; RUN: opt %loadPolly -polly-dependences -analyze < %s | FileCheck %s ; ; FIXME: Change the comment once we allow different pointers ; The statement is "almost" reduction like but should not yield any reduction dependences ; ; We are limited to binary reductions at the moment and this is not one. ; There are never at least two iterations which read __and__ write to the same ; location, thus we won't find the RAW and WAW dependences of a reduction, ; thus we should not find Reduction dependences. ; ; CHECK: Reduction dependences: ; CHECK: { } ; ; void f(int *sum) { ; for (int i = 0; i < 100; i++) ; sum[i] = sum[99-i] + i; ; } target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-n32-S64" define void @f(i32* %sum) { entry: br label %for.cond for.cond: ; preds = %for.inc, %entry %i.0 = phi i32 [ 0, %entry ], [ %inc, %for.inc ] %exitcond = icmp ne i32 %i.0, 100 br i1 %exitcond, label %for.body, label %for.end for.body: ; preds = %for.cond %sub = sub nsw i32 99, %i.0 %arrayidx = getelementptr inbounds i32, i32* %sum, i32 %sub %tmp = load i32, i32* %arrayidx, align 4 %add = add nsw i32 %tmp, %i.0 %arrayidx1 = getelementptr inbounds i32, i32* %sum, i32 %i.0 store i32 %add, i32* %arrayidx1, align 4 br label %for.inc for.inc: ; preds = %for.body %inc = add nsw i32 %i.0, 1 br label %for.cond for.end: ; preds = %for.cond ret void }