[ARM][MachineOutliner] Add default mode.

Use the stack to save and restore the link register when there is no
available register to do it.

Differential Revision: https://reviews.llvm.org/D76069
This commit is contained in:
Yvan Roux 2020-08-20 09:25:33 +02:00
parent dfd447c220
commit 0459f29e8b
4 changed files with 462 additions and 28 deletions

View File

@ -5624,12 +5624,32 @@ bool llvm::HasLowerConstantMaterializationCost(unsigned Val1, unsigned Val2,
/// | Frame overhead in Bytes | 2 | 4 |
/// | Stack fixup required | No | No |
/// +-------------------------+--------+-----+
///
/// \p MachineOutlinerDefault implies that the function should be called with
/// a save and restore of LR to the stack.
///
/// That is,
///
/// I1 Save LR OUTLINED_FUNCTION:
/// I2 --> BL OUTLINED_FUNCTION I1
/// I3 Restore LR I2
/// I3
/// BX LR
///
/// +-------------------------+--------+-----+
/// | | Thumb2 | ARM |
/// +-------------------------+--------+-----+
/// | Call overhead in Bytes | 8 | 12 |
/// | Frame overhead in Bytes | 2 | 4 |
/// | Stack fixup required | Yes | Yes |
/// +-------------------------+--------+-----+
enum MachineOutlinerClass {
MachineOutlinerTailCall,
MachineOutlinerThunk,
MachineOutlinerNoLRSave,
MachineOutlinerRegSave
MachineOutlinerRegSave,
MachineOutlinerDefault
};
enum MachineOutlinerMBBFlags {
@ -5647,6 +5667,8 @@ struct OutlinerCosts {
const int FrameNoLRSave;
const int CallRegSave;
const int FrameRegSave;
const int CallDefault;
const int FrameDefault;
OutlinerCosts(const ARMSubtarget &target)
: CallTailCall(target.isThumb() ? 4 : 4),
@ -5656,7 +5678,9 @@ struct OutlinerCosts {
CallNoLRSave(target.isThumb() ? 4 : 4),
FrameNoLRSave(target.isThumb() ? 4 : 4),
CallRegSave(target.isThumb() ? 8 : 12),
FrameRegSave(target.isThumb() ? 2 : 4) {}
FrameRegSave(target.isThumb() ? 2 : 4),
CallDefault(target.isThumb() ? 8 : 12),
FrameDefault(target.isThumb() ? 2 : 4) {}
};
unsigned
@ -5749,8 +5773,8 @@ outliner::OutlinedFunction ARMBaseInstrInfo::getOutliningCandidateInfo(
};
OutlinerCosts Costs(Subtarget);
unsigned FrameID = 0;
unsigned NumBytesToCreateFrame = 0;
unsigned FrameID = MachineOutlinerDefault;
unsigned NumBytesToCreateFrame = Costs.FrameDefault;
// If the last instruction in any candidate is a terminator, then we should
// tail call all of the candidates.
@ -5766,13 +5790,13 @@ outliner::OutlinedFunction ARMBaseInstrInfo::getOutliningCandidateInfo(
SetCandidateCallInfo(MachineOutlinerThunk, Costs.CallThunk);
} else {
// We need to decide how to emit calls + frames. We can always emit the same
// frame if we don't need to save to the stack.
// frame if we don't need to save to the stack. If we have to save to the
// stack, then we need a different frame.
unsigned NumBytesNoStackCalls = 0;
std::vector<outliner::Candidate> CandidatesWithoutStackFixups;
for (outliner::Candidate &C : RepeatedSequenceLocs) {
C.initLRU(TRI);
// Is LR available? If so, we don't need a save.
if (C.LRU.available(ARM::LR)) {
FrameID = MachineOutlinerNoLRSave;
@ -5789,12 +5813,19 @@ outliner::OutlinedFunction ARMBaseInstrInfo::getOutliningCandidateInfo(
C.setCallInfo(MachineOutlinerRegSave, Costs.CallRegSave);
CandidatesWithoutStackFixups.push_back(C);
}
}
if (!CandidatesWithoutStackFixups.empty()) {
RepeatedSequenceLocs = CandidatesWithoutStackFixups;
} else
return outliner::OutlinedFunction();
// Is SP used in the sequence at all? If not, we don't have to modify
// the stack, so we are guaranteed to get the same frame.
