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longlong.h (__arm__): Define count_leading_zeros.

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2008-06-12  Paul Brook  <paul@codesourcery.com>

	gcc/
	* longlong.h (__arm__): Define count_leading_zeros.
	* config/arm/lib1funcs.asm (xxh, xxl, yyh, yyl): Define.
	(clzsi2, clzdi2): New functions.
	* config/arm/bpabi-v6m.S (xxh, xxl, yyh, yyl): Remove.
	* config/arm/bpabi.S (xxh, xxl, yyh, yyl): Remove.
	* config/arm/t-strongarm-elf (LIB1ASMFUNCS): Ditto.
	* config/arm/t-vxworks (LIB1ASMFUNCS): Ditto.
	* config/arm/t-pe (LIB1ASMFUNCS): Ditto.
	* config/arm/t-arm-elf (LIB1ASMFUNCS): Ditto.
	* config/arm/t-arm-coff (LIB1ASMFUNCS): Ditto.
	* config/arm/t-linux (LIB1ASMFUNCS): Ditto.
	* config/arm/t-symbian (LIB1ASMFUNCS): Ditto.
	* config/arm/t-wince-pe (LIB1ASMFUNCS): Ditto.

From-SVN: r136718
This commit is contained in:
Paul Brook 2008-06-12 17:29:47 +00:00 committed by Paul Brook
parent 01b79d1165
commit ef0a4b6738
13 changed files with 158 additions and 33 deletions
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16
gcc/ChangeLog
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@ -1,3 +1,19 @@
2008-06-12 Paul Brook <paul@codesourcery.com>
* longlong.h (__arm__): Define count_leading_zeros.
* config/arm/lib1funcs.asm (xxh, xxl, yyh, yyl): Define.
(clzsi2, clzdi2): New functions.
* config/arm/bpabi-v6m.S (xxh, xxl, yyh, yyl): Remove.
* config/arm/bpabi.S (xxh, xxl, yyh, yyl): Remove.
* config/arm/t-strongarm-elf (LIB1ASMFUNCS): Ditto.
* config/arm/t-vxworks (LIB1ASMFUNCS): Ditto.
* config/arm/t-pe (LIB1ASMFUNCS): Ditto.
* config/arm/t-arm-elf (LIB1ASMFUNCS): Ditto.
* config/arm/t-arm-coff (LIB1ASMFUNCS): Ditto.
* config/arm/t-linux (LIB1ASMFUNCS): Ditto.
* config/arm/t-symbian (LIB1ASMFUNCS): Ditto.
* config/arm/t-wince-pe (LIB1ASMFUNCS): Ditto.
2008-06-12 Kazu Hirata <kazu@codesourcery.com>
* config/m68k/m68k.c (m68k_tune_flags): New.

12
gcc/config/arm/bpabi-v6m.S
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@ -27,18 +27,6 @@
the Free Software Foundation, 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA. */
#ifdef __ARMEB__
#define xxh r0
#define xxl r1
#define yyh r2
#define yyl r3
#else
#define xxh r1
#define xxl r0
#define yyh r3
#define yyl r2
#endif
#ifdef L_aeabi_lcmp
FUNC_START aeabi_lcmp

12
gcc/config/arm/bpabi.S
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@ -27,18 +27,6 @@
the Free Software Foundation, 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA. */
#ifdef __ARMEB__
#define xxh r0
#define xxl r1
#define yyh r2
#define yyl r3
#else
#define xxh r1
#define xxl r0
#define yyh r3
#define yyl r2
#endif
#ifdef L_aeabi_lcmp
ARM_FUNC_START aeabi_lcmp

