1 ; RUN: opt %loadPolly -polly-detect-unprofitable -basicaa -polly-independent -S < %s | FileCheck %s
2 ; RUN: opt %loadPolly -polly-detect-unprofitable -basicaa -polly-independent -S < %s | FileCheck %s
3 ; RUN: opt %loadPolly -polly-detect-unprofitable -basicaa -polly-independent -disable-polly-intra-scop-scalar-to-array -S < %s | FileCheck %s -check-prefix=SCALARACCESS
4 ; RUN: opt %loadPolly -polly-detect-unprofitable -basicaa -polly-independent -disable-polly-intra-scop-scalar-to-array -S < %s | FileCheck %s -check-prefix=SCALARACCESS
6 ; void f(long A[], int N, int *init_ptr) {
9 ; for (i = 0; i < N; ++i) {
11 ; for (i = 0; i < N; ++i) {
13 ; A[i] = init + init2;
18 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"
19 target triple = "x86_64-unknown-linux-gnu"
21 define void @f(i64* noalias %A, i64 %N, i64* noalias %init_ptr) nounwind {
25 ; CHECK: %init.s2a = alloca i64
26 ; CHECK: br label %for.i
28 ; SCALARACCESS-NOT: alloca
32 %indvar.i = phi i64 [ 0, %entry ], [ %indvar.i.next, %for.i.end ]
33 %indvar.i.next = add nsw i64 %indvar.i, 1
37 %init = load i64* %init_ptr
38 ; SCALARACCESS-NOT: store
42 %indvar.j = phi i64 [ 0, %entry.next ], [ %indvar.j.next, %for.j ]
43 %init_2 = load i64* %init_ptr
44 %init_sum = add i64 %init, %init_2
45 ; CHECK: %init_2 = load i64* %init_ptr
46 ; CHECK: %init.loadarray = load i64* %init.s2a
47 ; CHECK: %init_sum = add i64 %init.loadarray, %init_2
49 ; The SCEV of %init_sum is (%init + %init_2). It is referring to both an
50 ; UnknownValue in the same and in a different basic block. We want only the
51 ; reference to the different basic block to be replaced.
53 ; SCALARACCESS: %init_2 = load i64* %init_ptr
54 ; SCALARACCESS: %init_sum = add i64 %init, %init_2
55 %scevgep = getelementptr i64, i64* %A, i64 %indvar.j
56 store i64 %init_sum, i64* %scevgep
57 %indvar.j.next = add nsw i64 %indvar.j, 1
58 %exitcond.j = icmp eq i64 %indvar.j.next, %N
59 br i1 %exitcond.j, label %for.i.end, label %for.j
62 %exitcond.i = icmp eq i64 %indvar.i.next, %N
63 br i1 %exitcond.i, label %return, label %for.i