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The order of evaluation of function arguments is unspecified in C++. The function object_sizes_set_temp called object_sizes_set with two calls to make_ssa_name() as arguments. Since make_ssa_name() has the side effect of incrementing the global SSA version counter, different architectures of the same compiler evaluated these calls in different orders. This resulted in non-deterministic SSA version numbering between x86_64 and aarch64 hosts during cross-compilation, leading to divergent object files. Sequencing the calls into separate statements ensures deterministic evaluation order. 2026-01-06 Jakub Jelinek <jakub@redhat.com> Marco Falke <falke.marco@gmail.com> PR tree-optimization/123351 * tree-object-size.cc (object_sizes_set_temp): Separate calls to make_ssa_name to ensure deterministic execution order.
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