PR target/41246

	* target.h (struct gcc_target): Add asm_out.trampoline_template,
	calls.static_chain, calls.trampoline_init,
	calls.trampoline_adjust_address.
	* target-def.h (TARGET_ASM_TRAMPOLINE_TEMPLATE): New.
	(TARGET_STATIC_CHAIN, TARGET_TRAMPOLINE_INIT): New.
	(TARGET_TRAMPOLINE_ADJUST_ADDRESS): New.
	* builtins.c (expand_builtin_setjmp_receiver): Use
	targetm.calls.static_chain; only clobber registers.
	(expand_builtin_init_trampoline): Use targetm.calls.trampoline_init;
	set up memory attributes properly for the trampoline block.
	(expand_builtin_adjust_trampoline): Use
	targetm.calls.trampoline_adjust_address.
	* calls.c (prepare_call_address): Add fndecl argument.  Use
	targetm.calls.static_chain.
	* df-scan.c (df_need_static_chain_reg): Remove.
	(df_get_entry_block_def_set): Use targetm.calls.static_chain;
	consolodate static chain handling.
	* doc/tm.texi: Document new hooks.
	* emit-rtl.c (static_chain_rtx, static_chain_incoming_rtx): Remove.
	(init_emit_regs): Don't initialize them.
	* expr.h (prepare_call_address): Update decl.
	* final.c (profile_function): Use targetm.calls.static_chain.
	* function.c (expand_function_start): Likewise.
	* rtl.h (static_chain_rtx, static_chain_incoming_rtx): Remove.
	* stmt.c (expand_nl_goto_receiver): Use targetm.calls.static_chain;
	only clobber registers.
	* targhooks.c (default_static_chain): New.
	(default_asm_trampoline_template, default_trampoline_init): New.
	(default_trampoline_adjust_address): New.
	* targhooks.h: Declare them.
	* varasm.c (assemble_trampoline_template): Use
	targetm.asm_out.trampoline_template.  Make the memory block const
	and set its size.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@151983 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 10 insertions, 6 deletions

diff --git a/gcc/calls.c b/gcc/calls.c
index 16229cc4def..f28fb513ce2 100644
--- a/gcc/calls.c
+++ b/gcc/calls.c
@@ -166,7 +166,7 @@ static void restore_fixed_argument_area (rtx, rtx, int, int);
    CALL_INSN_FUNCTION_USAGE information.  */
 
 rtx
-prepare_call_address (rtx funexp, rtx static_chain_value,
+prepare_call_address (tree fndecl, rtx funexp, rtx static_chain_value,
 		      rtx *call_fusage, int reg_parm_seen, int sibcallp)
 {
   /* Make a valid memory address and copy constants through pseudo-regs,
@@ -187,11 +187,15 @@ prepare_call_address (rtx funexp, rtx static_chain_value,
 
   if (static_chain_value != 0)
     {
+      rtx chain;
+
+      gcc_assert (fndecl);
+      chain = targetm.calls.static_chain (fndecl, false);
       static_chain_value = convert_memory_address (Pmode, static_chain_value);
-      emit_move_insn (static_chain_rtx, static_chain_value);
 
-      if (REG_P (static_chain_rtx))
-	use_reg (call_fusage, static_chain_rtx);
+      emit_move_insn (chain, static_chain_value);
+      if (REG_P (chain))
+	use_reg (call_fusage, chain);
     }
 
   return funexp;
@@ -2807,7 +2811,7 @@ expand_call (tree exp, rtx target, int ignore)
 	}
 
       after_args = get_last_insn ();
-      funexp = prepare_call_address (funexp, static_chain_value,
+      funexp = prepare_call_address (fndecl, funexp, static_chain_value,
 				     &call_fusage, reg_parm_seen, pass == 0);
 
       load_register_parameters (args, num_actuals, &call_fusage, flags,
@@ -3735,7 +3739,7 @@ emit_library_call_value_1 (int retval, rtx orgfun, rtx value,
   else
     argnum = 0;
 
-  fun = prepare_call_address (fun, NULL, &call_fusage, 0, 0);
+  fun = prepare_call_address (NULL, fun, NULL, &call_fusage, 0, 0);
 
   /* Now load any reg parms into their regs.  */