rename target to polkavm

Signed-off-by: xermicus <cyrill@parity.io>

crates/llvm-context/src/polkavm/evm/memory.rs

@@ -0,0 +1,70 @@
+//! Translates the heap memory operations.
+
+use crate::polkavm::context::address_space::AddressSpace;
+use crate::polkavm::context::pointer::Pointer;
+use crate::polkavm::context::Context;
+use crate::polkavm::Dependency;
+
+/// Translates the `mload` instruction.
+/// Uses the main heap.
+pub fn load<'ctx, D>(
+    context: &mut Context<'ctx, D>,
+    offset: inkwell::values::IntValue<'ctx>,
+) -> anyhow::Result<inkwell::values::BasicValueEnum<'ctx>>
+where
+    D: Dependency + Clone,
+{
+    let pointer = Pointer::new_with_offset(
+        context,
+        AddressSpace::Heap,
+        context.field_type(),
+        offset,
+        "memory_load_pointer",
+    );
+    context.build_load(pointer, "memory_load_result")
+}
+
+/// Translates the `mstore` instruction.
+/// Uses the main heap.
+pub fn store<'ctx, D>(
+    context: &mut Context<'ctx, D>,
+    offset: inkwell::values::IntValue<'ctx>,
+    value: inkwell::values::IntValue<'ctx>,
+) -> anyhow::Result<()>
+where
+    D: Dependency + Clone,
+{
+    let pointer = Pointer::new_with_offset(
+        context,
+        AddressSpace::Heap,
+        context.field_type(),
+        offset,
+        "memory_store_pointer",
+    );
+    context.build_store(pointer, value)?;
+    Ok(())
+}
+
+/// Translates the `mstore8` instruction.
+/// Uses the main heap.
+pub fn store_byte<'ctx, D>(
+    context: &mut Context<'ctx, D>,
+    offset: inkwell::values::IntValue<'ctx>,
+    value: inkwell::values::IntValue<'ctx>,
+) -> anyhow::Result<()>
+where
+    D: Dependency + Clone,
+{
+    let byte_type = context.byte_type();
+    let value = context
+        .builder()
+        .build_int_truncate(value, byte_type, "mstore8_value")?;
+    let pointer = Pointer::new_with_offset(
+        context,
+        AddressSpace::Heap,
+        byte_type,
+        offset,
+        "mstore8_destination",
+    );
+    context.build_store(pointer, value)
+}