Starting with empty specifications allow to write stubs/templates, useful when testing/rebasing.
This fixes: decode.inc.c: In function ‘decode’: decode.inc.c:9:7: error: unused variable ‘u’ [-Werror=unused-variable] } u; ^ Signed-off-by: Philippe Mathieu-Daudé <f4...@amsat.org> --- scripts/decodetree.py | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) diff --git a/scripts/decodetree.py b/scripts/decodetree.py index 08aa52d544..41ed67132d 100755 --- a/scripts/decodetree.py +++ b/scripts/decodetree.py @@ -1060,12 +1060,13 @@ def main(): output(decode_scope, 'bool ', decode_function, '(DisasContext *ctx, ', insntype, ' insn)\n{\n') - i4 = str_indent(4) - output(i4, 'union {\n') - for n in sorted(arguments.keys()): - f = arguments[n] - output(i4, i4, f.struct_name(), ' f_', f.name, ';\n') - output(i4, '} u;\n\n') + if arguments: + i4 = str_indent(4) + output(i4, 'union {\n') + for n in sorted(arguments.keys()): + f = arguments[n] + output(i4, i4, f.struct_name(), ' f_', f.name, ';\n') + output(i4, '} u;\n\n') t.output_code(4, False, 0, 0) -- 2.17.2