126
gcc/config/arm/lib1funcs.asm
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@ -406,6 +406,18 @@ SYM (__\name):
.endm
#endif
#ifdef __ARMEB__
#define xxh r0
#define xxl r1
#define yyh r2
#define yyl r3
#else
#define xxh r1
#define xxl r0
#define yyh r3
#define yyl r2
#endif
#ifdef __thumb__
/* Register aliases. */
@ -1212,6 +1224,120 @@ LSYM(Lover12):
#endif /* __symbian__ */
#if ((__ARM_ARCH__ > 5) && !defined(__ARM_ARCH_6M__)) \
|| defined(__ARM_ARCH_5E__) || defined(__ARM_ARCH_5TE__) \
|| defined(__ARM_ARCH_5TEJ__)
#define HAVE_ARM_CLZ 1
#endif
#ifdef L_clzsi2
#if defined(__ARM_ARCH_6M__)
FUNC_START clzsi2
mov r1, #28
mov r3, #1
lsl r3, r3, #16
cmp r0, r3 /* 0x10000 */
bcc 2f
lsr r0, r0, #16
sub r1, r1, #16
2: lsr r3, r3, #8
cmp r0, r3 /* #0x100 */
bcc 2f
lsr r0, r0, #8
sub r1, r1, #8
2: lsr r3, r3, #4
cmp r0, r3 /* #0x10 */
bcc 2f
lsr r0, r0, #4
sub r1, r1, #4
2: adr r2, 1f
ldrb r0, [r2, r0]
add r0, r0, r1
bx lr
.align 2
1:
.byte 4, 3, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0
FUNC_END clzsi2
#else
ARM_FUNC_START clzsi2
# if defined(HAVE_ARM_CLZ)
clz r0, r0
RET
# else
mov r1, #28
cmp r0, #0x10000
do_it cs, t
movcs r0, r0, lsr #16
subcs r1, r1, #16
cmp r0, #0x100
do_it cs, t
movcs r0, r0, lsr #8
subcs r1, r1, #8
cmp r0, #0x10
do_it cs, t
movcs r0, r0, lsr #4
subcs r1, r1, #4
adr r2, 1f
ldrb r0, [r2, r0]
add r0, r0, r1
bx lr
.align 2
1:
.byte 4, 3, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0
# endif /* !HAVE_ARM_CLZ */
FUNC_END clzsi2
#endif
#endif /* L_clzsi2 */
#ifdef L_clzdi2
#if !defined(HAVE_ARM_CLZ)
# if defined(__ARM_ARCH_6M__)
FUNC_START clzdi2
push {r4, lr}
# else
ARM_FUNC_START clzdi2
do_push {r4, lr}
# endif
cmp xxh, #0
bne 1f
# ifdef __ARMEB__
mov r0, xxl
bl __clzsi2
add r0, r0, #32
b 2f
1:
bl __clzsi2
# else
bl __clzsi2
add r0, r0, #32
b 2f
1:
mov r0, xxh
bl __clzsi2
# endif
2:
# if defined(__ARM_ARCH_6M__)
pop {r4, pc}
# else
RETLDM r4
# endif
FUNC_END clzdi2
#else /* HAVE_ARM_CLZ */
ARM_FUNC_START clzdi2
cmp xxh, #0
do_it eq, et
clzeq r0, xxl
clzne r0, xxh
addeq r0, r0, #32
RET
FUNC_END clzdi2
#endif
#endif /* L_clzdi2 */
/* ------------------------------------------------------------------------ */
/* These next two sections are here despite the fact that they contain Thumb
assembler because their presence allows interworked code to be linked even

2
gcc/config/arm/t-arm-coff
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@ -1,5 +1,5 @@
LIB1ASMSRC = arm/lib1funcs.asm
LIB1ASMFUNCS = _udivsi3 _divsi3 _umodsi3 _modsi3 _dvmd_tls _bb_init_func _call_via_rX _interwork_call_via_rX
LIB1ASMFUNCS = _udivsi3 _divsi3 _umodsi3 _modsi3 _dvmd_tls _bb_init_func _call_via_rX _interwork_call_via_rX clzsi2 _clzdi2
# We want fine grained libraries, so use the new code to build the
# floating point emulation libraries.

3
gcc/config/arm/t-arm-elf
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@ -10,7 +10,8 @@ LIB1ASMFUNCS = _udivsi3 _divsi3 _umodsi3 _modsi3 _dvmd_tls _bb_init_func \
_arm_fixdfsi _arm_fixunsdfsi \
_arm_truncdfsf2 _arm_negsf2 _arm_addsubsf3 _arm_muldivsf3 \
_arm_cmpsf2 _arm_unordsf2 _arm_fixsfsi _arm_fixunssfsi \
_arm_floatdidf _arm_floatdisf _arm_floatundidf _arm_floatundisf
_arm_floatdidf _arm_floatdisf _arm_floatundidf _arm_floatundisf \
_clzsi2 _clzdi2
MULTILIB_OPTIONS = marm/mthumb
MULTILIB_DIRNAMES = arm thumb

