diff --git a/.copr/Makefile b/.copr/Makefile
new file mode 100644
index 0000000..753982b
--- /dev/null
+++ b/.copr/Makefile
@@ -0,0 +1,17 @@
+# See https://docs.pagure.org/copr.copr/user_documentation.html#make-srpm
+# See for the --setopt option in the enabling of copr repo see:
+# https://pagure.io/copr/copr/issue/184
+
+COPR_USERNAME=$(shell rpm --eval %copr_username)
+COPR_PROJECT=$(shell rpm --eval %copr_projectname)
+
+.PHONY: srpm
+srpm:
+	dnf install -y dnf-plugins-core fedora-packager
+	dnf copr enable -y --setopt=reposdir=/tmp/yum.repos.d $(COPR_USERNAME)/$(COPR_PROJECT)
+	dnf install -y --setopt=reposdir=/tmp/yum.repos.d llvm-snapshot-builder
+	rpmbuild \
+		--define "_srcrpmdir $(outdir)" \
+		--define "_sourcedir $(shell pwd)" \
+		--define "_disable_source_fetch 0" \
+		-bs $(spec)
diff --git a/0001-SystemZ-Improve-error-messages-for-unsupported-reloc.patch b/0001-SystemZ-Improve-error-messages-for-unsupported-reloc.patch
deleted file mode 100644
index 34128b6..0000000
--- a/0001-SystemZ-Improve-error-messages-for-unsupported-reloc.patch
+++ /dev/null
@@ -1,184 +0,0 @@
-From efbaf8bc61f4c0e29a3eaafb11ac0ddda8bd3dff Mon Sep 17 00:00:00 2001
-From: Ulrich Weigand <ulrich.weigand@de.ibm.com>
-Date: Fri, 30 Jun 2023 16:02:56 +0200
-Subject: [PATCH] [SystemZ] Improve error messages for unsupported relocations
-
-In the SystemZMCObjectWriter, we currently just abort in case
-some unsupported relocation in requested.  However, as this
-situation can be triggered by invalid (inline) assembler input,
-we should really get a regular error message instead.
----
- .../MCTargetDesc/SystemZMCObjectWriter.cpp    | 59 +++++++++++--------
- 1 file changed, 35 insertions(+), 24 deletions(-)
-
-diff --git a/llvm/lib/Target/SystemZ/MCTargetDesc/SystemZMCObjectWriter.cpp b/llvm/lib/Target/SystemZ/MCTargetDesc/SystemZMCObjectWriter.cpp
-index c23463ab9bde..0b11468afc52 100644
---- a/llvm/lib/Target/SystemZ/MCTargetDesc/SystemZMCObjectWriter.cpp
-+++ b/llvm/lib/Target/SystemZ/MCTargetDesc/SystemZMCObjectWriter.cpp
-@@ -9,6 +9,7 @@
- #include "MCTargetDesc/SystemZMCFixups.h"
- #include "MCTargetDesc/SystemZMCTargetDesc.h"
- #include "llvm/BinaryFormat/ELF.h"
-+#include "llvm/MC/MCContext.h"
- #include "llvm/MC/MCELFObjectWriter.h"
- #include "llvm/MC/MCExpr.h"
- #include "llvm/MC/MCFixup.h"
-@@ -40,7 +41,7 @@ SystemZObjectWriter::SystemZObjectWriter(uint8_t OSABI)
-                             /*HasRelocationAddend_=*/ true) {}
- 
- // Return the relocation type for an absolute value of MCFixupKind Kind.
--static unsigned getAbsoluteReloc(unsigned Kind) {
-+static unsigned getAbsoluteReloc(MCContext &Ctx, SMLoc Loc, unsigned Kind) {
-   switch (Kind) {
-   case FK_Data_1: return ELF::R_390_8;
-   case FK_Data_2: return ELF::R_390_16;
-@@ -49,11 +50,12 @@ static unsigned getAbsoluteReloc(unsigned Kind) {
-   case SystemZ::FK_390_12: return ELF::R_390_12;
-   case SystemZ::FK_390_20: return ELF::R_390_20;
-   }
--  llvm_unreachable("Unsupported absolute address");
-+  Ctx.reportError(Loc, "Unsupported absolute address");
-+  return 0;
- }
- 
- // Return the relocation type for a PC-relative value of MCFixupKind Kind.
