1 files changed, 78 insertions, 0 deletions
diff --git a/test/Analysis/Delinearization/multidim_only_ivs_2d_nested.ll b/test/Analysis/Delinearization/multidim_only_ivs_2d_nested.ll
new file mode 100644
index 0000000..7207420
--- /dev/null
+++ b/test/Analysis/Delinearization/multidim_only_ivs_2d_nested.ll
@@ -0,0 +1,78 @@
+; RUN: opt < %s -analyze -delinearize | FileCheck %s
+
+; extern void bar(long n, long m, double A[n][m]);
+;
+; void foo(long a, long b) {
+;   for (long n = 1; n < a; ++n)
+;   for (long m = 1; m < b; ++m) {
+;     double A[n][m];
+;     for (long i = 0; i < n; i++)
+;       for (long j = 0; j < m; j++)
+;         A[i][j] = 1.0;
+;     bar(n, m, A);
+;   }
+; }
+
+; AddRec: {{%vla.us,+,{8,+,8}<%for.cond7.preheader.lr.ph.split.us.us>}<%for.body9.lr.ph.us.us>,+,8}<%for.body9.us.us>
+; CHECK: Base offset: %vla.us
+; CHECK: ArrayDecl[UnknownSize][{1,+,1}<%for.cond7.preheader.lr.ph.split.us.us>] with elements of sizeof(double) bytes.
+; CHECK: ArrayRef[{0,+,1}<nuw><nsw><%for.body9.lr.ph.us.us>][{0,+,1}<nuw><nsw><%for.body9.us.us>]
+
+define void @foo(i64 %a, i64 %b) nounwind uwtable {
+entry:
+  %cmp43 = icmp sgt i64 %a, 1
+  br i1 %cmp43, label %for.cond1.preheader.lr.ph, label %for.end19
+
+for.cond1.preheader.lr.ph:                        ; preds = %entry
+  %cmp224 = icmp sgt i64 %b, 1
+  br label %for.cond1.preheader
+
+for.cond1.preheader:                              ; preds = %for.inc17, %for.cond1.preheader.lr.ph
+  %indvars.iv51 = phi i64 [ 1, %for.cond1.preheader.lr.ph ], [ %indvars.iv.next52, %for.inc17 ]
+  br i1 %cmp224, label %for.cond7.preheader.lr.ph.split.us.us, label %for.inc17
+
+for.end13.us:                                     ; preds = %for.inc11.us.us
+  call void @bar(i64 %indvars.iv51, i64 %indvars.iv48, double* %vla.us) nounwind
+  call void @llvm.stackrestore(i8* %1)
+  %indvars.iv.next49 = add i64 %indvars.iv48, 1
+  %exitcond54 = icmp eq i64 %indvars.iv.next49, %b
+  br i1 %exitcond54, label %for.inc17, label %for.cond7.preheader.lr.ph.split.us.us
+
+for.inc11.us.us:                                  ; preds = %for.body9.us.us
+  %inc12.us.us = add nsw i64 %i.023.us.us, 1
+  %exitcond53 = icmp eq i64 %inc12.us.us, %indvars.iv51
+  br i1 %exitcond53, label %for.end13.us, label %for.body9.lr.ph.us.us
+
+for.body9.lr.ph.us.us:                            ; preds = %for.cond7.preheader.lr.ph.split.us.us, %for.inc11.us.us
+  %i.023.us.us = phi i64 [ 0, %for.cond7.preheader.lr.ph.split.us.us ], [ %inc12.us.us, %for.inc11.us.us ]
+  %0 = mul nsw i64 %i.023.us.us, %indvars.iv48
+  br label %for.body9.us.us
+
+for.body9.us.us:                                  ; preds = %for.body9.us.us, %for.body9.lr.ph.us.us
+  %j.021.us.us = phi i64 [ 0, %for.body9.lr.ph.us.us ], [ %inc.us.us, %for.body9.us.us ]
+  %arrayidx.sum.us.us = add i64 %j.021.us.us, %0
+  %arrayidx10.us.us = getelementptr inbounds double* %vla.us, i64 %arrayidx.sum.us.us
+  store double 1.000000e+00, double* %arrayidx10.us.us, align 8
+  %inc.us.us = add nsw i64 %j.021.us.us, 1
+  %exitcond50 = icmp eq i64 %inc.us.us, %indvars.iv48
+  br i1 %exitcond50, label %for.inc11.us.us, label %for.body9.us.us
+
+for.cond7.preheader.lr.ph.split.us.us:            ; preds = %for.cond1.preheader, %for.end13.us
+  %indvars.iv48 = phi i64 [ %indvars.iv.next49, %for.end13.us ], [ 1, %for.cond1.preheader ]
+  %1 = call i8* @llvm.stacksave()
+  %2 = mul nuw i64 %indvars.iv48, %indvars.iv51
+  %vla.us = alloca double, i64 %2, align 16
+  br label %for.body9.lr.ph.us.us
+
+for.inc17:                                        ; preds = %for.end13.us, %for.cond1.preheader
+  %indvars.iv.next52 = add i64 %indvars.iv51, 1
+  %exitcond55 = icmp eq i64 %indvars.iv.next52, %a
+  br i1 %exitcond55, label %for.end19, label %for.cond1.preheader
+
+for.end19:                                        ; preds = %for.inc17, %entry
+  ret void
+}
+
+declare i8* @llvm.stacksave() nounwind
+declare void @bar(i64, i64, double*)
+declare void @llvm.stackrestore(i8*) nounwind