Commit 36da8d02b5
Changed files (6)
src
test
src/translate_c/ast.zig
@@ -161,6 +161,8 @@ pub const Node = extern union {
/// @shuffle(type, a, b, mask)
shuffle,
+ asm_simple,
+
negate,
negate_wrap,
bit_not,
@@ -245,6 +247,7 @@ pub const Node = extern union {
.std_mem_zeroes,
.@"return",
.@"comptime",
+ .asm_simple,
.discard,
.std_math_Log2Int,
.negate,
@@ -1017,6 +1020,19 @@ fn renderNode(c: *Context, node: Node) Allocator.Error!NodeIndex {
},
});
},
+ .asm_simple => {
+ const payload = node.castTag(.asm_simple).?.data;
+ const asm_token = try c.addToken(.keyword_asm, "asm");
+ _ = try c.addToken(.l_paren, "(");
+ return c.addNode(.{
+ .tag = .asm_simple,
+ .main_token = asm_token,
+ .data = .{
+ .lhs = try renderNode(c, payload),
+ .rhs = try c.addToken(.r_paren, ")"),
+ },
+ });
+ },
.type => {
const payload = node.castTag(.type).?.data;
return c.addNode(.{
@@ -2257,6 +2273,7 @@ fn renderNodeGrouped(c: *Context, node: Node) !NodeIndex {
.@"continue",
.@"return",
.@"comptime",
+ .asm_simple,
.usingnamespace_builtins,
.while_true,
.if_not_break,
src/clang.zig
@@ -905,6 +905,11 @@ pub const TypedefNameDecl = opaque {
extern fn ZigClangTypedefNameDecl_getLocation(*const TypedefNameDecl) SourceLocation;
};
+pub const FileScopeAsmDecl = opaque {
+ pub const getAsmString = ZigClangFileScopeAsmDecl_getAsmString;
+ extern fn ZigClangFileScopeAsmDecl_getAsmString(*const FileScopeAsmDecl) *const StringLiteral;
+};
+
pub const TypedefType = opaque {
pub const getDecl = ZigClangTypedefType_getDecl;
extern fn ZigClangTypedefType_getDecl(*const TypedefType) *const TypedefNameDecl;
src/translate_c.zig
@@ -480,6 +480,9 @@ fn declVisitor(c: *Context, decl: *const clang.Decl) Error!void {
.Empty => {
// Do nothing
},
+ .FileScopeAsm => {
+ try transFileScopeAsm(c, &c.global_scope.base, @ptrCast(*const clang.FileScopeAsmDecl, decl));
+ },
else => {
const decl_name = try c.str(decl.getDeclKindName());
try warn(c, &c.global_scope.base, decl.getLocation(), "ignoring {s} declaration", .{decl_name});
@@ -487,6 +490,21 @@ fn declVisitor(c: *Context, decl: *const clang.Decl) Error!void {
}
}
+fn transFileScopeAsm(c: *Context, scope: *Scope, file_scope_asm: *const clang.FileScopeAsmDecl) Error!void {
+ const asm_string = file_scope_asm.getAsmString();
+ var len: usize = undefined;
+ const bytes_ptr = asm_string.getString_bytes_begin_size(&len);
+
+ const str = try std.fmt.allocPrint(c.arena, "\"{}\"", .{std.zig.fmtEscapes(bytes_ptr[0..len])});
+ const str_node = try Tag.string_literal.create(c.arena, str);
+
+ const asm_node = try Tag.asm_simple.create(c.arena, str_node);
+ const block = try Tag.block_single.create(c.arena, asm_node);
+ const comptime_node = try Tag.@"comptime".create(c.arena, block);
+
+ try scope.appendNode(comptime_node);
+}
+
fn visitFnDecl(c: *Context, fn_decl: *const clang.FunctionDecl) Error!void {
const fn_name = try c.str(@ptrCast(*const clang.NamedDecl, fn_decl).getName_bytes_begin());
if (c.global_scope.sym_table.contains(fn_name))
src/zig_clang.cpp
@@ -1820,6 +1820,11 @@ const ZigClangEnumDecl *ZigClangEnumDecl_getDefinition(const ZigClangEnumDecl *z
return reinterpret_cast<const ZigClangEnumDecl *>(definition);
}
+const ZigClangStringLiteral *ZigClangFileScopeAsmDecl_getAsmString(const ZigClangFileScopeAsmDecl *self) {
+ const clang::StringLiteral *result = reinterpret_cast<const clang::FileScopeAsmDecl*>(self)->getAsmString();
+ return reinterpret_cast<const ZigClangStringLiteral *>(result);
+}
+
bool ZigClangRecordDecl_isUnion(const ZigClangRecordDecl *record_decl) {
return reinterpret_cast<const clang::RecordDecl*>(record_decl)->isUnion();
}
src/zig_clang.h
@@ -124,6 +124,7 @@ struct ZigClangEnumType;
struct ZigClangExpr;
struct ZigClangFieldDecl;
struct ZigClangFileID;
+struct ZigClangFileScopeAsmDecl;
struct ZigClangFloatingLiteral;
struct ZigClangForStmt;
struct ZigClangFullSourceLoc;
@@ -1000,6 +1001,8 @@ ZIG_EXTERN_C unsigned ZigClangVarDecl_getAlignedAttribute(const struct ZigClangV
ZIG_EXTERN_C unsigned ZigClangFunctionDecl_getAlignedAttribute(const struct ZigClangFunctionDecl *self, const ZigClangASTContext* ctx);
ZIG_EXTERN_C unsigned ZigClangFieldDecl_getAlignedAttribute(const struct ZigClangFieldDecl *self, const ZigClangASTContext* ctx);
+ZIG_EXTERN_C const struct ZigClangStringLiteral *ZigClangFileScopeAsmDecl_getAsmString(const struct ZigClangFileScopeAsmDecl *self);
+
ZIG_EXTERN_C struct ZigClangQualType ZigClangParmVarDecl_getOriginalType(const struct ZigClangParmVarDecl *self);
ZIG_EXTERN_C bool ZigClangRecordDecl_getPackedAttribute(const struct ZigClangRecordDecl *);
test/translate_c.zig
@@ -3499,4 +3499,18 @@ pub fn addCases(cases: *tests.TranslateCContext) void {
\\ '\u{1f4af}',
\\};
});
+
+ cases.add("global assembly",
+ \\__asm__(".globl func\n\t"
+ \\ ".type func, @function\n\t"
+ \\ "func:\n\t"
+ \\ ".cfi_startproc\n\t"
+ \\ "movl $42, %eax\n\t"
+ \\ "ret\n\t"
+ \\ ".cfi_endproc");
+ , &[_][]const u8{
+ \\comptime {
+ \\ asm (".globl func\n\t.type func, @function\n\tfunc:\n\t.cfi_startproc\n\tmovl $42, %eax\n\tret\n\t.cfi_endproc");
+ \\}
+ });
}