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Fix BitVecExtract simplification for constant folding #2524

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merged 5 commits into from
Jan 20, 2022
+12 −4
Merged

Fix BitVecExtract simplification for constant folding #2524

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e7f3511
Fix BitVecExtract simplification for constant folding
Boyan-MILANOV Jan 20, 2022
5e06d77
Lint
Boyan-MILANOV Jan 20, 2022
ee06c99
Add test for extract constant folding
Boyan-MILANOV Jan 20, 2022
9e5a37f
Lint
Boyan-MILANOV Jan 20, 2022
90e3c2b
Test: pass BitVecExtract args with keywords
Boyan-MILANOV Jan 20, 2022
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Fix BitVecExtract simplification for constant folding
@Boyan-MILANOV
Boyan-MILANOV committed Jan 20, 2022

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tvdeyen Thomas von Deyen
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commit e7f3511d99ace81ffd5654937aeb3e4ae94164af
2 changes: 1 addition & 1 deletion manticore/core/smtlib/visitors.py
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Original file line number Diff line number Diff line change
@@ -384,7 +384,7 @@ def visit_BitVecExtract(self, expression, *operands):
begining = expression.begining
end = expression.end
value = value >> begining
mask = (1 << (end - begining)) - 1
mask = (1 << (end - begining+1)) - 1
value = value & mask
return BitVecConstant(size=expression.size, value=value, taint=expression.taint)