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codegen for coro_suspend instruction

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See #727
This commit is contained in:
Andrew Kelley 2018-02-25 16:29:07 -05:00
parent d0f2eca106
commit 0cf327eb17
2 changed files with 29 additions and 1 deletions
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1
src/all_types.hpp
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@ -1614,6 +1614,7 @@ struct CodeGen {
LLVMValueRef coro_alloc_fn_val;
LLVMValueRef coro_size_fn_val;
LLVMValueRef coro_begin_fn_val;
LLVMValueRef coro_suspend_fn_val;
bool error_during_imports;
const char **clang_argv;

29
src/codegen.cpp
View File

@ -1003,6 +1003,22 @@ static LLVMValueRef get_coro_begin_fn_val(CodeGen *g) {
return g->coro_begin_fn_val;
}
static LLVMValueRef get_coro_suspend_fn_val(CodeGen *g) {
if (g->coro_suspend_fn_val)
return g->coro_suspend_fn_val;
LLVMTypeRef param_types[] = {
ZigLLVMTokenTypeInContext(LLVMGetGlobalContext()),
LLVMInt1Type(),
};
LLVMTypeRef fn_type = LLVMFunctionType(LLVMInt8Type(), param_types, 2, false);
Buf *name = buf_sprintf("llvm.coro.suspend");
g->coro_suspend_fn_val = LLVMAddFunction(g->module, buf_ptr(name), fn_type);
assert(LLVMGetIntrinsicID(g->coro_suspend_fn_val));
return g->coro_suspend_fn_val;
}
static LLVMValueRef get_return_address_fn_val(CodeGen *g) {
if (g->return_address_fn_val)
return g->return_address_fn_val;
@ -3854,7 +3870,18 @@ static LLVMValueRef ir_render_coro_alloc_fail(CodeGen *g, IrExecutable *executab
}
static LLVMValueRef ir_render_coro_suspend(CodeGen *g, IrExecutable *executable, IrInstructionCoroSuspend *instruction) {
zig_panic("TODO ir_render_coro_suspend");
LLVMValueRef save_point;
if (instruction->save_point == nullptr) {
save_point = LLVMConstNull(ZigLLVMTokenTypeInContext(LLVMGetGlobalContext()));
} else {
save_point = ir_llvm_value(g, instruction->save_point);
}
LLVMValueRef is_final = ir_llvm_value(g, instruction->is_final);
LLVMValueRef params[] = {
save_point,
is_final,
};
return LLVMBuildCall(g->builder, get_coro_suspend_fn_val(g), params, 2, "");
}
static LLVMValueRef ir_render_coro_end(CodeGen *g, IrExecutable *executable, IrInstructionCoroEnd *instruction) {