; RUN: opt %loadPolly -polly-optree-normalize-phi=true -polly-optree -analyze < %s | FileCheck %s -match-full-lines ; ; Rematerialize a load. ; ; for (int j = 0; j < n; j += 1) { ; bodyA: ; double val = B[j]; ; ; bodyB: ; double phi = val; ; ; bodyC: ; A[j] = phi; ; } ; define void @func(i32 %n, double* noalias nonnull %A, double* noalias nonnull %B) { entry: br label %for for: %j = phi i32 [0, %entry], [%j.inc, %inc] %j.cmp = icmp slt i32 %j, %n br i1 %j.cmp, label %bodyA, label %exit bodyA: %B_idx = getelementptr inbounds double, double* %B, i32 %j %val = load double, double* %B_idx br label %bodyB bodyB: %phi = phi double [%val, %bodyA] br label %bodyC bodyC: %A_idx = getelementptr inbounds double, double* %A, i32 %j store double %phi, double* %A_idx br label %inc inc: %j.inc = add nuw nsw i32 %j, 1 br label %for exit: br label %return return: ret void } ; CHECK: Statistics { ; CHECK: Reloads: 2 ; CHECK: } ; CHECK-NEXT: After statements { ; CHECK-NEXT: Stmt_bodyA ; CHECK-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 0] ; CHECK-NEXT: [n] -> { Stmt_bodyA[i0] -> MemRef_B[i0] }; ; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 1] ; CHECK-NEXT: [n] -> { Stmt_bodyA[i0] -> MemRef_phi__phi[] }; ; CHECK-NEXT: Instructions { ; CHECK-NEXT: %val = load double, double* %B_idx ; CHECK-NEXT: } ; CHECK-NEXT: Stmt_bodyB ; CHECK-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 1] ; CHECK-NEXT: [n] -> { Stmt_bodyB[i0] -> MemRef_phi__phi[] }; ; CHECK-NEXT: new: [n] -> { Stmt_bodyB[i0] -> MemRef_B[i0] }; ; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 1] ; CHECK-NEXT: [n] -> { Stmt_bodyB[i0] -> MemRef_phi[] }; ; CHECK-NEXT: Instructions { ; CHECK-NEXT: %phi = phi double [ %val, %bodyA ] ; CHECK-NEXT: } ; CHECK-NEXT: Stmt_bodyC ; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 0] ; CHECK-NEXT: [n] -> { Stmt_bodyC[i0] -> MemRef_A[i0] }; ; CHECK-NEXT: ReadAccess := [Reduction Type: NONE] [Scalar: 1] ; CHECK-NEXT: [n] -> { Stmt_bodyC[i0] -> MemRef_phi[] }; ; CHECK-NEXT: new: [n] -> { Stmt_bodyC[i0] -> MemRef_B[i0] }; ; CHECK-NEXT: Instructions { ; CHECK-NEXT: store double %phi, double* %A_idx ; CHECK-NEXT: } ; CHECK-NEXT: }