1 ; RUN: opt %loadPolly -polly-detect-unprofitable -polly-scops -analyze < %s | FileCheck %s
3 ; void f(long a[][128], long N, long M) {
5 ; for (j = 0; j < (4*N + 7*M +3); ++j)
6 ; for (i = 0; i < (5*N + 2); ++i)
10 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"
11 target triple = "x86_64-unknown-linux-gnu"
13 define void @f([128 x i64]* nocapture %a, i64 %N, i64 %M) nounwind {
15 %0 = shl i64 %N, 2 ; <i64> [#uses=2]
16 %1 = mul i64 %M, 7 ; <i64> [#uses=2]
17 %2 = or i64 %0, 3 ; <i64> [#uses=1]
18 %3 = add nsw i64 %2, %1 ; <i64> [#uses=1]
19 %4 = icmp sgt i64 %3, 0 ; <i1> [#uses=1]
20 br i1 %4, label %bb.nph8, label %return
22 bb1: ; preds = %bb2.preheader, %bb1
23 %i.06 = phi i64 [ 0, %bb2.preheader ], [ %5, %bb1 ] ; <i64> [#uses=2]
24 %scevgep = getelementptr [128 x i64], [128 x i64]* %a, i64 %i.06, i64 %10 ; <i64*> [#uses=1]
25 store i64 0, i64* %scevgep, align 8
26 %5 = add nsw i64 %i.06, 1 ; <i64> [#uses=2]
27 %exitcond = icmp eq i64 %5, %8 ; <i1> [#uses=1]
28 br i1 %exitcond, label %bb3, label %bb1
31 %6 = add i64 %10, 1 ; <i64> [#uses=2]
32 %exitcond14 = icmp eq i64 %6, %tmp13 ; <i1> [#uses=1]
33 br i1 %exitcond14, label %return, label %bb2.preheader
35 bb.nph8: ; preds = %entry
36 %7 = mul i64 %N, 5 ; <i64> [#uses=1]
37 %8 = add nsw i64 %7, 2 ; <i64> [#uses=2]
38 %9 = icmp sgt i64 %8, 0 ; <i1> [#uses=1]
39 br i1 %9, label %bb.nph8.split, label %return
41 bb.nph8.split: ; preds = %bb.nph8
42 %tmp12 = add i64 %1, %0 ; <i64> [#uses=1]
43 %tmp13 = add i64 %tmp12, 3 ; <i64> [#uses=1]
44 br label %bb2.preheader
46 bb2.preheader: ; preds = %bb.nph8.split, %bb3
47 %10 = phi i64 [ 0, %bb.nph8.split ], [ %6, %bb3 ] ; <i64> [#uses=2]
50 return: ; preds = %bb.nph8, %bb3, %entry
59 ; CHECK: [N, M] -> { Stmt_bb1[i0, i1] : i0 >= 0 and i0 <= 2 + 4N + 7M and i1 >= 0 and i1 <= 1 + 5N and N >= 0 };
60 ; CHECK: Scattering :=
61 ; CHECK: [N, M] -> { Stmt_bb1[i0, i1] -> [i0, i1] };
62 ; CHECK: MustWriteAccess := [Reduction Type: NONE]
63 ; CHECK: [N, M] -> { Stmt_bb1[i0, i1] -> MemRef_a[i0 + 128i1] };