Revert "[compiler-rt][builtins] Add compiler flags to catch potential errors"

This reverts commit 5f886adbfd.

It broke clang-hip-vega20.

https://lab.llvm.org/buildbot/#/builders/165/builds/23675

compiler-rt/cmake/Modules/CompilerRTCompile.cmake

@@ -24,26 +24,6 @@ function(translate_msvc_cflags out_flags msvc_flags)
   set(${out_flags} "${clang_flags}" PARENT_SCOPE)
 endfunction()
 
-# Add warnings to catch potential errors that can lead to security
-# vulnerabilities.
-function(add_security_warnings out_flags macosx_sdk_version)
-  set(flags "${${out_flags}}" -Werror=builtin-memcpy-chk-size -Werror=format-security
-      -Werror=array-bounds -Werror=uninitialized -Werror=array-bounds-pointer-arithmetic
-      -Werror=shadow -Werror=empty-body -Werror=sizeof-pointer-memaccess
-      -Werror=return-stack-address -Werror=sizeof-array-decay -Werror=sizeof-array-argument
-      -Werror=memset-transposed-args -Werror=format-insufficient-args)
-
-  # Add -Wformat-nonliteral only if we can avoid adding the defintion of
-  # eprintf. On Apple platforms, eprintf is needed only on macosx and only if
-  # its version is older than 10.7.
-  if ("${macosx_sdk_version}" VERSION_GREATER_EQUAL 10.7 OR
-      "${macosx_sdk_version}" EQUAL 0)
-    set(flags "${flags}" -Werror=format-nonliteral -DDONT_DEFINE_EPRINTF)
-  endif()
-
-  set(${out_flags} "${flags}" PARENT_SCOPE)
-endfunction()
-
 # Compile a sanitizer test with a freshly built clang
 # for a given architecture, adding the result to the object list.
 #  - obj_list: output list of objects, populated by path

compiler-rt/cmake/Modules/CompilerRTDarwinUtils.cmake

@@ -413,12 +413,6 @@ macro(darwin_add_builtin_libraries)
                       ../profile/InstrProfilingInternal.c
                       ../profile/InstrProfilingVersionVar.c)
   foreach (os ${ARGN})
-    set(macosx_sdk_version 0)
-    if ("${os}" STREQUAL "osx")
-      find_darwin_sdk_version(macosx_sdk_version "macosx")
-    endif()
-    add_security_warnings(CFLAGS ${macosx_sdk_version})
-
     list_intersect(DARWIN_BUILTIN_ARCHS DARWIN_${os}_BUILTIN_ARCHS BUILTIN_SUPPORTED_ARCH)
 
     if((arm64 IN_LIST DARWIN_BUILTIN_ARCHS OR arm64e IN_LIST DARWIN_BUILTIN_ARCHS) AND NOT TARGET lse_builtin_symlinks)

compiler-rt/include/profile/InstrProfData.inc

@@ -129,10 +129,10 @@ INSTR_PROF_RAW_HEADER(uint64_t, Magic, __llvm_profile_get_magic())
 INSTR_PROF_RAW_HEADER(uint64_t, Version, __llvm_profile_get_version())
 INSTR_PROF_RAW_HEADER(uint64_t, BinaryIdsSize, __llvm_write_binary_ids(NULL))
 /* FIXME: A more accurate name is NumData */
-INSTR_PROF_RAW_HEADER(uint64_t, DataSize, DataSizeInitVal)
+INSTR_PROF_RAW_HEADER(uint64_t, DataSize, DataSize)
 INSTR_PROF_RAW_HEADER(uint64_t, PaddingBytesBeforeCounters, PaddingBytesBeforeCounters)
 /* FIXME: A more accurate name is NumCounters */
-INSTR_PROF_RAW_HEADER(uint64_t, CountersSize, CountersSizeInitVal)
+INSTR_PROF_RAW_HEADER(uint64_t, CountersSize, CountersSize)
 INSTR_PROF_RAW_HEADER(uint64_t, PaddingBytesAfterCounters, PaddingBytesAfterCounters)
 INSTR_PROF_RAW_HEADER(uint64_t, NamesSize,  NamesSize)
 INSTR_PROF_RAW_HEADER(uint64_t, CountersDelta,

compiler-rt/lib/builtins/CMakeLists.txt

@@ -699,7 +699,6 @@ if (APPLE)
   darwin_add_builtin_libraries(${BUILTIN_SUPPORTED_OS})
 else ()
   set(BUILTIN_CFLAGS "")
-  add_security_warnings(BUILTIN_CFLAGS -1)
 
   if (COMPILER_RT_HAS_FCF_PROTECTION_FLAG)
     append_list_if(COMPILER_RT_ENABLE_CET -fcf-protection=full BUILTIN_CFLAGS)

compiler-rt/lib/builtins/eprintf.c

@@ -15,7 +15,6 @@
 //
 // It should never be exported from a dylib, so it is marked
 // visibility hidden.
-#ifndef DONT_DEFINE_EPRINTF
 #ifndef _WIN32
 __attribute__((visibility("hidden")))
 #endif
@@ -26,4 +25,3 @@ __eprintf(const char *format, const char *assertion_expression,
   fflush(stderr);
   compilerrt_abort();
 }
-#endif

compiler-rt/lib/profile/InstrProfiling.c

@@ -64,11 +64,11 @@ COMPILER_RT_VISIBILITY void __llvm_profile_reset_counters(void) {
       CurrentVSiteCount += DI->NumValueSites[VKI];
 
     for (i = 0; i < CurrentVSiteCount; ++i) {
-      ValueProfNode *CurrVNode = ValueCounters[i];
+      ValueProfNode *CurrentVNode = ValueCounters[i];
 
-      while (CurrVNode) {
-        CurrVNode->Count = 0;
-        CurrVNode = CurrVNode->Next;
+      while (CurrentVNode) {
+        CurrentVNode->Count = 0;
+        CurrentVNode = CurrentVNode->Next;
       }
     }
   }

compiler-rt/lib/profile/InstrProfilingWriter.c

@@ -291,8 +291,8 @@ lprofWriteDataImpl(ProfDataWriter *Writer, const __llvm_profile_data *DataBegin,
     // TODO: Unfortunately the header's fields are named DataSize and
     // CountersSize when they should be named NumData and NumCounters,
     // respectively.
-    const uint64_t CountersSizeInitVal = NumCounters;
-    const uint64_t DataSizeInitVal = NumData;
+    const uint64_t CountersSize = NumCounters;
+    const uint64_t DataSize = NumData;
 /* Initialize header structure.  */
 #define INSTR_PROF_RAW_HEADER(Type, Name, Init) Header.Name = Init;
 #include "profile/InstrProfData.inc"