[llvm-commits] [llvm] r56105 - /llvm/trunk/lib/Analysis/IPA/GlobalsModRef.cpp
Duncan Sands
baldrick at free.fr
Thu Sep 11 08:43:13 PDT 2008
Author: baldrick
Date: Thu Sep 11 10:43:12 2008
New Revision: 56105
URL: http://llvm.org/viewvc/llvm-project?rev=56105&view=rev
Log:
Intrinsics don't read these kinds of global
variables.
Modified:
llvm/trunk/lib/Analysis/IPA/GlobalsModRef.cpp
Modified: llvm/trunk/lib/Analysis/IPA/GlobalsModRef.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Analysis/IPA/GlobalsModRef.cpp?rev=56105&r1=56104&r2=56105&view=diff
==============================================================================
--- llvm/trunk/lib/Analysis/IPA/GlobalsModRef.cpp (original)
+++ llvm/trunk/lib/Analysis/IPA/GlobalsModRef.cpp Thu Sep 11 10:43:12 2008
@@ -384,11 +384,13 @@
// Can't do better than that!
} else if (F->onlyReadsMemory()) {
FunctionEffect |= Ref;
- // This function might call back into the module and read a global, so
- // mark all globals read somewhere as being read by this function.
- for (std::set<GlobalValue*>::iterator GI = ReadGlobals.begin(),
- E = ReadGlobals.end(); GI != E; ++GI)
- FR.GlobalInfo[*GI] |= Ref;
+ if (!F->isIntrinsic()) {
+ // This function might call back into the module and read a global -
+ // mark all globals read somewhere as being read by this function.
+ for (std::set<GlobalValue*>::iterator GI = ReadGlobals.begin(),
+ E = ReadGlobals.end(); GI != E; ++GI)
+ FR.GlobalInfo[*GI] |= Ref;
+ }
} else {
// Can't say anything useful.
KnowNothing = true;
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