diff options
Diffstat (limited to 'sysdeps/mips')
| -rw-r--r-- | sysdeps/mips/memcpy.S | 194 |
1 files changed, 97 insertions, 97 deletions
diff --git a/sysdeps/mips/memcpy.S b/sysdeps/mips/memcpy.S index 2420f931b2..7574fdc9b7 100644 --- a/sysdeps/mips/memcpy.S +++ b/sysdeps/mips/memcpy.S @@ -16,67 +16,67 @@ <http://www.gnu.org/licenses/>. */ #ifdef ANDROID_CHANGES -#include "machine/asm.h" -#include "machine/regdef.h" -#define USE_MEMMOVE_FOR_OVERLAP -#define PREFETCH_LOAD_HINT PREFETCH_HINT_LOAD_STREAMED -#define PREFETCH_STORE_HINT PREFETCH_HINT_PREPAREFORSTORE +# include "machine/asm.h" +# include "machine/regdef.h" +# define USE_MEMMOVE_FOR_OVERLAP +# define PREFETCH_LOAD_HINT PREFETCH_HINT_LOAD_STREAMED +# define PREFETCH_STORE_HINT PREFETCH_HINT_PREPAREFORSTORE #elif _LIBC -#include <sysdep.h> -#include <regdef.h> -#include <sys/asm.h> -#define PREFETCH_LOAD_HINT PREFETCH_HINT_LOAD_STREAMED -#define PREFETCH_STORE_HINT PREFETCH_HINT_PREPAREFORSTORE +# include <sysdep.h> +# include <regdef.h> +# include <sys/asm.h> +# define PREFETCH_LOAD_HINT PREFETCH_HINT_LOAD_STREAMED +# define PREFETCH_STORE_HINT PREFETCH_HINT_PREPAREFORSTORE #elif _COMPILING_NEWLIB -#include "machine/asm.h" -#include "machine/regdef.h" -#define PREFETCH_LOAD_HINT PREFETCH_HINT_LOAD_STREAMED -#define PREFETCH_STORE_HINT PREFETCH_HINT_PREPAREFORSTORE +# include "machine/asm.h" +# include "machine/regdef.h" +# define PREFETCH_LOAD_HINT PREFETCH_HINT_LOAD_STREAMED +# define PREFETCH_STORE_HINT PREFETCH_HINT_PREPAREFORSTORE #else -#include <regdef.h> -#include <sys/asm.h> +# include <regdef.h> +# include <sys/asm.h> #endif #if (_MIPS_ISA == _MIPS_ISA_MIPS4) || (_MIPS_ISA == _MIPS_ISA_MIPS5) || \ (_MIPS_ISA == _MIPS_ISA_MIPS32) || (_MIPS_ISA == _MIPS_ISA_MIPS64) -#ifndef DISABLE_PREFETCH -#define USE_PREFETCH -#endif +# ifndef DISABLE_PREFETCH +# define USE_PREFETCH +# endif #endif #if defined(_MIPS_SIM) && ((_MIPS_SIM == _ABI64) || (_MIPS_SIM == _ABIN32)) -#ifndef DISABLE_DOUBLE -#define USE_DOUBLE -#endif +# ifndef DISABLE_DOUBLE +# define USE_DOUBLE +# endif #endif /* Some asm.h files do not have the L macro definition. */ #ifndef L -#if _MIPS_SIM == _ABIO32 -# define L(label) $L ## label -#else -# define L(label) .L ## label -#endif +# if _MIPS_SIM == _ABIO32 +# define L(label) $L ## label +# else +# define L(label) .L ## label +# endif #endif /* Some asm.h files do not have the PTR_ADDIU macro definition. */ #ifndef PTR_ADDIU -#ifdef USE_DOUBLE -#define PTR_ADDIU daddiu -#else -#define PTR_ADDIU addiu -#endif +# ifdef USE_DOUBLE +# define PTR_ADDIU daddiu +# else +# define PTR_ADDIU addiu +# endif #endif /* Some asm.h files do not have the PTR_SRA macro definition. */ #ifndef PTR_SRA -#ifdef USE_DOUBLE -#define PTR_SRA dsra -#else -#define PTR_SRA sra -#endif +# ifdef USE_DOUBLE +# define PTR_SRA dsra +# else +# define PTR_SRA sra +# endif #endif @@ -126,12 +126,12 @@ * If we have not picked out what hints to use at this point use the * standard load and store prefetch hints. */ -#ifndef PREFETCH_STORE_HINT -# define PREFETCH_STORE_HINT PREFETCH_HINT_STORE -#endif -#ifndef PREFETCH_LOAD_HINT -# define PREFETCH_LOAD_HINT PREFETCH_HINT_LOAD -#endif +# ifndef PREFETCH_STORE_HINT +# define PREFETCH_STORE_HINT PREFETCH_HINT_STORE +# endif +# ifndef PREFETCH_LOAD_HINT +# define PREFETCH_LOAD_HINT