From 01c658b8915e7ad9e92e9f681abf7781d1e867a7 Mon Sep 17 00:00:00 2001
From: ReinUsesLisp <reinuseslisp@airmail.cc>
Date: Wed, 31 Oct 2018 04:16:26 -0300
Subject: [PATCH] Add OpLoad

---
 include/sirit/sirit.h |  4 ++++
 src/insts/memory.cpp  | 10 ++++++++++
 2 files changed, 14 insertions(+)

diff --git a/include/sirit/sirit.h b/include/sirit/sirit.h
index b54699f..3387ac0 100644
--- a/include/sirit/sirit.h
+++ b/include/sirit/sirit.h
@@ -200,6 +200,10 @@ class Module {
     Ref Variable(Ref result_type, spv::StorageClass storage_class,
                  Ref initializer = nullptr);
 
+    /// Load through a pointer.
+    Ref Load(Ref result_type, Ref pointer,
+             std::optional<spv::MemoryAccessMask> memory_access = {});
+
     /// Create a pointer into a composite object that can be used with OpLoad
     /// and OpStore.
     Ref AccessChain(Ref result_type, Ref base,
diff --git a/src/insts/memory.cpp b/src/insts/memory.cpp
index b3e55b8..bf0147d 100644
--- a/src/insts/memory.cpp
+++ b/src/insts/memory.cpp
@@ -20,6 +20,16 @@ Ref Module::Variable(Ref result_type, spv::StorageClass storage_class,
     return AddCode(op);
 }
 
+Ref Module::Load(Ref result_type, Ref pointer,
+                 std::optional<spv::MemoryAccessMask> memory_access) {
+    auto op{new Op(spv::Op::OpLoad, bound++, result_type)};
+    op->Add(pointer);
+    if (memory_access) {
+        AddEnum(op, *memory_access);
+    }
+    return AddCode(op);
+}
+
 Ref Module::AccessChain(Ref result_type, Ref base,
                         const std::vector<Ref>& indexes) {
     assert(indexes.size() > 0);