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| author | Chandler Carruth <chandlerc@gmail.com> | 2012-06-18 07:03:12 +0000 |
|---|---|---|
| committer | Chandler Carruth <chandlerc@gmail.com> | 2012-06-18 07:03:12 +0000 |
| commit | 43369249e7c2be91535e3ef900673e6116a953de (patch) | |
| tree | 9fd4932e9f1dd91e12b1f1f2ec4f1e8bc6458bcb /lib/Target/X86/X86RegisterInfo.h | |
| parent | 1b9d890455336e1bd2828c42bdc9e1f5347dad6f (diff) | |
| download | llvm-43369249e7c2be91535e3ef900673e6116a953de.tar.gz llvm-43369249e7c2be91535e3ef900673e6116a953de.tar.bz2 llvm-43369249e7c2be91535e3ef900673e6116a953de.tar.xz | |
Temporarily revert r158087.
This patch causes problems when both dynamic stack realignment and
dynamic allocas combine in the same function. With this patch, we no
longer build the epilog correctly, and silently restore registers from
the wrong position in the stack.
Thanks to Matt for tracking this down, and getting at least an initial
test case to Chad. I'm going to try to check a variation of that test
case in so we can easily track the fixes required.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158654 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/X86/X86RegisterInfo.h')
| -rw-r--r-- | lib/Target/X86/X86RegisterInfo.h | 8 |
1 files changed, 0 insertions, 8 deletions
diff --git a/lib/Target/X86/X86RegisterInfo.h b/lib/Target/X86/X86RegisterInfo.h index 1bc32cbb78..ee69842b10 100644 --- a/lib/Target/X86/X86RegisterInfo.h +++ b/lib/Target/X86/X86RegisterInfo.h @@ -50,11 +50,6 @@ private: /// unsigned FramePtr; - /// BasePtr - X86 physical register used as a base ptr in complex stack - /// frames. I.e., when we need a 3rd base, not just SP and FP, due to - /// variable size stack objects. - unsigned BasePtr; - public: X86RegisterInfo(X86TargetMachine &tm, const TargetInstrInfo &tii); @@ -111,8 +106,6 @@ public: /// register scavenger to determine what registers are free. BitVector getReservedRegs(const MachineFunction &MF) const; - bool hasBasePointer(const MachineFunction &MF) const; - bool canRealignStack(const MachineFunction &MF) const; bool needsStackRealignment(const MachineFunction &MF) const; @@ -130,7 +123,6 @@ public: // Debug information queries. unsigned getFrameRegister(const MachineFunction &MF) const; unsigned getStackRegister() const { return StackPtr; } - unsigned getBaseRegister() const { return BasePtr; } // FIXME: Move to FrameInfok unsigned getSlotSize() const { return SlotSize; } |