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1; RUN: opt %loadNPMPolly '-passes=polly-custom<delicm>' -polly-print-delicm -disable-output < %s | FileCheck %s2;3; void func(double *A) {4; fsomeval = 21.0 + 21.0;5; for (int j = 0; j < 2; j += 1) { /* outer */6; double phi = 0.0;7; for (int i = 0; i < 4; i += 1) /* reduction */8; phi += 4.2;9; A[j] = fsomeval;10; }11; }12;13; Check that fsomeval is not mapped to A[j] because it is read-only.14; There is no advantage in mapping values not modified within the SCoP.15;16define void @func(ptr noalias nonnull %A) {17entry:18 %fsomeval = fadd double 21.0, 21.019 br label %outer.preheader20 21outer.preheader:22 br label %outer.for23 24outer.for:25 %j = phi i32 [0, %outer.preheader], [%j.inc, %outer.inc]26 %j.cmp = icmp slt i32 %j, 227 br i1 %j.cmp, label %reduction.preheader, label %outer.exit28 29 30 reduction.preheader:31 br label %reduction.for32 33 reduction.for:34 %i = phi i32 [0, %reduction.preheader], [%i.inc, %reduction.inc]35 %phi = phi double [0.0, %reduction.preheader], [%add, %reduction.inc]36 %i.cmp = icmp slt i32 %i, 437 br i1 %i.cmp, label %body, label %reduction.exit38 39 40 41 body:42 %add = fadd double %phi, 4.243 br label %reduction.inc44 45 46 47 reduction.inc:48 %i.inc = add nuw nsw i32 %i, 149 br label %reduction.for50 51 reduction.exit:52 %A_idx = getelementptr inbounds double, ptr %A, i32 %j53 store double %fsomeval, ptr %A_idx54 br label %outer.inc55 56 57 58outer.inc:59 %j.inc = add nuw nsw i32 %j, 160 br label %outer.for61 62outer.exit:63 br label %return64 65return:66 ret void67}68 69 70; CHECK: Statistics {71; CHECK: Compatible overwrites: 172; CHECK: }73; CHECK: No modification has been made74