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another workaround for llvm coroutines 

this one doesn't work either
master
Andrew Kelley 2018-02-28 04:01:22 -05:00
parent d243453862
commit 026aebf2ea
6 changed files with 222 additions and 51 deletions
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9
src/all_types.hpp
View File

@ -1634,6 +1634,7 @@ struct CodeGen {
LLVMValueRef coro_free_fn_val;
LLVMValueRef coro_resume_fn_val;
LLVMValueRef coro_save_fn_val;
LLVMValueRef coro_alloc_helper_fn_val;
bool error_during_imports;
const char **clang_argv;
@ -2004,6 +2005,7 @@ enum IrInstructionId {
IrInstructionIdCoroFree,
IrInstructionIdCoroResume,
IrInstructionIdCoroSave,
IrInstructionIdCoroAllocHelper,
};
struct IrInstruction {
@ -2913,6 +2915,13 @@ struct IrInstructionCoroSave {
IrInstruction *coro_handle;
};
struct IrInstructionCoroAllocHelper {
IrInstruction base;
IrInstruction *alloc_fn;
IrInstruction *coro_size;
};
static const size_t slice_ptr_index = 0;
static const size_t slice_len_index = 1;

10
src/analyze.cpp
View File

@ -1001,9 +1001,7 @@ TypeTableEntry *get_fn_type(CodeGen *g, FnTypeId *fn_type_id) {
bool first_arg_return = calling_convention_does_first_arg_return(fn_type_id->cc) &&
handle_is_ptr(fn_type_id->return_type);
bool is_async = fn_type_id->cc == CallingConventionAsync;
bool prefix_arg_error_return_trace = g->have_err_ret_tracing &&
(fn_type_id->return_type->id == TypeTableEntryIdErrorUnion ||
fn_type_id->return_type->id == TypeTableEntryIdErrorSet);
bool prefix_arg_error_return_trace = g->have_err_ret_tracing && fn_type_can_fail(fn_type_id);
// +1 for maybe making the first argument the return value
// +1 for maybe first argument the error return trace
// +2 for maybe arguments async allocator and error code pointer
@ -5795,3 +5793,9 @@ bool type_is_global_error_set(TypeTableEntry *err_set_type) {
uint32_t get_coro_frame_align_bytes(CodeGen *g) {
return g->pointer_size_bytes * 2;
}
bool fn_type_can_fail(FnTypeId *fn_type_id) {
TypeTableEntry *return_type = fn_type_id->return_type;
return return_type->id == TypeTableEntryIdErrorUnion || return_type->id == TypeTableEntryIdErrorSet ||
fn_type_id->cc == CallingConventionAsync;
}

1
src/analyze.hpp
View File

@ -192,5 +192,6 @@ void analyze_fn_body(CodeGen *g, FnTableEntry *fn_table_entry);
TypeTableEntry *get_auto_err_set_type(CodeGen *g, FnTableEntry *fn_entry);
uint32_t get_coro_frame_align_bytes(CodeGen *g);
bool fn_type_can_fail(FnTypeId *fn_type_id);
#endif

155
src/codegen.cpp
View File

@ -412,10 +412,10 @@ static uint32_t get_err_ret_trace_arg_index(CodeGen *g, FnTableEntry *fn_table_e
return UINT32_MAX;
}
TypeTableEntry *fn_type = fn_table_entry->type_entry;
TypeTableEntry *return_type = fn_type->data.fn.fn_type_id.return_type;
if (return_type->id != TypeTableEntryIdErrorUnion && return_type->id != TypeTableEntryIdErrorSet) {
if (!fn_type_can_fail(&fn_type->data.fn.fn_type_id)) {
return UINT32_MAX;
}
TypeTableEntry *return_type = fn_type->data.fn.fn_type_id.return_type;
bool first_arg_ret = type_has_bits(return_type) && handle_is_ptr(return_type);
return first_arg_ret ? 1 : 0;
}
@ -2662,21 +2662,23 @@ static LLVMValueRef ir_render_elem_ptr(CodeGen *g, IrExecutable *executable, IrI
}
}
static bool get_prefix_arg_err_ret_stack(CodeGen *g, TypeTableEntry *src_return_type) {
static bool get_prefix_arg_err_ret_stack(CodeGen *g, FnTypeId *fn_type_id) {
return g->have_err_ret_tracing &&
(src_return_type->id == TypeTableEntryIdErrorUnion || src_return_type->id == TypeTableEntryIdErrorSet);
(fn_type_id->return_type->id == TypeTableEntryIdErrorUnion ||
fn_type_id->return_type->id == TypeTableEntryIdErrorSet ||
fn_type_id->cc == CallingConventionAsync);
}
static size_t get_async_allocator_arg_index(CodeGen *g, TypeTableEntry *src_return_type) {
static size_t get_async_allocator_arg_index(CodeGen *g, FnTypeId *fn_type_id) {
// 0 1 2 3
// err_ret_stack allocator_ptr err_code other_args...