--static unsigned getPCRelReloc(unsigned Kind) {
-+static unsigned getPCRelReloc(MCContext &Ctx, SMLoc Loc, unsigned Kind) {
-   switch (Kind) {
-   case FK_Data_2:                return ELF::R_390_PC16;
-   case FK_Data_4:                return ELF::R_390_PC32;
-@@ -63,62 +65,69 @@ static unsigned getPCRelReloc(unsigned Kind) {
-   case SystemZ::FK_390_PC24DBL:  return ELF::R_390_PC24DBL;
-   case SystemZ::FK_390_PC32DBL:  return ELF::R_390_PC32DBL;
-   }
--  llvm_unreachable("Unsupported PC-relative address");
-+  Ctx.reportError(Loc, "Unsupported PC-relative address");
-+  return 0;
- }
- 
- // Return the R_390_TLS_LE* relocation type for MCFixupKind Kind.
--static unsigned getTLSLEReloc(unsigned Kind) {
-+static unsigned getTLSLEReloc(MCContext &Ctx, SMLoc Loc, unsigned Kind) {
-   switch (Kind) {
-   case FK_Data_4: return ELF::R_390_TLS_LE32;
-   case FK_Data_8: return ELF::R_390_TLS_LE64;
-   }
--  llvm_unreachable("Unsupported absolute address");
-+  Ctx.reportError(Loc, "Unsupported thread-local address (local-exec)");
-+  return 0;
- }
- 
- // Return the R_390_TLS_LDO* relocation type for MCFixupKind Kind.
--static unsigned getTLSLDOReloc(unsigned Kind) {
-+static unsigned getTLSLDOReloc(MCContext &Ctx, SMLoc Loc, unsigned Kind) {
-   switch (Kind) {
-   case FK_Data_4: return ELF::R_390_TLS_LDO32;
-   case FK_Data_8: return ELF::R_390_TLS_LDO64;
-   }
--  llvm_unreachable("Unsupported absolute address");
-+  Ctx.reportError(Loc, "Unsupported thread-local address (local-dynamic)");
-+  return 0;
- }
- 
- // Return the R_390_TLS_LDM* relocation type for MCFixupKind Kind.
--static unsigned getTLSLDMReloc(unsigned Kind) {
-+static unsigned getTLSLDMReloc(MCContext &Ctx, SMLoc Loc, unsigned Kind) {
-   switch (Kind) {
-   case FK_Data_4: return ELF::R_390_TLS_LDM32;
-   case FK_Data_8: return ELF::R_390_TLS_LDM64;
-   case SystemZ::FK_390_TLS_CALL: return ELF::R_390_TLS_LDCALL;
-   }
--  llvm_unreachable("Unsupported absolute address");
-+  Ctx.reportError(Loc, "Unsupported thread-local address (local-dynamic)");
-+  return 0;
- }
- 
- // Return the R_390_TLS_GD* relocation type for MCFixupKind Kind.
--static unsigned getTLSGDReloc(unsigned Kind) {
-+static unsigned getTLSGDReloc(MCContext &Ctx, SMLoc Loc, unsigned Kind) {
-   switch (Kind) {
-   case FK_Data_4: return ELF::R_390_TLS_GD32;
-   case FK_Data_8: return ELF::R_390_TLS_GD64;
-   case SystemZ::FK_390_TLS_CALL: return ELF::R_390_TLS_GDCALL;
-   }
--  llvm_unreachable("Unsupported absolute address");
-+  Ctx.reportError(Loc, "Unsupported thread-local address (general-dynamic)");
-+  return 0;
- }
- 
- // Return the PLT relocation counterpart of MCFixupKind Kind.
