Add bundle aware API for querying instruction properties and switch the code
generator to it. For non-bundle instructions, these behave exactly the same
as the MC layer API.
For properties like mayLoad / mayStore, look into the bundle and if any of the
bundled instructions has the property it would return true.
For properties like isPredicable, only return true if *all* of the bundled
instructions have the property.
For properties like canFoldAsLoad, isCompare, conservatively return false for
bundles.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146026 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/PeepholeOptimizer.cpp b/lib/CodeGen/PeepholeOptimizer.cpp
index bbc7ce2..2a5652a 100644
--- a/lib/CodeGen/PeepholeOptimizer.cpp
+++ b/lib/CodeGen/PeepholeOptimizer.cpp
@@ -292,7 +292,7 @@
assert(Def && Src && "Malformed bitcast instruction!");
MachineInstr *DefMI = MRI->getVRegDef(Src);
- if (!DefMI || !DefMI->getDesc().isBitcast())
+ if (!DefMI || !DefMI->isBitcast())
return false;
unsigned SrcSrc = 0;
@@ -353,7 +353,7 @@
SmallSet<unsigned, 4> &ImmDefRegs,
DenseMap<unsigned, MachineInstr*> &ImmDefMIs) {
const MCInstrDesc &MCID = MI->getDesc();
- if (!MCID.isMoveImmediate())
+ if (!MI->isMoveImmediate())
return false;
if (MCID.getNumDefs() != 1)
return false;
@@ -428,9 +428,7 @@
continue;
}
- const MCInstrDesc &MCID = MI->getDesc();
-
- if (MCID.isBitcast()) {
+ if (MI->isBitcast()) {
if (OptimizeBitcastInstr(MI, MBB)) {
// MI is deleted.
LocalMIs.erase(MI);
@@ -438,7 +436,7 @@
MII = First ? I->begin() : llvm::next(PMII);
continue;
}
- } else if (MCID.isCompare()) {
+ } else if (MI->isCompare()) {
if (OptimizeCmpInstr(MI, MBB)) {
// MI is deleted.
LocalMIs.erase(MI);