Skip to content

[AArch64] merge index address with large offset into base address #75343

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 3 commits into from
Dec 21, 2023
Merged

[AArch64] merge index address with large offset into base address #75343

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
3 commits
Select commit Hold shift + click to select a range
4bad0cb
[AArch64] Precommit tests for PR75343, NFC
vfdff Dec 21, 2023
32878c2
[AArch64] merge index address with large offset into base address
vfdff Nov 10, 2023
f568763
[AArch64] Fold more load.x into load.i with large offset
vfdff Dec 18, 2023
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
23 changes: 23 additions & 0 deletions llvm/lib/Target/AArch64/AArch64InstrInfo.cpp
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -4089,6 +4089,29 @@ AArch64InstrInfo::getLdStOffsetOp(const MachineInstr &MI) {
return MI.getOperand(Idx);
}

const MachineOperand &
AArch64InstrInfo::getLdStAmountOp(const MachineInstr &MI) {
switch (MI.getOpcode()) {
default:
llvm_unreachable("Unexpected opcode");
case AArch64::LDRBroX:
case AArch64::LDRBBroX:
case AArch64::LDRSBXroX:
case AArch64::LDRSBWroX:
case AArch64::LDRHroX:
case AArch64::LDRHHroX:
case AArch64::LDRSHXroX:
case AArch64::LDRSHWroX:
case AArch64::LDRWroX:
case AArch64::LDRSroX:
case AArch64::LDRSWroX:
case AArch64::LDRDroX:
case AArch64::LDRXroX:
case AArch64::LDRQroX:
return MI.getOperand(4);
}
}

static const TargetRegisterClass *getRegClass(const MachineInstr &MI,
Register Reg) {
if (MI.getParent() == nullptr)
Expand Down
3 changes: 3 additions & 0 deletions llvm/lib/Target/AArch64/AArch64InstrInfo.h
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -111,6 +111,9 @@ class AArch64InstrInfo final : public AArch64GenInstrInfo {
/// Returns the immediate offset operator of a load/store.
static const MachineOperand &getLdStOffsetOp(const MachineInstr &MI);

/// Returns the shift amount operator of a load/store.
static const MachineOperand &getLdStAmountOp(const MachineInstr &MI);

/// Returns whether the instruction is FP or NEON.
static bool isFpOrNEON(const MachineInstr &MI);

Expand Down
Loading