[PATCH] D115038: [runtimes][VE] Change to compile crtbegin/end before compiler-rt

[Kazushi Marukawa via Phabricator via llvm-commits]

kaz7 added a comment.

This patch add mechanism to compile crtbegin/end before other libraries which is similar to a mechanism to compile builtins before compile-rt.

The crtbegin/end files are not available for VE freely.  Those are distributed as a part of propariatary libraries.  Therefore, we need to compile crtbegin/end before other libraries.  This patch modifies building mechanism to compile crtbegin/end (and builtins) without other libraries.  Then, compile compiler-rt again in the middle of compilation.  This patch is useful for not only for SX-Aurora VE, but also other architectures which has no crtbegin/end freely.

However, I'm not sure what kind of mechanism is good for other architectures.  For example, I can define LLVM_BUILTIN_CRTBEGIN_TARGETS variable to enable this feature.  However, I'm not sure what is the best.  So, this time, I send this patch for only crtbegin/end before other libraies for only VE at the moment.  I appreciate any comments and requests for changes.  Thanks!!


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D115038/new/

https://reviews.llvm.org/D115038