https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90975
Bug ID: 90975
Summary: A suspicious code in optabs.c since r177852
Product: gcc
Version: 10.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: rtl-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: marxin at gcc dot gnu.org
CC: rsandifo at gcc dot gnu.org
Target Milestone: ---
Reported by clang-static-analyzer:
$ cat -n gcc/optabs.c | less
...
2093 /* If we are optimizing, force expensive constants into a register.
*/
2094 xop0 = avoid_expensive_constant (mode0, binoptab, 0, xop0,
unsignedp);
2095 xop1 = avoid_expensive_constant (mode1, binoptab, 1, xop1,
unsignedp);
2096
2097 create_fixed_operand (&ops[0], targ0);
2098 create_convert_operand_from (&ops[1], op0, mode, unsignedp);
2099 create_convert_operand_from (&ops[2], op1, mode, unsignedp);
2100 create_fixed_operand (&ops[3], targ1);
2101 if (maybe_expand_insn (icode, 4, ops))
2102 return 1;
2103 delete_insns_since (last);
2104 }
...
Do I see correctly that xop0 and xop1 are unused?
