aboutsummaryrefslogtreecommitdiff
path: root/backend/lib/Target/RISCV/RISCVFrameLowering.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'backend/lib/Target/RISCV/RISCVFrameLowering.cpp')
-rw-r--r--backend/lib/Target/RISCV/RISCVFrameLowering.cpp60
1 files changed, 28 insertions, 32 deletions
diff --git a/backend/lib/Target/RISCV/RISCVFrameLowering.cpp b/backend/lib/Target/RISCV/RISCVFrameLowering.cpp
index dd59ba9..9e921f0 100644
--- a/backend/lib/Target/RISCV/RISCVFrameLowering.cpp
+++ b/backend/lib/Target/RISCV/RISCVFrameLowering.cpp
@@ -43,10 +43,6 @@ constexpr std::uint8_t DwarfCFAExpression = 0x10U;
constexpr std::uint8_t DwarfOpBaseRegister0 = 0x70U;
constexpr std::uint8_t DwarfOpBaseRegisterExtended = 0x92U;
-[[nodiscard]] Expected<PhysicalRegister> physical(PhysicalRegisterID ID) {
- return physicalRegister(ID);
-}
-
[[nodiscard]] constexpr bool fitsSigned12(std::int64_t Value) noexcept {
return Value >= MinSigned12 && Value <= MaxSigned12;
}
@@ -182,13 +178,13 @@ struct CallFrameRequirement final {
const TargetDescription &Target) {
std::vector<PhysicalRegister> FrameRegisters;
if (requiresFramePointer(Function)) {
- auto FP = physical(PhysicalRegisterID::X8);
+ auto FP = physicalRegister(PhysicalRegisterID::X8);
if (!FP)
return std::unexpected(FP.error());
FrameRegisters.push_back(*FP);
}
if (requiresBasePointer(Function)) {
- auto BP = physical(PhysicalRegisterID::X9);
+ auto BP = physicalRegister(PhysicalRegisterID::X9);
if (!BP)
return std::unexpected(BP.error());
FrameRegisters.push_back(*BP);
@@ -214,7 +210,7 @@ struct CallFrameRequirement final {
}
if (!requiresStackRealignment(Function))
return {};
- auto OldFPScratch = physical(PhysicalRegisterID::X5);
+ auto OldFPScratch = physicalRegister(PhysicalRegisterID::X5);
if (!OldFPScratch)
return std::unexpected(OldFPScratch.error());
const auto OverlapsScratch = [&](PhysicalRegister Reg) {
@@ -349,7 +345,7 @@ modifiedCalleeSavedRegisters(const MachineFunction &Function, const TargetDescri
"RISC-V callee-save analysis found a null register mask");
}
for (const PhysicalRegisterID ID : saveOrder()) {
- auto Reg = physical(ID);
+ auto Reg = physicalRegister(ID);
if (!Reg)
return std::unexpected(Reg.error());
if (Mask->Mask->clobbers(*Reg))
@@ -368,14 +364,14 @@ modifiedCalleeSavedRegisters(const MachineFunction &Function, const TargetDescri
std::vector<PhysicalRegister> Result;
for (const PhysicalRegisterID ID : saveOrder()) {
- auto Reg = physical(ID);
+ auto Reg = physicalRegister(ID);
if (!Reg)
return std::unexpected(Reg.error());
if (Modified.contains(*Reg))
Result.push_back(*Reg);
}
if (requiresFramePointer(Function)) {
- auto FP = physical(PhysicalRegisterID::X8);
+ auto FP = physicalRegister(PhysicalRegisterID::X8);
if (!FP)
return std::unexpected(FP.error());
if (std::ranges::find(Result, *FP) == Result.end()) {
@@ -385,7 +381,7 @@ modifiedCalleeSavedRegisters(const MachineFunction &Function, const TargetDescri
}
}
if (requiresBasePointer(Function)) {
- auto BP = physical(PhysicalRegisterID::X9);
+ auto BP = physicalRegister(PhysicalRegisterID::X9);
if (!BP)
return std::unexpected(BP.error());
if (std::ranges::find(Result, *BP) == Result.end()) {
@@ -720,7 +716,7 @@ emitSavedRegisterCFI(MachineIRBuilder &Builder, const TargetDescription &Target,
[[nodiscard]] Expected<std::vector<PhysicalRegister>> scratchRegisters() {
std::vector<PhysicalRegister> Result;
for (const PhysicalRegisterID ID : scratchOrder()) {
- auto Reg = physical(ID);
+ auto Reg = physicalRegister(ID);
if (!Reg)
return std::unexpected(Reg.error());
Result.push_back(*Reg);
@@ -982,7 +978,7 @@ emitSavedRegisterCFI(MachineIRBuilder &Builder, const TargetDescription &Target,
return std::unexpected(Adjusted.error());
Offset = *Adjusted;
}
- auto Base = physical(BaseID);
+ auto Base = physicalRegister(BaseID);
if (!Base)
return std::unexpected(Base.error());
return FrameIndexReference{*Base, Offset};
@@ -1035,7 +1031,7 @@ emitCalleeSave(MachineIRBuilder &Builder, PhysicalRegister Reg, FrameIndex Index
[[nodiscard]] bool isABIStackSaveRegister(PhysicalRegister Reg) {
return std::ranges::any_of(saveOrder(), [Reg](PhysicalRegisterID ID) {
- auto Candidate = physical(ID);
+ auto Candidate = physicalRegister(ID);
return Candidate && *Candidate == Reg;