--static unsigned getPLTReloc(unsigned Kind) {
-+static unsigned getPLTReloc(MCContext &Ctx, SMLoc Loc, unsigned Kind) {
-   switch (Kind) {
-   case SystemZ::FK_390_PC12DBL: return ELF::R_390_PLT12DBL;
-   case SystemZ::FK_390_PC16DBL: return ELF::R_390_PLT16DBL;
-   case SystemZ::FK_390_PC24DBL: return ELF::R_390_PLT24DBL;
-   case SystemZ::FK_390_PC32DBL: return ELF::R_390_PLT32DBL;
-   }
--  llvm_unreachable("Unsupported absolute address");
-+  Ctx.reportError(Loc, "Unsupported PC-relative PLT address");
-+  return 0;
- }
- 
- unsigned SystemZObjectWriter::getRelocType(MCContext &Ctx,
-                                            const MCValue &Target,
-                                            const MCFixup &Fixup,
-                                            bool IsPCRel) const {
-+  SMLoc Loc = Fixup.getLoc();
-   unsigned Kind = Fixup.getKind();
-   if (Kind >= FirstLiteralRelocationKind)
-     return Kind - FirstLiteralRelocationKind;
-@@ -126,38 +135,40 @@ unsigned SystemZObjectWriter::getRelocType(MCContext &Ctx,
-   switch (Modifier) {
-   case MCSymbolRefExpr::VK_None:
-     if (IsPCRel)
--      return getPCRelReloc(Kind);
--    return getAbsoluteReloc(Kind);
-+      return getPCRelReloc(Ctx, Loc, Kind);
-+    return getAbsoluteReloc(Ctx, Loc, Kind);
- 
-   case MCSymbolRefExpr::VK_NTPOFF:
-     assert(!IsPCRel && "NTPOFF shouldn't be PC-relative");
--    return getTLSLEReloc(Kind);
-+    return getTLSLEReloc(Ctx, Loc, Kind);
- 
-   case MCSymbolRefExpr::VK_INDNTPOFF:
-     if (IsPCRel && Kind == SystemZ::FK_390_PC32DBL)
-       return ELF::R_390_TLS_IEENT;
--    llvm_unreachable("Only PC-relative INDNTPOFF accesses are supported for now");
-+    Ctx.reportError(Loc, "Only PC-relative INDNTPOFF accesses are supported for now");
-+    return 0;
- 
-   case MCSymbolRefExpr::VK_DTPOFF:
-     assert(!IsPCRel && "DTPOFF shouldn't be PC-relative");
--    return getTLSLDOReloc(Kind);
-+    return getTLSLDOReloc(Ctx, Loc, Kind);
- 
-   case MCSymbolRefExpr::VK_TLSLDM:
-     assert(!IsPCRel && "TLSLDM shouldn't be PC-relative");
--    return getTLSLDMReloc(Kind);
-+    return getTLSLDMReloc(Ctx, Loc, Kind);
- 
-   case MCSymbolRefExpr::VK_TLSGD:
-     assert(!IsPCRel && "TLSGD shouldn't be PC-relative");
--    return getTLSGDReloc(Kind);
-+    return getTLSGDReloc(Ctx, Loc, Kind);
- 
-   case MCSymbolRefExpr::VK_GOT:
-     if (IsPCRel && Kind == SystemZ::FK_390_PC32DBL)
-       return ELF::R_390_GOTENT;
--    llvm_unreachable("Only PC-relative GOT accesses are supported for now");
-+    Ctx.reportError(Loc, "Only PC-relative GOT accesses are supported for now");
-+    return 0;
- 
-   case MCSymbolRefExpr::VK_PLT:
--    assert(IsPCRel && "@PLT shouldt be PC-relative");
--    return getPLTReloc(Kind);
-+    assert(IsPCRel && "@PLT shouldn't be PC-relative");
-+    return getPLTReloc(Ctx, Loc, Kind);
- 
-   default:
-     llvm_unreachable("Modifier not supported");
--- 
-2.41.0
-
diff --git a/0001-cmake-Add-LLVM_UNITTEST_LINK_FLAGS-option.patch b/0001-cmake-Add-LLVM_UNITTEST_LINK_FLAGS-option.patch
deleted file mode 100644
index 192ca92..0000000
--- a/0001-cmake-Add-LLVM_UNITTEST_LINK_FLAGS-option.patch
+++ /dev/null
@@ -1,39 +0,0 @@
-From cf35b4622d31701d0c79e0441931518726f997f2 Mon Sep 17 00:00:00 2001
-From: Nikita Popov <npopov@redhat.com>
-Date: Fri, 30 Jun 2023 12:25:09 +0200
-Subject: [PATCH] Add LLVM_UNITTEST_LINK_FLAGS option
-
-This allows specifying linker flags that should only be applied
-to unit tests, e.g. to disable LTO optimization for them.
