From 1f2415efc3e9f0eb9d50367979d9c8dd6d784658 Mon Sep 17 00:00:00 2001 From: Jakob Stoklund Olesen Date: Fri, 5 Jul 2013 23:04:55 +0000 Subject: [PATCH] Remove dead function. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185731 91177308-0d34-0410-b5e6-96231b3b80d8 --- include/llvm/CodeGen/MachineInstr.h | 5 ----- lib/CodeGen/MachineInstr.cpp | 26 -------------------------- 2 files changed, 31 deletions(-) diff --git a/include/llvm/CodeGen/MachineInstr.h b/include/llvm/CodeGen/MachineInstr.h index 195cce7a64d..cf5e7e25fc9 100644 --- a/include/llvm/CodeGen/MachineInstr.h +++ b/include/llvm/CodeGen/MachineInstr.h @@ -908,11 +908,6 @@ public: bool isSafeToMove(const TargetInstrInfo *TII, AliasAnalysis *AA, bool &SawStore) const; - /// isSafeToReMat - Return true if it's safe to rematerialize the specified - /// instruction which defined the specified register instead of copying it. - bool isSafeToReMat(const TargetInstrInfo *TII, AliasAnalysis *AA, - unsigned DstReg) const; - /// hasOrderedMemoryRef - Return true if this instruction may have an ordered /// or volatile memory reference, or if the information describing the memory /// reference is not available. Return false if it is known to have no diff --git a/lib/CodeGen/MachineInstr.cpp b/lib/CodeGen/MachineInstr.cpp index 368c7ea0790..06bb80a00f6 100644 --- a/lib/CodeGen/MachineInstr.cpp +++ b/lib/CodeGen/MachineInstr.cpp @@ -1253,32 +1253,6 @@ bool MachineInstr::isSafeToMove(const TargetInstrInfo *TII, return true; } -/// isSafeToReMat - Return true if it's safe to rematerialize the specified -/// instruction which defined the specified register instead of copying it. -bool MachineInstr::isSafeToReMat(const TargetInstrInfo *TII, - AliasAnalysis *AA, - unsigned DstReg) const { - bool SawStore = false; - if (!TII->isTriviallyReMaterializable(this, AA) || - !isSafeToMove(TII, AA, SawStore)) - return false; - for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { - const MachineOperand &MO = getOperand(i); - if (!MO.isReg()) - continue; - // FIXME: For now, do not remat any instruction with register operands. - // Later on, we can loosen the restriction is the register operands have - // not been modified between the def and use. Note, this is different from - // MachineSink because the code is no longer in two-address form (at least - // partially). - if (MO.isUse()) - return false; - else if (!MO.isDead() && MO.getReg() != DstReg) - return false; - } - return true; -} - /// hasOrderedMemoryRef - Return true if this instruction may have an ordered /// or volatile memory reference, or if the information describing the memory /// reference is not available. Return false if it is known to have no ordered -- 2.34.1