6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-08-15 06:29:05 +00:00
Code Issues Projects Releases Wiki Activity

Use a real union for IdentifyingPassPtr.

Browse Source 
This avoids a nasty const correctness issue (AnalysisIDs are const, Pass* isn't).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179213 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Benjamin Kramer
2013-04-10 20:50:44 +00:00
parent bccd635fba
commit 8f5836510a
1 changed files with 9 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
include/llvm/CodeGen/Passes.h
View File

@@ -50,24 +50,26 @@ class PassConfigImpl;
/// ///
/// AnalysisID is sadly char*, so PointerIntPair won't work. /// AnalysisID is sadly char*, so PointerIntPair won't work.
class IdentifyingPassPtr { class IdentifyingPassPtr {
void *P; union {
AnalysisID ID;
Pass *P;
};
bool IsInstance; bool IsInstance;
public: public:
IdentifyingPassPtr(): P(0), IsInstance(false) {} IdentifyingPassPtr() : P(0), IsInstance(false) {}
IdentifyingPassPtr(AnalysisID IDPtr): P((void*)IDPtr), IsInstance(false) {} IdentifyingPassPtr(AnalysisID IDPtr) : ID(IDPtr), IsInstance(false) {}
IdentifyingPassPtr(Pass *InstancePtr) IdentifyingPassPtr(Pass *InstancePtr) : P(InstancePtr), IsInstance(true) {}
: P((void*)InstancePtr), IsInstance(true) {}
bool isValid() const { return P; } bool isValid() const { return P; }
bool isInstance() const { return IsInstance; } bool isInstance() const { return IsInstance; }
AnalysisID getID() const { AnalysisID getID() const {
assert(!IsInstance && "Not a Pass ID"); assert(!IsInstance && "Not a Pass ID");
return (AnalysisID)P; return ID;
} }
Pass *getInstance() const { Pass *getInstance() const {
assert(IsInstance && "Not a Pass Instance"); assert(IsInstance && "Not a Pass Instance");
return (Pass *)P; return P;
} }
}; };