----
- llvm/cmake/modules/AddLLVM.cmake           | 2 ++
- llvm/cmake/modules/HandleLLVMOptions.cmake | 3 +++
- 2 files changed, 5 insertions(+)
-
-diff --git a/llvm/cmake/modules/AddLLVM.cmake b/llvm/cmake/modules/AddLLVM.cmake
-index 94fc83db9344..7cf75223ce38 100644
---- a/llvm/cmake/modules/AddLLVM.cmake
-+++ b/llvm/cmake/modules/AddLLVM.cmake
-@@ -1592,6 +1592,8 @@ function(add_unittest test_suite test_name)
-     endif()
-   endif()
- 
-+  target_link_options(${test_name} PRIVATE "${LLVM_UNITTEST_LINK_FLAGS}")
-+
-   set(outdir ${CMAKE_CURRENT_BINARY_DIR}/${CMAKE_CFG_INTDIR})
-   set_output_directory(${test_name} BINARY_DIR ${outdir} LIBRARY_DIR ${outdir})
-   # libpthreads overrides some standard library symbols, so main
-diff --git a/llvm/cmake/modules/HandleLLVMOptions.cmake b/llvm/cmake/modules/HandleLLVMOptions.cmake
-index 6119ecdce0f4..eec98162c2d7 100644
---- a/llvm/cmake/modules/HandleLLVMOptions.cmake
-+++ b/llvm/cmake/modules/HandleLLVMOptions.cmake
-@@ -1274,3 +1274,6 @@ endif()
- 
- set(LLVM_THIRD_PARTY_DIR  ${CMAKE_CURRENT_SOURCE_DIR}/../third-party CACHE STRING
-     "Directory containing third party software used by LLVM (e.g. googletest)")
-+
-+set(LLVM_UNITTEST_LINK_FLAGS "" CACHE STRING
-+    "Additional linker flags for unit tests")
--- 
-2.40.1
-
diff --git a/0001-llvm-Add-install-targets-for-gtest.patch b/0001-llvm-Add-install-targets-for-gtest.patch
deleted file mode 100644
index e84c444..0000000
--- a/0001-llvm-Add-install-targets-for-gtest.patch
+++ /dev/null
@@ -1,32 +0,0 @@
-From 8cc3870f09d728d9017c72eba9520117a4283fee Mon Sep 17 00:00:00 2001
-From: Tom Stellard <tstellar@redhat.com>
-Date: Thu, 17 Nov 2022 09:01:10 +0000
-Subject: Add install targets for gtest
-
-Stand-alone builds need an installed version of gtest in order to run
-the unittests.
