motiejus/zig
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add break expression

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This commit is contained in:
Andrew Kelley
2015-12-24 15:09:35 -07:00
parent ffc593b808
commit 5ceaae288c
7 changed files with 55 additions and 2 deletions
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12
src/codegen.cpp
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@@ -1024,13 +1024,23 @@ static LLVMValueRef gen_while_expr(CodeGen *g, AstNode *node) {
LLVMBuildCondBr(g->builder, cond_val, body_block, end_block);
LLVMPositionBuilderAtEnd(g->builder, body_block);
g->cur_break_block = end_block;
gen_expr(g, node->data.while_expr.body);
g->cur_break_block = nullptr;
LLVMBuildBr(g->builder, cond_block);
LLVMPositionBuilderAtEnd(g->builder, end_block);
return nullptr;
}
static LLVMValueRef gen_break(CodeGen *g, AstNode *node) {
assert(node->type == NodeTypeBreak);
assert(g->cur_break_block);
add_debug_source_node(g, node);
return LLVMBuildBr(g->builder, g->cur_break_block);
}
static LLVMValueRef gen_expr_no_cast(CodeGen *g, AstNode *node) {
switch (node->type) {
case NodeTypeBinOpExpr:
@@ -1160,6 +1170,8 @@ static LLVMValueRef gen_expr_no_cast(CodeGen *g, AstNode *node) {
case NodeTypeGoto:
add_debug_source_node(g, node);
return LLVMBuildBr(g->builder, node->codegen_node->data.label_entry->basic_block);
case NodeTypeBreak:
return gen_break(g, node);
case NodeTypeLabel:
{
LabelTableEntry *label_entry = node->codegen_node->data.label_entry;