From: H.J. Lu <hjl.tools@gmail.com>
Date: Tue, 11 Nov 2025 07:43:31 +0000 (+0800)
Subject: x86-64: Fix a typo in fesetenv.c [BZ #33619]
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=71d9f47b5a7a22a0576aea699cfd1820a83fd41b;p=thirdparty%2Fglibc.git

x86-64: Fix a typo in fesetenv.c [BZ #33619]

Fix a typo in

commit 427c25278d1dae62dffa07ea5cd0fc33f07190af
Author: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Date:   Fri Oct 31 17:00:46 2025 -0300

    x86: Adapt "%v" usage on clang to emit VEX enconding

@@ -103,8 +104,8 @@ __fesetenv (const fenv_t *envp)
       temp.__mxcsr = envp->__mxcsr;
     }

-  __asm__ ("fldenv %0\n"
-          "%vldmxcsr %1" : : "m" (temp), "m" (temp.__mxcsr));
+  asm volatile ("fldenv %0" : "=m" (temp));
+  ldmxcsr_inline_asm (&temp.__mxcsr);

   /* Success.  */
   return 0;

"temp" is input not output.  This fixes BZ #33619.

Signed-off-by: H.J. Lu <hjl.tools@gmail.com>
Reviewed-by: Collin Funk <collin.funk1@gmail.com>
---

diff --git a/sysdeps/x86_64/fpu/fesetenv.c b/sysdeps/x86_64/fpu/fesetenv.c
index 9cf5f889ed..781de281b8 100644
--- a/sysdeps/x86_64/fpu/fesetenv.c
+++ b/sysdeps/x86_64/fpu/fesetenv.c
@@ -104,7 +104,7 @@ __fesetenv (const fenv_t *envp)
       temp.__mxcsr = envp->__mxcsr;
     }
 
-  asm volatile ("fldenv %0" : "=m" (temp));
+  asm volatile ("fldenv %0" : : "m" (temp));
   ldmxcsr_inline_asm (&temp.__mxcsr);
 
   /* Success.  */