 <= 1048576 };
; ALL-NEXT: MayWriteAccess := [Reduction Type: NONE] [Scalar: 0]
; ALL-NEXT: { Stmt_bb15__TO__bb25[i0, i1] -> MemRef_A[o0] : 0 <= o0 <= 1048576 };
; ALL-NEXT: }
;
; void f(int *A) {
; for (int i = 0; i < 1024; i++)
; for (int j = 0; j < 1024; j++)
; for (int k = 0; k < i * j; k++)
; A[k] += A[i] + A[j];
; }
;
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
define void @f(ptr %A) {
bb:
br label %bb11
bb11: ; preds = %bb28, %bb
%indvars.iv8 = phi i64 [ %indvars.iv.next9, %bb28 ], [ 0, %bb ]
%indvars.iv1 = phi i32 [ %indvars.iv.next2, %bb28 ], [ 0, %bb ]
%exitcond10 = icmp ne i64 %indvars.iv8, 1024
br i1 %exitcond10, label %bb12, label %bb29
bb12: ; preds = %bb11
br label %bb13
bb13: ; preds = %bb26, %bb12
%indvars.iv5 = phi i64 [ %indvars.iv.next6, %bb26 ], [ 0, %bb12 ]
%indvars.iv3 = phi i32 [ %indvars.iv.next4, %bb26 ], [ 0, %bb12 ]
%exitcond7 = icmp ne i64 %indvars.iv5, 1024
br i1 %exitcond7, label %bb14, label %bb27
bb14: ; preds = %bb13
br label %bb15
bb15: ; preds = %bb24, %bb14
%indvars.iv = phi i64 [ %indvars.iv.next, %bb24 ], [ 0, %bb14 ]
%lftr.wideiv = trunc i64 %indvars.iv to i32
%exitcond = icmp ne i32 %lftr.wideiv, %indvars.iv3
br i1 %exitcond, label %bb16, label %bb25
bb16: ; preds = %bb15
%tmp = getelementptr inbounds i32, ptr %A, i64 %indvars.iv8
%tmp17 = load i32, ptr %tmp, align 4
%tmp18 = getelementptr inbounds i32, ptr %A, i64 %indvars.iv5
%tmp19 = load i32, ptr %tmp18, align 4
%tmp20 = add nsw i32 %tmp17, %tmp19
%tmp21 = getelementptr inbounds i32, ptr %A, i64 %indvars.iv
%tmp22 = load i32, ptr %tmp21, align 4
%tmp23 = add nsw i32 %tmp22, %tmp20
store i32 %tmp23, ptr %tmp21, align 4
br label %bb24
bb24: ; preds = %bb16
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
br label %bb15
bb25: ; preds = %bb15
br label %bb26
bb26: ; preds = %bb25
%indvars.iv.next6 = add nuw nsw i64 %indvars.iv5, 1
%indvars.iv.next4 = add nuw nsw i32 %indvars.iv3, %indvars.iv1
br label %bb13
bb27: ; preds = %bb13
br label %bb28
bb28: ; preds = %bb27
%indvars.iv.next9 = add nuw nsw i64 %indvars.iv8, 1
%indvars.iv.next2 = add nuw nsw i32 %indvars.iv1, 1
br label %bb11
bb29: ; preds = %bb11
ret void
}
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