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Pretty printing x86-64 SSE4.3 strcmp.

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This commit is contained in:
Ulrich Drepper
2010-07-30 12:54:37 -07:00
parent 42e08a5438
commit 66f6765a47
2 changed files with 31 additions and 29 deletions
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2
ChangeLog
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@@ -1,5 +1,7 @@
2010-07-30 Ulrich Drepper <drepper@redhat.com> 2010-07-30 Ulrich Drepper <drepper@redhat.com>
* sysdeps/x86_64/multiarch/strcmp.S: Pretty printing.
* string/Makefile (strop-tests): Add strcasecmp. * string/Makefile (strop-tests): Add strcasecmp.
* sysdeps/x86_64/Makefile [subdir=string] (sysdep_routines): Add * sysdeps/x86_64/Makefile [subdir=string] (sysdep_routines): Add
strcasecmp_l-nonascii. strcasecmp_l-nonascii.

58
sysdeps/x86_64/multiarch/strcmp.S
View File

@@ -1,5 +1,5 @@
/* strcmp with SSE4.2 /* strcmp with SSE4.2
Copyright (C) 2009 Free Software Foundation, Inc. Copyright (C) 2009, 2010 Free Software Foundation, Inc.
Contributed by Intel Corporation. Contributed by Intel Corporation.
This file is part of the GNU C Library. This file is part of the GNU C Library.
@@ -24,7 +24,7 @@
#ifdef USE_AS_STRNCMP #ifdef USE_AS_STRNCMP
/* Since the counter, %r11, is unsigned, we branch to strcmp_exitz /* Since the counter, %r11, is unsigned, we branch to strcmp_exitz
if the new counter > the old one or is 0. */ if the new counter > the old one or is 0. */
#define UPDATE_STRNCMP_COUNTER \ # define UPDATE_STRNCMP_COUNTER \
/* calculate left number to compare */ \ /* calculate left number to compare */ \
lea -16(%rcx, %r11), %r9; \ lea -16(%rcx, %r11), %r9; \
cmp %r9, %r11; \ cmp %r9, %r11; \
@@ -33,23 +33,23 @@
je LABEL(strcmp_exitz_sse4_2); \ je LABEL(strcmp_exitz_sse4_2); \
mov %r9, %r11 mov %r9, %r11
#define STRCMP_SSE42 __strncmp_sse42 # define STRCMP_SSE42 __strncmp_sse42
#define STRCMP_SSSE3 __strncmp_ssse3 # define STRCMP_SSSE3 __strncmp_ssse3
#define STRCMP_SSE2 __strncmp_sse2 # define STRCMP_SSE2 __strncmp_sse2
#define __GI_STRCMP __GI_strncmp # define __GI_STRCMP __GI_strncmp
#else #else
#define UPDATE_STRNCMP_COUNTER # define UPDATE_STRNCMP_COUNTER
#ifndef STRCMP # ifndef STRCMP
#define STRCMP strcmp # define STRCMP strcmp
#define STRCMP_SSE42 __strcmp_sse42 # define STRCMP_SSE42 __strcmp_sse42
#define STRCMP_SSSE3 __strcmp_ssse3 # define STRCMP_SSSE3 __strcmp_ssse3
#define STRCMP_SSE2 __strcmp_sse2 # define STRCMP_SSE2 __strcmp_sse2
#define __GI_STRCMP __GI_strcmp # define __GI_STRCMP __GI_strcmp
#endif # endif
#endif #endif
#ifndef LABEL #ifndef LABEL
#define LABEL(l) L(l) # define LABEL(l) L(l)
#endif #endif
/* Define multiple versions only for the definition in libc. Don't /* Define multiple versions only for the definition in libc. Don't
@@ -101,7 +101,7 @@ END(STRCMP)
/* Put all SSE 4.2 functions together. */ /* Put all SSE 4.2 functions together. */
.section .text.sse4.2,"ax",@progbits .section .text.sse4.2,"ax",@progbits
.align 16 .align 16
.type STRCMP_SSE42, @function .type STRCMP_SSE42, @function
STRCMP_SSE42: STRCMP_SSE42:
cfi_startproc cfi_startproc
@@ -241,7 +241,7 @@ LABEL(ashr_0_use_sse4_2_exit):
/* /*
* The following cases will be handled by ashr_1 * The following cases will be handled by ashr_1
* rcx(offset of rsi) rax(offset of rdi) relative offset corresponding case * rcx(offset of rsi) rax(offset of rdi) relative offset corresponding case
* n(15) n -15 0(15 +(n-15) - n) ashr_1 * n(15) n -15 0(15 +(n-15) - n) ashr_1
*/ */
.p2align 4 .p2align 4
@@ -320,7 +320,7 @@ LABEL(nibble_ashr_1_use_sse4_2):
/* /*
* The following cases will be handled by ashr_2 * The following cases will be handled by ashr_2
* rcx(offset of rsi) rax(offset of rdi) relative offset corresponding case * rcx(offset of rsi) rax(offset of rdi) relative offset corresponding case
* n(14~15) n -14 1(15 +(n-14) - n) ashr_2 * n(14~15) n -14 1(15 +(n-14) - n) ashr_2
*/ */
.p2align 4 .p2align 4
@@ -559,7 +559,7 @@ LABEL(nibble_ashr_4_use_sse4_2):
/* /*
* The following cases will be handled by ashr_5 * The following cases will be handled by ashr_5
* rcx(offset of rsi) rax(offset of rdi) relative offset corresponding case * rcx(offset of rsi) rax(offset of rdi) relative offset corresponding case
* n(11~15) n - 11 4(15 +(n-11) - n) ashr_5 * n(11~15) n - 11 4(15 +(n-11) - n) ashr_5
*/ */
.p2align 4 .p2align 4
LABEL(ashr_5_sse4_2): LABEL(ashr_5_sse4_2):
@@ -640,7 +640,7 @@ LABEL(nibble_ashr_5_use_sse4_2):
/* /*
* The following cases will be handled by ashr_6 * The following cases will be handled by ashr_6
* rcx(offset of rsi) rax(offset of rdi) relative offset corresponding case * rcx(offset of rsi) rax(offset of rdi) relative offset corresponding case
* n(10~15) n - 10 5(15 +(n-10) - n) ashr_6 * n(10~15) n - 10 5(15 +(n-10) - n) ashr_6
*/ */
.p2align 4 .p2align 4
LABEL(ashr_6_sse4_2): LABEL(ashr_6_sse4_2):
@@ -720,7 +720,7 @@ LABEL(nibble_ashr_6_use_sse4_2):
/* /*
* The following cases will be handled by ashr_7 * The following cases will be handled by ashr_7
* rcx(offset of rsi) rax(offset of rdi) relative offset corresponding case * rcx(offset of rsi) rax(offset of rdi) relative offset corresponding case
* n(9~15) n - 9 6(15 +(n - 9) - n) ashr_7 * n(9~15) n - 9 6(15 +(n - 9) - n) ashr_7
*/ */
.p2align 4 .p2align 4
LABEL(ashr_7_sse4_2): LABEL(ashr_7_sse4_2):
@@ -800,7 +800,7 @@ LABEL(nibble_ashr_7_use_sse4_2):
/* /*
* The following cases will be handled by ashr_8 * The following cases will be handled by ashr_8
* rcx(offset of rsi) rax(offset of rdi) relative offset corresponding case * rcx(offset of rsi) rax(offset of rdi) relative offset corresponding case
* n(8~15) n - 8 7(15 +(n - 8) - n) ashr_8 * n(8~15) n - 8 7(15 +(n - 8) - n) ashr_8
*/ */
.p2align 4 .p2align 4
LABEL(ashr_8_sse4_2): LABEL(ashr_8_sse4_2):
@@ -880,7 +880,7 @@ LABEL(nibble_ashr_8_use_sse4_2):
/* /*
* The following cases will be handled by ashr_9 * The following cases will be handled by ashr_9
* rcx(offset of rsi) rax(offset of rdi) relative offset corresponding case * rcx(offset of rsi) rax(offset of rdi) relative offset corresponding case
