You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
48 lines
1.5 KiB
48 lines
1.5 KiB
commit 2e64237a8744dd50f9222293275fa52e7248ff76 |
|
Author: Fangrui Song <maskray@google.com> |
|
Date: Tue Nov 2 20:59:52 2021 -0700 |
|
|
|
x86-64: Replace movzx with movzbl |
|
|
|
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> |
|
(cherry picked from commit 6720d36b6623c5e48c070d86acf61198b33e144e) |
|
|
|
diff --git a/sysdeps/x86_64/multiarch/strcmp-sse42.S b/sysdeps/x86_64/multiarch/strcmp-sse42.S |
|
index bc19547b09639071..6197a723b9e0606e 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 824e648230a15739..7f8a1bc756f86aee 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
|
|
|