diff --git a/.abf.yml b/.abf.yml
index f07a305..9f74987 100644
--- a/.abf.yml
+++ b/.abf.yml
@@ -1,6 +1,11 @@
 sources:
   clang-11.0.1.src.tar.xz: 10516c6d177dc3d893e640c75d891ee3d6c1edcf
+  clang-12.0.1.src.tar.xz: e3cdd3fb39c78a5bcb0a1d5706678cf8643a48f6
   clang-tools-extra-11.0.1.src.tar.xz: f5698eb81569a5dea2496c4934401be653eeb031
+  clang-tools-extra-12.0.1.src.tar.xz: 42f179bb59432c4d2785239952853ad6308d0863
   compiler-rt-11.0.1.src.tar.xz: c492a0142887efbe667f6b3994b43a48f53d4832
+  compiler-rt-12.0.1.src.tar.xz: d33af648dc9b901c6c9f6c5872af2f59203f1a25
   llvm-11.0.1.src.tar.xz: 1a911295260d4e41116b72788eb602702b4bb252
+  llvm-12.0.1.src.tar.xz: 619fe668e0972d11d0fa2db670a57a42d02fb8ca
   polly-11.0.1.src.tar.xz: 1489870c457e7a6396bf4793b62dd264faf844b7
+  polly-12.0.1.src.tar.xz: d3cf504adc32448f62aa396f221cf20df0c9fe34
diff --git a/clang-rosa.patch b/clang-rosa.patch
index cd0f941..4fab98b 100644
--- a/clang-rosa.patch
+++ b/clang-rosa.patch
@@ -1,7 +1,14 @@
-diff -Naur clang-9.0.1.src-orig/include/clang/Driver/Distro.h clang-9.0.1.src/include/clang/Driver/Distro.h
---- clang-9.0.1.src-orig/include/clang/Driver/Distro.h	2019-12-11 22:15:30.000000000 +0300
-+++ clang-9.0.1.src/include/clang/Driver/Distro.h	2020-02-14 19:46:31.781378040 +0300
-@@ -38,8 +38,10 @@
+ .../include/clang/Driver/Distro.h                           |  9 +++++++++
+ .../lib/Driver/Distro.cpp                                   |  9 +++++++++
+ .../lib/Driver/ToolChains/Gnu.cpp                           | 13 ++++++++++---
+ .../lib/Driver/ToolChains/Linux.cpp                         |  5 +++--
+ 4 files changed, 31 insertions(+), 5 deletions(-)
+
+diff --git clang-12.0.1.src/include/clang/Driver/Distro.h clang-12.0.1.src-diff/include/clang/Driver/Distro.h
+index 0e98d00..07d2097 100644
+--- clang-12.0.1.src/include/clang/Driver/Distro.h
++++ clang-12.0.1.src-diff/include/clang/Driver/Distro.h
+@@ -41,8 +41,10 @@ public:
      RHEL5,
      RHEL6,
      RHEL7,
@@ -12,7 +19,7 @@ diff -Naur clang-9.0.1.src-orig/include/clang/Driver/Distro.h clang-9.0.1.src/in
      OpenSUSE,
      UbuntuHardy,
      UbuntuIntrepid,
-@@ -109,6 +111,10 @@
+@@ -115,6 +117,10 @@ public:
      return DistroVal == Fedora || (DistroVal >= RHEL5 && DistroVal <= RHEL7);
    }
  
@@ -20,12 +27,12 @@ diff -Naur clang-9.0.1.src-orig/include/clang/Driver/Distro.h clang-9.0.1.src/in
 +    return DistroVal == ROSA;
 +  }
 +
-   bool IsOpenSUSE() const {
-     return DistroVal == OpenSUSE;
-   }
-@@ -129,6 +135,9 @@
-     return DistroVal == Gentoo;
-   }
+   bool IsOpenSUSE() const { return DistroVal == OpenSUSE; }
+ 
+   bool IsDebian() const {
+@@ -129,6 +135,9 @@ public:
+ 
+   bool IsGentoo() const { return DistroVal == Gentoo; }
  
 +  bool IsMandriva() const {
 +    return DistroVal == OpenMandriva;
@@ -33,24 +40,31 @@ diff -Naur clang-9.0.1.src-orig/include/clang/Driver/Distro.h clang-9.0.1.src/in
    /// @}
  };
  
