Detect attempt to use segmented stacks on non ELF systems and error
(not assert) early.
llvm-svn: 139233
diff --git a/llvm/lib/Target/X86/X86Subtarget.cpp b/llvm/lib/Target/X86/X86Subtarget.cpp
index 32493de..bb04f01 100644
--- a/llvm/lib/Target/X86/X86Subtarget.cpp
+++ b/llvm/lib/Target/X86/X86Subtarget.cpp
@@ -16,9 +16,11 @@
#include "X86InstrInfo.h"
#include "llvm/GlobalValue.h"
#include "llvm/Support/Debug.h"
+#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/Support/Host.h"
#include "llvm/Target/TargetMachine.h"
+#include "llvm/Target/TargetOptions.h"
#include "llvm/ADT/SmallVector.h"
#define GET_SUBTARGETINFO_TARGET_DESC
@@ -321,6 +323,9 @@
assert((!In64BitMode || HasX86_64) &&
"64-bit code requested on a subtarget that doesn't support it!");
+ if(EnableSegmentedStacks && !isTargetELF())
+ report_fatal_error("Segmented stacks are only implemented on ELF.");
+
// Stack alignment is 16 bytes on Darwin, FreeBSD, Linux and Solaris (both
// 32 and 64 bit) and for all 64-bit targets.
if (StackAlignOverride)