1; RUN: opt < %s -analyze -delinearize | FileCheck %s 2 3; extern void bar(long n, long m, double A[n][m]); 4; 5; void foo(long a, long b) { 6; for (long n = 1; n < a; ++n) 7; for (long m = 1; m < b; ++m) { 8; double A[n][m]; 9; for (long i = 0; i < n; i++) 10; for (long j = 0; j < m; j++) 11; A[i][j] = 1.0; 12; bar(n, m, A); 13; } 14; } 15 16; AddRec: {{%vla.us,+,{8,+,8}<%for.cond7.preheader.lr.ph.split.us.us>}<%for.body9.lr.ph.us.us>,+,8}<%for.body9.us.us> 17; CHECK: Base offset: %vla.us 18; CHECK: ArrayDecl[UnknownSize][{1,+,1}<%for.cond7.preheader.lr.ph.split.us.us>] with elements of sizeof(double) bytes. 19; CHECK: ArrayRef[{0,+,1}<nuw><nsw><%for.body9.lr.ph.us.us>][{0,+,1}<nuw><nsw><%for.body9.us.us>] 20 21define void @foo(i64 %a, i64 %b) nounwind uwtable { 22entry: 23 %cmp43 = icmp sgt i64 %a, 1 24 br i1 %cmp43, label %for.cond1.preheader.lr.ph, label %for.end19 25 26for.cond1.preheader.lr.ph: ; preds = %entry 27 %cmp224 = icmp sgt i64 %b, 1 28 br label %for.cond1.preheader 29 30for.cond1.preheader: ; preds = %for.inc17, %for.cond1.preheader.lr.ph 31 %indvars.iv51 = phi i64 [ 1, %for.cond1.preheader.lr.ph ], [ %indvars.iv.next52, %for.inc17 ] 32 br i1 %cmp224, label %for.cond7.preheader.lr.ph.split.us.us, label %for.inc17 33 34for.end13.us: ; preds = %for.inc11.us.us 35 call void @bar(i64 %indvars.iv51, i64 %indvars.iv48, double* %vla.us) nounwind 36 call void @llvm.stackrestore(i8* %1) 37 %indvars.iv.next49 = add i64 %indvars.iv48, 1 38 %exitcond54 = icmp eq i64 %indvars.iv.next49, %b 39 br i1 %exitcond54, label %for.inc17, label %for.cond7.preheader.lr.ph.split.us.us 40 41for.inc11.us.us: ; preds = %for.body9.us.us 42 %inc12.us.us = add nsw i64 %i.023.us.us, 1 43 %exitcond53 = icmp eq i64 %inc12.us.us, %indvars.iv51 44 br i1 %exitcond53, label %for.end13.us, label %for.body9.lr.ph.us.us 45 46for.body9.lr.ph.us.us: ; preds = %for.cond7.preheader.lr.ph.split.us.us, %for.inc11.us.us 47 %i.023.us.us = phi i64 [ 0, %for.cond7.preheader.lr.ph.split.us.us ], [ %inc12.us.us, %for.inc11.us.us ] 48 %0 = mul nsw i64 %i.023.us.us, %indvars.iv48 49 br label %for.body9.us.us 50 51for.body9.us.us: ; preds = %for.body9.us.us, %for.body9.lr.ph.us.us 52 %j.021.us.us = phi i64 [ 0, %for.body9.lr.ph.us.us ], [ %inc.us.us, %for.body9.us.us ] 53 %arrayidx.sum.us.us = add i64 %j.021.us.us, %0 54 %arrayidx10.us.us = getelementptr inbounds double* %vla.us, i64 %arrayidx.sum.us.us 55 store double 1.000000e+00, double* %arrayidx10.us.us, align 8 56 %inc.us.us = add nsw i64 %j.021.us.us, 1 57 %exitcond50 = icmp eq i64 %inc.us.us, %indvars.iv48 58 br i1 %exitcond50, label %for.inc11.us.us, label %for.body9.us.us 59 60for.cond7.preheader.lr.ph.split.us.us: ; preds = %for.cond1.preheader, %for.end13.us 61 %indvars.iv48 = phi i64 [ %indvars.iv.next49, %for.end13.us ], [ 1, %for.cond1.preheader ] 62 %1 = call i8* @llvm.stacksave() 63 %2 = mul nuw i64 %indvars.iv48, %indvars.iv51 64 %vla.us = alloca double, i64 %2, align 16 65 br label %for.body9.lr.ph.us.us 66 67for.inc17: ; preds = %for.end13.us, %for.cond1.preheader 68 %indvars.iv.next52 = add i64 %indvars.iv51, 1 69 %exitcond55 = icmp eq i64 %indvars.iv.next52, %a 70 br i1 %exitcond55, label %for.end19, label %for.cond1.preheader 71 72for.end19: ; preds = %for.inc17, %entry 73 ret void 74} 75 76declare i8* @llvm.stacksave() nounwind 77declare void @bar(i64, i64, double*) 78declare void @llvm.stackrestore(i8*) nounwind 79