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add local variables to debug info

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This commit is contained in:
Andrew Kelley 2015-12-07 23:09:48 -07:00
parent 9c9ea93519
commit 113f0c9450
3 changed files with 33 additions and 4 deletions
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14
src/codegen.cpp
View File

@ -528,7 +528,15 @@ static LLVMValueRef gen_expr(CodeGen *g, AstNode *node) {
return nullptr;
} else {
add_debug_source_node(g, node);
return LLVMBuildStore(g->builder, value, variable->value_ref);
variable->value_ref = LLVMBuildAlloca(g->builder,
variable->type->type_ref, buf_ptr(&variable->name));
LLVMValueRef store_instr = LLVMBuildStore(g->builder, value, variable->value_ref);
LLVMZigDILocation *debug_loc = LLVMZigGetDebugLoc(node->line + 1, node->column + 1,
g->cur_block_context->di_scope);
LLVMZigInsertDeclare(g->dbuilder, variable->value_ref, variable->di_loc_var,
debug_loc, store_instr);
return nullptr;
}
}
case NodeTypeCastExpr:
@ -577,6 +585,7 @@ static LLVMValueRef gen_expr(CodeGen *g, AstNode *node) {
if (variable->type == g->builtin_types.entry_void) {
return nullptr;
} else if (variable->is_ptr) {
add_debug_source_node(g, node);
return LLVMBuildLoad(g->builder, variable->value_ref, "");
} else {
return variable->value_ref;
@ -770,9 +779,6 @@ static void do_code_gen(CodeGen *g) {
} else {
tag = LLVMZigTag_DW_auto_variable();
arg_no = 0;
add_debug_source_node(g, var->decl_node);
var->value_ref = LLVMBuildAlloca(g->builder, var->type->type_ref, buf_ptr(&var->name));
}
var->di_loc_var = LLVMZigCreateLocalVariable(g->dbuilder, tag,

18
src/zig_llvm.cpp
View File

@ -304,6 +304,24 @@ void LLVMZigRestoreInsertPoint(LLVMBuilderRef builder, LLVMZigInsertionPoint *ip
unwrap(builder)->restoreIP(*ip);
}
LLVMValueRef LLVMZigInsertDeclare(LLVMZigDIBuilder *dibuilder, LLVMValueRef storage,
LLVMZigDILocalVariable *var_info, LLVMZigDILocation *debug_loc, LLVMValueRef insert_before_instr)
{
Instruction *result = reinterpret_cast<DIBuilder*>(dibuilder)->insertDeclare(
unwrap(storage),
reinterpret_cast<DILocalVariable *>(var_info),
reinterpret_cast<DIBuilder*>(dibuilder)->createExpression(),
reinterpret_cast<DILocation*>(debug_loc),
static_cast<Instruction*>(unwrap(insert_before_instr)));
return wrap(result);
}
LLVMZigDILocation *LLVMZigGetDebugLoc(unsigned line, unsigned col, LLVMZigDIScope *scope) {
DebugLoc debug_loc = DebugLoc::get(line, col, reinterpret_cast<DIScope*>(scope), nullptr);
return reinterpret_cast<LLVMZigDILocation*>(debug_loc.get());
}
//------------------------------------
enum FloatAbi {

5
src/zig_llvm.hpp
View File

@ -23,6 +23,7 @@ struct LLVMZigDILexicalBlock;
struct LLVMZigDISubprogram;
struct LLVMZigDISubroutineType;
struct LLVMZigDILocalVariable;
struct LLVMZigDILocation;
struct LLVMZigInsertionPoint;
void LLVMZigInitializeLoopStrengthReducePass(LLVMPassRegistryRef R);
@ -91,6 +92,10 @@ void LLVMZigDIBuilderFinalize(LLVMZigDIBuilder *dibuilder);
LLVMZigInsertionPoint *LLVMZigSaveInsertPoint(LLVMBuilderRef builder);
void LLVMZigRestoreInsertPoint(LLVMBuilderRef builder, LLVMZigInsertionPoint *point);
LLVMValueRef LLVMZigInsertDeclare(LLVMZigDIBuilder *dibuilder, LLVMValueRef storage,
LLVMZigDILocalVariable *var_info, LLVMZigDILocation *debug_loc, LLVMValueRef insert_before_instr);
LLVMZigDILocation *LLVMZigGetDebugLoc(unsigned line, unsigned col, LLVMZigDIScope *scope);
/*
* This stuff is not LLVM API but it depends on the LLVM C++ API so we put it here.