-
-Differential Revision: https://reviews.llvm.org/D137890
----
- llvm/CMakeLists.txt | 5 +++++
- 1 file changed, 5 insertions(+)
-
-diff --git a/llvm/CMakeLists.txt b/llvm/CMakeLists.txt
-index 60e1f29620af..d91338532815 100644
---- a/llvm/CMakeLists.txt
-+++ b/llvm/CMakeLists.txt
-@@ -693,6 +693,11 @@ option(LLVM_BUILD_TESTS
-   "Build LLVM unit tests. If OFF, just generate build targets." OFF)
- option(LLVM_INCLUDE_TESTS "Generate build targets for the LLVM unit tests." ON)
- 
-+option(LLVM_INSTALL_GTEST
-+  "Install the llvm gtest library.  This should be on if you want to do
-+   stand-alone builds of the other projects and run their unit tests." OFF)
-+
-+
- option(LLVM_BUILD_BENCHMARKS "Add LLVM benchmark targets to the list of default
- targets. If OFF, benchmarks still could be built using Benchmarks target." OFF)
- option(LLVM_INCLUDE_BENCHMARKS "Generate benchmark targets. If OFF, benchmarks can't be built." ON)
--- 
-2.34.3
-
diff --git a/0201-third-party-Add-install-targets-for-gtest.patch b/0201-third-party-Add-install-targets-for-gtest.patch
deleted file mode 100644
index 5c86130..0000000
--- a/0201-third-party-Add-install-targets-for-gtest.patch
+++ /dev/null
@@ -1,47 +0,0 @@
-From 8cc3870f09d728d9017c72eba9520117a4283fee Mon Sep 17 00:00:00 2001
-From: Tom Stellard <tstellar@redhat.com>
-Date: Thu, 17 Nov 2022 09:01:10 +0000
-Subject: Add install targets for gtest
-
-Stand-alone builds need an installed version of gtest in order to run
-the unittests.
-
-Differential Revision: https://reviews.llvm.org/D137890
----
- third-party/unittest/CMakeLists.txt | 15 ++++++++++++++-
- 1 file changed, 14 insertions(+), 1 deletion(-)
-
-diff --git a/third-party/unittest/CMakeLists.txt b/third-party/unittest/CMakeLists.txt
-index 0e54e0e57c35..1d2a52730d7d 100644
---- a/third-party/unittest/CMakeLists.txt
-+++ b/third-party/unittest/CMakeLists.txt
-@@ -65,12 +65,25 @@ if (NOT LLVM_ENABLE_THREADS)
- endif ()
- 
- target_include_directories(llvm_gtest
--  PUBLIC googletest/include googlemock/include
-+  PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/googletest/include>
-+         $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/googlemock/include>
-+         $<INSTALL_INTERFACE:include/llvm-gtest/>
-+         $<INSTALL_INTERFACE:include/llvm-gmock/>
-   PRIVATE googletest googlemock
-   )
- 
- add_subdirectory(UnitTestMain)
- 
-+if (LLVM_INSTALL_GTEST)
-+export(TARGETS llvm_gtest llvm_gtest_main LLVMTestingSupport FILE LLVMGTestConfig.cmake)
-+install(TARGETS llvm_gtest llvm_gtest_main LLVMTestingSupport EXPORT LLVMGTestConfig
-+  ARCHIVE DESTINATION "lib${LLVM_LIBDIR_SUFFIX}" COMPONENT llvm_gtest)
-+  install(EXPORT LLVMGTestConfig DESTINATION ${LLVM_INSTALL_PACKAGE_DIR} COMPONENT llvm_gtest)
-+    add_llvm_install_targets(install-llvm_gtest COMPONENT llvm_gtest DEPENDS llvm_gtest LLVMGTestConfig.cmake)
-+  install(DIRECTORY googletest/include/gtest/ DESTINATION include/llvm-gtest/gtest/ COMPONENT llvm_gtest)
-+  install(DIRECTORY googlemock/include/gmock/ DESTINATION include/llvm-gmock/gmock/ COMPONENT llvm_gtest)
-+endif()
