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Diffstat (limited to 'src/codegen.cpp')
-rw-r--r--src/codegen.cpp32
1 files changed, 28 insertions, 4 deletions
diff --git a/src/codegen.cpp b/src/codegen.cpp
index 8aebdf14bd..65720f6d59 100644
--- a/src/codegen.cpp
+++ b/src/codegen.cpp
@@ -2282,12 +2282,16 @@ static LLVMValueRef gen_while_expr(CodeGen *g, AstNode *node) {
assert(node->data.while_expr.condition);
assert(node->data.while_expr.body);
+ AstNode *continue_expr_node = node->data.while_expr.continue_expr;
+
bool condition_always_true = node->data.while_expr.condition_always_true;
bool contains_break = node->data.while_expr.contains_break;
if (condition_always_true) {
// generate a forever loop
LLVMBasicBlockRef body_block = LLVMAppendBasicBlock(g->cur_fn->fn_value, "WhileBody");
+ LLVMBasicBlockRef continue_block = continue_expr_node ?
+ LLVMAppendBasicBlock(g->cur_fn->fn_value, "WhileContinue") : body_block;
LLVMBasicBlockRef end_block = nullptr;
if (contains_break) {
end_block = LLVMAppendBasicBlock(g->cur_fn->fn_value, "WhileEnd");
@@ -2296,16 +2300,25 @@ static LLVMValueRef gen_while_expr(CodeGen *g, AstNode *node) {
add_debug_source_node(g, node);
LLVMBuildBr(g->builder, body_block);
+ if (continue_expr_node) {
+ LLVMPositionBuilderAtEnd(g->builder, continue_block);
+
+ gen_expr(g, continue_expr_node);
+
+ add_debug_source_node(g, node);
+ LLVMBuildBr(g->builder, body_block);
+ }
+
LLVMPositionBuilderAtEnd(g->builder, body_block);
g->break_block_stack.append(end_block);
- g->continue_block_stack.append(body_block);
+ g->continue_block_stack.append(continue_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) {
add_debug_source_node(g, node);
- LLVMBuildBr(g->builder, body_block);
+ LLVMBuildBr(g->builder, continue_block);
}
if (contains_break) {
@@ -2316,11 +2329,22 @@ static LLVMValueRef gen_while_expr(CodeGen *g, AstNode *node) {
LLVMBasicBlockRef cond_block = LLVMAppendBasicBlock(g->cur_fn->fn_value, "WhileCond");
LLVMBasicBlockRef body_block = LLVMAppendBasicBlock(g->cur_fn->fn_value, "WhileBody");
+ LLVMBasicBlockRef continue_block = continue_expr_node ?
+ LLVMAppendBasicBlock(g->cur_fn->fn_value, "WhileContinue") : cond_block;
LLVMBasicBlockRef end_block = LLVMAppendBasicBlock(g->cur_fn->fn_value, "WhileEnd");
add_debug_source_node(g, node);
LLVMBuildBr(g->builder, cond_block);
+ if (continue_expr_node) {
+ LLVMPositionBuilderAtEnd(g->builder, continue_block);
+
+ gen_expr(g, continue_expr_node);
+
+ add_debug_source_node(g, node);
+ LLVMBuildBr(g->builder, cond_block);
+ }
+
LLVMPositionBuilderAtEnd(g->builder, cond_block);
LLVMValueRef cond_val = gen_expr(g, node->data.while_expr.condition);
add_debug_source_node(g, node->data.while_expr.condition);
@@ -2328,13 +2352,13 @@ 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);
+ g->continue_block_stack.append(continue_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) {
add_debug_source_node(g, node);
- LLVMBuildBr(g->builder, cond_block);
+ LLVMBuildBr(g->builder, continue_block);
}
LLVMPositionBuilderAtEnd(g->builder, end_block);