return get_prefix_arg_err_ret_stack(g, src_return_type) ? 1 : 0;
return get_prefix_arg_err_ret_stack(g, fn_type_id) ? 1 : 0;
}
static size_t get_async_err_code_arg_index(CodeGen *g, TypeTableEntry *src_return_type) {
static size_t get_async_err_code_arg_index(CodeGen *g, FnTypeId *fn_type_id) {
// 0 1 2 3
// err_ret_stack allocator_ptr err_code other_args...
return 1 + get_async_allocator_arg_index(g, src_return_type);
return 1 + get_async_allocator_arg_index(g, fn_type_id);
}
static LLVMValueRef ir_render_call(CodeGen *g, IrExecutable *executable, IrInstructionCall *instruction) {
@ -2698,7 +2700,7 @@ static LLVMValueRef ir_render_call(CodeGen *g, IrExecutable *executable, IrInstr
bool first_arg_ret = ret_has_bits && handle_is_ptr(src_return_type) &&
calling_convention_does_first_arg_return(fn_type->data.fn.fn_type_id.cc);
bool prefix_arg_err_ret_stack = get_prefix_arg_err_ret_stack(g, src_return_type);
bool prefix_arg_err_ret_stack = get_prefix_arg_err_ret_stack(g, fn_type_id);
// +2 for the async args
size_t actual_param_count = instruction->arg_count + (first_arg_ret ? 1 : 0) + (prefix_arg_err_ret_stack ? 1 : 0) + 2;
bool is_var_args = fn_type_id->is_var_args;
@ -2717,7 +2719,6 @@ static LLVMValueRef ir_render_call(CodeGen *g, IrExecutable *executable, IrInstr
gen_param_index += 1;
LLVMValueRef err_val_ptr = LLVMBuildStructGEP(g->builder, instruction->tmp_ptr, err_union_err_index, "");
LLVMBuildStore(g->builder, LLVMConstNull(g->builtin_types.entry_global_error_set->type_ref), err_val_ptr);
gen_param_values[gen_param_index] = err_val_ptr;
gen_param_index += 1;
}
@ -3293,8 +3294,7 @@ static LLVMValueRef ir_render_cancel(CodeGen *g, IrExecutable *executable, IrIns
static LLVMValueRef ir_render_get_implicit_allocator(CodeGen *g, IrExecutable *executable,
IrInstructionGetImplicitAllocator *instruction)
{
TypeTableEntry *src_return_type = g->cur_fn->type_entry->data.fn.fn_type_id.return_type;
size_t allocator_arg_index = get_async_allocator_arg_index(g, src_return_type);
size_t allocator_arg_index = get_async_allocator_arg_index(g, &g->cur_fn->type_entry->data.fn.fn_type_id);
return LLVMGetParam(g->cur_fn_val, allocator_arg_index);
}
@ -3926,8 +3926,7 @@ static LLVMValueRef ir_render_coro_begin(CodeGen *g, IrExecutable *executable, I
static LLVMValueRef ir_render_coro_alloc_fail(CodeGen *g, IrExecutable *executable,
IrInstructionCoroAllocFail *instruction)
{
TypeTableEntry *src_return_type = g->cur_fn->type_entry->data.fn.fn_type_id.return_type;
size_t err_code_ptr_arg_index = get_async_err_code_arg_index(g, src_return_type);
size_t err_code_ptr_arg_index = get_async_err_code_arg_index(g, &g->cur_fn->type_entry->data.fn.fn_type_id);
LLVMValueRef err_code_ptr_val = LLVMGetParam(g->cur_fn_val, err_code_ptr_arg_index);
LLVMValueRef err_code = ir_llvm_value(g, instruction->err_val);
LLVMBuildStore(g->builder, err_code, err_code_ptr_val);
@ -3985,6 +3984,132 @@ static LLVMValueRef ir_render_coro_save(CodeGen *g, IrExecutable *executable, Ir
return LLVMBuildCall(g->builder, get_coro_save_fn_val(g), &coro_handle, 1, "");
}
static LLVMValueRef get_coro_alloc_helper_fn_val(CodeGen *g, LLVMTypeRef alloc_fn_type_ref, TypeTableEntry *fn_type) {
if (g->coro_alloc_helper_fn_val != nullptr)
return g->coro_alloc_fn_val;