-+
- # When LLVM_LINK_LLVM_DYLIB is enabled, libLLVM.so is added to the interface
- # link libraries for gtest and gtest_main.  This means that any target, like
- # unittests for example, that links against gtest will be forced to link
--- 
-2.34.3
-
diff --git a/llvm.spec b/llvm.spec
index c6ed0aa..e07e711 100644
--- a/llvm.spec
+++ b/llvm.spec
@@ -1,3 +1,10 @@
+%bcond_with snapshot_build
+
+%if %{with snapshot_build}
+# Unlock LLVM Snapshot LUA functions
+%{llvm_sb}
+%endif
+
 # We are building with clang for faster/lower memory LTO builds.
 # See https://docs.fedoraproject.org/en-US/packaging-guidelines/#_compiler_macros
 %global toolchain clang
@@ -17,10 +24,18 @@
 %bcond_with compat_build
 %bcond_without check
 
-#global rc_ver 4
-%global maj_ver 16
+%global maj_ver 17
 %global min_ver 0
-%global patch_ver 6
+%global patch_ver 0
+%global rc_ver 1
+
+%if %{with snapshot_build}
+%undefine rc_ver
+%global maj_ver %{llvm_snapshot_version_major}
+%global min_ver %{llvm_snapshot_version_minor}
+%global patch_ver %{llvm_snapshot_version_patch}
+%endif
+
 %global llvm_srcdir llvm-%{maj_ver}.%{min_ver}.%{patch_ver}%{?rc_ver:rc%{rc_ver}}.src
 %global cmake_srcdir cmake-%{maj_ver}.%{min_ver}.%{patch_ver}%{?rc_ver:rc%{rc_ver}}.src
 %global third_party_srcdir third-party-%{maj_ver}.%{min_ver}.%{patch_ver}%{?rc_ver:rc%{rc_ver}}.src
@@ -74,12 +89,18 @@
 %undefine _py3_shebang_P
 
 Name:		%{pkg_name}
-Version:	%{maj_ver}.%{min_ver}.%{patch_ver}%{?rc_ver:~rc%{rc_ver}}
-Release:	6%{?dist}
+Version:	%{maj_ver}.%{min_ver}.%{patch_ver}%{?rc_ver:~rc%{rc_ver}}%{?llvm_snapshot_version_suffix:~%{llvm_snapshot_version_suffix}}
+Release:	1%{?dist}
 Summary:	The Low Level Virtual Machine
 
 License:	Apache-2.0 WITH LLVM-exception OR NCSA
 URL:		http://llvm.org
+%if %{with snapshot_build}
+Source0:	%{llvm_snapshot_source_prefix}llvm-%{llvm_snapshot_yyyymmdd}.src.tar.xz
+Source2:	%{llvm_snapshot_source_prefix}cmake-%{llvm_snapshot_yyyymmdd}.src.tar.xz
+Source4:	%{llvm_snapshot_source_prefix}third-party-%{llvm_snapshot_yyyymmdd}.src.tar.xz
+%{llvm_snapshot_extra_source_tags}
+%else
 Source0:	https://github.com/llvm/llvm-project/releases/download/llvmorg-%{maj_ver}.%{min_ver}.%{patch_ver}%{?rc_ver:-rc%{rc_ver}}/%{llvm_srcdir}.tar.xz
 Source1:	https://github.com/llvm/llvm-project/releases/download/llvmorg-%{maj_ver}.%{min_ver}.%{patch_ver}%{?rc_ver:-rc%{rc_ver}}/%{llvm_srcdir}.tar.xz.sig
 Source2:	https://github.com/llvm/llvm-project/releases/download/llvmorg-%{maj_ver}.%{min_ver}.%{patch_ver}%{?rc_ver:-rc%{rc_ver}}/%{cmake_srcdir}.tar.xz
@@ -88,19 +109,9 @@ Source4:	https://github.com/llvm/llvm-project/releases/download/llvmorg-%{maj_ve
 Source5:	https://github.com/llvm/llvm-project/releases/download/llvmorg-%{maj_ver}.%{min_ver}.%{patch_ver}%{?rc_ver:-rc%{rc_ver}}/%{third_party_srcdir}.tar.xz.sig
 Source6:	release-keys.asc
 
-# Backported from LLVM 17
-Patch1:		0001-SystemZ-Improve-error-messages-for-unsupported-reloc.patch
-# See https://reviews.llvm.org/D137890 for the next two patches
-Patch2:		0001-llvm-Add-install-targets-for-gtest.patch
-# Backport of https://reviews.llvm.org/D154212 from LLVM 17.
-Patch3: 0001-cmake-Add-LLVM_UNITTEST_LINK_FLAGS-option.patch
-# Backport of https://reviews.llvm.org/D156379 from LLVM 18.
