1; RUN: opt %loadNPMPolly -polly-stmt-granularity=bb '-passes=polly-import-jscop,print<polly-simplify>' -polly-import-jscop-postfix=transformed -disable-output < %s | FileCheck -match-full-lines %s 2; 3; Combine 3 partial accesses into one. 4; 5; for (int j = 0; j < n; j += 1) { 6; A[0] = 42.0; 7; A[0] = 42.0; 8; A[0] = 42.0; 9; } 10; 11define void @coalesce_3partials(i32 %n, ptr noalias nonnull %A) { 12entry: 13 br label %for 14 15for: 16 %j = phi i32 [0, %entry], [%j.inc, %inc] 17 %j.cmp = icmp slt i32 %j, %n 18 br i1 %j.cmp, label %body, label %exit 19 20 body: 21 store double 42.0, ptr %A 22 store double 42.0, ptr %A 23 store double 42.0, ptr %A 24 br label %inc 25 26inc: 27 %j.inc = add nuw nsw i32 %j, 1 28 br label %for 29 30exit: 31 br label %return 32 33return: 34 ret void 35} 36 37 38; CHECK: Statistics { 39; CHECK: Overwrites removed: 0 40; CHECK: Partial writes coalesced: 2 41; CHECK: } 42 43; CHECK: After accesses { 44; CHECK-NEXT: Stmt_body 45; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 0] 46; CHECK-NEXT: [n] -> { Stmt_body[i0] -> MemRef_A[0] }; 47; CHECK-NEXT: new: [n] -> { Stmt_body[i0] -> MemRef_A[0] }; 48; CHECK-NEXT: } 49