From ce1a4d53231637bf78eee9f422f021b3b831e4a3 Mon Sep 17 00:00:00 2001
From: Lang Hames <lhames@gmail.com>
Date: Fri, 23 Apr 2021 20:36:59 -0700
Subject: [PATCH] Revert "[ORC-RT] Initial ORC Runtime directories and build
 system files."

Some builders failed with a missing clang dependency. E.g.

CMake Error at /Users/buildslave/jenkins/workspace/clang-stage1-RA/clang-build \
  /lib/cmake/llvm/AddLLVM.cmake:1786 (add_dependencies):
The dependency target "clang" of target "check-compiler-rt" does not exist.

Reverting while I investigate.

This reverts commit 1e1d75b190c266cb11e0a6bbb4f11b810d690cc7.
---
 compiler-rt/CMakeLists.txt                         |  2 -
 compiler-rt/cmake/config-ix.cmake                  | 15 ----
 compiler-rt/lib/CMakeLists.txt                     |  4 --
 compiler-rt/lib/orc/CMakeLists.txt                 | 84 ----------------------
 compiler-rt/lib/orc/placeholder.cpp                |  1 -
 compiler-rt/test/CMakeLists.txt                    |  3 -
 compiler-rt/test/orc/CMakeLists.txt                | 26 -------
 .../test/orc/TestCases/Darwin/lit.local.cfg.py     |  2 -
 .../orc/TestCases/Darwin/x86-64/lit.local.cfg.py   |  2 -
 .../orc/TestCases/Darwin/x86-64/placeholder_test.S | 13 ----
 compiler-rt/test/orc/lit.cfg.py                    | 33 ---------
 compiler-rt/test/orc/lit.site.cfg.py.in            | 14 ----
 12 files changed, 199 deletions(-)
 delete mode 100644 compiler-rt/lib/orc/CMakeLists.txt
 delete mode 100644 compiler-rt/lib/orc/placeholder.cpp
 delete mode 100644 compiler-rt/test/orc/CMakeLists.txt
 delete mode 100644 compiler-rt/test/orc/TestCases/Darwin/lit.local.cfg.py
 delete mode 100644 compiler-rt/test/orc/TestCases/Darwin/x86-64/lit.local.cfg.py
 delete mode 100644 compiler-rt/test/orc/TestCases/Darwin/x86-64/placeholder_test.S
 delete mode 100644 compiler-rt/test/orc/lit.cfg.py
 delete mode 100644 compiler-rt/test/orc/lit.site.cfg.py.in

diff --git a/compiler-rt/CMakeLists.txt b/compiler-rt/CMakeLists.txt
index c9939ac..2d5fd9c 100644
--- a/compiler-rt/CMakeLists.txt
+++ b/compiler-rt/CMakeLists.txt
@@ -45,8 +45,6 @@ option(COMPILER_RT_BUILD_MEMPROF "Build memory profiling runtime" ON)
 mark_as_advanced(COMPILER_RT_BUILD_MEMPROF)
 option(COMPILER_RT_BUILD_XRAY_NO_PREINIT "Build xray with no preinit patching" OFF)
 mark_as_advanced(COMPILER_RT_BUILD_XRAY_NO_PREINIT)
-option(COMPILER_RT_BUILD_ORC "Build ORC runtime" ON)
-mark_as_advanced(COMPILER_RT_BUILD_ORC)
 
 set(COMPILER_RT_ASAN_SHADOW_SCALE ""
     CACHE STRING "Override the shadow scale to be used in ASan runtime")
diff --git a/compiler-rt/cmake/config-ix.cmake b/compiler-rt/cmake/config-ix.cmake
index 317c97e..47039a3 100644
--- a/compiler-rt/cmake/config-ix.cmake
+++ b/compiler-rt/cmake/config-ix.cmake
@@ -343,10 +343,6 @@ set(ALL_XRAY_SUPPORTED_ARCH ${X86_64} ${ARM32} ${ARM64} ${MIPS32} ${MIPS64} powe
 endif()
 set(ALL_SHADOWCALLSTACK_SUPPORTED_ARCH ${ARM64})
 
-if (APPLE)
-set(ALL_ORC_SUPPORTED_ARCH ${X86_64})
-endif()
-
 if(APPLE)
   include(CompilerRTDarwinUtils)
 
@@ -403,7 +399,6 @@ if(APPLE)
   set(TSAN_SUPPORTED_OS osx)
   set(XRAY_SUPPORTED_OS osx)
   set(FUZZER_SUPPORTED_OS osx)
-  set(ORC_SUPPORTED_OS osx)
 
