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Another quick goto eliminiation optimization for decompiler.

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This commit is contained in:
Jennifer Taylor
2021-07-15 00:15:28 +00:00
parent 244f54d93f
commit 2895bfc050
1 changed files with 8 additions and 0 deletions
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8
bemani/format/afp/decompile.py
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@@ -2707,6 +2707,13 @@ class ByteCodeDecompiler(VerboseOutput):
if cur_statement.location == next_statement.location:
gotos.append(cur_statement)
if (
isinstance(cur_statement, GotoStatement) and
isinstance(next_statement, GotoStatement)
):
if cur_statement.location == next_statement.location:
gotos.append(cur_statement)
elif isinstance(cur_statement, DoWhileStatement):
# Loops do not "flow" into the next line, they can only "break" to the next
# line. Goto of the next line has already been converted to a "break" statement.
@@ -2727,6 +2734,7 @@ class ByteCodeDecompiler(VerboseOutput):
# switch case first instruction when we don't. This isn't perfect, but eliminates
# a lot of gotos in practice.
cases = cur_statement.cases
def get_next_instruction(case: SwitchCase) -> Statement:
found = False