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Commit d4a80984 authored by Duane Sand's avatar Duane Sand
Browse files

[MIPS] Benchmark test for MIPS memset16/memset32 

Author: Chris Dearman <chris@mips.com>
AuthorDate: 2011-07-26 19:24:40
Change-Id: I0a7b3360aaf45de8ee47744f7031b84f15f37611
parent 38219ee6

libcutils/Android.mk

+2 −0
Original line number Diff line number Diff line
@@ -158,3 +158,5 @@ LOCAL_SRC_FILES := str_parms.c hashmap.c memory.c 
LOCAL_SHARED_LIBRARIES := liblog

LOCAL_MODULE_TAGS := optional

include $(BUILD_EXECUTABLE)



include $(call all-makefiles-under,$(LOCAL_PATH))

libcutils/tests/Android.mk

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include $(all-subdir-makefiles)

libcutils/tests/memset_mips/Android.mk

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# Copyright 2012 The Android Open Source Project



ifeq ($(TARGET_ARCH),mips)



LOCAL_PATH:= $(call my-dir)

include $(CLEAR_VARS)



LOCAL_SRC_FILES:= \

	test_memset.c \

	android_memset_dumb.S \

	android_memset_test.S \

	memset_cmips.S \

	memset_omips.S



LOCAL_MODULE:= test_memset



LOCAL_FORCE_STATIC_EXECUTABLE := true

LOCAL_STATIC_LIBRARIES := libcutils libc

LOCAL_MODULE_TAGS := tests



include $(BUILD_EXECUTABLE)



endif

libcutils/tests/memset_mips/android_memset_dumb.S

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+36 −0
Original line number Diff line number Diff line 
	.global	android_memset16_dumb

	.type   android_memset16_dumb, @function

android_memset16_dumb:

        .ent	android_memset16_dumb



	.set	noreorder

	beqz	$a2,9f

	 srl	$a2,1



1:	sh	$a1,($a0)

	subu	$a2,1

	bnez	$a2,1b

	 addu	$a0,2

	.set reorder



9:	j	$ra

        .end	android_memset16_dumb

	.size	android_memset16_dumb,.-android_memset16_dumb



	.global android_memset32_dumb

	.type	android_memset32_dumb, @function

android_memset32_dumb:

        .ent	android_memset32_dumb

	.set	noreorder

	beqz	$a2,9f

	 srl	$a2,2



1:	sw	$a1,($a0)

	subu	$a2,1

	bnez	$a2,1b

	 addu	$a0,4

	.set reorder



9:	j	$ra

        .end	android_memset32_dumb

	.size	android_memset32_dumb,.-android_memset32_dumb

libcutils/tests/memset_mips/android_memset_test.S

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+152 −0
Original line number Diff line number Diff line 
/*

 * Copyright (C) 2006 The android Open Source Project

 *

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at

 *

 *      http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */



#ifdef NDEBUG

#define DBG #

#else

#define DBG

#endif



	.text

	.align



        /*

         * Optimized memset16 for MIPS

         *

         * void android_memset16_test(uint16_t* dst, uint16_t value, size_t size);

         *

         */



	.global	android_memset16_test

	.type   android_memset16_test, @function

android_memset16_test:

        .ent	android_memset16_test

	.set	noreorder



	/* Check parameters */

DBG	andi	$t0,$a0,1	/* $a0 must be halfword aligned */

DBG	tne	$t0

DBG	lui	$t1,0xffff	/* $a1 must be 16bits */

DBG	and	$t1,$a1

DBG	tne	$t1

DBG	andi	$t2,$a2,1	/* $a2 must be even */

DBG	tne	$t2



#if (__mips==32) && (__mips_isa_rev>=2)

	ins	$a2,$0,0,1

#else

	li	$t0,~1

	and	$a2,$t0

#endif



	move	$t8,$ra

	blez	$a2,9f		/* Anything to do? */

	 andi	$t0,$a0,2	/* Check dst alignment */

	/* Expand value to 32 bits and check destination alignment */

#if (__mips==32) && (__mips_isa_rev>=2)

	beqz	$t0,.Laligned32	/* dst is 32 bit aligned */

	 ins	$a1,$a1,16,16

#else

	sll	$t2,$a1,16

	beqz	$t0,.Laligned32	/* dst is 32 bit aligned */

	 or	$a1,$t2

#endif

	sh	$a1,($a0)	/* do one halfword to get aligned */

	subu	$a2,2

	addu	$a0,2



.Laligned32:

	and	$t1,$a2,63	/* is there enough left to do a full 64 byte loop? */

	beq	$a2,$t1,1f

	 subu	$t2,$a2,$t1	/* $t2 is the number of bytes to do in loop64 */

	addu	$t3,$a0,$t2	/* $t3 is the end marker for loop64 */

	subu	$a2,$t2

.Lloop64:

	addu	$a0,64

	sw	$a1,-64($a0)

	sw	$a1,-60($a0)

	sw	$a1,-56($a0)

	sw	$a1,-52($a0)

	sw	$a1,-48($a0)

	sw	$a1,-44($a0)

	sw	$a1,-40($a0)

	sw	$a1,-36($a0)

	sw	$a1,-32($a0)

	sw	$a1,-28($a0)

	sw	$a1,-24($a0)

	sw	$a1,-20($a0)

	sw	$a1,-16($a0)

	sw	$a1,-12($a0)

	sw	$a1,-8($a0)

	bne	$a0,$t3,.Lloop64

	sw	$a1,-4($a0)



	/* Do the last 0..62 bytes */

1:	li	$t0,64+12

	andi	$t1,$a2,0x3c	/* $t1 how many bytes to store using sw */

	bal	1f

	 subu	$t0,$t1		/* 64+12-$t0 is offset to jump from 1f */

1:	addu	$ra,$t0

	j	$ra

	 subu	$a2,$t1

2:	sw	$a1,60($a0)

	sw	$a1,56($a0)

	sw	$a1,52($a0)

	sw	$a1,48($a0)

	sw	$a1,44($a0)

	sw	$a1,40($a0)

	sw	$a1,36($a0)

	sw	$a1,32($a0)

	sw	$a1,28($a0)

	sw	$a1,24($a0)

	sw	$a1,20($a0)

	sw	$a1,16($a0)

	sw	$a1,12($a0)

	sw	$a1,8($a0)

	sw	$a1,4($a0)

	sw	$a1,0($a0)



	beqz	$a2,9f

	 addu	$a0,$t1

	sh	$a1,($a0)



9:	j	$t8

	 nop

        .end	android_memset16_test

	.size	android_memset16_test,.-android_memset16_test



        /*

         * Optimized memset32 for MIPS

         *

         * void android_memset32_test(uint32_t* dst, uint32_t value, size_t size);

         *

         */

	.global android_memset32_test

	.type	android_memset32_test, @function

android_memset32_test:

        .ent	android_memset32_test

	.set	noreorder



	/* Check parameters */

DBG	andi	$t0,$a0,3	/* $a0 must be word aligned */

DBG	tne	$t0

DBG	andi	$t2,$a2,3	/* $a2 must be a multiple of 4 bytes */

DBG	tne	$t2



	b	.Laligned32

	 move	$t8,$ra

        .end	android_memset32_test

	.size	android_memset32_test,.-android_memset32_test