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simplify expressions that could be type-casts

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This commit is contained in:
Erik Krogh Kristensen
2022-01-20 10:41:35 +01:00
parent 547f492be0
commit 4e8e3a7420
70 changed files with 123 additions and 143 deletions
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4
cpp/ql/lib/semmle/code/cpp/controlflow/IRGuards.qll
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@@ -29,7 +29,7 @@ class GuardCondition extends Expr {
exists(IRGuardCondition ir | this = ir.getUnconvertedResultExpression())
or
// no binary operators in the IR
exists(GuardCondition gc | this.(BinaryLogicalOperation).getAnOperand() = gc)
this.(BinaryLogicalOperation).getAnOperand() instanceof GuardCondition
or
// the IR short-circuits if(!x)
// don't produce a guard condition for `y = !x` and other non-short-circuited cases
@@ -98,7 +98,7 @@ class GuardCondition extends Expr {
*/
private class GuardConditionFromBinaryLogicalOperator extends GuardCondition {
GuardConditionFromBinaryLogicalOperator() {
exists(GuardCondition gc | this.(BinaryLogicalOperation).getAnOperand() = gc)
this.(BinaryLogicalOperation).getAnOperand() instanceof GuardCondition
}
override predicate controls(BasicBlock controlled, boolean testIsTrue) {