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; RUN: opt %loadPolly \
; RUN: -polly-scops -analyze < %s | FileCheck %s
; RUN: opt %loadPolly \
; RUN: -S -polly-codegen < %s | FileCheck %s --check-prefix=CODEGEN
;
; CHECK: [N] -> { Stmt_bb11[i0, i1] : i0 < N and i1 >= 0 and 3i1 <= -3 + i0 };
; CODEGEN: polly
;
; void f(int *A, int N) {
; for (int i = 0; i < N; i++)
; for (int j = 0; j < i / 3; j++)
; A[i] += A[j];
; }
;
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
define void @f(i32* %A, i32 %N) {
bb:
%tmp = sext i32 %N to i64
br label %bb3
bb3: ; preds = %bb19, %bb
%indvars.iv1 = phi i64 [ %indvars.iv.next2, %bb19 ], [ 0, %bb ]
%tmp4 = icmp slt i64 %indvars.iv1, %tmp
br i1 %tmp4, label %bb5, label %bb20
bb5: ; preds = %bb3
br label %bb6
bb6: ; preds = %bb17, %bb5
%indvars.iv = phi i64 [ %indvars.iv.next, %bb17 ], [ 0, %bb5 ]
%tmp7 = trunc i64 %indvars.iv1 to i32
%tmp8 = sdiv i32 %tmp7, 3
%tmp9 = sext i32 %tmp8 to i64
%tmp10 = icmp slt i64 %indvars.iv, %tmp9
br i1 %tmp10, label %bb11, label %bb18
bb11: ; preds = %bb6
%tmp12 = getelementptr inbounds i32, i32* %A, i64 %indvars.iv
%tmp13 = load i32, i32* %tmp12, align 4
%tmp14 = getelementptr inbounds i32, i32* %A, i64 %indvars.iv1
%tmp15 = load i32, i32* %tmp14, align 4
%tmp16 = add nsw i32 %tmp15, %tmp13
store i32 %tmp16, i32* %tmp14, align 4
br label %bb17
bb17: ; preds = %bb11
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
br label %bb6
bb18: ; preds = %bb6
br label %bb19
bb19: ; preds = %bb18
%indvars.iv.next2 = add nuw nsw i64 %indvars.iv1, 1
br label %bb3
bb20: ; preds = %bb3
ret void
}
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