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ARM: Remove CPU from computeTargetABI #151983

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Aug 5, 2025
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5 changes: 2 additions & 3 deletions llvm/include/llvm/TargetParser/ARMTargetParser.h
Original file line number Diff line number Diff line change
Expand Up @@ -270,10 +270,9 @@ LLVM_ABI ProfileKind parseArchProfile(StringRef Arch);
LLVM_ABI unsigned parseArchVersion(StringRef Arch);

LLVM_ABI void fillValidCPUArchList(SmallVectorImpl<StringRef> &Values);
LLVM_ABI StringRef computeDefaultTargetABI(const Triple &TT, StringRef CPU);
LLVM_ABI StringRef computeDefaultTargetABI(const Triple &TT);

LLVM_ABI ARMABI computeTargetABI(const Triple &TT, StringRef CPU,
StringRef ABIName = "");
LLVM_ABI ARMABI computeTargetABI(const Triple &TT, StringRef ABIName = "");

/// Get the (LLVM) name of the minimum ARM CPU for the arch we are targeting.
///
Expand Down
11 changes: 5 additions & 6 deletions llvm/lib/Target/ARM/ARMTargetMachine.cpp
Original file line number Diff line number Diff line change
Expand Up @@ -121,10 +121,10 @@ static std::unique_ptr<TargetLoweringObjectFile> createTLOF(const Triple &TT) {
return std::make_unique<ARMElfTargetObjectFile>();
}

static std::string computeDataLayout(const Triple &TT, StringRef CPU,
static std::string computeDataLayout(const Triple &TT,
const TargetOptions &Options,
bool isLittle) {
auto ABI = ARM::computeTargetABI(TT, CPU, Options.MCOptions.ABIName);
auto ABI = ARM::computeTargetABI(TT, Options.MCOptions.ABIName);
std::string Ret;

if (isLittle)
Expand Down Expand Up @@ -202,11 +202,10 @@ ARMBaseTargetMachine::ARMBaseTargetMachine(const Target &T, const Triple &TT,
std::optional<Reloc::Model> RM,
std::optional<CodeModel::Model> CM,
CodeGenOptLevel OL, bool isLittle)
: CodeGenTargetMachineImpl(T, computeDataLayout(TT, CPU, Options, isLittle),
TT, CPU, FS, Options,
getEffectiveRelocModel(TT, RM),
: CodeGenTargetMachineImpl(T, computeDataLayout(TT, Options, isLittle), TT,
CPU, FS, Options, getEffectiveRelocModel(TT, RM),
getEffectiveCodeModel(CM, CodeModel::Small), OL),
TargetABI(ARM::computeTargetABI(TT, CPU, Options.MCOptions.ABIName)),
TargetABI(ARM::computeTargetABI(TT, Options.MCOptions.ABIName)),
TLOF(createTLOF(getTargetTriple())), isLittle(isLittle) {

// Default to triple-appropriate float ABI
Expand Down
10 changes: 4 additions & 6 deletions llvm/lib/TargetParser/ARMTargetParser.cpp
Original file line number Diff line number Diff line change
Expand Up @@ -535,9 +535,8 @@ void ARM::fillValidCPUArchList(SmallVectorImpl<StringRef> &Values) {
}
}

StringRef ARM::computeDefaultTargetABI(const Triple &TT, StringRef CPU) {
StringRef ArchName =
CPU.empty() ? TT.getArchName() : getArchName(parseCPUArch(CPU));
StringRef ARM::computeDefaultTargetABI(const Triple &TT) {
StringRef ArchName = TT.getArchName();

if (TT.isOSBinFormatMachO()) {
if (TT.getEnvironment() == Triple::EABI ||
Expand Down Expand Up @@ -575,10 +574,9 @@ StringRef ARM::computeDefaultTargetABI(const Triple &TT, StringRef CPU) {
}
}

ARM::ARMABI ARM::computeTargetABI(const Triple &TT, StringRef CPU,
StringRef ABIName) {
ARM::ARMABI ARM::computeTargetABI(const Triple &TT, StringRef ABIName) {
if (ABIName.empty())
ABIName = ARM::computeDefaultTargetABI(TT, CPU);
ABIName = ARM::computeDefaultTargetABI(TT);

if (ABIName == "aapcs16")
return ARM_ABI_AAPCS16;
Expand Down
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