assert(fn_type->id == TypeTableEntryIdFn);
TypeTableEntry *ptr_to_err_code_type = get_pointer_to_type(g, g->builtin_types.entry_global_error_set, false);
LLVMTypeRef alloc_raw_fn_type_ref = LLVMGetElementType(alloc_fn_type_ref);
LLVMTypeRef *alloc_fn_arg_types = allocate<LLVMTypeRef>(LLVMCountParamTypes(alloc_raw_fn_type_ref));
LLVMGetParamTypes(alloc_raw_fn_type_ref, alloc_fn_arg_types);
ZigList<LLVMTypeRef> arg_types = {};
arg_types.append(alloc_fn_type_ref);
if (g->have_err_ret_tracing) {
arg_types.append(alloc_fn_arg_types[1]);
}
arg_types.append(alloc_fn_arg_types[g->have_err_ret_tracing ? 2 : 1]);
arg_types.append(ptr_to_err_code_type->type_ref);
arg_types.append(g->builtin_types.entry_usize->type_ref);
LLVMTypeRef fn_type_ref = LLVMFunctionType(LLVMPointerType(LLVMInt8Type(), 0),
arg_types.items, arg_types.length, false);
Buf *fn_name = get_mangled_name(g, buf_create_from_str("__zig_coro_alloc_helper"), false);
LLVMValueRef fn_val = LLVMAddFunction(g->module, buf_ptr(fn_name), fn_type_ref);
LLVMSetLinkage(fn_val, LLVMInternalLinkage);
LLVMSetFunctionCallConv(fn_val, get_llvm_cc(g, CallingConventionUnspecified));
addLLVMFnAttr(fn_val, "nounwind");
addLLVMArgAttr(fn_val, (unsigned)0, "nonnull");
addLLVMArgAttr(fn_val, (unsigned)1, "nonnull");
LLVMBasicBlockRef prev_block = LLVMGetInsertBlock(g->builder);
LLVMValueRef prev_debug_location = LLVMGetCurrentDebugLocation(g->builder);
FnTableEntry *prev_cur_fn = g->cur_fn;
LLVMValueRef prev_cur_fn_val = g->cur_fn_val;
LLVMBasicBlockRef entry_block = LLVMAppendBasicBlock(fn_val, "Entry");
LLVMPositionBuilderAtEnd(g->builder, entry_block);
ZigLLVMClearCurrentDebugLocation(g->builder);
g->cur_fn = nullptr;
g->cur_fn_val = fn_val;
LLVMValueRef sret_ptr = LLVMBuildAlloca(g->builder, LLVMGetElementType(alloc_fn_arg_types[0]), "");
size_t next_arg = 0;
LLVMValueRef alloc_fn_val = LLVMGetParam(fn_val, next_arg);
next_arg += 1;
LLVMValueRef stack_trace_val;
if (g->have_err_ret_tracing) {
stack_trace_val = LLVMGetParam(fn_val, next_arg);
next_arg += 1;
}
LLVMValueRef allocator_val = LLVMGetParam(fn_val, next_arg);
next_arg += 1;
LLVMValueRef err_code_ptr = LLVMGetParam(fn_val, next_arg);
next_arg += 1;
LLVMValueRef coro_size = LLVMGetParam(fn_val, next_arg);
next_arg += 1;
LLVMValueRef alignment_val = LLVMConstInt(g->builtin_types.entry_u29->type_ref,
2 * g->pointer_size_bytes, false);
ZigList<LLVMValueRef> args = {};
args.append(sret_ptr);
if (g->have_err_ret_tracing) {
args.append(stack_trace_val);
}
args.append(allocator_val);
args.append(coro_size);
args.append(alignment_val);
ZigLLVMBuildCall(g->builder, alloc_fn_val, args.items, args.length,
get_llvm_cc(g, CallingConventionUnspecified), ZigLLVM_FnInlineAuto, "");
LLVMValueRef err_val_ptr = LLVMBuildStructGEP(g->builder, sret_ptr, err_union_err_index, "");
LLVMValueRef err_val = LLVMBuildLoad(g->builder, err_val_ptr, "");
LLVMBuildStore(g->builder, err_val, err_code_ptr);
LLVMValueRef ok_bit = LLVMBuildICmp(g->builder, LLVMIntEQ, err_val, LLVMConstNull(LLVMTypeOf(err_val)), "");
LLVMBasicBlockRef ok_block = LLVMAppendBasicBlock(fn_val, "AllocOk");
LLVMBasicBlockRef fail_block = LLVMAppendBasicBlock(fn_val, "AllocFail");
LLVMBuildCondBr(g->builder, ok_bit, ok_block, fail_block);
LLVMPositionBuilderAtEnd(g->builder, ok_block);
