Internal compiler error when compiling giac-1.4.9.45 with gcc-7.2.0 #24599
Description
gcc-7.2.0 is currently distributed with Sage. Complete log is attached.
[giac-1.4.9.45] modpoly.cc: In function 'std::complex<double> giac::horner_newton(const vecteur&, const std::complex<double>&, const giac::context*)':
[giac-1.4.9.45] modpoly.cc:5035:19: internal compiler error: Aborted
[giac-1.4.9.45] complex<double> horner_newton(const vecteur & p,const std::complex<double> &x,GIAC_CONTEXT){
[giac-1.4.9.45] ^~~~~~~~~~~~~
[giac-1.4.9.45] 0xafbc6f crash_signal
[giac-1.4.9.45] ../../src/gcc/toplev.c:337
[giac-1.4.9.45] 0x7f3e0cfeedd3 mpfr_assert_fail
[giac-1.4.9.45] /home/ralf/sage/local/var/tmp/sage/build/mpfr-3.1.5.p0/src/src/mpfr-gmp.c:305
[giac-1.4.9.45] 0x7f3e0cfe59c1 mpfr_init2
[giac-1.4.9.45] /home/ralf/sage/local/var/tmp/sage/build/mpfr-3.1.5.p0/src/src/init2.c:52
[giac-1.4.9.45] 0x7f3e0d21b472 mpc_div_zero
[giac-1.4.9.45] /home/ralf/sage/local/var/tmp/sage/build/mpc-1.1.0/src/src/div.c:31
[giac-1.4.9.45] 0x7f3e0d21b472 mpc_div
[giac-1.4.9.45] /home/ralf/sage/local/var/tmp/sage/build/mpc-1.1.0/src/src/div.c:257
[giac-1.4.9.45] 0x77b6b9 do_mpc_arg2(tree_node*, tree_node*, tree_node*, int, int (*)(__mpc_struct*, __mpc_struct const*, __mpc_struct const*, int))
[giac-1.4.9.45] ../../src/gcc/builtins.c:10179
[giac-1.4.9.45] 0x8afa0a const_binop
[giac-1.4.9.45] ../../src/gcc/fold-const.c:1316
[giac-1.4.9.45] 0x8b0c5e const_binop(tree_code, tree_node*, tree_node*, tree_node*)
[giac-1.4.9.45] ../../src/gcc/fold-const.c:1565
[giac-1.4.9.45] 0xdb4962 gimple_resimplify2(gimple**, code_helper*, tree_node*, tree_node**, tree_node* (*)(tree_node*))
[giac-1.4.9.45] ../../src/gcc/gimple-match-head.c:132
[giac-1.4.9.45] 0xe384b0 gimple_simplify(gimple*, code_helper*, tree_node**, gimple**, tree_node* (*)(tree_node*), tree_node* (*)(tree_node*))
[giac-1.4.9.45] ../../src/gcc/gimple-match-head.c:642
[giac-1.4.9.45] 0x8e4306 fold_stmt_1
[giac-1.4.9.45] ../../src/gcc/gimple-fold.c:4362
[giac-1.4.9.45] 0xbdb5ff execute
[giac-1.4.9.45] ../../src/gcc/tree-ssa-forwprop.c:2391
[giac-1.4.9.45] Please submit a full bug report,
Minimal crashing example:
#include <complex>
auto inf = 1.0 / std::complex<double>();
The underlying reason is that, in #24353, the MPC upgrade did not change the .so version number but the MPFR upgrade did change the .so version number. So now GCC is linking with the old MPFR but the new MPC which is what causes the breakage...
Component: build
Author: Jeroen Demeyer
Branch/Commit: c7b0dac
Reviewer: Ralf Stephan
Issue created by migration from https://trac.sagemath.org/ticket/24599