From 6720d36b6623c5e48c070d86acf61198b33e144e Mon Sep 17 00:00:00 2001 From: Fangrui Song Date: Tue, 2 Nov 2021 20:59:52 -0700 Subject: [PATCH] x86-64: Replace movzx with movzbl Content-type: text/plain; charset=UTF-8 Clang cannot assemble movzx in the AT&T dialect mode. ../sysdeps/x86_64/strcmp.S:2232:16: error: invalid operand for instruction movzx (%rsi), %ecx ^~~~ Change movzx to movzbl, which follows the AT&T dialect and is used elsewhere in the file. Reviewed-by: H.J. Lu --- sysdeps/x86_64/multiarch/strcmp-sse42.S | 4 ++-- sysdeps/x86_64/strcmp.S | 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/sysdeps/x86_64/multiarch/strcmp-sse42.S b/sysdeps/x86_64/multiarch/strcmp-sse42.S index a1ebea46..d8fdeb3a 100644 --- a/sysdeps/x86_64/multiarch/strcmp-sse42.S +++ b/sysdeps/x86_64/multiarch/strcmp-sse42.S @@ -1771,8 +1771,8 @@ LABEL(strcmp_exitz): .p2align 4 // XXX Same as code above LABEL(Byte0): - movzx (%rsi), %ecx - movzx (%rdi), %eax + movzbl (%rsi), %ecx + movzbl (%rdi), %eax #if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L leaq _nl_C_LC_CTYPE_tolower+128*4(%rip), %rdx diff --git a/sysdeps/x86_64/strcmp.S b/sysdeps/x86_64/strcmp.S index f47c8ad4..aa6df898 100644 --- a/sysdeps/x86_64/strcmp.S +++ b/sysdeps/x86_64/strcmp.S @@ -2232,8 +2232,8 @@ LABEL(strcmp_exitz): .p2align 4 LABEL(Byte0): - movzx (%rsi), %ecx - movzx (%rdi), %eax + movzbl (%rsi), %ecx + movzbl (%rdi), %eax #if defined USE_AS_STRCASECMP_L || defined USE_AS_STRNCASECMP_L leaq _nl_C_LC_CTYPE_tolower+128*4(%rip), %rdx -- GitLab