1 ; RUN: opt %loadPolly -polly-detect-unprofitable -basicaa -polly-analyze-ir -analyze < %s | FileCheck %s
2 ; RUN: opt %loadPolly -polly-detect-unprofitable -basicaa -polly-analyze-ir -analyze -disable-polly-intra-scop-scalar-to-array < %s | FileCheck %s -check-prefix=SCALARACCESS
4 ; void f(long A[], int N, int *init_ptr) {
7 ; for (i = 0; i < N; ++i) {
9 ; for (i = 0; i < N; ++i) {
15 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"
16 target triple = "x86_64-unknown-linux-gnu"
18 define void @f(i64* noalias %A, i64 %N, i64* noalias %init_ptr) nounwind {
23 %indvar.i = phi i64 [ 0, %entry ], [ %indvar.i.next, %for.i.end ]
24 %indvar.i.next = add nsw i64 %indvar.i, 1
28 ; CHECK: BB: entry.next
29 ; SCALARACCESS: BB: entry.next
30 %init = load i64* %init_ptr
31 ; CHECK: Read init_ptr[0]
32 ; CHECK: Write init.s2a[0]
33 ; SCALARACCESS: Read init_ptr[0]
34 ; SCALARACCESS: Write init[0]
38 %indvar.j = phi i64 [ 0, %entry.next ], [ %indvar.j.next, %for.j ]
40 ; CHECK: Read init.s2a[0]
41 ; CHECK: Write A[{0,+,8}<%for.j>]
43 ; SCALARACCESS: BB: for.j
44 ; SCALARACCESS: Read init
45 ; SCALARACCESS: Write A[{0,+,8}<%for.j>]
46 %init_plus_two = add i64 %init, 2
47 %scevgep = getelementptr i64, i64* %A, i64 %indvar.j
48 store i64 %init_plus_two, i64* %scevgep
49 %indvar.j.next = add nsw i64 %indvar.j, 1
50 %exitcond.j = icmp eq i64 %indvar.j.next, %N
51 br i1 %exitcond.j, label %for.i.end, label %for.j
54 %exitcond.i = icmp eq i64 %indvar.i.next, %N
55 br i1 %exitcond.i, label %return, label %for.i
61 define void @g(i64* noalias %A, i64 %N, i64* noalias %init_ptr) nounwind {
66 %indvar.i = phi i64 [ 0, %entry ], [ %indvar.i.next, %for.i.end ]
67 %indvar.i.next = add nsw i64 %indvar.i, 1
71 ; SCALARACCESS: BB: entry.next
72 %init = load i64* %init_ptr
73 ; SCALARACCESS: Read init_ptr[0]
74 ; SCALARACCESS: Write init[0]
78 ; SCALARACCESS: BB: for.j
79 %indvar.j = phi i64 [ 0, %entry.next ], [ %indvar.j.next, %for.j ]
80 %scevgep = getelementptr i64, i64* %A, i64 %indvar.j
81 store i64 %init, i64* %scevgep
82 ; SCALARACCESS: Read init
83 ; SCALARACCESS: Write A[{0,+,8}<%for.j>]
84 %indvar.j.next = add nsw i64 %indvar.j, 1
85 %exitcond.j = icmp eq i64 %indvar.j.next, %N
86 br i1 %exitcond.j, label %for.i.end, label %for.j
89 %exitcond.i = icmp eq i64 %indvar.i.next, %N
90 br i1 %exitcond.i, label %return, label %for.i