AMDGPU: Use member initializers in MFI

Author: arsenm

llvm/lib/Target/AMDGPU/AMDGPUMachineFunction.cpp

@@ -15,14 +15,9 @@ using namespace llvm;
 
 AMDGPUMachineFunction::AMDGPUMachineFunction(const MachineFunction &MF) :
   MachineFunctionInfo(),
-  LocalMemoryObjects(),
-  ExplicitKernArgSize(0),
-  LDSSize(0),
   Mode(MF.getFunction()),
   IsEntryFunction(AMDGPU::isEntryFunctionCC(MF.getFunction().getCallingConv())),
-  NoSignedZerosFPMath(MF.getTarget().Options.NoSignedZerosFPMath),
-  MemoryBound(false),
-  WaveLimiter(false) {
+  NoSignedZerosFPMath(MF.getTarget().Options.NoSignedZerosFPMath) {
   const AMDGPUSubtarget &ST = AMDGPUSubtarget::get(MF);
 
   // FIXME: Should initialize KernArgSize based on ExplicitKernelArgOffset,

llvm/lib/Target/AMDGPU/AMDGPUMachineFunction.h

@@ -23,26 +23,26 @@ class AMDGPUMachineFunction : public MachineFunctionInfo {
   SmallDenseMap<const GlobalValue *, unsigned, 4> LocalMemoryObjects;
 
 protected:
-  uint64_t ExplicitKernArgSize; // Cache for this.
+  uint64_t ExplicitKernArgSize = 0; // Cache for this.
   Align MaxKernArgAlign;        // Cache for this.
 
   /// Number of bytes in the LDS that are being used.
-  unsigned LDSSize;
+  unsigned LDSSize = 0;
 
   // State of MODE register, assumed FP mode.
   AMDGPU::SIModeRegisterDefaults Mode;
 
   // Kernels + shaders. i.e. functions called by the driver and not called
   // by other functions.
-  bool IsEntryFunction;
+  bool IsEntryFunction = false;
 
-  bool NoSignedZerosFPMath;
+  bool NoSignedZerosFPMath = false;
 
   // Function may be memory bound.
-  bool MemoryBound;
+  bool MemoryBound = false;
 
   // Kernel may need limited waves per EU for better performance.
-  bool WaveLimiter;
+  bool WaveLimiter = false;
 
 public:
   AMDGPUMachineFunction(const MachineFunction &MF);