-diff -Naur clang-9.0.1.src-orig/lib/Driver/Distro.cpp clang-9.0.1.src/lib/Driver/Distro.cpp
---- clang-9.0.1.src-orig/lib/Driver/Distro.cpp	2019-12-11 22:15:30.000000000 +0300
-+++ clang-9.0.1.src/lib/Driver/Distro.cpp	2020-02-14 19:50:25.775772017 +0300
-@@ -57,6 +57,10 @@
-       return Version;
+diff --git clang-12.0.1.src/lib/Driver/Distro.cpp clang-12.0.1.src-diff/lib/Driver/Distro.cpp
+index ee4fe84..1385c31 100644
+--- clang-12.0.1.src/lib/Driver/Distro.cpp
++++ clang-12.0.1.src-diff/lib/Driver/Distro.cpp
+@@ -126,6 +126,15 @@ static Distro::DistroType DetectDistro(llvm::vfs::FileSystem &VFS) {
+     return Distro::UnknownDistro;
    }
  
-+  File = VFS.getBufferForFile("/etc/rosa-release");
-+  if (File)
++File = VFS.getBufferForFile("/etc/rosa-release");
++if (File) {
++    StringRef Data = File.get()->getBuffer();
 +    return Distro::ROSA;
 +
-   File = VFS.getBufferForFile("/etc/redhat-release");
++    return Distro::UnknownDistro;
++  }
++
++
+   // ...for Debian
+   File = VFS.getBufferForFile("/etc/debian_version");
    if (File) {
-     StringRef Data = File.get()->getBuffer();
-diff -Naur clang-9.0.1.src-orig/lib/Driver/ToolChains/Gnu.cpp clang-9.0.1.src/lib/Driver/ToolChains/Gnu.cpp
---- clang-9.0.1.src-orig/lib/Driver/ToolChains/Gnu.cpp	2019-12-11 22:15:30.000000000 +0300
-+++ clang-9.0.1.src/lib/Driver/ToolChains/Gnu.cpp	2020-02-14 19:19:59.341584610 +0300
-@@ -1927,7 +1927,9 @@
+diff --git clang-12.0.1.src/lib/Driver/ToolChains/Gnu.cpp clang-12.0.1.src-diff/lib/Driver/ToolChains/Gnu.cpp
+index 1d8a3cd..1abd2aa 100644
+--- clang-12.0.1.src/lib/Driver/ToolChains/Gnu.cpp
++++ clang-12.0.1.src-diff/lib/Driver/ToolChains/Gnu.cpp
+@@ -2075,7 +2075,9 @@ void Generic_GCC::GCCInstallationDetector::AddDefaultGCCPrefixes(
    static const char *const AArch64LibDirs[] = {"/lib64", "/lib"};
    static const char *const AArch64Triples[] = {
        "aarch64-none-linux-gnu", "aarch64-linux-gnu", "aarch64-redhat-linux",
@@ -61,7 +75,7 @@ diff -Naur clang-9.0.1.src-orig/lib/Driver/ToolChains/Gnu.cpp clang-9.0.1.src/li
    static const char *const AArch64beLibDirs[] = {"/lib"};
    static const char *const AArch64beTriples[] = {"aarch64_be-none-linux-gnu",
                                                   "aarch64_be-linux-gnu"};
-@@ -1937,6 +1939,8 @@
+@@ -2085,6 +2087,8 @@ void Generic_GCC::GCCInstallationDetector::AddDefaultGCCPrefixes(
                                             "arm-linux-androideabi"};
    static const char *const ARMHFTriples[] = {"arm-linux-gnueabihf",
                                               "armv7hl-redhat-linux-gnueabi",
@@ -70,7 +84,7 @@ diff -Naur clang-9.0.1.src-orig/lib/Driver/ToolChains/Gnu.cpp clang-9.0.1.src/li
                                               "armv6hl-suse-linux-gnueabi",
                                               "armv7hl-suse-linux-gnueabi"};
    static const char *const ARMebLibDirs[] = {"/lib"};
-@@ -1955,7 +1959,8 @@
+@@ -2103,7 +2107,8 @@ void Generic_GCC::GCCInstallationDetector::AddDefaultGCCPrefixes(
        "x86_64-redhat-linux",    "x86_64-suse-linux",
        "x86_64-manbo-linux-gnu", "x86_64-linux-gnu",
        "x86_64-slackware-linux", "x86_64-unknown-linux",
@@ -80,7 +94,7 @@ diff -Naur clang-9.0.1.src-orig/lib/Driver/ToolChains/Gnu.cpp clang-9.0.1.src/li
    static const char *const X32LibDirs[] = {"/libx32"};
    static const char *const X86LibDirs[] = {"/lib32", "/lib"};
    static const char *const X86Triples[] = {
-@@ -1964,7 +1969,9 @@
+@@ -2112,7 +2117,9 @@ void Generic_GCC::GCCInstallationDetector::AddDefaultGCCPrefixes(
        "i586-redhat-linux",    "i386-redhat-linux",     "i586-suse-linux",
        "i486-slackware-linux", "i686-montavista-linux", "i586-linux-gnu",
        "i686-linux-android",   "i386-gnu",              "i486-gnu",
@@ -91,10 +105,11 @@ diff -Naur clang-9.0.1.src-orig/lib/Driver/ToolChains/Gnu.cpp clang-9.0.1.src/li
  
