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From: Adhemerval Zanella <azanella@sourceware.org>
To: glibc-cvs@sourceware.org
Subject: [glibc/release/2.32/master] x86-64: Fix FMA4 detection in ifunc [BZ #26534]
Date: Wed,  2 Sep 2020 13:06:55 +0000 (GMT)	[thread overview]
Message-ID: <20200902130655.AE7663971C6D@sourceware.org> (raw)

https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=cebc01cbfd6c257f329e818b68bb1b2eef2afe09

commit cebc01cbfd6c257f329e818b68bb1b2eef2afe09
Author: Ondřej Hošek <ondra.hosek@gmail.com>
Date:   Wed Aug 26 04:26:50 2020 +0200

    x86-64: Fix FMA4 detection in ifunc [BZ #26534]
    
    A typo in commit 107e6a3c2212ba7a3a4ec7cae8d82d73f7c95d0b causes the
    FMA4 code path to be taken on systems that support FMA, even if they do
    not support FMA4. Fix this to detect FMA4.
    
    (cherry picked from commit 23af890b3f04e80da783ba64e6b6d94822e01d54)

Diff:
---
 sysdeps/x86_64/fpu/multiarch/ifunc-fma4.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sysdeps/x86_64/fpu/multiarch/ifunc-fma4.h b/sysdeps/x86_64/fpu/multiarch/ifunc-fma4.h
index 7659758972..e5fd5ac9cb 100644
--- a/sysdeps/x86_64/fpu/multiarch/ifunc-fma4.h
+++ b/sysdeps/x86_64/fpu/multiarch/ifunc-fma4.h
@@ -32,7 +32,7 @@ IFUNC_SELECTOR (void)
       && CPU_FEATURE_USABLE_P (cpu_features, AVX2))
     return OPTIMIZE (fma);
 
-  if (CPU_FEATURE_USABLE_P (cpu_features, FMA))
+  if (CPU_FEATURE_USABLE_P (cpu_features, FMA4))
     return OPTIMIZE (fma4);
 
   return OPTIMIZE (sse2);


                 reply	other threads:[~2020-09-02 13:06 UTC|newest]

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