about summary refs log tree commit diff
path: root/sysdeps/x86_64/multiarch
diff options
context:
space:
mode:
authorH.J. Lu <hjl.tools@gmail.com>2016-04-05 05:21:07 -0700
committerH.J. Lu <hjl.tools@gmail.com>2016-04-05 05:21:19 -0700
commitec0cac9a1f4094bd0db6f77c1b329e7a40eecc10 (patch)
tree127fd0493c624c8ae57cd8af979bdb88c5f6117e /sysdeps/x86_64/multiarch
parent696ac774847b80cf994438739478b0c3003b5958 (diff)
downloadglibc-ec0cac9a1f4094bd0db6f77c1b329e7a40eecc10.tar.gz
glibc-ec0cac9a1f4094bd0db6f77c1b329e7a40eecc10.tar.xz
glibc-ec0cac9a1f4094bd0db6f77c1b329e7a40eecc10.zip
Force 32-bit displacement in memset-vec-unaligned-erms.S
	* sysdeps/x86_64/multiarch/memset-vec-unaligned-erms.S: Force
	32-bit displacement to avoid long nop between instructions.
Diffstat (limited to 'sysdeps/x86_64/multiarch')
-rw-r--r--sysdeps/x86_64/multiarch/memset-vec-unaligned-erms.S13
1 files changed, 13 insertions, 0 deletions
diff --git a/sysdeps/x86_64/multiarch/memset-vec-unaligned-erms.S b/sysdeps/x86_64/multiarch/memset-vec-unaligned-erms.S
index 9383517536..fe0f74516d 100644
--- a/sysdeps/x86_64/multiarch/memset-vec-unaligned-erms.S
+++ b/sysdeps/x86_64/multiarch/memset-vec-unaligned-erms.S
@@ -159,10 +159,23 @@ L(return):
 	.p2align 4
 L(loop_start):
 	leaq	(VEC_SIZE * 4)(%rdi), %rcx
+# if VEC_SIZE == 32 || VEC_SIZE == 64
+	/* Force 32-bit displacement to avoid long nop between
+	   instructions.  */
+	VMOVU.d32 %VEC(0), (%rdi)
+# else
 	VMOVU	%VEC(0), (%rdi)
+# endif
 	andq	$-(VEC_SIZE * 4), %rcx
+# if VEC_SIZE == 32
+	/* Force 32-bit displacement to avoid long nop between
+	   instructions.  */
+	VMOVU.d32 %VEC(0), -VEC_SIZE(%rdi,%rdx)
+	VMOVU.d32 %VEC(0), VEC_SIZE(%rdi)
+# else
 	VMOVU	%VEC(0), -VEC_SIZE(%rdi,%rdx)
 	VMOVU	%VEC(0), VEC_SIZE(%rdi)
+# endif
 	VMOVU	%VEC(0), -(VEC_SIZE * 2)(%rdi,%rdx)
 	VMOVU	%VEC(0), (VEC_SIZE * 2)(%rdi)
 	VMOVU	%VEC(0), -(VEC_SIZE * 3)(%rdi,%rdx)