else if (C.UsedInSequence.available(ARM::SP)) {
NumBytesNoStackCalls += Costs.CallDefault;
C.setCallInfo(MachineOutlinerDefault, Costs.CallDefault);
SetCandidateCallInfo(MachineOutlinerDefault, Costs.CallDefault);
CandidatesWithoutStackFixups.push_back(C);
}
else
return outliner::OutlinedFunction();
}
RepeatedSequenceLocs = CandidatesWithoutStackFixups;
}
return outliner::OutlinedFunction(RepeatedSequenceLocs, SequenceSize,
@ -5980,6 +6011,28 @@ ARMBaseInstrInfo::getOutliningType(MachineBasicBlock::iterator &MIT,
return outliner::InstrType::Legal;
}
void ARMBaseInstrInfo::saveLROnStack(MachineBasicBlock &MBB,
MachineBasicBlock::iterator &It) const {
unsigned Opc = Subtarget.isThumb() ? ARM::t2STR_PRE : ARM::STR_PRE_IMM;
int Align = -Subtarget.getStackAlignment().value();
BuildMI(MBB, It, DebugLoc(), get(Opc), ARM::SP)
.addReg(ARM::LR, RegState::Kill)
.addReg(ARM::SP)
.addImm(Align)
.add(predOps(ARMCC::AL));
}
void ARMBaseInstrInfo::restoreLRFromStack(
MachineBasicBlock &MBB, MachineBasicBlock::iterator &It) const {
unsigned Opc = Subtarget.isThumb() ? ARM::t2LDR_POST : ARM::LDR_POST_IMM;
MachineInstrBuilder MIB = BuildMI(MBB, It, DebugLoc(), get(Opc), ARM::LR)
.addReg(ARM::SP, RegState::Define)
.addReg(ARM::SP);
if (!Subtarget.isThumb())
MIB.addReg(0);
MIB.addImm(Subtarget.getStackAlignment().value()).add(predOps(ARMCC::AL));
}
void ARMBaseInstrInfo::buildOutlinedFrame(
MachineBasicBlock &MBB, MachineFunction &MF,
const outliner::OutlinedFunction &OF) const {
@ -6041,21 +6094,29 @@ MachineBasicBlock::iterator ARMBaseInstrInfo::insertOutlinedCall(
CallMIB.add(predOps(ARMCC::AL));
CallMIB.addGlobalAddress(M.getNamedValue(MF.getName()));
if (C.CallConstructionID == MachineOutlinerNoLRSave ||
C.CallConstructionID == MachineOutlinerThunk) {
// No, so just insert the call.
It = MBB.insert(It, CallMIB);
return It;
}
// Can we save to a register?
if (C.CallConstructionID == MachineOutlinerRegSave) {
unsigned Reg = findRegisterToSaveLRTo(C);
assert(Reg != 0 && "No callee-saved register available?");
// Save and restore LR from that register.
if (!MBB.isLiveIn(ARM::LR))
MBB.addLiveIn(ARM::LR);
copyPhysReg(MBB, It, DebugLoc(), Reg, ARM::LR, true);
CallPt = MBB.insert(It, CallMIB);
copyPhysReg(MBB, It, DebugLoc(), ARM::LR, Reg, true);
It--;
return CallPt;
}
// Insert the call.
It = MBB.insert(It, CallMIB);
return It;
// We have the default case. Save and restore from SP.
saveLROnStack(MBB, It);
CallPt = MBB.insert(It, CallMIB);
restoreLRFromStack(MBB, It);
It--;
return CallPt;
}

View File

@ -377,6 +377,16 @@ private:
/// constructing an outlined call if one exists. Returns 0 otherwise.
unsigned findRegisterToSaveLRTo(const outliner::Candidate &C) const;
// Adds an instruction which saves the link register on top of the stack into
/// the MachineBasicBlock \p MBB at position \p It.
void saveLROnStack(MachineBasicBlock &MBB,
MachineBasicBlock::iterator &It) const;
/// Adds an instruction which restores the link register from the top the
/// stack into the MachineBasicBlock \p MBB at position \p It.
void restoreLRFromStack(MachineBasicBlock &MBB,
MachineBasicBlock::iterator &It) const;
unsigned getInstBundleLength(const MachineInstr &MI) const;
int getVLDMDefCycle(const InstrItineraryData *ItinData,

View File

@ -0,0 +1,369 @@
# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -mtriple=arm-- -run-pass=machine-outliner -verify-machineinstrs \
# RUN: %s -o - | FileCheck %s
--- |
define void @outline_default_arm() #0 { ret void }
define void @outline_default_thumb() #1 { ret void }
define void @outline_default_KO_call_arm() #0 { ret void }
define void @outline_default_KO_call_thumb() #1 { ret void }
define void @outline_default_KO_stack_arm() #0 { ret void }
define void @outline_default_KO_stack_thumb() #0 { ret void }
declare void @bar()
attributes #0 = { minsize optsize }
attributes #1 = { minsize optsize "target-features"="+armv7-a,+thumb-mode" }
...
