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CBE: Cleanup unimplementeds

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This commit is contained in:
Noam Preil 2020-07-07 23:59:55 -04:00
parent 089c056dbe
commit 9aaffe00d3
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GPG Key ID: FC347E7C85BE8238
2 changed files with 33 additions and 24 deletions
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42
src-self-hosted/cgen.zig
View File

@ -15,7 +15,7 @@ fn map(name: []const u8) ![]const u8 {
return name;
}
fn renderType(file: *C, writer: std.ArrayList(u8).Writer, T: Type) !void {
fn renderType(file: *C, writer: std.ArrayList(u8).Writer, T: Type, src: usize) !void {
if (T.tag() == .usize) {
file.need_stddef = true;
try writer.writeAll("size_t");
@ -26,20 +26,20 @@ fn renderType(file: *C, writer: std.ArrayList(u8).Writer, T: Type) !void {
try writer.writeAll("noreturn void");
},
.Void => try writer.writeAll("void"),
else => return error.Unimplemented,
else => |e| return file.fail(src, "TODO implement type {}", .{e}),
}
}
}
fn renderFunctionSignature(file: *C, writer: std.ArrayList(u8).Writer, decl: *Decl) !void {
const tv = decl.typed_value.most_recent.typed_value;
try renderType(file, writer, tv.ty.fnReturnType());
try renderType(file, writer, tv.ty.fnReturnType(), decl.src());
const name = try map(mem.spanZ(decl.name));
try writer.print(" {}(", .{name});
if (tv.ty.fnParamLen() == 0) {
try writer.writeAll("void)");
} else {
return error.Unimplemented;
return file.fail(decl.src(), "TODO implement parameters", .{});
}
}
@ -68,21 +68,21 @@ pub fn generate(file: *C, decl: *Decl) !void {
if (arg.cast(ir.Inst.Constant)) |c| {
if (c.val.tag() == .int_u64) {
try writer.writeAll("register ");
try renderType(file, writer, arg.ty);
try renderType(file, writer, arg.ty, decl.src());
try writer.print(" {}_constant __asm__(\"{}\") = {};\n\t", .{ reg, reg, c.val.toUnsignedInt() });
} else {
return error.Unimplemented;
return file.fail(decl.src(), "TODO inline asm {} args", .{c.val.tag()});
}
} else {
return error.Unimplemented;
return file.fail(decl.src(), "TODO non-constant inline asm args", .{});
}
} else {
return error.Unimplemented;
return file.fail(decl.src(), "TODO non-explicit inline asm regs", .{});
}
}
try writer.print("__asm {} (\"{}\"", .{ if (as.is_volatile) @as([]const u8, "volatile") else "", as.asm_source });
if (as.output) |o| {
return error.Unimplemented;
return file.fail(decl.src(), "TODO inline asm output", .{});
}
if (as.inputs.len > 0) {
if (as.output == null) {
@ -99,10 +99,12 @@ pub fn generate(file: *C, decl: *Decl) !void {
if (arg.cast(ir.Inst.Constant)) |c| {
try writer.print("\"\"({}_constant)", .{reg});
} else {
return error.Unimplemented;
// This is blocked by the earlier test
unreachable;
}
} else {
return error.Unimplemented;
// This is blocked by the earlier test
unreachable;
}
}
}
@ -121,20 +123,17 @@ pub fn generate(file: *C, decl: *Decl) !void {
}
try writer.print("{}();", .{tname});
} else {
std.debug.warn("non-function call target?\n", .{});
return error.Unimplemented;
return file.fail(decl.src(), "TODO non-function call target?", .{});
}
if (call.args.len != 0) {
std.debug.warn("parameters\n", .{});
return error.Unimplemented;
return file.fail(decl.src(), "TODO function arguments", .{});
}
} else {
std.debug.warn("non-constant call inst?\n", .{});
return error.Unimplemented;
return file.fail(decl.src(), "TODO non-constant call inst?", .{});
}
},
else => {
std.debug.warn("\nTranslating {}\n", .{inst.*});
else => |e| {
return file.fail(decl.src(), "TODO {}", .{e});
},
}
}
@ -151,13 +150,12 @@ pub fn generate(file: *C, decl: *Decl) !void {
std.debug.warn("\n\nARRAYTRANS\n", .{});
if (tv.ty.arraySentinel()) |sentinel| {}
} else {
return error.Unimplemented;
return file.fail(decl.src(), "TODO non-byte arrays", .{});
}
}
},
else => |e| {
std.debug.warn("\nTODO implement {}\n", .{e});
return error.Unimplemented;
return file.fail(decl.src(), "TODO {}", .{e});
},
}
}

15
src-self-hosted/link.zig
View File

@ -227,6 +227,12 @@ pub const File = struct {
need_stddef: bool = false,
need_stdint: bool = false,
need_noreturn: bool = false,
error_msg: *Module.ErrorMsg = undefined,
pub fn fail(self: *C, src: usize, comptime format: []const u8, args: var) !void {
self.error_msg = try Module.ErrorMsg.create(self.allocator, src, format, args);
return error.CGenFailure;
}
pub fn deinit(self: *File.C) void {
self.main.deinit();
@ -237,7 +243,12 @@ pub const File = struct {
}
pub fn updateDecl(self: *File.C, module: *Module, decl: *Module.Decl) !void {
try cgen.generate(self, decl);
cgen.generate(self, decl) catch |err| {
if (err == error.CGenFailure) {
try module.failed_decls.put(decl, self.error_msg);
}
return err;
};
}
pub fn flush(self: *File.C) !void {
@ -1185,7 +1196,7 @@ pub const File = struct {
.appended => code_buffer.items,
.fail => |em| {
decl.analysis = .codegen_failure;
_ = try module.failed_decls.put(decl, em);
try module.failed_decls.put(decl, em);
return;
},
};