[openssl] master update

[tomas at openssl.org]

The branch master has been updated
       via  788a72e92fc0b78c2ca12df90e45cccbaf7a800e (commit)
      from  1ee1a169c310f3dc735a3d83298686cf70aa427a (commit)


- Log -----------------------------------------------------------------
commit 788a72e92fc0b78c2ca12df90e45cccbaf7a800e
Author: Andrey Matyukov <andrey.matyukov at intel.com>
Date:   Wed Mar 24 10:05:29 2021 +0300

    Increase minimum clang version requirement for rsaz-avx512.pl
    
    The reason is that clang-6 does not enable proper -march flags by
    default for assembly modules (rsaz-avx512.pl requires avx512ifma, avx512dq,
    avx512vl, avx512f). This is not true for newer clang versions - clang-7 and
    further work ok.
    
    For older clang versions users who want to get optimization from this
    file, we have a note in the OPENSSL_ia32cap.pod with the workaround that
    proposes having a wrapper that forces using external assembler.
    
    Fixes #14668: clang-6.0.0 build broken
    
    Reviewed-by: Richard Levitte <levitte at openssl.org>
    Reviewed-by: Matt Caswell <matt at openssl.org>
    Reviewed-by: Paul Dale <pauli at openssl.org>
    Reviewed-by: Tomas Mraz <tomas at openssl.org>
    (Merged from https://github.com/openssl/openssl/pull/14671)

-----------------------------------------------------------------------

Summary of changes:
 crypto/bn/asm/rsaz-avx512.pl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/crypto/bn/asm/rsaz-avx512.pl b/crypto/bn/asm/rsaz-avx512.pl
index 04effabffa..d22eeef5da 100644
--- a/crypto/bn/asm/rsaz-avx512.pl
+++ b/crypto/bn/asm/rsaz-avx512.pl
@@ -49,7 +49,7 @@ if (!$avx512 && $win64 && ($flavour =~ /nasm/ || $ENV{ASM} =~ /nasm/) &&
 }
 
 if (!$avx512 && `$ENV{CC} -v 2>&1` =~ /((?:clang|LLVM) version|.*based on LLVM) ([0-9]+\.[0-9]+)/) {
-    $avx512ifma = ($2>=6.0);
+    $avx512ifma = ($2>=7.0);
 }
 
 open OUT,"| \"$^X\" \"$xlate\" $flavour \"$output\""