[Analysis] Fix -Wunused-function in ConstantFolding.cpp (NFC)

DamonFool · AlexisPerry · commit 786f080f435b · 2024-06-27T14:44:18.000-06:00
/llvm-project/llvm/lib/Analysis/ConstantFolding.cpp:1747:11:
error: unused function 'GetConstantFoldFPValue128' [-Werror,-Wunused-function]
Constant *GetConstantFoldFPValue128(float128 V, Type *Ty) {
          ^
1 error generated.
diff --git a/llvm/lib/Analysis/ConstantFolding.cpp b/llvm/lib/Analysis/ConstantFolding.cpp
@@ -1743,7 +1743,7 @@ Constant *GetConstantFoldFPValue(double V, Type *Ty) {
   llvm_unreachable("Can only constant fold half/float/double");
 }
 
-#if defined(HAS_IEE754_FLOAT128)
+#if defined(HAS_IEE754_FLOAT128) && defined(HAS_LOGF128)
 Constant *GetConstantFoldFPValue128(float128 V, Type *Ty) {
   if (Ty->isFP128Ty())
     return ConstantFP::get(Ty, V);

Original file line number	Diff line number	Diff line change
`@@ -1743,7 +1743,7 @@ Constant GetConstantFoldFPValue(double V, Type Ty) {`
`1743`	`1743`	`llvm_unreachable("Can only constant fold half/float/double");`
`1744`	`1744`	`}`
`1745`	`1745`
`1746`		`-#if defined(HAS_IEE754_FLOAT128)`
	`1746`	`+#if defined(HAS_IEE754_FLOAT128) && defined(HAS_LOGF128)`
`1747`	`1747`	`Constant GetConstantFoldFPValue128(float128 V, Type Ty) {`
`1748`	`1748`	`if (Ty->isFP128Ty())`
`1749`	`1749`	`return ConstantFP::get(Ty, V);`