From 1c649ac36f1eab8094fb0a697c001e064c031ac1 Mon Sep 17 00:00:00 2001 From: Philip Herron Date: Sat, 3 Feb 2024 16:32:13 +0000 Subject: gccrs: Fix ICE accessing empty vector without check Fixes #2747 gcc/rust/ChangeLog: * typecheck/rust-tyty-subst.cc (SubstitutionRef::get_mappings_from_generic_args): fix gcc/testsuite/ChangeLog: * rust/compile/issue-2747.rs: New test. --- gcc/rust/typecheck/rust-tyty-subst.cc | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'gcc/rust') diff --git a/gcc/rust/typecheck/rust-tyty-subst.cc b/gcc/rust/typecheck/rust-tyty-subst.cc index 0a8340e..5a75356 100644 --- a/gcc/rust/typecheck/rust-tyty-subst.cc +++ b/gcc/rust/typecheck/rust-tyty-subst.cc @@ -660,7 +660,8 @@ SubstitutionRef::get_mappings_from_generic_args ( if (args.get_type_args ().size () + offs > substitutions.size ()) { rich_location r (line_table, args.get_locus ()); - r.add_range (substitutions.front ().get_param_locus ()); + if (!substitutions.empty ()) + r.add_range (substitutions.front ().get_param_locus ()); rust_error_at ( r, -- cgit v1.1