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Lookahead cleanup. Start work on throws. Fix try expressions. Beginning work on initializer. Some fixes on LLVM types. Moving more target info into C3. Moving alignment into types Introducing a meta type (incomplete). Start work on macros. Splitting '@' from macro name.

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This commit is contained in:
Christoffer Lerno
2020-02-14 11:15:35 +01:00
parent ae683d2811
commit ebbea2ac42
51 changed files with 7227 additions and 497 deletions
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39
src/compiler/llvm_codegen_function.c
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@@ -78,10 +78,22 @@ static inline void gencontext_emit_parameter(GenContext *context, Decl *decl, un
assert(decl->decl_kind == DECL_VAR && decl->var.kind == VARDECL_PARAM);
// Allocate room on stack and copy.
decl->var.backend_ref = gencontext_emit_alloca(context, BACKEND_TYPE(decl->type), decl->name);
decl->var.backend_ref = gencontext_emit_alloca(context, llvm_type(decl->type), decl->name);
LLVMBuildStore(context->builder, LLVMGetParam(context->function, index), decl->var.backend_ref);
}
void gencontext_emit_implicit_return(GenContext *context)
{
if (func_has_error_return(&context->cur_func_decl->func.function_signature))
{
LLVMBuildRet(context->builder, LLVMConstInt(llvm_type(type_ulong), 0, false));
}
else
{
LLVMBuildRetVoid(context->builder);
}
}
void gencontext_emit_function_body(GenContext *context, Decl *decl)
{
assert(decl->func.backend_value);
@@ -90,6 +102,7 @@ void gencontext_emit_function_body(GenContext *context, Decl *decl)
LLVMBuilderRef prev_builder = context->builder;
context->function = decl->func.backend_value;
context->cur_func_decl = decl;
LLVMBasicBlockRef entry = LLVMAppendBasicBlockInContext(context->context, context->function, "entry");
context->current_block = entry;
@@ -100,10 +113,22 @@ void gencontext_emit_function_body(GenContext *context, Decl *decl)
LLVMValueRef alloca_point = LLVMBuildAlloca(context->builder, LLVMInt32TypeInContext(context->context), "alloca_point");
context->alloca_point = alloca_point;
unsigned return_parameter = func_return_value_as_out(&decl->func.function_signature) ? 1 : 0;
if (return_parameter)
{
context->return_out = gencontext_emit_alloca(context, llvm_type(decl->func.function_signature.rtype->type), "retval");
LLVMBuildStore(context->builder, LLVMGetParam(context->function, 0), context->return_out);
}
else
{
context->return_out = NULL;
}
// Generate LLVMValueRef's for all parameters, so we can use them as local vars in code
VECEACH(decl->func.function_signature.params, i)
{
gencontext_emit_parameter(context, decl->func.function_signature.params[i], i);
gencontext_emit_parameter(context, decl->func.function_signature.params[i], i + return_parameter);
}
VECEACH(decl->func.labels, i)
@@ -130,7 +155,7 @@ void gencontext_emit_function_body(GenContext *context, Decl *decl)
assert(decl->func.function_signature.rtype->type->type_kind == TYPE_VOID);
assert(decl->func.body->compound_stmt.defer_list.end == NULL);
gencontext_emit_defer(context, decl->func.body->compound_stmt.defer_list.start, NULL);
LLVMBuildRetVoid(context->builder);
gencontext_emit_implicit_return(context);
}
// erase alloca point
@@ -151,7 +176,7 @@ void gencontext_emit_function_decl(GenContext *context, Decl *decl)
assert(decl->decl_kind == DECL_FUNC);
// Resolve function backend type for function.
decl->func.backend_value = LLVMAddFunction(context->module, decl->external_name,
BACKEND_TYPE(decl->type));
llvm_type(decl->type));
// Specify appropriate storage class, visibility and call convention
// extern functions (linkedited in separately):
@@ -208,11 +233,11 @@ void gencontext_emit_extern_decl(GenContext *context, Decl *decl)
UNREACHABLE;
case DECL_FUNC:
decl->func.backend_value = LLVMAddFunction(context->module, decl->external_name,
BACKEND_TYPE(decl->type));
llvm_type(decl->type));
LLVMSetVisibility(decl->func.backend_value, LLVMDefaultVisibility);
break;
case DECL_VAR:
decl->var.backend_ref = LLVMAddGlobal(context->module, BACKEND_TYPE(decl->type), decl->external_name);
decl->var.backend_ref = LLVMAddGlobal(context->module, llvm_type(decl->type), decl->external_name);
LLVMSetVisibility(decl->var.backend_ref, LLVMDefaultVisibility);
break;
case DECL_TYPEDEF:
@@ -221,7 +246,7 @@ void gencontext_emit_extern_decl(GenContext *context, Decl *decl)
TODO
case DECL_STRUCT:
case DECL_UNION:
BACKEND_TYPE(decl->type);
llvm_type(decl->type);
break;
case DECL_ENUM:
TODO