Provide ABI-correct stack alignment

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@50154 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/X86/X86Subtarget.cpp b/lib/Target/X86/X86Subtarget.cpp
index 610bf1da432b2b16053368326fad2141b6783ba1..71b5cb31f575dd584c83f6bde285b1b0699efe09 100644 (file)
--- a/lib/Target/X86/X86Subtarget.cpp
+++ b/lib/Target/X86/X86Subtarget.cpp
@@ -315,11 +315,9 @@ X86Subtarget::X86Subtarget(const Module &M, const std::string &FS, bool is64Bit)
       ? X86Subtarget::Intel : X86Subtarget::ATT;
   }
 
-  if (TargetType == isDarwin ||
-      TargetType == isCygwin ||
-      TargetType == isMingw  ||
-      TargetType == isWindows ||
-      (TargetType == isELF && Is64Bit))
+  // Stack alignment is 16 bytes on Darwin (both 32 and 64 bit) and for all 64
+  // bit targets.
+  if (TargetType == isDarwin || Is64Bit)
     stackAlignment = 16;
 
   if (StackAlignment)