From 1f3130055956dbe441f7fc6849b189624a05f7df Mon Sep 17 00:00:00 2001
From: Yong He <yonghe@outlook.com>
Date: Thu, 1 Sep 2022 10:01:36 -0700
Subject: Public interface for arithmetic types in stdlib. (#2389)

---
 .../language-feature/generics/arithmetic-ops.slang | 44 ++++++++++++++++++++++
 .../generics/arithmetic-ops.slang.expected.txt     |  5 +++
 2 files changed, 49 insertions(+)
 create mode 100644 tests/language-feature/generics/arithmetic-ops.slang
 create mode 100644 tests/language-feature/generics/arithmetic-ops.slang.expected.txt

(limited to 'tests')

diff --git a/tests/language-feature/generics/arithmetic-ops.slang b/tests/language-feature/generics/arithmetic-ops.slang
new file mode 100644
index 000000000..d2f1af47f
--- /dev/null
+++ b/tests/language-feature/generics/arithmetic-ops.slang
@@ -0,0 +1,44 @@
+//TEST(compute):COMPARE_COMPUTE: -shaderobj -output-using-type
+//TEST(compute):COMPARE_COMPUTE: -vk -shaderobj -output-using-type
+T simpleTest<T : IArithmetic>(T v0, T v1)
+{
+    if (v0 > T(0))
+    {
+        return v0 + v1;
+    }
+    else
+    {
+        return -v0 * v1;
+    }
+}
+
+interface IMyInterface : IArithmetic
+{
+    int myMethod();
+}
+
+extension float : IMyInterface
+{
+    int myMethod() { return 4; }
+}
+
+extension double : IMyInterface
+{
+    int myMethod() { return 8; }
+}
+
+int genTest<T : IMyInterface>(T v0, T v1)
+{
+    vector<T, 2> v = vector<T, 2>(v0, v1);
+    return (v.x + v.y).myMethod();
+}
+
+//TEST_INPUT:ubuffer(data=[0 0 0 0], stride=4):out,name=outputBuffer
+RWStructuredBuffer<int> outputBuffer;
+
+[numthreads(4, 1, 1)]
+void computeMain(int3 dispatchThreadID : SV_DispatchThreadID)
+{
+    int tid = dispatchThreadID.x;
+    outputBuffer[tid] = int(simpleTest<float>(1.0f, 2.0f)) + genTest<float>(1.0f, 2.0f);
+}
diff --git a/tests/language-feature/generics/arithmetic-ops.slang.expected.txt b/tests/language-feature/generics/arithmetic-ops.slang.expected.txt
new file mode 100644
index 000000000..5c4343b55
--- /dev/null
+++ b/tests/language-feature/generics/arithmetic-ops.slang.expected.txt
@@ -0,0 +1,5 @@
+type: int32_t
+7
+7
+7
+7
-- 
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