; RUN: opt %loadPolly -polly-dependences -analyze < %s | FileCheck %s ; ; CHECK: RAW dependences: ; CHECK-NEXT: [N] -> { Stmt_S0[] -> Stmt_S1[o0] : N >= 11 and 0 <= o0 <= 1023; Stmt_S1[i0] -> Stmt_S2[] : N >= 11 and 0 <= i0 <= 1023 } ; CHECK-NEXT: WAR dependences: ; CHECK-NEXT: [N] -> { Stmt_S1[i0] -> Stmt_S2[] : N >= 11 and 0 <= i0 <= 1023 } ; CHECK-NEXT: WAW dependences: ; CHECK-NEXT: [N] -> { Stmt_S0[] -> Stmt_S1[o0] : N >= 11 and 0 <= o0 <= 1023; Stmt_S1[i0] -> Stmt_S2[] : N >= 11 and 0 <= i0 <= 1023 } ; CHECK-NEXT: Reduction dependences: ; CHECK-NEXT: [N] -> { Stmt_S1[i0] -> Stmt_S1[1 + i0] : N >= 11 and 0 <= i0 <= 1022 } ; ; void f(int *sum, int N) { ; if (N >= 10) { ; S0: *sum = 0; ; for (int i = 0; i < 1024; i++) ; S1: *sum += i; ; S2: *sum = *sum * 3; ; } ; } target datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-n32-S64" define void @f(i32* %sum, i32 %N) { entry: br label %entry.1 entry.1: %excond = icmp sgt i32 %N, 10 br i1 %excond, label %S0, label %f.end S0: store i32 0, i32* %sum, align 4 br label %for.cond for.cond: ; preds = %for.inc, %S0 %i.0 = phi i32 [ 0, %S0 ], [ %inc, %for.inc ] %exitcond = icmp ne i32 %i.0, 1024 br i1 %exitcond, label %S1, label %S2 S1: ; preds = %for.cond %tmp = load i32, i32* %sum, align 4 %add = add nsw i32 %tmp, %i.0 store i32 %add, i32* %sum, align 4 br label %for.inc for.inc: ; preds = %S1 %inc = add nsw i32 %i.0, 1 br label %for.cond S2: ; preds = %for.cond %tmp1 = load i32, i32* %sum, align 4 %mul = mul nsw i32 %tmp1, 3 store i32 %mul, i32* %sum, align 4 br label %f.end f.end: ret void }