; RUN: opt -S %loadPolly -polly-dependences -analyze < %s | FileCheck %s -check-prefix=VALUE target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" ; for (int i = 0; i < N; i++) { ; A.must.write.20: A[i] = 20; ; ; compute.i.square: if (i * i) ; A.may.write.90: A[i] = 90; ; ; B.write.from.A: B[i] = A[i]; ; A.must.write.42: A[i] = 42; ; } define void @f(i32* %A, i32* %B) { entry: br label %for.cond for.cond: ; preds = %for.inc, %entry %indvars.iv = phi i64 [ %indvars.iv.next, %for.inc ], [ 0, %entry ] %exitcond = icmp ne i64 %indvars.iv, 3000 br i1 %exitcond, label %A.must.write.20, label %for.end A.must.write.20: %arrayidx = getelementptr inbounds i32, i32* %A, i64 %indvars.iv store i32 20, i32* %arrayidx, align 4 br label %compute.i.square compute.i.square: %tmp = mul nsw i64 %indvars.iv, %indvars.iv %tmp2 = trunc i64 %tmp to i32 %tobool = icmp eq i32 %tmp2, 0 br i1 %tobool, label %B.write.from.A, label %A.may.write.90 A.may.write.90: %arrayidx2 = getelementptr inbounds i32, i32* %A, i64 %indvars.iv store i32 90, i32* %arrayidx2, align 4 br label %B.write.from.A B.write.from.A: %arrayidx4 = getelementptr inbounds i32, i32* %A, i64 %indvars.iv %tmp3 = load i32, i32* %arrayidx4, align 4 %arrayidx6 = getelementptr inbounds i32, i32* %B, i64 %indvars.iv store i32 %tmp3, i32* %arrayidx6, align 4 br label %A.must.write.42 ; br label %for.inc A.must.write.42: %arrayidx5 = getelementptr inbounds i32, i32* %A, i64 %indvars.iv store i32 42, i32* %arrayidx5, align 4 br label %for.inc for.inc: ; preds = %if.end %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 br label %for.cond for.end: ; preds = %for.cond ret void } ; VALUE: RAW dependences: ; VALUE-NEXT: { Stmt_A_must_write_20[i0] -> Stmt_B_write_from_A[i0] : 0 <= i0 <= 2999; Stmt_compute_i_square__TO__B_write_from_A[i0] -> Stmt_B_write_from_A[i0] : 0 <= i0 <= 2999 } ; VALUE-NEXT: WAR dependences: ; VALUE-NEXT: { Stmt_B_write_from_A[i0] -> Stmt_A_must_write_42[i0] : 0 <= i0 <= 2999 } ; VALUE-NEXT: WAW dependences: ; VALUE-NEXT: { Stmt_compute_i_square__TO__B_write_from_A[i0] -> Stmt_A_must_write_42[i0] : 0 <= i0 <= 2999; Stmt_A_must_write_20[i0] -> Stmt_A_must_write_42[i0] : 0 <= i0 <= 2999; Stmt_A_must_write_20[i0] -> Stmt_compute_i_square__TO__B_write_from_A[i0] : 0 <= i0 <= 2999 } ; VALUE-NEXT: Reduction dependences: ; VALUE-NEXT: { } ; VALUE-NEXT: Transitive closure of reduction dependences: ; VALUE-NEXT: { }