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From: Adhemerval Zanella <adhemerval.zanella@linaro.org>
To: libc-alpha@sourceware.org, Bruno Haible <bruno@clisp.org>
Subject: [PATCH v2 6/7] alpha: Fix fesetexceptflag (BZ 30998)
Date: Mon,  6 Nov 2023 10:27:12 -0300	[thread overview]
Message-ID: <20231106132713.953501-7-adhemerval.zanella@linaro.org> (raw)
In-Reply-To: <20231106132713.953501-1-adhemerval.zanella@linaro.org>

From: Bruno Haible <bruno@clisp.org>

It clears some exception flags that are outside the EXCEPTS argument.

It fixes math/test-fexcept on qemu-user.
---
 sysdeps/alpha/fpu/fsetexcptflg.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sysdeps/alpha/fpu/fsetexcptflg.c b/sysdeps/alpha/fpu/fsetexcptflg.c
index 70f3666a6e..63eb06845d 100644
--- a/sysdeps/alpha/fpu/fsetexcptflg.c
+++ b/sysdeps/alpha/fpu/fsetexcptflg.c
@@ -27,7 +27,7 @@ __fesetexceptflag (const fexcept_t *flagp, int excepts)
   tmp = __ieee_get_fp_control ();
 
   /* Set all the bits that were called for.  */
-  tmp = (tmp & ~SWCR_STATUS_MASK) | (*flagp & excepts & SWCR_STATUS_MASK);
+  tmp ^= (tmp ^ *flagp) & excepts & SWCR_STATUS_MASK;
 
   /* And store it back.  */
   __ieee_set_fp_control (tmp);
-- 
2.34.1


  parent reply	other threads:[~2023-11-06 13:27 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-11-06 13:27 [PATCH v2 0/7] Multiple floating-point environment fixes Adhemerval Zanella
2023-11-06 13:27 ` [PATCH v2 1/7] powerpc: Do not raise exception traps for fesetexcept/fesetexceptflag (BZ 30988) Adhemerval Zanella
2023-11-06 16:08   ` Carlos O'Donell
2023-11-06 16:50     ` Adhemerval Zanella Netto
2023-11-06 17:02       ` Carlos O'Donell
2023-11-06 17:11         ` Adhemerval Zanella Netto
2023-11-06 17:37           ` Adhemerval Zanella Netto
2023-11-06 17:38           ` Carlos O'Donell
2023-11-06 17:56             ` Adhemerval Zanella Netto
2023-11-06 20:46               ` Adhemerval Zanella Netto
2023-11-23 21:47                 ` Carlos O'Donell
2023-11-24 12:28                   ` Adhemerval Zanella Netto
2023-11-24 12:37                     ` Adhemerval Zanella Netto
2023-11-24 16:22                     ` Carlos O'Donell
2023-11-24 17:53                       ` Adhemerval Zanella Netto
2023-11-24 18:15                         ` Carlos O'Donell
2023-11-24 18:46                           ` Adhemerval Zanella Netto
2023-11-27 13:46                             ` Adhemerval Zanella Netto
2023-12-19 14:57                               ` Carlos O'Donell
2023-11-06 13:27 ` [PATCH v2 2/7] i686: Do not raise exception traps on fesetexcept (BZ 30989) Adhemerval Zanella
2023-11-06 16:14   ` Carlos O'Donell
2023-11-06 13:27 ` [PATCH v2 3/7] x86: Do not raises floating-point exception traps on fesetexceptflag (BZ 30990) Adhemerval Zanella
2023-11-06 16:16   ` Carlos O'Donell
2023-11-06 13:27 ` [PATCH v2 4/7] manual: Clarify undefined behavior of feenableexcept (BZ 31019) Adhemerval Zanella
2023-11-06 16:17   ` Carlos O'Donell
2023-11-06 13:27 ` [PATCH v2 5/7] riscv: Fix feenvupdate with FE_DFL_ENV (BZ 31022) Adhemerval Zanella
2023-11-06 16:19   ` Carlos O'Donell
2023-11-06 13:27 ` Adhemerval Zanella [this message]
2023-11-06 16:54   ` [PATCH v2 6/7] alpha: Fix fesetexceptflag (BZ 30998) Carlos O'Donell
2023-11-06 17:36     ` Bruno Haible
2023-11-06 18:15       ` Carlos O'Donell
2023-11-06 13:27 ` [PATCH v2 7/7] hppa: Fix undefined behaviour in feclearexcept (BZ 30983) Adhemerval Zanella
2023-11-06 16:57   ` Carlos O'Donell

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