[thirdparty/gcc.git] / libffi / src / mips / n32.S

/* -----------------------------------------------------------------------
   n32.S - Copyright (c) 1996, 1998, 2005, 2007, 2009, 2010  Red Hat, Inc.
   
   MIPS Foreign Function Interface 

   Permission is hereby granted, free of charge, to any person obtaining
   a copy of this software and associated documentation files (the
   ``Software''), to deal in the Software without restriction, including
   without limitation the rights to use, copy, modify, merge, publish,
   distribute, sublicense, and/or sell copies of the Software, and to
   permit persons to whom the Software is furnished to do so, subject to
   the following conditions:

   The above copyright notice and this permission notice shall be included
   in all copies or substantial portions of the Software.

   THE SOFTWARE IS PROVIDED ``AS IS'', WITHOUT WARRANTY OF ANY KIND,
   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
   NONINFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
   HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
   WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
   OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
   DEALINGS IN THE SOFTWARE.
   ----------------------------------------------------------------------- */

#define LIBFFI_ASM	
#include <fficonfig.h>
#include <ffi.h>

/* Only build this code if we are compiling for n32 */	

#if defined(FFI_MIPS_N32)

#define callback a0
#define bytes	 a2
#define flags	 a3
#define raddr    a4
#define fn       a5

#define SIZEOF_FRAME	( 8 * FFI_SIZEOF_ARG )

#ifdef __GNUC__
	.abicalls
#endif
	.set mips4
	.text
	.align	2
	.globl	ffi_call_N32
	.ent	ffi_call_N32
ffi_call_N32:	
.LFB3:
	.frame	$fp, SIZEOF_FRAME, ra
	.mask	0xc0000000,-FFI_SIZEOF_ARG
	.fmask	0x00000000,0

	# Prologue
	SUBU	$sp, SIZEOF_FRAME			# Frame size
.LCFI0:
	REG_S	$fp, SIZEOF_FRAME - 2*FFI_SIZEOF_ARG($sp)	# Save frame pointer
	REG_S	ra, SIZEOF_FRAME - 1*FFI_SIZEOF_ARG($sp)	# Save return address
.LCFI1:
	move	$fp, $sp
.LCFI3:
	move	t9, callback	# callback function pointer
	REG_S	bytes, 2*FFI_SIZEOF_ARG($fp) # bytes
	REG_S	flags, 3*FFI_SIZEOF_ARG($fp) # flags
	REG_S	raddr, 4*FFI_SIZEOF_ARG($fp) # raddr
	REG_S	fn,    5*FFI_SIZEOF_ARG($fp) # fn

	# Allocate at least 4 words in the argstack
	move	v0, bytes
	bge	bytes, 4 * FFI_SIZEOF_ARG, bigger	
	LI	v0, 4 * FFI_SIZEOF_ARG
	b	sixteen

	bigger:	
	ADDU	t4, v0, 2 * FFI_SIZEOF_ARG -1	# make sure it is aligned 
	and	v0, t4, -2 * FFI_SIZEOF_ARG		# to a proper boundry.

sixteen:
	SUBU	$sp, $sp, v0	# move the stack pointer to reflect the
				# arg space

	move	a0, $sp         # 4 * FFI_SIZEOF_ARG
	ADDU	a3, $fp, 3 * FFI_SIZEOF_ARG

	# Call ffi_prep_args
	jal	t9
	
	# Copy the stack pointer to t9
	move	t9, $sp
	
	# Fix the stack if there are more than 8 64bit slots worth
	# of arguments.

	# Load the number of bytes
	REG_L	t6, 2*FFI_SIZEOF_ARG($fp)

	# Is it bigger than 8 * FFI_SIZEOF_ARG?
	daddiu	t8, t6, -(8 * FFI_SIZEOF_ARG)
	bltz	t8, loadregs

	ADDU	t9, t9, t8
	
loadregs:	

	REG_L	t6, 3*FFI_SIZEOF_ARG($fp)  # load the flags word into t6.

	and	t4, t6, ((1<<FFI_FLAG_BITS)-1)
	REG_L	a0, 0*FFI_SIZEOF_ARG(t9)
	beqz	t4, arg1_next
	bne	t4, FFI_TYPE_FLOAT, arg1_doublep
	l.s	$f12, 0*FFI_SIZEOF_ARG(t9)
	b	arg1_next
arg1_doublep:	
	l.d	$f12, 0*FFI_SIZEOF_ARG(t9)
arg1_next:	
	
	SRL	t4, t6, 1*FFI_FLAG_BITS
	and	t4, ((1<<FFI_FLAG_BITS)-1)
	REG_L	a1, 1*FFI_SIZEOF_ARG(t9)
	beqz	t4, arg2_next
	bne	t4, FFI_TYPE_FLOAT, arg2_doublep
	l.s	$f13, 1*FFI_SIZEOF_ARG(t9)	
	b	arg2_next
arg2_doublep:	
	l.d	$f13, 1*FFI_SIZEOF_ARG(t9)	
arg2_next:	
	
	SRL	t4, t6, 2*FFI_FLAG_BITS
	and	t4, ((1<<FFI_FLAG_BITS)-1)
	REG_L	a2, 2*FFI_SIZEOF_ARG(t9)
	beqz	t4, arg3_next
	bne	t4, FFI_TYPE_FLOAT, arg3_doublep
	l.s	$f14, 2*FFI_SIZEOF_ARG(t9)	
	b	arg3_next
arg3_doublep:	
	l.d	$f14, 2*FFI_SIZEOF_ARG(t9)	
arg3_next:	
	
	SRL	t4, t6, 3*FFI_FLAG_BITS
	and	t4, ((1<<FFI_FLAG_BITS)-1)
	REG_L	a3, 3*FFI_SIZEOF_ARG(t9)
	beqz	t4, arg4_next
	bne	t4, FFI_TYPE_FLOAT, arg4_doublep
	l.s	$f15, 3*FFI_SIZEOF_ARG(t9)	
	b	arg4_next
arg4_doublep:	
	l.d	$f15, 3*FFI_SIZEOF_ARG(t9)	
arg4_next:	
	
	SRL	t4, t6, 4*FFI_FLAG_BITS
	and	t4, ((1<<FFI_FLAG_BITS)-1)
	REG_L	a4, 4*FFI_SIZEOF_ARG(t9)
	beqz	t4, arg5_next
	bne	t4, FFI_TYPE_FLOAT, arg5_doublep
	l.s	$f16, 4*FFI_SIZEOF_ARG(t9)	
	b	arg5_next
arg5_doublep:	
	l.d	$f16, 4*FFI_SIZEOF_ARG(t9)	
arg5_next:	
	
