https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99127
--- Comment #5 from Kurt Miller <kurt at intricatesoftware dot com> --- (In reply to Jakub Jelinek from comment #4) > So, do you get the ICE with > int c_pow_r_1, c_pow_r_0, c_pow_phase; > > void > c_pow() { > _Complex double r = __builtin_cexpi(c_pow_phase); > c_pow_r_0 = __real__ r; > c_pow_r_1 = __imag__ r; > } > too? I made the following change to the 8.4.0 port: Index: gcc/tree-ssa-math-opts.c --- gcc/tree-ssa-math-opts.c.orig +++ gcc/tree-ssa-math-opts.c @@ -1922,7 +1922,11 @@ class pass_cse_sincos : public gimple_opt_pass (public { /* We no longer require either sincos or cexp, since powi expansion piggybacks on this pass. */ +#if defined(__hppa__) + return false; +#else return optimize; +#endif } virtual unsigned int execute (function *); I know this is not correct for cross compiling but I'm building native on hppa. That change fixed the python builds but does not fix the reduced test case above. apoc$ egcc -c -O1 -o hppatest.o hppatest.c apoc$ apoc$ egcc -c -O1 -o pr99127.o pr99127.i during RTL pass: expand pr99127.i: In function 'c_pow': pr99127.i:5:23: internal compiler error: in expand_expr_addr_expr_1, at expr.c:8026 _Complex double r = __builtin_cexpi(c_pow_phase); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ libbacktrace could not find executable to open Please submit a full bug report, with preprocessed source if appropriate. See <https://gcc.gnu.org/bugs/> for instructions.