});
}
@@ -1141,7 +1137,7 @@ public:
isCalleeSavedRegister(PhysicalRegister Reg, const MachineFunction &,
const TargetDescription &Target) const noexcept override {
return std::ranges::any_of(saveOrder(), [&](PhysicalRegisterID ID) {
- const auto Candidate = physical(ID);
+ const auto Candidate = physicalRegister(ID);
return Candidate && Target.registers().regsOverlap(Reg, *Candidate);
});
}
@@ -1326,9 +1322,9 @@ public:
return makeUnexpected(ErrorCode::VerificationError,
"RISC-V callee-save frame has no valid save block");
}
- auto FP = physical(PhysicalRegisterID::X8);
- auto BP = physical(PhysicalRegisterID::X9);
- auto OldFP = physical(PhysicalRegisterID::X5);
+ auto FP = physicalRegister(PhysicalRegisterID::X8);
+ auto BP = physicalRegister(PhysicalRegisterID::X9);
+ auto OldFP = physicalRegister(PhysicalRegisterID::X5);
if (!FP || !BP || !OldFP)
return makeUnexpected(ErrorCode::InternalError, "RISC-V frame registers are unavailable");
const bool Realign = requiresStackRealignment(Function);
@@ -1488,12 +1484,12 @@ public:
const std::uint64_t StackSize = Function.frameInfo().state().StackSize;
const std::uint64_t StackAlignment = requiredStackAlignment(Function);
const bool Realign = requiresStackRealignment(Function);
- auto SP = physical(PhysicalRegisterID::X2);
- auto FP = physical(PhysicalRegisterID::X8);
- auto BP = physical(PhysicalRegisterID::X9);
- auto Zero = physical(PhysicalRegisterID::X0);
- auto OldFP = physical(PhysicalRegisterID::X5);
- auto DefaultTemporary = physical(PhysicalRegisterID::X6);
+ auto SP = physicalRegister(PhysicalRegisterID::X2);
+ auto FP = physicalRegister(PhysicalRegisterID::X8);
+ auto BP = physicalRegister(PhysicalRegisterID::X9);
+ auto Zero = physicalRegister(PhysicalRegisterID::X0);
+ auto OldFP = physicalRegister(PhysicalRegisterID::X5);
+ auto DefaultTemporary = physicalRegister(PhysicalRegisterID::X6);
if (!SP || !FP || !BP || !Zero || !OldFP || !DefaultTemporary) {
return makeUnexpected(ErrorCode::InternalError, "RISC-V frame registers are unavailable");
}
@@ -1673,9 +1669,9 @@ public:
RegisterScavenger &Scavenger) const override {
if (!isFrameRestoreBlock(Function, Block))
return {};
- auto FP = physical(PhysicalRegisterID::X8);
- auto SP = physical(PhysicalRegisterID::X2);
- auto BP = physical(PhysicalRegisterID::X9);
+ auto FP = physicalRegister(PhysicalRegisterID::X8);
+ auto SP = physicalRegister(PhysicalRegisterID::X2);
+ auto BP = physicalRegister(PhysicalRegisterID::X9);
if (!FP || !SP || !BP) {
return makeUnexpected(ErrorCode::InternalError, "RISC-V frame registers are unavailable");
}
@@ -1801,7 +1797,7 @@ public:
return std::unexpected(Adjust.error());
} else {
auto Candidates = scratchRegisters();
- auto Zero = physical(PhysicalRegisterID::X0);
+ auto Zero = physicalRegister(PhysicalRegisterID::X0);
if (!Candidates || !Zero)
return std::unexpected(!Candidates ? Candidates.error() : Zero.error());
auto Scratch = Scavenger.scavenge(Terminator, *Candidates);
@@ -1864,7 +1860,7 @@ public:
BaseID = PhysicalRegisterID::X9;
}
}
- auto Base = physical(BaseID);
+ auto Base = physicalRegister(BaseID);
if (!Base)
return std::unexpected(Base.error());
return FrameIndexReference{*Base, *Offset};
@@ -1928,7 +1924,7 @@ public:
auto Point = Builder.setInsertPointBefore(Instruction);
if (!Point)
return std::unexpected(Point.error());
- auto Zero = physical(PhysicalRegisterID::X0);
+ auto Zero = physicalRegister(PhysicalRegisterID::X0);
if (!Zero)
return std::unexpected(Zero.error());
auto Constant = emitConstant(Builder, Scratch->Reg, *Zero, Reference->Offset, std::nullopt);
@@ -1961,7 +1957,7 @@ private:
MachineInstrFlag Flag) const {
if (Amount == 0)
return {};
- auto SP = physical(PhysicalRegisterID::X2);
+ auto SP = physicalRegister(PhysicalRegisterID::X2);
if (!SP)
return std::unexpected(SP.error());
MachineIRBuilder Builder(Function, Target);
@@ -1993,7 +1989,7 @@ private:
if (!Saved)
return std::unexpected(Saved.error());
}
- auto Zero = physical(PhysicalRegisterID::X0);
+ auto Zero = physicalRegister(PhysicalRegisterID::X0);
if (!Zero)
return std::unexpected(Zero.error());
auto Constant = emitConstant(Builder, Scratch->Reg, *Zero, Amount, Flag);
generated by cgit v1.2.3 (git 2.46.0) at 2026-10-29 06:24:18 +0000