[llvm] [SPIRV] Add FPVariant tracking for floating-point registers in SPIR-V (PR #156871)

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``````````bash
git-clang-format --diff origin/main HEAD --extensions cpp,h -- llvm/lib/Target/SPIRV/SPIRVGlobalRegistry.cpp llvm/lib/Target/SPIRV/SPIRVGlobalRegistry.h
``````````

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``````````diff
diff --git a/llvm/lib/Target/SPIRV/SPIRVGlobalRegistry.cpp b/llvm/lib/Target/SPIRV/SPIRVGlobalRegistry.cpp
index 6255ec554..9ff5408f6 100644
--- a/llvm/lib/Target/SPIRV/SPIRVGlobalRegistry.cpp
+++ b/llvm/lib/Target/SPIRV/SPIRVGlobalRegistry.cpp
@@ -2105,7 +2105,8 @@ SPIRVGlobalRegistry::FPVariant
 SPIRVGlobalRegistry::getFPVariantForVReg(Register VReg,
                                          const MachineFunction *MF) {
   const MachineFunction *Func = MF ? MF : CurMF;
-  DenseMap<const MachineFunction *, DenseMap<Register, FPVariant>>::const_iterator FuncIt =
+  DenseMap<const MachineFunction *,
+           DenseMap<Register, FPVariant>>::const_iterator FuncIt =
       VRegFPVariantMap.find(Func);
 
   if (FuncIt != VRegFPVariantMap.end()) {

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https://github.com/llvm/llvm-project/pull/156871