[all-commits] [llvm/llvm-project] 620d2b: [clang] Allow using BareMetal toolchain with LLVM_...

[Michael Platings via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 620d2bfdadeb7f4936775422a0e965e7fcdcd204
      https://github.com/llvm/llvm-project/commit/620d2bfdadeb7f4936775422a0e965e7fcdcd204
  Author: Michael Platings <michael.platings at arm.com>
  Date:   2022-12-12 (Mon, 12 Dec 2022)

  Changed paths:
    M clang/lib/Driver/ToolChains/BareMetal.cpp
    M clang/test/Driver/baremetal.cpp

  Log Message:
  -----------
  [clang] Allow using BareMetal toolchain with LLVM_ENABLE_PER_TARGET_RUNTIME_DIR compiler-rt

If you build compiler-rt with LLVM_ENABLE_PER_TARGET_RUNTIME_DIR then
the library filename will be "libclang_rt.builtins.a" instead of
"libclang_rt.builtins-<ARCH>.a"

The ToolChain::getCompilerRT method uses the "libclang_rt.builtins.a"
name if it can find the file in the library directories. If it can't
then it falls back to using "libclang_rt.builtins-<ARCH>.a". This
change adds the library directory such that "libclang_rt.builtins.a"
can be found.

Differential Revision: https://reviews.llvm.org/D139822