PREFETCH_HINT_LOAD +# endif /* * We double everything when USE_DOUBLE is true so we do 2 prefetches to @@ -139,43 +139,43 @@ * prefetch brings in 32 bytes. */ -#ifdef USE_DOUBLE -# define PREFETCH_CHUNK 64 -# define PREFETCH_FOR_LOAD(chunk, reg) \ +# ifdef USE_DOUBLE +# define PREFETCH_CHUNK 64 +# define PREFETCH_FOR_LOAD(chunk, reg) \ pref PREFETCH_LOAD_HINT, (chunk)*64(reg); \ pref PREFETCH_LOAD_HINT, ((chunk)*64)+32(reg) -# define PREFETCH_FOR_STORE(chunk, reg) \ +# define PREFETCH_FOR_STORE(chunk, reg) \ pref PREFETCH_STORE_HINT, (chunk)*64(reg); \ pref PREFETCH_STORE_HINT, ((chunk)*64)+32(reg) -#else -# define PREFETCH_CHUNK 32 -# define PREFETCH_FOR_LOAD(chunk, reg) \ +# else +# define PREFETCH_CHUNK 32 +# define PREFETCH_FOR_LOAD(chunk, reg) \ pref PREFETCH_LOAD_HINT, (chunk)*32(reg) -# define PREFETCH_FOR_STORE(chunk, reg) \ +# define PREFETCH_FOR_STORE(chunk, reg) \ pref PREFETCH_STORE_HINT, (chunk)*32(reg) -#endif +# endif /* MAX_PREFETCH_SIZE is the maximum size of a prefetch, it must not be less * than PREFETCH_CHUNK, the assumed size of each prefetch. If the real size * of a prefetch is greater than MAX_PREFETCH_SIZE and the PREPAREFORSTORE * hint is used, the code will not work correctly. If PREPAREFORSTORE is not * used then MAX_PREFETCH_SIZE does not matter. */ -#define MAX_PREFETCH_SIZE 128 +# define MAX_PREFETCH_SIZE 128 /* PREFETCH_LIMIT is set based on the fact that we never use an offset greater * than 5 on a STORE prefetch and that a single prefetch can never be larger * than MAX_PREFETCH_SIZE. We add the extra 32 when USE_DOUBLE is set because * we actually do two prefetches in that case, one 32 bytes after the other. */ -#ifdef USE_DOUBLE -# define PREFETCH_LIMIT (5 * PREFETCH_CHUNK) + 32 + MAX_PREFETCH_SIZE -#else -# define PREFETCH_LIMIT (5 * PREFETCH_CHUNK) + MAX_PREFETCH_SIZE -#endif -#if (PREFETCH_STORE_HINT == PREFETCH_HINT_PREPAREFORSTORE) \ +# ifdef USE_DOUBLE +# define PREFETCH_LIMIT (5 * PREFETCH_CHUNK) + 32 + MAX_PREFETCH_SIZE +# else +# define PREFETCH_LIMIT (5 * PREFETCH_CHUNK) + MAX_PREFETCH_SIZE +# endif +# if (PREFETCH_STORE_HINT == PREFETCH_HINT_PREPAREFORSTORE) \ && ((PREFETCH_CHUNK * 4) < MAX_PREFETCH_SIZE) /* We cannot handle this because the initial prefetches may fetch bytes that * are before the buffer being copied. We start copies with an offset * of 4 so avoid this situation when using PREPAREFORSTORE. */ #error "PREFETCH_CHUNK is too large and/or MAX_PREFETCH_SIZE is too small." -#endif +# endif #else /* USE_PREFETCH not defined */ # define PREFETCH_FOR_LOAD(offset, reg) # define PREFETCH_FOR_STORE(offset, reg) @@ -183,7 +183,7 @@ /* Allow the routine to be named something else if desired. */ #ifndef MEMCPY_NAME -#define MEMCPY_NAME memcpy +# define MEMCPY_NAME memcpy #endif /* We use these 32/64 bit registers as temporaries to do the copying. */ @@ -192,15 +192,15 @@ #define REG2 t2 #define REG3 t3 #if defined(_MIPS_SIM) && ((_MIPS_SIM == _ABIO32) || (_MIPS_SIM == _ABIO64)) -# define REG4 t4 -# define REG5 t5 -# define REG6 t6 -# define REG7 t7 +# define REG4 t4 +# define REG5 t5 +# define REG6 t6 +# define REG7 t7 #else -# define REG4 ta0 -# define REG5 ta1 -# define REG6 ta2 -# define REG7 ta3 +# define REG4 ta0 +# define REG5 ta1 +# define REG6 ta2 +# define REG7 ta3 #endif /* We load/store 64 bits at a time when USE_DOUBLE is true. @@ -208,44 +208,44 @@ * conflicts with system header files. */ #ifdef USE_DOUBLE -# define C_ST sd -# define C_LD ld -#if __MIPSEB +# define C_ST sd +# define C_LD ld +# if __MIPSEB # define C_LDHI ldl /* high part is left in big-endian */ # define C_STHI sdl /* high part is left in big-endian */ # define C_LDLO ldr /* low part is right in big-endian */ # define C_STLO sdr /* low part is right in big-endian */ -#else +# else # define C_LDHI ldr /* high part is right in little-endian */ # define C_STHI sdr /* high part is right in little-endian */ # define C_LDLO ldl /* low part is left in little-endian */ # define C_STLO sdl /* low part is left in little-endian */ -#endif +# endif #else -# define C_ST sw -# define C_LD lw -#if __MIPSEB +# define C_ST sw +# define C_LD lw +# if __MIPSEB # define C_LDHI lwl /* high part is left in big-endian */ # define C_STHI swl /* high part is left in big-endian */ # define C_LDLO lwr /* low part is right in big-endian */ # define C_STLO swr /* low part is right in big-endian */ -#else +# else # define C_LDHI lwr /* high part is right in little-endian */ # define C_STHI swr /* high part is right in little-endian */ # define C_LDLO lwl /* low part is left in little-endian */ # define C_STLO swl /* low part is left in little-endian */ -#endif +# endif #endif /* Bookkeeping values for 32 vs. 64 bit mode. */ #ifdef USE_DOUBLE -# define NSIZE 8 -# define NSIZEMASK 0x3f -# define NSIZEDMASK 0x7f +# define NSIZE 8 +# define NSIZEMASK 0x3f +# define NSIZEDMASK 0x7f #else -# define NSIZE 4 -# define NSIZEMASK 0x1f -# define NSIZEDMASK 0x3f +# define NSIZE 4 +# define NSIZEMASK 0x1f +# define NSIZEDMASK 0x3f #endif #define UNIT(unit) ((unit)*NSIZE) #define UNITM1(unit) (((unit)*NSIZE)-1) @@ -339,22 +339,22 @@ L(aligned): PREFETCH_FOR_STORE (3, a0) #endif #if defined(RETURN_FIRST_PREFETCH) && defined(USE_PREFETCH) -#if PREFETCH_STORE_HINT == PREFETCH_HINT_PREPAREFORSTORE +# if PREFETCH_STORE_HINT == PREFETCH_HINT_PREPAREFORSTORE sltu v1,t9,a0 bgtz v1,L(skip_set) nop PTR_ADDIU v0,a0,(PREFETCH_CHUNK*4) L(skip_set): -#else +# else PTR_ADDIU v0,a0,(PREFETCH_CHUNK*1) -#endif +# endif #endif #if defined(RETURN_LAST_PREFETCH) && defined(USE_PREFETCH) \ && (PREFETCH_STORE_HINT != PREFETCH_HINT_PREPAREFORSTORE) PTR_ADDIU v0,a0,(PREFETCH_CHUNK*3) -#ifdef USE_DOUBLE +# ifdef USE_DOUBLE PTR_ADDIU v0,v0,32 -#endif +# endif #endif L(loop16w): C_LD t0,UNIT(0)(a1) @@ -367,9 +367,9 @@ L(loop16w): PREFETCH_FOR_STORE (5, a0) #if defined(RETURN_LAST_PREFETCH) && defined(USE_PREFETCH) PTR_ADDIU v0,a0,(PREFETCH_CHUNK*5) -#ifdef USE_DOUBLE +# ifdef USE_DOUBLE PTR_ADDIU v0,v0,32 -#endif +# endif #endif L(skip_pref): C_LD REG2,UNIT(2)(a1) @@ -523,15 +523,15 @@ L(ua_chk16w): PREFETCH_FOR_STORE (3, a0) #endif #if defined(RETURN_FIRST_PREFETCH) && defined(USE_PREFETCH) -#if (PREFETCH_STORE_HINT == PREFETCH_HINT_PREPAREFORSTORE) +# if (PREFETCH_STORE_HINT == PREFETCH_HINT_PREPAREFORSTORE) sltu v1,t9,a0 bgtz v1,L(ua_skip_set) nop PTR_ADDIU v0,a0,(PREFETCH_CHUNK*4) L(ua_skip_set): -#else +# else PTR_ADDIU v0,a0,(PREFETCH_CHUNK*1) -#endif +# endif #endif L(ua_loop16w): PREFETCH_FOR_LOAD (3, a1) @@ -671,7 +671,7 @@ L(ua_smallCopy_loop): .set reorder END(MEMCPY_NAME) #ifndef ANDROID_CHANGES -#ifdef _LIBC +# ifdef _LIBC libc_hidden_builtin_def (MEMCPY_NAME) -#endif +# endif #endif |