[all-commits] [llvm/llvm-project] 8fe044: [RISCV] Fix required features checking with empty ...

[Jim Lin via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 8fe0449ac99087c74f785ddbdd4fbba65b396b3b
      https://github.com/llvm/llvm-project/commit/8fe0449ac99087c74f785ddbdd4fbba65b396b3b
  Author: Jim Lin <jim at andestech.com>
  Date:   2023-07-14 (Fri, 14 Jul 2023)

  Changed paths:
    M clang/lib/Sema/SemaChecking.cpp

  Log Message:
  -----------
  [RISCV] Fix required features checking with empty string

In our downstream, we define some intrinsics that don't require any
extra extension enabled. Such as

TARGET_BUILTIN(__builtin_riscv_xxx, "LiLi", "nc", "")

But `split` function's `KeepEmpty` argument is True. Got the error message

error: builtin requires at least one of the following extensions support to be enabled : ''

when we use our customized intrinsic.

Reviewed By: craig.topper, wangpc

Differential Revision: https://reviews.llvm.org/D154596