hohn/codeql
1
0
Fork 0
mirror of https://github.com/github/codeql.git synced 2025-12-24 04:36:35 +01:00
Code Issues Packages Projects Releases Wiki Activity

C++: Fix conflation issue.

Browse Source
This commit is contained in:
Mathias Vorreiter Pedersen
2024-01-10 11:55:39 +00:00
parent 259bf27334
commit 0c3ea6c5df
1 changed files with 10 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

15
cpp/ql/lib/semmle/code/cpp/ir/dataflow/internal/SsaInternals.qll
View File

@@ -149,11 +149,16 @@ private newtype TDefOrUseImpl =
private predicate isGlobalUse(
GlobalLikeVariable v, IRFunction f, int indirection, int indirectionIndex
) {
exists(VariableAddressInstruction vai |
vai.getEnclosingIRFunction() = f and
vai.getAstVariable() = v and
isDef(_, _, _, vai, indirection, indirectionIndex)
)
// Generate a "global use" at the end of the function body if there's a
// direct definition somewhere in the body of the function
indirection =
min(int cand, VariableAddressInstruction vai |
vai.getEnclosingIRFunction() = f and
vai.getAstVariable() = v and
isDef(_, _, _, vai, cand, indirectionIndex)
|
cand
)
}
private predicate isGlobalDefImpl(