1; RUN: opt %loadPolly -polly-dependences -analyze < %s | FileCheck %s 2; 3; CHECK: RAW dependences: 4; CHECK-NEXT: { Stmt_S2[i0, i1] -> Stmt_S1[i1] : i0 >= 0 and i0 < i1 <= 98; Stmt_S1[i0] -> Stmt_S2[i0, i0] : 0 <= i0 <= 98; Stmt_S2[i0, i0] -> Stmt_S3[i0] : 0 <= i0 <= 98; Stmt_S3[i0] -> Stmt_S2[o0, i0] : i0 >= 0 and i0 < o0 <= 98 } 5; CHECK-NEXT: WAR dependences: 6; CHECK-NEXT: { Stmt_S2[i0, i1] -> Stmt_S1[i1] : i0 >= 0 and i0 < i1 <= 98; Stmt_S1[i0] -> Stmt_S2[i0, i0] : 0 <= i0 <= 98; Stmt_S2[i0, i0] -> Stmt_S3[i0] : 0 <= i0 <= 98; Stmt_S3[i0] -> Stmt_S2[o0, i0] : i0 >= 0 and i0 < o0 <= 98 } 7; CHECK-NEXT: WAW dependences: 8; CHECK-NEXT: { Stmt_S2[i0, i1] -> Stmt_S1[i1] : i0 >= 0 and i0 < i1 <= 98; Stmt_S1[i0] -> Stmt_S2[i0, i0] : 0 <= i0 <= 98; Stmt_S2[i0, i0] -> Stmt_S3[i0] : 0 <= i0 <= 98; Stmt_S3[i0] -> Stmt_S2[o0, i0] : i0 >= 0 and i0 < o0 <= 98 } 9; CHECK-NEXT: Reduction dependences: 10; CHECK-NEXT: { Stmt_S2[i0, i1] -> Stmt_S2[1 + i0, i1] : (i0 >= 0 and 2 + i0 <= i1 <= 99) or (i0 <= 97 and 0 <= i1 < i0) } 11; 12; void f(int *sum) { 13; for (int i = 0; i < 99; i++) { 14; S1: sum[i] += 42; 15; for (int j = 0; j < 100; j++) 16; S2: sum[j] += i * j; 17; S3: sum[i] += 7; 18; } 19; } 20; 21target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-n32-S64" 22 23define void @f(i32* %sum) { 24entry: 25 br label %for.cond 26 27for.cond: ; preds = %for.inc8, %entry 28 %i.0 = phi i32 [ 0, %entry ], [ %inc9, %for.inc8 ] 29 %exitcond1 = icmp ne i32 %i.0, 99 30 br i1 %exitcond1, label %for.body, label %for.end10 31 32for.body: ; preds = %for.cond 33 br label %S1 34 35S1: ; preds = %for.body 36 %arrayidx = getelementptr inbounds i32, i32* %sum, i32 %i.0 37 %tmp = load i32, i32* %arrayidx, align 4 38 %add = add nsw i32 %tmp, 42 39 store i32 %add, i32* %arrayidx, align 4 40 br label %for.cond1 41 42for.cond1: ; preds = %for.inc, %S1 43 %j.0 = phi i32 [ 0, %S1 ], [ %inc, %for.inc ] 44 %exitcond = icmp ne i32 %j.0, 100 45 br i1 %exitcond, label %for.body3, label %for.end 46 47for.body3: ; preds = %for.cond1 48 br label %S2 49 50S2: ; preds = %for.body3 51 %mul = mul nsw i32 %i.0, %j.0 52 %arrayidx4 = getelementptr inbounds i32, i32* %sum, i32 %j.0 53 %tmp2 = load i32, i32* %arrayidx4, align 4 54 %add5 = add nsw i32 %tmp2, %mul 55 store i32 %add5, i32* %arrayidx4, align 4 56 br label %for.inc 57 58for.inc: ; preds = %S2 59 %inc = add nsw i32 %j.0, 1 60 br label %for.cond1 61 62for.end: ; preds = %for.cond1 63 br label %S3 64 65S3: ; preds = %for.end 66 %arrayidx6 = getelementptr inbounds i32, i32* %sum, i32 %i.0 67 %tmp3 = load i32, i32* %arrayidx6, align 4 68 %add7 = add nsw i32 %tmp3, 7 69 store i32 %add7, i32* %arrayidx6, align 4 70 br label %for.inc8 71 72for.inc8: ; preds = %S3 73 %inc9 = add nsw i32 %i.0, 1 74 br label %for.cond 75 76for.end10: ; preds = %for.cond 77 ret void 78} 79