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pass the pointer to shared memory around, instead of using a global

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Folkert 2022-12-08 23:22:06 +01:00
parent 8307a194e1
commit 95fe9cbccd
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GPG key ID: 1F17F6FFD112B97C
6 changed files with 68 additions and 55 deletions
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67
crates/compiler/gen_llvm/src/llvm/expect.rs
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@ -18,6 +18,32 @@ use super::build::{
Scope,
};
pub(crate) struct SharedMemoryPointer<'ctx>(PointerValue<'ctx>);
impl<'ctx> SharedMemoryPointer<'ctx> {
pub(crate) fn get<'a, 'env>(env: &Env<'a, 'ctx, 'env>) -> Self {
let start_function = if let LlvmBackendMode::BinaryDev = env.mode {
bitcode::UTILS_EXPECT_FAILED_START_SHARED_FILE
} else {
bitcode::UTILS_EXPECT_FAILED_START_SHARED_BUFFER
};
let func = env.module.get_function(start_function).unwrap();
let call_result = env
.builder
.build_call(func, &[], "call_expect_start_failed");
let ptr = call_result
.try_as_basic_value()
.left()
.unwrap()
.into_pointer_value();
Self(ptr)
}
}
#[derive(Debug, Clone, Copy)]
struct Cursors<'ctx> {
offset: IntValue<'ctx>,
@ -94,48 +120,39 @@ fn write_state<'a, 'ctx, 'env>(
env.builder.build_store(offset_ptr, offset);
}
pub(crate) fn finalize(env: &Env) {
pub(crate) fn notify_parent_expect(env: &Env, shared_memory: &SharedMemoryPointer) {
let func = env
.module
.get_function(bitcode::UTILS_EXPECT_FAILED_FINALIZE)
.get_function(bitcode::NOTIFY_PARENT_EXPECT)
.unwrap();
env.builder
.build_call(func, &[], "call_expect_failed_finalize");
env.builder.build_call(
func,
&[shared_memory.0.into()],
"call_expect_failed_finalize",
);
}
pub(crate) fn send_dbg(env: &Env) {
let func = env.module.get_function(bitcode::UTILS_SEND_DBG).unwrap();
pub(crate) fn notify_parent_dbg(env: &Env, shared_memory: &SharedMemoryPointer) {
let func = env.module.get_function(bitcode::NOTIFY_PARENT_DBG).unwrap();
env.builder
.build_call(func, &[], "call_expect_failed_finalize");
env.builder.build_call(
func,
&[shared_memory.0.into()],
"call_expect_failed_finalize",
);
}
pub(crate) fn clone_to_shared_memory<'a, 'ctx, 'env>(
env: &Env<'a, 'ctx, 'env>,
scope: &Scope<'a, 'ctx>,
layout_ids: &mut LayoutIds<'a>,
shared_memory: &SharedMemoryPointer<'ctx>,
condition: Symbol,
region: Region,
lookups: &[Symbol],
) {
let start_function = if let LlvmBackendMode::BinaryDev = env.mode {
bitcode::UTILS_EXPECT_FAILED_START_SHARED_FILE
} else {
bitcode::UTILS_EXPECT_FAILED_START_SHARED_BUFFER
};
let func = env.module.get_function(start_function).unwrap();
let call_result = env
.builder
.build_call(func, &[], "call_expect_start_failed");
let original_ptr = call_result
.try_as_basic_value()
.left()
.unwrap()
.into_pointer_value();
let original_ptr = shared_memory.0;
let (count, mut offset) = read_state(env, original_ptr);