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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 <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2019-02-27 21:37:32 -08:00
parent cd3e7fc18d
commit 82bfac1c06
1 changed files with 8 additions and 7 deletions
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15
scripts/decodetree.py
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@ -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)
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: