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Replace TargetInstrInfo::isInvariantLoad and its target-specific

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implementations with a new MachineInstr::isInvariantLoad, which uses
MachineMemOperands and is target-independent. This brings MachineLICM
and other functionality to targets which previously lacked an
isInvariantLoad implementation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83475 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman
2009-10-07 17:38:06 +00:00
parent 2dbc4c84f6
commit e33f44cfc5
12 changed files with 56 additions and 107 deletions
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lib/CodeGen/ScheduleDAGInstrs.cpp
+1 -1
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@@ -375,7 +375,7 @@ void ScheduleDAGInstrs::BuildSchedGraph() {
// Treat all other stores conservatively.
goto new_chain;
} else if (TID.mayLoad()) {
if (TII->isInvariantLoad(MI)) {
if (MI->isInvariantLoad()) {
// Invariant load, no chain dependencies needed!
} else if (const Value *V = getUnderlyingObjectForInstr(MI)) {
// A load from a specific PseudoSourceValue. Add precise dependencies.