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GNU C Library master sources branch hjl/memcmp/avx2 updated. glibc-2.25-522-g2b047a8
- From: hjl at sourceware dot org
- To: glibc-cvs at sourceware dot org
- Date: 20 Jun 2017 13:46:09 -0000
- Subject: GNU C Library master sources branch hjl/memcmp/avx2 updated. glibc-2.25-522-g2b047a8
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The branch, hjl/memcmp/avx2 has been updated
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from 9c933ed098769d38c56138bcec3096cb462030f6 (commit)
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http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=2b047a8ff3d46e39e5abc677a3438710710a7cb2
commit 2b047a8ff3d46e39e5abc677a3438710710a7cb2
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Tue Jun 20 06:45:20 2017 -0700
Use vptest
diff --git a/sysdeps/x86_64/multiarch/memcmp-avx2-movbe-new.S b/sysdeps/x86_64/multiarch/memcmp-avx2-movbe-new.S
index 9338cb0..3bdd12e 100644
--- a/sysdeps/x86_64/multiarch/memcmp-avx2-movbe-new.S
+++ b/sysdeps/x86_64/multiarch/memcmp-avx2-movbe-new.S
@@ -314,9 +314,8 @@ L(loop_4x_vec):
VPCMPEQ (VEC_SIZE * 3)(%rdi), %ymm4, %ymm4
vpand %ymm4, %ymm5, %ymm5
- vpmovmskb %ymm5, %eax
- subl $VEC_MASK, %eax
- jnz L(4x_vec_end)
+ vptest %ymm0, %ymm5
+ jnc L(4x_vec_end)
addq $(VEC_SIZE * 4), %rdi
addq $(VEC_SIZE * 4), %rsi
-----------------------------------------------------------------------
Summary of changes:
sysdeps/x86_64/multiarch/memcmp-avx2-movbe-new.S | 5 ++---
1 files changed, 2 insertions(+), 3 deletions(-)
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