public inbox for glibc-cvs@sourceware.org
help / color / mirror / Atom feed
* [glibc/release/2.31/master] x86-64: Use RDX_LP on __x86_shared_non_temporal_threshold [BZ #25966]
@ 2020-05-09 19:40 H.J. Lu
  0 siblings, 0 replies; only message in thread
From: H.J. Lu @ 2020-05-09 19:40 UTC (permalink / raw)
  To: glibc-cvs

https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=4c833bbebe366ac5baec87dd68ec0a4962ee86ae

commit 4c833bbebe366ac5baec87dd68ec0a4962ee86ae
Author: H.J. Lu <hjl.tools@gmail.com>
Date:   Sat May 9 12:04:23 2020 -0700

    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.
    
    (cherry picked from commit 55c7bcc71b84123d5d4bd2814366a6b05fcf8ebd)

Diff:
---
 sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S b/sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S
index c763b7d871..74953245aa 100644
--- a/sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S
+++ b/sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S
@@ -244,7 +244,7 @@ L(return):
 	ret
 
 L(movsb):
-	cmpq	__x86_shared_non_temporal_threshold(%rip), %rdx
+	cmp	__x86_shared_non_temporal_threshold(%rip), %RDX_LP
 	jae	L(more_8x_vec)
 	cmpq	%rsi, %rdi
 	jb	1f
@@ -402,7 +402,7 @@ L(more_8x_vec):
 	addq	%r8, %rdx
 #if (defined USE_MULTIARCH || VEC_SIZE == 16) && IS_IN (libc)
 	/* 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)
 #endif
 L(loop_4x_vec_forward):
@@ -454,7 +454,7 @@ L(more_8x_vec_backward):
 	subq	%r8, %rdx
 #if (defined USE_MULTIARCH || VEC_SIZE == 16) && IS_IN (libc)
 	/* 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)
 #endif
 L(loop_4x_vec_backward):


^ permalink raw reply	[flat|nested] only message in thread
only message in thread, other threads:[~2020-05-09 19:40 UTC | newest]

Thread overview: (only message) (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-05-09 19:40 [glibc/release/2.31/master] x86-64: Use RDX_LP on __x86_shared_non_temporal_threshold [BZ #25966] H.J. Lu

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).