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llvm: enable even without libllvm linked

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This commit is contained in:
Jacob Young
2023-08-09 00:24:17 -04:00
parent 151c06cce4
commit c4848694d2
8 changed files with 112 additions and 168 deletions
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75
src/codegen/llvm.zig
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@@ -8,7 +8,7 @@ const native_endian = builtin.cpu.arch.endian();
const DW = std.dwarf;
const Builder = @import("llvm/Builder.zig");
const llvm = if (build_options.have_llvm or true)
const llvm = if (build_options.have_llvm)
@import("llvm/bindings.zig")
else
@compileError("LLVM unavailable");
@@ -764,15 +764,37 @@ pub const Object = struct {
builder: Builder,
module: *Module,
di_builder: ?*llvm.DIBuilder,
di_builder: ?if (build_options.have_llvm) *llvm.DIBuilder else noreturn,
/// One of these mappings:
/// - *Module.File => *DIFile
/// - *Module.Decl (Fn) => *DISubprogram
/// - *Module.Decl (Non-Fn) => *DIGlobalVariable
di_map: std.AutoHashMapUnmanaged(*const anyopaque, *llvm.DINode),
di_compile_unit: ?*llvm.DICompileUnit,
target_machine: *llvm.TargetMachine,
target_data: *llvm.TargetData,
di_map: if (build_options.have_llvm) std.AutoHashMapUnmanaged(*const anyopaque, *llvm.DINode) else struct {
const K = *const anyopaque;
const V = noreturn;
const Self = @This();
metadata: ?noreturn = null,
size: Size = 0,
available: Size = 0,
pub const Size = u0;
pub fn deinit(self: *Self, allocator: Allocator) void {
_ = allocator;
self.* = undefined;
}
pub fn get(self: Self, key: K) ?V {
_ = self;
_ = key;
return null;
}
},
di_compile_unit: ?if (build_options.have_llvm) *llvm.DICompileUnit else noreturn,
target_machine: if (build_options.have_llvm) *llvm.TargetMachine else void,
target_data: if (build_options.have_llvm) *llvm.TargetData else void,
target: std.Target,
/// Ideally we would use `llvm_module.getNamedFunction` to go from *Decl to LLVM function,
/// but that has some downsides:
@@ -830,8 +852,8 @@ pub const Object = struct {
});
errdefer builder.deinit();
var target_machine: *llvm.TargetMachine = undefined;
var target_data: *llvm.TargetData = undefined;
var target_machine: if (build_options.have_llvm) *llvm.TargetMachine else void = undefined;
var target_data: if (build_options.have_llvm) *llvm.TargetData else void = undefined;
if (builder.useLibLlvm()) {
if (!options.strip) {
switch (options.target.ofmt) {
@@ -946,7 +968,7 @@ pub const Object = struct {
.module = options.module.?,
.di_map = .{},
.di_builder = if (builder.useLibLlvm()) builder.llvm.di_builder else null, // TODO
.di_compile_unit = builder.llvm.di_compile_unit,
.di_compile_unit = if (builder.useLibLlvm()) builder.llvm.di_compile_unit else null,
.target_machine = target_machine,
.target_data = target_data,
.target = options.target,
@@ -961,9 +983,9 @@ pub const Object = struct {
}
pub fn deinit(self: *Object, gpa: Allocator) void {
self.di_map.deinit(gpa);
self.di_type_map.deinit(gpa);
if (self.builder.useLibLlvm()) {
self.di_map.deinit(gpa);
self.di_type_map.deinit(gpa);
self.target_data.dispose();
self.target_machine.dispose();
}
@@ -1519,8 +1541,8 @@ pub const Object = struct {
function_index.setAttributes(try attributes.finish(&o.builder), &o.builder);
var di_file: ?*llvm.DIFile = null;
var di_scope: ?*llvm.DIScope = null;
var di_file: ?if (build_options.have_llvm) *llvm.DIFile else noreturn = null;
var di_scope: ?if (build_options.have_llvm) *llvm.DIScope else noreturn = null;
if (o.di_builder) |dib| {
di_file = try o.getDIFile(gpa, mod.namespacePtr(decl.src_namespace).file_scope);
@@ -4425,7 +4447,8 @@ pub const DeclGen = struct {
}, &o.builder);
if (o.di_builder) |dib| {
const di_file = try o.getDIFile(o.gpa, mod.namespacePtr(decl.src_namespace).file_scope);
const di_file =
try o.getDIFile(o.gpa, mod.namespacePtr(decl.src_namespace).file_scope);
const line_number = decl.src_line + 1;
const is_internal_linkage = !o.module.decl_exports.contains(decl_index);
@@ -4453,18 +4476,18 @@ pub const FuncGen = struct {
air: Air,
liveness: Liveness,
wip: Builder.WipFunction,
di_scope: ?*llvm.DIScope,
di_file: ?*llvm.DIFile,
di_scope: ?if (build_options.have_llvm) *llvm.DIScope else noreturn,
di_file: ?if (build_options.have_llvm) *llvm.DIFile else noreturn,
base_line: u32,
prev_dbg_line: c_uint,
prev_dbg_column: c_uint,
/// Stack of locations where a call was inlined.
