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author | Bill Wendling <isanbard@gmail.com> | 2008-03-03 22:19:16 +0000 |
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committer | Bill Wendling <isanbard@gmail.com> | 2008-03-03 22:19:16 +0000 |
commit | 7194aaf738a1b89441635340403f1c5b06ae18ef (patch) | |
tree | 3e494b97a01adb719cb3d43e00444c4adf625a69 /lib/Target/PowerPC/PPCRegisterInfo.h | |
parent | 4a23d72ec21d1bdfda69fd16c9fc10cec39f1fed (diff) | |
download | external_llvm-7194aaf738a1b89441635340403f1c5b06ae18ef.zip external_llvm-7194aaf738a1b89441635340403f1c5b06ae18ef.tar.gz external_llvm-7194aaf738a1b89441635340403f1c5b06ae18ef.tar.bz2 |
This is the initial check-in for adding register scavenging to PPC. (Currently,
PPC-64 doesn't work.) This also lowers the spilling of the CR registers so that
it uses a register other than the default R0 register (the scavenger scrounges
for one). A significant part of this patch fixes how kill information is
handled.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47863 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/PowerPC/PPCRegisterInfo.h')
-rw-r--r-- | lib/Target/PowerPC/PPCRegisterInfo.h | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/lib/Target/PowerPC/PPCRegisterInfo.h b/lib/Target/PowerPC/PPCRegisterInfo.h index fc17b02..7da354a 100644 --- a/lib/Target/PowerPC/PPCRegisterInfo.h +++ b/lib/Target/PowerPC/PPCRegisterInfo.h @@ -51,13 +51,20 @@ public: /// time). bool targetHandlesStackFrameRounding() const { return true; } + /// requiresRegisterScavenging - We require a register scavenger. + /// FIXME (64-bit): Should be inlined. + bool requiresRegisterScavenging(const MachineFunction &MF) const; + bool hasFP(const MachineFunction &MF) const; void eliminateCallFramePseudoInstr(MachineFunction &MF, MachineBasicBlock &MBB, MachineBasicBlock::iterator I) const; - void lowerDynamicAlloc(MachineBasicBlock::iterator II) const; + void lowerDynamicAlloc(MachineBasicBlock::iterator II, + int SPAdj, RegScavenger *RS) const; + void lowerCRSpilling(MachineBasicBlock::iterator II, unsigned FrameIndex, + int SPAdj, RegScavenger *RS) const; void eliminateFrameIndex(MachineBasicBlock::iterator II, int SPAdj, RegScavenger *RS = NULL) const; |