llvm/polly/test/ScopInfo/reduction_escaping_intermediate.ll

; RUN: opt %loadNPMPolly -aa-pipeline=basic-aa '-passes=print<polly-function-scops>' -disable-output < %s 2>&1 | FileCheck %s
;
; void f(int N, int * restrict sums, int * restrict escape) {
;   int i, j;
;   for (i = 0; i < 1024; i++) {
;     for (j = 0; j < 1024; j++) {
;       sums[i] += 5;
;       escape[N - i + j] = sums[i];
;     }
;   }
; }
;
; CHECK: Reduction Type: NONE
; CHECK: sums
; CHECK: Reduction Type: NONE
; CHECK: sums
; CHECK: Reduction Type: NONE
; CHECK: escape
target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-n32-S64"

define void @f(i32 %N, ptr noalias %sums, ptr noalias %escape) {
entry:
  br label %for.cond

for.cond:                                         ; preds = %for.inc7, %entry
  %i.0 = phi i32 [ 0, %entry ], [ %inc8, %for.inc7 ]
  %exitcond1 = icmp ne i32 %i.0, 1024
  br i1 %exitcond1, label %for.body, label %for.end9

for.body:                                         ; preds = %for.cond
  br label %for.cond1

for.cond1:                                        ; preds = %for.inc, %for.body
  %j.0 = phi i32 [ 0, %for.body ], [ %inc, %for.inc ]
  %exitcond = icmp ne i32 %j.0, 1024
  br i1 %exitcond, label %for.body3, label %for.end

for.body3:                                        ; preds = %for.cond1
  %arrayidx = getelementptr inbounds i32, ptr %sums, i32 %i.0
  %tmp = load i32, ptr %arrayidx, align 4
  %add = add nsw i32 %tmp, 5
  store i32 %add, ptr %arrayidx, align 4
  %sub = sub nsw i32 %N, %i.0
  %add5 = add nsw i32 %sub, %j.0
  %arrayidx6 = getelementptr inbounds i32, ptr %escape, i32 %add5
  store i32 %add, ptr %arrayidx6, align 4
  br label %for.inc

for.inc:                                          ; preds = %for.body3
  %inc = add nsw i32 %j.0, 1
  br label %for.cond1

for.end:                                          ; preds = %for.cond1
  br label %for.inc7

for.inc7:                                         ; preds = %for.end
  %inc8 = add nsw i32 %i.0, 1
  br label %for.cond

for.end9:                                         ; preds = %for.cond
  ret void
}