LLVMValueRef payload_ptr = LLVMBuildStructGEP(g->builder, sret_ptr, err_union_payload_index, "");
TypeTableEntry *u8_ptr_type = get_pointer_to_type(g, g->builtin_types.entry_u8, false);
TypeTableEntry *slice_type = get_slice_type(g, u8_ptr_type);
size_t ptr_field_index = slice_type->data.structure.fields[slice_ptr_index].gen_index;
LLVMValueRef ptr_field_ptr = LLVMBuildStructGEP(g->builder, payload_ptr, ptr_field_index, "");
LLVMValueRef ptr_val = LLVMBuildLoad(g->builder, ptr_field_ptr, "");
LLVMBuildRet(g->builder, ptr_val);
LLVMPositionBuilderAtEnd(g->builder, fail_block);
LLVMBuildRet(g->builder, LLVMConstNull(LLVMPointerType(LLVMInt8Type(), 0)));
g->cur_fn = prev_cur_fn;
g->cur_fn_val = prev_cur_fn_val;
LLVMPositionBuilderAtEnd(g->builder, prev_block);
LLVMSetCurrentDebugLocation(g->builder, prev_debug_location);
g->coro_alloc_helper_fn_val = fn_val;
return fn_val;
}
static LLVMValueRef ir_render_coro_alloc_helper(CodeGen *g, IrExecutable *executable,
IrInstructionCoroAllocHelper *instruction)
{
LLVMValueRef alloc_fn = ir_llvm_value(g, instruction->alloc_fn);
LLVMValueRef coro_size = ir_llvm_value(g, instruction->coro_size);
LLVMValueRef fn_val = get_coro_alloc_helper_fn_val(g, LLVMTypeOf(alloc_fn), instruction->alloc_fn->value.type);
size_t err_code_ptr_arg_index = get_async_err_code_arg_index(g, &g->cur_fn->type_entry->data.fn.fn_type_id);
size_t allocator_arg_index = get_async_allocator_arg_index(g, &g->cur_fn->type_entry->data.fn.fn_type_id);
ZigList<LLVMValueRef> params = {};
params.append(alloc_fn);
uint32_t err_ret_trace_arg_index = get_err_ret_trace_arg_index(g, g->cur_fn);
if (err_ret_trace_arg_index != UINT32_MAX) {
params.append(LLVMGetParam(g->cur_fn_val, err_ret_trace_arg_index));
}
params.append(LLVMGetParam(g->cur_fn_val, allocator_arg_index));
params.append(LLVMGetParam(g->cur_fn_val, err_code_ptr_arg_index));
params.append(coro_size);
return ZigLLVMBuildCall(g->builder, fn_val, params.items, params.length,
get_llvm_cc(g, CallingConventionUnspecified), ZigLLVM_FnInlineAuto, "");
}
static void set_debug_location(CodeGen *g, IrInstruction *instruction) {
AstNode *source_node = instruction->source_node;
Scope *scope = instruction->scope;
@ -4190,6 +4315,8 @@ static LLVMValueRef ir_render_instruction(CodeGen *g, IrExecutable *executable,
return ir_render_coro_resume(g, executable, (IrInstructionCoroResume *)instruction);
case IrInstructionIdCoroSave:
return ir_render_coro_save(g, executable, (IrInstructionCoroSave *)instruction);
case IrInstructionIdCoroAllocHelper:
return ir_render_coro_alloc_helper(g, executable, (IrInstructionCoroAllocHelper *)instruction);
}
zig_unreachable();
}

87
src/ir.cpp
View File

@ -695,6 +695,10 @@ static constexpr IrInstructionId ir_instruction_id(IrInstructionCoroSave *) {
return IrInstructionIdCoroSave;
}
static constexpr IrInstructionId ir_instruction_id(IrInstructionCoroAllocHelper *) {
return IrInstructionIdCoroAllocHelper;
}
template<typename T>
static T *ir_create_instruction(IrBuilder *irb, Scope *scope, AstNode *source_node) {
T *special_instruction = allocate<T>(1);
@ -829,14 +833,6 @@ static IrInstruction *ir_build_const_usize(IrBuilder *irb, Scope *scope, AstNode
return &const_instruction->base;
}