* n(7~15) n - 7 8(15 +(n - 7) - n) ashr_9 * n(7~15) n - 7 8(15 +(n - 7) - n) ashr_9
*/ */
.p2align 4 .p2align 4
LABEL(ashr_9_sse4_2): LABEL(ashr_9_sse4_2):
@@ -961,7 +961,7 @@ LABEL(nibble_ashr_9_use_sse4_2):
/* /*
* The following cases will be handled by ashr_10 * The following cases will be handled by ashr_10
* rcx(offset of rsi) rax(offset of rdi) relative offset corresponding case * rcx(offset of rsi) rax(offset of rdi) relative offset corresponding case
* n(6~15) n - 6 9(15 +(n - 6) - n) ashr_10 * n(6~15) n - 6 9(15 +(n - 6) - n) ashr_10
*/ */
.p2align 4 .p2align 4
LABEL(ashr_10_sse4_2): LABEL(ashr_10_sse4_2):
@@ -1041,7 +1041,7 @@ LABEL(nibble_ashr_10_use_sse4_2):
/* /*
* The following cases will be handled by ashr_11 * The following cases will be handled by ashr_11
* rcx(offset of rsi) rax(offset of rdi) relative offset corresponding case * rcx(offset of rsi) rax(offset of rdi) relative offset corresponding case
* n(5~15) n - 5 10(15 +(n - 5) - n) ashr_11 * n(5~15) n - 5 10(15 +(n - 5) - n) ashr_11
*/ */
.p2align 4 .p2align 4
LABEL(ashr_11_sse4_2): LABEL(ashr_11_sse4_2):
@@ -1121,7 +1121,7 @@ LABEL(nibble_ashr_11_use_sse4_2):
/* /*
* The following cases will be handled by ashr_12 * The following cases will be handled by ashr_12
* rcx(offset of rsi) rax(offset of rdi) relative offset corresponding case * rcx(offset of rsi) rax(offset of rdi) relative offset corresponding case
* n(4~15) n - 4 11(15 +(n - 4) - n) ashr_12 * n(4~15) n - 4 11(15 +(n - 4) - n) ashr_12
*/ */
.p2align 4 .p2align 4
LABEL(ashr_12_sse4_2): LABEL(ashr_12_sse4_2):
@@ -1201,7 +1201,7 @@ LABEL(nibble_ashr_12_use_sse4_2):
/* /*
* The following cases will be handled by ashr_13 * The following cases will be handled by ashr_13
* rcx(offset of rsi) rax(offset of rdi) relative offset corresponding case * rcx(offset of rsi) rax(offset of rdi) relative offset corresponding case
* n(3~15) n - 3 12(15 +(n - 3) - n) ashr_13 * n(3~15) n - 3 12(15 +(n - 3) - n) ashr_13
*/ */
.p2align 4 .p2align 4
LABEL(ashr_13_sse4_2): LABEL(ashr_13_sse4_2):
@@ -1282,7 +1282,7 @@ LABEL(nibble_ashr_13_use_sse4_2):
/* /*
* The following cases will be handled by ashr_14 * The following cases will be handled by ashr_14
* rcx(offset of rsi) rax(offset of rdi) relative offset corresponding case * rcx(offset of rsi) rax(offset of rdi) relative offset corresponding case
* n(2~15) n - 2 13(15 +(n - 2) - n) ashr_14 * n(2~15) n - 2 13(15 +(n - 2) - n) ashr_14
*/ */
.p2align 4 .p2align 4
LABEL(ashr_14_sse4_2): LABEL(ashr_14_sse4_2):
@@ -1363,7 +1363,7 @@ LABEL(nibble_ashr_14_use_sse4_2):
/* /*
* The following cases will be handled by ashr_15 * The following cases will be handled by ashr_15
* rcx(offset of rsi) rax(offset of rdi) relative offset corresponding case * rcx(offset of rsi) rax(offset of rdi) relative offset corresponding case
* n(1~15) n - 1 14(15 +(n - 1) - n) ashr_15 * n(1~15) n - 1 14(15 +(n - 1) - n) ashr_15
*/ */
.p2align 4 .p2align 4
LABEL(ashr_15_sse4_2): LABEL(ashr_15_sse4_2):