	SRL	t4, t6, 5*FFI_FLAG_BITS
	and	t4, ((1<<FFI_FLAG_BITS)-1)
	REG_L	a5, 5*FFI_SIZEOF_ARG(t9)
	beqz	t4, arg6_next
	bne	t4, FFI_TYPE_FLOAT, arg6_doublep
	l.s	$f17, 5*FFI_SIZEOF_ARG(t9)	
	b	arg6_next
arg6_doublep:	
	l.d	$f17, 5*FFI_SIZEOF_ARG(t9)	
arg6_next:	
	
	SRL	t4, t6, 6*FFI_FLAG_BITS
	and	t4, ((1<<FFI_FLAG_BITS)-1)
	REG_L	a6, 6*FFI_SIZEOF_ARG(t9)
	beqz	t4, arg7_next
	bne	t4, FFI_TYPE_FLOAT, arg7_doublep
	l.s	$f18, 6*FFI_SIZEOF_ARG(t9)	
	b	arg7_next
arg7_doublep:	
	l.d	$f18, 6*FFI_SIZEOF_ARG(t9)	
arg7_next:	
	
	SRL	t4, t6, 7*FFI_FLAG_BITS
	and	t4, ((1<<FFI_FLAG_BITS)-1)
	REG_L	a7, 7*FFI_SIZEOF_ARG(t9)
	beqz	t4, arg8_next
	bne	t4, FFI_TYPE_FLOAT, arg8_doublep
 	l.s	$f19, 7*FFI_SIZEOF_ARG(t9)	
	b	arg8_next
arg8_doublep:	
 	l.d	$f19, 7*FFI_SIZEOF_ARG(t9)	
arg8_next:	

callit:		
	# Load the function pointer
	REG_L	t9, 5*FFI_SIZEOF_ARG($fp)

	# If the return value pointer is NULL, assume no return value.
	REG_L	t5, 4*FFI_SIZEOF_ARG($fp)
	beqz	t5, noretval

	# Shift the return type flag over
	SRL	t6, 8*FFI_FLAG_BITS

	beq	t6, FFI_TYPE_SINT32, retint	
	bne     t6, FFI_TYPE_INT, retfloat
retint:
	jal	t9
	REG_L	t4, 4*FFI_SIZEOF_ARG($fp)
	REG_S	v0, 0(t4)
	b	epilogue

retfloat:
	bne     t6, FFI_TYPE_FLOAT, retdouble
	jal	t9
	REG_L	t4, 4*FFI_SIZEOF_ARG($fp)
	s.s	$f0, 0(t4)
	b	epilogue

retdouble:	
	bne	t6, FFI_TYPE_DOUBLE, retstruct_d
	jal	t9
	REG_L	t4, 4*FFI_SIZEOF_ARG($fp)
	s.d	$f0, 0(t4)
	b	epilogue

retstruct_d:	
	bne	t6, FFI_TYPE_STRUCT_D, retstruct_f
	jal	t9
	REG_L	t4, 4*FFI_SIZEOF_ARG($fp)
	s.d	$f0, 0(t4)
	b	epilogue
	
retstruct_f:	
	bne	t6, FFI_TYPE_STRUCT_F, retstruct_d_d
	jal	t9
	REG_L	t4, 4*FFI_SIZEOF_ARG($fp)
	s.s	$f0, 0(t4)
	b	epilogue
	
retstruct_d_d:	
	bne	t6, FFI_TYPE_STRUCT_DD, retstruct_f_f
	jal	t9
	REG_L	t4, 4*FFI_SIZEOF_ARG($fp)
	s.d	$f0, 0(t4)
	s.d	$f2, 8(t4)
	b	epilogue
	
retstruct_f_f:	
	bne	t6, FFI_TYPE_STRUCT_FF, retstruct_d_f
	jal	t9
	REG_L	t4, 4*FFI_SIZEOF_ARG($fp)
	s.s	$f0, 0(t4)
	s.s	$f2, 4(t4)
	b	epilogue
	
retstruct_d_f:	
	bne	t6, FFI_TYPE_STRUCT_DF, retstruct_f_d
	jal	t9
	REG_L	t4, 4*FFI_SIZEOF_ARG($fp)
	s.d	$f0, 0(t4)
	s.s	$f2, 8(t4)
	b	epilogue
	
retstruct_f_d:	
	bne	t6, FFI_TYPE_STRUCT_FD, retstruct_d_soft
	jal	t9
	REG_L	t4, 4*FFI_SIZEOF_ARG($fp)
	s.s	$f0, 0(t4)
	s.d	$f2, 8(t4)
	b	epilogue

retstruct_d_soft:
	bne	t6, FFI_TYPE_STRUCT_D_SOFT, retstruct_f_soft
	jal	t9
	REG_L	t4, 4*FFI_SIZEOF_ARG($fp)
	sd	v0, 0(t4)
	b	epilogue
	
retstruct_f_soft:	
	bne	t6, FFI_TYPE_STRUCT_F_SOFT, retstruct_d_d_soft
	jal	t9
	REG_L	t4, 4*FFI_SIZEOF_ARG($fp)
	sw	v0, 0(t4)
	b	epilogue
	
retstruct_d_d_soft:	
	bne	t6, FFI_TYPE_STRUCT_DD_SOFT, retstruct_f_f_soft
	jal	t9
	REG_L	t4, 4*FFI_SIZEOF_ARG($fp)
	sd	v0, 0(t4)
	sd	v1, 8(t4)
	b	epilogue
	
retstruct_f_f_soft:	
	bne	t6, FFI_TYPE_STRUCT_FF_SOFT, retstruct_d_f_soft
	jal	t9
	REG_L	t4, 4*FFI_SIZEOF_ARG($fp)
	sw	v0, 0(t4)
	sw	v1, 4(t4)
	b	epilogue
	
retstruct_d_f_soft:	
	bne	t6, FFI_TYPE_STRUCT_DF_SOFT, retstruct_f_d_soft
	jal	t9
	REG_L	t4, 4*FFI_SIZEOF_ARG($fp)
	sd	v0, 0(t4)
	sw	v1, 8(t4)
	b	epilogue
	
retstruct_f_d_soft:	
	bne	t6, FFI_TYPE_STRUCT_FD_SOFT, retstruct_small
	jal	t9
	REG_L	t4, 4*FFI_SIZEOF_ARG($fp)
	sw	v0, 0(t4)
	sd	v1, 8(t4)
	b	epilogue
	
retstruct_small:	
	bne	t6, FFI_TYPE_STRUCT_SMALL, retstruct_small2
	jal	t9
	REG_L	t4, 4*FFI_SIZEOF_ARG($fp)
	REG_S	v0, 0(t4)
	b	epilogue
	
retstruct_small2:	
	bne	t6, FFI_TYPE_STRUCT_SMALL2, retstruct
	jal	t9
	REG_L	t4, 4*FFI_SIZEOF_ARG($fp)
	REG_S	v0, 0(t4)
	REG_S	v1, 8(t4)
	b	epilogue
	
retstruct:	
noretval:	
	jal	t9
	
	# Epilogue
epilogue:	
	move	$sp, $fp	
	REG_L	$fp, SIZEOF_FRAME - 2*FFI_SIZEOF_ARG($sp) # Restore frame pointer
	REG_L	ra, SIZEOF_FRAME - 1*FFI_SIZEOF_ARG($sp)  # Restore return address
	ADDU	$sp, SIZEOF_FRAME		      # Fix stack pointer
	j	ra

.LFE3:
	.end	ffi_call_N32

/* ffi_closure_N32. Expects address of the passed-in ffi_closure in t0
   ($12). Stores any arguments passed in registers onto the stack,
   then calls ffi_closure_mips_inner_N32, which then decodes
   them.
	