2
gcc/config/arm/t-linux
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@ -3,7 +3,7 @@
TARGET_LIBGCC2_CFLAGS = -fomit-frame-pointer -fPIC
LIB1ASMSRC = arm/lib1funcs.asm
LIB1ASMFUNCS = _udivsi3 _divsi3 _umodsi3 _modsi3 _dvmd_lnx
LIB1ASMFUNCS = _udivsi3 _divsi3 _umodsi3 _modsi3 _dvmd_lnx clzsi2 _clzdi2
# MULTILIB_OPTIONS = mhard-float/msoft-float
# MULTILIB_DIRNAMES = hard-float soft-float

4
gcc/config/arm/t-pe
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@ -1,5 +1,5 @@
LIB1ASMSRC = arm/lib1funcs.asm
LIB1ASMFUNCS = _udivsi3 _divsi3 _umodsi3 _modsi3 _dvmd_tls _call_via_rX _interwork_call_via_rX
LIB1ASMFUNCS = _udivsi3 _divsi3 _umodsi3 _modsi3 _dvmd_tls _call_via_rX _interwork_call_via_rX _clzsi2 _clzdi2
# We want fine grained libraries, so use the new code to build the
# floating point emulation libraries.
@ -29,4 +29,4 @@ MULTILIB_DIRNAMES = fpu thumb
LIBGCC = stmp-multilib
INSTALL_LIBGCC = install-multilib
TARGET_LIBGCC2_CFLAGS =
TARGET_LIBGCC2_CFLAGS =

2
gcc/config/arm/t-strongarm-elf
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@ -1,5 +1,5 @@
LIB1ASMSRC = arm/lib1funcs.asm
LIB1ASMFUNCS = _udivsi3 _divsi3 _umodsi3 _modsi3 _dvmd_tls _bb_init_func
LIB1ASMFUNCS = _udivsi3 _divsi3 _umodsi3 _modsi3 _dvmd_tls _bb_init_func _clzsi2 _clzdi2
# We want fine grained libraries, so use the new code to build the
# floating point emulation libraries.

2
gcc/config/arm/t-symbian
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@ -1,4 +1,4 @@
LIB1ASMFUNCS = _bb_init_func _call_via_rX _interwork_call_via_rX
LIB1ASMFUNCS = _bb_init_func _call_via_rX _interwork_call_via_rX _clzsi2 _clzdi2
# These functions have __aeabi equivalents and will never be called by GCC.
# By putting them in LIB1ASMFUNCS, we avoid the standard libgcc2.c code being

2
gcc/config/arm/t-vxworks
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@ -1,5 +1,5 @@
LIB1ASMSRC = arm/lib1funcs.asm
LIB1ASMFUNCS = _udivsi3 _divsi3 _umodsi3 _modsi3 _dvmd_tls _bb_init_func _call_via_rX _interwork_call_via_rX
LIB1ASMFUNCS = _udivsi3 _divsi3 _umodsi3 _modsi3 _dvmd_tls _bb_init_func _call_via_rX _interwork_call_via_rX _clzsi2 _clzdi2
# We want fine grained libraries, so use the new code to build the
# floating point emulation libraries.

2
gcc/config/arm/t-wince-pe
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@ -1,5 +1,5 @@
LIB1ASMSRC = arm/lib1funcs.asm
LIB1ASMFUNCS = _udivsi3 _divsi3 _umodsi3 _modsi3 _dvmd_tls _call_via_rX _interwork_call_via_rX
LIB1ASMFUNCS = _udivsi3 _divsi3 _umodsi3 _modsi3 _dvmd_tls _call_via_rX _interwork_call_via_rX _clzsi2 _clzdi2
# We want fine grained libraries, so use the new code to build the
# floating point emulation libraries.

6
gcc/longlong.h
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@ -226,6 +226,12 @@ UDItype __umulsidi3 (USItype, USItype);
#define UDIV_TIME 100
#endif /* __arm__ */
#if defined(__arm__)
/* Let gcc decide how best to implement count_leading_zeros. */
#define count_leading_zeros(COUNT,X) ((COUNT) = __builtin_clz (X))
#define COUNT_LEADING_ZEROS_0 32
#endif
#if defined (__CRIS__) && __CRIS_arch_version >= 3
#define count_leading_zeros(COUNT, X) ((COUNT) = __builtin_clz (X))
#if __CRIS_arch_version >= 8