diff options
author | Ulrich Drepper <drepper@redhat.com> | 2010-07-31 21:41:09 -0700 |
---|---|---|
committer | Ulrich Drepper <drepper@redhat.com> | 2010-07-31 21:41:09 -0700 |
commit | 73507d3ae077c2dcf0da857a5a244deff3d4d223 (patch) | |
tree | 0a6b1d0c944ded9e269b8c47f802d0a920186a7e /sysdeps/x86_64/multiarch | |
parent | 66f6765a472452937fa821d6c30e2396e113bd60 (diff) | |
download | glibc-73507d3ae077c2dcf0da857a5a244deff3d4d223.tar.gz glibc-73507d3ae077c2dcf0da857a5a244deff3d4d223.tar.xz glibc-73507d3ae077c2dcf0da857a5a244deff3d4d223.zip |
Add support for SSSE3 and SSE4.2 versions of strcasecmp on x86-64.
Diffstat (limited to 'sysdeps/x86_64/multiarch')
-rw-r--r-- | sysdeps/x86_64/multiarch/Makefile | 2 | ||||
-rw-r--r-- | sysdeps/x86_64/multiarch/strcasecmp_l-ssse3.S | 5 | ||||
-rw-r--r-- | sysdeps/x86_64/multiarch/strcasecmp_l.S | 6 | ||||
-rw-r--r-- | sysdeps/x86_64/multiarch/strcmp.S | 380 |
4 files changed, 373 insertions, 20 deletions
diff --git a/sysdeps/x86_64/multiarch/Makefile b/sysdeps/x86_64/multiarch/Makefile index f1251a0a50..5113dc1ce2 100644 --- a/sysdeps/x86_64/multiarch/Makefile +++ b/sysdeps/x86_64/multiarch/Makefile @@ -7,7 +7,7 @@ ifeq ($(subdir),string) sysdep_routines += stpncpy-c strncpy-c strcmp-ssse3 strncmp-ssse3 \ strend-sse4 memcmp-sse4 memcpy-ssse3 mempcpy-ssse3 \ memmove-ssse3 memcpy-ssse3-back mempcpy-ssse3-back \ - memmove-ssse3-back strcasestr-nonascii + memmove-ssse3-back strcasestr-nonascii strcasecmp_l-ssse3 ifeq (yes,$(config-cflags-sse4)) sysdep_routines += strcspn-c strpbrk-c strspn-c strstr-c strcasestr-c CFLAGS-strcspn-c.c += -msse4 diff --git a/sysdeps/x86_64/multiarch/strcasecmp_l-ssse3.S b/sysdeps/x86_64/multiarch/strcasecmp_l-ssse3.S new file mode 100644 index 0000000000..bc0eb5babd --- /dev/null +++ b/sysdeps/x86_64/multiarch/strcasecmp_l-ssse3.S @@ -0,0 +1,5 @@ +#define USE_SSSE3 1 +#define USE_AS_STRCASECMP_L +#define STRCMP __strcasecmp_l_ssse3 +#define __strcasecmp __strcasecmp_ssse3 +#include "../strcmp.S" diff --git a/sysdeps/x86_64/multiarch/strcasecmp_l.S b/sysdeps/x86_64/multiarch/strcasecmp_l.S new file mode 100644 index 0000000000..5456b3a49e --- /dev/null +++ b/sysdeps/x86_64/multiarch/strcasecmp_l.S @@ -0,0 +1,6 @@ +#define STRCMP __strcasecmp_l +#define USE_AS_STRCASECMP_L +#include "strcmp.S" + +weak_alias (__strcasecmp_l, strcasecmp_l) +libc_hidden_def (strcasecmp_l) diff --git a/sysdeps/x86_64/multiarch/strcmp.S b/sysdeps/x86_64/multiarch/strcmp.S index 2de119106c..3726dbe4d0 100644 --- a/sysdeps/x86_64/multiarch/strcmp.S +++ b/sysdeps/x86_64/multiarch/strcmp.S @@ -37,6 +37,15 @@ # define STRCMP_SSSE3 __strncmp_ssse3 # define STRCMP_SSE2 __strncmp_sse2 # define __GI_STRCMP __GI_strncmp +#elif defined USE_AS_STRCASECMP_L +# include "locale-defines.h" + +# define UPDATE_STRNCMP_COUNTER + +# define STRCMP_SSE42 __strcasecmp_l_sse42 +# define STRCMP_SSSE3 __strcasecmp_l_ssse3 +# define STRCMP_SSE2 __strcasecmp_l_sse2 +# define __GI_STRCMP __GI___strcasecmp_l #else # define UPDATE_STRNCMP_COUNTER # ifndef STRCMP @@ -73,6 +82,25 @@ ENTRY(STRCMP) 2: ret END(STRCMP) +# ifdef USE_AS_STRCASECMP_L +ENTRY(__strcasecmp) + .type __strcasecmp, @gnu_indirect_function + cmpl $0, __cpu_features+KIND_OFFSET(%rip) + jne 1f + call __init_cpu_features +1: + leaq __strcasecmp_sse42(%rip), %rax + testl $bit_SSE4_2, __cpu_features+CPUID_OFFSET+index_SSE4_2(%rip) + jnz 2f + leaq __strcasecmp_ssse3(%rip), %rax + testl $bit_SSSE3, __cpu_features+CPUID_OFFSET+index_SSSE3(%rip) + jnz 2f + leaq __strcasecmp_sse2(%rip), %rax +2: ret +END(__strcasecmp) +weak_alias (__strcasecmp, strcasecmp) +# endif + /* We use 0x1a: _SIDD_SBYTE_OPS | _SIDD_CMP_EQUAL_EACH @@ -103,6 +131,16 @@ END(STRCMP) .section .text.sse4.2,"ax",@progbits .align 16 .type STRCMP_SSE42, @function +#ifdef USE_AS_STRCASECMP_L + /* 5-byte NOP. */ + .byte 0x0f,0x1f,0x44,0x00,0x00 +ENTRY (__strcasecmp_sse42) + movq __libc_tsd_LOCALE@gottpoff(%rip),%rax + movq %fs:(%rax),%rdx +END (__strcasecmp_sse42) + /* FALLTHROUGH to strcasecmp_l. */ +#endif + STRCMP_SSE42: cfi_startproc CALL_MCOUNT @@ -110,6 +148,18 @@ STRCMP_SSE42: /* * This implementation uses SSE to compare up to 16 bytes at a time. */ +#ifdef USE_AS_STRCASECMP_L + /* We have to fall back on the C implementation for locales + with encodings not matching ASCII for single bytes. */ +# if LOCALE_T___LOCALES != 0 || LC_CTYPE != 0 + movq LOCALE_T___LOCALES+LC_CTYPE*8(%rdx), %rax +# else + movq (%rdx), %rax +# endif + testl $0, LOCALE_DATA_VALUES+_NL_CTYPE_NONASCII_CASE*SIZEOF_VALUES(%rax) + jne __strcasecmp_l_nonascii +#endif + #ifdef USE_AS_STRNCMP test %rdx, %rdx je LABEL(strcmp_exitz_sse4_2) @@ -122,12 +172,52 @@ STRCMP_SSE42: /* Use 64bit AND here to avoid long NOP padding. */ and $0x3f, %rcx /* rsi alignment in cache line */ and $0x3f, %rax /* rdi alignment in cache line */ +#ifdef USE_AS_STRCASECMP_L + .section .rodata.cst16,"aM",@progbits,16 + .align 16 +.Lbelowupper_sse4: + .quad 0x4040404040404040 + .quad 0x4040404040404040 +.Ltopupper_sse4: + .quad 0x5b5b5b5b5b5b5b5b + .quad 0x5b5b5b5b5b5b5b5b +.Ltouppermask_sse4: + .quad 0x2020202020202020 + .quad 0x2020202020202020 + .previous + movdqa .Lbelowupper_sse4(%rip), %xmm4 +# define UCLOW_reg %xmm4 + movdqa .Ltopupper_sse4(%rip), %xmm5 +# define UCHIGH_reg %xmm5 + movdqa .Ltouppermask_sse4(%rip), %xmm6 +# define LCQWORD_reg %xmm6 +#endif cmp $0x30, %ecx ja LABEL(crosscache_sse4_2)/* rsi: 16-byte load will cross cache line */ cmp $0x30, %eax ja LABEL(crosscache_sse4_2)/* rdi: 16-byte load will cross cache line */ movdqu (%rdi), %xmm1 movdqu (%rsi), %xmm2 +# ifdef USE_AS_STRCASECMP_L +# define TOLOWER(reg1, reg2) \ + movdqa reg1, %xmm7; \ + movdqa UCHIGH_reg, %xmm8; \ + movdqa reg2, %xmm9; \ + movdqa UCHIGH_reg, %xmm10; \ + pcmpgtb UCLOW_reg, %xmm7; \ + pcmpgtb reg1, %xmm8; \ + pcmpgtb UCLOW_reg, %xmm9; \ + pcmpgtb reg2, %xmm10; \ + pand %xmm8, %xmm7; \ + pand %xmm10, %xmm9; \ + pand LCQWORD_reg, %xmm7; \ + pand LCQWORD_reg, %xmm9; \ + por %xmm7, reg1; \ + por %xmm9, reg2 + TOLOWER (%xmm1, %xmm2) +# else +# define TOLOWER(reg1, reg2) +# endif pxor %xmm0, %xmm0 /* clear %xmm0 for null char checks */ pcmpeqb %xmm1, %xmm0 /* Any null chars? */ pcmpeqb %xmm2, %xmm1 /* compare first 16 bytes for equality */ @@ -180,7 +270,13 @@ LABEL(ashr_0_sse4_2): movdqa (%rsi), %xmm1 pxor %xmm0, %xmm0 /* clear %xmm0 for null char check */ pcmpeqb %xmm1, %xmm0 /* Any null chars? */ +#ifndef USE_AS_STRCASECMP_L pcmpeqb (%rdi), %xmm1 /* compare 16 bytes for equality */ +#else + movdqa (%rdi), %xmm2 + TOLOWER (%xmm1, %xmm2) + pcmpeqb %xmm2, %xmm1 /* compare 16 bytes for equality */ +#endif psubb %xmm0, %xmm1 /* packed sub of comparison results*/ pmovmskb %xmm1, %r9d shr %cl, %edx /* adjust 0xffff for offset */ @@ -204,7 +300,13 @@ LABEL(ashr_0_sse4_2): .p2align 4 LABEL(ashr_0_use_sse4_2): movdqa (%rdi,%rdx), %xmm0 +#ifndef USE_AS_STRCASECMP_L pcmpistri $0x1a,(%rsi,%rdx), %xmm0 +#else + movdqa (%rsi,%rdx), %xmm1 + TOLOWER (%xmm0, %xmm1) + pcmpistri $0x1a, %xmm1, %xmm0 +#endif lea 16(%rdx), %rdx jbe LABEL(ashr_0_use_sse4_2_exit) #ifdef USE_AS_STRNCMP @@ -213,7 +315,13 @@ LABEL(ashr_0_use_sse4_2): #endif movdqa (%rdi,%rdx), %xmm0 +#ifndef USE_AS_STRCASECMP_L pcmpistri $0x1a,(%rsi,%rdx), %xmm0 +#else + movdqa (%rsi,%rdx), %xmm1 + TOLOWER (%xmm0, %xmm1) + pcmpistri $0x1a, %xmm1, %xmm0 +#endif lea 16(%rdx), %rdx jbe LABEL(ashr_0_use_sse4_2_exit) #ifdef USE_AS_STRNCMP @@ -233,12 +341,16 @@ LABEL(ashr_0_use_sse4_2_exit): lea -16(%rdx, %rcx), %rcx movzbl (%rdi, %rcx), %eax movzbl (%rsi, %rcx), %edx +# ifdef USE_AS_STRCASECMP_L + leaq _nl_C_LC_CTYPE_tolower+128*4(%rip), %rcx + movl (%rcx,%rax,4), %eax + movl (%rcx,%rdx,4), %edx +# endif sub %edx, %eax ret - /* * The following cases will be handled by ashr_1 * rcx(offset of rsi) rax(offset of rdi) relative offset corresponding case @@ -251,6 +363,7 @@ LABEL(ashr_1_sse4_2): movdqa (%rsi), %xmm1 pcmpeqb %xmm1, %xmm0 /* Any null chars? */ pslldq $15, %xmm2 /* shift first string to align with second */ + TOLOWER (%xmm1, %xmm2) pcmpeqb %xmm1, %xmm2 /* compare 16 bytes for equality */ psubb %xmm0, %xmm2 /* packed sub of comparison results*/ pmovmskb %xmm2, %r9d @@ -281,7 +394,13 @@ LABEL(loop_ashr_1_use_sse4_2): movdqa (%rdi, %rdx), %xmm0 palignr $1, -16(%rdi, %rdx), %xmm0 +#ifndef USE_AS_STRCASECMP_L pcmpistri $0x1a,(%rsi,%rdx), %xmm0 +#else + movdqa (%rsi,%rdx), %xmm1 + TOLOWER (%xmm0, %xmm1) + pcmpistri $0x1a, %xmm1, %xmm0 +#endif jbe LABEL(use_sse4_2_exit) #ifdef USE_AS_STRNCMP sub $16, %r11 @@ -294,7 +413,13 @@ LABEL(loop_ashr_1_use_sse4_2): movdqa (%rdi, %rdx), %xmm0 palignr $1, -16(%rdi, %rdx), %xmm0 +#ifndef USE_AS_STRCASECMP_L pcmpistri $0x1a,(%rsi,%rdx), %xmm0 +#else + movdqa (%rsi,%rdx), %xmm1 + TOLOWER (%xmm0, %xmm1) + pcmpistri $0x1a, %xmm1, %xmm0 +#endif jbe LABEL(use_sse4_2_exit) #ifdef