LivePhysRegs: Rework constructor + documentation; NFC
- Take reference instead of pointer to a TRI that cannot be nullptr.
- Improve documentation comments.
llvm-svn: 304038
diff --git a/llvm/lib/Target/AArch64/AArch64FrameLowering.cpp b/llvm/lib/Target/AArch64/AArch64FrameLowering.cpp
index 1aec602..6810249 100644
--- a/llvm/lib/Target/AArch64/AArch64FrameLowering.cpp
+++ b/llvm/lib/Target/AArch64/AArch64FrameLowering.cpp
@@ -267,12 +267,12 @@
return AArch64::X9;
const AArch64Subtarget &Subtarget = MF->getSubtarget<AArch64Subtarget>();
- const AArch64RegisterInfo *TRI = Subtarget.getRegisterInfo();
+ const AArch64RegisterInfo &TRI = *Subtarget.getRegisterInfo();
LivePhysRegs LiveRegs(TRI);
LiveRegs.addLiveIns(*MBB);
// Mark callee saved registers as used so we will not choose them.
- const MCPhysReg *CSRegs = TRI->getCalleeSavedRegs(MF);
+ const MCPhysReg *CSRegs = TRI.getCalleeSavedRegs(MF);
for (unsigned i = 0; CSRegs[i]; ++i)
LiveRegs.addReg(CSRegs[i]);