disable auto vectorization on %arm32_with_neon and gcc >= 12

gcc 12 enables by default auto vectorization with -O2 however on neon
capable arm 32-bit archs this produces segfaulting binary (seems to be
fine on x86/aarch64 though)

diff --git a/openjdk11.spec b/openjdk11.spec
index cc68a64b8a3b6e6a23f9b548bbf9c2a0e8d70279..e332488db47f08b24695f99318bd2535725ec060 100644 (file)
--- a/openjdk11.spec
+++ b/openjdk11.spec
@@ -58,7 +58,7 @@ BuildRequires:        lsb-release
 BuildRequires: pcsc-lite-devel
 BuildRequires: pkgconfig
 BuildRequires: rpm-build >= 4.6
-BuildRequires: rpmbuild(macros) >= 1.752
+BuildRequires: rpmbuild(macros) >= 2.007
 BuildRequires: unzip
 BuildRequires: util-linux
 BuildRequires: xorg-lib-libX11-devel
@@ -110,6 +110,12 @@ BuildRoot: %{tmpdir}/%{name}-%{version}-root-%(id -u -n)
 # openjdk build system handles _FORTIFY_SOURCE internally
 %undefine      _fortify_cflags
 
+%if %{_ver_ge %(rpm -q --qf='%%{VERSION}' gcc) 12}
+%ifarch %arm32_with_neon
+%define                specflags_arm   -fno-tree-vectorize
+%endif
+%endif
+
 %description
 Open-source implementation of the Java Platform, Standard Edition.