---
name: outline_default_arm
tracksRegLiveness: true
body: |
; CHECK-LABEL: name: outline_default_arm
; CHECK: bb.0:
; CHECK: liveins: $lr
; CHECK: early-clobber $sp = STR_PRE_IMM killed $lr, $sp, -8, 14 /* CC::al */, $noreg
; CHECK: BL @OUTLINED_FUNCTION_0
; CHECK: $lr, $sp = LDR_POST_IMM $sp, $noreg, 8, 14 /* CC::al */, $noreg
; CHECK: bb.1:
; CHECK: liveins: $lr, $r6, $r7, $r8, $r9, $r10, $r11
; CHECK: early-clobber $sp = STR_PRE_IMM killed $lr, $sp, -8, 14 /* CC::al */, $noreg
; CHECK: BL @OUTLINED_FUNCTION_0
; CHECK: $lr, $sp = LDR_POST_IMM $sp, $noreg, 8, 14 /* CC::al */, $noreg
; CHECK: bb.2:
; CHECK: liveins: $lr, $r6, $r7, $r8, $r9, $r10, $r11
; CHECK: early-clobber $sp = STR_PRE_IMM killed $lr, $sp, -8, 14 /* CC::al */, $noreg
; CHECK: BL @OUTLINED_FUNCTION_0
; CHECK: $lr, $sp = LDR_POST_IMM $sp, $noreg, 8, 14 /* CC::al */, $noreg
; CHECK: bb.3:
; CHECK: liveins: $lr, $r6, $r7, $r8, $r9, $r10, $r11
; CHECK: $r2 = MOVr $lr, 14 /* CC::al */, $noreg, $noreg
; CHECK: BX_RET 14 /* CC::al */, $noreg
bb.0:
liveins: $lr
$r0 = MOVi 1, 14, $noreg, $noreg
$r1 = MOVi 1, 14, $noreg, $noreg
$r2 = MOVi 1, 14, $noreg, $noreg
$r3 = MOVi 1, 14, $noreg, $noreg
$r4 = MOVi 1, 14, $noreg, $noreg
$r5 = MOVi 1, 14, $noreg, $noreg
bb.1:
liveins: $lr, $r6, $r7, $r8, $r9, $r10, $r11
$r0 = MOVi 1, 14, $noreg, $noreg
$r1 = MOVi 1, 14, $noreg, $noreg
$r2 = MOVi 1, 14, $noreg, $noreg
$r3 = MOVi 1, 14, $noreg, $noreg
$r4 = MOVi 1, 14, $noreg, $noreg
$r5 = MOVi 1, 14, $noreg, $noreg
bb.2:
liveins: $lr, $r6, $r7, $r8, $r9, $r10, $r11
$r0 = MOVi 1, 14, $noreg, $noreg
$r1 = MOVi 1, 14, $noreg, $noreg
$r2 = MOVi 1, 14, $noreg, $noreg
$r3 = MOVi 1, 14, $noreg, $noreg
$r4 = MOVi 1, 14, $noreg, $noreg
$r5 = MOVi 1, 14, $noreg, $noreg
bb.3:
liveins: $lr, $r6, $r7, $r8, $r9, $r10, $r11
$r2 = MOVr $lr, 14, $noreg, $noreg
BX_RET 14, $noreg
...
