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1; RUN: opt %loadNPMPolly '-passes=polly-custom<flatten;delicm>' -polly-delicm-compute-known=true -polly-print-delicm -disable-output < %s | FileCheck %s2;3; void func(double *A) {4; for (int j = 0; j < 2; j += 1) { /* outer */5; double phi = 0.0;6; for (int i = 0; i < 4; i += 1) { /* reduction */7; phi += 4.2;8; A[j] = phi;9; }10; A[j] = phi;11; }12; }13;14define void @func(ptr noalias nonnull %A) {15entry:16 br label %outer.preheader17 18outer.preheader:19 br label %outer.for20 21outer.for:22 %j = phi i32 [0, %outer.preheader], [%j.inc, %outer.inc]23 %j.cmp = icmp slt i32 %j, 224 br i1 %j.cmp, label %reduction.preheader, label %outer.exit25 26 27 reduction.preheader:28 br label %reduction.for29 30 reduction.for:31 %i = phi i32 [0, %reduction.preheader], [%i.inc, %reduction.inc]32 %phi = phi double [0.0, %reduction.preheader], [%add, %reduction.inc]33 %i.cmp = icmp slt i32 %i, 434 %A_idx = getelementptr inbounds double, ptr %A, i32 %j35 br i1 %i.cmp, label %body, label %reduction.exit36 37 38 39 body:40 %add = fadd double %phi, 4.241 store double %add, ptr %A_idx42 br label %reduction.inc43 44 45 46 reduction.inc:47 %i.inc = add nuw nsw i32 %i, 148 br label %reduction.for49 50 reduction.exit:51 store double %phi, ptr %A_idx52 br label %outer.inc53 54 55 56outer.inc:57 %j.inc = add nuw nsw i32 %j, 158 br label %outer.for59 60outer.exit:61 br label %return62 63return:64 ret void65}66 67 68; CHECK: After accesses {69; CHECK-NEXT: Stmt_reduction_preheader70; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 1]71; CHECK-NEXT: { Stmt_reduction_preheader[i0] -> MemRef_phi__phi[] };72; CHECK-NEXT: new: { Stmt_reduction_preheader[i0] -> MemRef_A[i0] };73; CHECK-NEXT: Stmt_reduction_for74; CHECK-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 1]75; CHECK-NEXT: { Stmt_reduction_for[i0, i1] -> MemRef_phi__phi[] };76; CHECK-NEXT: new: { Stmt_reduction_for[i0, i1] -> MemRef_A[i0] };77; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 1]78; CHECK-NEXT: { Stmt_reduction_for[i0, i1] -> MemRef_phi[] };79; CHECK-NEXT: new: { Stmt_reduction_for[i0, i1] -> MemRef_A[i0] };80; CHECK-NEXT: Stmt_body81; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 1]82; CHECK-NEXT: { Stmt_body[i0, i1] -> MemRef_add[] };83; CHECK-NEXT: new: { Stmt_body[i0, i1] -> MemRef_A[i0] };84; CHECK-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 1]85; CHECK-NEXT: { Stmt_body[i0, i1] -> MemRef_phi[] };86; CHECK-NEXT: new: { Stmt_body[i0, i1] -> MemRef_A[i0] };87; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 0]88; CHECK-NEXT: { Stmt_body[i0, i1] -> MemRef_A[i0] };89; CHECK-NEXT: Stmt_reduction_inc90; CHECK-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 1]91; CHECK-NEXT: { Stmt_reduction_inc[i0, i1] -> MemRef_add[] };92; CHECK-NEXT: new: { Stmt_reduction_inc[i0, i1] -> MemRef_A[i0] : i1 <= 7 - 5i0; Stmt_reduction_inc[1, 3] -> MemRef_A[1] };93; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 1]94; CHECK-NEXT: { Stmt_reduction_inc[i0, i1] -> MemRef_phi__phi[] };95; CHECK-NEXT: new: { Stmt_reduction_inc[i0, i1] -> MemRef_A[i0] };96; CHECK-NEXT: Stmt_reduction_exit97; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 0]98; CHECK-NEXT: { Stmt_reduction_exit[i0] -> MemRef_A[i0] };99; CHECK-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 1]100; CHECK-NEXT: { Stmt_reduction_exit[i0] -> MemRef_phi[] };101; CHECK-NEXT: new: { Stmt_reduction_exit[i0] -> MemRef_A[i0] };102; CHECK-NEXT: }103