; RUN: opt %loadPolly -polly-stmt-granularity=bb -polly-delicm -analyze < %s | FileCheck %s -match-full-lines ; ; Hosted reduction load (but not the store) without preheader. ; ; void func(double *A) { ; for (int j = 0; j < 2; j += 1) { /* outer */ ; double phi = 0.0; ; for (int i = 0; i < 4; i += 1) { /* reduction */ ; phi += 4.2; ; A[j] = phi; ; } ; } ; } ; define void @func(double* noalias nonnull %A) { entry: br label %outer.preheader outer.preheader: br label %outer.for outer.for: %j = phi i32 [0, %outer.preheader], [%j.inc, %outer.inc] %j.cmp = icmp slt i32 %j, 2 br i1 %j.cmp, label %reduction.for, label %outer.exit reduction.for: %i = phi i32 [0, %outer.for], [%i.inc, %reduction.inc] %phi = phi double [0.0, %outer.for], [%add, %reduction.inc] br label %body body: %add = fadd double %phi, 4.2 %A_idx = getelementptr inbounds double, double* %A, i32 %j store double %add, double* %A_idx br label %reduction.inc reduction.inc: %i.inc = add nuw nsw i32 %i, 1 %i.cmp = icmp slt i32 %i.inc, 4 br i1 %i.cmp, label %reduction.for, label %reduction.exit reduction.exit: br label %outer.inc outer.inc: %j.inc = add nuw nsw i32 %j, 1 br label %outer.for outer.exit: br label %return return: ret void } ; CHECK: Statistics { ; CHECK: Compatible overwrites: 1 ; CHECK: Overwrites mapped to: 1 ; CHECK: Value scalars mapped: 2 ; CHECK: PHI scalars mapped: 1 ; CHECK: } ; CHECK-NEXT: After accesses { ; CHECK-NEXT: Stmt_outer_for ; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 1] ; CHECK-NEXT: { Stmt_outer_for[i0] -> MemRef_phi__phi[] }; ; CHECK-NEXT: new: { Stmt_outer_for[i0] -> MemRef_A[i0] : i0 <= 1 }; ; CHECK-NEXT: Stmt_reduction_for ; CHECK-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 1] ; CHECK-NEXT: { Stmt_reduction_for[i0, i1] -> MemRef_phi__phi[] }; ; CHECK-NEXT: new: { Stmt_reduction_for[i0, i1] -> MemRef_A[i0] }; ; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 1] ; CHECK-NEXT: { Stmt_reduction_for[i0, i1] -> MemRef_phi[] }; ; CHECK-NEXT: new: { Stmt_reduction_for[i0, i1] -> MemRef_A[i0] }; ; CHECK-NEXT: Stmt_body ; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 1] ; CHECK-NEXT: { Stmt_body[i0, i1] -> MemRef_add[] }; ; CHECK-NEXT: new: { Stmt_body[i0, i1] -> MemRef_A[i0] }; ; CHECK-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 1] ; CHECK-NEXT: { Stmt_body[i0, i1] -> MemRef_phi[] }; ; CHECK-NEXT: new: { Stmt_body[i0, i1] -> MemRef_A[i0] }; ; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 0] ; CHECK-NEXT: { Stmt_body[i0, i1] -> MemRef_A[i0] }; ; CHECK-NEXT: Stmt_reduction_inc ; CHECK-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 1] ; CHECK-NEXT: { Stmt_reduction_inc[i0, i1] -> MemRef_add[] }; ; CHECK-NEXT: new: { Stmt_reduction_inc[i0, i1] -> MemRef_A[i0] }; ; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 1] ; CHECK-NEXT: { Stmt_reduction_inc[i0, i1] -> MemRef_phi__phi[] }; ; CHECK-NEXT: new: { Stmt_reduction_inc[i0, i1] -> MemRef_A[i0] : i1 <= 2 }; ; CHECK-NEXT: }