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codegen for coro_alloc_fail instruction

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See #727
This commit is contained in:
Andrew Kelley 2018-02-25 16:15:14 -05:00
parent bced3fb64c
commit 79f1ff574b
1 changed files with 18 additions and 2 deletions
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20
src/codegen.cpp
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@ -3811,8 +3811,24 @@ static LLVMValueRef ir_render_coro_begin(CodeGen *g, IrExecutable *executable, I
zig_panic("TODO ir_render_coro_begin");
}
static LLVMValueRef ir_render_coro_alloc_fail(CodeGen *g, IrExecutable *executable, IrInstructionCoroAllocFail *instruction) {
zig_panic("TODO ir_render_coro_alloc_fail");
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;
bool prefix_arg_err_ret_stack = get_prefix_arg_err_ret_stack(g, src_return_type);
size_t err_code_ptr_arg_index = prefix_arg_err_ret_stack ? 2 : 1;
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);
LLVMValueRef return_value;
if (ir_want_runtime_safety(g, &instruction->base)) {
return_value = LLVMConstNull(LLVMPointerType(LLVMInt8Type(), 0));
} else {
return_value = LLVMGetUndef(LLVMPointerType(LLVMInt8Type(), 0));
}
LLVMBuildRet(g->builder, return_value);
return nullptr;
}
static LLVMValueRef ir_render_coro_suspend(CodeGen *g, IrExecutable *executable, IrInstructionCoroSuspend *instruction) {