1 ; RUN: opt < %s -loop-accesses -analyze | FileCheck %s 2 ; RUN: opt -passes='require<scalar-evolution>,require<aa>,loop(print-access-info)' -disable-output < %s 2>&1 | FileCheck %s 3 4 ; Test to confirm LAA will find store to invariant address. 5 ; Inner loop has a store to invariant address. 6 ; 7 ; for(; i < itr; i++) { 8 ; for(; j < itr; j++) { 9 ; var1[j] = ++var2[i] + var1[j]; 10 ; } 11 ; } 12 13 ; CHECK: Store to invariant address was found in loop. 14 15 define void @foo(i32* nocapture %var1, i32* nocapture %var2, i32 %itr) #0 { 16 entry: 17 %cmp20 = icmp sgt i32 %itr, 0 18 br i1 %cmp20, label %for.cond1.preheader, label %for.end11 19 20 for.cond1.preheader: ; preds = %entry, %for.inc9 21 %indvars.iv23 = phi i64 [ %indvars.iv.next24, %for.inc9 ], [ 0, %entry ] 22 %j.022 = phi i32 [ %j.1.lcssa, %for.inc9 ], [ 0, %entry ] 23 %cmp218 = icmp slt i32 %j.022, %itr 24 br i1 %cmp218, label %for.body3.lr.ph, label %for.inc9 25 26 for.body3.lr.ph: ; preds = %for.cond1.preheader 27 %arrayidx = getelementptr inbounds i32, i32* %var2, i64 %indvars.iv23 28 %0 = sext i32 %j.022 to i64 29 br label %for.body3 30 31 for.body3: ; preds = %for.body3, %for.body3.lr.ph 32 %indvars.iv = phi i64 [ %0, %for.body3.lr.ph ], [ %indvars.iv.next, %for.body3 ] 33 %1 = load i32, i32* %arrayidx, align 4 34 %inc = add nsw i32 %1, 1 35 store i32 %inc, i32* %arrayidx, align 4 36 %arrayidx5 = getelementptr inbounds i32, i32* %var1, i64 %indvars.iv 37 %2 = load i32, i32* %arrayidx5, align 4 38 %add = add nsw i32 %inc, %2 39 store i32 %add, i32* %arrayidx5, align 4 40 %indvars.iv.next = add nsw i64 %indvars.iv, 1 41 %lftr.wideiv = trunc i64 %indvars.iv.next to i32 42 %exitcond = icmp eq i32 %lftr.wideiv, %itr 43 br i1 %exitcond, label %for.inc9, label %for.body3 44 45 for.inc9: ; preds = %for.body3, %for.cond1.preheader 46 %j.1.lcssa = phi i32 [ %j.022, %for.cond1.preheader ], [ %itr, %for.body3 ] 47 %indvars.iv.next24 = add nuw nsw i64 %indvars.iv23, 1 48 %lftr.wideiv25 = trunc i64 %indvars.iv.next24 to i32 49 %exitcond26 = icmp eq i32 %lftr.wideiv25, %itr 50 br i1 %exitcond26, label %for.end11, label %for.cond1.preheader 51 52 for.end11: ; preds = %for.inc9, %entry 53 ret void 54 } 55
