Pass an ABI identifier to hard_regno_call_part_clobbered

This patch replaces the rtx_insn argument to
targetm.hard_regno_call_part_clobbered with an ABI identifier, since
call insns are now just one possible way of getting an ABI handle.
This in turn allows predefined_function_abi::initialize to do the
right thing for non-default ABIs.

The horrible ?: in need_for_call_save_p goes away in a later patch,
with the series as a whole removing most direct calls to the hook in
favour of function_abi operations.

2019-09-30  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
	* target.def (hard_regno_call_part_clobbered): Take an ABI
	identifier instead of an rtx_insn.
	* doc/tm.texi: Regenerate.
	* hooks.h (hook_bool_insn_uint_mode_false): Delete.
	(hook_bool_uint_uint_mode_false): New function.
	* hooks.c (hook_bool_insn_uint_mode_false): Delete.
	(hook_bool_uint_uint_mode_false): New function.
	* config/aarch64/aarch64.c (aarch64_hard_regno_call_part_clobbered):
	Take an ABI identifier instead of an rtx_insn.
	* config/avr/avr.c (avr_hard_regno_call_part_clobbered): Likewise.
	* config/i386/i386.c (ix86_hard_regno_call_part_clobbered): Likewise.
	* config/mips/mips.c (mips_hard_regno_call_part_clobbered): Likewise.
	* config/pru/pru.c (pru_hard_regno_call_part_clobbered): Likewise.
	* config/rs6000/rs6000.c (rs6000_hard_regno_call_part_clobbered):
	Likewise.
	* config/s390/s390.c (s390_hard_regno_call_part_clobbered): Likewise.
	* cselib.c: Include function-abi.h.
	(cselib_process_insn): Update call to
	targetm.hard_regno_call_part_clobbered, using insn_callee_abi
	to get the appropriate ABI identifier.
	* function-abi.cc (predefined_function_abi::initialize): Update call
	to targetm.hard_regno_call_part_clobbered.
	* ira-conflicts.c (ira_build_conflicts): Likewise.
	* ira-costs.c (ira_tune_allocno_costs): Likewise.
	* lra-constraints.c: Include function-abi.h.
	(need_for_call_save_p): Update call to
	targetm.hard_regno_call_part_clobbered, using insn_callee_abi
	to get the appropriate ABI identifier.
	* lra-lives.c (check_pseudos_live_through_calls): Likewise.
	* regcprop.c (copyprop_hardreg_forward_1): Update call
	to targetm.hard_regno_call_part_clobbered.
	* reginfo.c (choose_hard_reg_mode): Likewise.
	* regrename.c (check_new_reg_p): Likewise.
	* reload.c (find_equiv_reg): Likewise.
	* reload1.c (emit_reload_insns): Likewise.
	* sched-deps.c: Include function-abi.h.
	(deps_analyze_insn): Update call to
	targetm.hard_regno_call_part_clobbered, using insn_callee_abi
	to get the appropriate ABI identifier.
	* sel-sched.c (init_regs_for_mode, mark_unavailable_hard_regs): Update
	call to targetm.hard_regno_call_part_clobbered.
	* targhooks.c (default_dwarf_frame_reg_mode): Likewise.

From-SVN: r276311

1 files changed, 4 insertions, 4 deletions

diff --git a/gcc/function-abi.cc b/gcc/function-abi.cc
index e2c35b6a274..1d1ac9a2589 100644
--- a/gcc/function-abi.cc
+++ b/gcc/function-abi.cc
@@ -50,7 +50,7 @@ predefined_function_abi::initialize (unsigned int id,
 
      If the ABI specifies that part of a hard register R is call-clobbered,
      we should be able to find a single-register mode M for which
-     targetm.hard_regno_call_part_clobbered (NULL, R, M) is true.
+     targetm.hard_regno_call_part_clobbered (m_id, R, M) is true.
      In other words, it shouldn't be the case that R can hold all
      single-register modes across a call, but can't hold part of
      a multi-register mode.
@@ -66,7 +66,7 @@ predefined_function_abi::initialize (unsigned int id,
       for (unsigned int regno = 0; regno < FIRST_PSEUDO_REGISTER; ++regno)
 	if (targetm.hard_regno_mode_ok (regno, mode)
 	    && hard_regno_nregs (regno, mode) == 1
-	    && targetm.hard_regno_call_part_clobbered (NULL, regno, mode))
+	    && targetm.hard_regno_call_part_clobbered (m_id, regno, mode))
 	  SET_HARD_REG_BIT (m_full_and_partial_reg_clobbers, regno);
     }
 
@@ -89,7 +89,7 @@ predefined_function_abi::initialize (unsigned int id,
       for (unsigned int regno = 0; regno < FIRST_PSEUDO_REGISTER; ++regno)
 	if (targetm.hard_regno_mode_ok (regno, mode)
 	    && !overlaps_hard_reg_set_p (m_full_reg_clobbers, mode, regno)
-	    && !targetm.hard_regno_call_part_clobbered (NULL, regno, mode))
+	    && !targetm.hard_regno_call_part_clobbered (m_id, regno, mode))
 	  remove_from_hard_reg_set (&m_mode_clobbers[i], mode, regno);
     }
 
@@ -104,7 +104,7 @@ predefined_function_abi::initialize (unsigned int id,
 	for (unsigned int regno = 0; regno < FIRST_PSEUDO_REGISTER; ++regno)
 	  if (targetm.hard_regno_mode_ok (regno, mode)
 	      && !overlaps_hard_reg_set_p (m_full_reg_clobbers, mode, regno)
-	      && targetm.hard_regno_call_part_clobbered (NULL, regno, mode))
+	      && targetm.hard_regno_call_part_clobbered (m_id, regno, mode))
 	    gcc_assert (overlaps_hard_reg_set_p (all_clobbers, mode, regno)
 			&& overlaps_hard_reg_set_p (m_mode_clobbers[i],
 						    mode, regno));