diff options
Diffstat (limited to 'sysdeps/x86_64/multiarch/strcmp-evex.S')
| -rw-r--r-- | sysdeps/x86_64/multiarch/strcmp-evex.S | 20 |
1 files changed, 10 insertions, 10 deletions
diff --git a/sysdeps/x86_64/multiarch/strcmp-evex.S b/sysdeps/x86_64/multiarch/strcmp-evex.S index a8bd5cd786..ae39cdf217 100644 --- a/sysdeps/x86_64/multiarch/strcmp-evex.S +++ b/sysdeps/x86_64/multiarch/strcmp-evex.S @@ -217,7 +217,7 @@ ENTRY (STRCASECMP) movq __libc_tsd_LOCALE@gottpoff(%rip), %rax mov %fs:(%rax), %LOCALE_REG_LP - /* Either 1 or 5 bytes (dependeing if CET is enabled). */ + /* Either 1 or 5 bytes (depending if CET is enabled). */ .p2align 4 END (STRCASECMP) /* FALLTHROUGH to strcasecmp/strncasecmp_l. */ @@ -455,7 +455,7 @@ L(return_vec_3): # endif /* If CHAR_PER_VEC == 64 we can't combine matches from the last - 2x VEC so need seperate return label. */ + 2x VEC so need separate return label. */ L(return_vec_2): # if (CHAR_PER_VEC <= 16) || !(defined USE_AS_STRNCMP) bsf %VRCX, %VRCX @@ -567,7 +567,7 @@ L(prepare_loop_no_len): shrl $2, %ecx leaq (CHAR_PER_VEC * 2)(%rdx, %rcx), %rdx # else - /* Store N + (VEC_SIZE * 4) and place check at the begining of + /* Store N + (VEC_SIZE * 4) and place check at the beginning of the loop. */ leaq (VEC_SIZE * 2)(%rdi, %rdx), %rdx L(prepare_loop_no_len): @@ -840,7 +840,7 @@ L(ret7): /* If CHAR_PER_VEC == 64 we can't combine matches from the last - 2x VEC so need seperate return label. */ + 2x VEC so need separate return label. */ # if CHAR_PER_VEC == 64 L(return_vec_2_end): bsf %VRCX, %VRCX @@ -906,7 +906,7 @@ L(page_cross_during_loop): .p2align 4,, 4 L(less_1x_vec_till_page_cross): subl $-(VEC_SIZE * 4), %eax - /* Guranteed safe to read from rdi - VEC_SIZE here. The only + /* Guaranteed safe to read from rdi - VEC_SIZE here. The only concerning case is first iteration if incoming s1 was near start of a page and s2 near end. If s1 was near the start of the page we already aligned up to nearest VEC_SIZE * 4 so gurnateed safe @@ -997,7 +997,7 @@ L(return_page_cross_end_check): and %VR10, %VRCX /* Need to use tzcnt here as VRCX may be zero. If VRCX is zero tzcnt(VRCX) will be CHAR_PER and remaining length (edx) is - guranteed to be <= CHAR_PER_VEC so we will only use the return + guaranteed to be <= CHAR_PER_VEC so we will only use the return idx if VRCX was non-zero. */ tzcnt %VRCX, %VRCX leal -VEC_SIZE(%rax, %rcx, SIZE_OF_CHAR), %ecx @@ -1147,7 +1147,7 @@ L(ret9): L(page_cross): # ifndef USE_AS_STRNCMP /* If both are VEC aligned we don't need any special logic here. - Only valid for strcmp where stop condition is guranteed to + Only valid for strcmp where stop condition is guaranteed to be reachable by just reading memory. */ testl $((VEC_SIZE - 1) << 20), %eax jz L(no_page_cross) @@ -1185,7 +1185,7 @@ L(page_cross): jg L(less_1x_vec_till_page) - /* If more than 1x VEC till page cross, loop throuh safely + /* If more than 1x VEC till page cross, loop through safely loadable memory until within 1x VEC of page cross. */ .p2align 4,, 8 L(page_cross_loop): @@ -1209,9 +1209,9 @@ L(page_cross_loop): subl %eax, %OFFSET_REG - /* OFFSET_REG has distance to page cross - VEC_SIZE. Guranteed + /* OFFSET_REG has distance to page cross - VEC_SIZE. Guaranteed to not cross page so is safe to load. Since we have already - loaded at least 1 VEC from rsi it is also guranteed to be + loaded at least 1 VEC from rsi it is also guaranteed to be safe. */ VMOVU (%rdi, %OFFSET_REG64, SIZE_OF_CHAR), %VMM(0) VPTESTM %VMM(0), %VMM(0), %k2 |