Move LLVM_ENABLE_ABI_BREAKING_CHECKS variables to their own file

so that you don't have to link Error.o and all of its dependencies.

In more detail: global initializers in Error.o can't be elided with
-ffunction-sections/-gc-sections since they always need to be run
causing a fairly significant binary bloat if all you want is the
ABI breaking checks code.

Differential Revision: https://reviews.llvm.org/D67387

llvm-svn: 371561

1 files changed, 0 insertions, 15 deletions

diff --git a/llvm/lib/Support/Error.cpp b/llvm/lib/Support/Error.cpp
index ae0e4b0..9ea08c3 100644
--- a/llvm/lib/Support/Error.cpp
+++ b/llvm/lib/Support/Error.cpp
@@ -167,18 +167,3 @@ void LLVMDisposeErrorMessage(char *ErrMsg) { delete[] ErrMsg; }
 LLVMErrorTypeId LLVMGetStringErrorTypeId() {
   return reinterpret_cast<void *>(&StringError::ID);
 }
-
-#ifndef _MSC_VER
-namespace llvm {
-
-// One of these two variables will be referenced by a symbol defined in
-// llvm-config.h. We provide a link-time (or load time for DSO) failure when
-// there is a mismatch in the build configuration of the API client and LLVM.
-#if LLVM_ENABLE_ABI_BREAKING_CHECKS
-int EnableABIBreakingChecks;
-#else
-int DisableABIBreakingChecks;
-#endif
-
-} // end namespace llvm
-#endif