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x86-64: Replace movzx with movzbl

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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 <hjl.tools@gmail.com>
This commit is contained in:
Fangrui Song 2021-11-02 20:59:52 -07:00
parent fdcd177fd3
commit 6720d36b66
2 changed files with 4 additions and 4 deletions
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4
sysdeps/x86_64/multiarch/strcmp-sse42.S
View File

@ -1770,8 +1770,8 @@ 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

4
sysdeps/x86_64/strcmp.S
View File

@ -2229,8 +2229,8 @@ 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