[clang] [CIR][CodeGen] Emit cir.fmuladd for FP-contracted mul+add/sub (PR #215382)

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``````````bash
git-clang-format --diff origin/main HEAD --extensions c,cpp -- clang/test/CIR/CodeGen/fp-contract-on-pragma.cpp clang/test/CIR/CodeGen/fp-contract-pragma.cpp clang/test/CIR/CodeGen/fp-contract.c clang/lib/CIR/CodeGen/CIRGenExprScalar.cpp --diff_from_common_commit
``````````

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View the diff from clang-format here.
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``````````diff
diff --git a/clang/lib/CIR/CodeGen/CIRGenExprScalar.cpp b/clang/lib/CIR/CodeGen/CIRGenExprScalar.cpp
index 7e2c057c1..f3e8e646c 100644
--- a/clang/lib/CIR/CodeGen/CIRGenExprScalar.cpp
+++ b/clang/lib/CIR/CodeGen/CIRGenExprScalar.cpp
@@ -1977,8 +1977,8 @@ static mlir::Value buildFMulAdd(cir::FMulOp mulOp, mlir::Value addend,
 // Checks that (a) the operation is fusable, and (b) -ffp-contract=on.
 // Does NOT check the type of the operation - it's assumed that this function
 // will be called from contexts where it's known that the type is contractable.
-static mlir::Value tryEmitFMulAdd(const BinOpInfo &op,
-                                  CIRGenBuilderTy &builder, bool isSub = false) {
+static mlir::Value tryEmitFMulAdd(const BinOpInfo &op, CIRGenBuilderTy &builder,
+                                  bool isSub = false) {
   assert((op.opcode == BO_Add || op.opcode == BO_AddAssign ||
           op.opcode == BO_Sub || op.opcode == BO_SubAssign) &&
          "Only fadd/fsub can be the root of an fmuladd.");

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https://github.com/llvm/llvm-project/pull/215382