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| author | Akira Hatanaka <ahatanaka@mips.com> | 2012-07-31 23:52:55 +0000 |
|---|---|---|
| committer | Akira Hatanaka <ahatanaka@mips.com> | 2012-07-31 23:52:55 +0000 |
| commit | 71746220d3d1c3e8efba35038ac2ff14b4a4d3ae (patch) | |
| tree | 81731141188a20b620b74a7e1fb6dc16c86f0859 /lib/Target/Mips/Mips16RegisterInfo.cpp | |
| parent | 8589010e3d1d5a902992a5039cffa9d4116982c5 (diff) | |
| download | llvm-71746220d3d1c3e8efba35038ac2ff14b4a4d3ae.tar.gz llvm-71746220d3d1c3e8efba35038ac2ff14b4a4d3ae.tar.bz2 llvm-71746220d3d1c3e8efba35038ac2ff14b4a4d3ae.tar.xz | |
Implement MipsSERegisterInfo::eliminateCallFramePseudoInstr. The function emits
instructions that decrement and increment the stack pointer before and after a
call when the function does not have a reserved call frame.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161093 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/Mips/Mips16RegisterInfo.cpp')
| -rw-r--r-- | lib/Target/Mips/Mips16RegisterInfo.cpp | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/lib/Target/Mips/Mips16RegisterInfo.cpp b/lib/Target/Mips/Mips16RegisterInfo.cpp index a333d79ed9..e0c4971f9d 100644 --- a/lib/Target/Mips/Mips16RegisterInfo.cpp +++ b/lib/Target/Mips/Mips16RegisterInfo.cpp @@ -42,6 +42,15 @@ Mips16RegisterInfo::Mips16RegisterInfo(const MipsSubtarget &ST, const TargetInstrInfo &TII) : MipsRegisterInfo(ST, TII) {} +// This function eliminate ADJCALLSTACKDOWN, +// ADJCALLSTACKUP pseudo instructions +void Mips16RegisterInfo:: +eliminateCallFramePseudoInstr(MachineFunction &MF, MachineBasicBlock &MBB, + MachineBasicBlock::iterator I) const { + // Simply discard ADJCALLSTACKDOWN, ADJCALLSTACKUP instructions. + MBB.erase(I); +} + void Mips16RegisterInfo::eliminateFI(MachineBasicBlock::iterator II, unsigned OpNo, int FrameIndex, uint64_t StackSize, |