   # Note: In order to target x86_64h on OS X the minimum deployment target must
   # be 10.8 or higher.
@@ -592,9 +587,6 @@ if(APPLE)
   list_intersect(SHADOWCALLSTACK_SUPPORTED_ARCH
     ALL_SHADOWCALLSTACK_SUPPORTED_ARCH
     SANITIZER_COMMON_SUPPORTED_ARCH)
-  list_intersect(ORC_SUPPORTED_ARCH
-    ALL_ORC_SUPPORTED_ARCH
-    SANITIZER_COMMON_SUPPORTED_ARCH)
 
 else()
   filter_available_targets(CRT_SUPPORTED_ARCH ${ALL_CRT_SUPPORTED_ARCH})
@@ -626,7 +618,6 @@ else()
   filter_available_targets(SHADOWCALLSTACK_SUPPORTED_ARCH
     ${ALL_SHADOWCALLSTACK_SUPPORTED_ARCH})
   filter_available_targets(GWP_ASAN_SUPPORTED_ARCH ${ALL_GWP_ASAN_SUPPORTED_ARCH})
-  filter_available_targets(ORC_SUPPORTED_ARCH ${ALL_ORC_SUPPORTED_ARCH})
 endif()
 
 if (MSVC)
@@ -787,12 +778,6 @@ else()
   set(COMPILER_RT_HAS_XRAY FALSE)
 endif()
 
-if (ORC_SUPPORTED_ARCH)
-  set(COMPILER_RT_HAS_ORC TRUE)
-else()
-  set(COMPILER_RT_HAS_ORC FALSE)
-endif()
-
 if (COMPILER_RT_HAS_SANITIZER_COMMON AND FUZZER_SUPPORTED_ARCH AND
     OS_NAME MATCHES "Android|Darwin|Linux|NetBSD|FreeBSD|Fuchsia|Windows")
   set(COMPILER_RT_HAS_FUZZER TRUE)
diff --git a/compiler-rt/lib/CMakeLists.txt b/compiler-rt/lib/CMakeLists.txt
index 1437e37..c1c6880 100644
--- a/compiler-rt/lib/CMakeLists.txt
+++ b/compiler-rt/lib/CMakeLists.txt
@@ -66,10 +66,6 @@ if(COMPILER_RT_BUILD_MEMPROF AND COMPILER_RT_HAS_SANITIZER_COMMON)
   compiler_rt_build_runtime(memprof)
 endif()
 
