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llvm-context: lazy handling of function arguments and immutable data (#282)

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- Lazily load function arguments so that they can be passed as pointers.
- Lazily call the immutable store function to avoid storing zero sized
immutable data.

---------

Signed-off-by: Cyrill Leutwiler <bigcyrill@hotmail.com>
This commit is contained in:
xermicus
2025-04-14 15:54:59 +02:00
committed by GitHub
parent ad3315346c
commit 431b5a2ce5
18 changed files with 268 additions and 177 deletions
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crates/llvm-context/src/polkavm/context/pointer/storage.rs
+37 -7
View File
@@ -19,7 +19,7 @@ where
fn r#type<'ctx>(context: &Context<'ctx, D>) -> inkwell::types::FunctionType<'ctx> {
context
.word_type()
.fn_type(&[context.word_type().into()], false)
.fn_type(&[context.llvm().ptr_type(Default::default()).into()], false)
}
fn emit_body<'ctx>(
@@ -59,7 +59,7 @@ where
fn r#type<'ctx>(context: &Context<'ctx, D>) -> inkwell::types::FunctionType<'ctx> {
context
.word_type()
.fn_type(&[context.word_type().into()], false)
.fn_type(&[context.llvm().ptr_type(Default::default()).into()], false)
}
fn emit_body<'ctx>(
@@ -94,7 +94,10 @@ where
fn r#type<'ctx>(context: &Context<'ctx, D>) -> inkwell::types::FunctionType<'ctx> {
context.void_type().fn_type(
&[context.word_type().into(), context.word_type().into()],
&[
context.llvm().ptr_type(Default::default()).into(),
context.llvm().ptr_type(Default::default()).into(),
],
false,
)
}
@@ -138,7 +141,10 @@ where
fn r#type<'ctx>(context: &Context<'ctx, D>) -> inkwell::types::FunctionType<'ctx> {
context.void_type().fn_type(
&[context.word_type().into(), context.word_type().into()],
&[
context.llvm().ptr_type(Default::default()).into(),
context.llvm().ptr_type(Default::default()).into(),
],
false,
)
}
@@ -173,9 +179,17 @@ where
fn emit_load<'ctx, D: Dependency + Clone>(
context: &mut Context<'ctx, D>,
mut key: BasicValueEnum<'ctx>,
key: BasicValueEnum<'ctx>,
transient: bool,
) -> anyhow::Result<BasicValueEnum<'ctx>> {
let mut key = context.build_load(
super::Pointer::new(
context.word_type(),
Default::default(),
key.into_pointer_value(),
),
"key",
)?;
if !transient {
key = context.build_byte_swap(key)?;
}
@@ -217,10 +231,26 @@ fn emit_load<'ctx, D: Dependency + Clone>(
fn emit_store<'ctx, D: Dependency + Clone>(
context: &mut Context<'ctx, D>,
mut key: BasicValueEnum<'ctx>,
mut value: BasicValueEnum<'ctx>,
key: BasicValueEnum<'ctx>,
value: BasicValueEnum<'ctx>,
transient: bool,
) -> anyhow::Result<()> {
let mut key = context.build_load(
super::Pointer::new(
context.word_type(),
Default::default(),
key.into_pointer_value(),
),
"key",
)?;
let mut value = context.build_load(
super::Pointer::new(
context.word_type(),
Default::default(),
value.into_pointer_value(),
),
"key",
)?;
if !transient {
key = context.build_byte_swap(key)?;
value = context.build_byte_swap(value)?;