llvm-project

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; RUN: opt %loadNPMPolly -aa-pipeline=basic-aa -polly-stmt-granularity=bb '-passes=print<polly-dependences>' -disable-output < %s | FileCheck %s
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;
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; CHECK:      RAW dependences:
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; CHECK-NEXT:     {  }
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; CHECK-NEXT: WAR dependences:
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; CHECK-NEXT:     {  }
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; CHECK-NEXT: WAW dependences:
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; CHECK-NEXT:     {  }
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; CHECK-NEXT: Reduction dependences:
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; CHECK-NEXT:     { Stmt_for_body3[i0, i1] -> Stmt_for_body3[o0, 1 + i0 + i1 - o0] : i0 >= 0 and i1 >= 0 and o0 >= -1022 + i0 + i1 and i0 <= o0 <= 1023 and o0 <= 1 + i0 }
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;
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; void f(int *restrict A, int *restrict B, int *restrict Values) {
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;   for (int i = 0; i < 1024; i++) {
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;     for (int j = 0; j < 1024; j++) {
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;       A[i] += Values[i + j - 1];
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;       B[j] += Values[i + j + 42];
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;     }
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;   }
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; }
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;
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target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-n32-S64"
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define void @f(ptr noalias %A, ptr noalias %B, ptr noalias %Values)  {
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entry:
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  br label %for.cond
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for.cond:                                         ; preds = %for.inc11, %entry
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  %i.0 = phi i32 [ 0, %entry ], [ %inc12, %for.inc11 ]
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  %exitcond1 = icmp ne i32 %i.0, 1024
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  br i1 %exitcond1, label %for.body, label %for.end13
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for.body:                                         ; preds = %for.cond
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  br label %for.cond1
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for.cond1:                                        ; preds = %for.inc, %for.body
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  %j.0 = phi i32 [ 0, %for.body ], [ %inc, %for.inc ]
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  %exitcond = icmp ne i32 %j.0, 1024
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  br i1 %exitcond, label %for.body3, label %for.end
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for.body3:                                        ; preds = %for.cond1
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  %add = add nsw i32 %i.0, %j.0
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  %sub = add nsw i32 %add, -1
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  %arrayidx = getelementptr inbounds i32, ptr %Values, i32 %sub
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  %tmp = load i32, ptr %arrayidx, align 4
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  %arrayidx4 = getelementptr inbounds i32, ptr %A, i32 %i.0
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  %tmp2 = load i32, ptr %arrayidx4, align 4
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  %add5 = add nsw i32 %tmp2, %tmp
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  store i32 %add5, ptr %arrayidx4, align 4
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  %add6 = add nsw i32 %i.0, %j.0
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  %add7 = add nsw i32 %add6, 42
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  %arrayidx8 = getelementptr inbounds i32, ptr %Values, i32 %add7
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  %tmp3 = load i32, ptr %arrayidx8, align 4
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  %arrayidx9 = getelementptr inbounds i32, ptr %B, i32 %j.0
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  %tmp4 = load i32, ptr %arrayidx9, align 4
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  %add10 = add nsw i32 %tmp4, %tmp3
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  store i32 %add10, ptr %arrayidx9, align 4
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  br label %for.inc
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for.inc:                                          ; preds = %for.body3
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  %inc = add nsw i32 %j.0, 1
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  br label %for.cond1
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for.end:                                          ; preds = %for.cond1
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  br label %for.inc11
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for.inc11:                                        ; preds = %for.end
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  %inc12 = add nsw i32 %i.0, 1
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  br label %for.cond
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for.end13:                                        ; preds = %for.cond
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  ret void
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}
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