diff options
| -rw-r--r-- | llvm/lib/Transforms/Utils/SimplifyLibCalls.cpp | 16 |
1 files changed, 6 insertions, 10 deletions
diff --git a/llvm/lib/Transforms/Utils/SimplifyLibCalls.cpp b/llvm/lib/Transforms/Utils/SimplifyLibCalls.cpp index b8a18a10f29..3920736a8d5 100644 --- a/llvm/lib/Transforms/Utils/SimplifyLibCalls.cpp +++ b/llvm/lib/Transforms/Utils/SimplifyLibCalls.cpp @@ -2387,18 +2387,14 @@ Value *LibCallSimplifier::optimizeFRead(CallInst *CI, IRBuilder<> &B) { } Value *LibCallSimplifier::optimizePuts(CallInst *CI, IRBuilder<> &B) { - // Check for a constant string. - StringRef Str; - if (!getConstantStringInfo(CI->getArgOperand(0), Str)) + if (!CI->use_empty()) return nullptr; - if (Str.empty() && CI->use_empty()) { - // puts("") -> putchar('\n') - Value *Res = emitPutChar(B.getInt32('\n'), B, TLI); - if (CI->use_empty() || !Res) - return Res; - return B.CreateIntCast(Res, CI->getType(), true); - } + // Check for a constant string. + // puts("") -> putchar('\n') + StringRef Str; + if (getConstantStringInfo(CI->getArgOperand(0), Str) && Str.empty()) + return emitPutChar(B.getInt32('\n'), B, TLI); return nullptr; } |
