| ; RUN: opt %loadPolly -polly-detect -analyze < %s | FileCheck %s |
| |
| ; void f(long A[], long N) { |
| ; long i; |
| ; long i_non_canonical = 1; |
| ; for (i = 0; i < N; ++i) { |
| ; A[i] = i_non_canonical; |
| ; i_non_canonical += 1; |
| ; } |
| ; } |
| |
| 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" |
| |
| define void @f(i64* %A, i64 %N) nounwind { |
| entry: |
| %cmp = icmp sgt i64 %N, 0 |
| br i1 %cmp, label %for.i, label %return |
| |
| for.i: |
| %indvar = phi i64 [ 0, %entry ], [ %indvar.next, %for.i ] |
| %indvar_non_canonical = phi i64 [ 1, %entry ], [ %indvar_non_canonical.next, %for.i ] |
| %scevgep = getelementptr i64, i64* %A, i64 %indvar |
| store i64 %indvar_non_canonical, i64* %scevgep |
| %indvar.next = add nsw i64 %indvar, 1 |
| %indvar_non_canonical.next = add nsw i64 %indvar_non_canonical, 1 |
| %exitcond = icmp eq i64 %indvar.next, %N |
| br i1 %exitcond, label %return, label %for.i |
| |
| return: |
| ret void |
| } |
| |
| ; CHECK: Valid Region for Scop: for.i => return |
