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Diffstat (limited to 'include/llvm/CodeGen/MachineBasicBlock.h')
-rw-r--r--include/llvm/CodeGen/MachineBasicBlock.h36
1 files changed, 25 insertions, 11 deletions
diff --git a/include/llvm/CodeGen/MachineBasicBlock.h b/include/llvm/CodeGen/MachineBasicBlock.h
index 333d0a78618c..ccdde78a0b22 100644
--- a/include/llvm/CodeGen/MachineBasicBlock.h
+++ b/include/llvm/CodeGen/MachineBasicBlock.h
@@ -103,9 +103,9 @@ private:
using LiveInVector = std::vector<RegisterMaskPair>;
LiveInVector LiveIns;
- /// Alignment of the basic block. Zero if the basic block does not need to be
- /// aligned. The alignment is specified as log2(bytes).
- unsigned Alignment = 0;
+ /// Alignment of the basic block. One if the basic block does not need to be
+ /// aligned.
+ Align Alignment;
/// Indicate that this basic block is entered via an exception handler.
bool IsEHPad = false;
@@ -312,7 +312,7 @@ public:
/// Adds the specified register as a live in. Note that it is an error to add
/// the same register to the same set more than once unless the intention is
/// to call sortUniqueLiveIns after all registers are added.
- void addLiveIn(MCPhysReg PhysReg,
+ void addLiveIn(MCRegister PhysReg,
LaneBitmask LaneMask = LaneBitmask::getAll()) {
LiveIns.push_back(RegisterMaskPair(PhysReg, LaneMask));
}
@@ -331,7 +331,7 @@ public:
/// Add PhysReg as live in to this block, and ensure that there is a copy of
/// PhysReg to a virtual register of class RC. Return the virtual register
/// that is a copy of the live in PhysReg.
- unsigned addLiveIn(MCPhysReg PhysReg, const TargetRegisterClass *RC);
+ unsigned addLiveIn(MCRegister PhysReg, const TargetRegisterClass *RC);
/// Remove the specified register from the live in set.
void removeLiveIn(MCPhysReg Reg,
@@ -372,13 +372,11 @@ public:
/// \see getBeginClobberMask()
const uint32_t *getEndClobberMask(const TargetRegisterInfo *TRI) const;
- /// Return alignment of the basic block. The alignment is specified as
- /// log2(bytes).
- unsigned getAlignment() const { return Alignment; }
+ /// Return alignment of the basic block.
+ Align getAlignment() const { return Alignment; }
- /// Set alignment of the basic block. The alignment is specified as
- /// log2(bytes).
- void setAlignment(unsigned Align) { Alignment = Align; }
+ /// Set alignment of the basic block.
+ void setAlignment(Align A) { Alignment = A; }
/// Returns true if the block is a landing pad. That is this basic block is
/// entered via an exception handler.
@@ -636,6 +634,18 @@ public:
return Insts.insertAfter(I.getInstrIterator(), MI);
}
+ /// If I is bundled then insert MI into the instruction list after the end of
+ /// the bundle, otherwise insert MI immediately after I.
+ instr_iterator insertAfterBundle(instr_iterator I, MachineInstr *MI) {
+ assert((I == instr_end() || I->getParent() == this) &&
+ "iterator points outside of basic block");
+ assert(!MI->isBundledWithPred() && !MI->isBundledWithSucc() &&
+ "Cannot insert instruction with bundle flags");
+ while (I->isBundledWithSucc())
+ ++I;
+ return Insts.insertAfter(I, MI);
+ }
+
/// Remove an instruction from the instruction list and delete it.
///
/// If the instruction is part of a bundle, the other instructions in the
@@ -723,6 +733,10 @@ public:
/// CFG so that it branches to 'New' instead.
void ReplaceUsesOfBlockWith(MachineBasicBlock *Old, MachineBasicBlock *New);
+ /// Update all phi nodes in this basic block to refer to basic block \p New
+ /// instead of basic block \p Old.
+ void replacePhiUsesWith(MachineBasicBlock *Old, MachineBasicBlock *New);
+
/// Various pieces of code can cause excess edges in the CFG to be inserted.
/// If we have proven that MBB can only branch to DestA and DestB, remove any
/// other MBB successors from the CFG. DestA and DestB can be null. Besides