USE_AS_STRNCMP sub $16, %r11 @@ -330,6 +455,7 @@ LABEL(ashr_2_sse4_2): movdqa (%rsi), %xmm1 pcmpeqb %xmm1, %xmm0 pslldq $14, %xmm2 + TOLOWER (%xmm1, %xmm2) pcmpeqb %xmm1, %xmm2 psubb %xmm0, %xmm2 pmovmskb %xmm2, %r9d @@ -360,7 +486,13 @@ LABEL(loop_ashr_2_use_sse4_2): movdqa (%rdi, %rdx), %xmm0 palignr $2, -16(%rdi, %rdx), %xmm0 +#ifndef USE_AS_STRCASECMP_L pcmpistri $0x1a,(%rsi,%rdx), %xmm0 +#else + movdqa (%rsi,%rdx), %xmm1 + TOLOWER (%xmm0, %xmm1) + pcmpistri $0x1a, %xmm1, %xmm0 +#endif jbe LABEL(use_sse4_2_exit) #ifdef USE_AS_STRNCMP sub $16, %r11 @@ -373,7 +505,13 @@ LABEL(loop_ashr_2_use_sse4_2): movdqa (%rdi, %rdx), %xmm0 palignr $2, -16(%rdi, %rdx), %xmm0 +#ifndef USE_AS_STRCASECMP_L pcmpistri $0x1a,(%rsi,%rdx), %xmm0 +#else + movdqa (%rsi,%rdx), %xmm1 + TOLOWER (%xmm0, %xmm1) + pcmpistri $0x1a, %xmm1, %xmm0 +#endif jbe LABEL(use_sse4_2_exit) #ifdef USE_AS_STRNCMP sub $16, %r11 @@ -409,6 +547,7 @@ LABEL(ashr_3_sse4_2): movdqa (%rsi), %xmm1 pcmpeqb %xmm1, %xmm0 pslldq $13, %xmm2 + TOLOWER (%xmm1, %xmm2) pcmpeqb %xmm1, %xmm2 psubb %xmm0, %xmm2 pmovmskb %xmm2, %r9d @@ -439,7 +578,13 @@ LABEL(loop_ashr_3_use_sse4_2): movdqa (%rdi, %rdx), %xmm0 palignr $3, -16(%rdi, %rdx), %xmm0 +#ifndef USE_AS_STRCASECMP_L pcmpistri $0x1a,(%rsi,%rdx), %xmm0 +#else + movdqa (%rsi,%rdx), %xmm1 + TOLOWER (%xmm0, %xmm1) + pcmpistri $0x1a, %xmm1, %xmm0 +#endif jbe LABEL(use_sse4_2_exit) #ifdef USE_AS_STRNCMP sub $16, %r11 @@ -452,7 +597,13 @@ LABEL(loop_ashr_3_use_sse4_2): movdqa (%rdi, %rdx), %xmm0 palignr $3, -16(%rdi, %rdx), %xmm0 +#ifndef USE_AS_STRCASECMP_L pcmpistri $0x1a,(%rsi,%rdx), %xmm0 +#else + movdqa (%rsi,%rdx), %xmm1 + TOLOWER (%xmm0, %xmm1) + pcmpistri $0x1a, %xmm1, %xmm0 +#endif jbe LABEL(use_sse4_2_exit) #ifdef USE_AS_STRNCMP sub $16, %r11 @@ -488,6 +639,7 @@ LABEL(ashr_4_sse4_2): movdqa (%rsi), %xmm1 pcmpeqb %xmm1, %xmm0 pslldq $12, %xmm2 + TOLOWER (%xmm1, %xmm2) pcmpeqb %xmm1, %xmm2 psubb %xmm0, %xmm2 pmovmskb %xmm2, %r9d @@ -519,7 +671,13 @@ LABEL(loop_ashr_4_use_sse4_2): movdqa (%rdi, %rdx), %xmm0 palignr $4, -16(%rdi, %rdx), %xmm0 +#ifndef USE_AS_STRCASECMP_L pcmpistri $0x1a,(%rsi,%rdx), %xmm0 +#else + movdqa (%rsi,%rdx), %xmm1 + TOLOWER (%xmm0, %xmm1) + pcmpistri $0x1a, %xmm1, %xmm0 +#endif jbe LABEL(use_sse4_2_exit) #ifdef USE_AS_STRNCMP sub $16, %r11 @@ -532,7 +690,13 @@ LABEL(loop_ashr_4_use_sse4_2): movdqa (%rdi, %rdx), %xmm0 palignr $4, -16(%rdi, %rdx), %xmm0 +#ifndef USE_AS_STRCASECMP_L pcmpistri $0x1a,(%rsi,%rdx), %xmm0 +#else + movdqa (%rsi,%rdx), %xmm1 + TOLOWER (%xmm0, %xmm1) + pcmpistri $0x1a, %xmm1, %xmm0 +#endif jbe LABEL(use_sse4_2_exit) #ifdef USE_AS_STRNCMP sub $16, %r11 @@ -568,6 +732,7 @@ LABEL(ashr_5_sse4_2): movdqa (%rsi), %xmm1 pcmpeqb %xmm1, %xmm0 pslldq $11, %xmm2 + TOLOWER (%xmm1, %xmm2) pcmpeqb %xmm1, %xmm2 psubb %xmm0, %xmm2 pmovmskb %xmm2, %r9d @@ -599,7 +764,13 @@ LABEL(loop_ashr_5_use_sse4_2): movdqa (%rdi, %rdx), %xmm0 palignr $5, -16(%rdi, %rdx), %xmm0 +#ifndef USE_AS_STRCASECMP_L pcmpistri $0x1a,(%rsi,%rdx), %xmm0 +#else + movdqa (%rsi,%rdx), %xmm1 + TOLOWER (%xmm0, %xmm1) + pcmpistri $0x1a, %xmm1, %xmm0 +#endif jbe LABEL(use_sse4_2_exit) #ifdef USE_AS_STRNCMP sub $16, %r11 @@ -613,7 +784,13 @@ LABEL(loop_ashr_5_use_sse4_2): movdqa (%rdi, %rdx), %xmm0 palignr $5, -16(%rdi, %rdx), %xmm0 +#ifndef USE_AS_STRCASECMP_L pcmpistri $0x1a,(%rsi,%rdx), %xmm0 +#else + movdqa (%rsi,%rdx), %xmm1 + TOLOWER (%xmm0, %xmm1) + pcmpistri $0x1a, %xmm1, %xmm0 +#endif jbe LABEL(use_sse4_2_exit) #ifdef USE_AS_STRNCMP sub $16, %r11 @@ -649,6 +826,7 @@ LABEL(ashr_6_sse4_2): movdqa (%rsi), %xmm1 pcmpeqb %xmm1, %xmm0 pslldq $10, %xmm2 + TOLOWER (%xmm1, %xmm2) pcmpeqb %xmm1, %xmm2 psubb %xmm0, %xmm2 pmovmskb %xmm2, %r9d @@ -680,7 +858,13 @@ LABEL(loop_ashr_6_use_sse4_2): movdqa (%rdi, %rdx), %xmm0 palignr $6, -16(%rdi, %rdx), %xmm0 - pcmpistri $0x1a,(%rsi,%rdx), %xmm0 +#ifndef USE_AS_STRCASECMP_L + pcmpistri $0x1a,(%rsi,%rdx), %xmm0 +#else + movdqa (%rsi,%rdx), %xmm1 + TOLOWER (%xmm0, %xmm1) + pcmpistri $0x1a, %xmm1, %xmm0 +#endif jbe LABEL(use_sse4_2_exit) #ifdef USE_AS_STRNCMP sub $16, %r11 @@ -693,7 +877,13 @@ LABEL(loop_ashr_6_use_sse4_2): movdqa (%rdi, %rdx), %xmm0 palignr $6, -16(%rdi, %rdx), %xmm0 - pcmpistri $0x1a,(%rsi,%rdx), %xmm0 +#ifndef USE_AS_STRCASECMP_L + pcmpistri $0x1a,(%rsi,%rdx), %xmm0 +#else + movdqa (%rsi,%rdx), %xmm1 + TOLOWER (%xmm0, %xmm1) + pcmpistri $0x1a, %xmm1, %xmm0 +#endif jbe LABEL(use_sse4_2_exit) #ifdef USE_AS_STRNCMP sub $16, %r11 @@ -729,6 +919,7 @@ LABEL(ashr_7_sse4_2): movdqa (%rsi), %xmm1 pcmpeqb %xmm1, %xmm0 pslldq $9, %xmm2 + TOLOWER (%xmm1, %xmm2) pcmpeqb %xmm1, %xmm2 psubb %xmm0, %xmm2 pmovmskb %xmm2, %r9d @@ -760,7 +951,13 @@ LABEL(loop_ashr_7_use_sse4_2): movdqa (%rdi, %rdx), %xmm0 palignr $7, -16(%rdi, %rdx), %xmm0 +#ifndef USE_AS_STRCASECMP_L pcmpistri $0x1a,(%rsi,%rdx), %xmm0 +#else + movdqa (%rsi,%rdx), %xmm1 + TOLOWER (%xmm0, %xmm1) + pcmpistri $0x1a, %xmm1, %xmm0 +#endif jbe LABEL(use_sse4_2_exit) #ifdef USE_AS_STRNCMP sub $16, %r11 @@ -773,7 +970,13 @@ LABEL(loop_ashr_7_use_sse4_2): movdqa (%rdi, %rdx), %xmm0 palignr $7, -16(%rdi, %rdx), %xmm0 +#ifndef USE_AS_STRCASECMP_L pcmpistri $0x1a,(%rsi,%rdx), %xmm0 +#else + movdqa (%rsi,%rdx), %xmm1 + TOLOWER (%xmm0, %xmm1) + pcmpistri $0x1a, %xmm1, %xmm0 +#endif jbe LABEL(use_sse4_2_exit) #ifdef USE_AS_STRNCMP sub $16, %r11 @@ -809,6 +1012,7 @@ LABEL(ashr_8_sse4_2): movdqa (%rsi), %xmm1 pcmpeqb %xmm1, %xmm0 pslldq $8, %xmm2 + TOLOWER (%xmm1, %xmm2) pcmpeqb %xmm1, %xmm2 psubb %xmm0, %xmm2 pmovmskb %xmm2, %r9d @@ -840,7 +1044,13 @@ LABEL(loop_ashr_8_use_sse4_2): movdqa (%rdi, %rdx), %xmm0 palignr $8, -16(%rdi, %rdx), %xmm0 - pcmpistri $0x1a,(%rsi,%rdx), %xmm0 +#ifndef USE_AS_STRCASECMP_L + pcmpistri $0x1a, (%rsi,%rdx), %xmm0 +#else + movdqa (%rsi,%rdx), %xmm1 + TOLOWER (%xmm0, %xmm1) + pcmpistri $0x1a, %xmm1, %xmm0 +#endif jbe LABEL(use_sse4_2_exit) #ifdef