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* [glibc] sparc: Force calculation that raises exception
@ 2024-01-18 11:48 Adhemerval Zanella
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From: Adhemerval Zanella @ 2024-01-18 11:48 UTC (permalink / raw)
  To: glibc-cvs

https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=45f7ea26c1d9145a9e024b8646592d405fb285e0

commit 45f7ea26c1d9145a9e024b8646592d405fb285e0
Author: Daniel Cederman <cederman@gaisler.com>
Date:   Tue Jan 16 16:16:41 2024 +0100

    sparc: Force calculation that raises exception
    
    Use the math_force_eval() macro to force the calculation to complete and
    raise the exception.
    
    With this change the math/test-fenv test pass.
    
    Signed-off-by: Daniel Cederman <cederman@gaisler.com>
    Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>

Diff:
---
 sysdeps/sparc/fpu/fraiseexcpt.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/sysdeps/sparc/fpu/fraiseexcpt.c b/sysdeps/sparc/fpu/fraiseexcpt.c
index 26a7720ec9..642666c12a 100644
--- a/sysdeps/sparc/fpu/fraiseexcpt.c
+++ b/sysdeps/sparc/fpu/fraiseexcpt.c
@@ -20,6 +20,7 @@
 #include <float.h>
 #include <math.h>
 #include <shlib-compat.h>
+#include <math-barriers.h>
 
 int
 __feraiseexcept (int excepts)
@@ -42,7 +43,7 @@ __feraiseexcept (int excepts)
       /* One example of an invalid operation is 0/0.  */
       __asm ("" : "=e" (d) : "0" (c.zero));
       d /= c.zero;
-      __asm __volatile ("" : : "e" (d));
+      math_force_eval (d);
     }
 
   /* Next: division by zero.  */
@@ -50,7 +51,7 @@ __feraiseexcept (int excepts)
     {
       __asm ("" : "=e" (d) : "0" (c.one));
       d /= c.zero;
-      __asm __volatile ("" : : "e" (d));
+      math_force_eval (d);
     }
 
   /* Next: overflow.  */
@@ -58,7 +59,7 @@ __feraiseexcept (int excepts)
     {
       __asm ("" : "=e" (d) : "0" (c.max));
       d *= d;
-      __asm __volatile ("" : : "e" (d));
+      math_force_eval (d);
     }
 
   /* Next: underflow.  */
@@ -66,7 +67,7 @@ __feraiseexcept (int excepts)
     {
       __asm ("" : "=e" (d) : "0" (c.min));
       d *= d;
-      __asm __volatile ("" : : "e" (d));
+      math_force_eval (d);
     }
 
   /* Last: inexact.  */
@@ -74,7 +75,7 @@ __feraiseexcept (int excepts)
     {
       __asm ("" : "=e" (d) : "0" (c.one));
       d /= c.pi;
-      __asm __volatile ("" : : "e" (d));
+      math_force_eval (d);
     }
 
   /* Success.  */

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2024-01-18 11:48 [glibc] sparc: Force calculation that raises exception Adhemerval Zanella

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