---
name: outline_default_thumb
tracksRegLiveness: true
body: |
; CHECK-LABEL: name: outline_default_thumb
; CHECK: bb.0:
; CHECK: liveins: $lr
; CHECK: early-clobber $sp = t2STR_PRE killed $lr, $sp, -8, 14 /* CC::al */, $noreg
; CHECK: tBL 14 /* CC::al */, $noreg, @OUTLINED_FUNCTION_1
; CHECK: $lr, $sp = t2LDR_POST $sp, 8, 14 /* CC::al */, $noreg
; CHECK: bb.1:
; CHECK: liveins: $lr, $r4, $r5, $r6, $r7, $r8, $r9, $r10, $r11
; CHECK: early-clobber $sp = t2STR_PRE killed $lr, $sp, -8, 14 /* CC::al */, $noreg
; CHECK: tBL 14 /* CC::al */, $noreg, @OUTLINED_FUNCTION_1
; CHECK: $lr, $sp = t2LDR_POST $sp, 8, 14 /* CC::al */, $noreg
; CHECK: bb.2:
; CHECK: liveins: $lr, $r4, $r5, $r6, $r7, $r8, $r9, $r10, $r11
; CHECK: early-clobber $sp = t2STR_PRE killed $lr, $sp, -8, 14 /* CC::al */, $noreg
; CHECK: tBL 14 /* CC::al */, $noreg, @OUTLINED_FUNCTION_1
; CHECK: $lr, $sp = t2LDR_POST $sp, 8, 14 /* CC::al */, $noreg
; CHECK: bb.3:
; CHECK: liveins: $lr, $r4, $r5, $r6, $r7, $r8, $r9, $r10, $r11
; CHECK: $r2 = tMOVr $lr, 14 /* CC::al */, $noreg
; CHECK: tBX_RET 14 /* CC::al */, $noreg
bb.0:
liveins: $lr
$r0 = t2MOVi 1, 14, $noreg, $noreg
$r1 = t2MOVi 1, 14, $noreg, $noreg
$r2 = t2MOVi 1, 14, $noreg, $noreg
$r3 = t2MOVi 1, 14, $noreg, $noreg
bb.1:
liveins: $lr, $r4, $r5, $r6, $r7, $r8, $r9, $r10, $r11
$r0 = t2MOVi 1, 14, $noreg, $noreg
$r1 = t2MOVi 1, 14, $noreg, $noreg
$r2 = t2MOVi 1, 14, $noreg, $noreg
$r3 = t2MOVi 1, 14, $noreg, $noreg
bb.2:
liveins: $lr, $r4, $r5, $r6, $r7, $r8, $r9, $r10, $r11
$r0 = t2MOVi 1, 14, $noreg, $noreg
$r1 = t2MOVi 1, 14, $noreg, $noreg
$r2 = t2MOVi 1, 14, $noreg, $noreg
$r3 = t2MOVi 1, 14, $noreg, $noreg
bb.3:
liveins: $lr, $r4, $r5, $r6, $r7, $r8, $r9, $r10, $r11
$r2 = tMOVr $lr, 14, $noreg
tBX_RET 14, $noreg
...
---
name: outline_default_KO_call_arm
tracksRegLiveness: true
body: |
; CHECK-LABEL: name: outline_default_KO_call_arm
; CHECK: bb.0:
; CHECK: liveins: $lr
; CHECK: BL @bar, implicit-def dead $lr, implicit $sp
; CHECK: $r0 = MOVi 2, 14 /* CC::al */, $noreg, $noreg
; CHECK: $r1 = MOVi 2, 14 /* CC::al */, $noreg, $noreg
; CHECK: $r2 = MOVi 2, 14 /* CC::al */, $noreg, $noreg
; CHECK: $r3 = MOVi 2, 14 /* CC::al */, $noreg, $noreg
; CHECK: $r4 = MOVi 2, 14 /* CC::al */, $noreg, $noreg
; CHECK: bb.1:
; CHECK: liveins: $lr, $r5, $r6, $r7, $r8, $r9, $r10, $r11
; CHECK: BL @bar, implicit-def dead $lr, implicit $sp
; CHECK: $r0 = MOVi 2, 14 /* CC::al */, $noreg, $noreg
; CHECK: $r1 = MOVi 2, 14 /* CC::al */, $noreg, $noreg
; CHECK: $r2 = MOVi 2, 14 /* CC::al */, $noreg, $noreg
; CHECK: $r3 = MOVi 2, 14 /* CC::al */, $noreg, $noreg
; CHECK: $r4 = MOVi 2, 14 /* CC::al */, $noreg, $noreg
; CHECK: bb.2:
; CHECK: liveins: $lr, $r5, $r6, $r7, $r8, $r9, $r10, $r11
; CHECK: BL @bar, implicit-def dead $lr, implicit $sp
