motiejus/zig
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implement continue expression

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closes #6
This commit is contained in:
Andrew Kelley
2015-12-24 15:36:49 -07:00
parent 44ca5e19dc
commit 5943f99510
7 changed files with 55 additions and 11 deletions
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12
src/codegen.cpp
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@@ -1025,8 +1025,10 @@ static LLVMValueRef gen_while_expr(CodeGen *g, AstNode *node) {
LLVMPositionBuilderAtEnd(g->builder, body_block);
g->break_block_stack.append(end_block);
g->continue_block_stack.append(cond_block);
gen_expr(g, node->data.while_expr.body);
g->break_block_stack.pop();
g->continue_block_stack.pop();
if (get_expr_type(node->data.while_expr.body)->id != TypeTableEntryIdUnreachable) {
LLVMBuildBr(g->builder, cond_block);
}
@@ -1043,6 +1045,14 @@ static LLVMValueRef gen_break(CodeGen *g, AstNode *node) {
return LLVMBuildBr(g->builder, dest_block);
}
static LLVMValueRef gen_continue(CodeGen *g, AstNode *node) {
assert(node->type == NodeTypeContinue);
LLVMBasicBlockRef dest_block = g->continue_block_stack.last();
add_debug_source_node(g, node);
return LLVMBuildBr(g->builder, dest_block);
}
static LLVMValueRef gen_expr_no_cast(CodeGen *g, AstNode *node) {
switch (node->type) {
case NodeTypeBinOpExpr:
@@ -1174,6 +1184,8 @@ static LLVMValueRef gen_expr_no_cast(CodeGen *g, AstNode *node) {
return LLVMBuildBr(g->builder, node->codegen_node->data.label_entry->basic_block);
case NodeTypeBreak:
return gen_break(g, node);
case NodeTypeContinue:
return gen_continue(g, node);
case NodeTypeLabel:
{
LabelTableEntry *label_entry = node->codegen_node->data.label_entry;