	Stack layout:

	20 - Start of parameters, original sp
	19 - Called function a7 save
	18 - Called function a6 save
	17 - Called function a5 save
	16 - Called function a4 save
	15 - Called function a3 save
	14 - Called function a2 save
	13 - Called function a1 save
	12 - Called function a0 save
	11 - Called function f19
	10 - Called function f18
	 9 - Called function f17
	 8 - Called function f16
	 7 - Called function f15
         6 - Called function f14
         5 - Called function f13
         4 - Called function f12
	 3 - return value high (v1 or $f2)
	 2 - return value low (v0 or $f0)
	 1 - ra save
	 0 - gp save our sp  points here
	 */

#define SIZEOF_FRAME2	(20 * FFI_SIZEOF_ARG)
	
#define A7_OFF2		(19 * FFI_SIZEOF_ARG)
#define A6_OFF2		(18 * FFI_SIZEOF_ARG)
#define A5_OFF2		(17 * FFI_SIZEOF_ARG)
#define A4_OFF2		(16 * FFI_SIZEOF_ARG)
#define A3_OFF2		(15 * FFI_SIZEOF_ARG)
#define A2_OFF2		(14 * FFI_SIZEOF_ARG)
#define A1_OFF2		(13 * FFI_SIZEOF_ARG)
#define A0_OFF2		(12 * FFI_SIZEOF_ARG)	

#define F19_OFF2	(11 * FFI_SIZEOF_ARG)
#define F18_OFF2	(10 * FFI_SIZEOF_ARG)
#define F17_OFF2	(9  * FFI_SIZEOF_ARG)
#define F16_OFF2	(8  * FFI_SIZEOF_ARG)
#define F15_OFF2	(7  * FFI_SIZEOF_ARG)
#define F14_OFF2	(6  * FFI_SIZEOF_ARG)
#define F13_OFF2	(5  * FFI_SIZEOF_ARG)
#define F12_OFF2	(4  * FFI_SIZEOF_ARG)

#define V1_OFF2		(3  * FFI_SIZEOF_ARG)
#define V0_OFF2		(2  * FFI_SIZEOF_ARG)

#define RA_OFF2		(1  * FFI_SIZEOF_ARG)
#define GP_OFF2		(0  * FFI_SIZEOF_ARG)

	.align	2
	.globl	ffi_closure_N32
	.ent	ffi_closure_N32
ffi_closure_N32:
.LFB2:
	.frame	$sp, SIZEOF_FRAME2, ra
	.mask	0x90000000,-(SIZEOF_FRAME2 - RA_OFF2)
	.fmask	0x00000000,0
	SUBU	$sp, SIZEOF_FRAME2
.LCFI5:
	.cpsetup t9, GP_OFF2, ffi_closure_N32
	REG_S	ra, RA_OFF2($sp)	# Save return address
.LCFI6:
	# Store all possible argument registers. If there are more than
	# fit in registers, then they were stored on the stack.
	REG_S	a0, A0_OFF2($sp)
	REG_S	a1, A1_OFF2($sp)
	REG_S	a2, A2_OFF2($sp)
	REG_S	a3, A3_OFF2($sp)
	REG_S	a4, A4_OFF2($sp)
	REG_S	a5, A5_OFF2($sp)
	REG_S	a6, A6_OFF2($sp)
	REG_S	a7, A7_OFF2($sp)

	# Store all possible float/double registers.
	s.d	$f12, F12_OFF2($sp)
	s.d	$f13, F13_OFF2($sp)
	s.d	$f14, F14_OFF2($sp)
	s.d	$f15, F15_OFF2($sp)
	s.d	$f16, F16_OFF2($sp)
	s.d	$f17, F17_OFF2($sp)
	s.d	$f18, F18_OFF2($sp)
	s.d	$f19, F19_OFF2($sp)

	# Call ffi_closure_mips_inner_N32 to do the real work.
	LA	t9, ffi_closure_mips_inner_N32
	move	a0, $12	 # Pointer to the ffi_closure
	ADDU	a1, $sp, V0_OFF2
	ADDU	a2, $sp, A0_OFF2
	ADDU	a3, $sp, F12_OFF2
	jalr	t9

	# Return flags are in v0
	bne     v0, FFI_TYPE_SINT32, cls_retint
	lw	v0, V0_OFF2($sp)
	b	cls_epilogue

cls_retint:
	bne     v0, FFI_TYPE_INT, cls_retfloat
	REG_L	v0, V0_OFF2($sp)
	b	cls_epilogue

cls_retfloat:
	bne     v0, FFI_TYPE_FLOAT, cls_retdouble
	l.s	$f0, V0_OFF2($sp)
	b	cls_epilogue

cls_retdouble:	
	bne	v0, FFI_TYPE_DOUBLE, cls_retstruct_d
	l.d	$f0, V0_OFF2($sp)
	b	cls_epilogue

cls_retstruct_d:	
	bne	v0, FFI_TYPE_STRUCT_D, cls_retstruct_f
	l.d	$f0, V0_OFF2($sp)
	b	cls_epilogue
	
cls_retstruct_f:	
	bne	v0, FFI_TYPE_STRUCT_F, cls_retstruct_d_d
	l.s	$f0, V0_OFF2($sp)
	b	cls_epilogue
	
cls_retstruct_d_d:	
	bne	v0, FFI_TYPE_STRUCT_DD, cls_retstruct_f_f
	l.d	$f0, V0_OFF2($sp)
	l.d	$f2, V1_OFF2($sp)
	b	cls_epilogue
	
cls_retstruct_f_f:	
	bne	v0, FFI_TYPE_STRUCT_FF, cls_retstruct_d_f
	l.s	$f0, V0_OFF2($sp)
	l.s	$f2, V1_OFF2($sp)
	b	cls_epilogue
	
cls_retstruct_d_f:	
	bne	v0, FFI_TYPE_STRUCT_DF, cls_retstruct_f_d
	l.d	$f0, V0_OFF2($sp)
	l.s	$f2, V1_OFF2($sp)
	b	cls_epilogue
	
cls_retstruct_f_d:	
	bne	v0, FFI_TYPE_STRUCT_FD, cls_retstruct_small2
	l.s	$f0, V0_OFF2($sp)
	l.d	$f2, V1_OFF2($sp)
	b	cls_epilogue
	
cls_retstruct_small2:	
	REG_L	v0, V0_OFF2($sp)
	REG_L	v1, V1_OFF2($sp)
	