    static const char *const MIPSLibDirs[] = {"/lib"};
    static const char *const MIPSTriples[] = {
-diff -Naur clang-9.0.1.src-orig/lib/Driver/ToolChains/Linux.cpp clang-9.0.1.src/lib/Driver/ToolChains/Linux.cpp
---- clang-9.0.1.src-orig/lib/Driver/ToolChains/Linux.cpp	2019-12-11 22:15:30.000000000 +0300
-+++ clang-9.0.1.src/lib/Driver/ToolChains/Linux.cpp	2020-02-14 19:35:44.855908872 +0300
-@@ -248,7 +248,7 @@
+diff --git clang-12.0.1.src/lib/Driver/ToolChains/Linux.cpp clang-12.0.1.src-diff/lib/Driver/ToolChains/Linux.cpp
+index 9663a73..e2ca948 100644
+--- clang-12.0.1.src/lib/Driver/ToolChains/Linux.cpp
++++ clang-12.0.1.src-diff/lib/Driver/ToolChains/Linux.cpp
+@@ -231,7 +231,7 @@ Linux::Linux(const Driver &D, const llvm::Triple &Triple, const ArgList &Args)
    }
  
    if (Distro.IsOpenSUSE() || Distro.IsUbuntu() || Distro.IsAlpineLinux() ||
@@ -103,7 +118,7 @@ diff -Naur clang-9.0.1.src-orig/lib/Driver/ToolChains/Linux.cpp clang-9.0.1.src/
      ExtraOpts.push_back("-z");
      ExtraOpts.push_back("relro");
    }
-@@ -289,6 +289,7 @@
+@@ -271,6 +271,7 @@ Linux::Linux(const Driver &D, const llvm::Triple &Triple, const ArgList &Args)
    // Hexagon linker/loader does not support .gnu.hash
    if (!IsMips && !IsHexagon) {
      if (Distro.IsRedhat() || Distro.IsOpenSUSE() || Distro.IsAlpineLinux() ||
@@ -111,7 +126,7 @@ diff -Naur clang-9.0.1.src-orig/lib/Driver/ToolChains/Linux.cpp clang-9.0.1.src/
          (Distro.IsUbuntu() && Distro >= Distro::UbuntuMaverick) ||
          (IsAndroid && !Triple.isAndroidVersionLT(23)))
        ExtraOpts.push_back("--hash-style=gnu");
-@@ -304,7 +305,7 @@
+@@ -286,7 +287,7 @@ Linux::Linux(const Driver &D, const llvm::Triple &Triple, const ArgList &Args)
    ExtraOpts.push_back("--build-id");
  #endif
  
diff --git a/llvm.spec b/llvm.spec
index 338bd2f..2e0d6a6 100644
--- a/llvm.spec
+++ b/llvm.spec
@@ -14,7 +14,7 @@
 
 %bcond_without clang
 
-%define maj_ver 11
+%define maj_ver 12
 %define major_ver %{maj_ver}.0
 %define minor_ver 1
 
@@ -33,7 +33,7 @@
 Summary:	Low Level Virtual Machine (LLVM)
 Name:		llvm
 Version:	%{major_ver}.%{minor_ver}
-Release:	3
+Release:	1
 License:	NCSA
 Group:		Development/Other
 Url:		http://llvm.org