import gcc-8.5.0-16.el8_7

SOURCES/gcc8-pr105502.patch

+From b005000525ab0a5116d21217c41fb1da5bd03796 Mon Sep 17 00:00:00 2001
+From: Jonathan Wakely <jwakely@redhat.com>
+Date: Fri, 6 May 2022 21:19:17 +0100
+Subject: [PATCH] libstdc++: Fix deserialization for std::normal_distribution
+ [PR105502]
+
+This fixes a regression in std::normal_distribution deserialization that
+caused the object to be left unchanged if the __state_avail value read
+from the stream was false.
+
+libstdc++-v3/ChangeLog:
+
+	PR libstdc++/105502
+	* include/bits/random.tcc
+	(operator>>(basic_istream<C,T>&, normal_distribution<R>&)):
+	Update state when __state_avail is false.
+	* testsuite/26_numerics/random/normal_distribution/operators/serialize.cc:
+	Check that deserialized object equals serialized one.
+
+(cherry picked from commit 909ef4e2727ddc50a32d6ad379a1f1ccc1043c6a)
+---
+ libstdc++-v3/include/bits/random.tcc          |  2 +-
+ .../operators/serialize.cc                    | 36 ++++++++++++++++++-
+ 2 files changed, 36 insertions(+), 2 deletions(-)
+
+diff --git a/libstdc++-v3/include/bits/random.tcc b/libstdc++-v3/include/bits/random.tcc
+index 0a299baedc5..0f758671f69 100644
+--- a/libstdc++-v3/include/bits/random.tcc
++++ b/libstdc++-v3/include/bits/random.tcc
+@@ -1941,7 +1941,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
+       bool __saved_avail;
+       if (__is >> __mean >> __stddev >> __saved_avail)
+ 	{
+-	  if (__saved_avail && (__is >> __x._M_saved))
++	  if (!__saved_avail || (__is >> __x._M_saved))
+ 	    {
+ 	      __x._M_saved_available = __saved_avail;
+ 	      __x.param(typename normal_distribution<_RealType>::
+diff --git a/libstdc++-v3/testsuite/26_numerics/random/normal_distribution/operators/serialize.cc b/libstdc++-v3/testsuite/26_numerics/random/normal_distribution/operators/serialize.cc
+index a65d4004161..8cc70886bc7 100644
+--- a/libstdc++-v3/testsuite/26_numerics/random/normal_distribution/operators/serialize.cc
++++ b/libstdc++-v3/testsuite/26_numerics/random/normal_distribution/operators/serialize.cc
+@@ -25,6 +25,7 @@
+ 
+ #include <random>
+ #include <sstream>
++#include <testsuite_hooks.h>
+ 
+ void
+ test01()
+@@ -37,10 +38,43 @@ test01()
+   str << u;
+ 
+   str >> v;
++  VERIFY( u == v );
++}
++
++void
++test_pr105502()
++{
++  // PR libstdc++/105502 std::normal_distribution deserialization issue
++  std::stringstream str;
++  std::normal_distribution<> d{1, 2}, d2;
++  std::minstd_rand0 g;
++  str << d;
++  VERIFY( str );
++  str >> d2;
++  VERIFY( str );
++  VERIFY( d == d2 );
++
++  (void) d(g); // sets d._M_saved_available = true
++  str.str("");
++  str.clear();
++  str << d;
++  VERIFY( str );
++  str >> d2;
++  VERIFY( str );
++  VERIFY( d == d2 );
++
++  (void) d(g); // sets d._M_saved_available = false
++  str.str("");
++  str.clear();
++  str << d;
++  VERIFY( str );
++  str >> d2;
++  VERIFY( str );
++  VERIFY( d == d2 );
+ }
+ 
+ int main()
+ {
+   test01();
+-  return 0;
++  test_pr105502();
+ }
+-- 
+2.31.1
+

SPECS/gcc.spec

@@ -4,7 +4,7 @@
 %global gcc_major 8
 # Note, gcc_release must be integer, if you want to add suffixes to
 # %%{release}, append them after %%{gcc_release} on Release: line.
-%global gcc_release 15
+%global gcc_release 16
 %global nvptx_tools_gitrev c28050f60193b3b95a18866a96f03334e874e78f
 %global nvptx_newlib_gitrev aadc8eb0ec43b7cd0dd2dfb484bae63c8b05ef24
 %global _unpackaged_files_terminate_build 0
@@ -286,6 +286,7 @@ Patch25: gcc8-aarch64-mtune-neoverse-512tvb.patch
 Patch26: gcc8-rh2028609.patch
 Patch27: gcc8-libgfortran-default-values.patch
 Patch28: gcc8-rh2001788.patch
+Patch29: gcc8-pr105502.patch
 
 Patch30: gcc8-rh1668903-1.patch
 Patch31: gcc8-rh1668903-2.patch
@@ -896,6 +897,7 @@ so that there cannot be any synchronization problems.
 %patch26 -p1 -b .rh2028609~
 %patch27 -p1 -b .libgfortran-default~
 %patch28 -p1 -b .rh2001788~
+%patch29 -p1 -b .pr105502~
 
 %patch30 -p0 -b .rh1668903-1~
 %patch31 -p0 -b .rh1668903-2~
@@ -3311,6 +3313,10 @@ fi
 %{ANNOBIN_GCC_PLUGIN_DIR}/gcc-annobin.so.0.0.0
 
 %changelog
+* Fri Nov 18 2022 Marek Polacek <polacek@redhat.com> 8.5.0-16
+- fix deserialization for std::normal_distribution (#2144075,
+  PR libstdc++/105502)
+
 * Wed Jul 20 2022 Marek Polacek <polacek@redhat.com> 8.5.0-15
 - backport straight-line-speculation mitigation (#2108721)