; RUN: opt %loadPolly -polly-flatten-schedule -polly-delicm-compute-known=true -polly-delicm -analyze < %s | FileCheck %s ; ; void func(double *A) { ; for (int j = 0; j < 2; j += 1) { /* outer */ ; double phi = 0.0; ; for (int i = 0; i < 4; i += 1) { /* reduction */ ; phi += 4.2; ; A[j] = phi; ; } ; A[j] = phi; ; } ; } ; define void @func(double* noalias nonnull %A) { entry: br label %outer.preheader outer.preheader: br label %outer.for outer.for: %j = phi i32 [0, %outer.preheader], [%j.inc, %outer.inc] %j.cmp = icmp slt i32 %j, 2 br i1 %j.cmp, label %reduction.preheader, label %outer.exit reduction.preheader: br label %reduction.for reduction.for: %i = phi i32 [0, %reduction.preheader], [%i.inc, %reduction.inc] %phi = phi double [0.0, %reduction.preheader], [%add, %reduction.inc] %i.cmp = icmp slt i32 %i, 4 %A_idx = getelementptr inbounds double, double* %A, i32 %j br i1 %i.cmp, label %body, label %reduction.exit body: %add = fadd double %phi, 4.2 store double %add, double* %A_idx br label %reduction.inc reduction.inc: %i.inc = add nuw nsw i32 %i, 1 br label %reduction.for reduction.exit: store double %phi, double* %A_idx br label %outer.inc outer.inc: %j.inc = add nuw nsw i32 %j, 1 br label %outer.for outer.exit: br label %return return: ret void } ; CHECK: After accesses { ; CHECK-NEXT: Stmt_reduction_preheader ; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 1] ; CHECK-NEXT: { Stmt_reduction_preheader[i0] -> MemRef_phi__phi[] }; ; CHECK-NEXT: new: { Stmt_reduction_preheader[i0] -> MemRef_A[i0] }; ; CHECK-NEXT: Stmt_reduction_for ; CHECK-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 1] ; CHECK-NEXT: { Stmt_reduction_for[i0, i1] -> MemRef_phi__phi[] }; ; CHECK-NEXT: new: { Stmt_reduction_for[i0, i1] -> MemRef_A[i0] }; ; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 1] ; CHECK-NEXT: { Stmt_reduction_for[i0, i1] -> MemRef_phi[] }; ; CHECK-NEXT: new: { Stmt_reduction_for[i0, i1] -> MemRef_A[i0] }; ; CHECK-NEXT: Stmt_body ; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 1] ; CHECK-NEXT: { Stmt_body[i0, i1] -> MemRef_add[] }; ; CHECK-NEXT: new: { Stmt_body[i0, i1] -> MemRef_A[i0] }; ; CHECK-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 1] ; CHECK-NEXT: { Stmt_body[i0, i1] -> MemRef_phi[] }; ; CHECK-NEXT: new: { Stmt_body[i0, i1] -> MemRef_A[i0] }; ; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 0] ; CHECK-NEXT: { Stmt_body[i0, i1] -> MemRef_A[i0] }; ; CHECK-NEXT: Stmt_reduction_inc ; CHECK-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 1] ; CHECK-NEXT: { Stmt_reduction_inc[i0, i1] -> MemRef_add[] }; ; CHECK-NEXT: new: { Stmt_reduction_inc[i0, i1] -> MemRef_A[i0] : i1 <= 7 - 5i0; Stmt_reduction_inc[1, 3] -> MemRef_A[1] }; ; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 1] ; CHECK-NEXT: { Stmt_reduction_inc[i0, i1] -> MemRef_phi__phi[] }; ; CHECK-NEXT: new: { Stmt_reduction_inc[i0, i1] -> MemRef_A[i0] }; ; CHECK-NEXT: Stmt_reduction_exit ; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 0] ; CHECK-NEXT: { Stmt_reduction_exit[i0] -> MemRef_A[i0] }; ; CHECK-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 1] ; CHECK-NEXT: { Stmt_reduction_exit[i0] -> MemRef_phi[] }; ; CHECK-NEXT: new: { Stmt_reduction_exit[i0] -> MemRef_A[i0] }; ; CHECK-NEXT: }