; CHECK: $r0 = MOVi 2, 14 /* CC::al */, $noreg, $noreg
; CHECK: $r1 = MOVi 2, 14 /* CC::al */, $noreg, $noreg
; CHECK: $r2 = MOVi 2, 14 /* CC::al */, $noreg, $noreg
; CHECK: $r3 = MOVi 2, 14 /* CC::al */, $noreg, $noreg
; CHECK: $r4 = MOVi 2, 14 /* CC::al */, $noreg, $noreg
; CHECK: bb.3:
; CHECK: liveins: $lr, $r5, $r6, $r7, $r8, $r9, $r10, $r11
; CHECK: $r2 = MOVr $lr, 14 /* CC::al */, $noreg, $noreg
; CHECK: BX_RET 14 /* CC::al */, $noreg
bb.0:
liveins: $lr
BL @bar, implicit-def dead $lr, implicit $sp
$r0 = MOVi 2, 14, $noreg, $noreg
$r1 = MOVi 2, 14, $noreg, $noreg
$r2 = MOVi 2, 14, $noreg, $noreg
$r3 = MOVi 2, 14, $noreg, $noreg
$r4 = MOVi 2, 14, $noreg, $noreg
bb.1:
liveins: $lr, $r5, $r6, $r7, $r8, $r9, $r10, $r11
BL @bar, implicit-def dead $lr, implicit $sp
$r0 = MOVi 2, 14, $noreg, $noreg
$r1 = MOVi 2, 14, $noreg, $noreg
$r2 = MOVi 2, 14, $noreg, $noreg
$r3 = MOVi 2, 14, $noreg, $noreg
$r4 = MOVi 2, 14, $noreg, $noreg
bb.2:
liveins: $lr, $r5, $r6, $r7, $r8, $r9, $r10, $r11
BL @bar, implicit-def dead $lr, implicit $sp
$r0 = MOVi 2, 14, $noreg, $noreg
$r1 = MOVi 2, 14, $noreg, $noreg
$r2 = MOVi 2, 14, $noreg, $noreg
$r3 = MOVi 2, 14, $noreg, $noreg
$r4 = MOVi 2, 14, $noreg, $noreg
bb.3:
liveins: $lr, $r5, $r6, $r7, $r8, $r9, $r10, $r11
$r2 = MOVr $lr, 14, $noreg, $noreg
BX_RET 14, $noreg
...
---
name: outline_default_KO_call_thumb
tracksRegLiveness: true
body: |
; CHECK-LABEL: name: outline_default_KO_call_thumb
; CHECK: bb.0:
; CHECK: liveins: $lr
; CHECK: tBL 14 /* CC::al */, $noreg, @bar, implicit-def dead $lr, implicit $sp
; CHECK: $r0 = t2MOVi 2, 14 /* CC::al */, $noreg, $noreg
; CHECK: $r1 = t2MOVi 2, 14 /* CC::al */, $noreg, $noreg
; CHECK: $r2 = t2MOVi 2, 14 /* CC::al */, $noreg, $noreg
; CHECK: bb.1:
; CHECK: liveins: $lr, $r3, $r4, $r5, $r6, $r7, $r8, $r9, $r10, $r11
; CHECK: tBL 14 /* CC::al */, $noreg, @bar, implicit-def dead $lr, implicit $sp
; CHECK: $r0 = t2MOVi 2, 14 /* CC::al */, $noreg, $noreg
; CHECK: $r1 = t2MOVi 2, 14 /* CC::al */, $noreg, $noreg
; CHECK: $r2 = t2MOVi 2, 14 /* CC::al */, $noreg, $noreg
; CHECK: bb.2:
; CHECK: liveins: $lr, $r3, $r4, $r5, $r6, $r7, $r8, $r9, $r10, $r11
; CHECK: tBL 14 /* CC::al */, $noreg, @bar, implicit-def dead $lr, implicit $sp
; CHECK: $r0 = t2MOVi 2, 14 /* CC::al */, $noreg, $noreg
; CHECK: $r1 = t2MOVi 2, 14 /* CC::al */, $noreg, $noreg
; CHECK: $r2 = t2MOVi 2, 14 /* CC::al */, $noreg, $noreg
; CHECK: bb.3:
; CHECK: liveins: $lr, $r3, $r4, $r5, $r6, $r7, $r8, $r9, $r10, $r11
; CHECK: $r2 = tMOVr $lr, 14 /* CC::al */, $noreg
; CHECK: tBX_RET 14 /* CC::al */, $noreg
bb.0:
liveins: $lr
tBL 14, $noreg, @bar, implicit-def dead $lr, implicit $sp
$r0 = t2MOVi 2, 14, $noreg, $noreg
$r1 = t2MOVi 2, 14, $noreg, $noreg
$r2 = t2MOVi 2, 14, $noreg, $noreg
bb.1:
liveins: $lr, $r3, $r4, $r5, $r6, $r7, $r8, $r9, $r10, $r11