	# Epilogue
cls_epilogue:	
	REG_L	ra,  RA_OFF2($sp)	 # Restore return address
	.cpreturn
	ADDU	$sp, SIZEOF_FRAME2
	j	ra
.LFE2:	
	.end	ffi_closure_N32

#ifdef __GNUC__
        .section        .eh_frame,"aw",@progbits
.Lframe1:
        .4byte  .LECIE1-.LSCIE1		# length
.LSCIE1:
        .4byte  0x0			# CIE
        .byte   0x1			# Version 1
        .ascii  "\000"			# Augmentation
        .uleb128 0x1			# Code alignment 1
        .sleb128 -4			# Data alignment -4
        .byte   0x1f			# Return Address $31
        .byte   0xc			# DW_CFA_def_cfa
        .uleb128 0x1d			# in $sp
        .uleb128 0x0			# offset 0
        .align  EH_FRAME_ALIGN
.LECIE1:

.LSFDE1:
        .4byte  .LEFDE1-.LASFDE1	# length.
.LASFDE1:
        .4byte  .LASFDE1-.Lframe1	# CIE_pointer.
        FDE_ADDR_BYTES  .LFB3		# initial_location.
        FDE_ADDR_BYTES  .LFE3-.LFB3	# address_range.
        .byte   0x4			# DW_CFA_advance_loc4
        .4byte  .LCFI0-.LFB3		# to .LCFI0
        .byte   0xe			# DW_CFA_def_cfa_offset
        .uleb128 SIZEOF_FRAME		# adjust stack.by SIZEOF_FRAME
        .byte   0x4			# DW_CFA_advance_loc4
        .4byte  .LCFI1-.LCFI0		# to .LCFI1
        .byte   0x9e			# DW_CFA_offset of $fp
        .uleb128 2*FFI_SIZEOF_ARG/4	# 
        .byte   0x9f			# DW_CFA_offset of ra
        .uleb128 1*FFI_SIZEOF_ARG/4	# 
        .byte   0x4			# DW_CFA_advance_loc4
        .4byte  .LCFI3-.LCFI1		# to .LCFI3
        .byte   0xd			# DW_CFA_def_cfa_register
        .uleb128 0x1e			# in $fp
        .align  EH_FRAME_ALIGN
.LEFDE1:
.LSFDE3:
	.4byte	.LEFDE3-.LASFDE3	# length
.LASFDE3:
	.4byte	.LASFDE3-.Lframe1	# CIE_pointer.
	FDE_ADDR_BYTES	.LFB2		# initial_location.
	FDE_ADDR_BYTES	.LFE2-.LFB2	# address_range.
	.byte	0x4			# DW_CFA_advance_loc4
	.4byte	.LCFI5-.LFB2		# to .LCFI5
	.byte	0xe			# DW_CFA_def_cfa_offset
	.uleb128 SIZEOF_FRAME2		# adjust stack.by SIZEOF_FRAME
	.byte	0x4			# DW_CFA_advance_loc4
	.4byte	.LCFI6-.LCFI5		# to .LCFI6
	.byte	0x9c			# DW_CFA_offset of $gp ($28)
	.uleb128 (SIZEOF_FRAME2 - GP_OFF2)/4
	.byte	0x9f			# DW_CFA_offset of ra ($31)
	.uleb128 (SIZEOF_FRAME2 - RA_OFF2)/4
	.align	EH_FRAME_ALIGN
.LEFDE3:
#endif /* __GNUC__ */	
	
