wip

Signed-off-by: Cyrill Leutwiler <bigcyrill@hotmail.com>

crates/solidity/src/yul/parser/statement/assignment.rs

@@ -121,11 +121,6 @@ where
     ) -> anyhow::Result<()> {
         context.set_debug_location(self.location.line, 0, None)?;
 
-        let value = match self.initializer.into_llvm(context, None)? {
-            Some(value) => value,
-            None => return Ok(()),
-        };
-
         if self.bindings.len() == 1 {
             let identifier = self.bindings.remove(0);
             let pointer = context
@@ -139,9 +134,27 @@ where
                         identifier.inner,
                     )
                 })?;
-            context.build_store(pointer, value.access(context)?)?;
+
+            let mut assignment_pointer = Some(pointer.value);
+            let value = match self
+                .initializer
+                .into_llvm(context, &mut assignment_pointer)?
+            {
+                Some(value) => value,
+                None => return Ok(()),
+            };
+
+            if assignment_pointer.is_some() {
+                context.build_store(pointer, value.access(context)?)?;
+            }
+
             return Ok(());
         }
+
+        let value = match self.initializer.into_llvm(context, &mut None)? {
+            Some(value) => value,
+            None => return Ok(()),
+        };
         let value = value.access(context)?;
         let llvm_type = value.into_struct_value().get_type();
         let tuple_pointer = context.build_alloca(llvm_type, "assignment_pointer");

crates/solidity/src/yul/parser/statement/block.rs

@@ -184,7 +184,7 @@ where
                     block.into_llvm(context)?;
                 }
                 Statement::Expression(expression) => {
-                    expression.into_llvm(context, None)?;
+                    expression.into_llvm(context, &mut None)?;
                 }
                 Statement::VariableDeclaration(statement) => statement.into_llvm(context)?,
                 Statement::Assignment(statement) => statement.into_llvm(context)?,

crates/solidity/src/yul/parser/statement/expression/function_call/mod.rs

@@ -118,7 +118,7 @@ impl FunctionCall {
     pub fn into_llvm<'ctx, D>(
         mut self,
         context: &mut revive_llvm_context::PolkaVMContext<'ctx, D>,
-        assignment_pointer: Option<inkwell::values::PointerValue<'ctx>>,
+        assignment_pointer: &mut Option<inkwell::values::PointerValue<'ctx>>,
     ) -> anyhow::Result<Option<inkwell::values::BasicValueEnum<'ctx>>>
     where
         D: revive_llvm_context::PolkaVMDependency + Clone,
@@ -130,7 +130,7 @@ impl FunctionCall {
                 let mut values = Vec::with_capacity(self.arguments.len());
                 for argument in self.arguments.into_iter().rev() {
                     let value = argument
-                        .into_llvm(context, None)?
+                        .into_llvm(context, &mut None)?
                         .expect("Always exists")
                         .access(context)?;
                     values.push(value);
@@ -417,8 +417,8 @@ impl FunctionCall {
                 revive_llvm_context::polkavm_evm_memory::load(
                     context,
                     arguments[0].into_int_value(),
+                    assignment_pointer,
                 )
-                .map(Some)
             }
             Name::MStore => {
                 let arguments = self.pop_arguments_llvm::<D, 2>(context)?;
@@ -994,7 +994,7 @@ impl FunctionCall {
         for expression in self.arguments.drain(0..N).rev() {
             arguments.push(
                 expression
-                    .into_llvm(context, None)?
+                    .into_llvm(context, &mut None)?
                     .expect("Always exists")
                     .access(context)?,
             );
@@ -1014,7 +1014,11 @@ impl FunctionCall {
     {
         let mut arguments = Vec::with_capacity(N);
         for expression in self.arguments.drain(0..N).rev() {
-            arguments.push(expression.into_llvm(context, None)?.expect("Always exists"));
+            arguments.push(
+                expression
+                    .into_llvm(context, &mut None)?
+                    .expect("Always exists"),
+            );
         }
         arguments.reverse();
 

crates/solidity/src/yul/parser/statement/expression/mod.rs

@@ -101,7 +101,7 @@ impl Expression {
     pub fn into_llvm<'ctx, D>(
         self,
         context: &mut revive_llvm_context::PolkaVMContext<'ctx, D>,
-        assignment_pointer: Option<inkwell::values::PointerValue<'ctx>>,
+        assignment_pointer: &mut Option<inkwell::values::PointerValue<'ctx>>,
     ) -> anyhow::Result<Option<revive_llvm_context::PolkaVMArgument<'ctx>>>
     where
         D: revive_llvm_context::PolkaVMDependency + Clone,

crates/solidity/src/yul/parser/statement/for_loop.rs

@@ -76,7 +76,7 @@ where
         context.set_basic_block(condition_block);
         let condition = self
             .condition
-            .into_llvm(context, None)?
+            .into_llvm(context, &mut None)?
             .expect("Always exists")
             .access(context)?
             .into_int_value();

crates/solidity/src/yul/parser/statement/if_conditional.rs

@@ -55,7 +55,7 @@ where
     fn into_llvm(self, context: &mut revive_llvm_context::PolkaVMContext<D>) -> anyhow::Result<()> {
         let condition = self
             .condition
-            .into_llvm(context, None)?
+            .into_llvm(context, &mut None)?
             .expect("Always exists")
             .access(context)?
             .into_int_value();

crates/solidity/src/yul/parser/statement/switch/mod.rs

@@ -123,7 +123,7 @@ where
     D: revive_llvm_context::PolkaVMDependency + Clone,
 {
     fn into_llvm(self, context: &mut revive_llvm_context::PolkaVMContext<D>) -> anyhow::Result<()> {
-        let scrutinee = self.expression.into_llvm(context, None)?;
+        let scrutinee = self.expression.into_llvm(context, &mut None)?;
 
         if self.cases.is_empty() {
             if let Some(block) = self.default {

crates/solidity/src/yul/parser/statement/variable_declaration.rs

@@ -110,8 +110,9 @@ where
                 .borrow_mut()
                 .insert_stack_pointer(identifier.inner.clone(), pointer);
 
+            let mut assignment_pointer = Some(pointer.value);
             let value = if let Some(expression) = self.expression {
-                match expression.into_llvm(context, None)? {
+                match expression.into_llvm(context, &mut assignment_pointer)? {
                     Some(mut value) => {
                         if let Some(constant) = value.constant.take() {
                             context
@@ -128,7 +129,9 @@ where
             } else {
                 r#type.const_zero().as_basic_value_enum()
             };
-            context.build_store(pointer, value)?;
+            if assignment_pointer.is_some() {
+                context.build_store(pointer, value)?;
+            }
             return Ok(());
         }
 
@@ -156,7 +159,7 @@ where
             None => return Ok(()),
         };
         let location = expression.location();
-        let expression = match expression.into_llvm(context, None)? {
+        let expression = match expression.into_llvm(context, &mut None)? {
             Some(expression) => expression,
             None => return Ok(()),
         };