tBL 14, $noreg, @bar, implicit-def dead $lr, implicit $sp
$r0 = t2MOVi 2, 14, $noreg, $noreg
$r1 = t2MOVi 2, 14, $noreg, $noreg
$r2 = t2MOVi 2, 14, $noreg, $noreg
bb.2:
liveins: $lr, $r3, $r4, $r5, $r6, $r7, $r8, $r9, $r10, $r11
tBL 14, $noreg, @bar, implicit-def dead $lr, implicit $sp
$r0 = t2MOVi 2, 14, $noreg, $noreg
$r1 = t2MOVi 2, 14, $noreg, $noreg
$r2 = t2MOVi 2, 14, $noreg, $noreg
bb.3:
liveins: $lr, $r3, $r4, $r5, $r6, $r7, $r8, $r9, $r10, $r11
$r2 = tMOVr $lr, 14, $noreg
tBX_RET 14, $noreg
...
---
name: outline_default_KO_stack_arm
tracksRegLiveness: true
body: |
; CHECK-LABEL: name: outline_default_KO_stack_arm
; CHECK: bb.0:
; CHECK: liveins: $lr
; CHECK: $r0 = LDRi12 $sp, 0, 14 /* CC::al */, $noreg
; CHECK: $r1 = MOVi 3, 14 /* CC::al */, $noreg, $noreg
; CHECK: $r2 = MOVi 3, 14 /* CC::al */, $noreg, $noreg
; CHECK: $r3 = MOVi 3, 14 /* CC::al */, $noreg, $noreg
; CHECK: $r4 = MOVi 3, 14 /* CC::al */, $noreg, $noreg
; CHECK: $r5 = MOVi 3, 14 /* CC::al */, $noreg, $noreg
; CHECK: bb.1:
; CHECK: liveins: $lr, $r6, $r7, $r8, $r9, $r10, $r11
; CHECK: $r0 = LDRi12 $sp, 0, 14 /* CC::al */, $noreg
; CHECK: $r1 = MOVi 3, 14 /* CC::al */, $noreg, $noreg
; CHECK: $r2 = MOVi 3, 14 /* CC::al */, $noreg, $noreg
; CHECK: $r3 = MOVi 3, 14 /* CC::al */, $noreg, $noreg
; CHECK: $r4 = MOVi 3, 14 /* CC::al */, $noreg, $noreg
; CHECK: $r5 = MOVi 3, 14 /* CC::al */, $noreg, $noreg
; CHECK: bb.2:
; CHECK: liveins: $lr, $r5, $r6, $r7, $r8, $r9, $r10, $r11
; CHECK: $r0 = LDRi12 $sp, 0, 14 /* CC::al */, $noreg
; CHECK: $r1 = MOVi 3, 14 /* CC::al */, $noreg, $noreg
; CHECK: $r2 = MOVi 3, 14 /* CC::al */, $noreg, $noreg
; CHECK: $r3 = MOVi 3, 14 /* CC::al */, $noreg, $noreg
; CHECK: $r4 = MOVi 3, 14 /* CC::al */, $noreg, $noreg
; CHECK: $r5 = MOVi 3, 14 /* CC::al */, $noreg, $noreg
; CHECK: bb.3:
; CHECK: liveins: $lr, $r5, $r6, $r7, $r8, $r9, $r10, $r11
; CHECK: $r2 = MOVr $lr, 14 /* CC::al */, $noreg, $noreg
; CHECK: BX_RET 14 /* CC::al */, $noreg
bb.0:
liveins: $lr
$r0 = LDRi12 $sp, 0, 14, $noreg
$r1 = MOVi 3, 14, $noreg, $noreg
$r2 = MOVi 3, 14, $noreg, $noreg
$r3 = MOVi 3, 14, $noreg, $noreg
$r4 = MOVi 3, 14, $noreg, $noreg
$r5 = MOVi 3, 14, $noreg, $noreg
bb.1:
liveins: $lr, $r6, $r7, $r8, $r9, $r10, $r11
$r0 = LDRi12 $sp, 0, 14, $noreg
$r1 = MOVi 3, 14, $noreg, $noreg
$r2 = MOVi 3, 14, $noreg, $noreg
$r3 = MOVi 3, 14, $noreg, $noreg
$r4 = MOVi 3, 14, $noreg, $noreg
$r5 = MOVi 3, 14, $noreg, $noreg
bb.2:
liveins: $lr, $r5, $r6, $r7, $r8, $r9, $r10, $r11
$r0 = LDRi12 $sp, 0, 14, $noreg
$r1 = MOVi 3, 14, $noreg, $noreg
$r2 = MOVi 3, 14, $noreg, $noreg
$r3 = MOVi 3, 14, $noreg, $noreg
$r4 = MOVi 3, 14, $noreg, $noreg
$r5 = MOVi 3, 14, $noreg, $noreg
bb.3:
liveins: $lr, $r5, $r6, $r7, $r8, $r9, $r10, $r11
$r2 = MOVr $lr, 14, $noreg, $noreg
BX_RET 14, $noreg
...
