[all-commits] [llvm/llvm-project] 2fe66b: [Compiler-rt] Emit error if builtins library canno...

[Yi Kong via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 2fe66bdb2e5fb556e15d4a07158e89ec007c587b
      https://github.com/llvm/llvm-project/commit/2fe66bdb2e5fb556e15d4a07158e89ec007c587b
  Author: Yi Kong <yikong at google.com>
  Date:   2020-05-17 (Sun, 17 May 2020)

  Changed paths:
    M compiler-rt/cmake/Modules/AddCompilerRT.cmake

  Log Message:
  -----------
  [Compiler-rt] Emit error if builtins library cannot be found

Since setting COMPILER_RT_USE_BUILTINS_LIBRARY would remove -z,defs
flag, missing builtins library would continue to build unnoticed.
Explicitly emit an error in such case.

Differential Revision: https://reviews.llvm.org/D79470