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[FunctionAttrs] Collect utility functions as static helpers rather than 

methods. They don't need anything from the class anyways.

Also, collect the declarations into the private section of the pass.

llvm-svn: 247521
This commit is contained in:
Chandler Carruth 2015-09-13 07:50:43 +00:00
parent a632fb9e86
commit d02452015c
1 changed files with 52 additions and 57 deletions
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109
llvm/lib/Transforms/IPO/FunctionAttrs.cpp
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@ -60,63 +60,6 @@ struct FunctionAttrs : public CallGraphSCCPass {
bool runOnSCC(CallGraphSCC &SCC) override;
bool AddReadAttrs(const CallGraphSCC &SCC);
bool AddArgumentAttrs(const CallGraphSCC &SCC);
bool IsFunctionMallocLike(Function *F, SmallPtrSet<Function *, 8> &) const;
bool AddNoAliasAttrs(const CallGraphSCC &SCC);
bool ReturnsNonNull(Function *F, SmallPtrSet<Function *, 8> &,
bool &Speculative) const;
bool AddNonNullAttrs(const CallGraphSCC &SCC);
// Utility methods used by inferPrototypeAttributes to add attributes
// and maintain annotation statistics.
void setDoesNotAccessMemory(Function &F) {
if (!F.doesNotAccessMemory()) {
F.setDoesNotAccessMemory();
++NumAnnotated;
}
}
void setOnlyReadsMemory(Function &F) {
if (!F.onlyReadsMemory()) {
F.setOnlyReadsMemory();
++NumAnnotated;
}
}
void setDoesNotThrow(Function &F) {
if (!F.doesNotThrow()) {
F.setDoesNotThrow();
++NumAnnotated;
}
}
void setDoesNotCapture(Function &F, unsigned n) {
if (!F.doesNotCapture(n)) {
F.setDoesNotCapture(n);
++NumAnnotated;
}
}
void setOnlyReadsMemory(Function &F, unsigned n) {
if (!F.onlyReadsMemory(n)) {
F.setOnlyReadsMemory(n);
++NumAnnotated;
}
}
void setDoesNotAlias(Function &F, unsigned n) {
if (!F.doesNotAlias(n)) {
F.setDoesNotAlias(n);
++NumAnnotated;
}
}
bool inferPrototypeAttributes(Function &F);
bool annotateLibraryCalls(const CallGraphSCC &SCC);
void getAnalysisUsage(AnalysisUsage &AU) const override {
AU.setPreservesCFG();
AU.addRequired<AssumptionCacheTracker>();
@ -126,6 +69,16 @@ struct FunctionAttrs : public CallGraphSCCPass {
private:
TargetLibraryInfo *TLI;
bool AddReadAttrs(const CallGraphSCC &SCC);
bool AddArgumentAttrs(const CallGraphSCC &SCC);
bool IsFunctionMallocLike(Function *F, SmallPtrSet<Function *, 8> &) const;
bool AddNoAliasAttrs(const CallGraphSCC &SCC);
bool ReturnsNonNull(Function *F, SmallPtrSet<Function *, 8> &,
bool &Speculative) const;
bool AddNonNullAttrs(const CallGraphSCC &SCC);
bool inferPrototypeAttributes(Function &F);
bool annotateLibraryCalls(const CallGraphSCC &SCC);
};
}
@ -984,6 +937,48 @@ bool FunctionAttrs::AddNonNullAttrs(const CallGraphSCC &SCC) {
return MadeChange;
}
static void setDoesNotAccessMemory(Function &F) {
if (!F.doesNotAccessMemory()) {
F.setDoesNotAccessMemory();
++NumAnnotated;
}
}
static void setOnlyReadsMemory(Function &F) {
if (!F.onlyReadsMemory()) {
F.setOnlyReadsMemory();
++NumAnnotated;
}
}
static void setDoesNotThrow(Function &F) {
if (!F.doesNotThrow()) {
F.setDoesNotThrow();
++NumAnnotated;
}
}
static void setDoesNotCapture(Function &F, unsigned n) {
if (!F.doesNotCapture(n)) {
F.setDoesNotCapture(n);
++NumAnnotated;
}
}
static void setOnlyReadsMemory(Function &F, unsigned n) {
if (!F.onlyReadsMemory(n)) {
F.setOnlyReadsMemory(n);
++NumAnnotated;
}
}
static void setDoesNotAlias(Function &F, unsigned n) {
if (!F.doesNotAlias(n)) {
F.setDoesNotAlias(n);
++NumAnnotated;
}
}
/// Analyze the name and prototype of the given function and set any applicable
/// attributes.
///