6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-07-24 06:25:18 +00:00
Code Issues Projects Releases Wiki Activity

Make the AST interface a bit richer by returning whether an insertion caused

Browse Source 
an insertion or not (because the pointer set already existed).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15064 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2004-07-21 05:18:04 +00:00
parent e8a7e593e6
commit 12c1155403
2 changed files with 49 additions and 29 deletions
Download Patch File Download Diff File Expand all files Collapse all files

27
include/llvm/Analysis/AliasSetTracker.h
View File

@@ -255,12 +255,15 @@ public:
/// 3. If the instruction aliases multiple sets, merge the sets, and add
/// the instruction to the result.
///
void add(LoadInst *LI);
void add(StoreInst *SI);
void add(CallSite CS); // Call/Invoke instructions
void add(CallInst *CI) { add(CallSite(CI)); }
void add(InvokeInst *II) { add(CallSite(II)); }
void add(Instruction *I); // Dispatch to one of the other add methods...
/// These methods return true if inserting the instruction resulted in the
/// addition of a new alias set (i.e., the pointer did not alias anything).
///
bool add(LoadInst *LI);
bool add(StoreInst *SI);
bool add(CallSite CS); // Call/Invoke instructions
bool add(CallInst *CI) { return add(CallSite(CI)); }
bool add(InvokeInst *II) { return add(CallSite(II)); }
bool add(Instruction *I); // Dispatch to one of the other add methods...
void add(BasicBlock &BB); // Add all instructions in basic block
void add(const AliasSetTracker &AST); // Add alias relations from another AST
@@ -275,8 +278,10 @@ public:
const ilist<AliasSet> &getAliasSets() const { return AliasSets; }
/// getAliasSetForPointer - Return the alias set that the specified pointer
/// lives in...
AliasSet &getAliasSetForPointer(Value *P, unsigned Size);
/// lives in. If the New argument is non-null, this method sets the value to
/// true if a new alias set is created to contain the pointer (because the
/// pointer didn't alias anything).
AliasSet &getAliasSetForPointer(Value *P, unsigned Size, bool *New = 0);
/// getAliasAnalysis - Return the underlying alias analysis object used by
/// this tracker.
@@ -305,8 +310,10 @@ private:
AliasSet::PointerRec())).first;
}
AliasSet &addPointer(Value *P, unsigned Size, AliasSet::AccessType E) {
AliasSet &AS = getAliasSetForPointer(P, Size);
AliasSet &addPointer(Value *P, unsigned Size, AliasSet::AccessType E,
bool &NewSet) {
NewSet = false;
AliasSet &AS = getAliasSetForPointer(P, Size, &NewSet);
AS.AccessTy |= E;
return AS;
}