[clang] [llvm] [RISCV] Add partial support for -fzero-call-used-regs (PR #194883)

[Craig Topper via cfe-commits]

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@@ -4977,7 +4977,7 @@ defm raw_string_literals : BoolFOption<"raw-string-literals",
 def fzero_call_used_regs_EQ
     : Joined<["-"], "fzero-call-used-regs=">, Group<f_Group>,
     Visibility<[ClangOption, CC1Option]>,
-      HelpText<"Clear call-used registers upon function return (AArch64/x86 only)">,
+      HelpText<"Clear call-used registers upon function return (AArch64/RISCV/x86 only)">,
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topperc wrote:

RISC-V

https://github.com/llvm/llvm-project/pull/194883