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author | Rafael Espindola <rafael.espindola@gmail.com> | 2013-10-25 21:29:52 +0000 |
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committer | Rafael Espindola <rafael.espindola@gmail.com> | 2013-10-25 21:29:52 +0000 |
commit | 0f978ea45945bf3b8f2ce20f46d78dc840894623 (patch) | |
tree | f4530b935c5be83b41b669610d72aab832e45115 /lib | |
parent | 006183a9364660daba786d352df720e079412d60 (diff) | |
download | llvm-0f978ea45945bf3b8f2ce20f46d78dc840894623.tar.gz llvm-0f978ea45945bf3b8f2ce20f46d78dc840894623.tar.bz2 llvm-0f978ea45945bf3b8f2ce20f46d78dc840894623.tar.xz |
Handle calls and invokes in GlobalStatus.
This patch teaches GlobalStatus to analyze a call that uses the global value as
a callee, not as an argument.
With this change internalize call handle the common use of linkonce_odr
functions. This reduces the number of linkonce_odr functions in a LTO build of
clang (checked with the emit-llvm gold plugin option) from 1730 to 60.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193436 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib')
-rw-r--r-- | lib/Transforms/Utils/GlobalStatus.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/Transforms/Utils/GlobalStatus.cpp b/lib/Transforms/Utils/GlobalStatus.cpp index 8fb79aa87b..5f0a563cee 100644 --- a/lib/Transforms/Utils/GlobalStatus.cpp +++ b/lib/Transforms/Utils/GlobalStatus.cpp @@ -11,6 +11,7 @@ #include "llvm/IR/BasicBlock.h" #include "llvm/IR/GlobalVariable.h" #include "llvm/IR/IntrinsicInst.h" +#include "llvm/Support/CallSite.h" #include "llvm/Transforms/Utils/GlobalStatus.h" using namespace llvm; @@ -148,6 +149,10 @@ static bool analyzeGlobalAux(const Value *V, GlobalStatus &GS, if (MSI->isVolatile()) return true; GS.StoredType = GlobalStatus::Stored; + } else if (ImmutableCallSite C = I) { + if (!C.isCallee(UI)) + return true; + GS.IsLoaded = true; } else { return true; // Any other non-load instruction might take address! } |