blob: 981a8ddc2289a84ea0ac9c92fd822a0d052b9eff (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
|
//=- CFLAliasAnalysisUtils.h - Utilities for CFL Alias Analysis ----*- C++-*-=//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// \file
// These are the utilities/helpers used by the CFL Alias Analyses available in
// tree, i.e. Steensgaard's and Andersens'.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_ANALYSIS_CFLALIASANALYSISUTILS_H
#define LLVM_ANALYSIS_CFLALIASANALYSISUTILS_H
#include "llvm/IR/Function.h"
#include "llvm/IR/ValueHandle.h"
namespace llvm {
namespace cflaa {
template <typename AAResult> struct FunctionHandle final : public CallbackVH {
FunctionHandle(Function *Fn, AAResult *Result)
: CallbackVH(Fn), Result(Result) {
assert(Fn != nullptr);
assert(Result != nullptr);
}
void deleted() override { removeSelfFromCache(); }
void allUsesReplacedWith(Value *) override { removeSelfFromCache(); }
private:
AAResult *Result;
void removeSelfFromCache() {
assert(Result != nullptr);
auto *Val = getValPtr();
Result->evict(cast<Function>(Val));
setValPtr(nullptr);
}
};
static inline const Function *parentFunctionOfValue(const Value *Val) {
if (auto *Inst = dyn_cast<Instruction>(Val)) {
auto *Bb = Inst->getParent();
return Bb->getParent();
}
if (auto *Arg = dyn_cast<Argument>(Val))
return Arg->getParent();
return nullptr;
} // namespace cflaa
} // namespace llvm
}
#endif // LLVM_ANALYSIS_CFLALIASANALYSISUTILS_H
|
