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1; RUN: opt %loadNPMPolly -polly-stmt-granularity=bb '-passes=polly-custom<import-jscop;simplify-0>' -polly-print-simplify -polly-import-jscop-postfix=transformed -disable-output < %s | FileCheck -match-full-lines %s2;3; Combine four partial stores into two.4; The stores write to the same array, but never the same element.5;6; for (int j = 0; j < n; j += 1) {7; A[0] = 21.0;8; A[1] = 42.0;9; A[0] = 21.0;10; A[1] = 42.0;11; }12;13define void @coalesce_disjointelements(i32 %n, ptr noalias nonnull %A) {14entry:15 br label %for16 17for:18 %j = phi i32 [0, %entry], [%j.inc, %inc]19 %j.cmp = icmp slt i32 %j, %n20 br i1 %j.cmp, label %body, label %exit21 22 body:23 %A_1 = getelementptr inbounds double, ptr %A, i32 124 store double 21.0, ptr %A25 store double 42.0, ptr %A_126 store double 21.0, ptr %A27 store double 42.0, ptr %A_128 br label %inc29 30inc:31 %j.inc = add nuw nsw i32 %j, 132 br label %for33 34exit:35 br label %return36 37return:38 ret void39}40 41 42; CHECK: Statistics {43; CHECK: Overwrites removed: 044; CHECK: Partial writes coalesced: 245; CHECK: }46 47; CHECK: After accesses {48; CHECK-NEXT: Stmt_body49; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 0]50; CHECK-NEXT: [n] -> { Stmt_body[i0] -> MemRef_A[0] };51; CHECK-NEXT: new: [n] -> { Stmt_body[i0] -> MemRef_A[0] };52; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 0]53; CHECK-NEXT: [n] -> { Stmt_body[i0] -> MemRef_A[1] };54; CHECK-NEXT: new: [n] -> { Stmt_body[i0] -> MemRef_A[1] };55; CHECK-NEXT: }56