USE_AS_STRNCMP sub $16, %r11 @@ -853,7 +1063,13 @@ LABEL(loop_ashr_8_use_sse4_2): movdqa (%rdi, %rdx), %xmm0 palignr $8, -16(%rdi, %rdx), %xmm0 - pcmpistri $0x1a,(%rsi,%rdx), %xmm0 +#ifndef USE_AS_STRCASECMP_L + pcmpistri $0x1a, (%rsi,%rdx), %xmm0 +#else + movdqa (%rsi,%rdx), %xmm1 + TOLOWER (%xmm0, %xmm1) + pcmpistri $0x1a, %xmm1, %xmm0 +#endif jbe LABEL(use_sse4_2_exit) #ifdef USE_AS_STRNCMP sub $16, %r11 @@ -889,6 +1105,7 @@ LABEL(ashr_9_sse4_2): movdqa (%rsi), %xmm1 pcmpeqb %xmm1, %xmm0 pslldq $7, %xmm2 + TOLOWER (%xmm1, %xmm2) pcmpeqb %xmm1, %xmm2 psubb %xmm0, %xmm2 pmovmskb %xmm2, %r9d @@ -921,7 +1138,13 @@ LABEL(loop_ashr_9_use_sse4_2): movdqa (%rdi, %rdx), %xmm0 palignr $9, -16(%rdi, %rdx), %xmm0 - pcmpistri $0x1a,(%rsi,%rdx), %xmm0 +#ifndef USE_AS_STRCASECMP_L + pcmpistri $0x1a, (%rsi,%rdx), %xmm0 +#else + movdqa (%rsi,%rdx), %xmm1 + TOLOWER (%xmm0, %xmm1) + pcmpistri $0x1a, %xmm1, %xmm0 +#endif jbe LABEL(use_sse4_2_exit) #ifdef USE_AS_STRNCMP sub $16, %r11 @@ -934,7 +1157,13 @@ LABEL(loop_ashr_9_use_sse4_2): movdqa (%rdi, %rdx), %xmm0 palignr $9, -16(%rdi, %rdx), %xmm0 - pcmpistri $0x1a,(%rsi,%rdx), %xmm0 +#ifndef USE_AS_STRCASECMP_L + pcmpistri $0x1a, (%rsi,%rdx), %xmm0 +#else + movdqa (%rsi,%rdx), %xmm1 + TOLOWER (%xmm0, %xmm1) + pcmpistri $0x1a, %xmm1, %xmm0 +#endif jbe LABEL(use_sse4_2_exit) #ifdef USE_AS_STRNCMP sub $16, %r11 @@ -970,6 +1199,7 @@ LABEL(ashr_10_sse4_2): movdqa (%rsi), %xmm1 pcmpeqb %xmm1, %xmm0 pslldq $6, %xmm2 + TOLOWER (%xmm1, %xmm2) pcmpeqb %xmm1, %xmm2 psubb %xmm0, %xmm2 pmovmskb %xmm2, %r9d @@ -1001,7 +1231,13 @@ LABEL(loop_ashr_10_use_sse4_2): movdqa (%rdi, %rdx), %xmm0 palignr $10, -16(%rdi, %rdx), %xmm0 - pcmpistri $0x1a,(%rsi,%rdx), %xmm0 +#ifndef USE_AS_STRCASECMP_L + pcmpistri $0x1a, (%rsi,%rdx), %xmm0 +#else + movdqa (%rsi,%rdx), %xmm1 + TOLOWER (%xmm0, %xmm1) + pcmpistri $0x1a, %xmm1, %xmm0 +#endif jbe LABEL(use_sse4_2_exit) #ifdef USE_AS_STRNCMP sub $16, %r11 @@ -1014,7 +1250,13 @@ LABEL(loop_ashr_10_use_sse4_2): movdqa (%rdi, %rdx), %xmm0 palignr $10, -16(%rdi, %rdx), %xmm0 - pcmpistri $0x1a,(%rsi,%rdx), %xmm0 +#ifndef USE_AS_STRCASECMP_L + pcmpistri $0x1a, (%rsi,%rdx), %xmm0 +#else + movdqa (%rsi,%rdx), %xmm1 + TOLOWER (%xmm0, %xmm1) + pcmpistri $0x1a, %xmm1, %xmm0 +#endif jbe LABEL(use_sse4_2_exit) #ifdef USE_AS_STRNCMP sub $16, %r11 @@ -1050,6 +1292,7 @@ LABEL(ashr_11_sse4_2): movdqa (%rsi), %xmm1 pcmpeqb %xmm1, %xmm0 pslldq $5, %xmm2 + TOLOWER (%xmm1, %xmm2) pcmpeqb %xmm1, %xmm2 psubb %xmm0, %xmm2 pmovmskb %xmm2, %r9d @@ -1081,7 +1324,13 @@ LABEL(loop_ashr_11_use_sse4_2): movdqa (%rdi, %rdx), %xmm0 palignr $11, -16(%rdi, %rdx), %xmm0 - pcmpistri $0x1a,(%rsi,%rdx), %xmm0 +#ifndef USE_AS_STRCASECMP_L + pcmpistri $0x1a, (%rsi,%rdx), %xmm0 +#else + movdqa (%rsi,%rdx), %xmm1 + TOLOWER (%xmm0, %xmm1) + pcmpistri $0x1a, %xmm1, %xmm0 +#endif jbe LABEL(use_sse4_2_exit) #ifdef USE_AS_STRNCMP sub $16, %r11 @@ -1094,7 +1343,13 @@ LABEL(loop_ashr_11_use_sse4_2): movdqa (%rdi, %rdx), %xmm0 palignr $11, -16(%rdi, %rdx), %xmm0 - pcmpistri $0x1a,(%rsi,%rdx), %xmm0 +#ifndef USE_AS_STRCASECMP_L + pcmpistri $0x1a, (%rsi,%rdx), %xmm0 +#else + movdqa (%rsi,%rdx), %xmm1 + TOLOWER (%xmm0, %xmm1) + pcmpistri $0x1a, %xmm1, %xmm0 +#endif jbe LABEL(use_sse4_2_exit) #ifdef USE_AS_STRNCMP sub $16, %r11 @@ -1130,6 +1385,7 @@ LABEL(ashr_12_sse4_2): movdqa (%rsi), %xmm1 pcmpeqb %xmm1, %xmm0 pslldq $4, %xmm2 + TOLOWER (%xmm1, %xmm2) pcmpeqb %xmm1, %xmm2 psubb %xmm0, %xmm2 pmovmskb %xmm2, %r9d @@ -1161,7 +1417,13 @@ LABEL(loop_ashr_12_use_sse4_2): movdqa (%rdi, %rdx), %xmm0 palignr $12, -16(%rdi, %rdx), %xmm0 - pcmpistri $0x1a,(%rsi,%rdx), %xmm0 +#ifndef USE_AS_STRCASECMP_L + pcmpistri $0x1a, (%rsi,%rdx), %xmm0 +#else + movdqa (%rsi,%rdx), %xmm1 + TOLOWER (%xmm0, %xmm1) + pcmpistri $0x1a, %xmm1, %xmm0 +#endif jbe LABEL(use_sse4_2_exit) #ifdef USE_AS_STRNCMP sub $16, %r11 @@ -1174,7 +1436,13 @@ LABEL(loop_ashr_12_use_sse4_2): movdqa (%rdi, %rdx), %xmm0 palignr $12, -16(%rdi, %rdx), %xmm0 - pcmpistri $0x1a,(%rsi,%rdx), %xmm0 +#ifndef USE_AS_STRCASECMP_L + pcmpistri $0x1a, (%rsi,%rdx), %xmm0 +#else + movdqa (%rsi,%rdx), %xmm1 + TOLOWER (%xmm0, %xmm1) + pcmpistri $0x1a, %xmm1, %xmm0 +#endif jbe LABEL(use_sse4_2_exit) #ifdef USE_AS_STRNCMP sub $16, %r11 @@ -1210,6 +1478,7 @@ LABEL(ashr_13_sse4_2): movdqa (%rsi), %xmm1 pcmpeqb %xmm1, %xmm0 pslldq $3, %xmm2 + TOLOWER (%xmm1, %xmm2) pcmpeqb %xmm1, %xmm2 psubb %xmm0, %xmm2 pmovmskb %xmm2, %r9d @@ -1242,7 +1511,13 @@ LABEL(loop_ashr_13_use_sse4_2): movdqa (%rdi, %rdx), %xmm0 palignr $13, -16(%rdi, %rdx), %xmm0 - pcmpistri $0x1a,(%rsi,%rdx), %xmm0 +#ifndef USE_AS_STRCASECMP_L + pcmpistri $0x1a, (%rsi,%rdx), %xmm0 +#else + movdqa (%rsi,%rdx), %xmm1 + TOLOWER (%xmm0, %xmm1) + pcmpistri $0x1a, %xmm1, %xmm0 +#endif jbe LABEL(use_sse4_2_exit) #ifdef USE_AS_STRNCMP sub $16, %r11 @@ -1255,7 +1530,13 @@ LABEL(loop_ashr_13_use_sse4_2): movdqa (%rdi, %rdx), %xmm0 palignr $13, -16(%rdi, %rdx), %xmm0 - pcmpistri $0x1a,(%rsi,%rdx), %xmm0 +#ifndef USE_AS_STRCASECMP_L + pcmpistri $0x1a, (%rsi,%rdx), %xmm0 +#else + movdqa (%rsi,%rdx), %xmm1 + TOLOWER (%xmm0, %xmm1) + pcmpistri $0x1a, %xmm1, %xmm0 +#endif jbe LABEL(use_sse4_2_exit) #ifdef USE_AS_STRNCMP sub $16, %r11 @@ -1291,6 +1572,7 @@ LABEL(ashr_14_sse4_2): movdqa (%rsi), %xmm1 pcmpeqb %xmm1, %xmm0 pslldq $2, %xmm2 + TOLOWER (%xmm1, %xmm2) pcmpeqb %xmm1, %xmm2 psubb %xmm0, %xmm2 pmovmskb %xmm2, %r9d @@ -1323,7 +1605,13 @@ LABEL(loop_ashr_14_use_sse4_2): movdqa (%rdi, %rdx), %xmm0 palignr $14, -16(%rdi, %rdx), %xmm0 - pcmpistri $0x1a,(%rsi,%rdx), %xmm0 +#ifndef USE_AS_STRCASECMP_L + pcmpistri $0x1a, (%rsi,%rdx), %xmm0 +#else + movdqa (%rsi,%rdx), %xmm1 + TOLOWER (%xmm0, %xmm1) + pcmpistri $0x1a, %xmm1, %xmm0 +#endif jbe LABEL(use_sse4_2_exit) #ifdef USE_AS_STRNCMP sub $16, %r11 @@ -1336,7 +1624,13 @@ LABEL(loop_ashr_14_use_sse4_2): movdqa (%rdi, %rdx), %xmm0 palignr $14, -16(%rdi, %rdx), %xmm0 - pcmpistri $0x1a,(%rsi,%rdx), %xmm0 +#ifndef USE_AS_STRCASECMP_L + pcmpistri $0x1a, (%rsi,%rdx), %xmm0 +#else + movdqa (%rsi,%rdx), %xmm1 + TOLOWER (%xmm0, %xmm1) + pcmpistri $0x1a, %xmm1, %xmm0 +#endif jbe LABEL(use_sse4_2_exit) #ifdef USE_AS_STRNCMP sub $16, %r11 @@ -1372,6 +1666,7 @@ LABEL(ashr_15_sse4_2): movdqa (%rsi), %xmm1 pcmpeqb %xmm1, %xmm0 pslldq $1, %xmm2 + TOLOWER (%xmm1, %xmm2) pcmpeqb %xmm1, %xmm2 psubb %xmm0, %xmm2 pmovmskb %xmm2, %r9d @@ -1406,7 +1701,13 @@ LABEL(loop_ashr_15_use_sse4_2): movdqa (%rdi, %rdx), %xmm0 palignr $15, -16(%rdi, %rdx), %xmm0 - pcmpistri $0x1a,(%rsi,%rdx), %xmm0 +#ifndef USE_AS_STRCASECMP_L + pcmpistri $0x1a, (%rsi,%rdx), %xmm0 +#else + movdqa (%rsi,%rdx), %xmm1 + TOLOWER (%xmm0, %xmm1) + pcmpistri $0x1a, %xmm1, %xmm0 +#endif jbe LABEL(use_sse4_2_exit) #ifdef USE_AS_STRNCMP sub $16, %r11 @@ -1419,7 +1720,13 @@ LABEL(loop_ashr_15_use_sse4_2): movdqa (%rdi, %rdx), %xmm0 palignr $15, -16(%rdi, %rdx), %xmm0 - pcmpistri $0x1a,(%rsi,%rdx), %xmm0 +#ifndef USE_AS_STRCASECMP_L + pcmpistri $0x1a, (%rsi,%rdx), %xmm0 +#else + movdqa (%rsi,%rdx), %xmm1 + TOLOWER (%xmm0, %xmm1) + pcmpistri $0x1a, %xmm1, %xmm0 +#endif jbe LABEL(use_sse4_2_exit) #ifdef USE_AS_STRNCMP sub $16, %r11 @@ -1458,6 +1765,12 @@ LABEL(use_sse4_2_exit): jz LABEL(use_sse4_2_ret_sse4_2) xchg %eax, %edx LABEL(use_sse4_2_ret_sse4_2): +# ifdef USE_AS_STRCASECMP_L + leaq _nl_C_LC_CTYPE_tolower+128*4(%rip), %rcx + movl (%rcx,%rdx,4), %edx + movl (%rcx,%rax,4), %eax +# endif + sub %edx, %eax ret @@ -1480,6 +1793,12 @@ LABEL(less16bytes_sse4_2): movzbl (%rsi, %rdx), %ecx movzbl (%rdi, %rdx), %eax +# ifdef USE_AS_STRCASECMP_L + leaq _nl_C_LC_CTYPE_tolower+128*4(%rip), %rdx + movl (%rdx,%rcx,4), %ecx + movl (%rdx,%rax,4), %eax +# endif + sub %ecx, %eax ret @@ -1488,15 +1807,27 @@ LABEL(strcmp_exitz_sse4_2): ret .p2align 4 + // XXX Same as code above LABEL(Byte0_sse4_2): movzx (%rsi), %ecx movzx (%rdi), %eax +# ifdef USE_AS_STRCASECMP_L + leaq _nl_C_LC_CTYPE_tolower+128*4(%rip), %rdx + movl (%rdx,%rcx,4), %ecx + movl (%rdx,%rax,4), %eax +# endif + sub %ecx, %eax ret cfi_endproc .size STRCMP_SSE42, .-STRCMP_SSE42 +# undef UCLOW_reg +# undef UCHIGH_reg +# undef LCQWORD_reg +# undef TOLOWER + /* Put all SSE 4.2 functions together. */ .section .rodata.sse4.2,"a",@progbits .p2align 3 @@ -1528,6 +1859,17 @@ LABEL(unaligned_table_sse4_2): # undef END # define END(name) \ cfi_endproc; .size STRCMP_SSE2, .-STRCMP_SSE2 + +# ifdef USE_AS_STRCASECMP_L +# define ENTRY2(name) \ + .type __strcasecmp_sse2, @function; \ + .align 16; \ + __strcasecmp_sse2: cfi_startproc; \ + CALL_MCOUNT +# define END2(name) \ + cfi_endproc; .size __strcasecmp_sse2, .-__strcasecmp_sse2 +# endif + # undef libc_hidden_builtin_def /* It doesn't make sense to send libc-internal strcmp calls through a PLT. The speedup we get from using SSE4.2 instruction is likely eaten away |