1 files changed, 45 insertions, 0 deletions
diff --git a/tests/language-feature/spirv-asm/imageoperands-warning.slang b/tests/language-feature/spirv-asm/imageoperands-warning.slang
new file mode 100644
index 000000000..fd22e6ae4
--- /dev/null
+++ b/tests/language-feature/spirv-asm/imageoperands-warning.slang
@@ -0,0 +1,45 @@
+//TEST(compute):COMPARE_COMPUTE(filecheck-buffer=CHECK):-vk -shaderobj -emit-spirv-directly
+//DIAGNOSTIC_TEST:SIMPLE(filecheck=DIAG):
+
+//TEST_INPUT:ubuffer(data=[1 2 3 4], stride=4):out,name=outputBuffer
+RWStructuredBuffer<int> outputBuffer;
+
+// CHECK:      1
+// CHECK-NEXT: 1
+// CHECK-NEXT: 1
+// CHECK-NEXT: 1
+
+//TEST_INPUT: Texture2D(size=4, content = one):name t2D
+Texture2D<float> t2D;
+//TEST_INPUT: Sampler:name samplerState
+SamplerState samplerState;
+
+//
+// This test tests that we don't emit a warning for the variadic operand list
+// to OpImageSample. The reason to test for this is that "ImageOperands" aren't
+// specified as variadic in the json SPIR-V instruction descriptions.
+//
+[numthreads(4, 1, 1)]
+void computeMain(uint3 dispatchThreadID : SV_DispatchThreadID)
+{
+    int i = dispatchThreadID.x;
+    float2 loc = float2(0.5, 0.5);
+    float lod = 0;
+    float r = spirv_asm
+    {
+        // The type of our sampled image
+        %sampledImageType = OpTypeSampledImage $$Texture2D<float>;
+        // Combine the image with the sampler
+        %sampledImage : %sampledImageType = OpSampledImage $t2D $samplerState;
+        // Perform a sample
+        %sampled : __sampledType(float) = OpImageSampleExplicitLod %sampledImage $loc
+            // Put some sampling operands in here to check that they don't warn
+            // DIAG-NOT: warning{{.*}}too many operands
+            Lod $lod;
+        // Samples in SPIR-V always return a 4-vector of the component type,
+        // the __truncate function will drop elements so it fits into the
+        // desired output type
+        __truncate $$float result __sampledType(float) %sampled;
+    };
+    outputBuffer[i] = int(r);
+}