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-rwxr-xr-xscripts/decodetree.py15
1 files changed, 8 insertions, 7 deletions
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: