* target.def (conditional_register_usage): Define.

	* reginfo.c (init_reg_sets_1): Call
	targetm.conditional_register_usage.
	* system.h (CONDITIONAL_REGISTER_USAGE): Poison.
	* doc/tm.texi.in (CONDITIONAL_REGISTER_USAGE): Adjust language
	for making it a hook.
	* doc/tm.texi: Regenerate.
	* config/alpha/alpha.h (CONDITIONAL_REGISTER_USAGE): Move logic...
	* config/alpha/alpha.c (alpha_conditional_register_usage): ...here.
	New function.
	(TARGET_CONDITIONAL_REGISTER_USAGE): Define.
	* config/arc/arc.h (CONDITIONAL_REGISTER_USAGE): Move logic...
	* config/arc/arc.c (arc_conditional_register_usage): ...here.
	New function.
	(TARGET_CONDITIONAL_REGISTER_USAGE): Define.
	* config/arm/arm.h (CONDITIONAL_REGISTER_USAGE): Move logic...
	* config/arm/arm.c (arm_conditional_register_usage): ...here.
	New function.
	(TARGET_CONDITIONAL_REGISTER_USAGE): Define.
	* config/bfin/bfin.h (CONDITIONAL_REGISTER_USAGE): Delete.
	* config/bfin/bfin-protos.h (conditional_register_usage): Delete.
	* config/bfin/bfin.c (conditional_register_usage): Move code into...
	(bfin_conditional_register_usage): ...here.  New function.
	(TARGET_CONDITIONAL_REGISTER_USAGE): Define.
	* config/cris/cris.h (CONDITIONAL_REGISTER_USAGE): Delete.
	* config/cris/cris-protos.h (cris_conditional_register_usage): Delete.
	* config/cris/cris.c (cris_conditional_register_usage): Make static.
	(TARGET_CONDITIONAL_REGISTER_USAGE): Define.
	* config/fr30/fr30.h (FIXED_REGISTERS): Adjust comment.
	* config/frv/frv.h (CONDITIONAL_REGISTER_USAGE): Delete.
	* config/frv/frv-protos.h (frv_conditional_register_usage): Delete.
	* config/frv/frv.c (frv_conditional_register_usage): Make static.
	(TARGET_CONDITIONAL_REGISTER_USAGE): Define.
	* config/h8300/h8300.h (CONDITIONAL_REGISTER_USAGE): Move logic...
	* config/h8300/h8300.c (h8300_conditional_register_usage): ...here.
	New function.
	(TARGET_CONDITIONAL_REGISTER_USAGE): Define.
	* config/i386/i386.h (CONDITIONAL_REGISTER_USAGE): Delete.
	* config/i386/i386-protos.h (ix86_conditional_register_usage): Delete.
	* config/i386/i386.c (ix86_conditional_register_usage): Make static.
	(TARGET_CONDITIONAL_REGISTER_USAGE): Define.
	* config/m32c/m32c.h (CONDITIONAL_REGISTER_USAGE): Delete.
	* config/m32c/m32c-protos.h (m32c_conditional_register_usage): Delete.
	* config/m32c/m32c.c (m32c_conditional_register_usage): Make static.
	(TARGET_CONDITIONAL_REGISTER_USAGE): Define.
	* config/m32r/m32r.h (CONDITIONAL_REGISTER_USAGE): Move logic...
	* config/m32r/m32r.c (m32r_conditional_register_usage): ...here.
	New function.
	(TARGET_CONDITIONAL_REGISTER_USAGE): Define.
	* config/m68hc11/m68hc11.h (CONDITIONAL_REGISTER_USAGE): Delete.
	* config/m68hc11/m68hc11-protos.h (m68hc11_conditional_register_usage):
	Delete.
	* config/m68hc11/m68hc11.c (m68hc11_conditional_register_usage): Make
	static.
	(TARGET_CONDITIONAL_REGISTER_USAGE): Define.
	* config/mep/mep.h (CONDITIONAL_REGISTER_USAGE): Delete.
	* config/mep/mep-protos.h (mep_conditional_register_usage): Delete.
	* config/mep/mep.c (mep_conditional_register_usage): Make static.
	(TARGET_CONDITIONAL_REGISTER_USAGE): Define.
	* config/mips/mips.h (CONDITIONAL_REGISTER_USAGE): Delete.
	* config/mips/mips-protos.h (mips_conditional_register_usage): Delete.
	* config/mips/mips.c (mips_conditional_register_usage): Make static.
	(TARGET_CONDITIONAL_REGISTER_USAGE): Define.
	* config/mmix/mmix.h (CONDITIONAL_REGISTER_USAGE): Delete.
	* config/mmix/mmix-protos.h (mmix_conditional_register_usage): Delete.
	* config/mmix/mmix.c (mmix_conditional_register_usage): Make static.
	(TARGET_CONDITIONAL_REGISTER_USAGE): Define.
	* config/mn10300/mn10300.h (CONDITIONAL_REGISTER_USAGE): Move logic...
	* config/mn10300/mn10300.c (mn10300_conditional_register_usage):
	...here.  New function.
	(TARGET_CONDITIONAL_REGISTER_USAGE): Define.
	* config/pa/pa32-regs.h (CONDITIONAL_REGISTER_USAGE): Move logic...
	* config/pa/pa64-regs.h (CONDITIONAL_REGISTER_USAGE): ...with this...
	* config/pa/pa.c (pa_conditional_register_usage): ...here.
	New function.
	(TARGET_CONDITIONAL_REGISTER_USAGE): Define.
	* config/pdp11/pdp11.h (CONDITIONAL_REGISTER_USAGE): Move logic...
	* config/pdp11/pdp11.c (pdp11_conditional_register_usage): ...here.
	New function.
	(TARGET_CONDITIONAL_REGISTER_USAGE): Define.
	* config/rs6000/rs6000.h (CONDITIONAL_REGISTER_USAGE): Delete.
	* config/rs6000/rs6000-protos.h (rs6000_conditional_register_usage):
	Delete.
	* config/rs6000/rs6000.c (rs6000_conditional_register_usage): Make
	static.
	(TARGET_CONDITIONAL_REGISTER_USAGE): Define.
	* config/rx/rx.h (CONDITIONAL_REGISTER_USAGE): Delete.
	* config/rx/rx-protos.h (rx_conditional_register_usage): Delete.
	* config/rx/rx.c (rx_conditional_register_usage): Make static.
	(TARGET_CONDITIONAL_REGISTER_USAGE): Define.
	* config/s390/s390.h (CONDITIONAL_REGISTER_USAGE): Delete.
	* config/s390/s390-protos.h (s390_conditional_register_usage): Delete.
	* config/s390/s390.c (s390_conditional_register_usage): Make static.
	(TARGET_CONDITIONAL_REGISTER_USAGE): Define.
	* config/score/score.h (CONDITIONAL_REGISTER_USAGE): Move logic...
	* config/score/score.c (score_conditional_register_usage): ...here.
	New function.
	(TARGET_CONDITIONAL_REGISTER_USAGE): Define.
	* config/sh/sh.h (CONDITIONAL_REGISTER_USAGE): Move logic...
	* config/sh/sh.c (sh_conditional_register_usage): ...here.
	New function.
	(TARGET_CONDITIONAL_REGISTER_USAGE): Define.
	* config/sparc/sparc.h (CONDITIONAL_REGISTER_USAGE): Move logic...
	* config/sparc/sparc.c (sparc_conditional_register_usage): ...here.
	New function.
	(TARGET_CONDITIONAL_REGISTER_USAGE): Define.
	* config/spu/spu.h (CONDITIONAL_REGISTER_USAGE): Delete.
	* config/spu/spu-protos.h (spu_conditional_register_usage): Delete.
	* config/spu/spu.c (spu_conditional_register_usage): Make static.
	(TARGET_CONDITIONAL_REGISTER_USAGE): Define.
	* config/v850/v850.h (CONDITIONAL_REGISTER_USAGE): Move logic...
	* config/v850/v850.c (v850_conditional_register_usage): ...here.
	New function.
	(TARGET_CONDITIONAL_REGISTER_USAGE): Define.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@167020 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 52 insertions, 0 deletions

