https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90873
--- Comment #8 from H.J. Lu <hjl.tools at gmail dot com> --- (In reply to Christophe Lyon from comment #7) > git bisect tells me that this commit (r272273) causes a regression on > arm-linux-gnueabihf > > FAIL: ext/random/normal_mv_distribution/operators/serialize.cc (test for > excess errors) > > > /libstdc++-v3/testsuite/ext/random/normal_mv_distribution/operators/ > serialize.cc:38: internal compiler error: tree check: expected > target_mem_ref, have var_decl in indirect_ref_may_alias_decl_p, at > tree-ssa-alias.c:1399 > 0x5d5c59 tree_check_failed(tree_node const*, char const*, int, char const*, > ...) > /gcc/tree.c:9899 > 0xf369f8 tree_check(tree_node*, char const*, int, char const*, tree_code) > /gcc/tree.h:3197 > 0xf369f8 indirect_ref_may_alias_decl_p > /gcc/tree-ssa-alias.c:1399 > 0xf36d85 refs_may_alias_p_2 > /gcc/tree-ssa-alias.c:1689 > 0xf36d85 refs_may_alias_p_1(ao_ref*, ao_ref*, bool) > /gcc/tree-ssa-alias.c:1710 > 0x923c38 rtx_refs_may_alias_p > /gcc/alias.c:368 > 0x928cb6 true_dependence_1 > /gcc/alias.c:2976 > 0xb1ca07 compute_transp(rtx_def const*, int, simple_bitmap_def**, > bitmap_head*, bitmap_head*, vec<modify_pair, va_heap, vl_ptr>*) > /gcc/gcse-common.c:175 > 0xb16e9a compute_local_properties > /gcc/gcse.c:699 > 0xb1a8e4 compute_pre_data > /gcc/gcse.c:1866 > 0xb1a8e4 one_pre_gcse_pass > /gcc/gcse.c:2616 > 0xb1a8e4 execute_rtl_pre > /gcc/gcse.c:4024 > 0xb1a8e4 execute > /gcc/gcse.c:4068 > Please submit a full bug report, This may be related to PR 90896.