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

[Garvit Gupta 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())
----------------
quic-garvgupt wrote:

This is done because in RISCVToolchain, it was UNW_NONE. It seems 
counter-intuitive however this is done to perserve the behavior of both 
RISCVToolchain and BareMetal toolchain

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