![]() v850 target has an interesting insn alternative constraint 'e!r' where e denotes even general regs and e is a subset of r. We cannot just make union of exclude start hard registers for e and r and should use only exclude start hard registers of r. The following patch implements this. gcc/ChangeLog: PR rtl-optimization/104400 * lra-constraints.cc (process_alt_operands): Don't make union of this_alternative_exclude_start_hard_regs when reg class in insn alternative covers other reg classes in the same alternative. gcc/testsuite/ChangeLog: PR rtl-optimization/104400 * gcc.target/v850/pr104400.c: New. * gcc.target/v850/v850.exp: New. |
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