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1; RUN: opt %loadNPMPolly -polly-stmt-granularity=bb '-passes=polly-custom<delicm>' -polly-print-delicm -disable-output < %s | FileCheck %s -match-full-lines2;3; Load (but not store) of A[j] hoisted, reduction not written in all iterations.4; FIXME: %join is not mapped because the MemoryKind::Value mapping does not5; encompass all iterations (last iteration is unused)6;7; void func(double *A) {8; for (int j = 0; j < 2; j += 1) { /* outer */9; double phi = 0.0;10; for (int i = 0; i < 4; i += 1) { /* reduction */11; if (i != 2) {12; phi += 4.2;13; A[j] = phi;14; }15; }16; }17; }18;19define void @func(ptr noalias nonnull %A) {20entry:21 br label %outer.preheader22 23outer.preheader:24 br label %outer.for25 26outer.for:27 %j = phi i32 [0, %outer.preheader], [%j.inc, %outer.inc]28 %j.cmp = icmp slt i32 %j, 229 br i1 %j.cmp, label %reduction.preheader, label %outer.exit30 31 32 reduction.preheader:33 %A_idx = getelementptr inbounds double, ptr %A, i32 %j34 %init = load double, ptr %A_idx35 br label %reduction.for36 37 reduction.for:38 %i = phi i32 [0, %reduction.preheader], [%i.inc, %reduction.inc]39 %phi = phi double [%init, %reduction.preheader], [%join, %reduction.inc]40 br label %body41 42 43 44 body:45 %cond = icmp ne i32 %i, 246 br i1 %cond, label %body_true, label %body_join47 48 body_true:49 %add = fadd double %phi, 4.250 store double %add, ptr %A_idx51 br label %body_join52 53 body_join:54 %join = phi double [%phi, %body], [%add, %body_true]55 br label %reduction.inc56 57 58 59 reduction.inc:60 %i.inc = add nuw nsw i32 %i, 161 %i.cmp = icmp slt i32 %i.inc, 462 br i1 %i.cmp, label %reduction.for, label %reduction.exit63 64 reduction.exit:65 br label %outer.inc66 67 68 69outer.inc:70 %j.inc = add nuw nsw i32 %j, 171 br label %outer.for72 73outer.exit:74 br label %return75 76return:77 ret void78}79 80 81; CHECK: Statistics {82; CHECK: Compatible overwrites: 183; CHECK: Overwrites mapped to: 184; CHECK: Value scalars mapped: 185; CHECK: PHI scalars mapped: 186; CHECK: }87 88; CHECK-NEXT: After accesses {89; CHECK-NEXT: Stmt_reduction_preheader90; CHECK-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 0]91; CHECK-NEXT: { Stmt_reduction_preheader[i0] -> MemRef_A[i0] };92; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 1]93; CHECK-NEXT: { Stmt_reduction_preheader[i0] -> MemRef_phi__phi[] };94; CHECK-NEXT: new: { Stmt_reduction_preheader[i0] -> MemRef_A[i0] };95; CHECK-NEXT: Stmt_reduction_for96; CHECK-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 1]97; CHECK-NEXT: { Stmt_reduction_for[i0, i1] -> MemRef_phi__phi[] };98; CHECK-NEXT: new: { Stmt_reduction_for[i0, i1] -> MemRef_A[i0] };99; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 1]100; CHECK-NEXT: { Stmt_reduction_for[i0, i1] -> MemRef_phi[] };101; CHECK-NEXT: new: { Stmt_reduction_for[i0, i1] -> MemRef_A[i0] };102; CHECK-NEXT: Stmt_body103; CHECK-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 1]104; CHECK-NEXT: { Stmt_body[i0, i1] -> MemRef_phi[] };105; CHECK-NEXT: new: { Stmt_body[i0, i1] -> MemRef_A[i0] };106; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 1]107; CHECK-NEXT: { Stmt_body[i0, i1] -> MemRef_join__phi[] };108; CHECK-NEXT: Stmt_body_true109; CHECK-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 1]110; CHECK-NEXT: { Stmt_body_true[i0, i1] -> MemRef_phi[] };111; CHECK-NEXT: new: { Stmt_body_true[i0, i1] -> MemRef_A[i0] : i1 <= 1; Stmt_body_true[i0, 3] -> MemRef_A[i0] };112; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 0]113; CHECK-NEXT: { Stmt_body_true[i0, i1] -> MemRef_A[i0] };114; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 1]115; CHECK-NEXT: { Stmt_body_true[i0, i1] -> MemRef_join__phi[] };116; CHECK-NEXT: Stmt_body_join117; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 1]118; CHECK-NEXT: { Stmt_body_join[i0, i1] -> MemRef_join[] };119; CHECK-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 1]120; CHECK-NEXT: { Stmt_body_join[i0, i1] -> MemRef_join__phi[] };121; CHECK-NEXT: Stmt_reduction_inc122; CHECK-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 1]123; CHECK-NEXT: { Stmt_reduction_inc[i0, i1] -> MemRef_join[] };124; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 1]125; CHECK-NEXT: { Stmt_reduction_inc[i0, i1] -> MemRef_phi__phi[] };126; CHECK-NEXT: new: { Stmt_reduction_inc[i0, i1] -> MemRef_A[i0] : i1 <= 2 };127; CHECK-NEXT: }128