diff options
| author | Reed Kotler <rkotler@mips.com> | 2012-12-20 04:44:58 +0000 |
|---|---|---|
| committer | Reed Kotler <rkotler@mips.com> | 2012-12-20 04:44:58 +0000 |
| commit | 1f23239c5bdbeb45a612238acd48bb497b3cce15 (patch) | |
| tree | b81c55fbd2627a7973812e30e942fae90544b54f /lib/Target/Mips/Mips16RegisterInfo.h | |
| parent | 9bf571fe2c24305aee6a930ed3b2561f6d4ff237 (diff) | |
| download | llvm-1f23239c5bdbeb45a612238acd48bb497b3cce15.tar.gz llvm-1f23239c5bdbeb45a612238acd48bb497b3cce15.tar.bz2 llvm-1f23239c5bdbeb45a612238acd48bb497b3cce15.tar.xz | |
Turn on register scavenger for Mips 16
We use an unused Mips 32 register for the emergency slot
instead of using the stack.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170665 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/Mips/Mips16RegisterInfo.h')
| -rw-r--r-- | lib/Target/Mips/Mips16RegisterInfo.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/lib/Target/Mips/Mips16RegisterInfo.h b/lib/Target/Mips/Mips16RegisterInfo.h index 153def20d0..ba0d25d5b0 100644 --- a/lib/Target/Mips/Mips16RegisterInfo.h +++ b/lib/Target/Mips/Mips16RegisterInfo.h @@ -27,6 +27,19 @@ public: void eliminateCallFramePseudoInstr(MachineFunction &MF, MachineBasicBlock &MBB, MachineBasicBlock::iterator I) const; + + bool requiresRegisterScavenging(const MachineFunction &MF) const; + + bool requiresFrameIndexScavenging(const MachineFunction &MF) const; + + bool useFPForScavengingIndex(const MachineFunction &MF) const; + + bool saveScavengerRegister(MachineBasicBlock &MBB, + MachineBasicBlock::iterator I, + MachineBasicBlock::iterator &UseMI, + const TargetRegisterClass *RC, + unsigned Reg) const; + private: virtual void eliminateFI(MachineBasicBlock::iterator II, unsigned OpNo, int FrameIndex, uint64_t StackSize, |