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Move OptChkCall off LibCallOptimization into StrCpyOpt.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99418 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng 2010-03-24 20:19:04 +00:00
parent 51ecc389a9
commit eb8c6459fc
1 changed files with 6 additions and 7 deletions
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13
lib/Transforms/Scalar/SimplifyLibCalls.cpp
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@ -49,13 +49,10 @@ protected:
Function *Caller;
const TargetData *TD;
LLVMContext* Context;
bool OptChkCall; // True if it's optimizing a *_chk libcall.
public:
LibCallOptimization() : OptChkCall(false) { }
LibCallOptimization() { }
virtual ~LibCallOptimization() {}
void setOptChkCall(bool c) { OptChkCall = c; }
/// CallOptimizer - This pure virtual method is implemented by base classes to
/// do various optimizations. If this returns null then no transformation was
/// performed. If it returns CI, then it transformed the call and CI is to be
@ -353,6 +350,10 @@ struct StrNCmpOpt : public LibCallOptimization {
// 'strcpy' Optimizations
struct StrCpyOpt : public LibCallOptimization {
bool OptChkCall; // True if it's optimizing a __strcpy_chk libcall.
StrCpyOpt(bool c) : OptChkCall(c) {}
virtual Value *CallOptimizer(Function *Callee, CallInst *CI, IRBuilder<> &B) {
// Verify the "strcpy" function prototype.
unsigned NumParams = OptChkCall ? 3 : 2;
@ -1188,8 +1189,7 @@ namespace {
bool Modified; // This is only used by doInitialization.
public:
static char ID; // Pass identification
SimplifyLibCalls() : FunctionPass(&ID) {}
SimplifyLibCalls() : FunctionPass(&ID), StrCpy(false), StrCpyChk(true) {}
void InitOptimizations();
bool runOnFunction(Function &F);
@ -1240,7 +1240,6 @@ void SimplifyLibCalls::InitOptimizations() {
Optimizations["memset"] = &MemSet;
// _chk variants of String and Memory LibCall Optimizations.
StrCpyChk.setOptChkCall(true);
Optimizations["__strcpy_chk"] = &StrCpyChk;
// Math Library Optimizations