; RUN: opt %loadPolly -polly-delicm -analyze < %s | FileCheck %s ; ; The domain of bb14 contradicts the SCoP's assumptions. This leads to ; 'anything goes' inside the statement since it is never executed, ; including changing a memory write inside to ; [p_0, arg1] -> { Stmt_bb14[i0] -> MemRef_tmp[o0] : false } ; (i.e.: never write) ; target datalayout = "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64" define void @f(i16* %arg, i32 %arg1) { bb: %tmp = alloca [24 x i32], align 4 br label %bb2 bb2: %tmp3 = phi i32 [ 0, %bb ], [ %tmp32, %bb34 ] br i1 true, label %bb5, label %bb4 bb4: br label %bb24 bb5: %tmp6 = sub nsw i32 %arg1, %tmp3 %tmp7 = add i32 %tmp6, -1 %tmp8 = icmp eq i32 %tmp3, 0 %tmp9 = getelementptr inbounds i16, i16* %arg, i32 0 br i1 %tmp8, label %bb13, label %bb10 bb10: %tmp11 = getelementptr inbounds i16, i16* %tmp9, i32 %tmp7 %tmp12 = load i16, i16* %tmp11, align 2 br label %bb14 bb13: br label %bb31 bb14: %tmp15 = phi i32 [ 0, %bb10 ], [ %tmp21, %bb14 ] %tmp16 = phi i16 [ undef, %bb10 ], [ %tmp19, %bb14 ] %tmp17 = getelementptr inbounds [24 x i32], [24 x i32]* %tmp, i32 0, i32 %tmp15 %tmp18 = getelementptr inbounds i16, i16* %tmp9, i32 0 %tmp19 = load i16, i16* %tmp18, align 2 store i32 undef, i32* %tmp17, align 4 %tmp20 = call i32 asm "#", "=r,r"(i16 %tmp19) readnone %tmp21 = add nuw nsw i32 %tmp15, 1 %tmp22 = icmp eq i32 %tmp21, %tmp3 br i1 %tmp22, label %bb23, label %bb14 bb23: br label %bb31 bb24: %tmp25 = phi i32 [ %tmp30, %bb24 ], [ 0, %bb4 ] %tmp26 = mul nsw i32 %tmp25, %arg1 %tmp27 = getelementptr inbounds i16, i16* %arg, i32 %tmp26 %tmp28 = getelementptr inbounds i16, i16* %tmp27, i32 0 %tmp29 = load i16, i16* %tmp28, align 2 %tmp30 = add nuw nsw i32 %tmp25, 1 br i1 false, label %bb31, label %bb24 bb31: %tmp32 = add nuw nsw i32 %tmp3, 1 br i1 undef, label %bb34, label %bb33 bb33: unreachable bb34: br label %bb2 } ; CHECK: Stmt_bb14 ; CHECK: MustWriteAccess := [Reduction Type: NONE] [Scalar: 1] ; CHECK-NEXT: [p_0, arg1] -> { Stmt_bb14[i0] -> MemRef_tmp16__phi[] }; ; CHECK-NEXT: new: [p_0, arg1] -> { Stmt_bb14[i0] -> MemRef_tmp[o0] : false };