[RISCV][AArch64] Don't allow -mvscale-min/max options to be passed to the clang driver.

[topperc]

The driver doesn't have code to pass these down to cc1. It just prints an unused option warning. Remove them from the driver.

[llvmbot]

@llvm/pr-subscribers-clang
@llvm/pr-subscribers-clang-driver
@llvm/pr-subscribers-backend-aarch64

@llvm/pr-subscribers-backend-risc-v

Changes

The driver doesn't have code to pass these down to cc1. It just prints an unused option warning. Remove them from the driver.

---

Full diff: https://github.com/llvm/llvm-project/pull/68065.diff

1 Files Affected:

• (modified) clang/include/clang/Driver/Options.td (+2-4)

diff --git a/clang/include/clang/Driver/Options.td b/clang/include/clang/Driver/Options.td
index ee4e23f335e7875..87159dd64dc7a7b 100644
--- a/clang/include/clang/Driver/Options.td
+++ b/clang/include/clang/Driver/Options.td
@@ -4563,13 +4563,11 @@ def msve_vector_bits_EQ : Joined<["-"], "msve-vector-bits=">, Group<m_aarch64_Fe
 } // let Flags = [TargetSpecific]
 
 def mvscale_min_EQ : Joined<["-"], "mvscale-min=">,
-  Group<m_aarch64_Features_Group>, Flags<[NoXarchOption]>,
-  Visibility<[ClangOption, CC1Option, FC1Option]>,
+  Visibility<[CC1Option, FC1Option]>,
   HelpText<"Specify the vscale minimum. Defaults to \"1\". (AArch64/RISC-V only)">,
   MarshallingInfoInt<LangOpts<"VScaleMin">>;
 def mvscale_max_EQ : Joined<["-"], "mvscale-max=">,
-  Group<m_aarch64_Features_Group>, Flags<[NoXarchOption]>,
-  Visibility<[ClangOption, CC1Option, FC1Option]>,
+  Visibility<[CC1Option, FC1Option]>,
   HelpText<"Specify the vscale maximum. Defaults to the"
            " vector length agnostic value of \"0\". (AArch64/RISC-V only)">,
   MarshallingInfoInt<LangOpts<"VScaleMax">>;