From e04abb54bc69d90a503852d60a89e8bac7b60ec8 Mon Sep 17 00:00:00 2001
From: Yong He <yonghe@outlook.com>
Date: Wed, 25 Oct 2023 12:21:35 -0700
Subject: Fix single iteration loop detection logic. (#3287)

Co-authored-by: Yong He <yhe@nvidia.com>
---
 tests/ir/loop-unroll-simplify.slang | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
 create mode 100644 tests/ir/loop-unroll-simplify.slang

(limited to 'tests')

diff --git a/tests/ir/loop-unroll-simplify.slang b/tests/ir/loop-unroll-simplify.slang
new file mode 100644
index 000000000..f935b8b1e
--- /dev/null
+++ b/tests/ir/loop-unroll-simplify.slang
@@ -0,0 +1,14 @@
+//TEST:SIMPLE(filecheck=CHECK): -entry main -target hlsl -profile cs_6_3
+
+RWStructuredBuffer<int> output;
+
+void main()
+{
+    // Test that the unrolled code does not have trivial single iteration loops.
+    // CHECK-NOT: break
+    [ForceUnroll]
+    for (int i = 0; i < 2; i++)
+    {
+        output[i] = i;
+    }
+}
-- 
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