dbg_inlined: std.ArrayListUnmanaged(DbgState) = .{},
dbg_inlined: std.ArrayListUnmanaged(if (build_options.have_llvm) DbgState else void) = .{},
/// Stack of `DILexicalBlock`s. dbg_block instructions cannot happend accross
/// dbg_inline instructions so no special handling there is required.
dbg_block_stack: std.ArrayListUnmanaged(*llvm.DIScope) = .{},
dbg_block_stack: std.ArrayListUnmanaged(if (build_options.have_llvm) *llvm.DIScope else void) = .{},
/// This stores the LLVM values used in a function, such that they can be referred to
/// in other instructions. This table is cleared before every function is generated.
@@ -4495,7 +4518,7 @@ pub const FuncGen = struct {
sync_scope: Builder.SyncScope,
const DbgState = struct { loc: *llvm.DILocation, scope: *llvm.DIScope, base_line: u32 };
const DbgState = if (build_options.have_llvm) struct { loc: *llvm.DILocation, scope: *llvm.DIScope, base_line: u32 } else struct {};
const BreakList = union {
list: std.MultiArrayList(struct {
bb: Builder.Function.Block.Index,
@@ -6230,8 +6253,6 @@ pub const FuncGen = struct {
}
fn airDbgStmt(self: *FuncGen, inst: Air.Inst.Index) !Builder.Value {
if (!self.dg.object.builder.useLibLlvm()) return .none;
const di_scope = self.di_scope orelse return .none;
const dbg_stmt = self.air.instructions.items(.data)[inst].dbg_stmt;
self.prev_dbg_line = @intCast(self.base_line + dbg_stmt.line + 1);
@@ -6251,8 +6272,6 @@ pub const FuncGen = struct {
fn airDbgInlineBegin(self: *FuncGen, inst: Air.Inst.Index) !Builder.Value {
const o = self.dg.object;
if (!o.builder.useLibLlvm()) return .none;
const dib = o.di_builder orelse return .none;
const ty_fn = self.air.instructions.items(.data)[inst].ty_fn;
@@ -6311,8 +6330,6 @@ pub const FuncGen = struct {
fn airDbgInlineEnd(self: *FuncGen, inst: Air.Inst.Index) !Builder.Value {
const o = self.dg.object;
if (!o.builder.useLibLlvm()) return .none;
if (o.di_builder == null) return .none;
const ty_fn = self.air.instructions.items(.data)[inst].ty_fn;
@@ -6328,8 +6345,6 @@ pub const FuncGen = struct {
fn airDbgBlockBegin(self: *FuncGen) !Builder.Value {
const o = self.dg.object;
if (!o.builder.useLibLlvm()) return .none;
const dib = o.di_builder orelse return .none;
const old_scope = self.di_scope.?;
try self.dbg_block_stack.append(self.gpa, old_scope);
@@ -6340,8 +6355,6 @@ pub const FuncGen = struct {
fn airDbgBlockEnd(self: *FuncGen) !Builder.Value {
const o = self.dg.object;
if (!o.builder.useLibLlvm()) return .none;
if (o.di_builder == null) return .none;
self.di_scope = self.dbg_block_stack.pop();
return .none;
@@ -6349,8 +6362,6 @@ pub const FuncGen = struct {
fn airDbgVarPtr(self: *FuncGen, inst: Air.Inst.Index) !Builder.Value {
const o = self.dg.object;
if (!o.builder.useLibLlvm()) return .none;
const mod = o.module;
const dib = o.di_builder orelse return .none;
const pl_op = self.air.instructions.items(.data)[inst].pl_op;
@@ -6379,8 +6390,6 @@ pub const FuncGen = struct {
fn airDbgVarVal(self: *FuncGen, inst: Air.Inst.Index) !Builder.Value {
const o = self.dg.object;
if (!o.builder.useLibLlvm()) return .none;
const dib = o.di_builder orelse return .none;
const pl_op = self.air.instructions.items(.data)[inst].pl_op;
const operand = try self.resolveInst(pl_op.operand);