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/EP or /P
This replicates 'cl.exe' behavior and allows for both preprocessor output and
dependency information to be extraced with a single compiler invocation.
This is especially useful for compiler caching with tools like Mozilla's sccache.
See: https://github.com/mozilla/sccache/issues/246
Patch By: fxb
Differential Revision: https://reviews.llvm.org/D46394
llvm-svn: 331533
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-H in gcc mode doesn't print -include headers, but they are included in
depfiles written by MMD and friends. Since /showIncludes is what's used instead
of depfiles, printing /FI there seems important (and matches cl.exe).
Instead of giving HeaderIncludeGen more options, just switch on ShowAllHeaders
in clang-cl mode and let clang::InitializePreprocessor() not put -include flags
in the <command line> block. This changes the behavior of -E slightly, and it
removes the <command line> flag from the output triggered by setting the
obscure CC_PRINT_HEADERS=1 env var to true while running clang. Both of these
seem ok to change.
http://reviews.llvm.org/D18401
llvm-svn: 264174
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Summary:
Do not include default sanitizer blacklists into -M/-MM/-MD/-MMD output.
Introduce a frontend option -fdepfile-entry, and only insert them
for the user-defined sanitizer blacklists. In frontend, grab ExtraDeps
from -fdepfile-entry, instead of -fsanitize-blacklist.
Reviewers: rsmith, pcc
Subscribers: cfe-commits
Differential Revision: http://reviews.llvm.org/D12544
llvm-svn: 246700
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Summary:
Clang sanitizers, such as AddressSanitizer, ThreadSanitizer, MemorySanitizer,
Control Flow Integrity and others, use blacklists to specify which types / functions
should not be instrumented to avoid false positives or suppress known failures.
This change adds the blacklist filenames to the list of dependencies of the rules,
generated with -M/-MM/-MD/-MMD. This lets CMake/Ninja recognize that certain
C/C++/ObjC files need to be recompiled (if a blacklist is updated).
Reviewers: pcc
Subscribers: rsmith, honggyu.kim, pcc, cfe-commits
Differential Revision: http://reviews.llvm.org/D11968
llvm-svn: 244867
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Modules and Tooling tests in particular tend to want to change the cwd,
so we were missing test coverage in this area on Windows. It should now
be easier to write such portable tests.
llvm-svn: 231029
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llvm-svn: 215434
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According to the gcc docs, -include uses the current working directory
for the lookup instead of the main source file.
This patch gets rid of NormalizeIncludePath (which relied on an
implementation detail of FileManager / FileEntry for the include path
logic to work), and instead hands the correct lookup information down to
LookupFile.
This will allow us to change the FileEntry's behavior regarding its Name
caching.
llvm-svn: 215433
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llvm-svn: 212383
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This option prints information about #included files to stderr. Clang could
already do it, this patch just teaches the existing code about the /showIncludes
style and adds the flag.
Differential Revision: http://llvm-reviews.chandlerc.com/D1333
llvm-svn: 188037
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- I didn't implement the GCC "multiple include guard" detection parts, because
it doesn't seem useful or obvious.
llvm-svn: 111983
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