[clang] [llvm] [RISCV] CodeGen of RVE and ilp32e/lp64e ABIs (PR #76777)

[Craig Topper via cfe-commits]

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@@ -285,13 +286,16 @@ StringRef riscv::getRISCVArch(const llvm::opt::ArgList &Args,
   // 3. Choose a default based on `-mabi=`
   //
   // ilp32e -> rv32e
+  // lp64e -> rv64e
   // ilp32 | ilp32f | ilp32d -> rv32imafdc
   // lp64 | lp64f | lp64d -> rv64imafdc
   if (const Arg *A = Args.getLastArg(options::OPT_mabi_EQ)) {
     StringRef MABI = A->getValue();
 
     if (MABI.equals_insensitive("ilp32e"))
       return "rv32e";
+    else if (MABI.starts_with_insensitive("lp64e"))
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topperc wrote:

`equals_insensitive` like lip32e?

https://github.com/llvm/llvm-project/pull/76777