1 ; RUN: opt %loadPolly -basicaa -polly-scops -analyze < %s | FileCheck %s
3 target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
5 ;long f(long a[], long n) {
8 ; for (i = 1; i < n; ++i) {
10 ; k = a[i + 3] + a[2 * i];
15 define i64 @f(i64* nocapture %a, i64 %n) nounwind {
17 %0 = icmp sgt i64 %n, 1 ; <i1> [#uses=1]
18 br i1 %0, label %bb.nph, label %bb2
20 bb.nph: ; preds = %entry
21 %tmp = add i64 %n, -1 ; <i64> [#uses=1]
22 %.pre = load i64, i64* %a, align 8 ; <i64> [#uses=1]
25 bb: ; preds = %bb, %bb.nph
26 %tmp1 = phi i64 [ %.pre, %bb.nph ], [ %tmp2, %bb ] ; <i64> [#uses=1]
27 %indvar = phi i64 [ 0, %bb.nph ], [ %tmp6, %bb ] ; <i64> [#uses=3]
28 %k.05 = phi i64 [ 1, %bb.nph ], [ %tmp5, %bb ] ; <i64> [#uses=1]
29 %tmp6 = add i64 %indvar, 1 ; <i64> [#uses=3]
30 %scevgep = getelementptr i64, i64* %a, i64 %tmp6 ; <i64*> [#uses=1]
31 %tmp2 = mul nsw i64 %tmp1, %k.05 ; <i64> [#uses=2]
32 store i64 %tmp2, i64* %scevgep, align 8
33 %tmp7 = shl i64 %indvar, 1 ; <i64> [#uses=1]
34 %tmp11 = add i64 %indvar, 4 ; <i64> [#uses=1]
35 %tmp8 = add i64 %tmp7, 2 ; <i64> [#uses=1]
36 %scevgep12 = getelementptr i64, i64* %a, i64 %tmp11 ; <i64*> [#uses=1]
37 %scevgep9 = getelementptr i64, i64* %a, i64 %tmp8 ; <i64*> [#uses=1]
38 %tmp3 = load i64, i64* %scevgep9, align 8 ; <i64> [#uses=1]
39 %tmp4 = load i64, i64* %scevgep12, align 8 ; <i64> [#uses=1]
40 %tmp5 = add nsw i64 %tmp3, %tmp4 ; <i64> [#uses=1]
41 %exitcond = icmp eq i64 %tmp6, %tmp ; <i1> [#uses=1]
42 br i1 %exitcond, label %bb2, label %bb
44 bb2: ; preds = %bb, %entry
51 ; CHECK-NEXT: Domain :=
52 ; CHECK-NEXT: [n] -> { Stmt_bb[i0] : 0 <= i0 <= -2 + n };
53 ; CHECK-NEXT: Schedule :=
54 ; CHECK-NEXT: [n] -> { Stmt_bb[i0] -> [i0] };
55 ; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 1]
56 ; CHECK-NEXT: [n] -> { Stmt_bb[i0] -> MemRef_tmp1__phi[] };
57 ; CHECK-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 1]
58 ; CHECK-NEXT: [n] -> { Stmt_bb[i0] -> MemRef_tmp1__phi[] };
59 ; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 1]
60 ; CHECK-NEXT: [n] -> { Stmt_bb[i0] -> MemRef_k_05__phi[] };
61 ; CHECK-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 1]
62 ; CHECK-NEXT: [n] -> { Stmt_bb[i0] -> MemRef_k_05__phi[] };
63 ; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 0]
64 ; CHECK-NEXT: [n] -> { Stmt_bb[i0] -> MemRef_a[1 + i0] };
65 ; CHECK-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 0]
66 ; CHECK-NEXT: [n] -> { Stmt_bb[i0] -> MemRef_a[2 + 2i0] };
67 ; CHECK-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 0]
68 ; CHECK-NEXT: [n] -> { Stmt_bb[i0] -> MemRef_a[4 + i0] };