static IrInstruction *ir_build_const_u29(IrBuilder *irb, Scope *scope, AstNode *source_node, uint32_t value) {
IrInstructionConst *const_instruction = ir_build_instruction<IrInstructionConst>(irb, scope, source_node);
const_instruction->base.value.type = irb->codegen->builtin_types.entry_u29;
const_instruction->base.value.special = ConstValSpecialStatic;
bigint_init_unsigned(&const_instruction->base.value.data.x_bigint, value);
return &const_instruction->base;
}
static IrInstruction *ir_build_const_u8(IrBuilder *irb, Scope *scope, AstNode *source_node, uint8_t value) {
IrInstructionConst *const_instruction = ir_build_instruction<IrInstructionConst>(irb, scope, source_node);
const_instruction->base.value.type = irb->codegen->builtin_types.entry_u8;
@ -2600,6 +2596,19 @@ static IrInstruction *ir_build_coro_save(IrBuilder *irb, Scope *scope, AstNode *
return &instruction->base;
}
static IrInstruction *ir_build_coro_alloc_helper(IrBuilder *irb, Scope *scope, AstNode *source_node,
IrInstruction *alloc_fn, IrInstruction *coro_size)
{
IrInstructionCoroAllocHelper *instruction = ir_build_instruction<IrInstructionCoroAllocHelper>(irb, scope, source_node);
instruction->alloc_fn = alloc_fn;
instruction->coro_size = coro_size;
ir_ref_instruction(alloc_fn, irb->current_basic_block);
ir_ref_instruction(coro_size, irb->current_basic_block);
return &instruction->base;
}
static void ir_count_defers(IrBuilder *irb, Scope *inner_scope, Scope *outer_scope, size_t *results) {
results[ReturnKindUnconditional] = 0;
results[ReturnKindError] = 0;
@ -6074,10 +6083,11 @@ bool ir_gen(CodeGen *codegen, AstNode *node, Scope *scope, IrExecutable *ir_exec
bool is_async = fn_entry != nullptr && fn_entry->type_entry->data.fn.fn_type_id.cc == CallingConventionAsync;
IrInstruction *u8_ptr_type;
IrInstruction *const_bool_false;
IrInstruction *coro_unwrapped_mem_ptr;
IrInstruction *coro_size;
IrInstruction *coro_id;
IrInstruction *coro_promise_ptr;
IrInstruction *coro_result_field_ptr;
IrInstruction *coro_mem_ptr;
TypeTableEntry *return_type;
Buf *result_ptr_field_name;
if (is_async) {
@ -6095,39 +6105,25 @@ bool ir_gen(CodeGen *codegen, AstNode *node, Scope *scope, IrExecutable *ir_exec
get_pointer_to_type(irb->codegen, irb->codegen->builtin_types.entry_u8, false));
IrInstruction *promise_as_u8_ptr = ir_build_ptr_cast(irb, scope, node, u8_ptr_type, coro_promise_ptr);
coro_id = ir_build_coro_id(irb, scope, node, promise_as_u8_ptr);
IrInstruction *coro_size = ir_build_coro_size(irb, scope, node);
coro_size = ir_build_coro_size(irb, scope, node);
irb->exec->implicit_allocator_ptr = ir_build_get_implicit_allocator(irb, scope, node);
Buf *alloc_field_name = buf_create_from_str(ASYNC_ALLOC_FIELD_NAME);
IrInstruction *alloc_fn_ptr = ir_build_field_ptr(irb, scope, node, irb->exec->implicit_allocator_ptr,
alloc_field_name);
IrInstruction *alloc_fn = ir_build_load_ptr(irb, scope, node, alloc_fn_ptr);
IrInstruction *alignment = ir_build_const_u29(irb, scope, node,
get_coro_frame_align_bytes(irb->codegen));
size_t arg_count = 3;
IrInstruction **args = allocate<IrInstruction *>(arg_count);
args[0] = irb->exec->implicit_allocator_ptr; // self
args[1] = coro_size; // byte_count
args[2] = alignment; // alignment
IrInstruction *alloc_result = ir_build_call(irb, scope, node, nullptr, alloc_fn, arg_count, args, false,
