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riscv-gcc-1
Commit 9f6ef043 by Richard Henderson Committed by Richard Henderson
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h8300.c (h8300_trampoline_init): New. 

	* config/h8300/h8300.c (h8300_trampoline_init): New.
	(TARGET_TRAMPOLINE_INIT): New.
	* config/h8300/h8300.h (INITIALIZE_TRAMPOLINE): Move code
	to h8300_trampoline_init and adjust for hook parameters.

From-SVN: r151993
parent e9d5fdb2
Showing with 58 additions and 49 deletions
gcc/ChangeLog
......@@ -103,6 +103,11 @@
* config/frv/frv.h (INITIALIZE_TRAMPOLINE): Remove.
* config/frv/frv-protos.h (frv_initialize_trampoline): Remove.
* config/h8300/h8300.c (h8300_trampoline_init): New.
(TARGET_TRAMPOLINE_INIT): New.
* config/h8300/h8300.h (INITIALIZE_TRAMPOLINE): Move code
to h8300_trampoline_init and adjust for hook parameters.
2009-09-22 Jakub Jelinek <jakub@redhat.com>
* config/rs6000/rs6000.c (bdesc_2arg): Fix CODE_FOR_vector_gt* codes
......
gcc/config/h8300/h8300.c
......@@ -5773,6 +5773,56 @@ h8300_return_in_memory (const_tree type, const_tree fntype ATTRIBUTE_UNUSED)
|| GET_MODE_SIZE (TYPE_MODE (type)) > (TARGET_H8300 ? 4 : 8));
}
/* We emit the entire trampoline here. Depending on the pointer size,
we use a different trampoline.
Pmode == HImode
vvvv context
1 0000 7903xxxx mov.w #0x1234,r3
2 0004 5A00xxxx jmp @0x1234
^^^^ function
Pmode == SImode
vvvvvvvv context
2 0000 7A03xxxxxxxx mov.l #0x12345678,er3
3 0006 5Axxxxxx jmp @0x123456
^^^^^^ function
*/
static void
h8300_trampoline_init (rtx m_tramp, tree fndecl, rtx cxt)
{
rtx fnaddr = XEXP (DECL_RTL (fndecl), 0);
rtx mem;
if (Pmode == HImode)
{
mem = adjust_address (m_tramp, HImode, 0);
emit_move_insn (mem, GEN_INT (0x7903));
mem = adjust_address (m_tramp, Pmode, 2);
emit_move_insn (mem, cxt);
mem = adjust_address (m_tramp, HImode, 4);
emit_move_insn (mem, GEN_INT (0x5a00));
mem = adjust_address (m_tramp, Pmode, 6);
emit_move_insn (mem, fnaddr);
}
else
{
rtx tem;
mem = adjust_address (m_tramp, HImode, 0);
emit_move_insn (mem, GEN_INT (0x7a03));
mem = adjust_address (m_tramp, Pmode, 2);
emit_move_insn (mem, cxt);
tem = copy_to_reg (fnaddr);
emit_insn (gen_andsi3 (tem, tem, GEN_INT (0x00ffffff)));
emit_insn (gen_iorsi3 (tem, tem, GEN_INT (0x5a000000)));
mem = adjust_address (m_tramp, SImode, 6);
emit_move_insn (mem, tem);
}
}
/* Initialize the GCC target structure. */
#undef TARGET_ATTRIBUTE_TABLE
#define TARGET_ATTRIBUTE_TABLE h8300_attribute_table
......@@ -5818,4 +5868,7 @@ h8300_return_in_memory (const_tree type, const_tree fntype ATTRIBUTE_UNUSED)
#undef TARGET_CAN_ELIMINATE
#define TARGET_CAN_ELIMINATE h8300_can_eliminate
#undef TARGET_TRAMPOLINE_INIT
#define TARGET_TRAMPOLINE_INIT h8300_trampoline_init
struct gcc_target targetm = TARGET_INITIALIZER;
gcc/config/h8300/h8300.h
......@@ -672,58 +672,9 @@ struct cum_arg
#define EXIT_IGNORE_STACK 0
/* We emit the entire trampoline with INITIALIZE_TRAMPOLINE.
Depending on the pointer size, we use a different trampoline.
Pmode == HImode
vvvv context
1 0000 7903xxxx mov.w #0x1234,r3
2 0004 5A00xxxx jmp @0x1234
^^^^ function
Pmode == SImode
vvvvvvvv context
2 0000 7A03xxxxxxxx mov.l #0x12345678,er3
3 0006 5Axxxxxx jmp @0x123456
^^^^^^ function
*/
/* Length in units of the trampoline for entering a nested function. */
#define TRAMPOLINE_SIZE ((Pmode == HImode) ? 8 : 12)
/* Emit RTL insns to build a trampoline.
FNADDR is an RTX for the address of the function's pure code.
CXT is an RTX for the static chain value for the function. */
#define INITIALIZE_TRAMPOLINE(TRAMP, FNADDR, CXT) \
do \
{ \
if (Pmode == HImode) \
{ \
emit_move_insn (gen_rtx_MEM (HImode, (TRAMP)), GEN_INT (0x7903)); \
emit_move_insn (gen_rtx_MEM (Pmode, plus_constant ((TRAMP), 2)), \
(CXT)); \
emit_move_insn (gen_rtx_MEM (Pmode, plus_constant ((TRAMP), 4)), \
GEN_INT (0x5a00)); \
emit_move_insn (gen_rtx_MEM (Pmode, plus_constant ((TRAMP), 6)), \
(FNADDR)); \
} \
else \
{ \
rtx tem = gen_reg_rtx (Pmode); \
\
emit_move_insn (gen_rtx_MEM (HImode, (TRAMP)), GEN_INT (0x7a03)); \
emit_move_insn (gen_rtx_MEM (Pmode, plus_constant ((TRAMP), 2)), \
(CXT)); \
emit_move_insn (tem, (FNADDR)); \
emit_insn (gen_andsi3 (tem, tem, GEN_INT (0x00ffffff))); \
emit_insn (gen_iorsi3 (tem, tem, GEN_INT (0x5a000000))); \
emit_move_insn (gen_rtx_MEM (Pmode, plus_constant ((TRAMP), 6)), \
tem); \
} \
} \
while (0)
/* Addressing modes, and classification of registers for them. */
......
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