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author | Bill Wendling <isanbard@gmail.com> | 2013-08-01 21:42:05 +0000 |
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committer | Bill Wendling <isanbard@gmail.com> | 2013-08-01 21:42:05 +0000 |
commit | 61fc8d670f1e991804c2ab753e567981e60962cb (patch) | |
tree | 01bf0e1eba2709eb4608e1e00504425452f66a53 /lib/Target/X86/X86RegisterInfo.cpp | |
parent | 8cb1d81250ab0957f956146af7bfe62cdd0a9f3e (diff) | |
download | llvm-61fc8d670f1e991804c2ab753e567981e60962cb.tar.gz llvm-61fc8d670f1e991804c2ab753e567981e60962cb.tar.bz2 llvm-61fc8d670f1e991804c2ab753e567981e60962cb.tar.xz |
Use function attributes to indicate that we don't want to realign the stack.
Function attributes are the future! So just query whether we want to realign the
stack directly from the function instead of through a random target options
structure.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187618 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/X86/X86RegisterInfo.cpp')
-rw-r--r-- | lib/Target/X86/X86RegisterInfo.cpp | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/lib/Target/X86/X86RegisterInfo.cpp b/lib/Target/X86/X86RegisterInfo.cpp index c6655f7c44..0923310cf3 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. |