[SimplifyLibCalls] Remove variables that are not used. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251852 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Transforms/Utils/SimplifyLibCalls.cpp b/lib/Transforms/Utils/SimplifyLibCalls.cpp
index 0713ed1e9c73260da147c7c8cde283dcde0e36b5..9fabf5de7f4e63d154d9b92c000dc1a19d4057a9 100644 (file)
--- a/lib/Transforms/Utils/SimplifyLibCalls.cpp
+++ b/lib/Transforms/Utils/SimplifyLibCalls.cpp
@@ -485,9 +485,6 @@ Value *LibCallSimplifier::optimizeStrCpy(CallInst *CI, IRBuilder<> &B) {
 
 Value *LibCallSimplifier::optimizeStpCpy(CallInst *CI, IRBuilder<> &B) {
   Function *Callee = CI->getCalledFunction();
-  // Verify the "stpcpy" function prototype.
-  FunctionType *FT = Callee->getFunctionType();
-
   if (!checkStringCopyLibFuncSignature(Callee, LibFunc::stpcpy))
     return nullptr;
 
@@ -502,7 +499,7 @@ Value *LibCallSimplifier::optimizeStpCpy(CallInst *CI, IRBuilder<> &B) {
   if (Len == 0)
     return nullptr;
 
-  Type *PT = FT->getParamType(0);
+  Type *PT = Callee->getFunctionType()->getParamType(0);
   Value *LenV = ConstantInt::get(DL.getIntPtrType(PT), Len);
   Value *DstEnd =
       B.CreateGEP(B.getInt8Ty(), Dst, ConstantInt::get(DL.getIntPtrType(PT), Len - 1));
@@ -515,8 +512,6 @@ Value *LibCallSimplifier::optimizeStpCpy(CallInst *CI, IRBuilder<> &B) {
 
 Value *LibCallSimplifier::optimizeStrNCpy(CallInst *CI, IRBuilder<> &B) {
   Function *Callee = CI->getCalledFunction();
-  FunctionType *FT = Callee->getFunctionType();
-
   if (!checkStringCopyLibFuncSignature(Callee, LibFunc::strncpy))
     return nullptr;
 
@@ -549,7 +544,7 @@ Value *LibCallSimplifier::optimizeStrNCpy(CallInst *CI, IRBuilder<> &B) {
   if (Len > SrcLen + 1)
     return nullptr;
 
-  Type *PT = FT->getParamType(0);
+  Type *PT = Callee->getFunctionType()->getParamType(0);
   // strncpy(x, s, c) -> memcpy(x, s, c, 1) [s and c are constant]
   B.CreateMemCpy(Dst, Src, ConstantInt::get(DL.getIntPtrType(PT), Len), 1);