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1; RUN: opt %loadNPMPolly '-passes=polly-custom<flatten;delicm>' -polly-print-delicm -disable-output < %s | FileCheck %s2;3; void func(double *A) {4; for (int j = 0; j < 2; j += 1) { /* outer */5; for (int i = 0; i < 4; i += 1) { /* reduction */6; double phi = A[j];7; phi += 4.2;8; A[j] = phi;9; }10; }11; }12;13; There is nothing to do in this case. All accesses are in %body.14;15define void @func(ptr noalias nonnull %A) {16entry:17 br label %outer.preheader18 19outer.preheader:20 br label %outer.for21 22outer.for:23 %j = phi i32 [0, %outer.preheader], [%j.inc, %outer.inc]24 %j.cmp = icmp slt i32 %j, 225 br i1 %j.cmp, label %reduction.preheader, label %outer.exit26 27 28 reduction.preheader:29 br label %reduction.for30 31 reduction.for:32 %i = phi i32 [0, %reduction.preheader], [%i.inc, %reduction.inc]33 br label %body34 35 36 37 body:38 %A_idx = getelementptr inbounds double, ptr %A, i32 %j39 %val = load double, ptr %A_idx40 %add = fadd double %val, 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 %i.cmp = icmp slt i32 %i.inc, 449 br i1 %i.cmp, label %reduction.for, label %reduction.exit50 51 reduction.exit:52 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: No modification has been made69