#endif
Commit	Line	Data
63e5e3e0	1	/* -----------------------------------------------------------------------
86d1b9d1	2	n32.S - Copyright (c) 1996, 1998, 2005, 2007, 2009, 2010 Red Hat, Inc.
63e5e3e0 AG	3
	4	MIPS Foreign Function Interface
	5
63e5e3e0 AG	6	Permission is hereby granted, free of charge, to any person obtaining
	7	a copy of this software and associated documentation files (the
	8	``Software''), to deal in the Software without restriction, including
	9	without limitation the rights to use, copy, modify, merge, publish,
	10	distribute, sublicense, and/or sell copies of the Software, and to
	11	permit persons to whom the Software is furnished to do so, subject to
	12	the following conditions:
	13
	14	The above copyright notice and this permission notice shall be included
	15	in all copies or substantial portions of the Software.
	16
5f933ef0 AH	17	THE SOFTWARE IS PROVIDED ``AS IS'', WITHOUT WARRANTY OF ANY KIND,
	18	EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
	19	MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
	20	NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
	21	HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
	22	WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
	23	OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
	24	DEALINGS IN THE SOFTWARE.
63e5e3e0 AG	25	----------------------------------------------------------------------- */
	26
	27	#define LIBFFI_ASM
1450eb7a	28	#include <fficonfig.h>
63e5e3e0 AG	29	#include <ffi.h>
	30
	31	/* Only build this code if we are compiling for n32 */
	32
	33	#if defined(FFI_MIPS_N32)
	34
	35	#define callback a0
	36	#define bytes a2
	37	#define flags a3
	38	#define raddr a4
	39	#define fn a5
	40
1450eb7a	41	#define SIZEOF_FRAME ( 8 * FFI_SIZEOF_ARG )
63e5e3e0	42
86d1b9d1	43	#ifdef __GNUC__
2572f1c6	44	.abicalls
c4205f77	45	#endif
3b21983d	46	.set mips4
63e5e3e0 AG	47	.text
	48	.align 2
	49	.globl ffi_call_N32
	50	.ent ffi_call_N32
	51	ffi_call_N32:
89d9d98a DD	52	.LFB3:
	53	.frame $fp, SIZEOF_FRAME, ra
	54	.mask 0xc0000000,-FFI_SIZEOF_ARG
	55	.fmask 0x00000000,0
63e5e3e0 AG	56
	57	# Prologue
	58	SUBU $sp, SIZEOF_FRAME # Frame size
89d9d98a	59	.LCFI0:
1450eb7a AT	60	REG_S $fp, SIZEOF_FRAME - 2*FFI_SIZEOF_ARG($sp) # Save frame pointer
1450eb7a AT	61	REG_S ra, SIZEOF_FRAME - 1*FFI_SIZEOF_ARG($sp) # Save return address
89d9d98a	62	.LCFI1:
63e5e3e0	63	move $fp, $sp
89d9d98a	64	.LCFI3:
63e5e3e0	65	move t9, callback # callback function pointer
1450eb7a AT	66	REG_S bytes, 2*FFI_SIZEOF_ARG($fp) # bytes
	67	REG_S flags, 3*FFI_SIZEOF_ARG($fp) # flags
	68	REG_S raddr, 4*FFI_SIZEOF_ARG($fp) # raddr
	69	REG_S fn, 5*FFI_SIZEOF_ARG($fp) # fn
63e5e3e0 AG	70
	71	# Allocate at least 4 words in the argstack
	72	move v0, bytes
1450eb7a AT	73	bge bytes, 4 * FFI_SIZEOF_ARG, bigger
1450eb7a AT	74	LI v0, 4 * FFI_SIZEOF_ARG
63e5e3e0 AG	75	b sixteen
	76
	77	bigger:
1450eb7a AT	78	ADDU t4, v0, 2 * FFI_SIZEOF_ARG -1 # make sure it is aligned
1450eb7a AT	79	and v0, t4, -2 * FFI_SIZEOF_ARG # to a proper boundry.
63e5e3e0 AG	80
	81	sixteen:
	82	SUBU $sp, $sp, v0 # move the stack pointer to reflect the
	83	# arg space
	84
c94ae2e4	85	move a0, $sp # 4 * FFI_SIZEOF_ARG
1450eb7a	86	ADDU a3, $fp, 3 * FFI_SIZEOF_ARG
63e5e3e0 AG	87
	88	# Call ffi_prep_args
	89	jal t9
	90
63e5e3e0 AG	91	# Copy the stack pointer to t9
	92	move t9, $sp
	93
	94	# Fix the stack if there are more than 8 64bit slots worth
	95	# of arguments.
	96
	97	# Load the number of bytes
1450eb7a	98	REG_L t6, 2*FFI_SIZEOF_ARG($fp)
63e5e3e0	99
1450eb7a	100	# Is it bigger than 8 * FFI_SIZEOF_ARG?
c94ae2e4	101	daddiu t8, t6, -(8 * FFI_SIZEOF_ARG)
63e5e3e0 AG	102	bltz t8, loadregs
63e5e3e0 AG	103
c94ae2e4	104	ADDU t9, t9, t8
63e5e3e0 AG	105
	106	loadregs:
	107
c94ae2e4	108	REG_L t6, 3*FFI_SIZEOF_ARG($fp) # load the flags word into t6.
63e5e3e0	109
c94ae2e4	110	and t4, t6, ((1<<FFI_FLAG_BITS)-1)
1450eb7a	111	REG_L a0, 0*FFI_SIZEOF_ARG(t9)
b1760f7f	112	beqz t4, arg1_next
63e5e3e0	113	bne t4, FFI_TYPE_FLOAT, arg1_doublep
1450eb7a	114	l.s $f12, 0*FFI_SIZEOF_ARG(t9)
63e5e3e0 AG	115	b arg1_next
63e5e3e0 AG	116	arg1_doublep:
1450eb7a	117	l.d $f12, 0*FFI_SIZEOF_ARG(t9)
63e5e3e0 AG	118	arg1_next:
63e5e3e0 AG	119
c94ae2e4	120	SRL t4, t6, 1*FFI_FLAG_BITS
63e5e3e0	121	and t4, ((1<<FFI_FLAG_BITS)-1)
1450eb7a	122	REG_L a1, 1*FFI_SIZEOF_ARG(t9)
b1760f7f	123	beqz t4, arg2_next
63e5e3e0	124	bne t4, FFI_TYPE_FLOAT, arg2_doublep
