2 files changed, 53 insertions, 0 deletions
diff --git a/tests/compute/mutating-and-inout.slang b/tests/compute/mutating-and-inout.slang
new file mode 100644
index 000000000..d06933b77
--- /dev/null
+++ b/tests/compute/mutating-and-inout.slang
@@ -0,0 +1,49 @@
+// mutating-and-inout.slang
+
+// Test that calling a `[mutating]` method on an `inout` function parameter works.
+
+//TEST(compute):COMPARE_COMPUTE:
+
+//TEST_INPUT:ubuffer(data=[0 0 0 0], stride=4):out,name=outputBuffer
+RWStructuredBuffer<int> outputBuffer;
+
+struct A
+{
+	int x;
+
+	[mutating] void doThings(inout int y)
+	{
+		int tmp = x;
+		x = y;
+		y = tmp;
+	}
+}
+
+int doThings(inout A a, int val)
+{
+	a.doThings(val);
+	return val;
+}
+
+int test(int val)
+{
+	A a = { val };
+	int b = val ^ 3;
+
+	int c = doThings(a, b);
+
+	int result = 0;
+	result = result*16 + a.x;
+	result = result*16 + b;
+	result = result*16 + c;
+
+	return result;
+}
+
+[numthreads(4, 1, 1)]
+void computeMain(uint3 tid : SV_DispatchThreadID)
+{
+	int val = tid.x;
+	val = test(val);
+	outputBuffer[tid.x] = val;
+}
diff --git a/tests/compute/mutating-and-inout.slang.expected.txt b/tests/compute/mutating-and-inout.slang.expected.txt
new file mode 100644
index 000000000..6c842da55
--- /dev/null
+++ b/tests/compute/mutating-and-inout.slang.expected.txt
@@ -0,0 +1,4 @@
+330
+221
+112
+3