[all-commits] [llvm/llvm-project] 7ce0f5: [clang][modules] Validate input file format for Ge...

[Naveen Seth Hanig via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 7ce0f5a9cc37345fee801736bded83081b61571b
      https://github.com/llvm/llvm-project/commit/7ce0f5a9cc37345fee801736bded83081b61571b
  Author: Naveen Seth Hanig <naveen.hanig at outlook.com>
  Date:   2025-04-29 (Tue, 29 Apr 2025)

  Changed paths:
    M clang/include/clang/Basic/DiagnosticFrontendKinds.td
    M clang/include/clang/Frontend/FrontendActions.h
    M clang/lib/Frontend/FrontendActions.cpp
    A clang/test/Modules/emit-module-interface-pcm-input.cpp

  Log Message:
  -----------
  [clang][modules] Validate input file format for GenerateModuleInterfaceAction (#132692) (#137711)

Fixes #132692.

`clang -cc1` crashes when generating a module interface with
`emit-module-interface` or `emit-reduced-module-interface` using an
input file which is already a precompiled module (`.pcm`) file.
This commit adds validation for the input file format and Clang will now
emit an error message instead of crashing.



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