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Improve some TBAA label names, particular for memory.

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Memory can't change between static and dynamic, so use that in the TBAA label
name.

Distinguish between local and imported memory, table and globals.
This commit is contained in:
Nick Lewycky
2019-10-31 12:40:32 -07:00
parent 0e665c4001
commit ef4b3c3428
2 changed files with 42 additions and 35 deletions
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8
lib/llvm-backend/src/code.rs
View File

@ -577,16 +577,16 @@ fn resolve_memory_ptr(
tbaa_label(
module.clone(),
intrinsics,
"context_field_ptr_to_base",
"dynamic_memory_base",
base.as_instruction_value().unwrap(),
None,
Some(0),
);
tbaa_label(
module.clone(),
intrinsics,
"context_field_ptr_to_bounds",
"dynamic_memory_bounds",
bounds.as_instruction_value().unwrap(),
None,
Some(0),
);
(base, bounds)
}

69
lib/llvm-backend/src/intrinsics.rs
View File

@ -670,30 +670,33 @@ impl<'a> CtxType<'a> {
);
*cached_memories.entry(index).or_insert_with(|| {
let (memory_array_ptr_ptr, index, memory_type) = match index.local_or_import(info) {
LocalOrImport::Local(local_mem_index) => (
unsafe {
cache_builder.build_struct_gep(
ctx_ptr_value,
offset_to_index(Ctx::offset_memories()),
"memory_array_ptr_ptr",
)
},
local_mem_index.index() as u64,
info.memories[local_mem_index].memory_type(),
),
LocalOrImport::Import(import_mem_index) => (
unsafe {
cache_builder.build_struct_gep(
ctx_ptr_value,
offset_to_index(Ctx::offset_imported_memories()),
"memory_array_ptr_ptr",
)
},
import_mem_index.index() as u64,
info.imported_memories[import_mem_index].1.memory_type(),
),
};
let (memory_array_ptr_ptr, index, memory_type, field_name) =
match index.local_or_import(info) {
LocalOrImport::Local(local_mem_index) => (
unsafe {
cache_builder.build_struct_gep(
ctx_ptr_value,
offset_to_index(Ctx::offset_memories()),
"memory_array_ptr_ptr",
)
},
local_mem_index.index() as u64,
info.memories[local_mem_index].memory_type(),
"context_field_ptr_to_local_memory",
),
LocalOrImport::Import(import_mem_index) => (
unsafe {
cache_builder.build_struct_gep(
ctx_ptr_value,
offset_to_index(Ctx::offset_imported_memories()),
"memory_array_ptr_ptr",
)
},
import_mem_index.index() as u64,
info.imported_memories[import_mem_index].1.memory_type(),
"context_field_ptr_to_imported_memory",
),
};
let memory_array_ptr = cache_builder
.build_load(memory_array_ptr_ptr, "memory_array_ptr")
@ -701,7 +704,7 @@ impl<'a> CtxType<'a> {
tbaa_label(
module.clone(),
intrinsics,
"memory_array",
field_name,
memory_array_ptr.as_instruction_value().unwrap(),
None,
);
@ -746,14 +749,14 @@ impl<'a> CtxType<'a> {
tbaa_label(
module.clone(),
intrinsics,
"memory_base",
"static_memory_base",
base_ptr.as_instruction_value().unwrap(),
Some(index as u32),
);
tbaa_label(
module.clone(),
intrinsics,
"memory_bounds",
"static_memory_bounds",
bounds.as_instruction_value().unwrap(),
Some(index as u32),
);
@ -780,7 +783,7 @@ impl<'a> CtxType<'a> {
ptr_to_base_ptr,
ptr_to_bounds,
} = *cached_tables.entry(index).or_insert_with(|| {
let (table_array_ptr_ptr, index) = match index.local_or_import(info) {
let (table_array_ptr_ptr, index, field_name) = match index.local_or_import(info) {
LocalOrImport::Local(local_table_index) => (
unsafe {
cache_builder.build_struct_gep(
@ -790,6 +793,7 @@ impl<'a> CtxType<'a> {
)
},
local_table_index.index() as u64,
"context_field_ptr_to_local_table",
),
LocalOrImport::Import(import_table_index) => (
unsafe {
@ -800,6 +804,7 @@ impl<'a> CtxType<'a> {
)
},
import_table_index.index() as u64,
"context_field_ptr_to_import_table",
),
};
@ -809,7 +814,7 @@ impl<'a> CtxType<'a> {
tbaa_label(
module.clone(),
intrinsics,
"context_field_ptr_to_tables",
field_name,
table_array_ptr.as_instruction_value().unwrap(),
None,
);
@ -971,7 +976,7 @@ impl<'a> CtxType<'a> {
);
*cached_globals.entry(index).or_insert_with(|| {
let (globals_array_ptr_ptr, index, mutable, wasmer_ty) =
let (globals_array_ptr_ptr, index, mutable, wasmer_ty, field_name) =
match index.local_or_import(info) {
LocalOrImport::Local(local_global_index) => {
let desc = info.globals[local_global_index].desc;
@ -986,6 +991,7 @@ impl<'a> CtxType<'a> {
local_global_index.index() as u64,
desc.mutable,
desc.ty,
"context_field_ptr_to_local_globals",
)
}
LocalOrImport::Import(import_global_index) => {
@ -1001,6 +1007,7 @@ impl<'a> CtxType<'a> {
import_global_index.index() as u64,
desc.mutable,
desc.ty,
"context_field_ptr_to_imported_globals",
)
}
};
@ -1013,7 +1020,7 @@ impl<'a> CtxType<'a> {
tbaa_label(
module.clone(),
intrinsics,
"context_field_ptr_to_globals",
field_name,
globals_array_ptr_ptr.as_instruction_value().unwrap(),
None,
);