3 files changed, 5 insertions, 4 deletions
diff --git a/lib/Target/ARM/ARMBaseRegisterInfo.cpp b/lib/Target/ARM/ARMBaseRegisterInfo.cpp
index 9274baf..58c06e3 100644
--- a/lib/Target/ARM/ARMBaseRegisterInfo.cpp
+++ b/lib/Target/ARM/ARMBaseRegisterInfo.cpp
@@ -323,7 +323,7 @@ bool ARMBaseRegisterInfo::canRealignStack(const MachineFunction &MF) const {
   // 1. Dynamic stack realignment is explicitly disabled,
   // 2. This is a Thumb1 function (it's not useful, so we don't bother), or
   // 3. There are VLAs in the function and the base pointer is disabled.
-  if (!MF.getTarget().Options.RealignStack)
+  if (MF.getFunction()->hasFnAttribute("no-realign-stack"))
     return false;
   if (AFI->isThumb1OnlyFunction())
     return false;
diff --git a/lib/Target/PowerPC/PPCRegisterInfo.cpp b/lib/Target/PowerPC/PPCRegisterInfo.cpp
index b762a57..adba613 100644
--- a/lib/Target/PowerPC/PPCRegisterInfo.cpp
+++ b/lib/Target/PowerPC/PPCRegisterInfo.cpp
@@ -717,7 +717,7 @@ bool PPCRegisterInfo::hasBasePointer(const MachineFunction &MF) const {
 }
 
 bool PPCRegisterInfo::canRealignStack(const MachineFunction &MF) const {
-  if (!MF.getTarget().Options.RealignStack)
+  if (MF.getFunction()->hasFnAttribute("no-realign-stack"))
     return false;
 
   return true;
diff --git a/lib/Target/X86/X86RegisterInfo.cpp b/lib/Target/X86/X86RegisterInfo.cpp
index c6655f7..0923310 100644
--- a/lib/Target/X86/X86RegisterInfo.cpp
+++ b/lib/Target/X86/X86RegisterInfo.cpp
@@ -411,10 +411,11 @@ bool X86RegisterInfo::hasBasePointer(const MachineFunction &MF) const {
 }
 
 bool X86RegisterInfo::canRealignStack(const MachineFunction &MF) const {
+  if (MF.getFunction()->hasFnAttribute("no-realign-stack"))
+    return false;
+
   const MachineFrameInfo *MFI = MF.getFrameInfo();
   const MachineRegisterInfo *MRI = &MF.getRegInfo();
-  if (!MF.getTarget().Options.RealignStack)
-    return false;
 
   // Stack realignment requires a frame pointer.  If we already started
   // register allocation with frame pointer elimination, it is too late now.