From a582641b9925435f148d87983955cc1b3f356e81 Mon Sep 17 00:00:00 2001
From: ReinUsesLisp <reinuseslisp@airmail.cc>
Date: Tue, 28 Aug 2018 04:46:18 -0300
Subject: [PATCH] Add OpConstantNull

---
 include/sirit/sirit.h  | 3 +++
 src/insts/constant.cpp | 4 ++++
 tests/main.cpp         | 2 +-
 3 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/include/sirit/sirit.h b/include/sirit/sirit.h
index eb68c00..508a33f 100644
--- a/include/sirit/sirit.h
+++ b/include/sirit/sirit.h
@@ -141,6 +141,9 @@ public:
     Ref ConstantSampler(Ref result_type, spv::SamplerAddressingMode addressing_mode,
                         bool normalized, spv::SamplerFilterMode filter_mode);
 
+    /// Returns a null constant value.
+    Ref ConstantNull(Ref result_type);
+
     // Function
 
     /// Declares a function.
diff --git a/src/insts/constant.cpp b/src/insts/constant.cpp
index 90af194..cf3b405 100644
--- a/src/insts/constant.cpp
+++ b/src/insts/constant.cpp
@@ -41,4 +41,8 @@ Ref Module::ConstantSampler(Ref result_type, spv::SamplerAddressingMode addressi
     return AddDeclaration(op);
 }
 
+Ref Module::ConstantNull(Ref result_type) {
+    return AddDeclaration(new Op(spv::Op::OpConstantNull, bound, result_type));
+}
+
 } // namespace Sirit
diff --git a/tests/main.cpp b/tests/main.cpp
index 2df624e..b853d07 100644
--- a/tests/main.cpp
+++ b/tests/main.cpp
@@ -40,7 +40,6 @@ public:
         ConstantTrue(TypeBool());
         ConstantTrue(TypeBool());
         ConstantFalse(TypeBool());
-        Constant(TypeFloat(64), Literal(6342.2));
         Constant(TypeFloat(64), Literal(6342.21));
         Constant(TypeFloat(32), Literal(6342.21f));
         Constant(TypeFloat(16), Literal(30u));
@@ -50,6 +49,7 @@ public:
         ConstantComposite(TypeVector(TypeFloat(32), 2),
                           {Constant(TypeFloat(32), Literal(50.0f)),
                            Constant(TypeFloat(32), Literal(50.0f))});
+        ConstantNull(TypeVector(TypeInt(64, false), 4));
 
         auto main_type{TypeFunction(TypeVoid())};
         auto main_func{Emit(Function(TypeVoid(), spv::FunctionControlMask::MaskNone, main_type))};