FnInlineAuto, false, nullptr);
IrInstruction *alloc_result_ptr = ir_build_ref(irb, scope, node, alloc_result, true, false);
IrInstruction *alloc_result_is_err = ir_build_test_err(irb, scope, node, alloc_result);
IrInstruction *maybe_coro_mem_ptr = ir_build_coro_alloc_helper(irb, scope, node, alloc_fn, coro_size);
IrInstruction *alloc_result_is_ok = ir_build_test_nonnull(irb, scope, node, maybe_coro_mem_ptr);
IrBasicBlock *alloc_err_block = ir_create_basic_block(irb, scope, "AllocError");
IrBasicBlock *alloc_ok_block = ir_create_basic_block(irb, scope, "AllocOk");
ir_build_cond_br(irb, scope, node, alloc_result_is_err, alloc_err_block, alloc_ok_block, const_bool_false);
ir_build_cond_br(irb, scope, node, alloc_result_is_ok, alloc_ok_block, alloc_err_block, const_bool_false);
ir_set_cursor_at_end_and_append_block(irb, alloc_err_block);
IrInstruction *err_val = ir_build_unwrap_err_code(irb, scope, node, alloc_result_ptr);
ir_build_coro_alloc_fail(irb, scope, node, err_val);
IrInstruction *undef = ir_build_const_undefined(irb, scope, node);
ir_build_return(irb, scope, node, undef);
ir_set_cursor_at_end_and_append_block(irb, alloc_ok_block);
coro_unwrapped_mem_ptr = ir_build_unwrap_err_payload(irb, scope, node, alloc_result_ptr, false);
Buf *ptr_field_name = buf_create_from_str("ptr");
IrInstruction *coro_mem_ptr_field = ir_build_field_ptr(irb, scope, node, coro_unwrapped_mem_ptr,
ptr_field_name);
IrInstruction *coro_mem = ir_build_load_ptr(irb, scope, node, coro_mem_ptr_field);
irb->exec->coro_handle = ir_build_coro_begin(irb, scope, node, coro_id, coro_mem);
coro_mem_ptr = ir_build_ptr_cast(irb, scope, node, u8_ptr_type, maybe_coro_mem_ptr);
irb->exec->coro_handle = ir_build_coro_begin(irb, scope, node, coro_id, coro_mem_ptr);
Buf *awaiter_handle_field_name = buf_create_from_str(AWAITER_HANDLE_FIELD_NAME);
irb->exec->coro_awaiter_field_ptr = ir_build_field_ptr(irb, scope, node, coro_promise_ptr,
@ -6207,10 +6203,13 @@ bool ir_gen(CodeGen *codegen, AstNode *node, Scope *scope, IrExecutable *ir_exec
IrInstruction *free_fn_ptr = ir_build_field_ptr(irb, scope, node, irb->exec->implicit_allocator_ptr,
free_field_name);
IrInstruction *free_fn = ir_build_load_ptr(irb, scope, node, free_fn_ptr);
IrInstruction *zero = ir_build_const_usize(irb, scope, node, 0);
IrInstruction *coro_mem_ptr_ref = ir_build_ref(irb, scope, node, coro_mem_ptr, true, false);
IrInstruction *mem_slice = ir_build_slice(irb, scope, node, coro_mem_ptr_ref, zero, coro_size, false);
size_t arg_count = 2;
IrInstruction **args = allocate<IrInstruction *>(arg_count);
args[0] = irb->exec->implicit_allocator_ptr; // self
args[1] = ir_build_load_ptr(irb, scope, node, coro_unwrapped_mem_ptr); // old_mem
args[1] = mem_slice; // old_mem
ir_build_call(irb, scope, node, nullptr, free_fn, arg_count, args, false, FnInlineAuto, false, nullptr);
IrBasicBlock *resume_block = ir_create_basic_block(irb, scope, "Resume");
@ -11844,7 +11843,7 @@ static TypeTableEntry *ir_analyze_fn_call(IrAnalyze *ira, IrInstructionCall *cal
}
TypeTableEntry *return_type = impl_fn->type_entry->data.fn.fn_type_id.return_type;
if (return_type->id == TypeTableEntryIdErrorSet || return_type->id == TypeTableEntryIdErrorUnion) {
if (fn_type_can_fail(&impl_fn->type_entry->data.fn.fn_type_id)) {
