[willow]: initial IRBuilder API (#9)

- add IRBuilder api
- remove `name` field from `Value`
- fix some bugs in IList interface
- more verifier tests

1 files changed, 31 insertions, 0 deletions

diff --git a/willow/lib/IR/TypeContext.cpp b/willow/lib/IR/TypeContext.cpp
index e69de29..21e5173 100644
--- a/willow/lib/IR/TypeContext.cpp
+++ b/willow/lib/IR/TypeContext.cpp
@@ -0,0 +1,31 @@
+#include <willow/IR/TypeContext.h>
+
+namespace willow {
+
+Type TypeContext::IntType(std::size_t width) {
+  auto [it, _] = icache.try_emplace(IntTypeImpl::Key{width},
+                                    std::make_unique<IntTypeImpl>(width));
+
+  return Type(it->second.get());
+}
+
+Type TypeContext::PtrType(Type pointee) {
+  auto [it, _] = pcache.try_emplace(
+      PtrTypeImpl::Key{pointee}, std::make_unique<PtrTypeImpl>(pointee));
+
+  return Type(it->second.get());
+}
+
+Type TypeContext::VoidType() { return Type(voidty.get()); }
+
+Type TypeContext::BasicBlockType() { return Type{labelty.get()}; }
+
+Type TypeContext::FunctionType(Type ret, std::initializer_list<Type> params) {
+  auto [it, _] =
+      fncache.try_emplace(FunctionTypeImpl::Key{ret, params},
+                          std::make_unique<FunctionTypeImpl>(ret, params));
+
+  return Type(it->second.get());
+};
+
+};