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IR: implement break and continue

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This commit is contained in:
Andrew Kelley
2016-12-05 18:43:16 -05:00
parent 0541532ed6
commit 24048b2af6
7 changed files with 228 additions and 193 deletions
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83
src/codegen.cpp
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@@ -277,40 +277,55 @@ static ZigLLVMDIScope *get_di_scope(CodeGen *g, Scope *scope) {
if (scope->di_scope)
return scope->di_scope;
if (scope->node->type == NodeTypeFnDef) {
assert(scope->parent);
ScopeFnDef *fn_scope = (ScopeFnDef *)scope;
FnTableEntry *fn_table_entry = fn_scope->fn_entry;
unsigned line_number = fn_table_entry->proto_node->line + 1;
unsigned scope_line = line_number;
bool is_definition = fn_table_entry->fn_def_node != nullptr;
unsigned flags = 0;
bool is_optimized = g->is_release_build;
ZigLLVMDISubprogram *subprogram = ZigLLVMCreateFunction(g->dbuilder,
get_di_scope(g, scope->parent), buf_ptr(&fn_table_entry->symbol_name), "",
scope->node->owner->di_file, line_number,
fn_table_entry->type_entry->di_type, fn_table_entry->internal_linkage,
is_definition, scope_line, flags, is_optimized, nullptr);
ImportTableEntry *import = get_scope_import(scope);
switch (scope->id) {
case ScopeIdCImport:
zig_unreachable();
case ScopeIdFnDef:
{
assert(scope->parent);
ScopeFnDef *fn_scope = (ScopeFnDef *)scope;
FnTableEntry *fn_table_entry = fn_scope->fn_entry;
unsigned line_number = fn_table_entry->proto_node->line + 1;
unsigned scope_line = line_number;
bool is_definition = fn_table_entry->fn_def_node != nullptr;
unsigned flags = 0;
bool is_optimized = g->is_release_build;
ZigLLVMDISubprogram *subprogram = ZigLLVMCreateFunction(g->dbuilder,
get_di_scope(g, scope->parent), buf_ptr(&fn_table_entry->symbol_name), "",
import->di_file, line_number,
fn_table_entry->type_entry->di_type, fn_table_entry->internal_linkage,
is_definition, scope_line, flags, is_optimized, nullptr);
scope->di_scope = ZigLLVMSubprogramToScope(subprogram);
ZigLLVMFnSetSubprogram(fn_llvm_value(g, fn_table_entry), subprogram);
} else if (scope->node->type == NodeTypeRoot) {
scope->di_scope = ZigLLVMFileToScope(scope->node->owner->di_file);
} else if (scope->node->type == NodeTypeContainerDecl) {
ScopeDecls *decls_scope = (ScopeDecls *)scope;
assert(decls_scope->container_type);
scope->di_scope = ZigLLVMTypeToScope(decls_scope->container_type->di_type);
} else {
assert(scope->parent);
ZigLLVMDILexicalBlock *di_block = ZigLLVMCreateLexicalBlock(g->dbuilder,
get_di_scope(g, scope->parent),
scope->node->owner->di_file,
scope->node->line + 1,
scope->node->column + 1);
scope->di_scope = ZigLLVMLexicalBlockToScope(di_block);
scope->di_scope = ZigLLVMSubprogramToScope(subprogram);
ZigLLVMFnSetSubprogram(fn_llvm_value(g, fn_table_entry), subprogram);
return scope->di_scope;
}
case ScopeIdDecls:
if (scope->parent) {
ScopeDecls *decls_scope = (ScopeDecls *)scope;
assert(decls_scope->container_type);
scope->di_scope = ZigLLVMTypeToScope(decls_scope->container_type->di_type);
} else {
scope->di_scope = ZigLLVMFileToScope(import->di_file);
}
return scope->di_scope;
case ScopeIdBlock:
case ScopeIdDefer:
case ScopeIdVarDecl:
case ScopeIdLoop:
{
assert(scope->parent);
ZigLLVMDILexicalBlock *di_block = ZigLLVMCreateLexicalBlock(g->dbuilder,
get_di_scope(g, scope->parent),
import->di_file,
scope->source_node->line + 1,
scope->source_node->column + 1);
scope->di_scope = ZigLLVMLexicalBlockToScope(di_block);
return scope->di_scope;
}
}
return scope->di_scope;
zig_unreachable();
}
static void clear_debug_source_node(CodeGen *g) {
@@ -400,11 +415,11 @@ static bool ir_want_debug_safety(CodeGen *g, IrInstruction *instruction) {
// TODO memoize
Scope *scope = instruction->scope;
while (scope) {
if (scope->node->type == NodeTypeBlock) {
if (scope->id == ScopeIdBlock) {
ScopeBlock *block_scope = (ScopeBlock *)scope;
if (block_scope->safety_set_node)
return !block_scope->safety_off;
} else if (scope->node->type == NodeTypeRoot || scope->node->type == NodeTypeContainerDecl) {
} else if (scope->id == ScopeIdDecls) {
ScopeDecls *decls_scope = (ScopeDecls *)scope;
if (decls_scope->safety_set_node)
return !decls_scope->safety_off;