6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-08-14 15:28:20 +00:00
Code Issues Projects Releases Wiki Activity

isTriviallyReMaterializable checks the

Browse Source 
TargetInstrDesc::isRematerializable flag, so it isn't necessary to do
this check in its callers.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83671 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman
2009-10-09 21:02:10 +00:00
parent 11596ed43c
commit 599a87aca0
4 changed files with 4 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
lib/CodeGen/LiveIntervalAnalysis.cpp
View File

@@ -1423,8 +1423,7 @@ bool LiveIntervals::isReMaterializable(const LiveInterval &li,
// If the target-specific rules don't identify an instruction as // If the target-specific rules don't identify an instruction as
// being trivially rematerializable, use some target-independent // being trivially rematerializable, use some target-independent
// rules. // rules.
if (!MI->getDesc().isRematerializable() || if (!tii_->isTriviallyReMaterializable(MI)) {
!tii_->isTriviallyReMaterializable(MI)) {
if (!EnableAggressiveRemat) if (!EnableAggressiveRemat)
return false; return false;

3
lib/CodeGen/MachineInstr.cpp
View File

@@ -960,8 +960,7 @@ bool MachineInstr::isSafeToMove(const TargetInstrInfo *TII,
bool MachineInstr::isSafeToReMat(const TargetInstrInfo *TII, bool MachineInstr::isSafeToReMat(const TargetInstrInfo *TII,
unsigned DstReg) const { unsigned DstReg) const {
bool SawStore = false; bool SawStore = false;
if (!getDesc().isRematerializable() || if (!TII->isTriviallyReMaterializable(this) ||
!TII->isTriviallyReMaterializable(this) ||
!isSafeToMove(TII, SawStore)) !isSafeToMove(TII, SawStore))
return false; return false;
for (unsigned i = 0, e = getNumOperands(); i != e; ++i) { for (unsigned i = 0, e = getNumOperands(); i != e; ++i) {

2
lib/CodeGen/MachineLICM.cpp
View File

@@ -322,7 +322,7 @@ bool MachineLICM::IsProfitableToHoist(MachineInstr &MI) {
// FIXME: For now, only hoist re-materilizable instructions. LICM will // FIXME: For now, only hoist re-materilizable instructions. LICM will
// increase register pressure. We want to make sure it doesn't increase // increase register pressure. We want to make sure it doesn't increase
// spilling. // spilling.
if (!TID.isRematerializable() || !TII->isTriviallyReMaterializable(&MI)) if (!TII->isTriviallyReMaterializable(&MI))
return false; return false;
// If result(s) of this instruction is used by PHIs, then don't hoist it. // If result(s) of this instruction is used by PHIs, then don't hoist it.

3
lib/CodeGen/SimpleRegisterCoalescing.cpp
View File

@@ -646,8 +646,7 @@ bool SimpleRegisterCoalescing::ReMaterializeTrivialDef(LiveInterval &SrcInt,
const TargetInstrDesc &TID = DefMI->getDesc(); const TargetInstrDesc &TID = DefMI->getDesc();
if (!TID.isAsCheapAsAMove()) if (!TID.isAsCheapAsAMove())
return false; return false;
if (!DefMI->getDesc().isRematerializable() || if (!tii_->isTriviallyReMaterializable(DefMI))
!tii_->isTriviallyReMaterializable(DefMI))
return false; return false;
bool SawStore = false; bool SawStore = false;
if (!DefMI->isSafeToMove(tii_, SawStore)) if (!DefMI->isSafeToMove(tii_, SawStore))