[all-commits] [llvm/llvm-project] c6f870: [clang][deps] Disable global module index

[Jan Svoboda via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: c6f8704053ba364cf8cc9a0a966617efeda079f7
      https://github.com/llvm/llvm-project/commit/c6f8704053ba364cf8cc9a0a966617efeda079f7
  Author: Jan Svoboda <jan_svoboda at apple.com>
  Date:   2022-02-15 (Tue, 15 Feb 2022)

  Changed paths:
    M clang/lib/Tooling/DependencyScanning/DependencyScanningWorker.cpp

  Log Message:
  -----------
  [clang][deps] Disable global module index

While scanning dependencies of a TU that depends on a PCH, the scanner basically performs mixed implicit/explicit modular compilation. (Explicit modules come from the PCH.) This seems to trip up the global module index.

This patch disables global module index in the dependency scanner.

Reviewed By: Bigcheese

Differential Revision: https://reviews.llvm.org/D118890