-if(COMPILER_RT_BUILD_ORC)
-  compiler_rt_build_runtime(orc)
-endif()
-
 # It doesn't normally make sense to build runtimes when a sanitizer is enabled,
 # so we don't add_subdirectory the runtimes in that case. However, the opposite
 # is true for fuzzers that exercise parts of the runtime. So we add the fuzzer
diff --git a/compiler-rt/lib/orc/CMakeLists.txt b/compiler-rt/lib/orc/CMakeLists.txt
deleted file mode 100644
index 4007a46..0000000
--- a/compiler-rt/lib/orc/CMakeLists.txt
+++ /dev/null
@@ -1,84 +0,0 @@
-# Build for all components of the ORC runtime support library.
-
-# ORC runtime library implementation files.
-set(ORC_SOURCES
-  placeholder.cpp
-  )
-
-# Implementation files for all ORC architectures.
-set(x86_64_SOURCES
-# x86-64 specific assembly files will go here.
-)
-
-set(ORC_IMPL_HEADERS
-# Implementation headers will go here.
-)
-
-# Create list of all source files for
-# consumption by tests.
-set(ORC_ALL_SOURCE_FILES
-  ${ORC_SOURCES}
-  ${x86_64_SOURCES}
-  ${ORC_IMPL_HEADERS}
-  )
-
-list(REMOVE_DUPLICATES ORC_ALL_SOURCE_FILES)
-
-# Now put it all together...
-include_directories(..)
-include_directories(../../include)
-
-set(ORC_CFLAGS ${COMPILER_RT_COMMON_CFLAGS})
-
-# Allow the ORC runtime to reference LLVM headers.
-foreach (DIR ${LLVM_INCLUDE_DIR} ${LLVM_MAIN_INCLUDE_DIR})
-  list(APPEND ORC_CFLAGS -I${DIR})
-endforeach()
-
-add_compiler_rt_component(orc)
-
-# ORC uses C++ standard library headers.
-if (TARGET cxx-headers OR HAVE_LIBCXX)
-  set(ORC_DEPS cxx-headers)
-endif()
-
-if (APPLE)
-  add_compiler_rt_object_libraries(RTOrc
-    OS ${ORC_SUPPORTED_OS}
-    ARCHS ${ORC_SUPPORTED_ARCH}
-    SOURCES ${ORC_SOURCES} ${x86_64_SOURCES}
-    ADDITIONAL_HEADERS ${ORC_IMPL_HEADERS}
-    CFLAGS ${ORC_CFLAGS}
-    DEPS ${ORC_DEPS})
-
-  # We only support running on osx for now.
-  add_compiler_rt_runtime(clang_rt.orc
-    STATIC
-    OS ${ORC_SUPPORTED_OS}
-    ARCHS ${ORC_SUPPORTED_ARCH}
-    OBJECT_LIBS RTOrc
-    CFLAGS ${ORC_CFLAGS}
-    LINK_FLAGS ${SANITIZER_COMMON_LINK_FLAGS} ${WEAK_SYMBOL_LINK_FLAGS}
-    LINK_LIBS ${ORC_LINK_LIBS}
-    PARENT_TARGET orc)
-else() # not Apple
-  foreach(arch ${ORC_SUPPORTED_ARCH})
-    if(NOT CAN_TARGET_${arch})
-      continue()
-    endif()
-    add_compiler_rt_object_libraries(RTOrc
-      ARCHS ${arch}
-      SOURCES ${ORC_SOURCES} ${${arch}_SOURCES}
-      ADDITIONAL_HEADERS ${ORC_IMPL_HEADERS}
-      CFLAGS $ORC_CFLAGS}
-      DEPS ${ORC_DEPS})
-
-    # Common ORC archive for instrumented binaries.
-    add_compiler_rt_runtime(clang_rt.orc
-     STATIC
-     ARCHS ${arch}
-     CFLAGS ${ORC_CFLAGS}
-     OBJECT_LIBS ${ORC_COMMON_RUNTIME_OBJECT_LIBS} RTOrc
-     PARENT_TARGET orc)
-  endforeach()
-endif() # not Apple
diff --git a/compiler-rt/lib/orc/placeholder.cpp b/compiler-rt/lib/orc/placeholder.cpp
deleted file mode 100644
index c832f60..0000000
--- a/compiler-rt/lib/orc/placeholder.cpp
+++ /dev/null
@@ -1 +0,0 @@
-void placeholder(void) {}
diff --git a/compiler-rt/test/CMakeLists.txt b/compiler-rt/test/CMakeLists.txt
index 1020cc7f..1d123ed 100644
--- a/compiler-rt/test/CMakeLists.txt
+++ b/compiler-rt/test/CMakeLists.txt
@@ -78,9 +78,6 @@ if(COMPILER_RT_CAN_EXECUTE_TESTS)
   if(COMPILER_RT_BUILD_XRAY)
     compiler_rt_test_runtime(xray)
   endif()
-  if(COMPILER_RT_BUILD_ORC)
-    compiler_rt_Test_runtime(orc)
-  endif()
   if(COMPILER_RT_BUILD_CRT AND COMPILER_RT_HAS_CRT)
     add_subdirectory(crt)
   endif()
diff --git a/compiler-rt/test/orc/CMakeLists.txt b/compiler-rt/test/orc/CMakeLists.txt
deleted file mode 100644
index 0ae5a70..0000000
--- a/compiler-rt/test/orc/CMakeLists.txt
+++ /dev/null
@@ -1,26 +0,0 @@
-set(ORC_LIT_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR})
-set(ORC_LIT_BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR})
-
-set(ORC_TESTSUITES)
-set(ORC_TEST_DEPS ${SANITIZER_COMMON_LIT_TEST_DEPS} clang llvm-jitlink)
-
-set(ORC_TEST_ARCH ${ORC_SUPPORTED_ARCH})
-if (COMPILER_RT_BUILD_ORC AND COMPILER_RT_HAS_ORC)
