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PR analyzer/93375 reports an ICE under certain circumstances involving a call where the number of arguments at the callsite is less than the parameter count of the callee, Specifically, the ICE occurs when pruning a checker_path for a diagnostic, when attempting to maintain which expression is of interest through such a call. The root cause is an assumption that there were enough arguments at the callsite, within callgraph_superedge's methods for mapping expressions between callee and caller. This patch adds checks for this to the relevant methods, fixing the ICE. gcc/analyzer/ChangeLog: PR analyzer/93375 * supergraph.cc (callgraph_superedge::get_arg_for_parm): Fail gracefully is the number of parameters at the callee exceeds the number of arguments at the call stmt. (callgraph_superedge::get_parm_for_arg): Likewise. gcc/testsuite/ChangeLog: PR analyzer/93375 * gcc.dg/analyzer/pr93375.c: New test.
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