compiletest to showcase generic entry points

Author: Firestar99

tests/compiletests/ui/spirv-attr/entry_generic.rs

@@ -0,0 +1,28 @@
+// build-pass
+// compile-flags: -C llvm-args=--disassemble
+// normalize-stderr-test "OpSource .*\n" -> ""
+// normalize-stderr-test "OpLine .*\n" -> ""
+// normalize-stderr-test "%\d+ = OpString .*\n" -> ""
+// normalize-stderr-test "(^|\n); .*" -> ""
+// normalize-stderr-test "OpCapability VulkanMemoryModel\n" -> ""
+// normalize-stderr-test "OpMemoryModel Logical Vulkan" -> "OpMemoryModel Logical Simple"
+// ignore-spv1.0
+// ignore-spv1.1
+// ignore-spv1.2
+// ignore-spv1.3
+// ignore-vulkan1.0
+// ignore-vulkan1.1
+
+use spirv_std::glam::*;
+use spirv_std::{Image, spirv};
+
+#[spirv(vertex)]
+pub fn main<T: Copy>(in1: T, out1: &mut T) {
+    *out1 = in1;
+}
+
+pub fn dummy() {
+    main::<u32>(0, &mut 0);
+    main::<f32>(0., &mut 0.);
+    main::<()>((), &mut ());
+}

tests/compiletests/ui/spirv-attr/entry_generic.stderr

@@ -0,0 +1,44 @@
+
+OpCapability Shader
+OpMemoryModel Logical Simple
+OpEntryPoint Vertex %1 "main::<f32>" %2 %3
+OpEntryPoint Vertex %4 "main::<u32>" %5 %6
+OpEntryPoint Vertex %7 "main::<()>"
+OpName %2 "in1"
+OpName %3 "out1"
+OpName %5 "in1"
+OpName %6 "out1"
+OpDecorate %2 Location 0
+OpDecorate %3 Location 0
+OpDecorate %5 Location 0
+OpDecorate %6 Location 0
+%9 = OpTypeFloat 32
+%10 = OpTypePointer Input %9
+%11 = OpTypePointer Output %9
+%12 = OpTypeVoid
+%13 = OpTypeFunction %12
+%2 = OpVariable  %10  Input
+%3 = OpVariable  %11  Output
+%14 = OpTypeInt 32 0
+%15 = OpTypePointer Input %14
+%16 = OpTypePointer Output %14
+%5 = OpVariable  %15  Input
+%6 = OpVariable  %16  Output
+%1 = OpFunction  %12  None %13
+%17 = OpLabel
+%18 = OpLoad  %9  %2
+OpStore %3 %18
+OpNoLine
+OpReturn
+OpFunctionEnd
+%4 = OpFunction  %12  None %13
+%19 = OpLabel
+%20 = OpLoad  %14  %5
+OpStore %6 %20
+OpNoLine
+OpReturn
+OpFunctionEnd
+%7 = OpFunction  %12  None %13
+%21 = OpLabel
+OpReturn
+OpFunctionEnd