[PATCH] D100658: [RISCV] Apply __clang_riscv_builtin_alias to overloaded builtins.

[Hsiangkai Wang via Phabricator via cfe-commits]

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We only apply `__clang_riscv_builtin_alias` to non-masked builtins.
Masked builtins could not use `__clang_riscv_builtin_alias` because the operand order is different between overloaded intrinsics and builtins.

A bunch of test cases need to be updated. I only update `clang/test/CodeGen/RISCV/rvv-intrinsics-overloaded/vadd.c` for demonstration.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D100658

Files:
  clang/test/CodeGen/RISCV/rvv-intrinsics-overloaded/vadd.c
  clang/utils/TableGen/RISCVVEmitter.cpp

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