mirror/zig
1
0
Fork 0
mirror of https://github.com/ziglang/zig.git synced 2026-01-09 08:55:36 +00:00
Code Issues Packages Projects Releases Wiki Activity

Builder: Emit metadata attachment for globals

Browse Source
This commit is contained in:
antlilja 2024-02-24 01:36:20 +01:00
parent ceb2c030c4
commit 9b39e824cd
2 changed files with 41 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

27
src/codegen/llvm/Builder.zig
View File

@ -13853,16 +13853,12 @@ pub fn toBitcode(self: *Builder, allocator: Allocator) bitcode_writer.Error![]co
try constants_block.end();
}
const MetadataKind = enum(u8) {
dbg = 0,
};
// METADATA_KIND_BLOCK
if (!self.strip) {
const MetadataKindBlock = ir.MetadataKindBlock;
var metadata_kind_block = try module_block.enterSubBlock(MetadataKindBlock);
inline for (@typeInfo(MetadataKind).Enum.fields) |field| {
inline for (@typeInfo(ir.MetadataKind).Enum.fields) |field| {
try metadata_kind_block.writeAbbrev(MetadataKindBlock.Kind{
.id = field.value,
.name = field.name,
@ -14296,6 +14292,25 @@ pub fn toBitcode(self: *Builder, allocator: Allocator) bitcode_writer.Error![]co
});
}
// Write global attached metadata
{
for (globals.keys()) |global| {
const global_ptr = global.ptrConst(self);
if (global_ptr.dbg == .none) continue;
switch (global_ptr.kind) {
.function => |f| if (f.ptrConst(self).instructions.len != 0) continue,
else => {},
}
try metadata_block.writeAbbrev(MetadataBlock.GlobalDeclAttachment{
.value = @enumFromInt(constant_adapter.getConstantIndex(global.toConst())),
.kind = ir.MetadataKind.dbg,
.metadata = @enumFromInt(metadata_adapter.getMetadataIndex(global_ptr.dbg) - 1),
});
}
}
try metadata_block.end();
}
@ -14909,7 +14924,7 @@ pub fn toBitcode(self: *Builder, allocator: Allocator) bitcode_writer.Error![]co
var metadata_attach_block = try function_block.enterSubBlock(MetadataAttachmentBlock);
try metadata_attach_block.writeAbbrev(MetadataAttachmentBlock.AttachmentSingle{
.id = @intFromEnum(MetadataKind.dbg),
.kind = ir.MetadataKind.dbg,
.metadata = @enumFromInt(metadata_adapter.getMetadataIndex(dbg) - 1),
});

22
src/codegen/llvm/ir.zig
View File

@ -20,6 +20,10 @@ const ColumnAbbrev = AbbrevOp{ .vbr = 8 };
const BlockAbbrev = AbbrevOp{ .vbr = 6 };
pub const MetadataKind = enum(u1) {
dbg = 0,
};
pub const Identification = struct {
pub const id = 13;
@ -616,10 +620,10 @@ pub const MetadataAttachmentBlock = struct {
pub const AttachmentSingle = struct {
pub const ops = [_]AbbrevOp{
.{ .literal = 11 },
.{ .vbr = 4 },
.{ .fixed = 1 },
MetadataAbbrev,
};
id: u32,
kind: MetadataKind,
metadata: Builder.Metadata,
};
};
@ -649,6 +653,7 @@ pub const MetadataBlock = struct {
Constant,
Name,
NamedNode,
GlobalDeclAttachment,
};
pub const Strings = struct {
@ -1045,6 +1050,19 @@ pub const MetadataBlock = struct {
elements: []const Builder.Metadata,
};
pub const GlobalDeclAttachment = struct {
pub const ops = [_]AbbrevOp{
.{ .literal = 36 },
ValueAbbrev, // value id
.{ .fixed = 1 }, // kind
MetadataAbbrev, // elements
};
value: Builder.Constant,
kind: MetadataKind,
metadata: Builder.Metadata,
};
};
pub const FunctionMetadataBlock = struct {