https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91576
--- Comment #14 from Martin Liška <marxin at gcc dot gnu.org> --- Created attachment 47374 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=47374&action=edit Another test-case I see very similar error since the problematic revision: $ g++ -O3 -fPIC file*.ii -flto ... file4.ii:55:724: internal compiler error: Segmentation fault 55 | unsigned int AgreedValueLength() const ; unsigned int StaticPrivateKeyLength() const ; unsigned int StaticPublicKeyLength() const ; unsigned int EphemeralPrivateKeyLength() const ; unsigned int EphemeralPublicKeyLength() const ; bool Agree(byte *agreedValue, const byte *staticPrivateKey, const byte *ephemeralPrivateKey, const byte *staticOtherPublicKey, const byte *ephemeralOtherPublicKey, bool validateStaticOtherPublicKey=true) const { try { const DL_GroupParameters<Element> ¶ms = GetAbstractGroupParameters(); Element WW = params.DecodeElement(staticOtherPublicKey, validateStaticOtherPublicKey); Element VV = params.DecodeElement(ephemeralOtherPublicKey, true); Integer s(staticPrivateKey, StaticPrivateKeyLength()); Integer u(ephemeralPrivateKey, StaticPrivateKeyLength()); Element V = params.DecodeElement(ephemeralPrivateKey+StaticPrivateKeyLength(), false); const Integer &r = params.GetSubgroupOrder(); Integer h2 = Integer::Power2((r.BitCount()+1)/2); Integer e = ((h2+params.ConvertElementToInteger(V)%h2)*s+u) % r; Integer tt = h2 + params.ConvertElementToInteger(VV) % h2; if (COFACTOR_OPTION::ToEnum() == NO_COFACTOR_MULTIPLICTION) { Element P = params.ExponentiateElement(WW, tt); P = m_groupParameters.MultiplyElements(P, VV); Element R[2]; const Integer e2[2] = {r, e}; params.SimultaneousExponentiate(R, P, e2, 2); if (!params.IsIdentity(R[0]) || params.IsIdentity(R[1])) return false; params.EncodeElement(false, R[1], agreedValue); } else { const Integer &k = params.GetCofactor(); if (COFACTOR_OPTION::ToEnum() == COMPATIBLE_COFACTOR_MULTIPLICTION) e = ModularArithmetic(r).Divide(e, k); Element P = m_groupParameters.CascadeExponentiate(VV, k*e, WW, k*(e*tt%r)); if (params.IsIdentity(P)) return false; params.EncodeElement(false, P, agreedValue); } } catch (DL_BadElement &) { return false; } return true; } private: const DL_GroupParameters<Element> & GetAbstractGroupParameters() const ; GroupParameters m_groupParameters; }; typedef MQV_Domain<DL_GroupParameters_GFP_DefaultSafePrime> MQV; } | ^ 0xa15d2f crash_signal ../../gcc/toplev.c:328 0x7f4235b4714f ??? /usr/src/debug/glibc-2.30-1.2.x86_64/signal/../sysdeps/unix/sysv/linux/x86_64/sigaction.c:0 0xc61640 decl_assembler_name(tree_node*) ../../gcc/tree.c:707 0x825aa5 types_same_for_odr(tree_node const*, tree_node const*) ../../gcc/ipa-devirt.c:360 0x84892e ipa_polymorphic_call_context::get_dynamic_type(tree_node*, tree_node*, tree_node*, gimple*, unsigned int*) ../../gcc/ipa-polymorphic-call.c:1803 0xb89cf2 eliminate_dom_walker::eliminate_stmt(basic_block_def*, gimple_stmt_iterator*) ../../gcc/tree-ssa-sccvn.c:5758 0xb8b15d eliminate_dom_walker::before_dom_children(basic_block_def*) ../../gcc/tree-ssa-sccvn.c:5917 0xb8b15d eliminate_dom_walker::before_dom_children(basic_block_def*) ../../gcc/tree-ssa-sccvn.c:5850 0x1186db5 dom_walker::walk(basic_block_def*) ../../gcc/domwalk.c:309 0xb8494b eliminate_with_rpo_vn(bitmap_head*) ../../gcc/tree-ssa-sccvn.c:6095 0xb92502 do_rpo_vn ../../gcc/tree-ssa-sccvn.c:7240 0xb93180 execute ../../gcc/tree-ssa-sccvn.c:7322 Please submit a full bug report, with preprocessed source if appropriate. Please include the complete backtrace with any bug report. See <https://gcc.gnu.org/bugs/> for instructions. lto-wrapper: fatal error: g++ returned 1 exit status compilation terminated. /usr/bin/ld: error: lto-wrapper failed collect2: error: ld returned 1 exit status
