Bug ID: 36446
           Summary: Hidden /d1PP flag is ignored by clang-cl
           Product: clang
           Version: trunk
          Hardware: PC
                OS: Windows NT
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Driver

The hidden /d1PP flag is required by some buildsystems such as Fastbuild

The purpose of this flag is to emit #defines in the preprocessed output, when
using /E. In the case of Fastbuild, this flag is needed to properly invalidate
Fastbuild's cache, if a PCH file changes only with different #defines.

The function TestPrecompiledHeaders::CacheUniqueness() in
illustrates the issue.

/d1PP shall translate to -dD (OPT_dD)

You are receiving this mail because:
You are on the CC list for the bug.
llvm-bugs mailing list

Reply via email to