[X86] Don't use the MSVC stack protector names on mingw

Mingw uses the same stack protector functions as GCC provides
on other platforms as well.

Patch by Valentin Churavy!

Differential Revision: https://reviews.llvm.org/D27296

llvm-svn: 328039

1 files changed, 8 insertions, 3 deletions

diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp
index a445bc8d6bc..69ca1b8bca5 100644
--- a/llvm/lib/Target/X86/X86ISelLowering.cpp
+++ b/llvm/lib/Target/X86/X86ISelLowering.cpp
@@ -2098,7 +2098,8 @@ Value *X86TargetLowering::getIRStackGuard(IRBuilder<> &IRB) const {
 
 void X86TargetLowering::insertSSPDeclarations(Module &M) const {
   // MSVC CRT provides functionalities for stack protection.
-  if (Subtarget.getTargetTriple().isOSMSVCRT()) {
+  if (Subtarget.getTargetTriple().isWindowsMSVCEnvironment() ||
+      Subtarget.getTargetTriple().isWindowsItaniumEnvironment()) {
     // MSVC CRT has a global variable holding security cookie.
     M.getOrInsertGlobal("__security_cookie",
                         Type::getInt8PtrTy(M.getContext()));
@@ -2120,15 +2121,19 @@ void X86TargetLowering::insertSSPDeclarations(Module &M) const {
 
 Value *X86TargetLowering::getSDagStackGuard(const Module &M) const {
   // MSVC CRT has a global variable holding security cookie.
-  if (Subtarget.getTargetTriple().isOSMSVCRT())
+  if (Subtarget.getTargetTriple().isWindowsMSVCEnvironment() ||
+      Subtarget.getTargetTriple().isWindowsItaniumEnvironment()) {
     return M.getGlobalVariable("__security_cookie");
+  }
   return TargetLowering::getSDagStackGuard(M);
 }
 
 Value *X86TargetLowering::getSSPStackGuardCheck(const Module &M) const {
   // MSVC CRT has a function to validate security cookie.
-  if (Subtarget.getTargetTriple().isOSMSVCRT())
+  if (Subtarget.getTargetTriple().isWindowsMSVCEnvironment() ||
+      Subtarget.getTargetTriple().isWindowsItaniumEnvironment()) {
     return M.getFunction("__security_check_cookie");
+  }
   return TargetLowering::getSSPStackGuardCheck(M);
 }