From 82bfac1c06cadeb5c7252734dc695d951185916c Mon Sep 17 00:00:00 2001 From: Richard Henderson Date: Wed, 27 Feb 2019 21:37:32 -0800 Subject: decodetree: Produce clean output for an empty input file This is interesting for bisection, where an output file is plumbed, but does not yet have patterns. Signed-off-by: Richard Henderson --- scripts/decodetree.py | 15 ++++++++------- 1 file changed, 8 insertions(+), 7 deletions(-) (limited to 'scripts') diff --git a/scripts/decodetree.py b/scripts/decodetree.py index 6067e940ab..6e7ba278be 100755 --- a/scripts/decodetree.py +++ b/scripts/decodetree.py @@ -1049,15 +1049,16 @@ def main(): '(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') - t.output_code(4, False, 0, 0) - output(i4, 'return false;\n') + if len(allpatterns) != 0: + 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) + output(i4, 'return false;\n') output('}\n') if output_file: -- cgit v1.2.3