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[DO NOT MERGE] [EraVM] Enable predication of context instructions #716

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[DO NOT MERGE] [EraVM] Enable predication of context instructions #716

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80813e0
[EraVM] Enable predication of context instructions
vladimirradosavljevic Oct 16, 2024
e4a525b
[EraVM] Remove check for CTXGasLeft in EraVMInstrInfo::isPredicable
vladimirradosavljevic Oct 16, 2024
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18 changes: 14 additions & 4 deletions llvm/lib/Target/EraVM/EraVMInstrInfo.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -712,6 +712,20 @@ MachineInstr *EraVMInstrInfo::createPHISourceCopy(
bool EraVMInstrInfo::isPredicatedInstr(const MachineInstr &MI) const {
if (MI.isBranch())
return !MI.isUnconditionalBranch();
switch (MI.getOpcode()) {
default:
break;
case EraVM::CTXThis:
case EraVM::CTXCaller:
case EraVM::CTXCodeSource:
case EraVM::CTXGetU128:
case EraVM::CTXMeta:
case EraVM::CTXSetU128:
case EraVM::CTXGasLeft:
case EraVM::CTXGetSp:
case EraVM::CTXIncTx:
return true;
}
return isArithmetic(MI) || isBitwise(MI) || isShift(MI) || isRotate(MI) ||
isLoad(MI) || isFatLoad(MI) || isStore(MI) || isNOP(MI) || isSel(MI) ||
isPtr(MI);
Expand Down Expand Up @@ -1271,10 +1285,6 @@ bool EraVMInstrInfo::isPredicable(const MachineInstr &MI) const {
if (!isPredicatedInstr(MI))
return false;

// Do not predicate gas_left instruction
if (MI.getOpcode() == EraVM::CTXGasLeft)
return false;

// we cannot make a flag setting instruction predicated execute
if (EraVMInstrInfo::isFlagSettingInstruction(MI.getOpcode()))
return false;
Expand Down