1450eb7a	125	l.s $f13, 1*FFI_SIZEOF_ARG(t9)
63e5e3e0 AG	126	b arg2_next
63e5e3e0 AG	127	arg2_doublep:
1450eb7a	128	l.d $f13, 1*FFI_SIZEOF_ARG(t9)
63e5e3e0 AG	129	arg2_next:
63e5e3e0 AG	130
c94ae2e4	131	SRL t4, t6, 2*FFI_FLAG_BITS
63e5e3e0	132	and t4, ((1<<FFI_FLAG_BITS)-1)
1450eb7a	133	REG_L a2, 2*FFI_SIZEOF_ARG(t9)
b1760f7f	134	beqz t4, arg3_next
63e5e3e0	135	bne t4, FFI_TYPE_FLOAT, arg3_doublep
1450eb7a	136	l.s $f14, 2*FFI_SIZEOF_ARG(t9)
63e5e3e0 AG	137	b arg3_next
63e5e3e0 AG	138	arg3_doublep:
1450eb7a	139	l.d $f14, 2*FFI_SIZEOF_ARG(t9)
63e5e3e0 AG	140	arg3_next:
63e5e3e0 AG	141
c94ae2e4	142	SRL t4, t6, 3*FFI_FLAG_BITS
63e5e3e0	143	and t4, ((1<<FFI_FLAG_BITS)-1)
1450eb7a	144	REG_L a3, 3*FFI_SIZEOF_ARG(t9)
b1760f7f	145	beqz t4, arg4_next
63e5e3e0	146	bne t4, FFI_TYPE_FLOAT, arg4_doublep
1450eb7a	147	l.s $f15, 3*FFI_SIZEOF_ARG(t9)
63e5e3e0 AG	148	b arg4_next
63e5e3e0 AG	149	arg4_doublep:
1450eb7a	150	l.d $f15, 3*FFI_SIZEOF_ARG(t9)
63e5e3e0 AG	151	arg4_next:
63e5e3e0 AG	152
c94ae2e4	153	SRL t4, t6, 4*FFI_FLAG_BITS
63e5e3e0	154	and t4, ((1<<FFI_FLAG_BITS)-1)
1450eb7a	155	REG_L a4, 4*FFI_SIZEOF_ARG(t9)
b1760f7f	156	beqz t4, arg5_next
63e5e3e0	157	bne t4, FFI_TYPE_FLOAT, arg5_doublep
1450eb7a	158	l.s $f16, 4*FFI_SIZEOF_ARG(t9)
63e5e3e0 AG	159	b arg5_next
63e5e3e0 AG	160	arg5_doublep:
1450eb7a	161	l.d $f16, 4*FFI_SIZEOF_ARG(t9)
63e5e3e0 AG	162	arg5_next:
63e5e3e0 AG	163
c94ae2e4	164	SRL t4, t6, 5*FFI_FLAG_BITS
63e5e3e0	165	and t4, ((1<<FFI_FLAG_BITS)-1)
1450eb7a	166	REG_L a5, 5*FFI_SIZEOF_ARG(t9)
b1760f7f	167	beqz t4, arg6_next
63e5e3e0	168	bne t4, FFI_TYPE_FLOAT, arg6_doublep
1450eb7a	169	l.s $f17, 5*FFI_SIZEOF_ARG(t9)
63e5e3e0 AG	170	b arg6_next
63e5e3e0 AG	171	arg6_doublep:
1450eb7a	172	l.d $f17, 5*FFI_SIZEOF_ARG(t9)
63e5e3e0 AG	173	arg6_next:
63e5e3e0 AG	174
c94ae2e4	175	SRL t4, t6, 6*FFI_FLAG_BITS
63e5e3e0	176	and t4, ((1<<FFI_FLAG_BITS)-1)
1450eb7a	177	REG_L a6, 6*FFI_SIZEOF_ARG(t9)
b1760f7f	178	beqz t4, arg7_next
63e5e3e0	179	bne t4, FFI_TYPE_FLOAT, arg7_doublep
1450eb7a	180	l.s $f18, 6*FFI_SIZEOF_ARG(t9)
63e5e3e0 AG	181	b arg7_next
63e5e3e0 AG	182	arg7_doublep:
1450eb7a	183	l.d $f18, 6*FFI_SIZEOF_ARG(t9)
63e5e3e0 AG	184	arg7_next:
63e5e3e0 AG	185
c94ae2e4	186	SRL t4, t6, 7*FFI_FLAG_BITS
63e5e3e0	187	and t4, ((1<<FFI_FLAG_BITS)-1)
1450eb7a	188	REG_L a7, 7*FFI_SIZEOF_ARG(t9)
b1760f7f	189	beqz t4, arg8_next
63e5e3e0	190	bne t4, FFI_TYPE_FLOAT, arg8_doublep
1450eb7a	191	l.s $f19, 7*FFI_SIZEOF_ARG(t9)
63e5e3e0 AG	192	b arg8_next
63e5e3e0 AG	193	arg8_doublep:
1450eb7a	194	l.d $f19, 7*FFI_SIZEOF_ARG(t9)
63e5e3e0 AG	195	arg8_next:
	196
	197	callit:
	198	# Load the function pointer
1450eb7a	199	REG_L t9, 5*FFI_SIZEOF_ARG($fp)
63e5e3e0 AG	200
63e5e3e0 AG	201	# If the return value pointer is NULL, assume no return value.
1450eb7a	202	REG_L t5, 4*FFI_SIZEOF_ARG($fp)
63e5e3e0 AG	203	beqz t5, noretval
	204
	205	# Shift the return type flag over
	206	SRL t6, 8*FFI_FLAG_BITS
5cbf8c8d DD	207
5cbf8c8d DD	208	beq t6, FFI_TYPE_SINT32, retint
63e5e3e0	209	bne t6, FFI_TYPE_INT, retfloat
5cbf8c8d	210	retint:
63e5e3e0	211	jal t9
1450eb7a	212	REG_L t4, 4*FFI_SIZEOF_ARG($fp)
63e5e3e0 AG	213	REG_S v0, 0(t4)
	214	b epilogue
	215
	216	retfloat:
	217	bne t6, FFI_TYPE_FLOAT, retdouble
	218	jal t9
1450eb7a	219	REG_L t4, 4*FFI_SIZEOF_ARG($fp)
63e5e3e0 AG	220	s.s $f0, 0(t4)
	221	b epilogue
	222
	223	retdouble:
	224	bne t6, FFI_TYPE_DOUBLE, retstruct_d
	225	jal t9
1450eb7a	226	REG_L t4, 4*FFI_SIZEOF_ARG($fp)
63e5e3e0 AG	227	s.d $f0, 0(t4)
	228	b epilogue
	229
	230	retstruct_d:
	231	bne t6, FFI_TYPE_STRUCT_D, retstruct_f
	232	jal t9
1450eb7a	233	REG_L t4, 4*FFI_SIZEOF_ARG($fp)
63e5e3e0 AG	234	s.d $f0, 0(t4)
	235	b epilogue
	236
	237	retstruct_f:
	238	bne t6, FFI_TYPE_STRUCT_F, retstruct_d_d
	239	jal t9
1450eb7a	240	REG_L t4, 4*FFI_SIZEOF_ARG($fp)
63e5e3e0 AG	241	s.s $f0, 0(t4)
	242	b epilogue
	243
	244	retstruct_d_d:
	245	bne t6, FFI_TYPE_STRUCT_DD, retstruct_f_f
	246	jal t9
1450eb7a	247	REG_L t4, 4*FFI_SIZEOF_ARG($fp)
63e5e3e0 AG	248	s.d $f0, 0(t4)
	249	s.d $f2, 8(t4)
	250	b epilogue
	251
	252	retstruct_f_f:
	253	bne t6, FFI_TYPE_STRUCT_FF, retstruct_d_f
	254	jal t9
1450eb7a	255	REG_L t4, 4*FFI_SIZEOF_ARG($fp)
63e5e3e0 AG	256	s.s $f0, 0(t4)
	257	s.s $f2, 4(t4)
	258	b epilogue
	259
	260	retstruct_d_f:
	261	bne t6, FFI_TYPE_STRUCT_DF, retstruct_f_d
	262	jal t9
1450eb7a	263	REG_L t4, 4*FFI_SIZEOF_ARG($fp)
63e5e3e0 AG	264	s.d $f0, 0(t4)
	265	s.s $f2, 8(t4)
	266	b epilogue
	267
	268	retstruct_f_d:
