108 lines · plain
1; RUN: opt %loadNPMPolly -polly-stmt-granularity=bb '-passes=polly-custom<delicm>' -polly-print-delicm -disable-output < %s | FileCheck %s2;3; Register-promoted reduction but without preheader.4;5; void func(double *A) {6; for (int j = 0; j < 2; j += 1) { /* outer */7; double phi = A[j];8; for (int i = 0; i < 4; i += 1) /* reduction */9; phi += 4.2;10; A[j] = phi;11; }12; }13;14define void @func(ptr noalias nonnull %A) {15entry:16 br label %outer.preheader17 18outer.preheader:19 br label %outer.for20 21outer.for:22 %j = phi i32 [0, %outer.preheader], [%j.inc, %outer.inc]23 %j.cmp = icmp slt i32 %j, 224 %A_idx = getelementptr inbounds double, ptr %A, i32 %j25 %init = load double, ptr %A_idx26 br i1 %j.cmp, label %reduction.for, label %outer.exit27 28 29 30 reduction.for:31 %i = phi i32 [0, %outer.for], [%i.inc, %reduction.inc]32 %phi = phi double [%init, %outer.for], [%add, %reduction.inc]33 br label %body34 35 36 37 body:38 %add = fadd double %phi, 4.239 br label %reduction.inc40 41 42 43 reduction.inc:44 %i.inc = add nuw nsw i32 %i, 145 %i.cmp = icmp slt i32 %i.inc, 446 br i1 %i.cmp, label %reduction.for, label %reduction.exit47 48 reduction.exit:49 store double %add, ptr %A_idx50 br label %outer.inc51 52 53 54outer.inc:55 %j.inc = add nuw nsw i32 %j, 156 br label %outer.for57 58outer.exit:59 br label %return60 61return:62 ret void63}64 65 66; CHECK: Statistics {67; CHECK: Compatible overwrites: 168; CHECK: Overwrites mapped to: 169; CHECK: Value scalars mapped: 270; CHECK: PHI scalars mapped: 171; CHECK: }72 73; CHECK: After accesses {74; CHECK-NEXT: Stmt_outer_for75; CHECK-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 0]76; CHECK-NEXT: { Stmt_outer_for[i0] -> MemRef_A[i0] };77; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 1]78; CHECK-NEXT: { Stmt_outer_for[i0] -> MemRef_phi__phi[] };79; CHECK-NEXT: new: { Stmt_outer_for[i0] -> MemRef_A[i0] : i0 <= 1 };80; CHECK-NEXT: Stmt_reduction_for81; CHECK-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 1]82; CHECK-NEXT: { Stmt_reduction_for[i0, i1] -> MemRef_phi__phi[] };83; CHECK-NEXT: new: { Stmt_reduction_for[i0, i1] -> MemRef_A[i0] };84; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 1]85; CHECK-NEXT: { Stmt_reduction_for[i0, i1] -> MemRef_phi[] };86; CHECK-NEXT: new: { Stmt_reduction_for[i0, i1] -> MemRef_A[i0] };87; CHECK-NEXT: Stmt_body88; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 1]89; CHECK-NEXT: { Stmt_body[i0, i1] -> MemRef_add[] };90; CHECK-NEXT: new: { Stmt_body[i0, i1] -> MemRef_A[i0] };91; CHECK-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 1]92; CHECK-NEXT: { Stmt_body[i0, i1] -> MemRef_phi[] };93; CHECK-NEXT: new: { Stmt_body[i0, i1] -> MemRef_A[i0] };94; CHECK-NEXT: Stmt_reduction_inc95; CHECK-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 1]96; CHECK-NEXT: { Stmt_reduction_inc[i0, i1] -> MemRef_add[] };97; CHECK-NEXT: new: { Stmt_reduction_inc[i0, i1] -> MemRef_A[i0] };98; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 1]99; CHECK-NEXT: { Stmt_reduction_inc[i0, i1] -> MemRef_phi__phi[] };100; CHECK-NEXT: new: { Stmt_reduction_inc[i0, i1] -> MemRef_A[i0] : i1 <= 2 };101; CHECK-NEXT: Stmt_reduction_exit102; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 0]103; CHECK-NEXT: { Stmt_reduction_exit[i0] -> MemRef_A[i0] };104; CHECK-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 1]105; CHECK-NEXT: { Stmt_reduction_exit[i0] -> MemRef_add[] };106; CHECK-NEXT: new: { Stmt_reduction_exit[i0] -> MemRef_A[i0] };107; CHECK-NEXT: }108