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C++: Expand comments.

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This commit is contained in:
Mathias Vorreiter Pedersen
2023-02-09 17:10:07 +00:00
parent 6b851d0529
commit 981c976754
1 changed files with 2 additions and 1 deletions
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cpp/ql/lib/semmle/code/cpp/ir/dataflow/internal/DataFlowPrivate.qll
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@@ -439,7 +439,6 @@ predicate operandForFullyConvertedCall(Operand operand, CallInstruction call) {
private predicate instructionForFullyConvertedCallWithConversions(
Instruction instr, CallInstruction call
) {
// Otherwise, flow to the first non-conversion use.
instr =
getUse(unique(Operand operand |
operand = fullyConvertedCallStep*(getAUse(call)) and
@@ -455,12 +454,14 @@ private predicate instructionForFullyConvertedCallWithConversions(
* conversion instruction) to use to represent the value of `call` after conversions.
*/
predicate instructionForFullyConvertedCall(Instruction instr, CallInstruction call) {
// Only pick an instruction for the call if we cannot pick a unique operand.
not operandForFullyConvertedCall(_, call) and
(
// If there is no use of the call then we pick the call instruction
not instructionForFullyConvertedCallWithConversions(_, call) and
instr = call
or
// Otherwise, flow to the first instruction that defines multiple operands.
instructionForFullyConvertedCallWithConversions(instr, call)
)
}