5cbf8c8d	269	bne t6, FFI_TYPE_STRUCT_FD, retstruct_d_soft
63e5e3e0	270	jal t9
1450eb7a	271	REG_L t4, 4*FFI_SIZEOF_ARG($fp)
63e5e3e0 AG	272	s.s $f0, 0(t4)
	273	s.d $f2, 8(t4)
	274	b epilogue
5cbf8c8d DD	275
	276	retstruct_d_soft:
	277	bne t6, FFI_TYPE_STRUCT_D_SOFT, retstruct_f_soft
	278	jal t9
	279	REG_L t4, 4*FFI_SIZEOF_ARG($fp)
	280	sd v0, 0(t4)
	281	b epilogue
	282
	283	retstruct_f_soft:
	284	bne t6, FFI_TYPE_STRUCT_F_SOFT, retstruct_d_d_soft
	285	jal t9
	286	REG_L t4, 4*FFI_SIZEOF_ARG($fp)
	287	sw v0, 0(t4)
	288	b epilogue
	289
	290	retstruct_d_d_soft:
	291	bne t6, FFI_TYPE_STRUCT_DD_SOFT, retstruct_f_f_soft
	292	jal t9
	293	REG_L t4, 4*FFI_SIZEOF_ARG($fp)
	294	sd v0, 0(t4)
	295	sd v1, 8(t4)
	296	b epilogue
	297
	298	retstruct_f_f_soft:
	299	bne t6, FFI_TYPE_STRUCT_FF_SOFT, retstruct_d_f_soft
	300	jal t9
	301	REG_L t4, 4*FFI_SIZEOF_ARG($fp)
	302	sw v0, 0(t4)
	303	sw v1, 4(t4)
	304	b epilogue
	305
	306	retstruct_d_f_soft:
	307	bne t6, FFI_TYPE_STRUCT_DF_SOFT, retstruct_f_d_soft
	308	jal t9
	309	REG_L t4, 4*FFI_SIZEOF_ARG($fp)
	310	sd v0, 0(t4)
	311	sw v1, 8(t4)
	312	b epilogue
	313
	314	retstruct_f_d_soft:
	315	bne t6, FFI_TYPE_STRUCT_FD_SOFT, retstruct_small
	316	jal t9
	317	REG_L t4, 4*FFI_SIZEOF_ARG($fp)
	318	sw v0, 0(t4)
	319	sd v1, 8(t4)
	320	b epilogue
63e5e3e0 AG	321
	322	retstruct_small:
	323	bne t6, FFI_TYPE_STRUCT_SMALL, retstruct_small2
	324	jal t9
1450eb7a	325	REG_L t4, 4*FFI_SIZEOF_ARG($fp)
63e5e3e0 AG	326	REG_S v0, 0(t4)
	327	b epilogue
	328
	329	retstruct_small2:
	330	bne t6, FFI_TYPE_STRUCT_SMALL2, retstruct
	331	jal t9
1450eb7a	332	REG_L t4, 4*FFI_SIZEOF_ARG($fp)
63e5e3e0 AG	333	REG_S v0, 0(t4)
	334	REG_S v1, 8(t4)
	335	b epilogue
	336
	337	retstruct:
	338	noretval:
	339	jal t9
	340
	341	# Epilogue
	342	epilogue:
	343	move $sp, $fp
1450eb7a AT	344	REG_L $fp, SIZEOF_FRAME - 2*FFI_SIZEOF_ARG($sp) # Restore frame pointer
1450eb7a AT	345	REG_L ra, SIZEOF_FRAME - 1*FFI_SIZEOF_ARG($sp) # Restore return address
63e5e3e0 AG	346	ADDU $sp, SIZEOF_FRAME # Fix stack pointer
	347	j ra
	348
89d9d98a	349	.LFE3:
63e5e3e0	350	.end ffi_call_N32
89d9d98a DD	351
	352	/* ffi_closure_N32. Expects address of the passed-in ffi_closure in t0
	353	($12). Stores any arguments passed in registers onto the stack,
	354	then calls ffi_closure_mips_inner_N32, which then decodes
	355	them.
	356
	357	Stack layout:
	358
	359	20 - Start of parameters, original sp
	360	19 - Called function a7 save
	361	18 - Called function a6 save
	362	17 - Called function a5 save
	363	16 - Called function a4 save
	364	15 - Called function a3 save
	365	14 - Called function a2 save
	366	13 - Called function a1 save
	367	12 - Called function a0 save
	368	11 - Called function f19
	369	10 - Called function f18
	370	9 - Called function f17
	371	8 - Called function f16
	372	7 - Called function f15
	373	6 - Called function f14
	374	5 - Called function f13
	375	4 - Called function f12
	376	3 - return value high (v1 or $f2)
	377	2 - return value low (v0 or $f0)
	378	1 - ra save
	379	0 - gp save our sp points here
	380	*/
	381
	382	#define SIZEOF_FRAME2 (20 * FFI_SIZEOF_ARG)
	383
	384	#define A7_OFF2 (19 * FFI_SIZEOF_ARG)
	385	#define A6_OFF2 (18 * FFI_SIZEOF_ARG)
	386	#define A5_OFF2 (17 * FFI_SIZEOF_ARG)
	387	#define A4_OFF2 (16 * FFI_SIZEOF_ARG)
	388	#define A3_OFF2 (15 * FFI_SIZEOF_ARG)
	389	#define A2_OFF2 (14 * FFI_SIZEOF_ARG)
	390	#define A1_OFF2 (13 * FFI_SIZEOF_ARG)
	391	#define A0_OFF2 (12 * FFI_SIZEOF_ARG)
	392
	393	#define F19_OFF2 (11 * FFI_SIZEOF_ARG)
	394	#define F18_OFF2 (10 * FFI_SIZEOF_ARG)
	395	#define F17_OFF2 (9 * FFI_SIZEOF_ARG)
	396	#define F16_OFF2 (8 * FFI_SIZEOF_ARG)
	397	#define F15_OFF2 (7 * FFI_SIZEOF_ARG)
	398	#define F14_OFF2 (6 * FFI_SIZEOF_ARG)
	399	#define F13_OFF2 (5 * FFI_SIZEOF_ARG)
	400	#define F12_OFF2 (4 * FFI_SIZEOF_ARG)
	401
	402	#define V1_OFF2 (3 * FFI_SIZEOF_ARG)
	403	#define V0_OFF2 (2 * FFI_SIZEOF_ARG)
	404
	405	#define RA_OFF2 (1 * FFI_SIZEOF_ARG)
	406	#define GP_OFF2 (0 * FFI_SIZEOF_ARG)
	407
	408	.align 2
	409	.globl ffi_closure_N32
	410	.ent ffi_closure_N32
	411	ffi_closure_N32:
	412	.LFB2:
	413	.frame $sp, SIZEOF_FRAME2, ra
	414	.mask 0x90000000,-(SIZEOF_FRAME2 - RA_OFF2)
415	.fmask 0x00000000,0
416	SUBU $sp, SIZEOF_FRAME2
417	.LCFI5:
418	.cpsetup t9, GP_OFF2, ffi_closure_N32
419	REG_S ra, RA_OFF2($sp) # Save return address
420	.LCFI6:
421	# Store all possible argument registers. If there are more than
