old_insns_match_p just tests whether two instructions are
similar enough to merge. With insn_callee_abi it makes more
sense to compare the ABIs directly.
2019-09-30 Richard Sandiford <richard.sandiford@arm.com>
gcc/
* cfgcleanup.c (old_insns_match_p): Compare the ABIs of calls
instead of the call-clobbered sets.
From-SVN: r276314
2019-09-30 Richard Sandiford <richard.sandiford@arm.com>
+ * cfgcleanup.c (old_insns_match_p): Compare the ABIs of calls
+ instead of the call-clobbered sets.
+
+2019-09-30 Richard Sandiford <richard.sandiford@arm.com>
+
* caller-save.c (setup_save_areas): Remove redundant |s of
fixed_reg_set.
(save_call_clobbered_regs): Likewise. Use the call ABI rather
}
}
- HARD_REG_SET i1_used = insn_callee_abi (i1).full_reg_clobbers ();
- HARD_REG_SET i2_used = insn_callee_abi (i2).full_reg_clobbers ();
- /* ??? This preserves traditional behavior; it might not be needed. */
- i1_used |= fixed_reg_set;
- i2_used |= fixed_reg_set;
-
- if (i1_used != i2_used)
+ if (insn_callee_abi (i1) != insn_callee_abi (i2))
return dir_none;
}