-Patch4:		D156379.diff
-
 # RHEL-specific patch to avoid unwanted recommonmark dep
 Patch101:	0101-Deactivate-markdown-doc.patch
-# Patching third-party dir with a 200 offset in patch number
-Patch201:	0201-third-party-Add-install-targets-for-gtest.patch
+%endif
 
 BuildRequires:	gcc
 BuildRequires:	gcc-c++
@@ -151,14 +162,15 @@ Requires:	%{name}-libs%{?_isa} = %{version}-%{release}
 # app that requires the libLLVMLineEditor, so we need to make sure
 # libedit-devel is available.
 Requires:	libedit-devel
-# The installed cmake files reference binaries from llvm-test and llvm-static.
-# We tried in the past to split the cmake exports for these binaries out into
-# separate files, so that llvm-devel would not need to Require these packages,
+# The installed cmake files reference binaries from llvm-test, llvm-static, and
+# llvm-gtest.  We tried in the past to split the cmake exports for these binaries
+# out into separate files, so that llvm-devel would not need to Require these packages,
 # but this caused bugs (rhbz#1773678) and forced us to carry two non-upstream
 # patches.
 Requires:	%{name}-static%{?_isa} = %{version}-%{release}
 %if %{without compat_build}
 Requires:	%{name}-test%{?_isa} = %{version}-%{release}
+Requires:	%{name}-googletest%{?_isa} = %{version}-%{release}
 %endif
 
 
@@ -222,16 +234,17 @@ LLVM's modified googletest sources.
 %endif
 
 %prep
+%if %{without snapshot_build}
 %{gpgverify} --keyring='%{SOURCE6}' --signature='%{SOURCE1}' --data='%{SOURCE0}'
 %{gpgverify} --keyring='%{SOURCE6}' --signature='%{SOURCE3}' --data='%{SOURCE2}'
 %{gpgverify} --keyring='%{SOURCE6}' --signature='%{SOURCE5}' --data='%{SOURCE4}'
+%endif
 %setup -T -q -b 2 -n %{cmake_srcdir}
 # TODO: It would be more elegant to set -DLLVM_COMMON_CMAKE_UTILS=%{_builddir}/%{cmake_srcdir},
 # but this is not a CACHED variable, so we can't actually set it externally :(
 cd ..
 mv %{cmake_srcdir} cmake
 %setup -T -q -b 4 -n %{third_party_srcdir}
-%autopatch -m200 -p2
 cd ..
 mv %{third_party_srcdir} third-party
 
@@ -245,6 +258,11 @@ mv %{third_party_srcdir} third-party
 
 %build
 
+# Disable LTO to speed up builds
+%if %{with snapshot_build}
+%global _lto_cflags %nil
+%endif
+
 %ifarch s390 s390x %{arm} %ix86
 # Decrease debuginfo verbosity to reduce memory consumption during final library linking
 %global optflags %(echo %{optflags} | sed 's/-g /-g1 /')
@@ -313,8 +331,12 @@ export ASMFLAGS="%{build_cflags}"
 	-DLLVM_ENABLE_SPHINX:BOOL=ON \
 	-DLLVM_ENABLE_DOXYGEN:BOOL=OFF \
 	\
+%if %{with snapshot_build}
+	-DLLVM_VERSION_SUFFIX="%{llvm_snapshot_version_suffix}" \
+%else
 %if %{without compat_build}
 	-DLLVM_VERSION_SUFFIX='' \
+%endif
 %endif
 	-DLLVM_UNREACHABLE_OPTIMIZE:BOOL=OFF \
 	-DLLVM_BUILD_LLVM_DYLIB:BOOL=ON \
