Enable WaveAllJointReduction pass by default

Switch default for regkey EnableWaveAllJointReduction to true

Author: bowenxue-intel

IGC/common/igc_flags.h

@@ -330,7 +330,7 @@ DECLARE_IGC_REGKEY(bool, DisableLoopSplitWidePHIs, false, "Disable splitting of
 DECLARE_IGC_REGKEY(bool, EnableBarrierControlFlowOptimizationPass, false, "Enable barrier control flow optimization pass", false)
 DECLARE_IGC_REGKEY(bool, EnableWaveShuffleIndexSinking, false, "Hoist identical instructions operating on WaveShuffleIndex instructions with the same source and a constant lane/channel", false)
 DECLARE_IGC_REGKEY(DWORD, WaveShuffleIndexSinkingMaxIterations, 3, "Max number of iterations to run iterative WaveShuffleIndexSinking", false)
-DECLARE_IGC_REGKEY(bool, EnableWaveAllJointReduction, false, "Enable Joint Reduction Optimization.", false)
+DECLARE_IGC_REGKEY(bool, EnableWaveAllJointReduction, false, "Enable Joint Reduction Optimization.", true)
 
 DECLARE_IGC_GROUP("Shader debugging")
 DECLARE_IGC_REGKEY(bool, CopyA0ToDBG0,                  false, " Copy a0 used for extended msg descriptor to dbg0 to help debug", false)