---
name: outline_default_KO_stack_thumb
tracksRegLiveness: true
body: |
; CHECK-LABEL: name: outline_default_KO_stack_thumb
; CHECK: bb.0:
; CHECK: liveins: $lr
; CHECK: $r0 = t2LDRi12 $sp, 0, 14 /* CC::al */, $noreg
; CHECK: $r1 = t2MOVi 3, 14 /* CC::al */, $noreg, $noreg
; CHECK: $r2 = t2MOVi 3, 14 /* CC::al */, $noreg, $noreg
; CHECK: $r3 = t2MOVi 3, 14 /* CC::al */, $noreg, $noreg
; CHECK: bb.1:
; CHECK: liveins: $lr, $r4, $r5, $r6, $r7, $r8, $r9, $r10, $r11
; CHECK: $r0 = t2LDRi12 $sp, 0, 14 /* CC::al */, $noreg
; CHECK: $r1 = t2MOVi 3, 14 /* CC::al */, $noreg, $noreg
; CHECK: $r2 = t2MOVi 3, 14 /* CC::al */, $noreg, $noreg
; CHECK: $r3 = t2MOVi 3, 14 /* CC::al */, $noreg, $noreg
; CHECK: bb.2:
; CHECK: liveins: $lr, $r4, $r5, $r6, $r7, $r8, $r9, $r10, $r11
; CHECK: $r0 = t2LDRi12 $sp, 0, 14 /* CC::al */, $noreg
; CHECK: $r1 = t2MOVi 3, 14 /* CC::al */, $noreg, $noreg
; CHECK: $r2 = t2MOVi 3, 14 /* CC::al */, $noreg, $noreg
; CHECK: $r3 = t2MOVi 3, 14 /* CC::al */, $noreg, $noreg
; CHECK: bb.3:
; CHECK: liveins: $lr, $r4, $r5, $r6, $r7, $r8, $r9, $r10, $r11
; CHECK: $r2 = tMOVr $lr, 14 /* CC::al */, $noreg
; CHECK: tBX_RET 14 /* CC::al */, $noreg
bb.0:
liveins: $lr
$r0 = t2LDRi12 $sp, 0, 14, $noreg
$r1 = t2MOVi 3, 14, $noreg, $noreg
$r2 = t2MOVi 3, 14, $noreg, $noreg
$r3 = t2MOVi 3, 14, $noreg, $noreg
bb.1:
liveins: $lr, $r4, $r5, $r6, $r7, $r8, $r9, $r10, $r11
$r0 = t2LDRi12 $sp, 0, 14, $noreg
$r1 = t2MOVi 3, 14, $noreg, $noreg
$r2 = t2MOVi 3, 14, $noreg, $noreg
$r3 = t2MOVi 3, 14, $noreg, $noreg
bb.2:
liveins: $lr, $r4, $r5, $r6, $r7, $r8, $r9, $r10, $r11
$r0 = t2LDRi12 $sp, 0, 14, $noreg
$r1 = t2MOVi 3, 14, $noreg, $noreg
$r2 = t2MOVi 3, 14, $noreg, $noreg
$r3 = t2MOVi 3, 14, $noreg, $noreg
bb.3:
liveins: $lr, $r4, $r5, $r6, $r7, $r8, $r9, $r10, $r11
$r2 = tMOVr $lr, 14, $noreg
tBX_RET 14, $noreg
; CHECK-LABEL: name: OUTLINED_FUNCTION_0
; CHECK: bb.0:
; CHECK: liveins: $lr, $r6, $r7, $r8, $r9, $r10, $r11
; CHECK: $r0 = MOVi 1, 14 /* CC::al */, $noreg, $noreg
; CHECK: $r1 = MOVi 1, 14 /* CC::al */, $noreg, $noreg
; CHECK: $r2 = MOVi 1, 14 /* CC::al */, $noreg, $noreg
; CHECK: $r3 = MOVi 1, 14 /* CC::al */, $noreg, $noreg
