diff options
Diffstat (limited to 'include/llvm/CodeGen/MachineInstrBundle.h')
-rw-r--r-- | include/llvm/CodeGen/MachineInstrBundle.h | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/include/llvm/CodeGen/MachineInstrBundle.h b/include/llvm/CodeGen/MachineInstrBundle.h index 9552e21fca..0fb4969822 100644 --- a/include/llvm/CodeGen/MachineInstrBundle.h +++ b/include/llvm/CodeGen/MachineInstrBundle.h @@ -41,6 +41,22 @@ MachineBasicBlock::instr_iterator finalizeBundle(MachineBasicBlock &MBB, /// MachineFunction. Return true if any bundles are finalized. bool finalizeBundles(MachineFunction &MF); +/// getBundleStart - Returns the first instruction in the bundle containing MI. +/// +static inline MachineInstr *getBundleStart(MachineInstr *MI) { + MachineBasicBlock::instr_iterator I = MI; + while (I->isInsideBundle()) + --I; + return I; +} + +static inline const MachineInstr *getBundleStart(const MachineInstr *MI) { + MachineBasicBlock::const_instr_iterator I = MI; + while (I->isInsideBundle()) + --I; + return I; +} + //===----------------------------------------------------------------------===// // MachineOperand iterator // @@ -82,7 +98,7 @@ protected: /// explicit MachineOperandIteratorBase(MachineInstr *MI, bool WholeBundle) { if (WholeBundle) { - InstrI = MI->getBundleStart(); + InstrI = getBundleStart(MI); InstrE = MI->getParent()->instr_end(); } else { InstrI = InstrE = MI; |