422	# fit in registers, then they were stored on the stack.
423	REG_S a0, A0_OFF2($sp)
424	REG_S a1, A1_OFF2($sp)
425	REG_S a2, A2_OFF2($sp)
426	REG_S a3, A3_OFF2($sp)
427	REG_S a4, A4_OFF2($sp)
428	REG_S a5, A5_OFF2($sp)
429	REG_S a6, A6_OFF2($sp)
430	REG_S a7, A7_OFF2($sp)
431
432	# Store all possible float/double registers.
433	s.d $f12, F12_OFF2($sp)
434	s.d $f13, F13_OFF2($sp)
435	s.d $f14, F14_OFF2($sp)
436	s.d $f15, F15_OFF2($sp)
437	s.d $f16, F16_OFF2($sp)
438	s.d $f17, F17_OFF2($sp)
439	s.d $f18, F18_OFF2($sp)
440	s.d $f19, F19_OFF2($sp)
441
442	# Call ffi_closure_mips_inner_N32 to do the real work.
443	LA t9, ffi_closure_mips_inner_N32
444	move a0, $12 # Pointer to the ffi_closure
3ef50b62 DD	445	ADDU a1, $sp, V0_OFF2
	446	ADDU a2, $sp, A0_OFF2
	447	ADDU a3, $sp, F12_OFF2
89d9d98a DD	448	jalr t9
	449
	450	# Return flags are in v0
5cbf8c8d DD	451	bne v0, FFI_TYPE_SINT32, cls_retint
	452	lw v0, V0_OFF2($sp)
	453	b cls_epilogue
	454
	455	cls_retint:
89d9d98a DD	456	bne v0, FFI_TYPE_INT, cls_retfloat
	457	REG_L v0, V0_OFF2($sp)
	458	b cls_epilogue
	459
	460	cls_retfloat:
	461	bne v0, FFI_TYPE_FLOAT, cls_retdouble
	462	l.s $f0, V0_OFF2($sp)
	463	b cls_epilogue
	464
	465	cls_retdouble:
	466	bne v0, FFI_TYPE_DOUBLE, cls_retstruct_d
	467	l.d $f0, V0_OFF2($sp)
	468	b cls_epilogue
	469
	470	cls_retstruct_d:
	471	bne v0, FFI_TYPE_STRUCT_D, cls_retstruct_f
	472	l.d $f0, V0_OFF2($sp)
	473	b cls_epilogue
	474
	475	cls_retstruct_f:
	476	bne v0, FFI_TYPE_STRUCT_F, cls_retstruct_d_d
	477	l.s $f0, V0_OFF2($sp)
	478	b cls_epilogue
	479
	480	cls_retstruct_d_d:
	481	bne v0, FFI_TYPE_STRUCT_DD, cls_retstruct_f_f
	482	l.d $f0, V0_OFF2($sp)
	483	l.d $f2, V1_OFF2($sp)
	484	b cls_epilogue
	485
	486	cls_retstruct_f_f:
	487	bne v0, FFI_TYPE_STRUCT_FF, cls_retstruct_d_f
	488	l.s $f0, V0_OFF2($sp)
	489	l.s $f2, V1_OFF2($sp)
	490	b cls_epilogue
	491
	492	cls_retstruct_d_f:
	493	bne v0, FFI_TYPE_STRUCT_DF, cls_retstruct_f_d
	494	l.d $f0, V0_OFF2($sp)
	495	l.s $f2, V1_OFF2($sp)
	496	b cls_epilogue
	497
	498	cls_retstruct_f_d:
	499	bne v0, FFI_TYPE_STRUCT_FD, cls_retstruct_small2
	500	l.s $f0, V0_OFF2($sp)
	501	l.d $f2, V1_OFF2($sp)
	502	b cls_epilogue
	503
	504	cls_retstruct_small2:
	505	REG_L v0, V0_OFF2($sp)
	506	REG_L v1, V1_OFF2($sp)
	507
	508	# Epilogue
	509	cls_epilogue:
	510	REG_L ra, RA_OFF2($sp) # Restore return address
	511	.cpreturn
	512	ADDU $sp, SIZEOF_FRAME2
	513	j ra
	514	.LFE2:
	515	.end ffi_closure_N32
	516
86d1b9d1	517	#ifdef __GNUC__
89d9d98a DD	518	.section .eh_frame,"aw",@progbits
	519	.Lframe1:
	520	.4byte .LECIE1-.LSCIE1 # length
	521	.LSCIE1:
	522	.4byte 0x0 # CIE
	523	.byte 0x1 # Version 1
	524	.ascii "\000" # Augmentation
	525	.uleb128 0x1 # Code alignment 1
	526	.sleb128 -4 # Data alignment -4
	527	.byte 0x1f # Return Address $31
	528	.byte 0xc # DW_CFA_def_cfa
	529	.uleb128 0x1d # in $sp
	530	.uleb128 0x0 # offset 0
	531	.align EH_FRAME_ALIGN
	532	.LECIE1:
	533
	534	.LSFDE1:
	535	.4byte .LEFDE1-.LASFDE1 # length.
	536	.LASFDE1:
	537	.4byte .LASFDE1-.Lframe1 # CIE_pointer.
	538	FDE_ADDR_BYTES .LFB3 # initial_location.
	539	FDE_ADDR_BYTES .LFE3-.LFB3 # address_range.
	540	.byte 0x4 # DW_CFA_advance_loc4
	541	.4byte .LCFI0-.LFB3 # to .LCFI0
	542	.byte 0xe # DW_CFA_def_cfa_offset
	543	.uleb128 SIZEOF_FRAME # adjust stack.by SIZEOF_FRAME
	544	.byte 0x4 # DW_CFA_advance_loc4
	545	.4byte .LCFI1-.LCFI0 # to .LCFI1
	546	.byte 0x9e # DW_CFA_offset of $fp
	547	.uleb128 2*FFI_SIZEOF_ARG/4 #
	548	.byte 0x9f # DW_CFA_offset of ra
	549	.uleb128 1*FFI_SIZEOF_ARG/4 #
	550	.byte 0x4 # DW_CFA_advance_loc4
	551	.4byte .LCFI3-.LCFI1 # to .LCFI3
	552	.byte 0xd # DW_CFA_def_cfa_register
	553	.uleb128 0x1e # in $fp
	554	.align EH_FRAME_ALIGN
	555	.LEFDE1:
	556	.LSFDE3:
	557	.4byte .LEFDE3-.LASFDE3 # length
	558	.LASFDE3:
	559	.4byte .LASFDE3-.Lframe1 # CIE_pointer.
	560	FDE_ADDR_BYTES .LFB2 # initial_location.
	561	FDE_ADDR_BYTES .LFE2-.LFB2 # address_range.
	562	.byte 0x4 # DW_CFA_advance_loc4
	563	.4byte .LCFI5-.LFB2 # to .LCFI5
	564	.byte 0xe # DW_CFA_def_cfa_offset
	565	.uleb128 SIZEOF_FRAME2 # adjust stack.by SIZEOF_FRAME
	566	.byte 0x4 # DW_CFA_advance_loc4
	567	.4byte .LCFI6-.LCFI5 # to .LCFI6
	568	.byte 0x9c # DW_CFA_offset of $gp ($28)
	569	.uleb128 (SIZEOF_FRAME2 - GP_OFF2)/4
	570	.byte 0x9f # DW_CFA_offset of ra ($31)
	571	.uleb128 (SIZEOF_FRAME2 - RA_OFF2)/4
	572	.align EH_FRAME_ALIGN
	573	.LEFDE3:
86d1b9d1	574	#endif /* __GNUC__ */
63e5e3e0 AG	575
63e5e3e0 AG	576	#endif