; CHECK: $r4 = MOVi 1, 14 /* CC::al */, $noreg, $noreg
; CHECK: $r5 = MOVi 1, 14 /* CC::al */, $noreg, $noreg
; CHECK: MOVPCLR 14 /* CC::al */, $noreg
; CHECK-LABEL: name: OUTLINED_FUNCTION_1
; CHECK: bb.0:
; CHECK: liveins: $lr, $r4, $r5, $r6, $r7, $r8, $r9, $r10, $r11
; CHECK: $r0 = t2MOVi 1, 14 /* CC::al */, $noreg, $noreg
; CHECK: $r1 = t2MOVi 1, 14 /* CC::al */, $noreg, $noreg
; CHECK: $r2 = t2MOVi 1, 14 /* CC::al */, $noreg, $noreg
; CHECK: $r3 = t2MOVi 1, 14 /* CC::al */, $noreg, $noreg
; CHECK: tBX_RET 14 /* CC::al */, $noreg

View File

@ -28,12 +28,9 @@ body: |
; CHECK: $lr = MOVr killed $r6, 14 /* CC::al */, $noreg, $noreg
; CHECK: bb.2:
; CHECK: liveins: $lr
; CHECK: $r0 = MOVi 1, 14 /* CC::al */, $noreg, $noreg
; CHECK: $r1 = MOVi 1, 14 /* CC::al */, $noreg, $noreg
; CHECK: $r2 = MOVi 1, 14 /* CC::al */, $noreg, $noreg
; CHECK: $r3 = MOVi 1, 14 /* CC::al */, $noreg, $noreg
; CHECK: $r4 = MOVi 1, 14 /* CC::al */, $noreg, $noreg
; CHECK: $r5 = MOVi 1, 14 /* CC::al */, $noreg, $noreg
; CHECK: early-clobber $sp = STR_PRE_IMM killed $lr, $sp, -8, 14 /* CC::al */, $noreg
; CHECK: BL @OUTLINED_FUNCTION_1
; CHECK: $lr, $sp = LDR_POST_IMM $sp, $noreg, 8, 14 /* CC::al */, $noreg
; CHECK: bb.3:
; CHECK: liveins: $lr, $r0, $r6, $r7, $r8, $r9, $r10, $r11
; CHECK: $r6 = MOVr killed $lr, 14 /* CC::al */, $noreg, $noreg
@ -98,12 +95,9 @@ body: |
; CHECK: $lr = tMOVr killed $r6, 14 /* CC::al */, $noreg
; CHECK: bb.2:
; CHECK: liveins: $lr
; CHECK: $r0 = t2MOVi 1, 14 /* CC::al */, $noreg, $noreg
; CHECK: $r1 = t2MOVi 1, 14 /* CC::al */, $noreg, $noreg
; CHECK: $r2 = t2MOVi 1, 14 /* CC::al */, $noreg, $noreg
; CHECK: $r3 = t2MOVi 1, 14 /* CC::al */, $noreg, $noreg
; CHECK: $r4 = t2MOVi 1, 14 /* CC::al */, $noreg, $noreg
; CHECK: $r5 = t2MOVi 1, 14 /* CC::al */, $noreg, $noreg
; CHECK: early-clobber $sp = t2STR_PRE killed $lr, $sp, -8, 14 /* CC::al */, $noreg
; CHECK: tBL 14 /* CC::al */, $noreg, @OUTLINED_FUNCTION_0
; CHECK: $lr, $sp = t2LDR_POST $sp, 8, 14 /* CC::al */, $noreg
; CHECK: bb.3:
; CHECK: liveins: $lr, $r0, $r6, $r7
; CHECK: $r6 = tMOVr killed $lr, 14 /* CC::al */, $noreg