* config/fr30/fr30.c (TARGET_ASM_TRAMPOLINE_TEMPLATE,

	TARGET_TRAMPOLINE_INIT, fr30_asm_trampoline_template,
	fr30_trampoline_init): New.
	* config/fr30/fr30.h (TRAMPOLINE_TEMPLATE): Move code to
	fr30_asm_trampoline_template.
	(INITIALIZE_TRAMPOLINE): Move code to fr30_trampoline_init;
	adjust for target hook parameters.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@151991 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 51 insertions, 0 deletions

diff --git a/gcc/config/fr30/fr30.c b/gcc/config/fr30/fr30.c
index 431af8f63f9..faa637cddec 100644
--- a/gcc/config/fr30/fr30.c
+++ b/gcc/config/fr30/fr30.c
@@ -121,6 +121,8 @@ static int fr30_arg_partial_bytes (CUMULATIVE_ARGS *, enum machine_mode,
 				   tree, bool);
 static bool fr30_frame_pointer_required (void);
 static bool fr30_can_eliminate (const int, const int);
+static void fr30_asm_trampoline_template (FILE *);
+static void fr30_trampoline_init (rtx, tree, rtx);
 
 #define FRAME_POINTER_MASK 	(1 << (FRAME_POINTER_REGNUM))
 #define RETURN_POINTER_MASK 	(1 << (RETURN_POINTER_REGNUM))
@@ -165,6 +167,11 @@ static bool fr30_can_eliminate (const int, const int);
 #undef TARGET_CAN_ELIMINATE
 #define TARGET_CAN_ELIMINATE fr30_can_eliminate
 
+#undef TARGET_ASM_TRAMPOLINE_TEMPLATE
+#define TARGET_ASM_TRAMPOLINE_TEMPLATE fr30_asm_trampoline_template
+#undef TARGET_TRAMPOLINE_INIT
+#define TARGET_TRAMPOLINE_INIT fr30_trampoline_init
+
 struct gcc_target targetm = TARGET_INITIALIZER;
 
 
@@ -924,6 +931,50 @@ fr30_frame_pointer_required (void)
 }
 
 /*}}}*/
+/*{{{  Trampoline Output Routines  */
+
+/* Implement TARGET_ASM_TRAMPOLINE_TEMPLATE.
+   On the FR30, the trampoline is:
+
+   nop
+   ldi:32 STATIC, r12
+   nop
+   ldi:32 FUNCTION, r0
+   jmp    @r0
+
+   The no-ops are to guarantee that the static chain and final
+   target are 32 bit aligned within the trampoline.  That allows us to
+   initialize those locations with simple SImode stores.   The alternative
+   would be to use HImode stores.  */
+   
+static void
+fr30_asm_trampoline_template (FILE *f)
+{
+  fprintf (f, "\tnop\n");
+  fprintf (f, "\tldi:32\t#0, %s\n", reg_names [STATIC_CHAIN_REGNUM]);
+  fprintf (f, "\tnop\n");
+  fprintf (f, "\tldi:32\t#0, %s\n", reg_names [COMPILER_SCRATCH_REGISTER]);
+  fprintf (f, "\tjmp\t@%s\n", reg_names [COMPILER_SCRATCH_REGISTER]);
+}
+
+/* Implement TARGET_TRAMPOLINE_INIT.  */
+
+static void
+fr30_trampoline_init (rtx m_tramp, tree fndecl, rtx chain_value)
+{
+  rtx fnaddr = XEXP (DECL_RTL (fndecl), 0);
+  rtx mem;
+
+  emit_block_move (m_tramp, assemble_trampoline_template (),
+		   GEN_INT (TRAMPOLINE_SIZE), BLOCK_OP_NORMAL);
+
+  mem = adjust_address (m_tramp, SImode, 4);
+  emit_move_insn (mem, chain_value);
+  mem = adjust_address (m_tramp, SImode, 12);
+  emit_move_insn (mem, fnaddr);
+}
+
+/*}}}*/
 /* Local Variables: */
 /* folded-file: t   */
 /* End:		    */