tests: add test for the OpName of a generic function.

Author: eddyb

tests/ui/dis/generic-fn-op-name.rs

@@ -0,0 +1,19 @@
+// Test that generic functions' `OpName` correctly include generic arguments.
+
+// build-pass
+// compile-flags: -C llvm-args=--disassemble-globals
+// normalize-stderr-test "OpCapability VulkanMemoryModel\n" -> ""
+// normalize-stderr-test "OpExtension .SPV_KHR_vulkan_memory_model.\n" -> ""
+// normalize-stderr-test "OpMemoryModel Logical Vulkan" -> "OpMemoryModel Logical Simple"
+
+#![feature(const_generics)]
+#![allow(incomplete_features)]
+
+use spirv_std::image::Dimensionality;
+
+fn generic<T, const DIM: Dimensionality>() {}
+
+#[spirv(fragment)]
+pub fn main() {
+    generic::<f32, { Dimensionality::TwoD }>();
+}

tests/ui/dis/generic-fn-op-name.stderr

@@ -0,0 +1,13 @@
+OpCapability Float64
+OpCapability Int16
+OpCapability Int64
+OpCapability Int8
+OpCapability Shader
+OpMemoryModel Logical Simple
+OpEntryPoint Fragment %1 "main"
+OpExecutionMode %1 OriginUpperLeft
+%2 = OpString "$OPSTRING_FILENAME/generic-fn-op-name.rs"
+OpName %3 "generic_fn_op_name::generic"
+OpName %4 "generic_fn_op_name::main"
+%5 = OpTypeVoid
+%6 = OpTypeFunction %5