1 files changed, 36 insertions, 0 deletions
diff --git a/test/Transforms/LoopDistribute/pr28443.ll b/test/Transforms/LoopDistribute/pr28443.ll
new file mode 100644
index 000000000000..0b8839c84770
--- /dev/null
+++ b/test/Transforms/LoopDistribute/pr28443.ll
@@ -0,0 +1,36 @@
+; RUN: opt -basicaa -loop-distribute -verify-loop-info -verify-dom-info -S \
+; RUN:   < %s | FileCheck %s
+
+target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
+target triple = "x86_64-unknown-linux-gnu"
+
+define void @fn1(i64 %a, i64* %b) {
+entry:
+  br label %for.body
+
+for.body:
+  %add75.epil = phi i64 [ %add7.epil, %for.body ], [ %a, %entry ]
+  %add1.epil = add nsw i64 %add75.epil, 268435457
+  %arrayidx.epil = getelementptr inbounds i64, i64* %b, i64 %add1.epil
+  %load = load i64, i64* %arrayidx.epil, align 8
+  %add5.epil = add nsw i64 %add75.epil, 805306369
+  %arrayidx6.epil = getelementptr inbounds i64, i64* %b, i64 %add5.epil
+  store i64 %load, i64* %arrayidx6.epil, align 8
+  %add7.epil = add nsw i64 %add75.epil, 2
+  %epil.iter.cmp = icmp eq i64 %add7.epil, 0
+  br i1 %epil.iter.cmp, label %for.end, label %for.body
+
+  ; CHECK: %[[phi:.*]]  = phi i64
+  ; CHECK: %[[add1:.*]] = add nsw i64 %[[phi]], 268435457
+  ; CHECK: %[[gep1:.*]] = getelementptr inbounds i64, i64* %b, i64 %[[add1]]
+  ; CHECK: %[[load:.*]] = load i64, i64* %[[gep1]], align 8
+  ; CHECK: %[[add2:.*]] = add nsw i64 %[[phi]], 805306369
+  ; CHECK: %[[gep2:.*]] = getelementptr inbounds i64, i64* %b, i64 %[[add2]]
+  ; CHECK: store i64 %[[load]], i64* %[[gep2]], align 8
+  ; CHECK: %[[incr:.*]] = add nsw i64 %[[phi]], 2
+  ; CHECK: %[[cmp:.*]]  = icmp eq i64 %[[incr]], 0
+  ; CHECK: br i1 %[[cmp]]
+
+for.end:
+  ret void
+}