-  foreach(arch ${ORC_TEST_ARCH})
-    set(ORC_TEST_TARGET_ARCH ${arch})
-    string(TOLOWER "-${arch}-${OS_NAME}" ORC_TEST_CONFIG_SUFFIX)
-    get_test_cc_for_arch(${arch} ORC_TEST_TARGET_CC ORC_TEST_TARGET_CFLAGS)
-    string(TOUPPER ${arch} ARCH_UPPER_CASE)
-    set(CONFIG_NAME ${ARCH_UPPER_CASE}${OS_NAME}Config)
-
-    configure_lit_site_cfg(
-      ${CMAKE_CURRENT_SOURCE_DIR}/lit.site.cfg.py.in
-      ${CMAKE_CURRENT_BINARY_DIR}/${CONFIG_NAME}/lit.site.cfg.py)
-    list(APPEND ORC_TESTSUITES ${CMAKE_CURRENT_BINARY_DIR}/${CONFIG_NAME})
-  endforeach()
-endif()
-
-add_lit_testsuite(check-orc "Running the ORC runtime tests"
-  ${ORC_TESTSUITES}
-  DEPENDS ${ORC_TEST_DEPS})
-set_target_properties(check-orc PROPERTIES FOLDER "Compiler-RT Misc")
diff --git a/compiler-rt/test/orc/TestCases/Darwin/lit.local.cfg.py b/compiler-rt/test/orc/TestCases/Darwin/lit.local.cfg.py
deleted file mode 100644
index ffa8fd8..0000000
--- a/compiler-rt/test/orc/TestCases/Darwin/lit.local.cfg.py
+++ /dev/null
@@ -1,2 +0,0 @@
-if config.root.host_os != 'Darwin':
-  config.unsupported = True
diff --git a/compiler-rt/test/orc/TestCases/Darwin/x86-64/lit.local.cfg.py b/compiler-rt/test/orc/TestCases/Darwin/x86-64/lit.local.cfg.py
deleted file mode 100644
index 1b14fb6..0000000
--- a/compiler-rt/test/orc/TestCases/Darwin/x86-64/lit.local.cfg.py
+++ /dev/null
@@ -1,2 +0,0 @@
-if config.root.host_arch != 'x86_64':
-  config.unsupported = True
diff --git a/compiler-rt/test/orc/TestCases/Darwin/x86-64/placeholder_test.S b/compiler-rt/test/orc/TestCases/Darwin/x86-64/placeholder_test.S
deleted file mode 100644
index a794e10..0000000
--- a/compiler-rt/test/orc/TestCases/Darwin/x86-64/placeholder_test.S
+++ /dev/null
@@ -1,13 +0,0 @@
-// RUN: %clang -c -o %t %s
-// RUN: %llvm_jitlink %t
-
-	.section	__TEXT,__text,regular,pure_instructions
-	.build_version macos, 11, 0	sdk_version 11, 3
-
-	.globl	_main
-	.p2align	4, 0x90
-_main:
-	xorl	%eax, %eax
-	retq
-
-.subsections_via_symbols
diff --git a/compiler-rt/test/orc/lit.cfg.py b/compiler-rt/test/orc/lit.cfg.py
deleted file mode 100644
index 4e39523..0000000
--- a/compiler-rt/test/orc/lit.cfg.py
+++ /dev/null
@@ -1,33 +0,0 @@
-# -*- Python -*-
-
-import os
-
-# Setup config name.
-config.name = 'ORC' + config.name_suffix
-
-# Setup source root.
-config.test_source_root = os.path.dirname(__file__)
-
-def build_invocation(compile_flags):
-  return ' ' + ' '.join([config.clang] + compile_flags) + ' '
-
-# Assume that llvm-jitlink is in the config.llvm_tools_dir.
-llvm_jitlink = os.path.join(config.llvm_tools_dir, 'llvm-jitlink')
-
-config.substitutions.append(
-    ('%clang ', build_invocation([config.target_cflags])))
-config.substitutions.append(
-    ('%clangxx ',
-     build_invocation(config.cxx_mode_flags + [config.target_cflags])))
-config.substitutions.append(
-    ('%llvm_jitlink', llvm_jitlink))
-config.substitutions.append(
-    ('%orc_rt',
-        ('-L%s -lclang_rt.orc%s')
-        % (config.compiler_rt_libdir, config.target_suffix)))
-
-# Default test suffixes.
-config.suffixes = ['.c', '.cpp', '.S']
-
-if config.host_os not in ['Darwin']:
-  config.unsupported = True
diff --git a/compiler-rt/test/orc/lit.site.cfg.py.in b/compiler-rt/test/orc/lit.site.cfg.py.in
deleted file mode 100644
index d5bb51c..0000000
--- a/compiler-rt/test/orc/lit.site.cfg.py.in
+++ /dev/null
@@ -1,14 +0,0 @@
-@LIT_SITE_CFG_IN_HEADER@
-
-# Tool-specific config options.
-config.name_suffix = "@ORC_TEST_CONFIG_SUFFIX@"
-config.orc_lit_source_dir = "@ORC_LIT_SOURCE_DIR@"
-config.target_cflags = "@ORC_TEST_TARGET_CFLAGS@"
-config.target_arch = "@ORC_TEST_TARGET_ARCH@"
-config.built_with_llvm = ("@COMPILER_RT_STANDALONE_BUILD@" != "TRUE")
-
-# Load common config for all compiler-rt lit tests
-lit_config.load_config(config, "@COMPILER_RT_BINARY_DIR@/test/lit.common.configured")
-
-# Load tool-specific config that would do the real work.
-lit_config.load_config(config, "@CMAKE_CURRENT_SOURCE_DIR@/lit.cfg.py")
-- 
2.7.4