Revert "[Fuchsia] Support PGO" (#126293)

Reverts #120323

This breaks some internal Fuchsia builders. We can reland again later,
once that is addresed.

Author: ilovepi

clang/cmake/caches/Fuchsia-stage2-instrumented.cmake

@@ -126,16 +126,6 @@ else()
   set(LIBCXX_ENABLE_STATIC_ABI_LIBRARY ON CACHE BOOL "")
   set(LIBCXX_HARDENING_MODE "none" CACHE STRING "")
   set(LIBCXX_USE_COMPILER_RT ON CACHE BOOL "")
-  set(COMPILER_RT_BUILD_LIBFUZZER OFF CACHE BOOL "")
-  set(COMPILER_RT_BUILD_PROFILE ON CACHE BOOL "")
-  set(COMPILER_RT_BUILD_SANITIZERS OFF CACHE BOOL "")
-  set(COMPILER_RT_BUILD_XRAY OFF CACHE BOOL "")
-  set(COMPILER_RT_USE_BUILTINS_LIBRARY ON CACHE BOOL "")
-  set(COMPILER_RT_DEFAULT_TARGET_ONLY ON CACHE BOOL "")
-  set(SANITIZER_CXX_ABI "libc++" CACHE STRING "")
-  set(SANITIZER_CXX_ABI_INTREE ON CACHE BOOL "")
-  set(SANITIZER_TEST_CXX "libc++" CACHE STRING "")
-  set(SANITIZER_TEST_CXX_INTREE ON CACHE BOOL "")
   set(LLVM_ENABLE_RUNTIMES "compiler-rt;libcxx;libcxxabi;libunwind" CACHE STRING "")
   set(RUNTIMES_CMAKE_ARGS "-DCMAKE_OSX_DEPLOYMENT_TARGET=10.13;-DCMAKE_OSX_ARCHITECTURES=arm64|x86_64" CACHE STRING "")
 endif()
@@ -174,29 +164,34 @@ endif()
 
 set(BOOTSTRAP_LLVM_ENABLE_LLD ON CACHE BOOL "")
 set(BOOTSTRAP_LLVM_ENABLE_LTO ON CACHE BOOL "")
-set(BOOTSTRAP_LLVM_BUILD_INSTRUMENTED ON CACHE BOOL "")
 
 set(_FUCHSIA_BOOTSTRAP_TARGETS
-  generate-profdata
-  stage2
-  stage2-toolchain-distribution
-  stage2-install-toolchain-distribution
-  stage2-install-toolchain-distribution-stripped
-  stage2-install-toolchain-distribution-toolchain
-  stage2-check-all
-  stage2-check-lld
-  stage2-check-llvm
-  stage2-check-clang
-  stage2-test-suite)
+  check-all
+  check-clang
+  check-lld
+  check-llvm
+  check-polly
+  llvm-config
+  clang-test-depends
+  lld-test-depends
+  llvm-test-depends
+  test-suite
+  test-depends
+  toolchain-distribution
+  install-toolchain-distribution
+  install-toolchain-distribution-stripped
+  install-toolchain-distribution-toolchain
+  clang)
 
 if(FUCHSIA_ENABLE_LLDB)
   list(APPEND _FUCHSIA_ENABLE_PROJECTS lldb)
   list(APPEND _FUCHSIA_BOOTSTRAP_TARGETS
-    stage2-check-lldb
-    stage2-debugger-distribution
-    stage2-install-debugger-distribution
-    stage2-install-debugger-distribution-stripped
-    stage2-install-debugger-distribution-toolchain)
+    check-lldb
+    lldb-test-depends
+    debugger-distribution
+    install-debugger-distribution
+    install-debugger-distribution-stripped
+    install-debugger-distribution-toolchain)
 endif()
 
 set(LLVM_ENABLE_PROJECTS ${_FUCHSIA_ENABLE_PROJECTS} CACHE STRING "")
@@ -205,7 +200,6 @@ set(CLANG_BOOTSTRAP_TARGETS ${_FUCHSIA_BOOTSTRAP_TARGETS} CACHE STRING "")
 get_cmake_property(variableNames VARIABLES)
 foreach(variableName ${variableNames})
   if(variableName MATCHES "^STAGE2_")
-    list(APPEND EXTRA_ARGS "-D${variableName}=${${variableName}}")
     string(REPLACE "STAGE2_" "" new_name ${variableName})
     string(REPLACE ";" "|" value "${${variableName}}")
     list(APPEND EXTRA_ARGS "-D${new_name}=${value}")
@@ -215,9 +209,6 @@ endforeach()
 # TODO: This is a temporary workaround until we figure out the right solution.
 set(BOOTSTRAP_LLVM_ENABLE_RUNTIMES "compiler-rt;libcxx;libcxxabi;libunwind" CACHE STRING "")
 
-set(LLVM_BUILTIN_TARGETS "default" CACHE STRING "")
-set(LLVM_RUNTIME_TARGETS "default" CACHE STRING "")
-
 # Setup the bootstrap build.
 set(CLANG_ENABLE_BOOTSTRAP ON CACHE BOOL "")
 set(CLANG_BOOTSTRAP_EXTRA_DEPS
@@ -226,5 +217,5 @@ set(CLANG_BOOTSTRAP_EXTRA_DEPS
   CACHE STRING "")
 set(CLANG_BOOTSTRAP_CMAKE_ARGS
   ${EXTRA_ARGS}
-  -C ${CMAKE_CURRENT_LIST_DIR}/Fuchsia-stage2-instrumented.cmake
+  -C ${CMAKE_CURRENT_LIST_DIR}/Fuchsia-stage2.cmake
   CACHE STRING "")