x86-64: Remove the unnecessary testl in strlen-avx2.S

Message ID 20180512133325.GB30516@gmail.com
State New
Headers show
Series
  • x86-64: Remove the unnecessary testl in strlen-avx2.S
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Commit Message

H.J. Lu May 12, 2018, 1:33 p.m.
Since the result of testl is never used, this patch removes it.

Tested on 64-bit AVX2 machine.

I will check it in next week.

H.J.
---
	* sysdeps/x86_64/multiarch/strlen-avx2.S (STRLEN): Remove the
	unnecessary testl.
---
 sysdeps/x86_64/multiarch/strlen-avx2.S | 1 -
 1 file changed, 1 deletion(-)

Patch

diff --git a/sysdeps/x86_64/multiarch/strlen-avx2.S b/sysdeps/x86_64/multiarch/strlen-avx2.S
index 85d7259746..fb2418cddc 100644
--- a/sysdeps/x86_64/multiarch/strlen-avx2.S
+++ b/sysdeps/x86_64/multiarch/strlen-avx2.S
@@ -378,7 +378,6 @@  L(4x_vec_end):
 	jnz	L(first_vec_x2)
 	VPCMPEQ %ymm4, %ymm0, %ymm4
 	vpmovmskb %ymm4, %eax
-	testl	%eax, %eax
 L(first_vec_x3):
 	tzcntl	%eax, %eax
 	addq	$(VEC_SIZE * 3), %rax