[5/9] Make more use of regs_invalidated_by_call

[Richard Sandiford]

This cleans up a couple of places in which the previous patch had:

  call_used_or_fixed_regs & ~fixed_reg_set

In that context, regs_invalidated_by_call is IMO more obvious.


2019-09-10  Richard Sandiford  <richard.sandif...@arm.com>

gcc/
        * config/frv/frv.c (frv_ifcvt_modify_tests): Use
        regs_invalidated_by_call & ~fixed_reg_set instead of
        call_used_or_fixed_regs & ~fixed_reg_set.
        * config/sh/sh.c (output_stack_adjust): Likewise.

Index: gcc/config/frv/frv.c
===================================================================
--- gcc/config/frv/frv.c        2019-09-10 17:22:44.690419243 +0100
+++ gcc/config/frv/frv.c        2019-09-10 17:22:48.550392392 +0100
@@ -5201,7 +5201,7 @@ frv_ifcvt_modify_tests (ce_if_block *ce_
      not fixed.  However, allow the ICC/ICR temporary registers to be allocated
      if we did not need to use them in reloading other registers.  */
   memset (&tmp_reg->regs, 0, sizeof (tmp_reg->regs));
-  tmp_reg->regs = call_used_or_fixed_regs &~ fixed_reg_set;
+  tmp_reg->regs = regs_invalidated_by_call & ~fixed_reg_set;
   SET_HARD_REG_BIT (tmp_reg->regs, ICC_TEMP);
   SET_HARD_REG_BIT (tmp_reg->regs, ICR_TEMP);
 
Index: gcc/config/sh/sh.c
===================================================================
--- gcc/config/sh/sh.c  2019-09-10 17:22:44.694419214 +0100
+++ gcc/config/sh/sh.c  2019-09-10 17:22:48.554392364 +0100
@@ -6707,7 +6707,7 @@ output_stack_adjust (int size, rtx reg,
            temp = -1;
          if (temp < 0 && ! current_function_interrupt && epilogue_p >= 0)
            {
-             HARD_REG_SET temps = (call_used_or_fixed_regs
+             HARD_REG_SET temps = (regs_invalidated_by_call
                                    & ~fixed_reg_set
                                    & savable_regs);
              if (epilogue_p > 0)