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authorDouglas Gregor <dgregor@apple.com>2011-09-13 23:15:45 +0000
committerDouglas Gregor <dgregor@apple.com>2011-09-13 23:15:45 +0000
commit6e975c4517958bcc11c834336d340797356058db (patch)
treee3b9b3a30636d52d700d5e48004d86f24dc7f70a /include/clang/Frontend/CompilerInvocation.h
parent7ea51d5f0b4a8fc5768d1b4744a556dc756f1b3b (diff)
For modules, use a hash of the compiler version, language options, and
target triple to separate modules built under different conditions. The hash is used to create a subdirectory in the module cache path where other invocations of the compiler (with the same version, language options, etc.) can find the precompiled modules. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@139662 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'include/clang/Frontend/CompilerInvocation.h')
-rw-r--r--include/clang/Frontend/CompilerInvocation.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/clang/Frontend/CompilerInvocation.h b/include/clang/Frontend/CompilerInvocation.h
index 23ddc84304..f09c97ec3f 100644
--- a/include/clang/Frontend/CompilerInvocation.h
+++ b/include/clang/Frontend/CompilerInvocation.h
@@ -123,6 +123,10 @@ public:
static void setLangDefaults(LangOptions &Opts, InputKind IK,
LangStandard::Kind LangStd = LangStandard::lang_unspecified);
+ /// \brief Retrieve a module hash string that is suitable for uniquely
+ /// identifying the conditions under which the module was built.
+ std::string getModuleHash() const;
+
/// @}
/// @name Option Subgroups
/// @{