diff --git a/gcc/config/sh/sh.c b/gcc/config/sh/sh.c
index 9d8bb536c4f..7b87c962140 100644
--- a/gcc/config/sh/sh.c
+++ b/gcc/config/sh/sh.c
@@ -298,6 +298,7 @@ static void sh_encode_section_info (tree, rtx, int);
 static int sh2a_function_vector_p (tree);
 static void sh_trampoline_init (rtx, tree, rtx);
 static rtx sh_trampoline_adjust_address (rtx);
+static void sh_conditional_register_usage (void);
 
 static const struct attribute_spec sh_attribute_table[] =
 {
@@ -588,6 +589,9 @@ static const struct default_options sh_option_optimization_table[] =
 #undef TARGET_SECONDARY_RELOAD
 #define TARGET_SECONDARY_RELOAD sh_secondary_reload
 
+#undef TARGET_CONDITIONAL_REGISTER_USAGE
+#define TARGET_CONDITIONAL_REGISTER_USAGE sh_conditional_register_usage
+
 #undef TARGET_LEGITIMATE_ADDRESS_P
 #define TARGET_LEGITIMATE_ADDRESS_P	sh_legitimate_address_p
 
@@ -12415,6 +12419,54 @@ sh_secondary_reload (bool in_p, rtx x, reg_class_t rclass_i,
   return NO_REGS;
 }
 
+static void
+sh_conditional_register_usage (void)
+{
+  int regno;
+  for (regno = 0; regno < FIRST_PSEUDO_REGISTER; regno ++)
+    if (! VALID_REGISTER_P (regno))
+      fixed_regs[regno] = call_used_regs[regno] = 1;
+  /* R8 and R9 are call-clobbered on SH5, but not on earlier SH ABIs.  */
+  if (TARGET_SH5)
+    {
+      call_used_regs[FIRST_GENERAL_REG + 8]
+	= call_used_regs[FIRST_GENERAL_REG + 9] = 1;
+      call_really_used_regs[FIRST_GENERAL_REG + 8]
+	= call_really_used_regs[FIRST_GENERAL_REG + 9] = 1;
+    }
+  if (TARGET_SHMEDIA)
+    {
+      regno_reg_class[FIRST_GENERAL_REG] = GENERAL_REGS;
+      CLEAR_HARD_REG_SET (reg_class_contents[FP0_REGS]);
+      regno_reg_class[FIRST_FP_REG] = FP_REGS;
+    }
+  if (flag_pic)
+    {
+      fixed_regs[PIC_OFFSET_TABLE_REGNUM] = 1;
+      call_used_regs[PIC_OFFSET_TABLE_REGNUM] = 1;
+    }
+  /* Renesas saves and restores mac registers on call.  */
+  if (TARGET_HITACHI && ! TARGET_NOMACSAVE)
+    {
+      call_really_used_regs[MACH_REG] = 0;
+      call_really_used_regs[MACL_REG] = 0;
+    }
+  for (regno = FIRST_FP_REG + (TARGET_LITTLE_ENDIAN != 0);
+       regno <= LAST_FP_REG; regno += 2)
+    SET_HARD_REG_BIT (reg_class_contents[DF_HI_REGS], regno);
+  if (TARGET_SHMEDIA)
+    {
+      for (regno = FIRST_TARGET_REG; regno <= LAST_TARGET_REG; regno ++)
+	if (! fixed_regs[regno] && call_really_used_regs[regno])
+	  SET_HARD_REG_BIT (reg_class_contents[SIBCALL_REGS], regno);
+    }
+  else
+    for (regno = FIRST_GENERAL_REG; regno <= LAST_GENERAL_REG; regno++)
+      if (! fixed_regs[regno] && call_really_used_regs[regno])
+	SET_HARD_REG_BIT (reg_class_contents[SIBCALL_REGS], regno);
+}
+
+
 enum sh_divide_strategy_e sh_div_strategy = SH_DIV_STRATEGY_DEFAULT;
 
 #include "gt-sh.h"