parent_fn_entry->calls_errorable_function = true;
}
@ -11870,7 +11869,7 @@ static TypeTableEntry *ir_analyze_fn_call(IrAnalyze *ira, IrInstructionCall *cal
FnTableEntry *parent_fn_entry = exec_fn_entry(ira->new_irb.exec);
assert(fn_type_id->return_type != nullptr);
assert(parent_fn_entry != nullptr);
if (fn_type_id->return_type->id == TypeTableEntryIdErrorSet || fn_type_id->return_type->id == TypeTableEntryIdErrorUnion) {
if (fn_type_can_fail(fn_type_id)) {
parent_fn_entry->calls_errorable_function = true;
}
@ -17274,6 +17273,23 @@ static TypeTableEntry *ir_analyze_instruction_coro_save(IrAnalyze *ira, IrInstru
return result->value.type;
}
static TypeTableEntry *ir_analyze_instruction_coro_alloc_helper(IrAnalyze *ira, IrInstructionCoroAllocHelper *instruction) {
IrInstruction *alloc_fn = instruction->alloc_fn->other;
if (type_is_invalid(alloc_fn->value.type))
return ira->codegen->builtin_types.entry_invalid;
IrInstruction *coro_size = instruction->coro_size->other;
if (type_is_invalid(coro_size->value.type))
return ira->codegen->builtin_types.entry_invalid;
IrInstruction *result = ir_build_coro_alloc_helper(&ira->new_irb, instruction->base.scope,
instruction->base.source_node, alloc_fn, coro_size);
ir_link_new_instruction(result, &instruction->base);
TypeTableEntry *u8_ptr_type = get_pointer_to_type(ira->codegen, ira->codegen->builtin_types.entry_u8, false);
result->value.type = get_maybe_type(ira->codegen, u8_ptr_type);
return result->value.type;
}
static TypeTableEntry *ir_analyze_instruction_nocast(IrAnalyze *ira, IrInstruction *instruction) {
switch (instruction->id) {
@ -17501,6 +17517,8 @@ static TypeTableEntry *ir_analyze_instruction_nocast(IrAnalyze *ira, IrInstructi
return ir_analyze_instruction_coro_resume(ira, (IrInstructionCoroResume *)instruction);
case IrInstructionIdCoroSave:
return ir_analyze_instruction_coro_save(ira, (IrInstructionCoroSave *)instruction);
case IrInstructionIdCoroAllocHelper:
return ir_analyze_instruction_coro_alloc_helper(ira, (IrInstructionCoroAllocHelper *)instruction);
}
zig_unreachable();
}
@ -17624,6 +17642,7 @@ bool ir_has_side_effects(IrInstruction *instruction) {
case IrInstructionIdCoroEnd:
case IrInstructionIdCoroResume:
case IrInstructionIdCoroSave:
case IrInstructionIdCoroAllocHelper:
return true;
case IrInstructionIdPhi:

11
src/ir_print.cpp
View File

@ -1096,6 +1096,14 @@ static void ir_print_coro_save(IrPrint *irp, IrInstructionCoroSave *instruction)
fprintf(irp->f, ")");
}
static void ir_print_coro_alloc_helper(IrPrint *irp, IrInstructionCoroAllocHelper *instruction) {
fprintf(irp->f, "@coroAllocHelper(");
ir_print_other_instruction(irp, instruction->alloc_fn);
fprintf(irp->f, ",");
ir_print_other_instruction(irp, instruction->coro_size);
fprintf(irp->f, ")");
}
static void ir_print_instruction(IrPrint *irp, IrInstruction *instruction) {
ir_print_prefix(irp, instruction);
switch (instruction->id) {
@ -1452,6 +1460,9 @@ static void ir_print_instruction(IrPrint *irp, IrInstruction *instruction) {
case IrInstructionIdCoroSave:
ir_print_coro_save(irp, (IrInstructionCoroSave *)instruction);
break;
case IrInstructionIdCoroAllocHelper:
ir_print_coro_alloc_helper(irp, (IrInstructionCoroAllocHelper *)instruction);
break;
}
fprintf(irp->f, "\n");
}