@@ -495,7 +517,7 @@ fi
 
 %files libs
 %license LICENSE.TXT
-%{install_libdir}/libLLVM-%{maj_ver}.so
+%{install_libdir}/libLLVM-%{maj_ver}%{?llvm_snapshot_version_suffix:%{llvm_snapshot_version_suffix}}.so
 %if %{without compat_build}
 %if %{with gold}
 %{_libdir}/LLVMgold.so
@@ -575,6 +597,11 @@ fi
 %endif
 
 %changelog
+%{?llvm_snapshot_changelog_entry}
+
+* Mon Jul 31 2023 Tulio Magno Quites Machado Filho <tuliom@redhat.com> - 17.0.0~rc1-1
+- Update to LLVM 17.0.0 RC1
+
 * Mon Jul 31 2023 Tulio Magno Quites Machado Filho <tuliom@redhat.com> - 16.0.6-6
 - Fix rhbz #2224885
 
diff --git a/sources b/sources
index 30ea4ea..b3a6c97 100644
--- a/sources
+++ b/sources
@@ -1,6 +1,6 @@
-SHA512 (llvm-16.0.6.src.tar.xz) = 8d4cdadc9a1ad249fbf9248c8e56f3bcafab73a473a0b0ca73499ed8825c62e27668aac4f1d03341631e5ad93701621e834e9e196ca32eac3ef805cf1c860083
-SHA512 (llvm-16.0.6.src.tar.xz.sig) = 9adda28085f4a2e2a64dab1d8e4ff23c5629bbb0bb6b34afc081e44f6f85ac4f3c6cd0c3488af98c0fad939c33f9d2a8a0cbef67a577cd7fe3013bc2200452b1
-SHA512 (cmake-16.0.6.src.tar.xz) = 52ecd941d2d85a5b668caa5d0d40480cb6a97b3bf1174e634c2a93e9ef6d03670ca7e96abb0a60cb33ba537b93d5788754dab1f2f45c1f623f788162717d088b
-SHA512 (cmake-16.0.6.src.tar.xz.sig) = d20c5e51315aa476775e6ce886684b9f882ce283fc40aa6c1b8f03964c77a1e745e2e1fb00b3488dddfe1a04378e2bfd090350de28e58088525a5305ecb1bea6
-SHA512 (third-party-16.0.6.src.tar.xz) = 51683e92953eb57ed36ebc8a43cb688863edf4f24ba71965d57016cfdc17bad10f8f3942e9597a729329f89489597e79bb4653445ff1ec36ec03077adb1dd7b9
-SHA512 (third-party-16.0.6.src.tar.xz.sig) = aefb22ee35b2299e77669d72557079630fba5df2c0031c72a025082de3c4ca56ea0e1ec870c42d9056752195ad0e5b68258b548caf801ef4269e2ec1cd9da513
+SHA512 (cmake-17.0.0rc1.src.tar.xz) = 765113906032571abddefb4173606c80f88d564fec54e45ff76967783658cf98b2a5c40ab351dec85f91ebc346768ebcf3922afd0e25178a402a36096c8220fa
+SHA512 (cmake-17.0.0rc1.src.tar.xz.sig) = 50c4600e4e686e752d65d60a75133b0058895ee6c9fa62187269f321f9f8feef207412f5e4099eb7da0ae9c90b3f13c81a01c59fd90b2bbca83174b787fd9b84
+SHA512 (llvm-17.0.0rc1.src.tar.xz) = cb1d10a4ccf00a9b1a9a19a6ff42cf4dad832abbf7ea4e2624018c4372d62cb0b851841be02f9abab308bcaefc1d07f0512956cd752bf91d4ac79b6d1d1d37ba
+SHA512 (llvm-17.0.0rc1.src.tar.xz.sig) = 73e3a361685cb7b097a4191dc55839180db8c27f939cadd1b46fa7fb4762543867cfc170ad9042e49b4160c2a6660f0e06f8311151e45100906b28838a7ba8cc
+SHA512 (third-party-17.0.0rc1.src.tar.xz) = 740923fd1691a2f210d632896f20db6904573ab383396edae22ac238a792a73f031989a71fbfe3f46930c4fbca023133833a7d04dcbba217d9983b239ea49705
+SHA512 (third-party-17.0.0rc1.src.tar.xz.sig) = d319cdbac76f069ae41400b0320144e7a4289ae843cd63252c18d14e35e1f7f9b23169d6a2f4fbb7fae81fd0dabd32370c61bfa07742cf90a6571da443feb3cf