[RISCV] Use Triple::isRISCV/isRISCV32/isRISCV64 helps in some places. NFC

Reviewed By: reames

Differential Revision: https://reviews.llvm.org/D132197

Author: topperc

clang/lib/CodeGen/CodeGenModule.cpp

@@ -968,14 +968,9 @@ void CodeGenModule::EmitOpenCLMetadata() {
 
 void CodeGenModule::EmitBackendOptionsMetadata(
     const CodeGenOptions CodeGenOpts) {
-  switch (getTriple().getArch()) {
-  default:
-    break;
-  case llvm::Triple::riscv32:
-  case llvm::Triple::riscv64:
+  if (getTriple().isRISCV()) {
     getModule().addModuleFlag(llvm::Module::Error, "SmallDataLimit",
                               CodeGenOpts.SmallDataLimit);
-    break;
   }
 }
 

clang/lib/Driver/ToolChains/Arch/RISCV.cpp

@@ -52,7 +52,7 @@ static void getRISCFeaturesFromMcpu(const Driver &D, const llvm::Triple &Triple,
                                     const llvm::opt::ArgList &Args,
                                     const llvm::opt::Arg *A, StringRef Mcpu,
                                     std::vector<StringRef> &Features) {
-  bool Is64Bit = (Triple.getArch() == llvm::Triple::riscv64);
+  bool Is64Bit = Triple.isRISCV64();
   llvm::RISCV::CPUKind CPUKind = llvm::RISCV::parseCPUKind(Mcpu);
   if (!llvm::RISCV::checkCPUKind(CPUKind, Is64Bit) ||
       !llvm::RISCV::getCPUFeaturesExceptStdExt(CPUKind, Features)) {
@@ -163,9 +163,7 @@ void riscv::getRISCVTargetFeatures(const Driver &D, const llvm::Triple &Triple,
 }
 
 StringRef riscv::getRISCVABI(const ArgList &Args, const llvm::Triple &Triple) {
-  assert((Triple.getArch() == llvm::Triple::riscv32 ||
-          Triple.getArch() == llvm::Triple::riscv64) &&
-         "Unexpected triple");
+  assert(Triple.isRISCV() && "Unexpected triple");
 
   // GCC's logic around choosing a default `-mabi=` is complex. If GCC is not
   // configured using `--with-abi=`, then the logic for the default choice is
@@ -213,7 +211,7 @@ StringRef riscv::getRISCVABI(const ArgList &Args, const llvm::Triple &Triple) {
   // We deviate from GCC's defaults here:
   // - On `riscv{XLEN}-unknown-elf` we use the integer calling convention only.
   // - On all other OSs we use the double floating point calling convention.
-  if (Triple.getArch() == llvm::Triple::riscv32) {
+  if (Triple.isRISCV32()) {
     if (Triple.getOS() == llvm::Triple::UnknownOS)
       return "ilp32";
     else
@@ -228,9 +226,7 @@ StringRef riscv::getRISCVABI(const ArgList &Args, const llvm::Triple &Triple) {
 
 StringRef riscv::getRISCVArch(const llvm::opt::ArgList &Args,
                               const llvm::Triple &Triple) {
-  assert((Triple.getArch() == llvm::Triple::riscv32 ||
-          Triple.getArch() == llvm::Triple::riscv64) &&
-         "Unexpected triple");
+  assert(Triple.isRISCV() && "Unexpected triple");
 
   // GCC's logic around choosing a default `-march=` is complex. If GCC is not
   // configured using `--with-arch=`, then the logic for the default choice is
@@ -291,7 +287,7 @@ StringRef riscv::getRISCVArch(const llvm::opt::ArgList &Args,
   // We deviate from GCC's defaults here:
   // - On `riscv{XLEN}-unknown-elf` we default to `rv{XLEN}imac`
   // - On all other OSs we use `rv{XLEN}imafdc` (equivalent to `rv{XLEN}gc`)
-  if (Triple.getArch() == llvm::Triple::riscv32) {
+  if (Triple.isRISCV32()) {
     if (Triple.getOS() == llvm::Triple::UnknownOS)
       return "rv32imac";
     else

clang/lib/Driver/ToolChains/BareMetal.cpp

@@ -39,7 +39,7 @@ static bool findRISCVMultilibs(const Driver &D,
   StringRef Arch = riscv::getRISCVArch(Args, TargetTriple);
   StringRef Abi = tools::riscv::getRISCVABI(Args, TargetTriple);
 
-  if (TargetTriple.getArch() == llvm::Triple::riscv64) {
+  if (TargetTriple.isRISCV64()) {
     Multilib Imac = makeMultilib("").flag("+march=rv64imac").flag("+mabi=lp64");
     Multilib Imafdc = makeMultilib("/rv64imafdc/lp64d")
                           .flag("+march=rv64imafdc")
@@ -57,7 +57,7 @@ static bool findRISCVMultilibs(const Driver &D,
     Result.Multilibs = MultilibSet().Either(Imac, Imafdc);
     return Result.Multilibs.select(Flags, Result.SelectedMultilib);
   }
-  if (TargetTriple.getArch() == llvm::Triple::riscv32) {
+  if (TargetTriple.isRISCV32()) {
     Multilib Imac =
         makeMultilib("").flag("+march=rv32imac").flag("+mabi=ilp32");
     Multilib I =
@@ -140,8 +140,7 @@ static bool isAArch64BareMetal(const llvm::Triple &Triple) {
 }
 
 static bool isRISCVBareMetal(const llvm::Triple &Triple) {
-  if (Triple.getArch() != llvm::Triple::riscv32 &&
-      Triple.getArch() != llvm::Triple::riscv64)
+  if (!Triple.isRISCV())
     return false;
 
   if (Triple.getVendor() != llvm::Triple::UnknownVendor)