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decodetree: Do not unconditionaly return from Pattern.output_code

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As a consequence, the 'return false' gets pushed up one level.

This will allow us to perform some other action when the
translator returns failure.

Backports commit eb6b87fac70dd62e3f1286703db20c012e7a9611 from qemu
This commit is contained in:
Richard Henderson 2019-03-13 11:13:38 -04:00 committed by Lioncash
parent edb21478b7
commit 0c1b2a5d5a
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GPG key ID: 4E3C3CC1031BA9C7
1 changed files with 4 additions and 3 deletions
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7
qemu/scripts/decodetree.py
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@ -482,8 +482,8 @@ class Pattern(General):
output(ind, self.base.extract_name(), '(&u.f_', arg, ', insn);\n')
for n, f in self.fields.items():
output(ind, 'u.f_', arg, '.', n, ' = ', f.str_extract(), ';\n')
output(ind, 'return ', translate_prefix, '_', self.name,
'(ctx, &u.f_', arg, ');\n')
output(ind, 'if (', translate_prefix, '_', self.name,
'(ctx, &u.f_', arg, ')) return true;\n')
# end Pattern
@ -911,8 +911,8 @@ class Tree:
output(ind, ' /* ',
str_match_bits(innerbits, innermask), ' */\n')
s.output_code(i + 4, extracted, innerbits, innermask)
output(ind, ' return false;\n')
output(ind, '}\n')
output(ind, 'return false;\n')
# end Tree
@ -1066,6 +1066,7 @@ def main():
output(i4, '} u;\n\n')
t.output_code(4, False, 0, 0)
output(i4, 'return false;\n')
output('}\n')