Segmentation fault when commenting a tcgv_i64_expr_num

[carolynsala585]

As far as I know, if I comment the lines 4-5,

1. static inline void tcg_gen_mov_i64(TCGv_i64 ret, TCGv_i64 arg)
2. {
3.     if (ret != arg) {
4.         tcg_gen_op2_i64(INDEX_op_mov_i64, tcgv_i64_expr_num(ret),
5.                         tcgv_i64_expr_num(arg));
6.         tcg_gen_op2_i64(INDEX_op_mov_i64, ret, arg);
7.     }
8. }

the Qemu shouldn't crash, but I would get the wrong result from symqemu instead. but I got the segmentation fault message :

echo test | x86_64-linux-user/symqemu-x86_64 ./a.out 
This is SymCC running with the QSYM backend
/........./symqemu/tcg/tcg.c:3312: tcg fatal error
qemu: uncaught target signal 11 (Segmentation fault) - core dumped
[1]    91043 done                              echo test | 
       91044 segmentation fault (core dumped)  x86_64-linux-user/symqemu-x86_64 ./a.out

Would appreciate if you could provide me with some guidance on how I can enable/disable some parts of the TCG generation in Symqemu.

[aurelf]

Thanks for your interest, and for your question. Sorry for the late response.

Not very clear what you want to do. I think here you are removing all the generated code, so the resulting binary is invalid.
If you are still interested in this problem, please reopen the bug with a minimal test case. Ideally with asm output of what is generated and what you would like to achieve in comparison. That would help to understand.