[llvm-branch-commits] [clang] [RISCV] Integrate RISCV target in baremetal toolchain object and deprecate RISCVToolchain object (PR #121831)

[Petr Hosek via llvm-branch-commits]

================
@@ -336,6 +336,26 @@ BareMetal::OrderedMultilibs BareMetal::getOrderedMultilibs() const {
   return llvm::reverse(Default);
 }
 
+ToolChain::CXXStdlibType BareMetal::GetDefaultCXXStdlibType() const {
+  if (getTriple().isRISCV() && GCCInstallation.isValid())
+    return ToolChain::CST_Libstdcxx;
+  return ToolChain::CST_Libcxx;
+}
+
+ToolChain::RuntimeLibType BareMetal::GetDefaultRuntimeLibType() const {
+  if (getTriple().isRISCV() && GCCInstallation.isValid())
+    return ToolChain::RLT_Libgcc;
+  return ToolChain::RLT_CompilerRT;
+}
+
+ToolChain::UnwindLibType
+BareMetal::GetUnwindLibType(const llvm::opt::ArgList &Args) const {
+  if (getTriple().isRISCV())
+    return ToolChain::UNW_None;
----------------
petrhosek wrote:

Shouldn't this return `UNW_Libgcc`?
```suggestion
    return ToolChain::UNW_Libgcc;
```

https://github.com/llvm/llvm-project/pull/121831