; RUN: opt %loadPolly -polly-delicm -pass-remarks-missed=polly-delicm -disable-output < %s 2>&1 | FileCheck %s ; ; llvm.org/PR34485 ; llvm.org/PR34989 ; ; The memset causes the array A to be divided into i8-sized subelements. ; The the regular store then writes multiple of these subelements, which ; we do not support currently. ; ; void func(double *A) { ; memset(A, 0, 4); ; 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; ; } ; } declare void @llvm.memset.p0f64.i64(double* nocapture, i8, i64, i32, i1) define void @func(double* noalias nonnull %A) { entry: br label %outer.for outer.for: %j = phi i32 [0, %entry], [%j.inc, %outer.inc] call void @llvm.memset.p0f64.i64(double* %A, i8 0, i64 4, i32 1, i1 false) %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] %i.cmp = icmp slt i32 %i, 4 br i1 %i.cmp, label %body, label %reduction.exit body: %add = fadd double %phi, 4.2 br label %reduction.inc reduction.inc: %i.inc = add nuw nsw i32 %i, 1 br label %reduction.for reduction.exit: %A_idx = getelementptr inbounds double, double* %A, i32 %j store double %phi, double* %A_idx 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: skipped possible mapping target because it writes more than one element