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[SimplifyLibCalls] Factor out other common code. 

llvm-svn: 251754
This commit is contained in:
Davide Italiano 2015-10-31 23:17:45 +00:00
parent 266b4fe8ad
commit 396f3eeafb
1 changed files with 10 additions and 21 deletions
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31
llvm/lib/Transforms/Utils/SimplifyLibCalls.cpp
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@ -1486,15 +1486,16 @@ void insertSinCosCall(IRBuilder<> &B, Function *OrigCallee, Value *Arg,
// Integer Library Call Optimizations
//===----------------------------------------------------------------------===//
static bool checkIntUnaryReturnAndParam(Function *Callee) {
FunctionType *FT = Callee->getFunctionType();
return !(FT->getNumParams() != 1 || !FT->getReturnType()->isIntegerTy(32) ||
!FT->getParamType(0)->isIntegerTy());
}
Value *LibCallSimplifier::optimizeFFS(CallInst *CI, IRBuilder<> &B) {
Function *Callee = CI->getCalledFunction();
FunctionType *FT = Callee->getFunctionType();
// Just make sure this has 2 arguments of the same FP type, which match the
// result type.
if (FT->getNumParams() != 1 || !FT->getReturnType()->isIntegerTy(32) ||
!FT->getParamType(0)->isIntegerTy())
if (!checkIntUnaryReturnAndParam(Callee))
return nullptr;
Value *Op = CI->getArgOperand(0);
// Constant fold.
@ -1534,11 +1535,7 @@ Value *LibCallSimplifier::optimizeAbs(CallInst *CI, IRBuilder<> &B) {
}
Value *LibCallSimplifier::optimizeIsDigit(CallInst *CI, IRBuilder<> &B) {
Function *Callee = CI->getCalledFunction();
FunctionType *FT = Callee->getFunctionType();
// We require integer(i32)
if (FT->getNumParams() != 1 || !FT->getReturnType()->isIntegerTy() ||
!FT->getParamType(0)->isIntegerTy(32))
if (!checkIntUnaryReturnAndParam(CI->getCalledFunction()))
return nullptr;
// isdigit(c) -> (c-'0') <u 10
@ -1549,11 +1546,7 @@ Value *LibCallSimplifier::optimizeIsDigit(CallInst *CI, IRBuilder<> &B) {
}
Value *LibCallSimplifier::optimizeIsAscii(CallInst *CI, IRBuilder<> &B) {
Function *Callee = CI->getCalledFunction();
FunctionType *FT = Callee->getFunctionType();
// We require integer(i32)
if (FT->getNumParams() != 1 || !FT->getReturnType()->isIntegerTy() ||
!FT->getParamType(0)->isIntegerTy(32))
if (!checkIntUnaryReturnAndParam(CI->getCalledFunction()))
return nullptr;
// isascii(c) -> c <u 128
@ -1563,11 +1556,7 @@ Value *LibCallSimplifier::optimizeIsAscii(CallInst *CI, IRBuilder<> &B) {
}
Value *LibCallSimplifier::optimizeToAscii(CallInst *CI, IRBuilder<> &B) {
Function *Callee = CI->getCalledFunction();
FunctionType *FT = Callee->getFunctionType();
// We require i32(i32)
if (FT->getNumParams() != 1 || FT->getReturnType() != FT->getParamType(0) ||
!FT->getParamType(0)->isIntegerTy(32))
if (!checkIntUnaryReturnAndParam(CI->getCalledFunction()))
return nullptr;
// toascii(c) -> c & 0x7f