Simplify usage of setFPAttrs.

In some cases using the return value of setFPAttrs simplifies the code.
In other cases it complicates the code with ugly casts, so stop doing
it. NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@375409 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/include/llvm/IR/IRBuilder.h b/include/llvm/IR/IRBuilder.h
index 25febbfa1e23f4a2f7d86196c943bf3cbdf332b8..d1ddb75cde9b835bc3d469271ce96ffee9b22e06 100644 (file)
--- a/include/llvm/IR/IRBuilder.h
+++ b/include/llvm/IR/IRBuilder.h
@@ -1461,7 +1461,7 @@ public:
     if (Value *V = foldConstant(Opc, LHS, RHS, Name)) return V;
     Instruction *BinOp = BinaryOperator::Create(Opc, LHS, RHS);
     if (isa<FPMathOperator>(BinOp))
-      BinOp = setFPAttrs(BinOp, FPMathTag, FMF);
+      setFPAttrs(BinOp, FPMathTag, FMF);
     return Insert(BinOp, Name);
   }
 
@@ -1479,7 +1479,8 @@ public:
 
     CallInst *C = CreateIntrinsic(ID, {L->getType()},
                                   {L, R, RoundingV, ExceptV}, nullptr, Name);
-    return cast<CallInst>(setFPAttrs(C, FPMathTag, UseFMF));
+    setFPAttrs(C, FPMathTag, UseFMF);
+    return C;
   }
 
   Value *CreateNeg(Value *V, const Twine &Name = "",
@@ -1532,7 +1533,7 @@ public:
       return Insert(Folder.CreateUnOp(Opc, VC), Name);
     Instruction *UnOp = UnaryOperator::Create(Opc, V);
     if (isa<FPMathOperator>(UnOp))
-      UnOp = setFPAttrs(UnOp, FPMathTag, FMF);
+      setFPAttrs(UnOp, FPMathTag, FMF);
     return Insert(UnOp, Name);
   }
 
@@ -2084,7 +2085,7 @@ public:
       break;
     }
     if (isa<FPMathOperator>(C))
-      C = cast<CallInst>(setFPAttrs(C, FPMathTag, UseFMF));
+      setFPAttrs(C, FPMathTag, UseFMF);
     return C;
   }
 
@@ -2231,7 +2232,7 @@ public:
                      const Twine &Name = "") {
     PHINode *Phi = PHINode::Create(Ty, NumReservedValues);
     if (isa<FPMathOperator>(Phi))
-      Phi = cast<PHINode>(setFPAttrs(Phi, nullptr /* MDNode* */, FMF));
+      setFPAttrs(Phi, nullptr /* MDNode* */, FMF);
     return Insert(Phi, Name);
   }
 
@@ -2240,7 +2241,7 @@ public:
                        MDNode *FPMathTag = nullptr) {
     CallInst *CI = CallInst::Create(FTy, Callee, Args, DefaultOperandBundles);
     if (isa<FPMathOperator>(CI))
-      CI = cast<CallInst>(setFPAttrs(CI, FPMathTag, FMF));
+      setFPAttrs(CI, FPMathTag, FMF);
     return Insert(CI, Name);
   }
 
@@ -2249,7 +2250,7 @@ public:
                        const Twine &Name = "", MDNode *FPMathTag = nullptr) {
     CallInst *CI = CallInst::Create(FTy, Callee, Args, OpBundles);
     if (isa<FPMathOperator>(CI))
-      CI = cast<CallInst>(setFPAttrs(CI, FPMathTag, FMF));
+      setFPAttrs(CI, FPMathTag, FMF);
     return Insert(CI, Name);
   }
 
@@ -2297,7 +2298,7 @@ public:
       Sel = addBranchMetadata(Sel, Prof, Unpred);
     }
     if (isa<FPMathOperator>(Sel))
-      Sel = cast<SelectInst>(setFPAttrs(Sel, nullptr /* MDNode* */, FMF));
+      setFPAttrs(Sel, nullptr /* MDNode* */, FMF);
     return Insert(Sel, Name);
   }