[llvm] r251728 - [FunctionAttrs] Inline the prototype attribute inference to an existing
Chandler Carruth via llvm-commits
llvm-commits at lists.llvm.org
Fri Oct 30 17:28:38 PDT 2015
Author: chandlerc
Date: Fri Oct 30 19:28:37 2015
New Revision: 251728
URL: http://llvm.org/viewvc/llvm-project?rev=251728&view=rev
Log:
[FunctionAttrs] Inline the prototype attribute inference to an existing
loop over the SCC.
The separate function wasn't really adding much, NFC.
Modified:
llvm/trunk/lib/Transforms/IPO/FunctionAttrs.cpp
Modified: llvm/trunk/lib/Transforms/IPO/FunctionAttrs.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/IPO/FunctionAttrs.cpp?rev=251728&r1=251727&r2=251728&view=diff
==============================================================================
--- llvm/trunk/lib/Transforms/IPO/FunctionAttrs.cpp (original)
+++ llvm/trunk/lib/Transforms/IPO/FunctionAttrs.cpp Fri Oct 30 19:28:37 2015
@@ -73,8 +73,6 @@ struct FunctionAttrs : public CallGraphS
private:
TargetLibraryInfo *TLI;
-
- bool annotateLibraryCalls(const CallGraphSCC &SCC);
};
}
@@ -1750,27 +1748,9 @@ static bool inferPrototypeAttributes(Fun
return true;
}
-/// Adds attributes to well-known standard library call declarations.
-bool FunctionAttrs::annotateLibraryCalls(const CallGraphSCC &SCC) {
- bool MadeChange = false;
-
- // Check each function in turn annotating well-known library function
- // declarations with attributes.
- for (CallGraphSCC::iterator I = SCC.begin(), E = SCC.end(); I != E; ++I) {
- Function *F = (*I)->getFunction();
-
- if (F && F->isDeclaration())
- MadeChange |= inferPrototypeAttributes(*F, *TLI);
- }
-
- return MadeChange;
-}
-
bool FunctionAttrs::runOnSCC(CallGraphSCC &SCC) {
TLI = &getAnalysis<TargetLibraryInfoWrapperPass>().getTLI();
-
- // Annotate declarations for which we have special knowledge.
- bool Changed = annotateLibraryCalls(SCC);
+ bool Changed = false;
// We compute dedicated AA results for each function in the SCC as needed. We
// use a lambda referencing external objects so that they live long enough to
@@ -1798,6 +1778,11 @@ bool FunctionAttrs::runOnSCC(CallGraphSC
continue;
}
+ // When initially processing functions, also infer their prototype
+ // attributes if they are declarations.
+ if (F->isDeclaration())
+ Changed |= inferPrototypeAttributes(*F, *TLI);
+
SCCNodes.insert(F);
}
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