qiurui
/
glibc
mirror of git://sourceware.org/git/glibc.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

x86-64: Use RDX_LP on __x86_shared_non_temporal_threshold [BZ #25966] 

Since __x86_shared_non_temporal_threshold is defined as

long int __x86_shared_non_temporal_threshold;

and long int is 4 bytes for x32, use RDX_LP to compare against
__x86_shared_non_temporal_threshold in assembly code.
This commit is contained in:
H.J. Lu 2020-05-09 12:04:23 -07:00
parent e1b871e25f
commit 55c7bcc71b
1 changed files with 3 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S
View File

@ -244,7 +244,7 @@ L(return):
ret ret
L(movsb): L(movsb):
cmpq __x86_shared_non_temporal_threshold(%rip), %rdx cmp __x86_shared_non_temporal_threshold(%rip), %RDX_LP
jae L(more_8x_vec) jae L(more_8x_vec)
cmpq %rsi, %rdi cmpq %rsi, %rdi
jb 1f jb 1f
@ -402,7 +402,7 @@ L(more_8x_vec):
addq %r8, %rdx addq %r8, %rdx
#if (defined USE_MULTIARCH || VEC_SIZE == 16) && IS_IN (libc) #if (defined USE_MULTIARCH || VEC_SIZE == 16) && IS_IN (libc)
/* Check non-temporal store threshold. */ /* Check non-temporal store threshold. */
cmpq __x86_shared_non_temporal_threshold(%rip), %rdx cmp __x86_shared_non_temporal_threshold(%rip), %RDX_LP
ja L(large_forward) ja L(large_forward)
#endif #endif
L(loop_4x_vec_forward): L(loop_4x_vec_forward):
@ -454,7 +454,7 @@ L(more_8x_vec_backward):
subq %r8, %rdx subq %r8, %rdx
#if (defined USE_MULTIARCH || VEC_SIZE == 16) && IS_IN (libc) #if (defined USE_MULTIARCH || VEC_SIZE == 16) && IS_IN (libc)
/* Check non-temporal store threshold. */ /* Check non-temporal store threshold. */
cmpq __x86_shared_non_temporal_threshold(%rip), %rdx cmp __x86_shared_non_temporal_threshold(%rip), %RDX_LP
ja L(large_backward) ja L(large_backward)
#endif #endif
L(loop_4x_vec_backward): L(loop_4x_vec_backward):