[Transforms] Rename hasUnaryFloatFn() and getUnaryFloatFn() (NFC)

Rename `hasUnaryFloatFn()` to `hasFloatFn()` and `getUnaryFloatFn()` to `getFloatFnName()`.

llvm-svn: 368449
diff --git a/llvm/lib/Transforms/Utils/SimplifyLibCalls.cpp b/llvm/lib/Transforms/Utils/SimplifyLibCalls.cpp
index 2d218d6..f64d9b4 100644
--- a/llvm/lib/Transforms/Utils/SimplifyLibCalls.cpp
+++ b/llvm/lib/Transforms/Utils/SimplifyLibCalls.cpp
@@ -1319,7 +1319,7 @@
     return nullptr;
 
   // pow(2.0 ** n, x) -> exp2(n * x)
-  if (hasUnaryFloatFn(TLI, Ty, LibFunc_exp2, LibFunc_exp2f, LibFunc_exp2l)) {
+  if (hasFloatFn(TLI, Ty, LibFunc_exp2, LibFunc_exp2f, LibFunc_exp2l)) {
     APFloat BaseR = APFloat(1.0);
     BaseR.convert(BaseF->getSemantics(), APFloat::rmTowardZero, &Ignored);
     BaseR = BaseR / *BaseF;
@@ -1344,7 +1344,7 @@
   // pow(10.0, x) -> exp10(x)
   // TODO: There is no exp10() intrinsic yet, but some day there shall be one.
   if (match(Base, m_SpecificFP(10.0)) &&
-      hasUnaryFloatFn(TLI, Ty, LibFunc_exp10, LibFunc_exp10f, LibFunc_exp10l))
+      hasFloatFn(TLI, Ty, LibFunc_exp10, LibFunc_exp10f, LibFunc_exp10l))
     return emitUnaryFloatFnCall(Expo, TLI, LibFunc_exp10, LibFunc_exp10f,
                                 LibFunc_exp10l, B, Attrs);
 
@@ -1359,17 +1359,15 @@
 
     if (Log) {
       Value *FMul = B.CreateFMul(Log, Expo, "mul");
-      if (Pow->doesNotAccessMemory()) {
+      if (Pow->doesNotAccessMemory())
         return B.CreateCall(Intrinsic::getDeclaration(Mod, Intrinsic::exp2, Ty),
                             FMul, "exp2");
-      } else {
-        if (hasUnaryFloatFn(TLI, Ty, LibFunc_exp2, LibFunc_exp2f,
-                            LibFunc_exp2l))
-          return emitUnaryFloatFnCall(FMul, TLI, LibFunc_exp2, LibFunc_exp2f,
-                                      LibFunc_exp2l, B, Attrs);
-      }
+      else if (hasFloatFn(TLI, Ty, LibFunc_exp2, LibFunc_exp2f, LibFunc_exp2l))
+        return emitUnaryFloatFnCall(FMul, TLI, LibFunc_exp2, LibFunc_exp2f,
+                                    LibFunc_exp2l, B, Attrs);
     }
   }
+
   return nullptr;
 }
 
@@ -1384,8 +1382,7 @@
   }
 
   // Otherwise, use the libcall for sqrt().
-  if (hasUnaryFloatFn(TLI, V->getType(), LibFunc_sqrt, LibFunc_sqrtf,
-                      LibFunc_sqrtl))
+  if (hasFloatFn(TLI, V->getType(), LibFunc_sqrt, LibFunc_sqrtf, LibFunc_sqrtl))
     // TODO: We also should check that the target can in fact lower the sqrt()
     // libcall. We currently have no way to ask this question, so we ask if
     // the target has a sqrt() libcall, which is not exactly the same.
@@ -1452,7 +1449,7 @@
   bool Ignored;
 
   // Bail out if simplifying libcalls to pow() is disabled.
-  if (!hasUnaryFloatFn(TLI, Ty, LibFunc_pow, LibFunc_powf, LibFunc_powl))
+  if (!hasFloatFn(TLI, Ty, LibFunc_pow, LibFunc_powf, LibFunc_powl))
     return nullptr;
 
   // Propagate the math semantics from the call to any created instructions.